Patent EA-001329-B1 (EA)
Title: Apparatus for continuous purification of liquids, dewatering and drying of the separated solids
Inventor: BELCHEV BELCHO ALEXANDROV
IPC: C02F11/123
Filed: 1997-10-08
Abstract: 1. An apparatus for continuous purification of liquids, dewatering and drying of the separated non-filtering solids, comprising: a belt filter; and an elastic thermo-filter press; said belt filter includes a feed container, a filter sector and a thickening cone; said filter sector is located under the said feed container; and said filter sector is connected by its bottom portion to the said thickening cone; said thickening cone is connected through a fixed unloading pipe, a pipe, a combined vacuum pressure pump, and a feed pipe to said elastic thermo-filter press; said filter sector is linked through an outlet vacuum pipe, vacuum collector and main vacuum pipe to a main vacuum pump; said filter sector is linked at its other side through a reduction pipe, a pressure pipe, a second combined vacuum pressure pump, a second vacuum collector and a thermo-fluid detector to said elastic thermo-filter press. 2. A belt filter according to claim 1, wherein the filter sector comprises: a robust frame; a perforated absorption chamber part of which is built by a gas impenetrable sheathing, a porous chamber partition and is closed by a sealed cover; a basket filled with absorbing substance mounted into said perforated absorption chamber; a vacuum chamber bonded by said porous chamber partition and the said gas impenetrable sheathing; said vacuum chamber is connected through said outlet vacuum pipe, said vacuum collector and said main vacuum pipe to said main vacuum pump; a continuous drain belt with spacer rollers lying upon said perforated absorption chamber and said gas impenetrable sheathing; a belt screen located above said gas impenetrable sheathing linked to a flexible box at its one side; a perforated drive drum, located on the opposite side of said flexible box; said perforated drive drum is linked to a second motor reductor gear; and said perforated drive drum is connected to a fixed hollow shaft through secondary sealed bearings, and through sealed bearings said perforated drive drum is connected to said robust frame; a fixed screen with a horizontal aperture; and said fixed screen is mounted concentrically in the interior of said perforated drive drum; said fixed hollow shaft is equipped with a nozzle; and said fixed hollow shaft is linked by its one end in succession by means of said reduction pipe, said pressure pipe, said second combined vacuum pressure pump, said second vacuum collector and said thermo-fluid detector to said elastic thermo-filter press; and said fixed hollow shaft is blind at its second end; said flexible box includes a frame, solid sliding arches and two half-free sliding arches mounted one above the other, being connected in a flexible manner at their opposite ends to said flexible box; a jack mounted between said frame and said half-free arches, and a supporting component located under said half-free arches and connected to the upper portion of said jack; a continuous filter belt embracing in succession said continuous drain belt, said belt screen, said flexible box and said perforated driving drum; magnetic fibres interwoven in said continuous filter belt; rollers, secondary rollers and cleaners located above the external surface of said continuous filter belt; a magnetic detector fixed into said robust frame; a control panel connected to: said combined vacuum pressure pump, said second combined vacuum pressure pump; said jack; said magnetic detector; said second motor reductor gear; and a density detector mounted in said thickening cone. 3. An elastic thermo-filter press according to claim 1 comprising: a plurality of elastic filter plates having elastic hollow conduits; and a plurality of heating plates having heating membranes with feed inlets; said elastic filter plates and said heating plates connected alternately in succession; a self-propelled head connected by means of drive nuts with guide screws located at the one end of robust stems; said robust stems connected at their other end with pistons; said pistons lying in hydraulic cylinders, and said hydraulic cylinders fixed to a fixed head; said hydraulic cylinders coupled by hydraulic pipes to a hydraulic pump; said fixed head connected by fixing couplings to supporting beams; said self-propelled head, said elastic filter plates and said heating plates suspended by supporting rollers upon said supporting beams; said self-propelled head; said elastic filter plates; said heating plates and said fixed head interconnected by pivots; said elastic filter plates interconnected by flexible pipes; said elastic filter plates connected through said flexible pipes to a fluid pump; said elastic filter plates interconnected at their lower parts by flexible vacuum pipes: said flexible vacuum pipes connected to a thermo-fluid detector, said second vacuum collector, and to the second combined vacuum pressure pump. 4. An elastic thermo-filter press according to claim 1 and claim 3, wherein the said elastic filter plate comprises: an internal frame; a vacuum duct located in the lower part of said internal frame; said vacuum duct connected to said flexible vacuum pipe; said vacuum duct connected to a vacuum filter chamber of said elastic filter plate; said vacuum filter chamber limited by said internal frame and two porous partitions; a tube feed inlet located in said vacuum filter chamber and said porous partitions; said tube feed inlet connected to said combined vacuum pressure pump through the feed pipe; a fluid duct located in said internal frame; said fluid duct connected to said flexible pipes; said fluid duct connected to elastic hollow conduits; said internal frame encompassed by an elastic frame; said elastic hollow conduits formed between the said innternal frame and the said elastic frame; said elastic hollow conduit located along the two parallel and vertical sides of said internal frame; said control panel connected to: said motor reductor gear; said heating membranes, said fluid pump; said hydraulic pump, said thermo-fluid detector and a control valve.