Abstract:
The present invention relates to an incinerator with a ceramics filter for incinerating raw refuse, general garbage, expanded polystyrene and others generated from a manufacturing plant, a wholesale market, a general firm, a general retail store, a general house and others. 
     According to the present invention, air intakes having a check valve provided thereto are formed to right and left lower portions of an incinerator; an oast is set in a combustion chamber; a tabular ceramics filter for removing a harmful substance is attached to the upper portion of the oast; and a suction port is formed to the upper portion of the tabular ceramics filter.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to improvement of an incinerator for burning up an object to be incinerated such as raw garbage, general refuse, expanded polystyrene and others generated from a manufacturing plant, a wholesale market, a general firm, a general retail shop, a general house and others. 
     2. Description of the Prior Art 
     Conventionally, an object to be incinerated such as raw garbage, general refuse and others generated from a manufacturing plant, a wholesale market, a general firm, a general retail shop, a general house and others is burned up in an incinerator as it is. That is, as shown in FIG. 40, in case of burning up an object to be incinerated  78   g  in an incinerator  78 , the object to be incinerated  78   g  is burned by a method for forcibly sending an air stream by a blast fan or blower  78   f  installed in the vicinity of an air intake  78   h.    
     In other words, as shown in FIG. 40, since the object to be incinerated  78   g  set in the incinerator  78  is burned up by the system for forcibly sending an air stream to burn and incinerate the object to be incinerated  78   g  such as the incinerator  78 , air is forcibly sent from the air intake  78   h  toward the object to be incinerated  78   g  for combustion by using a blast fan or blower  78   f.    
     In the method for forcibly sending the air to burn up the object to be incinerated  78   g  in this manner, a part of the forcibly sent air collides with a surface  78   i  of the object to be incinerated  78   g . The air which has collided with the surface  78   i  of the object to be incinerated  78   g  is returned in a direction of the air intake  78   h  as indicated by an arrow and convected in the vicinity of the blast fan or blower  78   f , which results in a position where strong pressure air  78   e  is generated between the object to be incinerated  78   g  and the blast fan or blower  78   f . The part of the air forcibly sent from the blast fan or blower  78   f  into the incinerator  78  passes through the both side surfaces of the object to be incinerated  3  to be emitted from an outlet  78   a  in the air. 
     As described above, since a pore  78   d  formed to the object to be incinerated  78   g  is minute, the loss of the air forcibly sent by the blast fan or blower  78   f  is high due to a pressure by air blasting, and the air hence collides with only the surface  78   i  of the object to be incinerated  78   g . Therefore, the air does not enter the inside of the object to be incinerated  78   g , and the inside of the object to be incinerated  78   g  is not completely burned up. 
     Further, a rear surface and rear portion  78   c  of the object to be incinerated  78   g  which is the part of the object to be incinerated  78   g  opposed to the outlet  78   a  become anaerobic. At the outlet  78   a , only the weak pressure air  78   b  is obtained. Therefore, although only the outside of the object to be incinerated  78   g  is burned up, the inside of the object to be incinerated  3  is not completely incinerated. 
     However, since a general incinerator has a low combustion temperature, combustion smoke and exhaust gas containing harmful substances such as dioxin and the like is emitted. Additionally, since incinerated ash and the like discharged by burning the object to be incinerated includes harmful substances, the incinerated ash subjected to combustion can not be disadvantageously reused. 
     In case of burning up the objected to be incinerated by the incinerator, general garbage, raw refuse, paper, as well as a carrier bag in a convenience shop, general garbage made of plastic which generates toxic gases, and a plastic bottle or expanded polystyrene which is said to be a factor for generating dioxin are often collectively put in the incinerator to be incinerated without being separated. In particular, a large amount of water contained in them may lower a combustion temperature, and dioxin and the like is apt to be generated. 
     It is, therefore, an object of the present invention is to provide an incinerator having a filter made of ceramics (which will be referred to as a ceramics filter hereunder) attached thereto (which will be referred to as an incinerator with a ceramics filter hereinafter) which does not emit dioxin as a harmful substance even if waste such as raw refuse, general garbage, expanded polystyrene and the like produced from houses or firms is incinerated. 
     SUMMARY OF THE INVENTION 
     In order to achieve this aim, the present invention provides: an incinerator with a ceramics filter, wherein air intakes to which a check valve is provided are formed on right and left lower portions of the incinerator and an oast is set in a combustion chamber, a tabular ceramics filter for removing harmful substances being attached to an upper portion of the oast, a suction port being form to an upper portion of the tabular ceramics filter; an incinerator with a ceramics filter, wherein an air intake to which a check valve is provided is formed to a lower portion of the incinerator and an ashpan is accessibly set, an oast being set in a combustion chamber, a tabular ceramics filter for removing harmful substances being attached to an upper portion of the oast, a suction port being form to an upper portion of the tabular ceramics filter; an incinerator with a ceramics filter, wherein an ashpan is accessibly set to a lower portion of a combustion portion and an oast is set in a combustion chamber, a tabular ceramics filter for removing harmful substances being attached to an upper portion of the oast, a cyclone which inserts an end of an air duct of a blower to a lower edge of an exhaust duct attached to the cyclone and has a dust receiver being attached to the incinerator having a suction port formed thereto above the tabular ceramics filter; an incinerator with a ceramics filter, wherein an intake pipe bent under a combustion portion is connected to an ash receiving chamber in which an ashpan is accessibly set and a oast is set in a combustion chamber, a tabular ceramics filter for removing harmful substances being attached to an upper portion of the oast, a suction portion consisting of a cover and a cyclone which inserts an end of an air duct of a blower to a lower end of an exhaust duct attached to the cyclone and has a dust receiver being attached to the incinerator having a suction port above the tabular ceramics filter; an incinerator with a ceramics filter, wherein an intake pipe bent under a combustion portion is connected to an ash receiving chamber in which an ashpan is accessibly set and an oast is set in a combustion chamber, a tabular ceramics filter for removing harmful substances being attached to an upper portion of the oast, a first filter and a second filter which contain a storage box, are supported by a spring, has a vibrator attached thereto and accommodate therein a spherical ceramics filter being connected to the incinerator having a suction portion formed thereto above the tabular ceramics filter, an suction portion consisting of a cover and a cyclone which inserts an end of an air duct of a blower to a lower end of an exhaust duct attached to the cyclone and has a dust receiver being attached to the second filter; an incinerator with ceramics filter, wherein an intake pipe bent under a combustion portion is connected to an ash receiving chamber in which an ashpan is accessibly set and an oast is set in a combustion chamber, a tabular ceramics filter for removing harmful substances being attached above the oast, a first filter in which the tabular ceramics filter is vertically set in an installation container being connected to the incinerator having a suction port formed thereto above the tabular ceramics filter, a second filter which has a storage box, is supported by a spring, has a vibrator attached thereto and accommodates a spherical ceramics filter being connected to the first filter, a third filter which has a storage box, is supported by a spring, has a vibrator attached thereto and accommodates a spherical ceramics filter being connected to the second filter, a suction portion consisting of a cover and a cyclone which inserts an end of an air duct of a blower to a lower end of an exhaust tube attached to the cyclone and has a dust receiver being connected to the third filter; and a multistage incinerator with a ceramics filter, wherein a tabular ceramics filter is inclined and provided in a combustion chamber in multistage, a cabinet being provided to one end of the tabular ceramics filter inclined and provided in multistage, a burner being attached under the tabular ceramics filter. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view showing a ceramics filter of an incinerator with a ceramics filter according to the present invention; 
     FIG. 2 is an enlarged plan view showing a point A of the ceramics filter of the incinerator with a ceramics filter according to the present invention; 
     FIG. 3 is a front view showing a spherical ceramics filter of the incinerator with a ceramics filter according to the present invention; 
     FIG. 4 is a cross-sectional view taken along the A—A line in FIG. 1, showing a spherical ceramics filter used in the incinerator with a ceramics filter according to the present invention; 
     FIG. 5 is a cross-sectional view showing another embodiment of the spherical ceramics filter used in the incinerator with a ceramics filter according to the present invention; 
     FIG. 6 is a typical drawing showing a flow of an air stream in case of a negative pressure suction method of the incinerator with a ceramics filter according to the present invention; 
     FIG. 7 is a cross-sectional view showing a flow of an air stream in cases where a ceramics filter is attached in a combustion furnace adopting the negative pressure suction method of the incinerator with a ceramics filter according to the present invention; 
     FIG. 8 is a longitudinal cross-sectional view showing the incinerator with a ceramics filter according to the present invention; 
     FIG. 9 is a transverse cross-sectional view showing the incinerator with a ceramics filter according to the present invention; 
     FIG. 10 is a longitudinal cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention; 
     FIG. 11 is a transverse cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention; 
     FIG. 12 is a longitudinal cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention; 
     FIG. 13 is a transverse cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention; 
     FIG. 14 is a longitudinal cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention; 
     FIG. 15 is a transverse cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention; 
     FIG. 16 is a longitudinal cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention; 
     FIG. 17 is a transverse cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention; 
     FIG. 18 is a longitudinal cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention; 
     FIG. 19 is a transverse cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention; 
     FIG. 20 is a longitudinal cross-sectional view showing the state where a tabular ceramics filter is attached to the incinerator with a ceramics filter according to the present invention; 
     FIG. 21 is a longitudinal cross-sectional view showing the state where a pan-like ceramics filter is attached to the incinerator with a ceramics filter according to the present invention; 
     FIG. 22 is a longitudinal cross-sectional view showing a cap-like ceramics filter is attached to the incinerator with a ceramics filter according to the present invention; 
     FIG. 23 is a longitudinal cross-sectional view showing the state where a hollow spherical ceramics filter is attached to the incinerator with a ceramics filter according to the present invention; 
     FIG. 24 is a longitudinal cross-sectional view showing the state where a spherical ceramics filter is attached to the incinerator with a ceramics filter according to the present invention; 
     FIG. 25 is a longitudinal cross-sectional view showing the state where a tabular ceramics filter is vertically attached to the incinerator with a ceramics filter according to the present invention; 
     FIG. 26 is a longitudinal cross-sectional view showing the state where a tabular ceramics filter having a heater embedded therein is attached to the incinerator with a ceramics filter according to the present invention; 
     FIG. 27 is a longitudinal cross-sectional view showing the state where a tabular ceramics filter is attached to the incinerator with a ceramics filter and a stove is also provided; 
     FIG. 28 is a longitudinal view showing the state where a ceramics filter having a tall-hat-like cross section is attached to the incinerator with a ceramics filter according to the present invention; 
     FIG. 29 is a longitudinal cross-sectional view showing the state where a ceramics filter having an inverted-tall-hat-like cross section is attached to the incinerator with a ceramics filter; 
     FIG. 30 is a longitudinal cross-sectional view showing the state where a ceramics filter having a triangular cross section is attached to the incinerator with a ceramics filter according to the present invention and a burner is also disposed; 
     FIG. 31 is a longitudinal cross-sectional view showing the state where a ceramics filter having an inverted-triangular cross section is attached to the incinerator with a ceramics filter and a burner is also provided; 
     FIG. 32 is a longitudinal cross-sectional view showing the state where a continuous U-shaped ceramics filter is attached to the incinerator with a ceramics filter according to the present invention and a burner is also provided; 
     FIG. 33 is a longitudinal cross-sectional view showing the state where a tabular ceramics filter is attached to the incinerator with a ceramics filter according to the present invention in the multistage manner; 
     FIG. 34 is a longitudinal cross-sectional view showing a cyclone with a burner attached to the incinerator with a ceramics filter according to the present invention to be used; 
     FIG. 35 is a longitudinal cross-sectional view of a cyclone with a burner attached to the incinerator with a ceramics filter according to the present invention to be used; 
     FIG. 36 is a front view of a vacuum pump attached to the incinerator with a ceramics filter according to the present invention for suction; 
     FIG. 37 is a plan view of a vacuum pump attached to the incinerator with a ceramics filter according to the present invention for suction; 
     FIG. 38 is a longitudinal cross-sectional view showing a cyclone attached to the incinerator with a ceramics filter according to the present invention to be used; 
     FIG. 39 is a view showing another embodiment of the cyclone attached to the incinerator with a ceramics filter according to the present invention to be used; 
     FIG. 40 is a longitudinal cross-sectional view showing the combustion state of an object to be incinerated when an air streams is forcibly sent in a conventional incinerator. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     An incinerator with a ceramics filter according to the invention of the present application will now be described in detail with reference to the accompanying drawings. 
     FIG. 1 is a perspective view of a tabular ceramics filter used being attached to an incinerator with a ceramics filter according to the present invention, and FIG. 2 is an enlarged view of a point A in the tabular ceramics filter illustrated in FIG.  1 . As shown in FIG. 1, a plurality of very minute pores  2  are formed to the tabular ceramics filter  1  as shown in FIG.  2 . The minute pores  2  are smaller than molecules of dioxin as a harmful substance which is said to be generated when burning up an object to be incinerated. 
     The fine pores  2  are formed across the filter and the pore  2  is as small as a molecule. Molecules can be screened in a fixed range in accordance with a size of that pore. As a material of the ceramics filter, there are zeolite, silicalite activated carbon, porous glass and others, and zeolite is used as ceramics for the ceramics filter in the incinerator with a ceramics filter according to the present invention. Zeolite has uniform pores  2  whose size falls within a range of 0.3 to 1 nm. Since the size of a molecule of dioxin is approximately 1 nm, dioxin can be screened by zeolite. Only zeolite is taken as an example of a material of the ceramics filter used in the invention of the present application, ceramics of silicalite, activated carbon, porous glass and others may be used. 
     FIG. 3 is a front view of a ceramics filter which is used in the incinerator with a ceramics filter according to the invention of the present application and in which ceramics used for removing dioxin as a harmful substance is spherically formed (which will be referred to as a spherical ceramics filter hereinafter); FIG. 4 is a longitudinal cross-sectional view taken along the A—A line in FIG. 3; and FIG. 5 is a longitudinal cross-sectional view showing that powdered calcium hydroxide, powdered activated carbon, powdered calcium oxide and the like is filled in the pores  4  of the spherical ceramics filter illustrated in FIG.  4 . 
     As shown in FIG. 4, an infinite number of pores  4  are formed inside the spherical ceramics filter  3  depicted in FIG.  3 . As shown in FIG. 5, powdered calcium hydroxide, powdered activated carbon and powdered calcium oxide  4   a  are filled in the pores  4  formed beyond number. With the spherical ceramics filter  3  having such a structure, harmful substances such as dioxin can be efficiently removed when this filter is used in the incinerator. 
     FIG. 6 is a longitudinal cross-sectional view of an incinerator for burning and incinerating an object to be incinerated by a method for sucking air, and FIG. 7 is a longitudinal cross-sectional view showing the state where the tabular ceramics filter is attached at a position close to a suction fun disposed in the vicinity of an outlet of the incinerator for burning and incinerating the object to be incinerated by the method for sucking air. 
     The incinerator  5  having the structure shown in FIG. 6 is not an incinerator which forcibly sends air into the incinerator to burn and incinerate the object to be incinerated like an incinerator illustrated in FIG. 40 but an incinerator having the structure such that a suction fan  5   b  for sucking smoke or combustion heat generated at the time of incinerating the object to be incinerated  5   g  in the incinerator  5  is attached to the outlet  5   a.    
     According to the method by which the object to be incinerated  5   g  is burned and incinerated in the incinerator  5  while sucking air by the suction fan  5   b  attached to the outlet  5   a , fresh air is sucked from an air intake  5   h  into the incinerator  5  and air enters the pores  5   e  formed to the object to be incinerated  5   g  so that the inside of the object to be incinerated  5   g  can be completely burned up in the incinerator  5  such as shown in FIG.  6 . 
     When burning up the object to be incinerated  5   g  by such a suction method, air does not stagnate at a position  5   f  in the vicinity of the air intake  5   h , and air flows toward the outlet  5   a , thereby generating no disturbance of air at the rear portion  5   d  of the object to be incinerated  5   g . Therefore, the object to be incinerated  5   g  can be completely burned up even to the inside thereof. As shown in FIG. 7, the tabular ceramics filter  1  is attached to the suction fan  6   b  disposed to the outlet  6   a  so as to be close to the object to be incinerated  5   g  in the incinerator  5  having the structure shown in FIG.  6 . 
     Attaching the tabular ceramics filter  1  to the outlet  6   a  can completely remove a harmful substance such as dioxin generated by incineration of the object to be incinerated  5   g . Reference numeral  6   c  denotes a flow of air;  6   d , a rear portion;  6   e , a pore;  6   f , a position in the vicinity of an air intake; and  5   h , an air intake. 
     FIGS. 8 to  15  are views showing an incinerator having the structure in which the tabular ceramics filter is attached in the incinerator which is the incinerator with a ceramics filter according to the invention of the present application. FIGS. 8 and 9 show the incinerator capable of dealing with macromolecule incineration which is suitable for burning up a high polymer object to be incinerated. FIG. 8 is a longitudinal cross-sectional view and FIG. 9 is a transverse cross-sectional view. 
     FIGS. 10 and 11 are views showing an incinerator for burning up general refuse which is suitable for incineration of general refuse. FIG. 10 is a longitudinal cross-sectional view and FIG. 11 is a transverse cross-sectional view. FIGS. 12 and 13 are view showing a basic apparatus of an incinerator with a ceramics filter according to the present invention. FIG. 12 is a longitudinal cross-sectional view and FIG. 13 is a transverse cross-sectional view. 
     FIGS. 14 and 15 are views showing a basic incinerator having the structure such that air is sucked from the outside of the incinerator with a ceramics filter according to the invention of the present application. FIG. 14 is a longitudinal cross-sectional view and FIG. 15 is a transverse cross-sectional view. 
     FIGS. 16 to  19  show other embodiments of the incinerator with a ceramics filter according to the invention of the present application. That is, these are views showing the incinerators having the tabular ceramics filter and the spherical ceramics filter attached thereto. 
     FIGS. 20 to  32  are views showing ceramics filters having various shapes which are attached to the incinerator with a ceramics filter according to the present invention. FIG. 33 is a view showing another embodiment of the incinerator with a ceramics filter according to the invention of the present application. FIGS. 34 and 35 are views showing a cyclone used being attached to the incinerator with a ceramics filter according to the invention of the present application. 
     FIGS. 36 and 37 are views showing a vacuum pump for suction which is attached to the incinerator with a ceramics filter according to the invention of the present application to be used, and FIG. 38 is a view showing a cyclone attached to the incinerator with a ceramics filter according to the present invention to be used. 
     FIG. 8 is a longitudinal cross-sectional view showing an incinerator corresponding macromolecule which is the incinerator with a ceramics filter according to the present invention, and FIG. 9 is a transverse cross-sectional view of an incinerator corresponding macromolecule which is the incinerator with a ceramics filter according to the present invention. 
     As shown in FIG. 8, the incinerator with a ceramics filter  7  in this example has air intakes  7   a  provided to the right and left lower portions of the incinerator  7 . When smoke, combustion hot air and the like generated by combustion of the object to be incinerated  7   c  in the combustion chamber  7   f  is sucked from the suction port  7   e,  the check valves  7   b  on the both sides are opened and fresh air enters the combustion chamber  7   f  from the air intakes  7   a . The air which has entered the combustion chamber  7   f  is absorbed into the suction port  7   e  while being mixed with molecules of the object to be incinerated  7   c  to perform combustion. The arrow in FIG. 8 shows a flow of air  7   d.    
     When smoke, combustion hot air and the like having passed through fine pores  8   a  formed to the ceramics filter  8  is sucked in the suction port  7   e  by the blast fan or blower and the like, only the macro molecules contained in smoke, combustion hot air and the like can not pass through the ceramics filter  8  and adhere to the pores  8   a  of the ceramics filter  8 . Thus, the macro molecules can not be discharged into the air. As shown in FIG. 9, in the ceramics filter  8 , only the molecules of smoke, combustion hot air and the like having passed through the pores  8   a  of the filter is sucked in the suction port  7   e  to be discharged into the air. As shown in FIG. 8, an oast  7   g  is installed under the ceramics filter  8  in the combustion chamber  7   f , and an object to be dried  7   h  containing a large amount of water is dried by hot air generated by combustion of the object to be incinerated  7   c.    
     FIG. 10 is a longitudinal cross-sectional view of an apparatus dealing with general refuse which is the incinerator with a ceramics filter according to the present invention, and FIG. 11 is a transverse cross-sectional view of an apparatus dealing with general refuse which is the incinerator with a ceramics filter according to the present invention. An arrow indicates a flow of air  9   e  in a combustion chamber  9   g  in the incinerator with a ceramics filter  9 . 
     As shown in FIG. 10, in the incinerator with a ceramics filter  9 , an air intake  9   a  is provided to the lower portion of the incinerator  9 , a tabular ceramics filter  8  is provided to the upper portion of the combustion chamber  9   g , and a suction port  9   f  through which smoke, combustion hot air and the like generated in the combustion chamber  9   g  are sucked or discharged is provided above the tabular ceramics filter  8 . When smoke, combustion hot air and the like generated in the combustion chamber  9   g  is sucked by a blast fan or blower directly set at the suction port  9   f  through the suction port  9   f , a vacuum is formed in the combustion chamber  9   g , and a check valve  9   b  provided to the air intake  9   a  is opened so that the outside air is taken from the air intake into the combustion chamber  9   g . The outside air taken in the combustion chamber  9   g  by the air intake  9   a  performs combustion while being mixed with molecules of an object to be incinerated  7   c , and smoke, combustion hot air and the like is sucked to the suction port  9   f.    
     When the object to be incinerated  9   d  is burned up, smoke, combustion hot air and the like pass through fine pores  8   a  formed to the ceramics filter  8  provided to the upper portion of the combustion chamber  9   g , and the combustion hot air flows in a direction of the suction port  9   f  like the flow of air  9   e  indicated by an arrow. When the combustion hot air such as smoke and the like passes through the fine pores  8   a  formed to the ceramics filter  8 , only molecules whose size is smaller than the pore  8   a  formed to the ceramics filter  8  can pass through the pores  8   a  of the ceramics filter  8 . If the size of the molecule is larger, it can not pass through the pore  8   a  formed to the ceramics filter  8 . An ash receiving chamber having an ashpan  9   c  set therein is provided below the combustion chamber  9   g  of the incinerator  9 . This ashpan  9   c  can be accessible from the incinerator  9 . Further, an oast  9   h  is set in the combustion chamber  9   g  under the ceramics filter  8  and can dehydrate an object to be dried  9   i  containing a large amount of water. 
     As show in FIG. 11, the molecule having passed through the filter pore  8   a  formed to the ceramics filter  8  is absorbed into the suction port  9   f . However, this molecule dioxin as a harmful substance has the size larger than the fine pore  8   a  formed to the ceramics filter  8 , dioxin adheres to the pore  8   a  of the ceramics filter  8 . 
     FIG. 12 is a longitudinal cross-sectional view of a basic simplified incinerator which is the incinerator with a ceramic filter according to the present invention, and FIG. 13 is a transverse cross-sectional view of the basic simplified incinerator which is the incinerator with a ceramic filter according to the present invention. An arrow indicates a direction of an air flow  10   e  which is taken into the incinerator with a ceramics filter of this example to flow in a combustion chamber  10   k  and a cyclone chamber  10   g  of a cyclone  10   b.    
     As shown in FIGS. 12 and 13, the incinerator with a ceramics filter  10  of this example consists of the combustion chamber  10   a  and a cyclone  10   b.  An object to be incinerated  10   d  to be burned up in the incinerator  10   a  is consumed in the combustion chamber  10   k,  and smoke, hot air and the like generated from combustion in the combustion chamber  10   k  pass through fine pores  8   a  formed tot he ceramics filter  8 . The molecule of dioxin which is a harmful substance contained in smoke, combustion hot air and the like adheres to the pores  8   a  of the ceramics filter when trying to pass through the pores  8   a.  The molecules other than those of dioxin, which can pass through the pores  8   a  formed to the ceramics filter  8 , are separated and screened from those which can not pass through the same, and only the molecules having passed through the pores  8   a  of the ceramics filter  8  are sucked into the cyclone chamber  10   g  of the cyclone  10   b.  A cooling system for cooling down is attached at a connection portion  10   f,  and smoke, combustion hot air and the like generated in the combustion chamber  10   k  are cooled down at the connection portion  10   f  to be sucked into the cyclone chamber  10   g.    
     In this manner, smoke, combustion hot air and the like are separated from dioxin and others which are harmful substances contained in smoke, combustion air and the like. That is, only fine molecules whose size is smaller than that of the pore  8   a  formed to the ceramics filter  8  are caused to pass through the pore  8   a.  The screened smoke, combustion hot air and the like are sucked into the cyclone chamber  10   g  of the cyclone  10   b.    
     In the incinerator with a ceramics filter  10  of this example, an end of an air duct  10   m  of a blower  10   h  is inserted to the lower portion of an exhaust duct  10   i  set in the cyclone chamber  10   g  of the cyclone  10   b.  When the blower  10   h  is driven, and air is sent from the air duct  10   m  into the exhaust tube  10   i  of the cyclone chamber  10   g  as an air stream, and the sent air is forcibly discharged from the outlet  10   j  into the air, thereby forming a vacuum in the cyclone chamber  10   g.    
     Therefore, an air pressure in the cyclone chamber  10   g  becomes lower than that in the combustion chamber  10   k , and there occurs a difference in pressure between the combustion chamber  10   k  and the cyclone chamber  10   g.  Thus, smoke, combustion hot air and the like in the cyclone chamber  10   g  pass through the connection portion  10   f  having the cooling system attached thereto to be sucked into the cyclone chamber  10   g  (this will be referred to as an ejector effect hereinafter). As shown in FIG. 13, smoke, combustion hot air and the like screened and sucked in the cyclone chamber  10   g  move down while rotating spirally in the cyclone chamber  10   g  of the cyclone  10   b . They are then sucked from the lower end of the exhaust tube  10   i  and discharged from the outlet  10   j  of the exhaust tube  10   i  into the air. Reference numeral  101  denotes a dust receiver. An oast  10   n  is set under the ceramics filter  8  provided in the combustion chamber  10   k  in order to dehydrate an object to be dried  10   o  containing a large amount of water. 
     FIG. 14 is a longitudinal cross-sectional view of an apparatus such that a suction portion is added to the combustion portion having an intake pipe arranged in the incinerator with a ceramics filter according to the present invention, and FIG. 15 is a transverse cross-sectional view showing a filter portion of the incinerator with a ceramics filter of this example. 
     As shown in FIGS. 14 and 15, the incinerator with a ceramics filter  11  of this example is constituted by a combustion portion  11   a  and a suction portion  11   b . The combustion portion  11   a  consists of an intake pipe  11   d  having an air intake  11   c  for taking in air; a combustion chamber  11   m ; a pan  11   e  for receiving incinerated ash; and a ceramics filter  8  for screening combustion smoke in the molecule level. 
     The suction portion  11   b  is made up of: an intake pipe  11   d  having an air intake  11   c  for taking air to a pan  11   e  set to the lower portion of the combustion portion  11   a ; a cyclone  11   i  in which an exhaust duct  11   k  having an outlet  111  is provided; and a blower  11   j  for inserting the end of the air duct  11   n  to the lower end of the exhaust duct  11   k . The intake pipe  11   d  is bent and one end of the intake pipe  11   d  is connected to the lower portion of the combustion portion  11   a.    
     In the combustion chamber  11   m , an oast  11   o  for dehydrating an object to be dried  11   p  containing a large amount of water is so provided as to protrude to the combustion chamber  11   m . The object to be dried  11   p  which contains a large amount of water and put on the oast  11   o  is dried by hot air generated by combustion of the object to be incinerated  11   f.    
     Explaining the air flow in the incinerator with a ceramics filter of this example, the air flow  11   g  moves as indicated by an arrow. That is, when the object to be incinerated  11   f  is inflamed and the blower  11   j  is driven, since the air stream sent from the blower  11   j  is forcibly moved from the end of the air duct  11   n  into the exhaust duct  11   k , smoke, combustion hot air and the like in the cyclone  11   i  are sucked from the lower end of the exhaust duct  11   k  having the cover and discharged from the outlet  111 . 
     Then, they are forcibly discharged from the exhaust duct  11   k  into the air, and a vacuum is hence formed in the cyclone  11   i . Therefore, as to smoke, combustion hot air and the like generated from the objected to be incinerated  11   f  and the object to be dried  11   p  in the combustion chamber  11   m  through the connection portion  11   h  having a cooling chamber provided thereto, only the molecules having passed through the pores  8   a  of the ceramics filter  8  are discharged from the exhaust duct  11   k , and dioxin as a harmful substance which can not pass through the pores  8   a  formed to the ceramics filter  8  is removed and sucked in the cyclone  11   i . As a result, a vacuum is also formed in a chamber in which the pan  11   e  is set, and the outside air from the air intake  11   c  passes through the intake pipe  11   d  to flow into the chamber with the pan  11   e  in which a vacuum is formed. Reference numeral  11   q  denotes a cover for preventing rain water from entering the intake pipe  11   d  and exhaust duct  11   k.    
     FIG. 16 is a longitudinal cross-sectional view showing the state in which the tabular ceramics filter and the spherical ceramics filter are attached to the incinerator with a ceramics filter according to the present invention, and FIG. 17 is a transverse cross-sectional view showing the state in which the tabular ceramics filter and the spherical ceramics filter are attached to the incinerator with a ceramics filter according to the present invention. 
     As shown in FIGS. 16 and 17, this example is made up of: a combustion portion  13  having the ceramics filter  8  provided thereto; a first filter  14  accommodating therein a plurality of spherical ceramics filter  14   c  formed into a granulated form; a second filter  15  similarly accommodating therein a plurality of spherical ceramics filters  15   c ; and a suction portion  16  having a cyclone  16   a.    
     The incinerator with a ceramics filter  12  of this example has the structure for filtering smoke, combustion hot air and the like generated in the combustion portion  13  by three stages, i.e., the tabular ceramics filter  8 , the first filter  14  accommodating therein the spherical ceramics filters  14   c  and the second filter  15  accommodating therein the spherical ceramics filters  15   c  which are the filter for removing harmful substances such as dioxin. This structure can completely remove dioxin and the like which is a harmful substance contained in smoke, combustion hot air and the like. 
     The combustion portion  13  is constituted by a bent intake pipe  12   b  having an air intake  12   a  for taking in air; a combustion chamber  13   f  to which an oast  13   g  for dehydrating an object to be dried  13   h  containing a large amount of water is attached; an ashpan  13   b  for receiving incinerated ash; and a tabular ceramics filter  8  for screening combustion smoke in the molecule level. The intake pipe  11   d  having the air intake  12   a  for taking in outside air is connected to an ash receiving chamber in which the ashpan  13   b  is set through the side portion of the cyclone  16   a  and the lower portions of the first filter  14  and the second filter  15  so that fresh air enters the ash receiving chamber from the inlet  13   a.    
     As shown in FIGS. 16 and 17, both the first filter  14  and the second filter  15  are hollow cylinders, and the lower portion of each filter has a cone-like shape. There are partitions  14   i  and  15   i  in the first filter  14  and the second filter  15  in order to divide into right filter chambers  14   a  and  15   a  and left filter chambers  14   b  and  15   b . A plurality of spherical ceramics filters  14   c  and  15   c  which are filters formed into a ball-like shape are accommodated in the right filter chambers  14   a  and  15   a  and the left filter chambers  14   b  and  15   b.    
     The first filter  14  and the second filter  15  are supported by springs  14   e  and  15   e , and to the lower portions of the first filter  14  and the second filter  15  are set storage boxes  14   f  and  15   f  for accommodating therein filtered materials which are harmful substances (dioxin) filtered by the first filter  14  and the second filter  15 . 
     The suction portion  16  is constituted by: a cyclone  16   a ; a blower  16   b  having an air duct  16   f ; an exhaust duct  16   c  which is inserted into and attached to the cyclone  16   a ; and an outlet  16   d . Smoke, combustion hot air and the like generated in the combustion portion  13  pass through the tabular ceramics filter  8 , the connection portion  13   e  having a cooling chamber for cooling down, and the connection portion  14   g  from the inside of the first filter  14 . They then enter the second filter  15  accommodating therein a plurality of spherical ceramics filters  15   c.    
     Thereafter, they flow into the cyclone  16   a  through the connection portion  15   g  to be discharged from the exhaust duct  16   c.  Then, smoke, combustion hot air and the like filtered to contain no harmful substances are emitted from the outlet  16   d . In this manner, smoke, combustion hot air and the like generated in the combustion chamber  13   f  circulate through the tabular ceramics filter  8  in the combustion portion  13 , the first filter  14 , the second filter  15 , the cyclone  16   a  and the exhaust duct  16   c  in the mentioned order to be discharged. 
     The reason of such circulation is as follows. Since the air stream is sent from the end of the air duct  16   f  into the exhaust duct  16   c  through the lower end of the exhaust duct  16   c  by drive of the blower  16   b , a vacuum is entirely formed in the cyclone  16   a . Then, smoke, combustion hot air and the like cooled down in the connection portion  15   g  having the cooling chamber for cooling down flow from the second filter  15  into the cyclone  16   a  in such a manner that smoke, combustion hot air and the like in the combustion portion  13 , the first filter  14  and the second filter  15  are sucked. 
     Harmful substances such as dioxin contained in smoke, combustion hot air and the like generated in the combustion chamber  13   f  can not pass through the pores  8   a  formed to the tabular ceramics filter  8  when trying to pass through the tabular ceramics filter  8 . Only the smoke, combustion hot air and the like having passed through the filter  8  flow into the first filter  14  to be filtered by the second filter  15 . Consequently, only the smoke, combustion hot air and the like from which harmful substances such as dioxin contained in the smoke, combustion hot air and the like are removed are discharged into the air. 
     FIG. 18 is a longitudinal cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention, and FIG. 19 is a transverse cross-sectional view of the incinerator with a ceramics filter according to the present invention. 
     As shown in FIGS. 18 and 19, the incinerator with a ceramics filter  17  of this example is constituted by: a combustion portion  18  which accessibly provides an ashpan  18   b  in an ash receiving chamber, sets an oast  18   f  for dehydrating an object to be dried  18   g  and provides a tabular ceramics filter  8  having pores  8   a  formed thereto horizontally set above the oast  18   f ; a filter portion consisting of a first filter  19  which is a tabular ceramics filter  23  vertically accommodated and set in a installation container  19   a , a second filter  20  accommodating therein a plurality of spherical ceramics filter  20   c  and a third filter  21  accommodating therein a plurality of spherical ceramics filter  21   c ; and a suction portion  22 . 
     The incinerator with a ceramics filter  17  of this example has a structure such that smoke, combustion hot air and the like are filtered in four stages, i.e., the tabular ceramics filter  8  whose filter is horizontally set in the combustion portion  18 , the vertical set first ceramics filter  19  which is the tabular ceramics filter  23 , the second filter  20  accommodating therein the spherical ceramics filters  20   c  and the third filter  21  accommodating therein the spherical ceramics filters  21   c . This structure can completely remove dioxin which is a harmful substance contained in smoke, combustion hot air and the like. 
     The combustion portion  18  consists of: a bent intake pipe  17   b  having an air intake  17   a  for taking in air; a combustion chamber  18   e  to which an oast  18   f  for dehydrating an object to be dried  18   g  containing a large amount of water is attached; a pan  18   b  for receiving incinerated ash; and a tabular ceramics filter  8  for screening combustion smoke in the molecule level. The intake pipe  17   b  having the air intake  17   a  for taking in outside air is connected to the ash receiving chamber in which an ashpan  13   b  is set through the side portion of a cyclone  22   a  of a suction portion  22  and the lower portions of the first filter  19 , the second filter  20  and the third filter  21 . 
     As shown in FIGS. 18 and 19, the tabular ceramics filter  23  is vertically set in the installation container  19   a  in the first filter  19 . There are a right chamber  19   c  and a left chamber  19   d  on the right and left sides of the tabular ceramics filter  23 , respectively. 
     Reference numeral  19   b  denotes a right connection tube, and  19   e , a left connection tube. Both the second filter  20  and the third filter  21  are hollow cylinders, and the lower portion of each filter has a cone-like shape. 
     There are partitions  20   i  and  21   i  in the second filter  20  and the third filter  21  in order to divide into right filter chambers  20   a  and  21   a  and left filter chambers  20   b  and  21   b . A plurality of ball-like spherical ceramics filters  20   c  and  21   b  are accommodated in the right filter chambers  20   a  and  21   a  and the left filter chambers  20   b  and  21   b.    
     The right connection tube  19   b  and the left connection tube  19   e  are connected to the installation container  19   a  of the first filter  19  in which the tabular ceramics filter  23  is housed, and the right connection tube  19   b  is connected to the combustion portion  8  while the left connection tube  19   e  is connected to the second filter  20 . Springs  20   e  and  21   e  are provided under the second filter  20  and the third filter  21  so as to support these filters, and storage boxes  20   f  and  21   f  for accommodating therein filtered materials  20   g  and  21   g  which are harmful substances (dioxin) filtered by the second filter  20  and the third filter  21  are provided under the second filter  20  and the third filter  21 . 
     The suction portion  22  consists of a cyclone  22   a ; a blower  22   b  having an air duct  22   e ; an air duct  22   e  inserted and attached in the cyclone  22   a ; and an outlet  22   d.  Smoke, combustion hot air and the like generated in the combustion portion  18  pass through the tabular ceramics filter  8  horizontally set in the combustion chamber  18   e . They further pass through the right connection tube  19   b , the first filter  19  to which the tabular ceramics filter  23  is attached; the left connection tube  19   e , the inside of the connection portion.  19   f  having a cooling chamber for cooling down, the second filter  20 , the connection portion  20   h , the third filter  21 , and the inside of the connection portion  21   h  having a cooling chamber for cooling down and then enter the cyclone  22   a.    
     Thereafter, as to smoke, combustion hot air and the like which have entered the cyclone  22   a  through the connection portion  21   h , the smoke, combustion hot air and the like discharged from the air duct  22   e  and filtered to contain no harmful substance such as dioxin are emitted from the outlet  22   d.    
     In this manner, the smoke, combustion hot air and the like are discharged through the combustion portion  18 , the first filter  19 , the second filter  20 , the third filter  21 , the cyclone  22   a  and the exhaust duct  22   c  in the mentioned order because the air duct  22   e  attached to the blower  22   b  is inserted to the lower end of the exhaust duct  22   c  set in the cyclone  22   a.    
     Since the air stream is sent from the end of the air duct  22   e  into the exhaust duct  22   c  through the lower end of the exhaust duct  22   c  by drive of the blower  22   b , a vacuum is entirely formed in the cyclone  22   a.  Thus, the smoke, combustion hot air and the like in the combustion chamber  18 , the first filter  19 , the second filter  20  and the third filter  21  flow into the cyclone  16   a  so as to be sucked. 
     FIGS. 20 to  24  and FIG. 27 are longitudinal cross-sectional view showing different shapes of the ceramics filter set in the combustion portion of the incinerator with a ceramics filter according to the present invention. Further, FIGS. 25 and 26 are longitudinal cross-sectional views showing the structure of a ceramics filter in cases where the tabular ceramics filter is vertically set. Furthermore, FIGS. 28 to  32  are longitudinal cross-sectional views showing the structure where any other ceramics filter is attached in the combustion portion. 
     FIG. 20 is a longitudinal cross-sectional view showing the state where the tabular ceramics filter is attached in the combustion portion of the incinerator with a ceramics filter according to the present invention. Burners  24   c  and  24   d  are set at two positions in an upper portion  26   b  of a tabular ceramics filter  25  disposed between a right furnace wall  25   a  and a left furnace wall  25   b  in a furnace, and burners  24   a  and  24   b  are also provided at two positions in a lower portion  26   a  of the tabular ceramics filter  25 . 
     The respective burners  24   a ,  24   b ,  24   c  and  24   d  are attached on the right furnace wall  25   a  and the left furnace wall  25   b . Although the burners are set at four positions in the lower portion  26   a  and the upper portion  26   b  of the tabular ceramics filter  25  disposed to the incinerator with a ceramics filter  24  in this example, it is possible to adopt a structure such that a burner is provided at any one position. 
     In addition, burners may be provided at any two position. Reference numeral  26  denotes a flow of air. Moreover, burners may be provided at any three positions. By adopting the structure where the burners are provided in this manner, when an unburned material is clogged in the fine pores formed to the tabular ceramics filter  25 , that unburned material can be removed. 
     FIG. 21 is a view showing the state where a pan-like ceramics filter having a pan-like cross section is attached in the combustion portion of the incinerator with a ceramics filter according to the present invention. As shown in FIG. 21, in an incinerator with a ceramics filter according to the present invention, a pan-like ceramics filter  28  is employed as a ceramics filter provided in the combustion portion. The pan-like ceramics filter  28  is provided between a right furnace wall  28   a  and a left furnace wall  28   b  in the furnace. In this example, burners  27   a  and  27   b  are set at two positions in a lower portion  29   a  of the pan-like ceramics filter. The burners  24   c  and  24   d  are attached to the right furnace wall  28   a  and the left furnace wall  28   b . It is needless to say that the burners  24   c  and  24   d  do not have to be set at two position and a burner may be provided at one position. 
     FIG. 22 is a vertical cross-sectional view showing a part where a cap-like ceramics filter having a cap-like cross section is provided in the combustion portion of the incinerator with a ceramics filter according to the present invention. In this example, a ceramics filter  30  corresponds to a cap-like ceramics filter  31  having a cap-like cross section. Burners  30   a  and  30   b  are set in an upper portion  32   b  of the cap-like ceramics filter  31 , and the burners  30   a  and  30   b  are provided at two position with their ends facing downwards. In this example, no burner is provided to the lower portion  32   a  of the cap-like ceramics filter  31 . The cap-like ceramics filter  31  is set between the right furnace wall  31   a  and the left furnace wall  31   b  in the furnace. 
     The burners  30   a  and  30   b  are provided on the right furnace wall  31   a  and the left furnace wall  31   b . Of course, the burner may be provided only at one position. Reference numeral  32  indicates a flow of air, and air passes through the cap-like ceramics filter  31  from the lower portion  32   a  of the cap-like ceramics filter  31  and flows to the upper portion  32   b  of the cap-like ceramics filter  31 . 
     FIG. 23 is a longitudinal cross-sectional view showing the structure such that spherical hollow ceramics filter is provided in the combustion portion of the incinerator with a ceramics filter. As shown in FIG. 23, as to the ceramics filter  33  of this example, the ceramics filter  33  set in the combustion chamber corresponds to a spherical ceramics filter  34  having a hollow portion  35   b . The spherical hollow ceramics filter  33  is provided between the right furnace wall  34   a  and the left furnace wall  34   b  in the furnace. 
     Burners  33   a  and  33   b  are provided to a lower portion  35   a  of the spherical ceramics filter  34  having the hollow portion  35   b  in the right-and-left direction, and burners  33   c  and  33   d  are also provided to an upper portion  35   c  of the spherical hollow ceramics filter  34  in the right-and-left direction. The burners  33   a ,  33   b ,  33   c  and  33   d  are disposed on the right furnace wall  34   a  and the left furnace wall  34   b . Although the burners  33   a ,  33   b ,  33   c  and  33   d  are provided at four positions, the burner may be provided at only one position. Further, the burners may be provided at only two positions or three positions. Reference numeral  35  denotes a flow of air. 
     FIG. 24 is a longitudinal cross-sectional view showing the structure where the ceramics filter attached to the incinerator with a ceramics filter according to the present invention has a spherical ceramics filter having no hollow portion provided in the combustion portion. As shown in FIG. 24, as to the ceramics filter  36  of this example, the ceramics filter  36  set in the combustion portion corresponds to the spherical ceramics filter  37  having no hollow portion therein. The spherical ceramics filter  37  having no hollow portion is set between a right furnace wall  37   a  and a left furnace wall  37   b  in the furnace. 
     Burners  36   a  and  36   b  are provided to a lower portion  38   a  of the spherical no hollow spherical ceramics filter  37  in the right-and-left direction, and burners  36   c  and  36   d  are also provided to an upper portion  38   b  of the spherical ceramics filter  37  in the right-and-left direction. The respective burners  36   a ,  36   b ,  36   c  and  36   d  are disposed to the right furnace wall  37   a  and the left furnace wall  37   b . Although the burners  36   a ,  36   b ,  36   c  and  36   d  are provided at four position, the burner may be provided at only one position. Further, the burners may be provided only at two positions or three position. Reference numeral  38  denotes a direction of an air flow. 
     FIG. 25 is a longitudinal cross-sectional view showing the state where a tabular ceramics filter as a ceramics filter disposed to the incinerator with a ceramics filter is vertical set. In the ceramics filter  39  according to the present invention, a tabular ceramics filter  40  is vertically set in an installation container  40   a , and four burners  39   a ,  39   b ,  39   c  and  39   d  are set at symmetrical positions with the tabular ceramics filter  40  in the center. The ceramics filter  39  of this example is set as shown in the longitudinal cross-sectional view of FIG.  18 . 
     Reference numeral  41  designates a flow of air. The air flows from a right chamber  41   a  and a left chamber  41   b  formed on the right and left sides of the vertically set tabular ceramics filter  40  toward the left and right surfaces of the tabular ceramics filter  40 . In this manner, clogging can be prevented by heating the tabular ceramics filter  40  from the both right and left surfaces by the burners  39   a ,  39   b ,  39   c  and  39   d.    
     FIG. 26 is a longitudinal cross-sectional view showing the state where a tabular ceramics filter having a heater embedded therein is vertically set in the incinerator with a ceramics filter according to the present invention. In the incinerator with a ceramics filter such that the tabular ceramics filter  42  having a heater  42   a  embedded therein is provided, the tabular ceramics filter  42  having a heater  42   a  embedded therein is vertically set in an installation container  43 . The tabular ceramics filter  42  of this example is provided as shown in the longitudinal cross-sectional view of FIG.  18 . 
     Reference Numeral  44  denotes a flow of air. The air flows from a right chamber  44   a  and a left chamber  44   b  formed on the right and left sides of the vertically set tabular ceramics filter toward the right and left surfaces of the tabular ceramics filter  42  having the heater  42   a  embedded therein. In this manner, the tabular ceramics filter  42  itself can be prevented from being clogged by providing the heater  42   a  inside the tabular ceramics filter  42 . 
     FIG. 27 is a longitudinal cross-sectional view showing the state where a tabular ceramics filter is provided to the incinerator with a ceramics filter according to the present invention and heated by a stove. As shown in FIG. 27, according to the tabular ceramic filter  46  of the ceramics filter  45  in this example, a plurality of stoves  46   a  are provided to a lower portion  48   a  of the tabular ceramics filter  46  disposed to a right furnace wall  47  and a left furnace wall  47   a  so that the tabular ceramics filter  46  is heated by a plurality of the stoves  46   a . In this manner, the tabular ceramic filter  46  can be prevented from being clogged by heating the tabular ceramics filter  46  from the lower portion  48   a . Reference numeral  48  denotes a flow of air, and air flows from the lower portion  48   a  upwards. 
     FIG. 28 is a longitudinal cross-sectional view showing the state where a ceramics filter having a tall-hat-like cross section is provided in the combustion portion of the incinerator with a ceramics filter and heated by disposed burners. In the ceramic filter  49  of this example, burners  49   a  and  49   b  are provided at two positions on the external side of the cylindrical portion of the tall-hat-like ceramics filter  50  disposed to a right furnace wall  50   a  and a left furnace wall  50   b  with ends of the burners  49   a  and  49   b  facing downwards. Further, an air flow  51   a  like a whirlpool is formed on the external side of the tall-hat-like ceramics filter  50  by power of flames from the burners  49   a  and  49   b . The air flow  51  passes through the tall-hat-like ceramics filter  50  from the lower portion  52  to flow into the upper portion  52   b.    
     Forming such an air flow  51  can remove dioxin which is a harmful substance by using the tall-hat-like ceramics filter  50 . The air flow  51  passes through an inner portion  52   a  from the lower portion  52  of the tall-hat-like ceramics filter  50  to enter the upper portion  52   b.    
     FIG. 29 is a longitudinal cross-sectional view showing the state where a ceramics filter having an inverted-tall-hat-like cross section is provided in the combustion portion of the incinerator with a ceramics filter according to the present invention. 
     As shown in FIG. 29, in the ceramics filter  53  of this example, burners  53   a  and  53   b  are provided on the external side of a cylindrical portion of the inverted-tall-hat-like ceramics filter  54  with ends of the burners  53   a  and  53   b  facing downwards. Further the inverted-tall-hat-like ceramics filter  54  is heated by the burners  53   a  and  53   b.    
     The inverted-tall-hat-like ceramics filter  54  is fixed to a right furnace wall  54   a  and a left furnace wall  54   b . An air flow  55   a  like a whirlpool is formed on the external side of the inverted-tall-hat-like ceramics filter  54  by power of flames from the burners  53   a  and  53   b.    
     Forming the air flow  55   a  in this manner can remove dioxin which is a harmful substance by using the inverted-tall-hat-like ceramics filter  54 . Reference numeral  55  denotes an air flow, and the air passes through an inner portion  56   a  from a lower portion  56  of the inverted-tall-hat-like ceramics filter  54  to flow to an upper portion  56   b . In this way, the ceramics filter  54  can be prevented from being clogged by heating the inverted ceramics filter  54 . 
     FIG. 30 is a longitudinal cross-sectional view showing the state where a ceramics filter having a triangular cross section is attached to a combustion portion of the incinerator with a ceramics filter according to the present invention. In the triangular ceramics filter  58  of this example, burners  57   a  and  57   b  are attached at two position of an upper portion  60   a  of the triangular ceramics filter  58  with ends of the burners  57   a  and  57   b  being directed downwards. In case of the ceramics filter of this example, no burner is attached to a lower portion  60  of the triangular ceramics filter  58 . 
     The burners  57   a  and  57   b  are attached to right and left furnace walls  58   a  and  58   b . Of course, a burner may be provided at only one position. An arrow denoted by reference numeral  59  indicates a flow of air, and the air passes through the triangular ceramics filter  58  from a lower portion  60   a  of the triangular ceramics filter  58  to flow to the upper portion  60   a  of the triangular ceramics filter  58 . 
     FIG. 31 is a longitudinal cross-sectional view showing the state where an inverted triangular ceramics filter is attached to the combustion portion of the incinerator with a ceramics fitter according to the present invention. In the inverted triangular ceramics filter  62  of this example, burners  61   a  and  61   b  are attached at two position of a lower portion  64  of the inverted triangular ceramics filter  62  with ends of the burners  61   a  and  61   b  being directed upwards. In case of the ceramics filter of this example, no burner is attached to an upper portion  60   a  of the inverted triangular ceramics filter  62 . 
     The burners  61   a  and  61   b  are provided between a right furnace wall and a left furnace wall  62   b . Of course, a burner may be provided at only one position. An arrow denoted by reference numeral  63  indicates a flow of air, and the air passes through the inverted triangular ceramics filter  62  from a lower portion  64  of the inverted triangular ceramics filter  62  to flow to an upper portion  64   a  of the inverted triangular ceramics filter  62 . 
     FIG. 32 is a longitudinal cross-sectional view showing the state where a continuous U-shaped ceramics filter is attached, the ceramics filter having a U-shaped cross section being connected to the combustion portion of the incinerator with a ceramics filter. In the continuous U-shaped ceramics filter  66  of the ceramics filter  65  in this example, burners  65   a  and  65   b  are provided at two position of a lower portion  68  of the continuous U-shaped ceramics filter with the ends of the burners  65   a  and  65   b  being directed upwards. In case of the ceramics filter of this example, no burner is attached to an upper portion  68   a  of the continuous U-shaped ceramics filter  66 . 
     The burners  65   a  and  65   b  are provided between a right furnace wall  66   a  and a left furnace wall  66   b . Of course, the burner may be provided at only one position. An arrow denoted by reference numeral  67  indicates a flow of air, and the air passes through the continuous U-shaped ceramics filter  66  from the lower portion  68  of the continuous U-shaped ceramics filter  66  to flow to the upper portion  68   a  of the continuous U-shaped ceramics filter  66 . 
     FIG. 33 shows an other embodiment of the incinerator with a ceramics filter according to the present invention, which is an incinerator in which ceramics filters are set in multiple stages in the combustion portion. As shown in FIG. 33, the incinerator  69  with a ceramics filter of this example is an incinerator  69  having a structure such that respective tabular ceramics filters  71 ,  71   a  and  71   b  are provided on a slat at three stages, i.e., an upper portion, a center and a lower portion in a combustion portion  69   f.    
     Cabinets  69   d  for accommodating therein a filtered substance  69   e  removed from smoke, combustion hot air and the like by the tabular ceramics filters  71 ,  71   a  and  71   b  are provided in the combustion portion  69   f . Further, burners  70 ,  70   a  and  70   b  are attached to the combustion portion  69   f . The respective burners  70 ,  70   a  and  70   b  are upwardly provided below the tabular ceramics filters  71 ,  71   a  and  71   b  set in the combustion portion  69   f  so as to face the lower surfaces of the tabular ceramics filters  71 ,  71   a  and  71   b.    
     A fire grate  69   c  is having a vibrator  69   g  is provided to a lower portion of a combustion portion  69   f . The vibrator  69   g  vibrates the fire grate  69   c  in such a manner that incinerated ash  69   i  remaining after burning of an object to be incinerated  69   h  does not  11   e  on the fire grate  69   c,  and the incinerated ash  69   i  on the fire grate  69   c  is caused to fall on an ashpan  69   b.  The ashpan  69   b  can be removed from or inserted into an ash receiving chamber where the ashpan is set. 
     Smoke, combustion hot air and the like pass through the tabular ceramics filters  71 ,  71   a ,  71   b  and  71   c  provided on a slat at three stages and discharged so as to be sucked from an emission port  72   a . In this manner, when the tabular ceramics filters are respectively provided at three stages to the upper portion, an amount of dioxin discharged into the air can be greatly reduced. 
     FIG. 34 is a longitudinal cross-sectional view showing a cyclone with a burner attached to the combustion portion of the incinerator with a ceramics filter according to the present invention. FIG. 35 is a transverse cross-sectional view showing the cyclone with a burner attached to the combustion portion of the incinerator with a ceramics filter according to the present invention. 
     As shown in FIGS. 14 and 15, the incinerator with a ceramics filter according to the present invention has a structure such that an object to be incinerated is burned up and incinerated in a combustion portion and the ceramics filter is used to remove dioxin which is a harmful substance contained in smoke, combustion hot air and the like by filtration of the ceramics filter. 
     However, as shown in FIGS. 34 and 35, a minute amount of dioxin, an unburned material and the like may be produced even if smoke, combustion hot air and the like generated by combustion of an object to be incinerated in the combustion portion passes through the ceramics filter. Since the ceramics filter is provided, when a harmful substance, an unburned material and the like is again burned by attaching the cyclone with a burner  73  to the combustion portion, the harmful substance such as dioxin is prevented from being discharged in the air. 
     An object to be incinerated is burned in a combustion chamber of the combustion portion to generate a harmful substance such as dioxin, an unburned material and the like. They pass through the ceramics filter provided in the combustion portion. Then, smoke, combustion hot air and the like from which almost all the harmful substance such as dioxin, the unburned material and the like are removed passes through a connection duct  73   a  and are sucked in and flows into the cyclone with a burner  73  like an air flow  74 . 
     Even if the smoke, combustion hot air and the like flowing into the cyclone with a burner  73  passes through the ceramics filter provided in the combustion portion to remove a harmful substance therefrom, they may contain a given harmful substance or unburned material and the like which flows into the cyclone with a burner  73  without being completely removed by the ceramics filter. 
     As shown in FIG. 35, the smoke, the combustion hot air and the like sucked into the cyclone with a burner rotate above a cyclone chamber  73   c  of the cyclone with a burner  73  by flames of a burner  73   e  whilst a harmful substance, an unburned material and the like contained the smoke, the combustion hot air and the like in the cyclone chamber  73   c  are again burned. 
     The harmful substance, the unburned material and the like which have remained  73   g  from combustion fall into cabinets  73   f  attached at a center of the cyclone chamber  73   c  to be accommodated therein. The smoke, the combustion hot air and the like from which the harmful substance, the unburned material and the like contained therein have been removed are sucked into an air duct  73   d  to be discharged into the air. In addition, the harmful substance, the unburned material and the like which do not fall into the cabinets  73   f  further falls into a dust receiver  73   h.    
     As shown in FIG. 34, a blower  73   b  is provided to the lower portion of the cyclone with a burner  73 , and an air duct  73   i  attached to the blower  73   b  pierces the dust receiver  73   h , the end of the air duct  73   i  being inserted into the lower end of the air duct  73   d.    
     Since the clean smoke, combustion hot air and the like whose unburned material or harmful substance  2  has been accommodated in and fallen into the cabinet  73   f  and the dust receiver  73   h  are forcibly sent from the end of the air duct  73   i , the smoke, combustion hot air and the like from which the unburned material, the harmful substance and the like have been completely removed enter the air duct  73   d  with an air stream forcibly sent from the lower end of the air duct  73   d  and are discharged from the upper portion of the air duct  73   d  in the air. 
     In this manner, the smoke, combustion hot air and the like are forcibly sent from the air duct  73   i  to be emitted from the air duct  73   d , and a vacuum is hence formed in the cyclone chamber  73   c . As described above, since a vacuum is formed in the cyclone chamber  73   c , the smoke, the combustion hot air and the like in the combustion portion pass through the connection duct  73   a  from the combustion portion and flow in the cyclone chamber  73   c  so as to be sucked therein. 
     FIG. 36 is a front view of a vacuum pump which is attached to the incinerator with a ceramics filter according to the present invention and used for suction, and FIG. 37 is a plane view of a vacuum pump which is attached to the incinerator with a ceramics filter according to the present invention to be used. 
     For example, in the incinerator with a ceramics filter  7  shown in FIG. 8, by taking in fresh air by suction into the combustion chamber from an air intake  7   a  which is formed to the combustion portion by directly being attached to the upper portion of the combustion portion, an object to be incinerated can be completely burned up. 
     In the incinerator with a ceramics filter  9  shown in FIG. 10, fresh air can be sucked from an ash receiving chamber which is attached to a suction portion  9   f  of the combustion portion and has an ashpan  9   c  set therein so that an object to be incinerated  9   d  can be completely incinerated. 
     In the incinerator with a ceramics filter having a suction portion, a cyclone and the like as shown in FIGS. 12,  14 ,  16  and  18 , a vacuum pump  75  is attached to the suction portion or the cyclone to forcibly suck smoke, combustion hot air and the like in the combustion portion, and fresh air can be hence taken into the combustion portion from the lower portion of the combustion portion. 
     As shown in FIGS. 36 and 37, in the vacuum pump  75 , a moving vane is constituted by a pump main body  75   a , an opening/closing portion  75   b , a suction port  75   c  and an outlet  75   d . In the vacuum pump  75 , a rotating fan is rotated by drive of a motor. 
     FIG. 38 is a longitudinal cross-sectional view of a cyclone attached to a ceramics filter according to the present invention. This is a longitudinal cross-sectional view showing the cyclone  76  adopting the ejector suction system. As shown in FIG. 38, the cyclone  76  such as shown in FIG. 38 can be attached to the incinerator with a ceramics filter. The cyclone  76  has a structure such that an exhaust tube  76   d  is attached to a cyclone chamber  76   a  so as to protrude therefrom and a air duct  76   g  of a blower  76   c  is provided at the lower end of the exhaust tube, and the air burned by the combustion chamber is sucked into the cyclone chamber  76   a  from a suction port  76   b  of the cyclone  76 . Reference numeral  76   h  denotes a dust receiver for receiving an unburned material which falls in the cyclone chamber  76   a.    
     At this time, when the blower  76   c  is driven, since an air stream is forcibly sent from the end of the air duct  76   g  into the exhaust tube  76   d , the air in the cyclone chamber  76   a  is forcibly sucked into the exhaust tube  76   d . Therefore, the air pressure in the cyclone chamber  76   a  is reduced. In this manner, the air in the cyclone chamber  76   a  is sucked into the exhaust tube  76   d  (the ejector effect), and the smoke, the combustion hot air and the like generated in the combustion chamber and sucked from the suction port  76   b  pass through the exhaust tube  76   d  to be emitted into the air. The flow of air  76   e  is sucked from the suction port  76   b  to become a billowing air flow  76   f  around the exhaust tube  76   d . Thereafter, this air flow moves down to be sent from the air duct  76   g  from the lower end of the exhaust tube  76   d  and passes through the exhaust tube  76   d  to be discharged into the air together with an air stream. 
     FIG. 39 is a view showing another embodiment of the cyclone attached to the incinerator with a ceramics filter according to the present invention. In a cyclone  77  of this example, a blower  77   c  having an air duct  77   g  is provided to the upper portion of a cyclone chamber  77   a , and the end of an air duct  77   g  of the blower  77   c  is inserted into an exhaust tube  77   d . Any other structure is the same as that of the cyclone shown in FIG.  38 . 
     A catalytic filter utilizing a catalyst capable of removing a harmful substance such as dioxin may be provided instead of the ceramics filter attached to the incinerator with a ceramics filter according to the present invention. Specifically, the catalytic filter may substitute for the tabular ceramics filter  8  shown in FIG. 8, the tabular ceramics filter  8  shown in FIG. 10, the tabular ceramics filter  8  depicted in FIG. 12, the tabular ceramics filter  8  illustrated in FIG. 14, the tabular ceramics filter  8  shown in FIG. 16, the tabular ceramics filter  8  and the vertically set tabular ceramics filter  23  illustrated in FIG.  18 . 
     Here, as the catalyst used for the catalytic filter, there are a precious metal catalyst and an oxidation catalyst. As a catalytic component, it is known that the precious metal catalyst has the highest activity and is a most likely candidate for a catalyst which clarifies the exhaust gas in the incinerator. The precious metal catalyst is a catalyst obtained by titanium oxide is caused to adhere honeycomb-shaped or fibrous ceramic and platinum and the like is studded. It is reported that, among many precious metal catalysts, “the Pt/Ti102 catalyst” demonstrates the degradation effect of not less than 99 percent in the dioxin degradation test under the condition of SV=not more than 3000 h −1  and 250 to 300° C. 
     As to the oxidation catalyst used as a catalyst, the oxidation catalyst is obtained by dispersing as fine particles a catalyst component of approximately 100 A on the surface of a ceramic component having a high superficial area over 100 m 2 /g which is called a wash coat. It is applied on a structure called the honeycomb or foam and used as a catalyst. In this manner, the fine-grained catalyst with the high dispersibility has the surface with special solid state properties so that dioxin having an organic component can be degraded when the catalyst surface has a temperature lowered by 250° C. 
     A vibrator for vibrating the tabular ceramics filter  8  may be provided to the tabular ceramic filter  8  attached to the incinerator with a ceramics filter according to the present invention so that the ceramics filter  8  is vibrated. With such a structure, the ceramics filter can be prevented from being clogged. 
     POSSIBILITY OF INDUSTRIAL UTILIZATION 
     Since the present invention has the above-described structure, the following advantages can be obtained. 
     At first, using the ceramics filter can completely remove dioxin which is a harmful substance and also remove an unburned material. 
     At second, taking a usage after incineration or an incineration time into consideration, it is possible to select an appropriate process to perform disposal without producing harmful substances.