Abstract:
A waste tire incinerating and post-treatment system in which waste tires are continuously and efficiently burned. The system includes a waste tire reservoir tank, a hoist, a conveyor system, a tire-size sensing system, an incinerating part, a waste oil purifying part, a waste gas purifying part, and an incineration residual material treating part. Waste tires are accumulated in a waste tire reservoir tank before their incineration. A hoist transfers the waste tires from the waste tank reservoir to a conveyor system. The conveyor system conveys waste tires to an incinerating part. A sensing system senses the size of individual tires on the conveyor system to create tire size data. This size data is used to control and optimize the rate of feeding the waste tires into the incinerating furnace. The incinerating part further includes a material removal mechanism for removing incineration residual materials. The removed incineration residual materials are further treated in an incineration residual material treating part wherein the materials are compressed to squeeze the waste oil therefrom and to obtain compressed incineration residual material blocks, which may be transferred for further processing by the hoist. A waste oil purifying part purifies the waste oil after incineration of the waste tires. A waste gas purifying part purifies the waste gas generated during the incineration of tires. The waste gas purifying part condenses the waste gas into a waste oil. This waste oil captures contaminants contained in the waste gas by spraying this oil through a body of waste gas.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a waste tire incinerating system in which waste tires can be continuously burned. More specifically, the present invention relates to a waste tire incinerating and post-treating system in which waste tires can be continuously and efficiently burned, and the discharge gas is utilized as an industrial energy in an efficient manner. 
     2. Description of the Prior Art 
     Generally, waste tires cause environmental contaminations, and therefore, waste tires are incinerated by using an incinerating apparatus. 
     Among the waste tire incinerating apparatuses which have been invented so far, there are Korean Patent Publication No. 1995-1465 and 1995-7416 of the present applicant. Further, an apparatus for utilizing the discharge gas of the burnt tires as an energy is disclosed in Korean Utilit Model No. 1995-2884. 
     However, in these apparatuses, the disposal of the residual materials is not automatic, or only partly automatic. 
     Further, the overall structure of the apparatus is complicated, and the installation area becomes large, while the facility cost is high. 
     Further, waste tires cannot be fed in exact amounts continuously into the incinerating apparatus, and therefore, an exact continuous incineration cannot be realized. 
     Particularly, waste tires have to be fed in exact amounts, if an efficient incineration is to be realized. However, the sizes of waste tires are various, and therefore, the feeding amount of waste tires into the incinerating apparatus cannot be realized with the result that an efficient incineration cannot be achieved. 
     Further, in a waste tire incinerating apparatus, the residual materials which remain after the incineration have to be completely removed, if a continuous incineration is to be carried out. 
     However, in the prior art (Korean Patent Publication No. 1995-7416), the residual materials drop down, and then, the dropped residual materials are collected, with the result that the residual materials are handled in an imperfect manner. 
     Specifically, within the tires, there are steel wires or steel wire nets for their long durability. These steel wires are not burned, and therefore, they remain after the incineration. 
     That is, the rubber portions of the waste tires are completely burned, and therefore, the ashes are dropped down after the incineration. However, the steel wires remain mounted on the supporting bars, and therefore, they do not drop down. 
     Consequently, the residual steel wires have to be pulled sideward to remove them. 
     However, during the removal of the residual steel wires in this manner, the incinerating operation has to be halted. As a result, a continuous incineration cannot be realized, the incineration cannot be made automatic, and the operation is inefficient. 
     Further, in addition to the problem of the residual materials, the post treatment of purifying the discharge gas so as to use it as a fuel cannot be carried out in a perfect manner. Therefore, the combustion efficiency of the discharge gas is not high, and the environment is polluted. 
     SUMMARY OF THE INVENTION 
     The present invention is intended to overcome the above described disadvantages of the conventional techniques. 
     Therefore it is an object of the present invention to provide a waste tire incinerating and post-treating system, in which the incinerating system is automatic, the facility cost is lowered, a continuous incineration is realized, and the waste gas purifying efficiency is improved, thereby maximizing the recycling efficiency for the waste gas. 
     In achieving the above object, the present invention is characterized in that a hoist carrying apparatus is utilized so as to improve the waste tire automatic feeding and the post treatment. 
     Further, the sizes of the waste tires are sensed when feeding the waste tires into a thermally decomposing furnace, thereby feeding proper amounts of the waste tires into the thermally decomposing furnace, realizing an efficient incineration, and making it possible to continuously handle the residual materials in a continuous automatic manner. 
     Further, a purifying apparatus purifies the discharge gas to improve the purity of the discharge gas, thereby making it possible to realize a perfect combustion of the discharge gas time. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The above object and other advantages of the present invention will become more apparent by describing in detail the preferred embodiment of the present invention with reference to the attached drawings in which: 
     FIG. 1 illustrates the overall system according to the present invention; 
     FIG. 2 is an elevational view showing the waste tire feeding device according to the present invention; 
     FIG.  2   a  illustrates the water discharge pipe of the waste tire feeding device according to the present invention; 
     FIG. 3 is a plan view of the waste tire feeding device of FIG. 2; 
     FIG. 4 is an elevational view of the thermal decomposing furnace of the incinerating part according to the present invention; 
     FIG. 5 is an elevational view of the feeding pipe of the thermal decomposing furnace according to the present invention; 
     FIG. 6 is a sectional view taken along a line A-A′ of FIG. 4; 
     FIG. 7 is a sectional view taken along a line B-B′ of FIG. 6; 
     FIG. 8 is a sectional view taken along a line C-C′ of FIG. 6; 
     FIG. 9 is a sectional view taken along a line C-C′ of FIG. 8; 
     FIG. 10 is a detailed illustration of the portion E of FIG. 9; 
     FIG. 11 is a longitudinal sectional view of the incineration residual material disposing part according to the present invention; 
     FIG. 12 is a left hand sectional view of the incineration residual material disposing part of FIG. 11; 
     FIG. 13 is a sectional view taken along a line F-F′ of FIG. 12; 
     FIG. 14 is a longitudinal sectional view of the first oil filter according to the present invention; 
     FIG. 15 is a longitudinal sectional view of the oil cooler according to the present invention; 
     FIG. 16 is a sectional view taken along a line G-G′ of FIG. 15; 
     FIG. 17 is a longitudinal sectional view of the oil cyclone according to the present invention; 
     FIG. 18 is a longitudinal sectional view of the second oil filter according to the present invention; 
     FIG. 19 is a sectional view taken along a line H-H′ of FIG. 18; and 
     FIG. 20 is an exemplary view showing the installed state of the system according to the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     FIG. 1 illustrates the overall system according to the present invention. 
     Referring to FIG. 1, the system according to the present invention includes: a waste tire supplying part  100  for supplying collected waste tires T to incinerate them; an incinerating part  200  for thermally decomposing and incinerating the waste tires T; and an incineration residual material treating part  300  for carrying out a post treatment on the incineration residual materials P such as carbon powders and steel wires. 
     Further, the system includes: a waste oil purifying part  400  for purifying and storing a waste oil after obtaining it as a byproduct of the waste tire incineration; and a waste gas purifying part  500  for purifying a waste gas after obtaining it as a byproduct of the waste tire incineration. 
     Referring to FIG. 1, the waste tire supplying part  100  includes a waste tire reservoir tank  110  on which a hoist device  120  is installed. The hoist device  120  is a carrying device which is well known, and therefore, a description on it will be skipped. 
     Thus when a waste tire collecting truck C 1  arrives, a tongs  121  of he hoist device  120  picks up the waste tire from the collecting truck C 1 , and drops the waste tires into the reservoir tank  110 . Thus the waste tires T receive a waiting status. In this manner, the hoist device  120  is operated until all of the waste tires T are moved to the waste tire reservoir tank  110 . 
     Then the hoist device  120  transfers the waste tires one by one from the waste tire reservoir tank  110  to a waste tire supplying and sensing device  130 , and then the waste tires are dropped into a guide hopper  131 . Under this condition, the guide hopper  131  aligns the waste tires T. 
     Referring to FIGS. 2 and 3, the aligned waste tires T are supplied mounted on a chain conveyor  132 . The chain conveyor  132  is driven by a motor, and the power relation and the structure of the auxiliary structures such as a chain gear are well known, and therefore, will be described, in brief detail. 
     That is, tire guide members  133  are equidistantly installed on the chain conveyor  132 . Therefore, each of the waste tires is dropped in-between the tire guide members  133  to be confined between the tire guide members, and thus, each of the waste tires is slowly conveyed by being mounted on the chain conveyor  132 . 
     During the conveying of the waste tires T, their sizes are sensed. That is, their sizes are sensed by a large tire sensor  134 , a medium tire sensor  135  and a small tire sensor  136  which are installed on the conveying path. 
     That is, the large, medium and small sensors  134 - 136  sense the sizes of the waste tires during their conveying, and the sensed data are transmitted to a central processing part (not illustrated). The central processing part controllably feeds the waste tires into the incinerating part  200  based on the received data. 
     For example, the number of the waste tires T which are incinerated and handled by the incinerating part  200  per unit of time has been already known by an experiment. Based on this experimental data, the number of the waste tires T to be fed per unit of time is decided. 
     Further, if the sizes of the feeding waste tires T are sensed, then their weight and volume can be known, because they are standardized. Then the data are transmitted to the central processing part. 
     Therefore, in accordance with the incinerating rate of the incinerating part  200 , proper amounts of the waste tires T can be controllably fed in a continuous manner. 
     Thus the waste tire supplying and sensing device  130  makes it possible to feed proper amounts of the waste tires T, and therefore, a continuous automatic system can be built. 
     Before feeding the waste tires T into a feeding pipe  220 , a possible presence of water within the waste tires T has to be removed. If water is present there, the incineration efficiency is markedly decreased, and therefore, the water is removed beforehand. 
     Referring to FIGS.  2   a  and  3 , a water discharge pump  137  sucks the water from within the waste tire into a water sucking pipe  138  to discharge the water. The water sucking pipe  138  is movable up and down and to front and rear by a cylinder  139 . In this manner, the water sucking pipe  138  is inserted into the interior of the waste tires to suck the water. 
     FIG. 4 is an elevational view of the incinerating part  200  according to the present invention. The incinerating part  200  includes a thermally decomposing furnace  210 . A feeding pipe  220  which is installed on the upper portion of the thermally decomposing furnace  210  is provided with a first blocking gate  221  and a second blocking gate  222  at a certain interval. 
     Therefore, a waste tire waiting space  223  is formed between the first and second blocking gates  221  and  222 . The first and second blocking gates  221  and  222  are movable to front and rear by pneumatic cylinders  224 . Pneumatic units for driving the pneumatic cylinders  224  are well known, and therefore, descriptions on the pneumatic cylinders will be skipped. 
     Referring to FIG. 5, when feeding the waste tires, first the first blocking gate  221  is opened, so that one single waste tire T can be fed through the feeding pipe  220 . The waste tire T thus having passed the first blocking gate  221  awaits mounting on the second blocking gate  222 . 
     Then the first blocking gate  221  is closed, and then the second blocking gate  222  is opened. 
     Then the waste tire T is dropped into the interior of the thermally decomposing furnace  210 , and then, the second blocking gate  222  is closed, thereby closing the feeding pipe  220 . 
     During the feeding of the waste tire T when the second blocking gate  222  is open, the waste gas is discharged momentarily from the thermally decomposing furnace  210  through the feeding pipe  220  to the outside. Thus if the waste gas is discharged each time when a waste tire is fed, then air pollution would be released. 
     However, the first blocking gate  221  is in a closed state, and therefore, the waste gas is confined within the space between the first and second blocking gates  221  and  222 . 
     Referring to FIG. 1 again, the waste gas which has been confined within the waste tire waiting space  223  is fed back into the thermally decomposing furnace  210  by a blower  240 . 
     Therefore, when the waste tires T are fed through the feeding pipe  220 , any leakage of the waste gas can be completely prevented, thereby protecting the environment from being polluted. 
     Referring to FIG. 4, the thermally decomposing furnace  210  includes a main body  211 , a lid  212  and a tapered residual material dropping part  213  to seal off the furnace  210 . 
     On the boundary between the main body  211  and the tapered residual material dropping part  213 , there is a waste tire supporting part  250  to support the waste tires T after feeding of them. 
     Referring to FIG. 6, the fixed frame of the waste tire supporting part  250  consists of a plurality of air supplying tubes  260  which are equidistantly fixedly arranged. 
     Further, the plurality of the air supplying tubes  260  are connected to a main air supplying pipe  270 . 
     Referring to FIG. 7, each of the air supplying tubes  260  has a plurality of air discharge tubes  262 , each of the air discharge tubes  262  being covered with a cover  261 . Each of the air discharge tubes  262  has air discharge holes  263  on the side wall thereof. Thus the air is supplied through the side holes, and therefore, any clogging of the holes can be prevented. 
     Referring to FIG. 8, between the air supplying tubes  260 , there are installed recycling chains  281  which run by being driven by chain gears  280 . Further, as shown in FIG. 10, a plurality of angled recycling members  282  upstand equidistantly on each of the recycling chains  281 . 
     Referring to FIG. 9, the plurality of the recycling chains  281  run by being driven by a motor  283 . Therefore, the recycling members  282  move horizontally. In this manner, the recycling members  282  push the incineration residual materials (the combustion debris) P such as carbon ashes and steel wires to one side, and therefore, the incineration residual materials are dropped down into the residual material dropping part  213 . 
     FIGS. 11 to  13  illustrate the incineration residual material treating part  300 . Referring to FIG. 11, the incineration residual materials P are dropped from the residual material dropping part  213  to a residual material compressing part  310 . Under this condition, an adjustment may be carried out by means of a remote controlled damper or the like, so that a proper amount of the incineration residual materials can be dropped at a time. 
     The incineration residual materials P which have been dropped into the residual material compressing part  310  are pushed by a first compressing plate  321  which is driven by a first cylinder  320 . Then the incineration residual materials P which have been pushed are compressed by a second compressing plate  331  which is driven by a second cylinder  330 . 
     Then as shown in FIG. 12, the incineration residual materials P are compressed by a third compressing plate  341  which is driven by a third cylinder  340 . Under this condition, a residual material outlet  350  is in a closed state by being closed by a door  361  which is driven by an opening/closing cylinder  360 . 
     When the incineration residual materials P are compressed by the third compressing plate  340 , the oil which is contained in the residual materials is squeezed and flows down. 
     Then as shown in FIG. 13, the squeezed waste oil is discharged through oil discharge holes  371  of oil guides  370 . In this manner, the waste oil drops into a waste oil hopper  380  of FIG. 12 to be guided to a waste oil treating part  400 . 
     Meanwhile, when the waste oil is completely squeezed, the incineration residual materials P becomes a incineration residual material block preferably parallelopiped Pa. This incineration residual material block Pa is pushed by the third compressing plate  341  of the third cylinder  340  upon opening of a door  361  and is discharged to the outside. 
     As shown in FIG. 1, the discharged incineration residual materials Pa are conveyed by a conveyor  390  or the like to be stored in a vessel  391 . Then the incineration residual materials are picked up by a tongs  121  of a hoist device  120  to be loaded on a collecting truck C 2  so as to be transported and disposed of. 
     Referring to FIG. 1, when the waste tires are incinerated in the thermally decomposing furnace  210 , waste oil and waste tires are burned, while carbon powders and steel wires remain unburnt. However, an unburnt waste oil flows down along the inner wall of the thermally decomposing furnace  210 , and then the unburnt oil is collected into a waste oil tank  290 . 
     The waste oil of the waste oil tank  290  is carried to the waste oil purifying part  400  to be purified into a combustible oil. The waste oil purifying part  400  includes an oil precipitator  410 , an oil centrifugal separator  420  and an oil tank  430 . These components have the well known structures, and therefore, will not be described in detail. 
     Thus the waste oil passes through the oil precipitator  410  and the oil centrifugal separator  420 . In this manner, foreign materials such as floating materials or sediments are removed, and then, the purified oil is stored in the oil tank  430 . Then the oil of the oil tank  430  is sent to an emulsifying device  440  to be emulsified. 
     In the emulsifying device  440 , a proper amount of water is added to emulsify the oil, and to decompose the sludge within the oil. Then this oil is supplied to an oil burner  610  by precisely controlling the pre-heating temperature, so that an aqueous gas reaction and a complete combustion would be carried out. In this manner, the air polluting materials are made to be burned to a high degree, and a fuel saving is achieved. The emulsified waste oil is mostly recycled to an oil burner  610  of a boiler  600  or the like. 
     Further as shown in FIG. 1, the recycling waste oil may be supplied to an initial burner  215  of the body part  211  of the thermally decomposing furnace  210 , so that initial flames can be provided to the waste tires to be incinerated. 
     When the waste tires begin to be burned by receiving flames from the initial burner  215 , the waste tires will continue to be burned by the flames. Therefore the recycling waste oil is no longer required. 
     Meanwhile, the waste gas which is discharged through the gas discharge hole  214  of the thermally decomposing furnace  210  contains foreign materials such as dust. Therefore, the waste gas is sent to the waste gas purifying part  500  to be purified there. 
     The waste gas purifying part  500  includes a first oil filter  510 , an oil cooler  520 , an oil cyclone  530  and a second oil filter  540 . FIGS. 14 to  19  illustrate this waste gas purifying part  500 . 
     Referring to FIG. 14, the first oil filter  510  includes a plurality of filter members  512  which are equidistantly disposed within a tank  511  and on each of which small holes are formed. Therefore, when the waste oil passes through the filter members  512 , the foreign materials and the waste oil contained in the waste gas are agglomerated on the walls of the filter members to flow down. 
     Then the waste oil is discharged through an oil discharge hole  513  to the waste oil purifying part  400 . Then the waste oil is spouted through an oil nozzle  560   a  of the upper portion of the tank  511  by a high pressure pump  550 . Thus, the waste oil is spouted into the waste gas, and therefore, the dust particles of the waste gas are captured by the spouted oil drops, with the result that the oil drops with the dust particles drop down. As a result, the spouted waste oil removes the dust particles from the waste gas, and therefore, the waste gas purifying efficiency is further improved. 
     Now the waste gas purifying steps will be described in detail referring to FIGS. 15 and 16. 
     In the oil cooler  520 , a pair of supporting plate members  522  are disposed on both sides of the inner wall of a tank  521 . Further, between the supporting plate members  522 , there are installed a plurality of gas tubes  523  for passing the waste gas. The plurality of the gas tubes  523  pass through a water chamber  524 . A cooling water W is supplied through a water inlet  525  into the water chamber  524 , and is drained out of the water chamber  524  through a water outlet  526 . 
     The reservoir of the cooling water is a water tank  528 , and the drained cooling water is circulated back to the water tank  528 . Reference code  529  indicates an auxiliary water tank from which the cooling water is supplied to the water tank  528 . 
     Therefore, the waste gas is cooled by the cooling water W during passage through the gas tubes  523 . Further, the waste oil is separated from the waste gas. Further, the separated waste oil is drained through an oil outlet  527  into the waste oil purifying part  400 . Then the separated waste oil is spouted through an oil nozzle  560 b of the tank  521  by a high pressure pump  550 , so that the spouted oil drops can capture the dusts contained in the waste gas, thereby further improving the waste gas purifying efficiency. 
     A next oil purifying step is done by an oil cyclone  530  as shown in FIG.  17 . In the oil cyclone  530 , the waste gas which is incoming through an inlet  532  of a tank  531  is introduced into a helical guide path  533 . Within the helical guide path  533 , the waste gas forms a helical flow by a propeller  535  which is driven by a motor  534 . 
     Therefore, the waste oil contained in the helical flow of the waste gas collides with the propeller blades, and therefore, the collided waste oil is separated from the waste gas. Thus the separated waste oil is discharged through a waste oil discharge hole  536  to the waste oil purifying part  400 . 
     Further, the separated waste oil is spouted through an oil nozzle  560   c  of the tank  531  by being driven by a high pressure pump  550 , so that the spouted oil drops can capture the dusts contained in the waste gas, thereby further improving the waste gas purifying efficiency. 
     In this oil cyclone  530 , two or more propellers  535  are installed, thereby improving the treating speed and efficiency. 
     The waste gas which has been discharged from this oil cyclone  530  passes through tiny holes  543  of a filter member  542  which is installed within a tank  541  of a second oil filter  540  of FIGS. 18 and 19, so as for the waste gas to be purified in the same principle as that of the first oil filter  520 . 
     The waste oil thus separated is discharged through an oil discharge hole  544  to the waste oil purifying part  400 . 
     Further again, the separated waste oil is spouted through an oil nozzle  560   d  of the tank  541  by the power of the high pressure pump  550 , so that the spouted oil drops can capture the dusts contained in the waste gas, thereby further improving the waste gas purifying efficiency. 
     The waste gas, from which the harmful components such as dusts has been removed is supplied to an oil burner  610  of a burning device  600  to be burned there. At the same time, the waste oil is supplied to the oil burner  610 , so that the waste gas and the waste oil can be mixedly burned. 
     As shown in FIG. 1, the purified waste gas is spouted through a nozzle  620  of the burning device  600 , thereby more intensifying the flames. 
     Therefore, if the waste tire incinerating and post-treating system and the burning device such as a boiler are installed together, then the incineration and the burning of the waste gas and the waste oil can be carried out at one place, thereby improving cost effectiveness. 
     Thus as shown in FIG. 20, the required facilities are installed together, thereby minimizing the installation area. Particularly, the hoist device  120  unloads the waste tires from the collecting truck C 1 , and loads the incineration residual materials (the combustion debris) to the collecting truck C 2 , thereby making the total system automatic. 
     According to the present invention as described above, the waste tire incinerating system is made totally automatic, and the facility cost and the installation area are reduced. Further, a continuous incineration is realized, and the waste gas purifying efficiency is improved, thereby maximizing the use of the energy.