Filtering mechanism for ultrahigh-pressure tailing filter press

Abstract

The utility model relates to a filtering mechanism for an ultrahigh-pressure tailing filter press, and belongs to the technical field of filtering. The filtering mechanism for the ultrahigh-pressure tailing filter press comprises a material plate and a water film plate, material film filter cloth, water film filter cloth, a polyester filter screen and a leather glue layer are sequentially arranged between the material plate and the water film plate, a plurality of drainage holes are formed in the convex edge of the bottom of the water film plate, and silica gel pads are fixed to the positions, corresponding to bosses, of the material film filter cloth, the water film filter cloth and the polyester filter screen. According to the filtering mechanism for the ultrahigh-pressure tailing filter press, the problems of short service life and large loss of the material membrane filter cloth, the water membrane filter cloth and the polyester filter screen are solved, and the use cost of the material membrane filter cloth, the water membrane filter cloth and the polyester filter screen is saved. Meanwhile, the damage amount of the filter cloth is reduced, so that the labor and time for replacing the filter cloth are saved, and the potential safety hazard possibly caused by replacing the filter cloth by personnel is also reduced.

Description

Technical Field

[0001] The utility model relates to a filtering mechanism for an ultra-high pressure tail coal filter press, belonging to the technical field of filtering. Background Art

[0002] During the production process of coal preparation plants, a large amount of coal slime water is generated. The coal slime water needs to be filtered to separate water and coal slime. The separated water can be recycled, and the coal slime forms a solid mud cake for standby after filtration. During the process of filtering coal slime water and pressing coal slime products with the STC-2000 type ultra-high pressure filter press produced by Hangzhou Anyong Company, due to the too high equipment pressure, various filter cloths have service lives and belong to easily consumable materials. The equipment can operate at a pressing pressure of 10 MPa. Under such a large filtering pressure, how to save the usage amount of various filter cloths and reduce the too fast loss of filter cloths is an urgent problem to be solved.

[0003] The damaged points on multiple replaced filter cloths were measured and analyzed, and it was found that most of the damaged points on the filter cloths corresponded to the bosses on the material plates and water film plates. Therefore, to solve the above technical problems and extend the service lives of the material film filter cloth, water film filter cloth, and polyester filter mesh, silica gel pads are fixed at the positions corresponding to the bosses on the material film filter cloth, water film filter cloth, and polyester filter mesh. The silica gel pads can play a role in buffering and reducing the pressure on the vulnerable points of the material film filter cloth, water film filter cloth, and polyester filter mesh. It achieves a strengthening effect and does not affect its sealing performance and the normal operation of the equipment. Through the transformation of adding silica gel pads, the service life of each set of material film filter cloth can be increased by about 7 days, the service life of each set of water film filter cloth can be increased by about 10 days, and the service life of each polyester filter mesh can be increased by about 15 days. The problems of short service life and large loss of the material film filter cloth, water film filter cloth, and polyester filter mesh are solved, and the usage costs of the material film filter cloth, water film filter cloth, and polyester filter mesh are saved. At the same time, due to the reduction of the damaged amount of the filter cloth, the labor and time for replacing the filter cloth are saved, and the potential safety hazards caused by personnel replacing the filter cloth are also reduced. Content of the Utility Model

[0004] In order to overcome the defects existing in the background technology, the technical solution adopted by the present utility model to solve its technical problems is as follows: A filtering mechanism for an ultra-high pressure tail coal filter press, comprising a material plate and a water film plate. An inlet pipe is provided on the side surface of the material plate. Inlet holes are provided on the front and rear side surfaces of the material plate corresponding to the inlet pipe, and the inlet pipe is communicated with the inlet holes. Annular filtrate water troughs are provided on the front and rear side surfaces of the material plate. A filtrate water pipe provided on the side surface of the material plate is communicated with the filtrate water troughs. Stainless steel filter meshes are fixed on the front and rear side surfaces of the material plate, and the stainless steel filter meshes can cover the annular filtrate water troughs. Arc-shaped notches are provided on the stainless steel filter meshes corresponding to the inlet holes, and boss perforations are provided on the stainless steel filter meshes corresponding to the bosses. A material film filter cloth, a water film filter cloth, a polyester filter mesh and a leather glue layer are sequentially provided between the material plate and the water film plate. A plurality of bosses are correspondingly provided on the front and rear side surfaces of the material plate and the water film plate relatively. Flanges are provided around the front and rear side surfaces of the material plate and the water film plate. A plurality of drain holes are provided on the flange at the bottom of the water film plate. Silicone pads are fixed on the material film filter cloth, the water film filter cloth and the polyester filter mesh corresponding to the boss 7.

[0005] Preferably, the area of the silicone pad is larger than the area of the boss.

[0006] Preferably, the silicone pad is sewn and fixed on the material film filter cloth, the water film filter cloth and the polyester filter mesh.

[0007] Preferably, the silicone pad is pasted and fixed on the material film filter cloth, the water film filter cloth and the polyester filter mesh.

[0008] The working temperature range of the silicone pad is -60°C to 260°C.

[0009] The present utility model designs a filtering mechanism for an ultra-high pressure tail coal filter press. Silicone pads are fixed at the positions corresponding to the bosses on the material film filter cloth, the water film filter cloth and the polyester filter mesh. The silicone pads can play a role in buffering and reducing the pressure on the vulnerable points of the material film filter cloth, the water film filter cloth and the polyester filter mesh, achieving a reinforcement effect and not affecting its sealing performance and the normal operation of the equipment. Through the transformation of adding silicone pads, the service life of each set of material film filter cloth can be increased by about 7 days, the service life of each set of water film filter cloth can be increased by about 10 days, and the service life of each polyester filter mesh can be increased by about 15 days. It solves the problems of short service life and large loss of the material film filter cloth, the water film filter cloth and the polyester filter mesh, saves the use cost of the material film filter cloth, the water film filter cloth and the polyester filter mesh. At the same time, due to the reduction of the filter cloth breakage amount, the labor and time for replacing the filter cloth are saved, and the potential safety hazards caused by personnel replacing the filter cloth are also reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0011] Figure 1Structural schematic of a filtering mechanism for an ultra-high pressure tail coal filter press of the present utility model Figure 1 ;

[0012] Figure 2 Structural schematic of a filtering mechanism for an ultra-high pressure tail coal filter press of the present utility model Figure 2 ;

[0013] Wherein: 1. Material plate; 2. Material film filter cloth; 3. Water film filter cloth; 4. Polyester filter screen; 5. Leather glue layer; 6. Water film plate; 7. Boss; 8. Feed pipe; 9. Feed hole; 10. Silicone gasket; 11. Flange; 12. Drain hole; 13. Filtrate water tank; 14. Filtrate water pipe; 15. Stainless steel filter net; 16. Boss perforation. Specific embodiments

[0014] Now, the present utility model will be further described in detail with reference to the accompanying drawings. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0015] Specific embodiment one, please refer to Figure 1-2 , a filtering mechanism for an ultra-high pressure tail coal filter press, comprising a material plate 1 and a water film plate 6. An inlet pipe 8 is provided on the side surface of the material plate 1. Feed holes 9 are provided on the front and rear side surfaces of the material plate 1 corresponding to the feed pipe 8. The feed pipe 8 is communicated with the feed holes 9. Annular filtrate water tanks 13 are provided on the front and rear side surfaces of the material plate 1. A filtrate water pipe 14 provided on the side surface of the material plate 1 is communicated with the filtrate water tanks 13. A stainless steel filter net 15 is fixed on the front and rear side surfaces of the material plate 1. The stainless steel filter net 15 can cover the annular filtrate water tanks 13. An arc-shaped notch is provided on the stainless steel filter net 15 corresponding to the feed holes 9. A boss perforation 16 is provided on the stainless steel filter net 15 corresponding to the boss 7. A material film filter cloth 2, a water film filter cloth 3, a polyester filter screen 4 and a leather glue layer 5 are further sequentially provided between the material plate 1 and the water film plate 6. A plurality of bosses 7 are correspondingly provided on the inner sides of the front and rear side surfaces of the material plate 1 and the water film plate 6. Flanges 11 are provided around the front and rear side surfaces of the material plate 1 and the water film plate 6. A plurality of drain holes 12 are provided on the flange 11 at the bottom of the water film plate 6. Silicone gaskets 10 are fixed on the material film filter cloth 2, the water film filter cloth 3 and the polyester filter screen 4 corresponding to the bosses 7. The area of the silicone gasket 10 is larger than the area of the boss 7. The silicone gasket 10 is sewn and fixed on the material film filter cloth 2, the water film filter cloth 3 and the polyester filter screen 4. The working temperature range of the silicone gasket 10 is -60°C to 260°C.

[0016] Specific embodiment two, please refer to Figure 1-2, A filtering mechanism for an ultra-high pressure tail coal filter press, comprising a material plate 1 and a water film plate 6. An inlet pipe 8 is provided on the side surface of the material plate 1. Inlet holes 9 are provided on the front and rear side surfaces of the material plate 1 corresponding to the inlet pipe 8. The inlet pipe 8 is communicated with the inlet holes 9. Annular filtrate water troughs 13 are provided on the front and rear side surfaces of the material plate 1. A filtrate water pipe 14 provided on the side surface of the material plate 1 is communicated with the filtrate water troughs 13. Stainless steel filter meshes 15 are fixed on the front and rear side surfaces of the material plate 1. The stainless steel filter meshes 15 can cover the annular filtrate water troughs 13. Arc-shaped notches are provided on the stainless steel filter meshes 15 corresponding to the inlet holes 9. Boss perforations 16 are provided on the stainless steel filter meshes 15 corresponding to bosses 7. A material film filter cloth 2, a water film filter cloth 3, a polyester filter mesh 4 and a leather glue layer 5 are sequentially arranged between the material plate 1 and the water film plate 6. A plurality of bosses 7 are correspondingly provided on the inner sides of the front and rear side surfaces of the material plate 1 and the water film plate 6. Flanges 11 are provided around the front and rear side surfaces of the material plate 1 and the water film plate 6. A plurality of drain holes 12 are provided on the flange 11 at the bottom of the water film plate 6. Silicone pads 10 are fixed on the material film filter cloth 2, the water film filter cloth 3 and the polyester filter mesh 4 corresponding to the bosses 7. The area of the silicone pads 10 is larger than the area of the bosses 7. The silicone pads 10 are adhesively fixed on the material film filter cloth 2, the water film filter cloth 3 and the polyester filter mesh 4. The working temperature range of the silicone pads 10 is -60°C to 260°C.

[0017] The utility model designs a filtering mechanism for an ultra-high pressure tail coal filter press. Silicone pads are fixed at the positions corresponding to the bosses on the material film filter cloth, the water film filter cloth and the polyester filter mesh. The silicone pads can play a role in buffering and reducing the pressure on the vulnerable points of the material film filter cloth, the water film filter cloth and the polyester filter mesh. It achieves a reinforcement effect and does not affect its sealing performance and the normal operation of the equipment. Through the transformation of adding silicone pads, the service life of each set of material film filter cloth can be increased by about 7 days, the service life of each set of water film filter cloth can be increased by about 10 days, and the service life of each polyester filter mesh can be increased by about 15 days. It solves the problems of short service life and large loss of the material film filter cloth, the water film filter cloth and the polyester filter mesh, and saves the use cost of the material film filter cloth, the water film filter cloth and the polyester filter mesh. At the same time, due to the reduction of the amount of filter cloth damage, the labor and time for replacing the filter cloth are saved, and the potential safety hazards caused by personnel replacing the filter cloth are also reduced.

[0018] Obviously, the above embodiments are merely examples given for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the creative utility model.

Claims

1. A filtering mechanism for an ultra-high pressure tailings filter press, comprising a material plate (1) and a water film plate (6), characterized in that: A feed pipe (8) is provided on the side surface of the material plate (1). Feed holes (9) are provided on the front and rear side surfaces of the material plate (1) corresponding to the feed pipe (8). The feed pipe (8) is communicated with the feed holes (9). Annular filtrate water troughs (13) are provided on the front and rear side surfaces of the material plate (1). A filtrate water pipe (14) provided on the side surface of the material plate (1) is communicated with the filtrate water trough (13). Stainless steel filter meshes (15) are fixed on the front and rear side surfaces of the material plate (1). The stainless steel filter meshes (15) can cover the annular filtrate water troughs (13). Arc-shaped notches are provided on the stainless steel filter meshes (15) corresponding to the feed holes (9). Boss perforations (16) are provided on the stainless steel filter meshes (15) corresponding to the bosses (7). A material film filter cloth (2), a water film filter cloth (3), a polyester filter mesh (4) and a leather glue layer (5) are sequentially arranged between the material plate (1) and the water film plate (6). A plurality of bosses (7) are correspondingly arranged on the front and rear side surfaces of the material plate (1) and the water film plate (6). Flanges (11) are provided around the front and rear side surfaces of the material plate (1) and the water film plate (6). A plurality of drain holes (12) are provided on the flange (11) at the bottom of the water film plate (6). Silicone pads (10) are fixed on the material film filter cloth (2), the water film filter cloth (3) and the polyester filter mesh (4) corresponding to the bosses (7).

2. The filtering mechanism for an ultra-high pressure tailings filter press according to claim 1, characterized in that: The area of the silicone pad (10) is larger than the area of the boss (7).

3. The filtering mechanism for an ultra-high pressure tailings filter press according to claim 1, characterized in that: The silicone pad (10) is sewn and fixed on the material film filter cloth (2), the water film filter cloth (3) and the polyester filter mesh (4).

4. The filtering mechanism for an ultra-high pressure tailings filter press according to claim 1, wherein: The silicone pad (10) is adhesively fixed on the material film filter cloth (2), the water film filter cloth (3) and the polyester filter mesh (4).

5. The filtering mechanism for an ultra-high pressure tailings filter press according to claim 1, wherein: The working temperature range of the silicone pad (10) is -60°C to 260°C.

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