Improved high-permeability filter pressing device

Abstract

The utility model aims to provide the improved high-permeability filter pressing device which is simple in structure, convenient to use and capable of improving the filtrate outflow efficiency. The device comprises a mounting rack, a hydraulic output assembly arranged at one end of the mounting rack, an extrusion plate arranged at the movable end of the hydraulic output assembly, a plurality of filter pressing plate groups in sliding fit with the mounting rack, and a recovery vehicle arranged at the bottom of the mounting rack, an extending block which is in sliding fit with the mounting frame is formed on the extrusion plate, a filter block for filtering materials is arranged at the bottom of the filter pressing plate group, and a filter layer, a buffer layer and a supporting layer which are gradually increased in penetrating hole diameter are sequentially arranged on the filter block from bottom to top. The filter pressing device is applied to the technical field of filter pressing devices.

Description

Technical Field

[0001] This utility model relates to the technical field of filter press devices, and in particular to an improved high-permeability filter press device. Background Technology

[0002] A filter press is a mechanical device that uses a special filter medium to apply pressure to the material, causing the liquid to seep out. It is a commonly used solid-liquid separation device, widely used in industries such as chemical, pharmaceutical, metallurgy, dye, food, brewing, ceramics, and environmental protection. After filtration, the filter cake remains in the filter chamber, while the filtrate is discharged through the drain hole, achieving solid-liquid separation. Currently, the most commonly used filter press is the diaphragm filter press, which uses an elastic membrane between the filter plate and the filter cloth. During operation, after feeding is complete, a high-pressure fluid or gas medium can be injected into the diaphragm plate. This causes the entire diaphragm to bulge and compress the filter cake, further dewatering it—this is commonly referred to as press filtration. Currently, commonly used filter presses discharge the filtrate through the inlet hole, which contains filter media for secondary filtration. After prolonged use, this filter media is prone to clogging, significantly reducing the filtrate flow rate. Filtrate that is not discharged in time accumulates in the filter cake, affecting the water recovery rate. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an improved high-permeability pressure filter device with simple structure, convenient use and improved filtrate outflow efficiency.

[0004] The technical solution adopted by this utility model is as follows: This utility model includes a mounting frame, a hydraulic output component disposed at one end of the mounting frame, a pressing plate disposed at the movable end of the hydraulic output component, a plurality of filter press plate assemblies that slide in cooperation with the mounting frame, and a recycling cart disposed at the bottom of the mounting frame. The bottom of the filter press plate assembly is provided with a filter block for filtering materials. The filter block is provided with a filter layer, a buffer layer and a support layer with gradually increasing perforation diameter from bottom to top.

[0005] Furthermore, the filter press plate assembly includes a filter press frame plate, a diaphragm disposed on the filter press frame plate for pressing the filter cake, a filter cloth fixedly connected to the filter press frame plate for intercepting solid substances, and sliding blocks disposed on both sides of the filter press frame plate. Both sets of sliding blocks are slidably engaged with the mounting frame. A pressurizing chamber for lifting the diaphragm is formed on the rear side of the filter press frame plate, and a filter press chamber for accommodating the filter cake is formed on the front side of the filter press frame plate. The filter cloth is disposed between the pressurizing chamber and the filter press chamber. A flow pipe for material to enter the filter press chamber is formed in the middle of the filter press chamber. An outflow chamber is formed at the bottom of the filter press frame plate. The outflow chamber is disposed below the filter block and has a plurality of support blocks for lifting the filter block.

[0006] Furthermore, the upper part of the flow tube is formed with a plurality of inflow holes, a first groove and a second groove for material to enter. The inflow holes are located at the top of the flow tube, the first groove is located at the bottom of the flow tube, the first groove is connected and fixed to the diaphragm, and the second groove is connected and fixed to the filter cloth. The distance between two adjacent inflow holes is equal.

[0007] Furthermore, the upper part of the filter press plate is formed with a tracheal connector that communicates with the pressurization chamber, and the upper part of the filter press plate is symmetrically provided with two sets of limiting hooks and two sets of limiting blocks, and the limiting hooks are engaged with the limiting blocks on the other filter press plate.

[0008] Furthermore, the upper part of the extrusion plate is formed with a hook that cooperates with the limiting block.

[0009] Furthermore, the filter press frame plate is provided with a flow guiding protrusion, which is guided and engaged with the flow pipe of another filter press frame plate.

[0010] Furthermore, the mounting frame includes two support seats, a track plate disposed between the two support seats, a guard plate disposed below the track plate, and a support frame disposed in the middle of the track plate. The track plate is slidably engaged with the filter plate assembly and the extrusion plate. A guide plate is formed between the two sets of support frames. The guide plate is located above the recycling vehicle. Two first universal wheels are disposed below each support seat.

[0011] Furthermore, the hydraulic output assembly includes an output device, a hydraulic control box, a reservoir, and a pressure gauge. The output device is fixedly connected to the mounting bracket. The hydraulic control box is located above the output device. The reservoir is fixedly connected to the hydraulic control box. The hydraulic control box has an input pipe and a return pipe connected to the output device. The pressure gauge is located on one side of the hydraulic control box. The output device has a movable end connected to the extrusion plate.

[0012] Furthermore, the recycling vehicle includes a tray, a number of second omnidirectional wheels, and an outflow pipe. The number of second omnidirectional wheels are disposed on the lower surface of the tray, the outflow pipe is disposed at one end of the tray, and a number of handles for pulling are disposed on the side of the tray.

[0013] The beneficial effects of this utility model are as follows: Because the filter block of this utility model adopts a three-layer filtration structure to screen impurities in layers, it effectively improves the permeability of the filtrate, avoids impurities accumulating on a single filtration layer and causing blockage, and affects the subsequent flow of filtrate. The overall structure is compact, practical and convenient. With the support block set in the outflow cavity, it is convenient for staff to quickly replace after long-term use, simplifying the workflow. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of two adjacent filter press plates of this utility model.

[0016] Figure 3 This is an exploded view of the filter press frame plate and filter block of this utility model;

[0017] Figure 4 yes Figure 3 A magnified view of part A in the middle;

[0018] Figure 5 This is a cross-sectional view of the filter block of this utility model;

[0019] Figure 6 This is a cross-sectional view of the filter press assembly of this utility model;

[0020] Figure 7 yes Figure 6 A magnified view of part B in the middle section;

[0021] Figure 8 This is a structural schematic diagram of the mounting bracket and extrusion plate of this utility model;

[0022] Figure 9 This is a schematic diagram of the structure of this utility model;

[0023] Figure 10 This is a structural schematic diagram of the recycling vehicle of this utility model.

[0024] In the diagram: 1. Mounting bracket; 11. Support base; 12. Track plate; 13. Guard plate; 14. Support frame; 15. Guide plate; 16. First caster wheel; 2. Hydraulic output assembly; 21. Output device; 22. Hydraulic control box; 23. Liquid storage tank; 24. Input pipe; 25. Return pipe; 26. Pressure gauge; 3. Extrusion plate; 31. Hook; 4. Filter press plate assembly; 41. Filter press frame plate; 411. Air pipe connector; 412. Limit hook; 413. 414 Limiting block; 42 Guide protrusion; 43 Diaphragm; 44 Filter cloth; 45 Sliding block; 46 Pressurizing chamber; 47 Filtering chamber; 48 Flow pipe; 49 Support block; 50 Filter block; 51 Filter layer; 52 Buffer layer; 53 Support layer; 60 Recycling cart; 61 Tray; 62 Second caster wheel; 63 Outlet pipe; 64 Handle. Detailed Implementation

[0025] like Figures 1 to 10As shown, in this embodiment, the present invention includes a mounting frame 1, a hydraulic output assembly 2 disposed at one end of the mounting frame 1, a pressing plate 3 disposed at the movable end of the hydraulic output assembly 2, a plurality of filter press plate assemblies 4 that slide in cooperation with the mounting frame 1, and a recycling cart 6 disposed at the bottom of the mounting frame 1. The pressing plate 3 forms an extension block 6 that slides in cooperation with the mounting frame 1. The bottom of the filter press plate assembly 4 is provided with a filter block 5 for filtering materials. The filter block 5 is provided with a filter layer 51, a buffer layer 52, and a support layer 53 with gradually increasing perforation diameter from bottom to top. The support layer 53 is a metal screen for preliminary filtration. Larger impurities in the filter material are stored in the filter press chamber 46. At the same time, the support layer 53 provides support for the filter cake. The middle buffer layer 52 is made of woven or non-woven fabric and is used for secondary filtration of small impurities to further improve the purity of the filtrate. The filter layer 51 is made of polyester material and is used to filter fine impurities in the material. The filter block 5 adopts a three-layer filtration structure to screen impurities in layers, which effectively improves the permeability of the filtrate and avoids impurities accumulating on a single filter layer 51 and causing blockage, which would affect the subsequent flow of filtrate. The overall structure is compact, practical and convenient. With the support block 49 set in the outflow chamber 48, it is convenient for staff to quickly replace the filter after long-term use, simplifying the workflow.

[0026] In this embodiment, the filter press plate assembly 4 includes a filter press frame plate 41, a diaphragm 42 disposed on the filter press frame plate 41 for pressing the filter cake, a filter cloth 43 fixedly connected to the filter press frame plate 41 for intercepting solid substances, and sliding blocks 44 disposed on both sides of the filter press frame plate 41. Both sets of sliding blocks 44 are slidably engaged with the mounting frame 1. A pressurizing chamber 45 is formed on the rear side of the filter press frame plate 41 for lifting the diaphragm 42, and a filter press chamber 46 is formed on the front side of the filter press frame plate 41 for accommodating the filter cake. The filter cloth 43 is disposed on the pressurizing chamber. Between the chamber 45 and the filter press chamber 46, a flow pipe 47 for material to enter the filter press chamber 46 is formed in the middle of the filter press chamber 46. An outlet chamber 48 is formed at the bottom of the filter press frame plate 41. The outlet chamber 48 is located below the filter block 5. The outlet chamber 48 has a plurality of support blocks 49 for supporting the filter block 5. The diaphragm 42 has good elasticity and can deform when the air pressure in the pressurization chamber 45 changes, which is used to squeeze the filter cake to further reduce the moisture content in the filter cake. The outlet chamber 48 has a filtrate flow pipe 47 that communicates with the outside.

[0027] In this embodiment, the upper part of the flow tube 47 is formed with a plurality of inflow holes 471, a first groove 472 and a second groove 473 for material to enter. The inflow holes 471 are disposed at the top of the flow tube 47, the first groove 472 is disposed at the bottom of the flow tube 47, the first groove 472 is connected and fixed to the diaphragm 42, and the second groove 473 is connected and fixed to the filter cloth 43. The distance between two adjacent inflow holes 471 is equal.

[0028] In this embodiment, the upper part of the filter press plate 41 is formed with an air pipe connector 411 that communicates with the pressurization chamber 45. The upper part of the filter press plate 41 is symmetrically provided with two sets of limiting hooks 412 and two sets of limiting blocks 413. The limiting hooks 412 are engaged with the limiting blocks 413 on the other filter press plate 41. The limiting blocks 413 are made of rubber. Under the push of the hydraulic output device 21, the front end of the limiting hook 412 deforms and engages with the limiting block 413 for clamping and limiting the adjacent filter press plates 41.

[0029] In this embodiment, the upper part of the extrusion plate 3 is formed with a hook 31 that cooperates with the limiting block 413. The side of the hook 31 that contacts the limiting block 413 is made of rubber and has good elasticity. When it approaches the filter press plate 41, the front end of the hook 31 deforms under the push of the hydraulic output component 2 and engages with the limiting block 413.

[0030] In this embodiment, the filter press plate 41 is provided with a flow guide protrusion 414, which is guided and engaged with the flow pipe 47 of another filter press plate 41.

[0031] In this embodiment, the mounting frame 1 includes two support seats 11, a track plate 12 disposed between the two support seats 11, a guard plate 13 disposed below the track plate 12, and a support frame 14 disposed in the middle of the track plate 12. The track plate 12 is slidably engaged with the filter press plate group 4 and the extrusion plate 3. A guide plate 15 is formed between the two sets of support frames 14. The guide plate 15 is located above the recycling vehicle 6. Two first universal wheels 16 are provided below each support seat 11. The guard plate 13 is used to prevent the extrusion plate 3 and the filter press frame plate 41 from falling, and plays a supporting and protective role. The two sides of the guide plate 15 form an angle with the ground. After the filter press is completed, the two adjacent filter press frame plates 41 are opened, and the filter cake can fall into the recycling vehicle 6 along the direction of the guide plate 15 when it falls, preventing the filter residue from accumulating on the mounting frame 1.

[0032] In this embodiment, the hydraulic output assembly 2 includes an output device 21, a hydraulic control box 22, a storage tank 23, and a pressure gauge 26. The output device 21 is fixedly connected to the mounting bracket 1. The hydraulic control box 22 is disposed above the output device 21. The storage tank 23 is fixedly connected to the hydraulic control box 22. The hydraulic control box 22 has an input pipe 24 and a return pipe 25 connected to the output device 21. The pressure gauge 26 is disposed on one side of the hydraulic control box 22. The output device 21 is connected to the extrusion plate 3 at its movable end. The output device 21 is also connected to the external material input pipe 24 for introducing the material to be filtered.

[0033] In this embodiment, the recycling vehicle 6 includes a tray 61, a plurality of second universal wheels 62 and an outlet pipe 63. The plurality of second universal wheels 62 are disposed on the lower surface of the tray 61, the outlet pipe 63 is disposed at one end of the tray 61, and a plurality of handles 64 for pulling are disposed on the side of the tray 61.

[0034] The working principle of this utility model:

[0035] When in use, push the recycling cart 6 under the mounting frame 1 to collect the filter cake after pressing;

[0036] When the machine starts working, the hydraulic control box 22 pushes the hydraulic oil in the storage tank 23 into the output device 21. The output device 21 pushes the extrusion plate 3 to slide forward on the mounting bracket 1. The extrusion plate 3 pushes multiple filter press frame plates 41 closer together and they fit together. The limiting blocks 413 and limiting hooks 412 between adjacent filter press frame plates 41 engage to prevent loosening. The hydraulic control box 22 controls the output device 21 to continuously increase the thrust until the pressure gauge 26 shows that the pressure value has reached the set level. Then it can be manually shut off. At this time, the multiple filter press frame plates 41 are tightly fitted together. The material to be filtered is introduced into one side of the output device 21. The material passes through the extrusion plate 3 and enters the multiple filter press plate group 4 and flows along the inlet 4 of the flow pipe 47. 71 is poured into the filter press chamber 46. The filter cloth 43 deforms to intercept solid impurities in the material. The liquid in the material flows through the filter press block into the outflow chamber 48 and out to the external filtrate recovery tank. Then, the gas pipe connector 411 connected to the external gas generator introduces gas into the pressurization chamber 45. The diaphragm 42 deforms and squeezes the filter cake, causing the liquid in the filter cake to flow out further, reducing the moisture in the filter cake. After the secondary squeezing is completed, the hydraulic control box 22 draws hydraulic oil from the output device 21, causing the output device 21 to retract. The operator or robotic arm pulls open the two adjacent filter press frame plates 41. When pulling open, the front end of the limit hook 412 deforms and disengages from the limit block 413. The filter cake in the filter press chamber 46 falls into the recovery vehicle 6.

[0037] Although the embodiments of this utility model are described with reference to actual solutions, they do not constitute a limitation on the meaning of this utility model. For those skilled in the art, modifications to the implementation schemes and combinations with other schemes based on this specification are obvious.

Claims

1. An improved high-permeability filter press, characterized in that: The device includes a mounting frame (1), a hydraulic output assembly (2) disposed at one end of the mounting frame (1), a pressing plate (3) disposed at the movable end of the hydraulic output assembly (2), a plurality of filter press plate assemblies (4) that slide with the mounting frame (1), and a recycling cart (6) disposed at the bottom of the mounting frame (1). The bottom of the filter press plate assembly (4) is provided with a filter block (5) for filtering materials. The filter block (5) is provided with a filter layer (51), a buffer layer (52) and a support layer (53) with gradually increasing perforation diameter from bottom to top.

2. The improved high-permeability filter press according to claim 1, characterized in that: The filter press plate assembly (4) includes a filter press frame plate (41), a diaphragm (42) disposed on the filter press frame plate (41) for pressing the filter cake, a filter cloth (43) fixedly connected to the filter press frame plate (41) for intercepting solid substances, and sliding blocks (44) disposed on both sides of the filter press frame plate (41). Both sets of sliding blocks (44) are slidably engaged with the mounting frame (1). A pressure chamber (45) for lifting the diaphragm (42) is formed on the rear side of the filter press frame plate (41). 1) A filter press chamber (46) for accommodating filter cake is formed on the front side. The filter cloth (43) is disposed between the pressurizing chamber (45) and the filter press chamber (46). A flow pipe (47) for material to enter the filter press chamber (46) is formed in the middle of the filter press chamber (46). An outlet chamber (48) is formed at the bottom of the filter press frame plate (41). The outlet chamber (48) is disposed below the filter block (5). The outlet chamber (48) has a plurality of support blocks (49) for supporting the filter block (5).

3. The improved high-permeability filter press according to claim 2, characterized in that: The upper part of the flow tube (47) is formed with a plurality of inflow holes (471), a first groove (472) and a second groove (473) for material to enter. The inflow holes (471) are located at the top of the flow tube (47), the first groove (472) is located at the bottom of the flow tube (47), the first groove (472) is connected and fixed to the diaphragm (42), and the second groove (473) is connected and fixed to the filter cloth (43). The distance between two adjacent inflow holes (471) is equal.

4. An improved high-permeability filter press according to claim 2, characterized in that: The upper part of the filter press plate (41) is formed with a tracheal connector (411) communicating with the pressurization chamber (45). The upper part of the filter press plate (41) is symmetrically provided with two sets of limiting hooks (412) and two sets of limiting blocks (413). The limiting hooks (412) are engaged with the limiting blocks (413) on the other filter press plate (41).

5. An improved high-permeability filter press according to claim 4, characterized in that: The upper part of the extrusion plate (3) has a hook (31) that cooperates with the limiting block (413).

6. An improved high-permeability filter press according to claim 2, characterized in that: The filter press frame plate (41) is provided with a flow guide protrusion (414), which is guided and cooperates with the flow pipe (47) of another filter press frame plate (41).

7. An improved high-permeability filter press according to claim 1, characterized in that: The mounting frame (1) includes two support seats (11), a track plate (12) disposed between the two support seats (11), a guard plate (13) disposed below the track plate (12), and a support frame (14) disposed in the middle of the track plate (12). The track plate (12) is slidably engaged with the filter press plate group (4) and the extrusion plate (3). A guide plate (15) is formed between the two sets of support frames (14). The guide plate (15) is located above the recycling vehicle (6). Two first universal wheels (16) are disposed below each support seat (11).

8. An improved high-permeability filter press according to claim 1, characterized in that: The hydraulic output assembly (2) includes an output device (21), a hydraulic control box (22), a reservoir (23), and a pressure gauge (26). The output device (21) is fixedly connected to the mounting bracket (1). The hydraulic control box (22) is located above the output device (21). The reservoir (23) is fixedly connected to the hydraulic control box (22). The hydraulic control box (22) has an input pipe (24) and a return pipe (25) connected to the output device (21). The pressure gauge (26) is located on one side of the hydraulic control box (22). The output device (21) has a movable end connected to the extrusion plate (3).

9. An improved high-permeability filter press according to claim 1, characterized in that: The recycling vehicle (6) includes a tray (61), a number of second universal wheels (62) and an outlet pipe (63). The number of second universal wheels (62) are disposed on the lower surface of the tray (61), the outlet pipe (63) is disposed at one end of the tray (61), and the side of the tray (61) is provided with a number of handles (64) for pulling.

Images