Plate type filtering device for chemical production

Abstract

The invention relates to the technical field of plate-type filtering devices, and discloses a plate-type filtering device for chemical production, which comprises a rack, a filtering unit for filtering chemicals is arranged on the rack, and a hydraulic push rod for driving the filtering unit to slide is arranged on the rack. The filtering unit comprises a thrust plate, a filtering plate and a pressing plate which are sequentially arranged on the rack in a sliding mode, the pressing plate is connected with the output end of the hydraulic push rod, sweeping assemblies for sweeping the filtering plate and the pressing plate are arranged on the filtering plate and the pressing plate, the sweeping assemblies rotate along with movement of the filtering plate, and a discharging unit for smashing chemicals is arranged on the rack. The multiple sets of filter plates and thrust plates are driven by the pressing plates to synchronously get close to or away from each other, the separation efficiency is high, under the cooperation of the sweeping unit, the filter plates are conveniently swept while being opened, the yield of chemicals is increased, and the filtering and production efficiency of the chemicals is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plate-type filtering devices, in particular to a plate-type filtering device used for chemical production. Background Art

[0002] Plate filter is a filtering device commonly used in chemical production, mainly used to separate solid particles and liquids to improve the purity and quality of products.

[0003] Existing plate filter devices for chemical production are usually composed of a series of filter plates, on which filter media are arranged. The filter media usually use different types of membrane materials according to the chemicals to be filtered. The filter plates are arranged on a frame structure, and the filter plates are brought close to each other by hydraulic devices 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 solid falls to the conveying component under the action of gravity for transportation. In the plate filter device for chemical production with this structure, after the filtration is completed, the filter plates are usually separated one by one by sliding a pull plate trolley set on the frame. This method of separating the filter plates one by one has a slow separation speed and low separation efficiency, which reduces the efficiency of chemical production. Moreover, after the filter plates are separated, the solid chemicals are usually caused to fall by gravity, which makes the chemicals easily adhere to the filter plates. The operator is also required to clean the filter plates, which reduces the chemical yield and the efficiency of chemical filtration 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 problems, the technical solution provided by the present invention is: a plate filter device for chemical production, comprising a frame, a filter unit for filtering chemicals is provided on the frame, a hydraulic push rod for driving the filter unit to slide is provided on the frame, the filter unit comprises a thrust plate, a filter plate and a pressing plate slidably arranged on the frame in sequence, the pressing plate is connected to the output end of the hydraulic push rod, a plurality of filter plates are arranged, the thrust plate, the filter plate and the pressing plate are all provided with filter pillars, the filter pillars are provided with filter connecting rods 1 and 2 that rotate in sequence from top to bottom, the two ends of the filter connecting rod 1 are respectively connected to the two adjacent groups of the filter connecting rods 2 for rotation, the filter plate and the pressing plate are both provided with cleaning components for cleaning the filter plate and the pressing plate, the cleaning components rotate with the movement of the filter plate, and a feeding unit for crushing chemicals is provided on the frame below the cleaning component.

[0006] As an improvement, the cleaning assembly includes a cleaning arm rotatably arranged on the filter pillar, a cleaning plate symmetrically arranged on the cleaning arm, a cleaning brush symmetrically arranged on the cleaning plate on one side, and a cleaning scraper symmetrically arranged on the cleaning plate on the other side, and a matching plate rotatably arranged on the filter pillar and rotating with the cleaning arm, and a matching brush is arranged on the matching plate.

[0007] As an improvement, the filter pillar is provided with a driving assembly for driving the cleaning arm to rotate, the driving assembly includes a positioning sleeve arranged on the filter pillar, a clockwork spring is arranged in the positioning sleeve, a connecting sleeve connected to one end of the clockwork spring is rotatably provided on the positioning sleeve, a driving gear connected to the cleaning arm is provided on the connecting sleeve, a mating gear meshing with the driving gear is rotatably provided on the filter pillar, 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 filter plate.

[0008] As an improvement, the filter plate and the clamping plate are both provided with stretching blocks that cooperate with the corresponding cleaning arms, the stretching blocks are provided with stretching ropes, the cleaning arm is slidably provided with a stretching slider connected to the stretching rope, the stretching slider is provided with a tension spring connected to the cleaning arm at the end away from the stretching rope, the stretching slider is symmetrically provided with vibration springs, the vibration springs are provided with a vibration ball head, and the cleaning plate is provided with a cleaning lever that cooperates with the vibration spring.

[0009] As an improvement, the unloading unit includes a unloading screen plate arranged on a frame, the frame is located below the unloading screen plate and is rotatably provided with a flap, a sliding block is slidably provided on the frame, the sliding block extends into one end of the frame and is provided with a positioning groove, a positioning slider is slidably provided in the positioning groove, and a rotating arm connected to the flap is provided on the positioning slider.

[0010] As an improvement, a material unloading chute is provided on the material unloading chute, a matching slider is slidably provided on the material unloading chute, a crushing frame matching with the material unloading sieve plate is provided on the matching slider, and two groups of crushing frames are alternately arranged, a bearing plate is provided on one side of the positioning chute, a connecting slide rod is slidably provided on the bearing plate, the connecting slide rod is located above the bearing plate and is sleeved with a connecting spring, a support plate is provided at the lower end of the connecting slide rod, and a connecting arm rotatably connected with the matching slider is rotatably provided on the support plate.

[0011] As an improvement, a sliding beam is provided on the frame, and supporting sliding blocks slidably connected to the sliding beam are provided on both sides of the filter plate and the pressing plate.

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

[0013] Compared with the prior art, the beneficial effect of the present invention is that: through the cooperation of the filter connecting rod 1 and the filter connecting rod 2 which is respectively rotatably connected to the two ends of the filter connecting rod 1, the hydraulic push rod can drive multiple groups of filter plates and thrust plates to synchronously approach or move away from each other through the clamping plate, thereby improving the separation speed of the multiple groups of filter plates, and the separation efficiency is high. With the cooperation of the cleaning unit, the cleaning operation of the filter plate can be easily completed while the filter plate is opened, thereby improving the yield of chemicals and the efficiency of chemical filtration and production. Specifically: 1. During the opening process of the filter plate, the connecting sleeve is driven by the driving rope to rotate along the positioning sleeve. At the same time, the spring is extended and stored. The connecting sleeve drives the cleaning arm to rotate through the driving gear connected to it, and the cleaning arm drives the cleaning scraper and the cleaning brush to rotate. Furthermore, the rotating driving gear drives the matching plate to rotate through the matching gear meshing with it, 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 scraping and brushing, so as to avoid the adhesion of chemicals on the filter plate. There is no need for operators to clean the filter plate, thereby improving the yield of chemicals and the efficiency of chemical filtration and production. 2. When the cleaning arm rotates, due to the limiting effect of the stretching block, the stretching rope and the tension spring, the stretching slider slides along the cleaning arm. When 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 relatively, the cleaning lever on the cleaning plate will continuously move the vibration spring, and the vibration ball head will vibrate, thereby causing the filter plate to vibrate slightly, which is convenient for shaking off the chemicals adhering to the filter plate and improving the cleaning effect of the filter plate; 3. When the sliding block moves downward, it drives the positioning slide to move synchronously. The positioning slide is driven by the positioning slider and the rotating arm to rotate the flap set on the frame to open, thereby realizing the unloading operation. In the process of the positioning slide moving downward, the load-bearing plate drives the connecting slide bar to slide downward synchronously. The connecting slide bar cooperates with the supporting plate and the connecting arm to slide along the unloading slide bar. The cooperating slide bar drives the two groups of crushing frames to slide, thereby crushing the chemicals on the unloading screen plate, which is convenient for the transportation of chemicals and improves the production efficiency of chemicals. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic structural diagram of a plate-type filtering device for chemical production.

[0015] Figure 2 It is an exploded view of a plate-type filtering device for chemical production according to the present invention.

[0016] Figure 3 It is a schematic structural diagram of a plate-type filtering device for chemical production according to the present invention with the closed component part removed.

[0017] Figure 4 The present invention is a schematic structural diagram of a filter component portion of a plate filter device for chemical production.

[0018] Figure 5 The present invention is a schematic structural diagram of a filter plate portion of a plate filter device for chemical production.

[0019] Figure 6 The present invention is a schematic structural diagram of a cleaning component portion of a plate-type filter device for chemical production.

[0020] Figure 7 The present invention is an exploded view of a cleaning component portion of a plate-type filter device for chemical production.

[0021] Figure 8 The present invention is a schematic structural diagram of a frame portion of a plate-type filter device for chemical production.

[0022] Fig. 9 The present invention is a cross-sectional view of a frame portion of a plate-type filtering device for chemical production.

[0023] Fig.10 It is a structural schematic diagram of a feeding unit of a plate-type filtering device for chemical production according to the present invention.

[0024] Fig.11 It is an exploded view of a feeding unit of a plate-type filtering device for chemical production according to the present invention.

[0025] As shown in the figure: 1. frame; 11. closing assembly; 111. upper cover plate; 112. side cover plate; 113. end cover plate; 12. pipeline assembly; 121. feed pipe; 122. filtrate pipe; 13. limit slide; 2. filter unit; 21. thrust plate; 22. filter plate; 23. clamping 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 tube; 2735. clamping column; 2736 , positioning sleeve; 2737, clockwork spring; 2738, connecting sleeve; 274, stretching block; 2741, stretching rope; 2742, tension spring; 2743, stretching 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, unloading unit; 31, unloading screen plate; 32, flap; 33, sliding block; 331, positioning slide; 332, positioning slider; 333, rotating arm; 334, bearing plate; 34, electric push rod; 35, connecting slide; 351, connecting spring; 352, support plate; 353, connecting arm; 354, matching slider; 355, crushing frame; 356, unloading slide. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 6 , Attachment Figure 8 With attached Fig.10 As shown, a plate filter device for chemical production includes a frame 1, on which a filter unit 2 for filtering chemicals is provided, and on which a hydraulic push rod 24 for driving the filter unit 2 to slide is provided, and the filter unit 2 includes a thrust plate 21, a filter plate 22 and a pressing plate 23 which are sequentially slidably arranged on the frame 1, the thrust plate 21 is fixedly connected to the frame 1, and the pressing plate 23 is connected to the output end of the hydraulic push rod 24, and a plurality of filter plates 22 are provided, and cleaning components 27 for cleaning the filter plates 22 and the pressing plates 23 are provided on the filter plates 22 and the pressing plates 23, and the cleaning components 27 rotate as the filter plates 22 move, and a feeding unit 3 for crushing chemicals is provided on the frame 1 below the cleaning components 27.

[0028] The frame 1 is connected to a side of the thrust plate 21 and is provided with a pipeline assembly 12, the pipeline assembly 12 includes a feed pipe 121 and a filtrate pipe 122, the thrust plate 21 and the filter plate 22 are provided with a feed through hole connected to the feed pipe 121, and the thrust plate 21 and the filter plate 22 are provided with a filtrate through hole connected to the filtrate pipe 122, which is the current common technology and will not be repeated here.

[0029] The working principle of the present invention is as follows: the hydraulic push rod 24 extends, and the hydraulic push rod 24 drives the multiple groups of 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 the two adjacent groups of filter plates 22. The chemicals to be filtered are input into each filter chamber through the feed pipe 121. The chemicals are trapped in the filter chamber and form a filter cake. The filtrate is discharged through the filtrate channel formed by the filtrate through holes on the multiple groups of filter plates 22 through the filtrate pipe 122. When the filter press is completed, the hydraulic push rod 24 is shortened and the multiple groups of filter plates 22 are driven away from the thrust plate 21 through the pressing plate 23. In this process, the cleaning component 27 works, and the cleaning component 27 cleans the chemicals adhered to the filter plate 22 to improve the yield of the chemicals. After the cleaning is completed, the unloading unit 3 is started to crush and discharge the chemicals, thereby completing the filtering operation of the chemicals.

[0030] Combined with Figure 2 , Attachment Figure 3 With attached Figure 4 As shown, the thrust plate 21, the filter plate 22 and the clamping plate 23 are all provided with filter pillars 28. The filter pillars 28 are provided with filter connecting rods 1 281 and filter connecting rods 282 which rotate in sequence from top to bottom. The two ends of the filter connecting rod 1 281 are respectively connected to the two adjacent groups of the filter connecting rods 282 for rotation. The filter connecting rods 1 281 and filter connecting rods 282 arranged on the thrust plate 21 and the clamping plate 23 have no connection relationship because they are far away from the filter plate 22, and thus the side structure is omitted.

[0031] The working principle of the pressing plate 23 driving the filter plate 22 to move is as follows: when the hydraulic push rod 24 drives the pressing plate 23 to move toward the thrust plate 21, the filter connecting rod 1 281 and the filter connecting rod 2 282 arranged on the pressing plate 23 drive the filter connecting rod 2 282 and the filter connecting rod 1 281 on the adjacent filter plate 22 to rotate synchronously, and so on, the filter connecting rod 1 281 and the filter connecting rod 2 282 on the filter plate 22 close to the thrust plate 21 respectively drive the filter connecting rod 2 282 and the filter connecting rod 1 282 on the thrust plate 21 to rotate synchronously. 1 rotates synchronously. Since the thrust plate 21 is fixedly connected to the frame 1, the thrust plate 21 and the plurality of filter plates 22 are moved toward each other and toward the pressing plate 23, thereby forming a filter chamber, which is convenient for filtering 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 the plurality of filter plates 22 are moved away from each other and toward the pressing plate 23, thereby opening the filter chamber, which is convenient for cleaning out the filter cake formed by the chemicals in the filter chamber.

[0032] Combined with Figure 4 , Attachment Figure 5 , Attachment Figure 6 With attached Figure 7 As shown, the cleaning assembly 27 includes a cleaning arm 271 rotatably arranged on the filter pillar 28, the cleaning arm 271 is symmetrically arranged, and a cleaning plate 2711 is symmetrically arranged on the cleaning arm 271, and a cleaning brush 2712 is symmetrically arranged on one side of the cleaning plate 2711, and the bristles of the cleaning brush 2712 on the outer side of the cleaning plate 2711 are longer than the bristles of the cleaning brush 2712 on the inner side of the cleaning plate 2711, and a cleaning scraper 2714 is symmetrically arranged on the cleaning plate 2711 on the other side, and a matching plate 272 that rotates with the cleaning arm 271 is rotatably arranged on the filter pillar 28, and a matching brush 2721 is arranged on the matching plate 272; The filter pillar 28 is provided with a driving assembly 273 for driving the cleaning arm 271 to rotate. The driving assembly 273 includes a positioning sleeve 2736 arranged on the filter pillar 28, a clamping column 2735 is arranged in the positioning sleeve 2736, a spring spring 2737 is arranged on the clamping column 2735, a connecting sleeve 2738 connected to one end of the spring spring 2737 is rotatably arranged on the positioning sleeve 2736, and a driving gear 2731 connected to the cleaning arm 271 is arranged on the connecting sleeve 2738. A mating gear 2732 meshing with the driving gear 2731 is rotatably provided on 8, and the mating gear 2732 is connected to the mating plate 272. A driving rope 2733 is wound on the connecting sleeve 2738, and one end of the driving rope 2733 is connected to the adjacent filter plate 22. The filter plate 22 and the clamping plate 23 are both provided with a guide tube 2734. A traction block 275 is provided on the filter plate 22, and the traction block 275 is provided with a traction sleeve 2751 that cooperates with the adjacent driving rope 2733.

[0033] The working principle of the cleaning assembly 27 is as follows: when two adjacent groups of filter plates 22 move away from each other, the filter plates 22 drive the driving rope 2733 to move through the traction block 275 and the traction sleeve 2751, and the driving rope 2733 drives the connecting sleeve 2738 to rotate, and the connecting sleeve 2738 drives the spring spring 2737 to rotate, and the spring spring 2737 accumulates force. At the same time, the connecting sleeve 2738 drives the driving gear 2731 connected thereto to rotate, and the driving gear 2731 rotates while driving the mating gear 2732 meshing therewith to rotate, and the driving gear 2731 rotates. 31 drives the cleaning arm 271 to rotate, the cleaning arm 271 drives the cleaning brush 2712 and the cleaning scraper 2714 to rotate, the matching gear 2732 drives the matching brush 2721 to rotate through the matching plate 272, the rotating cleaning brush 2712, the cleaning scraper 2714 and the matching brush 2721 clean the filter plate 22 by a combination of scraping and brushing, so as to prevent chemicals from adhering to the filter plate 22 and improve the yield of chemicals. At the same time, there is no need for operators to manually clean the filter plate 22, which improves the efficiency of chemical filtration and the production efficiency of chemicals.

[0034] Combined with Figure 4 , Attachment Figure 5 , Attachment Figure 6 With attached Figure 7 As shown, 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, and a stretching rope 2741 is provided on the stretching block 274. A stretching slider 2743 connected to the stretching rope 2741 is slidably provided on the cleaning arm 271, and the stretching slider 2743 is provided with a tension spring 2742 connected to the cleaning arm 271 at one end away from the stretching rope 2741. Vibration springs 2744 are symmetrically provided on the stretching slider 2743, and a vibration ball head 2745 is provided on the vibration spring 2744. A cleaning lever 2713 that cooperates with the vibration spring 2744 is provided on the cleaning plate 2711. The cleaning lever 2713 is an L-shaped structure, and a plurality of cleaning levers 2713 are equidistantly arranged along the linear direction of the cleaning plate 2711. A groove wheel that cooperates with the stretching rope 2741 is symmetrically rotated at the end of the cleaning arm 271.

[0035] The working principle of the vibration ball head 2745 movement is as follows: 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, the tension spring 2742 stretches, and the stretching slider 2743 drives the vibration ball head 2745 to slide synchronously through the vibration spring 2744. When the vibration spring 2744 contacts the cleaning lever 2713, the cleaning lever 2713 moves the vibration spring 2744, and the vibration The spring 2744 accumulates force through deformation. When the cleaning lever 2713 is separated from the vibration spring 2744, the vibration spring 2744 quickly returns to its original state and drives the vibration ball head 2745 to reset, thereby causing the vibration ball head 2745 to vibrate. Furthermore, the vibration ball head 2745 continuously hits 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 the surface, making it easier to collect the chemicals, avoiding the chemicals from adhering to the filter plate 22, while increasing the recovery rate of the chemicals and improving the filtering efficiency of the chemicals.

[0036] Combined with Figure 8 , Attachment Fig. 9 , Attachment Fig.10 With attached Fig.11 As shown, the unloading unit 3 includes an unloading screen plate 31 arranged on the frame 1, and the unloading screen plate 31 is provided with screen holes. The frame 1 is located below the unloading screen plate 31 and is rotatably provided with a flap 32, and the flap 32 is symmetrically arranged. A limiting slide groove 13 is provided in the frame 1, and a sliding block 33 is slidably provided in the limiting slide groove 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. The sliding block 33 extends into one end of the frame 1 and is provided with a positioning slide groove 331, and 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; The unloading screen plate 31 is provided with an unloading chute 356, on which a matching slider 354 is slidably provided, and on which a crushing frame 355 matching with the unloading screen plate 31 is provided on the matching slider 354. The two groups of crushing frames 355 are alternately arranged, and crushing columns are equidistantly provided on the crushing frame 355. The unloading screen plate 31 is provided with protrusions corresponding to the crushing columns. 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. The connecting slide rod 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 rod 35, and a connecting arm 353 rotatably connected with the matching slider 354 is rotatably provided on the supporting plate 352.

[0037] The working principle of the unloading unit 3 is as follows: the electric push rod 34 drives the sliding block 33 to slide along the limiting slide groove 13. When the sliding block 33 slides downward along the limiting slide groove 13, the sliding block 33 drives the positioning slide groove 331 to move downward synchronously. Since the flap 32 is rotatably arranged on the frame 1, the downwardly moving positioning slide groove 331 drives the flap 32 to rotate and open through the positioning slider 332 slidably arranged therein and the rotating arm 333, thereby realizing the unloading operation of the chemicals. Further, when the positioning slide groove 331 moves downward, the carrying plate 334 moves downward synchronously, and the carrying plate 334 drives the supporting plate 352 to move downward through the connecting slide rod 35. The supporting plate 352 drives the matching slider 354 to slide along the unloading slide groove 356 through the connecting arm 353 and with the cooperation of the unloading slide groove 356. The two groups of matching sliders 354 move away from each other, and the crushing frames 355 move away from each other, so that the chemicals are crushed with the cooperation of the unloading screen plate 31, which is convenient for transporting the chemicals.

[0038] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 With attached Figure 8 As shown, the frame 1 is provided with a sliding beam 26, which is symmetrically arranged on both sides of the frame 1, and both sides of the filter plate 22 and the pressing plate 23 are provided with supporting sliders 25 slidably connected to the sliding beam 26. The frame 1 is provided with a closing component 11 for closing the frame 1. The closing component 11 prevents materials from spilling and polluting the workplace during operation, thereby improving protection for operators. The closing component 11 includes an upper cover plate 111, a side cover plate 112 and an end cover plate 113, and the side cover plates 112 are symmetrically arranged on both sides of the frame 1.

[0039] In the specific implementation of the present invention, the frame 1 is arranged above the chemical conveying mechanism, the flap 32 is located 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, thus completing the placement of the present invention; During operation, the hydraulic push rod 24 is operated to extend, and the hydraulic push rod 24 drives the pressing plate 23 and the multiple groups of filter plates 22 to synchronously approach the thrust plate 21 through the multiple groups of filter connecting rods 1 281 and filter connecting rods 2 282. When the pressure reaches the set pressure value, the hydraulic push rod 24 stops extending. At this time, filter chambers are formed between the two adjacent groups of filter plates 22. Chemicals to be filtered are input into each filter chamber through the feed pipe 121. The chemicals are trapped in the filter chamber and form filter cakes. The filtrate is discharged through the filtrate channel formed by the filtrate through holes on the multiple groups of filter plates 22 through the filtrate pipe 122; 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. 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.

[0040] 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).

2. A plate filter device for chemical production according to claim 1, characterized in that: The cleaning assembly (27) comprises a cleaning arm (271) rotatably arranged on a filter pillar (28); a cleaning plate (2711) is symmetrically arranged on the cleaning arm (271); a cleaning brush (2712) is symmetrically arranged on one side of the cleaning plate (2711); a cleaning scraper (2714) is symmetrically arranged on the other side of the cleaning plate (2711); a matching plate (272) is rotatably arranged on the filter pillar (28) and rotates with the cleaning arm (271); and a matching brush (2721) is arranged on the matching plate (272).

3. A plate filter device for chemical production according to claim 2, characterized in that: The filter pillar (28) is provided with a driving assembly (273) for driving the cleaning arm (271) to rotate. The driving assembly (273) comprises a positioning sleeve (2736) arranged on the filter pillar (28), a spring spring (2737) being arranged in the positioning sleeve (2736), a connecting sleeve (2738) connected to one end of the spring spring (2737) being rotatably arranged on the positioning sleeve (2736), a driving gear (2731) connected to the cleaning arm (271) being arranged on the connecting sleeve (2738), a matching gear (2732) meshing with the driving gear (2731) being rotatably arranged on the filter pillar (28), 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).

4. A plate filter device for chemical production according to claim 2, 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).

5. The 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).

6. A plate filter device for chemical production according to claim 5, 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).

7. 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).

8. A plate filter device for chemical production according to any one of claims 1 to 7, 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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