A plate-type filtration device for chemical production

Abstract

The present invention relates to the technical field of plate-type filtering devices, and discloses a plate-type filtering device for chemical production, which includes a frame. A filtering unit for filtering chemicals is provided on the frame. A hydraulic push rod for driving the filtering unit to slide is provided on the frame. The filtering unit includes a thrust plate, a filtering plate, and a pressing plate that are sequentially slidably arranged on the frame. The pressing plate is connected to the output end of the hydraulic push rod. Cleaning components for cleaning the filtering plate and the pressing plate are provided on both the filtering plate and the pressing plate. The cleaning components rotate as the filtering plate moves. A blanking unit for crushing chemicals is provided on the frame. By driving multiple groups of filtering plates and thrust plates to approach or move away from each other synchronously through the pressing plate, the separation efficiency is high. With the cooperation of the cleaning unit, it is convenient to complete the cleaning operation of the filtering plate while the filtering plate is opened, improving the yield of chemicals and the efficiency of chemical filtering and production.

Description

Technical Field

[0001] The present invention relates to the technical field of plate-type filtering devices, and specifically refers to a plate-type filtering device for chemical production. Background Art

[0002] The plate-type filtering device is a filtering device commonly used in chemical production, mainly used for separating solid particles and liquids to improve the purity and quality of products.

[0003] The existing plate-type filtering devices for chemical production usually consist of a series of filter plates. Filter media are provided on the filter plates, and different types of membrane materials are usually selected for the filter media according to the chemicals to be filtered. The filter plates are arranged on a frame structure, and the filter plates are made to approach each other by a hydraulic device or other driving components, so as to perform solid-liquid separation operations on the chemicals to be filtered. The liquid is output through a pipeline, and the solids fall under the action of gravity onto a conveying component for conveying. For the plate-type filtering device for chemical production with such a structure, after the filtering is completed, the filter plates are usually separated one by one by a pull plate trolley slidably arranged on the frame. This way of separating the filter plates one by one has a slow separation speed and low separation efficiency, reducing the efficiency of chemical production. Moreover, after the filter plates are separated, the solid chemicals usually fall under the action of gravity, making the chemicals prone to adhesion on the filter plates, and it is also necessary for operators to clean the filter plates, reducing the chemical yield while reducing the efficiency of chemical filtering and production. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a plate-type filtering device for chemical production.

[0005] To solve the above technical problem, the technical solution provided by the present invention is: a plate-type filtering device for chemical production, including a frame. A filtering unit for filtering chemicals is provided on the frame. A hydraulic push rod for driving the filtering unit to slide is provided on the frame. The filtering unit includes a thrust plate, filter plates and a pressing plate that are sequentially slidably arranged on the frame. The pressing plate is connected to the output end of the hydraulic push rod. Multiple groups of filter plates are provided. Filter support columns are provided on the thrust plate, filter plates and the pressing plate. Filter connecting rod I and filter connecting rod II are sequentially rotatably provided on the filter support columns from top to bottom. Both ends of filter connecting rod I are respectively rotatably connected to adjacent two groups of filter connecting rod II. Cleaning components for cleaning the filter plates and the pressing plate are provided on both the filter plates and the pressing plate. The cleaning components rotate as the filter plates move. A blanking unit for pulverizing chemicals is provided on the frame below the cleaning components.

[0006] As an improvement, the cleaning assembly includes a cleaning arm rotatably arranged on the filtering support column. Cleaning plates are symmetrically arranged on the cleaning arm. Cleaning brushes are symmetrically arranged on one side of the cleaning plate, and cleaning scrapers are symmetrically arranged on the other side of the cleaning plate. A mating plate that rotates with the cleaning arm is rotatably arranged on the filtering support column, and a mating brush is arranged on the mating plate.

[0007] As an improvement, a driving assembly for driving the cleaning arm to rotate is arranged on the filtering support column. The driving assembly includes a positioning sleeve arranged on the filtering support column. A spiral spring is arranged inside the positioning sleeve. A connecting sleeve rotatably connected to one end of the spiral spring is rotatably arranged on the positioning sleeve. A driving gear connected to the cleaning arm is arranged on the connecting sleeve. A mating gear meshing with the driving gear is rotatably arranged on the filtering support column, and the mating gear is connected to the mating plate. A driving pull rope is wound on the connecting sleeve, and one end of the driving pull rope is connected to the adjacent filtering plate.

[0008] As an improvement, stretching blocks cooperating with the corresponding cleaning arms are arranged on both the filtering plate and the pressing plate. Stretching ropes are arranged on the stretching blocks. A stretching slider connected to the stretching rope is slidably arranged on the cleaning arm. A tension spring connected to the cleaning arm is arranged at one end of the stretching slider away from the stretching rope. Vibration springs are symmetrically arranged on the stretching slider, and vibration ball heads are arranged on the vibration springs. Cleaning shifting rods cooperating with the vibration springs are arranged on the cleaning plate.

[0009] As an improvement, the blanking unit includes a blanking sieve plate arranged on the frame. A turning plate is rotatably arranged below the blanking sieve plate on the frame. A sliding block is slidably arranged on the frame. A positioning chute is arranged at one end of the sliding block extending into the frame. A positioning slider is slidably arranged in the positioning chute, and a turning arm connected to the turning plate is arranged on the positioning slider.

[0010] As an improvement, blanking chutes are arranged on the blanking sieve plate. Fitting sliders are slidably arranged on the blanking chutes. Crushing frames cooperating with the blanking sieve plate are arranged on the fitting sliders. The two groups of crushing frames are arranged alternately. A bearing plate is arranged on one side of the positioning chute. A connecting slide bar is slidably arranged on the bearing plate. A connecting spring is sleeved above the bearing plate on the connecting slide bar. A support plate is arranged at the lower end of the connecting slide bar. A connecting arm rotatably connected to the fitting slider is rotatably arranged on the support plate.

[0011] As an improvement, a sliding beam is arranged on the frame. Support sliders slidably connected to the sliding beam are arranged on both sides of the filtering plate and the pressing plate.

[0012] As an improvement, a closing assembly for closing the frame is arranged on the frame. The closing assembly includes an upper cover plate, side cover plates and end cover plates. The side cover plates are symmetrically arranged on both sides of the frame.

[0013] The beneficial effects of the present invention compared with the prior art are as follows: Through the cooperation of the first filtering connecting rod and the second filtering connecting rods respectively rotatably connected to both ends of the first filtering connecting rod, the hydraulic push rod can drive a plurality of filter plates and the thrust plate to approach or move away from each other synchronously through the pressing plate, improving the separation speed of the plurality of filter plates, with high separation efficiency. With the cooperation of the cleaning unit, it is convenient to complete the cleaning operation of the filter plates while the filter plates are opened, improving the recovery rate of chemicals and the efficiency of chemical filtering and production. Specifically:

[0014] 1. During the opening process of the filter plate, the driving pull rope drives the connecting sleeve to rotate along the positioning sleeve. At the same time, the clockwork spring stretches and stores energy. The connecting sleeve drives the cleaning arm to rotate through the driving gear connected thereto. The cleaning arm drives the cleaning scraper and the cleaning brush to rotate. Further, the rotating driving gear drives the matching plate to rotate through the meshing matching gear, and the matching plate drives the matching brush to rotate. The rotating cleaning scraper, cleaning brush and matching brush cooperate to clean the filter plate by combining scraping and brushing, avoiding the adhesion of chemicals on the filter plate, eliminating the need for operators to clean the filter plate, improving the recovery rate of chemicals, and improving the efficiency of chemical filtering and production;

[0015] 2. While the cleaning arm rotates, due to the limiting effect of the stretching block, stretching rope and tension spring, the stretching slider slides along the cleaning arm. While the stretching slider slides, it drives the vibration spring and the vibration ball head to slide synchronously. Since the stretching slider and the cleaning plate slide relative to each other, the cleaning lever on the cleaning plate will continuously push the vibration spring, causing the vibration ball head to vibrate, and then causing the filter plate to vibrate slightly, facilitating the shaking off of the chemicals adhered to the filter plate and improving the cleaning effect on the filter plate;

[0016] 3. While the sliding block moves downward, it drives the positioning chute to move synchronously. The positioning chute drives the flap rotatably arranged on the frame to rotate and open through the positioning slider and the rotating arm, thereby realizing the blanking operation. During the downward movement of the positioning chute, the bearing plate drives the connecting slide rod to slide downward synchronously. The connecting slide rod cooperates with the supporting plate and the connecting arm to slide the matching slider along the blanking chute. The matching slider drives the two crushing frames to slide, thereby crushing the chemicals on the blanking sieve plate, facilitating the transportation of the chemicals and improving the production efficiency of the chemicals. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a plate-type filtering device for chemical production according to the present invention.

[0018] Figure 2 is an exploded view of a plate-type filtering device for chemical production according to the present invention.

[0019] Figure 3It is a schematic structural view of the part of the closing component removed from a plate-type filtering device for chemical production according to the present invention.

[0020] Figure 4 It is a schematic structural view of the filtering component part of a plate-type filtering device for chemical production according to the present invention.

[0021] Figure 5 It is a schematic structural view of the filter plate part of a plate-type filtering device for chemical production according to the present invention.

[0022] Figure 6 It is a schematic structural view of the cleaning component part of a plate-type filtering device for chemical production according to the present invention.

[0023] Figure 7 It is an exploded view of the cleaning component part of a plate-type filtering device for chemical production according to the present invention.

[0024] Figure 8 It is a schematic structural view of the frame part of a plate-type filtering device for chemical production according to the present invention.

[0025] Figure 9 It is a sectional view of the frame part of a plate-type filtering device for chemical production according to the present invention.

[0026] Figure 10 It is a schematic structural view of the blanking unit part of a plate-type filtering device for chemical production according to the present invention.

[0027] Figure 11 It is an exploded view of the blanking unit part of a plate-type filtering device for chemical production according to the present invention.

[0028] As shown in the figure: 1. Frame; 11. Enclosure assembly; 111. Upper cover plate; 112. Side cover plate; 113. End cover plate; 12. Pipeline assembly; 121. Feed pipe; 122. Filtrate pipe; 13. Limit sliding groove; 2. Filter unit; 21. Thrust plate; 22. Filter plate; 23. Compression plate; 24. Hydraulic push rod; 25. Support slider; 26. Sliding beam; 27. Cleaning assembly; 271. Cleaning arm; 2711. Cleaning plate; 2712. Cleaning brush; 2713. Cleaning lever; 2714. Cleaning scraper; 272. Matching plate; 2721. Matching brush; 273. Driving assembly; 2731. Driving gear; 2732. Matching gear; 2733. Driving pull rope; 2734. Guide pipe; 2735. Column; 2736. Positioning sleeve; 2737. Hairspring; 2738. Connecting sleeve; 274. Tensile block; 2741. Tensile rope; 2742. Tension spring; 2743. Tensile slider; 2744. Vibration spring; 2745. Vibration ball head; 275. Traction block; 2751. Traction sleeve; 28. Filter support; 281. Filter connecting rod one; 282. Filter connecting rod two; 3. Feeding unit; 31. Feeding sieve plate; 32. Flap; 33. Sliding block; 331. Positioning sliding groove; 332. Positioning slider; 333. Rotating arm; 334. Bearing plate; 34. Electric push rod; 35. Connecting sliding rod; 351. Connecting spring; 352. Support plate; 353. Connecting arm; 354. Matching slider; 355. Crushing frame; 356. Feeding sliding groove. Detailed implementation mode

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Combined with the attached Figure 1 and attached Figure 2 and attached Figure 3 and attached Figure 6 and attached Figure 8 And attached Figure 10 As shown in the attached figures, a plate type filtering device for chemical production includes a frame 1. A filter unit 2 for filtering chemicals is provided on the frame 1. A hydraulic push rod 24 for driving the filter unit 2 to slide is provided on the frame 1. The filter unit 2 includes a thrust plate 21, a filter plate 22 and a compression plate 23 that are sequentially slidably arranged on the frame 1. The thrust plate 21 is fixedly connected to the frame 1. The compression plate 23 is connected to the output end of the hydraulic push rod 24. Multiple groups of filter plates 22 are provided. Cleaning assemblies 27 for cleaning the filter plates 22 and the compression plate 23 are provided on both the filter plates 22 and the compression plate 23. The cleaning assemblies 27 rotate as the filter plates 22 move. A feeding unit 3 for crushing chemicals is provided on the frame 1 below the cleaning assemblies 27.

[0031] On one side of the frame 1 close to the thrust plate 21, a pipeline assembly 12 is communicatively provided. The pipeline assembly 12 includes a feed pipe 121 and a filtrate pipe 122. Feed through-holes communicating with the feed pipe 121 are provided on the thrust plate 21 and the filter plate 22. Filtrate through-holes communicating with the filtrate pipe 122 are provided on the thrust plate 21 and the filter plate 22. This is the current general technology and will not be elaborated here.

[0032] The working principle of the present invention: The hydraulic push rod 24 extends. The hydraulic push rod 24 drives multiple groups of the filter plates 22 to approach the thrust plate 21 through the pressing plate 23. When the pressure reaches the set pressure value, the hydraulic push rod 24 stops extending. At this time, a filter chamber is formed between two adjacent groups of the filter plates 22. The chemical to be filtered is input into each filter chamber through the feed pipe 121. The chemical is retained in the filter chamber and forms a filter cake. The filtrate is discharged through the filtrate pipe 122 via the filtrate channels formed by the filtrate through-holes on multiple groups of the filter plates 22. After the pressure filtration is completed, the hydraulic push rod 24 is operated to shorten, and multiple groups of the filter plates 22 are driven to move away from the thrust plate 21 through the pressing plate 23. During this process, the cleaning assembly 27 works, and the cleaning assembly 27 cleans the chemicals adhered to the filter plates 22 to improve the recovery rate of the chemicals. After the cleaning is completed, the blanking unit 3 is started to crush and discharge the chemicals, thereby completing the filtration operation of the chemicals.

[0033] Combined with the attached Figure 2 、attached Figure 3 and attached Figure 4 As shown, filter supports 28 are provided on the thrust plate 21, the filter plates 22, and the pressing plate 23. A first filter connecting rod 281 and a second filter connecting rod 282 are rotatably provided on the filter support 28 from top to bottom in sequence. Two ends of the first filter connecting rod 281 are respectively rotatably connected to two adjacent second filter connecting rods 282. Since there is no connection relationship on the side of the first filter connecting rod 281 and the second filter connecting rod 282 provided on the thrust plate 21 and the pressing plate 23 away from the filter plate 22, the structure on this side is omitted.

[0034] The working principle of the pressing plate 23 driving the movement of the filter plate 22: When the hydraulic push rod 24 drives the pressing plate 23 to move towards the thrust plate 21, the first filter link 281 and the second filter link 282 provided on the pressing plate 23 drive the second filter link 282 and the first filter link 281 on the adjacent filter plate 22 to rotate synchronously. And so on, the first filter link 281 and the second filter link 282 on the filter plate 22 close to the thrust plate 21 drive the second filter link 282 and the first filter link 281 on the thrust plate 21 to rotate synchronously. Since the thrust plate 21 is fixedly connected to the frame 1, when the thrust plate 21 and multiple groups of the filter plates 22 approach each other, they move towards the pressing plate 23 at the same time, thus forming a filter chamber for facilitating the filtration of chemicals. On the contrary, when the hydraulic push rod 24 drives the pressing plate 23 to move away from the thrust plate 21, the pressing plate 23 and multiple groups of the filter plates 22 move away from each other and move away from the pressing plate 23 at the same time, so that the filter chamber is opened, facilitating the cleaning of the filter cake formed by the chemicals in the filter chamber out of the filter chamber.

[0035] Combined with the attached Figure 4 and the attached Figure 5 and the attached Figure 6 and the attached Figure 7 As shown in the attached figures, the cleaning assembly 27 includes a cleaning arm 271 rotatably arranged on the filter support 28. The cleaning arms 271 are symmetrically arranged. Cleaning plates 2711 are symmetrically provided on the cleaning arms 271. Cleaning brushes 2712 are symmetrically provided on one side of the cleaning plates 2711. The bristles of the cleaning brushes 2712 outside the cleaning plates 2711 are longer than the bristles of the cleaning brushes 2712 inside the cleaning plates 2711. Cleaning scrapers 2714 are symmetrically provided on the other side of the cleaning plates 2711. A mating plate 272 that rotates with the cleaning arm 271 is rotatably arranged on the filter support 28. A mating brush 2721 is provided on the mating plate 272;

[0036] A driving assembly 273 for driving the cleaning arm 271 to rotate is provided on the filter support 28. The driving assembly 273 includes a positioning sleeve 2736 provided on the filter support 28. A clamping post 2735 is arranged in the positioning sleeve 2736. A clockwork spring 2737 is provided on the clamping post 2735. A connecting sleeve 2738 connected to one end of the clockwork spring 2737 is rotatably arranged on the positioning sleeve 2736. A driving gear 2731 connected to the cleaning arm 271 is provided on the connecting sleeve 2738. A mating gear 2732 meshing with the driving gear 2731 is rotatably arranged on the filter support 28. The mating gear 2732 is connected to the mating plate 272. A driving pull rope 2733 is wound around the connecting sleeve 2738. One end of the driving pull rope 2733 is connected to the adjacent filter plate 22. Guide tubes 2734 are provided on both the filter plate 22 and the pressing plate 23. A traction block 275 is provided on the filter plate 22. A traction sleeve 2751 cooperating with the adjacent driving pull rope 2733 is provided on the traction block 275.

[0037] Working principle of the cleaning component 27: When two adjacent filter plates 22 move away from each other, the filter plate 22 drives the driving pull rope 2733 to move through the cooperation of the traction block 275 and the traction sleeve 2751. The driving pull rope 2733 drives the connecting sleeve 2738 to rotate. The connecting sleeve 2738 drives the clockwork spring 2737 to rotate, and the clockwork spring 2737 stores energy. At the same time, the connecting sleeve 2738 drives the driving gear 2731 connected thereto to rotate. While the driving gear 2731 rotates, it drives the mating gear 2732 engaged therewith to rotate. The driving gear 2731 drives the cleaning arm 271 to rotate. The cleaning arm 271 drives the cleaning brush 2712 and the cleaning scraper 2714 to rotate. The mating gear 2732 drives the mating brush 2721 to rotate through the mating plate 272. The rotating cleaning brush 2712, cleaning scraper 2714 and mating brush 2721 clean the filter plate 22 by a combination of scraping and brushing, avoiding the adhesion of chemicals on the filter plate 22, improving the recovery rate of chemicals. At the same time, there is no need for operators to manually clean the filter plate 22, improving the efficiency of chemical filtration and the production efficiency of chemicals.

[0038] Combined with the attached Figure 4 and the attached Figure 5 and the attached Figure 6 and the attached Figure 7 As shown in the attached

[0039] Working principle of the vibrating ball head 2745 during movement: When the cleaning arm 271 rotates, the cleaning plate 2711 rotates synchronously. At the same time, due to the limiting effect of the stretching block 274 and the stretching rope 2741, the stretching slider 2743 slides along the cleaning arm 271. The stretching slider 2743 pulls the tension spring 2742, and the tension spring 2742 elongates. The stretching slider 2743 drives the vibrating ball head 2745 to slide synchronously through the vibrating spring 2744. When the vibrating spring 2744 contacts the cleaning lever 2713, the cleaning lever 2713 toggles the vibrating spring 2744, and the vibrating spring 2744 stores energy through deformation. After the cleaning lever 2713 separates from the vibrating spring 2744, the vibrating spring 2744 quickly returns to its original state and drives the vibrating ball head 2745 to reset, thereby causing the vibrating ball head 2745 to vibrate. Further, the vibrating ball head 2745 continuously knocks on the filter plate 22, which can cause the filter plate 22 to vibrate slightly. The vibrating filter plate 22 can shake off the chemicals adhered to its surface, facilitating the collection of chemicals, avoiding the adhesion of chemicals on the filter plate 22, while improving the recovery rate of chemicals and the filtering efficiency of chemicals.

[0040] Combined with the attached Figure 8 、the attached Figure 9 、the attached Figure 10 and the attached Figure 11 As shown, the blanking unit 3 includes a blanking screen plate 31 provided on the frame 1. The blanking screen plate 31 is provided with screen holes. The frame 1 is rotatably provided with a flap 32 below the blanking screen plate 31. The flaps 32 are symmetrically arranged. A limiting chute 13 is provided inside the frame 1, and a sliding block 33 is slidably provided in the limiting chute 13. An electric push rod 34 is provided on the frame 1, and the output end of the electric push rod 34 is connected to the sliding block 33. One end of the sliding block 33 extending into the frame 1 is provided with a positioning chute 331, and a positioning slider 332 is slidably provided in the positioning chute 331. A rotating arm 333 connected to the flap 32 is provided on the positioning slider 332;

[0041] The blanking screen plate 31 is provided with a blanking chute 356, and a matching slider 354 is slidably provided on the blanking chute 356. A crushing frame 355 matching with the blanking screen plate 31 is provided on the matching slider 354. The two groups of crushing frames 355 are alternately arranged. Crushing columns are equidistantly provided on the crushing frame 355, and convex blocks corresponding to the crushing columns are provided on the blanking screen plate 31. A bearing plate 334 is provided on one side of the positioning chute 331, and a connecting slide rod 35 is slidably provided on the bearing plate 334. A connecting spring 351 is sleeved above the bearing plate 334 on the connecting slide rod 35. A support plate 352 is provided at the lower end of the connecting slide rod 35, and a connecting arm 353 rotatably connected to the matching slider 354 is provided on the support plate 352.

[0042] Working principle of the blanking unit 3: The electric push rod 34 drives the sliding block 33 to slide along the limit chute 13. When the sliding block 33 slides downward along the limit chute 13, the sliding block 33 drives the positioning chute 331 to move downward synchronously. Since the flap 32 is rotatably arranged on the frame 1, therefore, the downward moving positioning chute 331 drives the flap 32 to rotate and open through the cooperation of the positioning slider 332 slidably arranged inside it and the rotating arm 333, realizing the blanking operation of the chemical. Further, while the positioning chute 331 moves downward, the bearing plate 334 moves downward synchronously. The bearing plate 334 drives the support plate 352 to move downward through the connecting slide rod 35. The support plate 352 drives the cooperation slider 354 to slide along the blanking chute 356 through the connecting arm 353 and with the cooperation of the blanking chute 356. The two groups of the cooperation sliders 354 move away from each other, and the crushing frames 355 move away from each other, so as to crush the chemical with the cooperation of the blanking sieve plate 31, facilitating the transportation of the chemical.

[0043] Combined with the attached Figure 1 、the attached Figure 2 、the attached Figure 3 、the attached Figure 4 and the attached Figure 8 As shown, a sliding beam 26 is provided on the frame 1. The sliding beam 26 is symmetrically arranged on both sides of the frame 1. Support sliders 25 slidably connected to the sliding beam 26 are provided on both sides of the filter plate 22 and the pressing plate 23. A closing component 11 for closing the frame 1 is provided on the frame 1. The closing component 11 prevents materials from spilling out and polluting the working place during the operation, improving the protection of the operators. The closing component 11 includes an upper cover plate 111, side cover plates 112 and end cover plates 113. The side cover plates 112 are symmetrically arranged on both sides of the frame 1.

[0044] When the present invention is specifically implemented, the frame 1 is arranged above the chemical conveying mechanism, the flap 32 is directly above the conveying mechanism. The feed pipe 121 is connected to the component providing the chemical to be filtered, and the filtrate pipe 122 is connected to the external filtrate recovery component to complete the placement of the present invention;

[0045] During the operation, the hydraulic push rod 24 is operated to extend. The hydraulic push rod 24 drives the pressing plate 23 and the multiple groups of filter plates 22 to move synchronously closer to the thrust plate 21 through the cooperation of the multiple groups of filter connecting rods one 281 and filter connecting rods two 282. When the pressure reaches the set pressure value, the hydraulic push rod 24 stops extending. At this time, a filter chamber is formed between two adjacent groups of filter plates 22. The chemical to be filtered is input into each filter chamber through the feed pipe 121. The chemical is intercepted in the filter chamber and forms a filter cake. The filtrate is discharged through the filtrate pipe 122 through the filtrate channels formed by the filtrate through holes on the multiple groups of filter plates 22.

[0046] After the filtration is completed, the liquid seeping out of the filter plate 22 during the filtration process on the flap 32 is collected, and the hydraulic push rod 24 is operated to shorten. The hydraulic push rod 24 drives the pressing plate 23 and the multiple groups of filter plates 22 to move away from the thrust plate 21 synchronously through the multiple groups of filter connecting rods 1 281 and filter connecting rods 2 282. The filter chamber is opened, and most of the chemicals fall to the unloading screen plate 31 under the action of gravity and are crushed. The chemicals smaller than the sieve holes on the unloading screen plate 31 continue to fall to the flap 32. In this process, the filter plate 22 drives the connecting sleeve 2738 to rotate by driving the pull rope 2733, and the connecting sleeve The tube 2738 drives the driving gear 2731 to rotate, and the driving gear 2731 drives the mating gear 2732 meshing therewith to rotate. The driving gear 2731 drives the cleaning brush 2712 and the cleaning scraper 2714 to rotate through the cleaning arm 271, and the mating gear 2732 drives the mating brush 2721 to rotate through the mating plate 272. When the cleaning arm 271 rotates, the cleaning lever 2713 moves the vibration spring 2744 to make the vibration ball head 2745 vibrate, thereby driving the filter plate 22 to produce a slight vibration. By combining brushing, sweeping and vibration, chemicals are prevented from adhering to the filter plate 22.

[0047] After the chemicals are cleaned, the electric push rod 34 is extended, and the electric push rod 34 drives the sliding block 33 to slide downward. When the flap 32 is rotated and opened, the crushing frames 355 move away from each other to crush the chemicals, thereby preventing the chemicals from clogging the flap 32 and facilitating the transportation of the chemicals. The chemicals enter the solid chemical conveying mechanism through the flap 32 to complete the filtering operation of the chemicals.

[0048] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A plate-type filtering device for chemical production, comprising a frame (1), a filtering unit (2) for filtering chemicals being provided on the frame (1), and a hydraulic push rod (24) for driving the filtering unit (2) to slide being provided on the frame (1), characterized in that: The filter unit (2) comprises a thrust plate (21), a filter plate (22) and a pressing plate (23) which are slidably arranged on the frame (1) in sequence, the pressing plate (23) being connected to the output end of a hydraulic push rod (24), a plurality of filter plates (22) being arranged, the thrust plate (21), the filter plate (22) and the pressing plate (23) being provided with filter pillars (28), the filter pillars (28) being provided with filter connecting rods 1 (281) and filter connecting rods 2 (282) which are rotatably arranged in sequence from top to bottom, and the two ends of the filter connecting rod 1 (281) are respectively rotatably connected to two adjacent groups of the filter connecting rods 2 (282); The filter plate (22) and the pressing plate (23) are both provided with a cleaning component (27) for cleaning the filter plate (22) and the pressing plate (23); the cleaning component (27) rotates as the filter plate (22) moves; and a material discharge unit (3) for crushing chemicals is provided on the frame (1) below the cleaning component (27); The cleaning assembly (27) comprises a cleaning arm (271) rotatably mounted on a filter support (28); a cleaning plate (2711) is symmetrically mounted on the cleaning arm (271); a cleaning brush (2712) is symmetrically mounted on one side of the cleaning plate (2711); a cleaning scraper (2714) is symmetrically mounted on the other side of the cleaning plate (2711); a matching plate (272) rotatably mounted on the filter support (28) and rotating with the cleaning arm (271); a matching brush (2721) is mounted on the matching plate (272); a driving assembly (273) is mounted on the filter support (28) and driving the cleaning arm (271) to rotate; the driving assembly (273) comprises a drive assembly (273) mounted on the filter support (28); 8), a positioning sleeve (2736) on the filter support (28), a spring spring (2737) being arranged inside the positioning sleeve (2736), a connecting sleeve (2738) being rotatably arranged on the positioning sleeve (2736) and connected to one end of the spring spring (2737), a driving gear (2731) being connected to the cleaning arm (271) being arranged on the connecting sleeve (2738), a matching gear (2732) being rotatably arranged on the filter support (28) and meshing with the driving gear (2731), the matching gear (2732) being connected to the matching plate (272), a driving pull rope (2733) being wound around the connecting sleeve (2738), one end of the driving pull rope (2733) being connected to the adjacent filter plate (22).

2. A plate filter device for chemical production according to claim 1, characterized in that: The filter plate (22) and the pressing plate (23) are both provided with a stretching block (274) that cooperates with the corresponding cleaning arm (271); the stretching block (274) is provided with a stretching rope (2741); a stretching slider (2743) connected to the stretching rope (2741) is slidably provided on the cleaning arm (271); a tension spring (2742) connected to the cleaning arm (271) is provided at one end of the stretching slider (2743) away from the stretching rope (2741); a vibration spring (2744) is symmetrically provided on the stretching slider (2743); a vibration ball head (2745) is provided on the vibration spring (2744); and a cleaning lever (2713) that cooperates with the vibration spring (2744) is provided on the cleaning plate (2711).

3. A plate filter device for chemical production according to claim 1, characterized in that: The unloading unit (3) comprises an unloading screen plate (31) arranged on a frame (1); a flap (32) is rotatably provided on the frame (1) below the unloading screen plate (31); a sliding block (33) is slidably provided on the frame (1); a positioning slide groove (331) is provided at one end of the sliding block (33) extending into the frame (1); a positioning slide block (332) is slidably provided in the positioning slide groove (331); and a rotating arm (333) connected to the flap (32) is provided on the positioning slide block (332).

4. A plate filter device for chemical production according to claim 3, characterized in that: The unloading screen plate (31) is provided with an unloading chute (356), a matching slider (354) is symmetrically slidably provided on the unloading chute (356), a crushing frame (355) matching with the unloading screen plate (31) is provided on the matching slider (354), two groups of crushing frames (355) are alternately arranged, a bearing plate (334) is provided on one side of the positioning chute (331), a connecting slide bar (35) is slidably provided on the bearing plate (334), the connecting slide bar (35) is located above the bearing plate (334) and is sleeved with a connecting spring (351), a supporting plate (352) is provided at the lower end of the connecting slide bar (35), and a connecting arm (353) rotatably connected with the matching slider (354) is rotatably provided on the supporting plate (352).

5. The plate filter device for chemical production according to claim 1, characterized in that: The frame (1) is provided with a sliding beam (26), and both sides of the filter plate (22) and the pressing plate (23) are provided with supporting sliding blocks (25) that are slidably connected to the sliding beam (26).

6. A plate filter device for chemical production according to any one of claims 1 to 5, characterized in that: The frame (1) is provided with a closing component (11) for closing the frame (1); the closing component (11) comprises an upper cover plate (111), a side cover plate (112) and an end cover plate (113); the side cover plates (112) are symmetrically arranged on both sides of the frame (1).

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