Filter press with filtered water recovery function

By introducing a multi-stage filtration and water pumping system into the filter press, combined with a flip-top cover and observation window, the problem of inconvenient multi-stage filtration and recycling of filtered water is solved, achieving efficient water recycling and convenient equipment cleaning.

CN223959250UActive Publication Date: 2026-03-03HEBEI BINGCHEN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202520586438.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-03
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

Existing filter presses do not facilitate multi-layer filtration, the filtered water is not easy to recycle and reuse, and the internal structure of the filter is difficult to clean.

Method used

A filter press with water recovery function was designed, including a filter box, a water pump, a water pipe, an absorbent cotton sleeve, a protective cover, and a multi-layer filter structure. Through multi-stage filtration and pumping, the filter water can be centrally recovered and filtered multiple times. The flip-top cover and observation window facilitate cleaning.

Benefits of technology

It achieves multi-stage filtration and recycling of filtered water and convenient cleaning, reduces pipe blockage, and improves the utilization rate of filtered water and the ease of operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of filter presses, in particular to a filter press with a filtered water recycling function, which comprises a filter press main body and a filter box mounted on the side wall of the filter press main body, a plurality of connecting pipes are arranged at the top of the filter box close to the rear end, a top cover is arranged in a groove, a filter drawer is arranged in a slot, and a first filter screen is arranged at the bottom of the filter drawer. Filter cotton is arranged in the middle of the filter drawer; a water pumping pipe is arranged at a water pumping port of the water pump; according to the filter press with the filtered water recycling function, the filter press main body is arranged and is matched with a plurality of filter plates, so that solid and liquid are separated, the liquid enters a connecting and guiding pipe from a drainage pipe, a filter drawer is matched with filter cotton and a first filter screen to preliminarily filter and intercept, and filtered water recycled in a filter box is subjected to concentrated pumping matching under the matching of a water suction pump; the water pumping pipe is matched with the adsorption cotton sleeve to intercept and filter the pumped filtered water, and the protective cover is matched with the second filter screen to secondarily intercept and filter the filtered water entering the water pumping pipe, so that the influence that particle impurities block the pipeline is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of filter press technology, specifically a filter press with water recovery function. Background Technology

[0002] A filter press is a mechanical device that uses a special filter medium to apply pressure to a material, causing the liquid to seep out. It is a commonly used solid-liquid separation device.

[0003] The utility model with announcement number CN221950769U discloses a filter press with water filtration and recovery function, including a fixed frame. A rotating groove is opened on one side of the mounting block, and a sliding ball is embedded in the inner edge of the rotating groove. The mounting block is inserted and installed on the other side of the recovery chamber, and a valve is connected and installed at the lower center of the recovery chamber. A recovery water pipe is connected and installed at the lower end of the valve. The filter press plate has telescopic grooves on both the front and rear sides and the upper and lower ends, and a locking knob is spirally installed on the front edge of the telescopic groove. A limit guide plate is inserted and installed on the inner wall of the telescopic groove, and a roller is installed on one side of the limit guide plate.

[0004] The above technical solution uses a coarse filter tank for coarse filtration and a fine filter cartridge and a high-speed rotating motor for secondary centrifugal filtration. The filtered water can then be recycled and reused through a recycling pipe and valve, avoiding resource waste. The filter plates can be quickly disassembled and assembled through the extension and retraction of the limiting guide plate and the telescopic groove, making it more convenient to use. However, the filtered water from the filter plates of the filter press is not easy to be combined with multiple layers of filtration again, and it is not easy to recycle and reuse the filtered water. Furthermore, the internal structure of the filter is not easy to clean. Utility Model Content

[0005] The purpose of this invention is to provide a filter press with a water filtration and recovery function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A filter press with water recovery function includes a filter press body and a filter box installed on the side wall of the filter press body. A support plate is provided on the front end face of the filter press body near the bottom. The filter box is installed on the support plate. Several connecting pipes are provided on the top of the filter box near the rear end. A groove is opened on the top of the filter box. A through groove communicating with the interior is opened at the bottom of the groove. A top cover is provided in the groove. A slot is opened on the front end face of the filter box near the top. A filter drawer is provided in the slot. A first filter screen is provided at the bottom of the filter drawer. Filter cotton is provided in the middle of the filter drawer. A water pump is provided on the left end face of the filter box. A water pump is provided at the water pump port. The water pump extends into the interior of the filter box and has an absorbent cotton sleeve at its end.

[0008] Several filter plates are provided in the middle of the filter press body. The filter plates are engaged with the slide rods on the filter press body by hooks on the side walls. Each filter plate has a drain pipe near the bottom of its front end. The drain pipe is connected to the inlet pipe by a flexible hose.

[0009] Furthermore, the pallet is welded and fixed to the main body of the filter press, and symmetrical support columns are provided on the lower surface of the pallet near the front end. The top of the support columns is welded and fixed to the bottom of the pallet.

[0010] In this invention, the support column helps to lift the support plate and increase the stability of the support.

[0011] Specifically, the length of the outer wall of the filter box is adapted to the length of the outer wall of the tray. The filter box is fixedly connected to the tray by screws. An observation window is provided on the front face of the filter box near the bottom. A slag discharge pipe communicating with the interior is also provided on the front face of the filter box near the bottom. A sealing plug is provided at the end of the slag discharge pipe.

[0012] In this invention, the pallet supports the filter box and connects it to the main body of the filter press. The observation window is made of tempered glass, which helps outsiders to observe the internal condition in real time. The slag discharge pipe helps to discharge and collect the internal cleaning residue. The sealing plug blocks the slag discharge pipe, which helps to collect the internal filtrate. When the sealing plug is opened, it helps to discharge the internal cleaning wastewater.

[0013] It should be noted that the bottom of the connecting pipe is bonded and fixed to the filter box, and the inside of the connecting pipe is connected to the inside of the filter box. Each connecting pipe is equipped with a butterfly valve. The top of the connecting pipe is bonded and fixed to the hose, and the top of the hose is bonded and fixed to the bottom of the drain pipe.

[0014] In this invention, the cooperation of multiple connecting pipes facilitates the corresponding connection with the drain pipe on the filter plate, allowing the filtered water solution discharged from the filter plate to be connected. With the cooperation of the butterfly valve, the connecting pipes can be manually opened to achieve connection.

[0015] Furthermore, the width of the inner wall of the groove is adapted to the width of the outer wall of the top cover, the front end of the upper surface of the top cover is rotatably connected to the filter box via a hinge, and several handles are provided at the rear end of the upper surface of the top cover.

[0016] In this invention, the handle provides a point of leverage and, with the help of the hinge, facilitates the flipping and opening of the top cover, allowing for cleaning of the inside of the filter box through the through groove.

[0017] Specifically, sliders are provided on both sides of the filter drawer, and the sliders are bonded and fixed to the filter drawer. A groove is provided on the inner wall of the slot corresponding to the slider, and the width of the inner wall of the slot is adapted to the width of the outer wall of the filter drawer.

[0018] In this invention, the slider and the slide groove are connected and engaged to achieve stable connection between the filter drawer and the filter box, thereby increasing the stability of the connection installation.

[0019] It is worth noting that the outer wall of the filter drawer is provided with several handles, the first filter screen is fixedly connected to the filter drawer by screws, the width of the outer wall of the filter cotton is adapted to the width of the inner wall of the filter drawer, and the cross-section of the filter cotton is V-shaped.

[0020] In this invention, multiple handles provide leverage points, facilitating the removal or insertion of the filter drawer. With the help of filter cotton, the water introduced into the filter box undergoes initial filtration, and with the help of the first filter screen, it undergoes a second filtration.

[0021] Furthermore, the water pump is fixedly connected to the filter box by screws, the water pump's pumping port is glued and fixed to the top of the pumping pipe, the end of the pumping pipe is inserted and fitted with an absorbent cotton sleeve, a protective cover is provided inside the filter box near the pumping pipe, a second filter screen is provided on the outer wall of the protective cover, and positioning blocks are provided at the bottom of the filter box near the outer wall of the protective cover, the distance between the positioning blocks is adapted to the width of the outer wall of the protective cover, and the protective cover is fixedly connected to the filter box by screws.

[0022] In this invention, the water pump is connected to an external power source, the control switch is activated, and the water pumping pipe draws the filtered solution from the filter box for centralized recycling. With the help of the protective cover, the filtered solution is filtered and intercepted a second time, and with the help of the absorbent cotton sleeve, it is filtered and intercepted a third time. With the help of multiple positioning blocks, the protective cover is stably installed inside the filter box.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. This utility model separates solids and liquids by setting up a filter press body and cooperating with multiple filter plates. The liquid enters the inlet pipe from the drain pipe and then enters the filter box for recycling and filtration. The filter drawer is equipped with filter cotton and a first filter screen for initial filtration and interception. With the cooperation of a water pump, the recycled filtered water in the filter box is centrally pumped out. The water pumping pipe is equipped with an absorbent cotton sleeve to intercept and filter the pumped filtered water. The protective cover is equipped with a second filter screen to intercept and filter the filtered water entering the water pumping pipe for a second time, reducing the impact of particulate impurities clogging the pipe.

[0025] 2. This utility model features a flip-open top cover that allows water to enter the filter box through a channel for cleaning. The cleaned wastewater mixture is discharged through a slag discharge pipe. An observation window allows external personnel to observe the internal water collection status. The filter drawer, with its handle, is easy to manually push and pull out or install. A butterfly valve on the inlet pipe facilitates manual opening and closing, allowing filtered water to enter the filter box for collection and filtration. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the top cover of this utility model in the open state;

[0028] Figure 3 This is a schematic diagram of the main structure of the filter press of this utility model;

[0029] Figure 4 This is an exploded structural diagram of the filter box and top cover of this utility model;

[0030] Figure 5 This is an exploded view of the filter box and filter drawer of this utility model;

[0031] Figure 6 This is a schematic diagram of the cross-sectional structure of the filter box and the protective cover of this utility model.

[0032] The meanings of the labels in the diagram are as follows:

[0033] 1. Filter press body; 10. Pallet; 100. Support column;

[0034] 2. Filter plate; 20. Drain pipe;

[0035] 3. Filter box; 30. Groove; 300. Through groove; 31. Top cover; 310. Pull handle; 32. Slot; 320. Slide groove; 33. Filter drawer; 330. Slider; 331. Handle; 332. First filter screen; 333. Filter cotton; 34. Positioning block; 35. Protective cover; 350. Second filter screen; 36. Observation window; 37. Slag discharge pipe;

[0036] 4. Water pump; 40. Water pipe; 400. Absorbent cotton sleeve;

[0037] 5. Connecting pipe; 50. Butterfly valve. Detailed Implementation

[0038] 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.

[0039] Please see Figures 1-6 This embodiment provides a technical solution:

[0040] A filter press with water filtration and recovery function includes a filter press body 1 and a filter box 3 installed on the side wall of the filter press body 1. A support plate 10 is provided on the front end face of the filter press body 1 near the bottom. The support plate 10 is welded and fixed to the filter press body 1. Support columns 100 are symmetrically provided on the lower surface of the support plate 10 near the front end. The top of the support column 100 is welded and fixed to the bottom of the support plate 10.

[0041] In this invention, the support column 100 helps to lift the support plate 10 and increase the stability of the support.

[0042] Furthermore, the length of the outer wall of the filter box 3 is adapted to the length of the outer wall of the tray 10. The filter box 3 is fixedly connected to the tray 10 by screws. An observation window 36 is provided on the front surface of the filter box 3 near the bottom. A slag discharge pipe 37 communicating with the interior is also provided on the front surface of the filter box 3 near the bottom. A sealing plug is provided at the end of the slag discharge pipe 37.

[0043] In this utility model, with the cooperation of the pallet 10, the filter box 3 is lifted and connected to the filter press body 1. The observation window 36 is made of tempered glass, which helps outsiders to observe the internal condition in real time through the observation window 36. With the cooperation of the slag discharge pipe 37, it helps to discharge and collect the internal cleaning residue. The sealing plug blocks the slag discharge pipe 37, which helps to cooperate with the collection of internal filtrate. When the sealing plug is opened, it helps to discharge the internal cleaning wastewater.

[0044] It should be noted that the filter box 3 is installed above the tray 10. Several connecting pipes 5 are provided at the top of the filter box 3 near the rear end. A groove 30 is opened at the top of the filter box 3. A through groove 300 communicating with the interior is opened at the bottom of the groove 30. A top cover 31 is provided in the groove 30. The width of the inner wall of the groove 30 is adapted to the width of the outer wall of the top cover 31. The front end of the upper surface of the top cover 31 is rotatably connected to the filter box 3 by a hinge. Several handles 310 are provided at the rear end of the upper surface of the top cover 31.

[0045] In this utility model, the handle 310 provides a point of leverage and, with the cooperation of the hinge, facilitates the flipping and opening of the top cover 31, allowing for cleaning of the inside of the filter box 3 through the through groove 300.

[0046] Specifically, a slot 32 is provided near the top of the front end face of the filter box 3. A filter drawer 33 is provided in the slot 32. A slider 330 is provided on both sides of the filter drawer 33. The slider 330 is bonded and fixed to the filter drawer 33. A groove 320 is provided on the inner wall of the slot 32 at the corresponding position of the slider 330. The width of the inner wall of the slot 32 is adapted to the width of the outer wall of the filter drawer 33.

[0047] In this invention, the slider 330 and the slide groove 320 are inserted into each other to achieve stable insertion between the filter drawer 33 and the filter box 3, thereby increasing the stability of the insertion installation.

[0048] It is worth adding that the outer wall of the filter drawer 33 is provided with several handles 331, the first filter screen 332 is fixedly connected to the filter drawer 33 by screws, the width of the outer wall of the filter cotton 333 is adapted to the width of the inner wall of the filter drawer 33, and the cross-section of the filter cotton 333 is V-shaped.

[0049] In this utility model, multiple handles 331 provide a point of leverage, making it easy to take out or insert the filter drawer 33. With the help of the filter cotton 333, the water introduced into the filter box 3 is initially filtered, and with the help of the first filter screen 332, it is filtered again.

[0050] Furthermore, a first filter screen 332 is provided at the bottom of the filter drawer 33, and filter cotton 333 is provided in the middle of the filter drawer 33. A water pump 4 is provided on the left end face of the filter box 3. A water pump 40 is provided at the water pump port. The water pump 40 extends into the interior of the filter box 3 and is provided with an absorbent cotton sleeve 400 at its end. The water pump 4 is fixedly connected to the filter box 3 by screws. The water pump port of the water pump 4 is glued and fixed to the top of the water pump 40. The end of the water pump 40 is inserted and engaged with the absorbent cotton sleeve 400. A protective cover 35 is provided inside the filter box 3 near the water pump 40. A second filter screen 350 is provided on the outer wall of the protective cover 35. A positioning block 34 is provided at the bottom of the filter box 3 near the outer wall of the protective cover 35. The distance between the positioning blocks 34 is adapted to the width of the outer wall of the protective cover 35. The protective cover 35 is fixedly connected to the filter box 3 by screws.

[0051] In this utility model, the water pump 4 is connected to an external power source, the control switch is started, and the water pump pipe 40 draws the filtered solution from the filter box 3 for centralized recycling. With the cooperation of the protective cover 35, the filtered solution is filtered and intercepted a second time, and with the cooperation of the absorbent cotton sleeve 400, the filtration and interception is carried out a third time. With the cooperation of multiple positioning blocks 34, it helps the protective cover 35 to be stably installed inside the filter box 3.

[0052] In addition, several filter plates 2 are provided in the middle of the filter press body 1. The filter plates 2 are engaged with the slide rods on the filter press body 1 by means of side wall hooks. The front end face of the filter plates 2 is provided with drain pipes 20 near the bottom. The drain pipes 20 are connected to the connecting pipes 5 by means of flexible hoses.

[0053] Furthermore, the bottom of the connecting pipe 5 is bonded and fixed to the filter box 3, and the inside of the connecting pipe 5 is connected to the inside of the filter box 3. Each connecting pipe 5 is equipped with a butterfly valve 50. The top of the connecting pipe 5 is bonded and fixed to the hose, and the top of the hose is bonded and fixed to the bottom of the drain pipe 20.

[0054] In this invention, the cooperation of multiple connecting pipes 5 facilitates the corresponding connection with the drain pipe 20 on the filter plate 2, allowing the filtered and discharged aqueous solution in the filter plate 2 to be connected. With the cooperation of the butterfly valve 50, the butterfly valve 50 can be manually opened to achieve the connection of the connecting pipes 5.

[0055] When using the filter press with water recovery function in this embodiment, firstly, the filter plate 2 with drain pipe 20 is inserted into the filter press body 1. Then, the filter box 3 with water pump 4 is combined and installed with the tray 10. Then, the filter cotton 333 is installed in the filter drawer 33, and the filter drawer 33 is inserted into the slot 32. The slider 330 is inserted into the groove 32. The water pump 40 extends into the filter box 3 and the end is fitted with an absorbent cotton sleeve 400. Then, the protective cover 35 with second filter screen 350 is inserted into the area between the positioning block 34 in the filter box 3, and the water pump 40 fitted with absorbent cotton sleeve 400 is protected. Then, the top cover 31 is rotatably connected to the groove 30 through a hinge.

[0056] When the filter press body 1 is started, the solid-liquid mixture to be separated is drawn into the filter plate 2. Under the separation of the filter plate 2, the filtrate enters the inlet pipe 5 from the drain pipe 20. The corresponding butterfly valve 50 is opened, and the filtrate enters the filter drawer 33. After preliminary filtration by the filter cotton 333 and the first filter screen 332, it enters the bottom of the filter box 3 for collection. External personnel can observe the internal filtrate collection status through the observation window 36. The control switch on the water pump 4 is started. With the cooperation of the water pump pipe 40, the filtrate at the bottom of the filter box 3 is drawn. With the cooperation of the protective cover 35 with the second filter screen 350, the filtrate is filtered a second time. The end of the water pump pipe 40 is fitted with an absorbent cotton sleeve 400 for further filtration and interception. The filtered filtrate is recycled and reused by the water pump 4.

[0057] After prolonged use, the inside of the filter box 3 needs to be cleaned. The top cover 31 is opened with the help of the pull handle 310, and the inside of the filter box 3 is cleaned through the through groove 300. The residue mixture after cleaning is discharged through the slag discharge pipe 37. The overall assembly is convenient to install and facilitates the recycling of filtrate.

Claims

1. A filter press with water recovery function, comprising a filter press body (1) and a filter box (3) installed on the side wall of the filter press body (1), characterized in that: The filter press body (1) has a support plate (10) near the bottom of the front end face. The filter box (3) is installed above the support plate (10). The filter box (3) has several connecting pipes (5) near the rear end of the top. The filter box (3) has a groove (30) at the top. The groove (30) has a through groove (300) at the bottom that communicates with the interior. The groove (30) has a top cover (31). The filter box (3) has a slot (32) near the top of the front end face. The slot (32) has a filter drawer (33). The bottom of the filter drawer (33) has a first filter screen (332). The filter drawer (33) has filter cotton (333) in the middle. The filter box (33) has a water pump (4) on the left end face. The water pump (4) has a water pump pipe (40) at the water pump port. The water pump pipe (40) extends into the filter box (3) and has an adsorption cotton sleeve (400) at the end. The filter press body (1) has several filter plates (2) in the middle. The filter plates (2) are engaged with the slide rods on the filter press body (1) by hooks on the side walls. The front end face of each filter plate (2) is provided with a drain pipe (20) near the bottom. The drain pipe (20) is connected to the connecting pipe (5) by a hose.

2. The filter press with water recovery function according to claim 1, characterized in that: The pallet (10) is welded and fixed to the filter press body (1). Support columns (100) are symmetrically provided on the lower surface of the pallet (10) near the front end. The top of the support column (100) is welded and fixed to the bottom of the pallet (10).

3. The filter press with water recovery function according to claim 1, characterized in that: The length of the outer wall of the filter box (3) is adapted to the length of the outer wall of the tray (10). The filter box (3) is fixedly connected to the tray (10) by screws. An observation window (36) is provided on the front end face of the filter box (3) near the bottom. A slag discharge pipe (37) communicating with the interior is also provided on the front end face of the filter box (3) near the bottom. A sealing plug is provided at the end of the slag discharge pipe (37).

4. The filter press with water recovery function according to claim 1, characterized in that: The bottom of the connecting pipe (5) is bonded and fixed to the filter box (3), and the inside of the connecting pipe (5) is connected to the inside of the filter box (3). Each connecting pipe (5) is equipped with a butterfly valve (50). The top of the connecting pipe (5) is bonded and fixed to the hose, and the top of the hose is bonded and fixed to the bottom of the drain pipe (20).

5. The filter press with water recovery function according to claim 1, characterized in that: The width of the inner wall of the groove (30) is adapted to the width of the outer wall of the top cover (31). The front end of the upper surface of the top cover (31) is rotatably connected to the filter box (3) by a hinge. Several handles (310) are provided at the rear end of the upper surface of the top cover (31).

6. The filter press with water recovery function according to claim 1, characterized in that: The filter drawer (33) has sliders (330) on both sides of its side walls. The sliders (330) are glued and fixed to the filter drawer (33). The inner wall of the slot (32) is provided with a groove (320) corresponding to the slider (330). The width of the inner wall of the slot (32) is adapted to the width of the outer wall of the filter drawer (33).

7. The filter press with water recovery function according to claim 6, characterized in that: The filter drawer (33) has several handles (331) on its outer wall. The first filter screen (332) is fixedly connected to the filter drawer (33) by screws. The width of the outer wall of the filter cotton (333) is adapted to the width of the inner wall of the filter drawer (33). The cross-section of the filter cotton (333) is V-shaped.

8. The filter press with water recovery function according to claim 1, characterized in that: The water pump (4) is fixedly connected to the filter box (3) by screws. The water pump port of the water pump (4) is glued and fixed to the top of the water pump pipe (40). The end of the water pump pipe (40) is inserted and matched with the absorbent cotton sleeve (400). A protective cover (35) is provided inside the filter box (3) near the water pump pipe (40). A second filter screen (350) is provided on the outer wall of the protective cover (35). A positioning block (34) is provided at the bottom of the filter box (3) near the outer wall of the protective cover (35). The distance between the positioning blocks (34) is adapted to the width of the outer wall of the protective cover (35). The protective cover (35) is fixedly connected to the filter box (3) by screws.

Citation Information

Patent Citations

  • Filter press with filtered water recovery function

    CN221950769U