High efficiency filter press
By introducing a storage tank, cylinder, pressure plate, and scraping mechanism into the filter press, the problem of incomplete filter cake detachment is solved, enabling the effective addition of filter aids and the removal of impurities, thereby improving the integrity of the filter cake and filtration efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HONGSHENG CHEM IND
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-23
AI Technical Summary
The problem of incomplete filter cake detachment in existing filter presses, especially when no filter aid addition structure is configured.
A high-efficiency filter press was designed, comprising a storage tank, a cylinder, a pressure plate, a scraping mechanism, and a support mechanism. Through the addition of auxiliary filter aid and the design of the scraping mechanism, the filter aid is ensured to effectively enter the filter cake and prevent the filter cake from falling off.
It enables the effective addition of filter aids and the removal of residual impurities, avoiding the problem of incomplete filter cake detachment and improving the integrity of the filter cake and filtration efficiency.
Smart Images

Figure CN224388160U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter press technology, and in particular to a high-efficiency filter press. Background Technology
[0002] A filter press is a solid-liquid separation machine, mainly composed of filter plates, filter cloth, and a pressing device. During operation, the suspension is pumped into the filter chamber under pressure, solid particles are trapped to form a filter cake, and the liquid is discharged through the filter cloth. It is used for material filtration in chemical production, sludge dewatering in sewage treatment, liquid clarification in food processing, and slurry treatment in mining. It has the advantages of large processing capacity, high separation efficiency, stable and reliable operation, and simple maintenance, and is an indispensable filtration tool in modern industry.
[0003] A search revealed Chinese Patent Publication No. CN214286839U, which discloses a high-efficiency filter press for filtering lithium dihydrogen phosphate. The filter press includes a filter press body with a support frame. One end of the support frame has a thrust plate, and the other end has a pressing plate opposite to the thrust plate. Several filter plates are positioned between the thrust plate and the pressing plate. A hydraulic cylinder is located on the side of the pressing plate away from the filter plates. Alignment mechanisms are provided on both sides of the filter plates, each including positioning elements symmetrically arranged on the side walls of the filter plates. The side of the support frame that contacts the filter plates has a positioning recess for sliding the positioning elements. This application improves filtration efficiency; however, in practical use, the lack of a filter aid addition structure leads to incomplete filter cake removal. Therefore, this high-efficiency filter press is proposed to address this problem. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a high-efficiency filter press, which aims to improve the problem of incomplete filter cake removal in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency filter press, including a frame, a feed pipe fixedly connected to the top of the outer wall of the frame, an auxiliary unloading mechanism provided on the left side of the outer wall of the feed pipe, a scraping mechanism fixedly connected to the top of the outer wall of the frame, a fixing plate fixedly connected to the top of the outer wall of the frame, a pressing mechanism provided on the outer wall of the fixing plate, and a support mechanism provided on the right side of the outer wall of the frame;
[0006] The auxiliary unloading mechanism includes a storage tank. The left side of the outer wall of the storage tank is connected to the outer wall of the feed pipe. A cylinder is fixedly connected to the top of the outer wall of the storage tank. A pressure plate is fixedly connected to the bottom of the outer wall of the cylinder. A push plate is slidably connected to the inner wall of the storage tank. A screw is fixedly connected to the left side of the outer wall of the push plate. A screw is fixedly connected to the left side of the outer wall of the screw. A flow guiding component is provided on the outer wall of the storage tank.
[0007] The above technical solution includes an auxiliary unloading mechanism comprising a storage tank, the outer wall of which is connected to the outer wall of the feed pipe for assisting in the addition of filter aid; a cylinder is fixed to the outer wall of the top of the storage tank, and a pressure plate is connected to the outer wall of the bottom of the cylinder; the two work together to squeeze the filter aid into the device; a push plate is slidably installed on the inner wall of the storage tank to control the flow of filter aid and prevent leakage; a screw is fixed to the outer wall of the left side of the push plate, and a screw is connected to the outer wall of the left side of the screw for manually adjusting the position of the push plate; and a flow guiding unit is provided on the outer wall of the storage tank to guide the mixing of the medium.
[0008] As a further description of the above technical solution:
[0009] The scraping mechanism includes a fixed block, the bottom of the outer wall of the fixed block is fixedly connected to the top of the outer wall of the frame, a slide rod is slidably connected to the inner wall of the fixed block, a scraper is fixedly connected to the top of the outer wall of the slide rod, a scraper blade is fixedly connected to the right side of the outer wall of the scraper, and a spring is fixedly connected to the bottom of the outer wall of the scraper.
[0010] The above technical solution involves a scraping mechanism with a fixed block. The bottom outer wall of the fixed block is fixed to the top outer wall of the frame, providing basic support. A sliding rod is slidably connected to the inner wall of the fixed block. A scraper is fixed to the top outer wall of the sliding rod. A scraper blade is installed on the right outer wall of the scraper to remove residual impurities from the surface. A spring is fixed to the bottom outer wall of the scraper to achieve automatic return after operation.
[0011] As a further description of the above technical solution:
[0012] The scraping mechanism also includes a pull block, the top of the outer wall of which is fixedly connected to the bottom of the outer wall of the slide rod.
[0013] Through the above technical solution: the scraping mechanism also includes a pull block, the top outer wall of which is fixedly connected to the bottom outer wall of the slide rod, so that the slide rod can be manually pulled to assist the cleaning action.
[0014] As a further description of the above technical solution:
[0015] The clamping mechanism includes a hydraulic cylinder, the outer wall of which is fixedly connected to the outer wall of the fixed plate, and a clamping plate is fixedly connected to the left side of the outer wall of the hydraulic cylinder.
[0016] The above technical solution involves a clamping mechanism containing a hydraulic cylinder. The outer wall of the hydraulic cylinder is fixedly connected to the outer wall of a fixing plate, and the left outer wall of the hydraulic cylinder is connected to a clamping plate, which generates pressure to seal the filter element.
[0017] As a further description of the above technical solution:
[0018] The support mechanism includes a reinforcing plate, the outer wall of which is fixedly connected to the outer wall of the frame, and a support leg is fixedly connected to the bottom of the outer wall of the reinforcing plate.
[0019] The above technical solution involves a support mechanism with a reinforcing plate. The outer wall of the reinforcing plate is fixedly connected to the outer wall of the frame, and the bottom outer wall of the reinforcing plate is fixed with support legs to maintain the overall structural stability and prevent swaying.
[0020] As a further description of the above technical solution:
[0021] The flow guiding assembly includes a funnel, the bottom of the outer wall of the funnel is fixedly connected to the outer wall of the storage tank, and the left side of the outer wall of the feed pipe is connected to the flow guiding pipe.
[0022] The above technical solution involves a flow guide component containing a funnel. The bottom outer wall of the funnel is fixedly connected to the outer wall of the storage tank, serving as an inlet for adding filter aid. The left outer wall of the feed pipe is connected to the flow guide pipe, which introduces the filter aid into the material flow to mix the slurry.
[0023] As a further description of the above technical solution:
[0024] A positioning block is fixedly connected to the top of the outer wall of the frame, and a rail is fixedly connected to the inner wall of the positioning block.
[0025] The above technical solution involves fixing a positioning block to the outer wall of the top of the frame, fixing a rail rod to the inner wall of the positioning block, and using the rail rod to guide the movement direction and prevent deviation.
[0026] As a further description of the above technical solution:
[0027] The outer wall of the rail is slidably connected with multiple curing plates, and a filter frame is fixedly connected to each adjacent side of the multiple curing plates.
[0028] The above technical solution involves slidingly installing multiple curing plates on the outer wall of the rail, with a filter frame fixed on the adjacent side of each curing plate. The frame and plate work together to form a filter chamber to separate solids and liquids.
[0029] This utility model has the following beneficial effects:
[0030] 1. In this utility model, the storage tank is a place to temporarily store the filter aid. The cylinder drives the pressure plate to squeeze the filter aid into the device. The inner wall of the storage tank has a sliding push plate, which prevents the filter aid from leaking out of the funnel under the squeezing action. The funnel is the inlet for adding filter aid into the storage tank. The bottom of the outer wall of the funnel is fixed to the outer wall of the storage tank. The guide pipe is used to flow the filter aid from the storage tank to the feed pipe, and enter the device together with the slurry. The whole mechanism avoids the situation of incomplete filter cake detachment.
[0031] 2. In this utility model, the fixing block allows the slide bar to move longitudinally on it. The inner wall of the fixing block slides in cooperation with the slide bar. The top of the outer wall of the slide bar is fixedly connected to a scraper. The scraper is mainly used to fix the scraper. A spring is fixedly provided at the bottom of the outer wall of the scraper. The spring relies on its own pre-tightening action to ensure that the scraper can return to its original position when the hand is released after scraping off residual impurities. The pull block makes it more convenient to pull the slide bar, thus achieving effective cleaning of residual impurities. Attached Figure Description
[0032] Figure 1 This is a perspective view of a high-efficiency filter press proposed in this utility model;
[0033] Figure 2 This is a front view of a high-efficiency filter press proposed in this utility model;
[0034] Figure 3 This is a top view of a high-efficiency filter press proposed in this utility model;
[0035] Figure 4 This is a side view of a high-efficiency filter press proposed in this utility model;
[0036] Figure 5 This is a partial cross-sectional view of a high-efficiency filter press proposed in this utility model.
[0037] Legend:
[0038] 1. Frame; 2. Feed pipe; 3. Auxiliary unloading mechanism; 301. Storage tank; 302. Cylinder; 303. Pressure plate; 304. Button; 305. Screw; 306. Push plate; 307. Flow guiding assembly; 3071. Funnel; 3072. Flow guiding pipe; 4. Scraping mechanism; 401. Fixing block; 402. Slide rod; 403. Spring; 404. Scraper; 405. Scraper blade; 406. Pulling block; 5. Fixing plate; 6. Pressing mechanism; 601. Hydraulic cylinder; 602. Pressing plate; 7. Support mechanism; 701. Reinforcing plate; 702. Support leg; 8. Curing plate; 9. Filter frame; 10. Positioning block; 11. Rail rod. Detailed Implementation
[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0040] Reference Figure 1 , Figure 2 and Figure 5This utility model provides an embodiment of a high-efficiency filter press, including a frame 1, which provides structural support and load-bearing capacity for the entire device, and is equipped with a clamping device to seal the filter plates and frames. A feed pipe 2 is fixedly connected to the top of the outer wall of the frame 1, which transports the slurry to be filtered into the channel inside the filtration area. An auxiliary unloading mechanism 3 is provided on the left side of the outer wall of the feed pipe 2. A scraping mechanism 4 is fixedly connected to the top of the outer wall of the frame 1. A fixing plate 5 is fixedly connected to the top of the outer wall of the frame 1. A clamping mechanism 6 is provided on the outer wall of the fixing plate 5, and the clamping mechanism 6 includes a hydraulic cylinder 601. It is the power source of the pressing mechanism 6. The outer wall of the hydraulic cylinder 601 is fixedly connected to the outer wall of the fixed plate 5. The left side of the outer wall of the hydraulic cylinder 601 is fixedly connected to the pressing plate 602, which is used to transmit the pressure of the hydraulic cylinder 601 to the filter frame 9. The right side of the frame 1 is provided with a support mechanism 7. The support mechanism 7 includes a reinforcing plate 701, which is used to support the hydraulic cylinder 601 and ensure its stable operation. The outer wall of the reinforcing plate 701 is fixedly connected to the outer wall of the frame 1. The bottom of the outer wall of the reinforcing plate 701 is fixedly connected to the support leg 702, which is used to support the reinforcing plate 701.
[0041] The auxiliary unloading mechanism 3 includes a storage tank 301, which is a place to temporarily store the filter aid. The left side of the outer wall of the storage tank 301 is connected to the outer wall of the feed pipe 2. A cylinder 302 is fixedly connected to the top of the outer wall of the storage tank 301, and a pressure plate 303 is fixedly connected to the bottom of the outer wall of the cylinder 302. The cylinder 302 and the pressure plate 303 work together to squeeze the filter aid into the device. A push plate 306 is slidably connected to the inner wall of the storage tank 301, which is used to prevent the filter aid from overflowing through the funnel 3071 under the extrusion state. A screw 305 is fixedly connected to the left side of the outer wall of the push plate 306. A screw 304 is fixedly connected to the left side of the outer wall of the screw 305. The screw 305 and the screw 304 are used to adjust the opening and closing of the push plate 306. A flow guiding component 307 is provided on the outer wall of the storage tank 301. The flow guiding component 307 includes a funnel 3071, which is used to add filter aid into the storage tank 301. The bottom of the outer wall of the funnel 3071 is fixedly connected to the outer wall of the storage tank 301. A flow guiding pipe 3072 is connected to the left side of the outer wall of the feed pipe 2, through which the filter aid flows from the storage tank 301 to the feed pipe 2 and flows into the device together with the slurry.
[0042] Specifically, frame 1 provides support and bears the load for the entire device. A clamping component is installed on it to seal the filter plates and frames. A feed pipe 2 is connected and fixed to the top of the outer wall of frame 1. This pipe is responsible for feeding the slurry to be filtered into the internal filtration area. An auxiliary unloading mechanism 3 is located on the left side of the outer wall of feed pipe 2. A scraping mechanism 4 is also connected and fixed to the top of the outer wall of frame 1. A fixing plate 5 is also fixed to the top of the outer wall of frame 1. A clamping mechanism 6 is arranged on the outer wall of fixing plate 5. The clamping mechanism 6 is composed of a hydraulic cylinder 601, which is a clamping machine. The power source of structure 6 is the hydraulic cylinder 601, whose outer wall is fixed to the outer wall of the fixed plate 5. A pressure plate 602 is connected and fixed to the left side of the outer wall of the hydraulic cylinder 601, transmitting the pressure from the hydraulic cylinder 601 to the filter frame 9. A support mechanism 7 is installed on the right side of the outer wall of the frame 1. The support mechanism 7 includes a reinforcing plate 701, which supports the hydraulic cylinder 601 to ensure its stable operation. The outer wall of the reinforcing plate 701 is fixed to the outer wall of the frame 1. A support leg 702 is fixed to the bottom of the outer wall of the reinforcing plate 701 to support the reinforcing plate 701. The unloading mechanism 3 includes a storage tank 301, which is a temporary storage place for the filter aid. The left side of the outer wall of the storage tank 301 is connected to the outer wall of the feed pipe 2. A cylinder 302 is fixed to the top of the outer wall of the storage tank 301, and a pressure plate 303 is fixed to the bottom of the outer wall of the cylinder 302. The cylinder 302 drives the pressure plate 303 to operate, together squeezing the filter aid into the device. The inner wall of the storage tank 301 has a sliding push plate 306, which prevents the filter aid from leaking out of the funnel 3071 under the squeezing action. A screw 305 is fixed to the left side of the outer wall of the push plate 306. A knob 304 is fixed to the left side of the outer wall of the screw 305. Rotating the knob 304 drives the screw 305 to adjust the opening and closing degree of the push plate 306. The outer wall of the storage tank 301 is provided with a flow guiding component 307, which contains a funnel 3071, which is the inlet for adding filter aid into the storage tank 301. The bottom of the outer wall of the funnel 3071 is fixed to the outer wall of the storage tank 301. The left side of the outer wall of the feed pipe 2 is connected to the flow guiding pipe 3072. The filter aid is flowed from the storage tank 301 to the feed pipe 2 through this pipe and enters the device together with the slurry.
[0043] Reference Figure 1 , Figure 3 and Figure 5The scraping mechanism 4 includes a fixed block 401 for the slide rod 402 to move longitudinally thereon. The bottom of the outer wall of the fixed block 401 is fixedly connected to the top of the outer wall of the frame 1. The inner wall of the fixed block 401 is slidably connected to the slide rod 402. The top of the outer wall of the slide rod 402 is fixedly connected to a scraper 404 for fixing a scraper 405. The right side of the outer wall of the scraper 404 is fixedly connected to the scraper 405. The bottom of the outer wall of the scraper 404 is fixedly connected to a spring 403. The spring 403, through its own pre-tightening force, enables the scraper 405 to automatically reset after being released from the scraper to remove residual impurities. The scraping mechanism 4 also includes a pull block 406, which facilitates the pulling of the slide rod 402. The top of the outer wall of the pull block 406 is fixedly connected to the bottom of the outer wall of the slide rod 402.
[0044] Specifically, the scraping mechanism 4 includes a fixing block 401, which allows the slide bar 402 to move longitudinally on it. The bottom of the outer wall of the fixing block 401 is fixed to the top area of the outer wall of the frame 1. The inner wall of the fixing block 401 slides in cooperation with the slide bar 402. The top of the outer wall of the slide bar 402 is fixedly connected to a scraper 404, which is mainly used to fix the scraper 405. The scraper 405 is connected to the right side of the outer wall of the scraper 404. A spring 403 is fixedly provided at the bottom of the outer wall of the scraper 404. The spring 403 relies on its own pre-tightening action to ensure that the scraper 405 can return to its original position when the hand is released after scraping off residual impurities. The scraping mechanism 4 also includes a pull block 406, which makes it more convenient to pull the slide bar 402. The top of the outer wall of the pull block 406 is fixedly connected to the bottom of the outer wall of the slide bar 402.
[0045] Reference Figure 1 , Figure 2 and Figure 3 A positioning block 10 is fixedly connected to the top of the outer wall of the frame 1, which is used to improve the running stability of the rail rod 11. The rail rod 11 is fixedly connected to the inner wall of the positioning block 10, which provides guidance for the curing plate 8 and avoids deviation. Multiple curing plates 8 are slidably connected to the outer wall of the rail rod 11. Filter frames 9 are fixedly connected to adjacent sides of multiple curing plates 8. The filter plates cooperate to form a space to accommodate the slurry to be filtered and to achieve solid-liquid separation.
[0046] Specifically, a positioning block 10 is fixed to the top of the outer wall of the frame 1. The positioning block 10 keeps the rail rod 11 running smoothly. The rail rod 11 is fixedly installed on the inner wall of the positioning block 10. The rail rod 11 guides the movement direction of the curing plate 8 and ensures the normal movement of the curing plate 8. Several curing plates 8 are slidably connected to the outer wall of the rail rod 11. A filter frame 9 is fixedly connected to the adjacent side of each curing plate 8. The filter frame 9 and the filter plate together form an area to accommodate the slurry to be filtered. This area completes the solid-liquid separation task.
[0047] Working principle: First, the storage tank 301 is a temporary storage location for the filter aid. The cylinder 302 drives the pressure plate 303 to work together to squeeze the filter aid into the device. The inner wall of the storage tank 301 is equipped with a sliding push plate 306, which prevents the filter aid from leaking out of the funnel 3071 under the squeezing action. The funnel 3071 is the inlet for adding filter aid into the storage tank 301. The bottom of the outer wall of the funnel 3071 is fixedly connected to the outer wall of the storage tank 301. The guide pipe 3072 uses this pipe to flow the filter aid from the storage tank 301 to the feed pipe 2. The filter aid enters the device along with the slurry. The entire structure effectively prevents the problem of incomplete filter cake detachment.
[0048] Furthermore, the fixing block 401 facilitates the longitudinal movement of the slide bar 402. The inner wall of the fixing block 401 slides in conjunction with the slide bar 402. The top of the outer wall of the slide bar 402 is fixedly connected to the scraper 404, which is used to fix the scraper 405. A spring 403 is fixedly provided at the bottom of the outer wall of the scraper 404. The spring 403 relies on pre-tightening to automatically return to its original position after the scraper 405 releases its grip after removing residual impurities. The pull block 406 facilitates the ease of pulling the slide bar 402. Through this structural arrangement, residual impurities are effectively cleaned.
[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-efficiency filter press, comprising a frame (1), characterized in that: A feed pipe (2) is fixedly connected to the top of the outer wall of the frame (1). An auxiliary unloading mechanism (3) is provided on the left side of the outer wall of the feed pipe (2). A scraping mechanism (4) is fixedly connected to the top of the outer wall of the frame (1). A fixing plate (5) is fixedly connected to the top of the outer wall of the frame (1). A pressing mechanism (6) is provided on the outer wall of the fixing plate (5). A support mechanism (7) is provided on the right side of the outer wall of the frame (1). The auxiliary unloading mechanism (3) includes a storage tank (301). The outer left side of the storage tank (301) is connected to the outer wall of the feed pipe (2). A cylinder (302) is fixedly connected to the top of the outer wall of the storage tank (301). A pressure plate (303) is fixedly connected to the bottom of the outer wall of the cylinder (302). A push plate (306) is slidably connected to the inner wall of the storage tank (301). A screw (305) is fixedly connected to the left side of the outer wall of the push plate (306). A screw (304) is fixedly connected to the left side of the outer wall of the screw (305). A flow guiding component (307) is provided on the outer wall of the storage tank (301).
2. The high-efficiency filter press according to claim 1, characterized in that: The scraping mechanism (4) includes a fixed block (401), the bottom of the outer wall of the fixed block (401) is fixedly connected to the top of the outer wall of the frame (1), the inner wall of the fixed block (401) is slidably connected to a slide rod (402), the top of the outer wall of the slide rod (402) is fixedly connected to a scraper (404), the right side of the outer wall of the scraper (404) is fixedly connected to a scraper blade (405), and the bottom of the outer wall of the scraper (404) is fixedly connected to a spring (403).
3. The high-efficiency filter press according to claim 1, characterized in that: The scraping mechanism (4) also includes a pull block (406), the top of the outer wall of the pull block (406) being fixedly connected to the bottom of the outer wall of the slide rod (402).
4. A high-efficiency filter press according to claim 1, characterized in that: The clamping mechanism (6) includes a hydraulic cylinder (601), the outer wall of which is fixedly connected to the outer wall of the fixing plate (5), and a clamping plate (602) is fixedly connected to the left side of the outer wall of the hydraulic cylinder (601).
5. A high-efficiency filter press according to claim 1, characterized in that: The support mechanism (7) includes a reinforcing plate (701), the outer wall of which is fixedly connected to the outer wall of the frame (1), and a support leg (702) is fixedly connected to the bottom of the outer wall of the reinforcing plate (701).
6. A high-efficiency filter press according to claim 1, characterized in that: The flow guiding component (307) includes a funnel (3071), the bottom of the outer wall of the funnel (3071) is fixedly connected to the outer wall of the storage tank (301), and the left side of the outer wall of the feed pipe (2) is connected to the flow guiding pipe (3072).
7. A high-efficiency filter press according to claim 1, characterized in that: A positioning block (10) is fixedly connected to the top of the outer wall of the frame (1), and a rail rod (11) is fixedly connected to the inner wall of the positioning block (10).
8. A high-efficiency filter press according to claim 7, characterized in that: The outer wall of the rail (11) is slidably connected with multiple curing plates (8), and a filter frame (9) is fixedly connected to each adjacent side of the multiple curing plates (8).