Diaphragm filter pressing plate

Abstract

The utility model relates to the technical field of filter pressing plates, in particular to a diaphragm filter pressing plate which comprises a plate body, a plurality of springs arranged in a sludge storage tank, diaphragm plate sheets arranged in the sludge storage tank, a plurality of water filtering holes arranged on the inner wall of the sludge storage tank close to the edge of the outer wall, and a liquid discharging pipe arranged on the outer wall of the plate body close to the bottom and communicated with the inside of a water storage layer. Liquid inlets are formed in the two side faces, close to the middle of the top, of the plate body, a sealing strip is arranged on one side face of the plate body, and an annular groove is formed in the position, corresponding to the sealing strip, of the other side face of the plate body. According to the diaphragm filter pressing plate, a plurality of springs are arranged in a mud storage tank and are bonded and matched with a diaphragm plate sheet with bulges, when the diaphragm plate sheet moves in the mud storage tank and a plurality of plate bodies are tightly attached, solid-liquid separation is carried out, internal materials are extruded to increase the solid content, and when the plate bodies are mutually separated, the diaphragm plate sheet moves to quickly push and discharge solids; the sealing strips are matched with the annular grooves in an inserted mode, two adjacent plate bodies are tightly connected in an inserted mode, and the influence of gap liquid leakage is reduced.

Description

Technical Field

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

[0002] In the process of industrial wastewater and sewage treatment, sludge deep treatment is an important part of the sludge treatment process. The commonly used sludge thickening and dewatering equipment is the diaphragm filter press. The filter plate in the diaphragm filter press includes a core plate, an outer frame, a filter membrane, and a filter cloth. The core plate has through holes in the middle, and the outer frame is fixedly installed at the edge of the core plate.

[0003] The utility model with announcement number CN221332929U discloses a high-pressure pressing diaphragm filter plate, including a diaphragm filter plate body and symmetrically installed spiral guide arms on both outer walls of the diaphragm filter plate body. The front and rear surfaces of the diaphragm filter plate body are sealed with diaphragm plates. A mud storage tank is provided on the outer wall of the diaphragm filter plate body on one side of the diaphragm plate membrane. A central upright frame is installed at the center of the interior of the diaphragm filter plate body. Several equidistant rectangular through slots are provided on both outer walls of the central upright frame.

[0004] The above technical solution uses an alternating double-sided striking structure to further strike the diaphragm plate membrane to cause vibration and deformation. Through electric striking, it can act quickly and evenly on the outer surface of the diaphragm plate membrane, quickly knocking off the filter cake waste, thereby causing the filter material attached to the diaphragm plate membrane to fall off further. However, the overall structure is complicated, which increases the manufacturing cost. It is not easy to quickly discharge the waste on both sides of the diaphragm plate, and the combination and insertion installation between two adjacent filter plates is not tight enough. Utility Model Content

[0005] The purpose of this invention is to provide a diaphragm filter press 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 diaphragm filter press includes a plate body with sludge storage grooves on both sides of the plate body. Several springs are installed in each sludge storage groove. A diaphragm plate is installed in each sludge storage groove. Several protrusions are installed on the outer surface of each diaphragm plate. Slider blocks are installed at both ends of each diaphragm plate. Sliding grooves are installed in the sludge storage grooves corresponding to the sliders. Several water-filtering holes are installed on the inner wall of the sludge storage grooves near the outer edge. A water storage layer is installed inside the plate body, and the water-filtering holes communicate with the interior of the water storage layer. A drain pipe communicating with the interior of the water storage layer is installed on the outer wall of the plate body near the bottom. Liquid inlets are installed on both sides of the plate body near the top center, and the bottom of each liquid inlet communicates with the interior of the sludge storage grooves near both ends. A sealing strip is installed on one side of the plate body, and an annular groove is installed on the other side of the plate body corresponding to the sealing strip.

[0008] Furthermore, the width of the inner wall of the sludge storage tank is adapted to the width of the outer wall of the diaphragm plate, the protrusion and the diaphragm plate are integrally formed, the width of the outer wall of the protrusion is adapted to the width of the inner wall of the chute, and the outer wall surface of the diaphragm plate is flush with the inner surface of the filter hole.

[0009] In this invention, the space between the outer wall of the diaphragm plate and the sludge storage tank is used to store sludge blocks after filtration. With the cooperation of multiple protrusions, the contact area is increased, which helps the sludge to be spread evenly on the outer wall of the diaphragm plate. With the cooperation of multiple filtration holes, it helps the internal filtration water to enter the water storage layer and continuously and fully drain water.

[0010] Specifically, the springs are evenly spaced, and one end of the spring is bonded and fixed to the bottom of the mud storage tank, while the other end of the spring is bonded and fixed to the inner side of the diaphragm plate. The slider and the diaphragm plate are integrally formed, and the width of the outer wall of the slider is adapted to the width of the inner wall of the groove.

[0011] In this invention, the spring has elasticity. When the amount of sludge mixture entering the outer wall of the diaphragm plate increases and the two adjacent plates are tightly fitted together, the spring is compressed and contracted, increasing the storage capacity. When sludge needs to be discharged, the two adjacent plates separate, and the spring needs to return to its initial position to push the diaphragm plate, thereby discharging the sludge from the outer wall of the diaphragm plate. The slider and the slidable groove are slidably connected, which helps the diaphragm plate move horizontally and stably.

[0012] It should be noted that the sealing strip is U-shaped, and the sealing strip is bonded and fixed to the plate. The width of the inner wall of the annular groove is adapted to the width of the outer wall of the sealing strip. Adjacent plates are connected by the sealing strip and the annular groove.

[0013] In this invention, the sealing strip and the annular groove are interlocked to achieve a tight fit between two adjacent plates, reducing leakage from gaps that could affect the water collection and filtration process, and also facilitating the stable assembly and installation of the two adjacent plates.

[0014] Furthermore, the drain pipe is welded and fixed to the plate body, the interior of the drain pipe is interconnected with the interior of the water storage layer, and a butterfly valve is provided at the end of the drain pipe, which is fixedly connected to the drain pipe by screws.

[0015] In this invention, a butterfly valve is fitted onto the drain pipe. Manually opening the butterfly valve helps to centrally discharge the filtered water from the internal filtration system.

[0016] Specifically, hooks are provided on both sides of the plate near the top. The hooks are U-shaped and one side of the hook is welded to the outer wall of the plate.

[0017] In this invention, the cooperation of the two hooks helps the plate body to be properly engaged with the slide bar on the filter press, increasing the stability of the installation.

[0018] In addition, the top of the plate is symmetrically provided with lifting lugs, which are ring-shaped and are integrally formed with the plate.

[0019] In this invention, the two lifting lugs work together to provide a point of leverage, making it convenient to place or remove the plate vertically from above the filter press.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This utility model uses multiple springs in a mud storage tank, which are bonded to a diaphragm plate with protrusions. The diaphragm plate moves in the mud storage tank. When multiple plates are tightly attached, solid-liquid separation is performed. The internal material is squeezed, increasing the solid content. When the plates separate from each other, the diaphragm plate moves to quickly push the solid out. The sealing strip is inserted into the annular groove to achieve a tight fit between two adjacent plates, reducing the impact of leakage from gaps and facilitating rapid bonding and assembly.

[0022] 2. This utility model, by setting a slider and a sliding groove to slide together, facilitates the stable horizontal movement of the diaphragm plates. With the help of the liquid inlet, it helps to continuously add the mixed liquid from the top. With the help of the hook, it is convenient to place the plates on the filter press in sequence. With the help of the two lifting lugs, it helps to place or remove the plates vertically. The overall combination structure is simple, the construction cost is low, and it is easy to operate and use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the splicing and assembly structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall framework of this utility model;

[0025] Figure 3 This is a schematic diagram of the combined structure of the plate body and the diaphragm plate of this utility model;

[0026] Figure 4 This is a schematic diagram of the plate frame structure of this utility model;

[0027] Figure 5 This is a schematic cross-sectional view of the overall structure of this utility model.

[0028] The meanings of the labels in the diagram are as follows:

[0029] 1. Plate; 10. Mud storage tank; 100. Spring; 101. Slide groove; 11. Liquid inlet; 12. Filter hole; 13. Drain pipe; 130. Butterfly valve; 14. Sealing strip; 15. Annular groove; 16. Water storage layer;

[0030] 2. Diaphragm plate; 20. Protrusion; 21. Sliding block;

[0031] 3. Hooks;

[0032] 4. Hanging lugs. Detailed Implementation

[0033] 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.

[0034] Please see Figures 1-5 This embodiment provides a technical solution:

[0035] A diaphragm filter press includes a plate body 1, with sludge storage grooves 10 on both sides of the plate body 1. Several springs 100 are provided in the sludge storage grooves 10, and diaphragm plates 2 are provided in each sludge storage groove 10. Several protrusions 20 are provided on the outer side of each diaphragm plate 2. Slider blocks 21 are provided at both the upper and lower ends of each diaphragm plate 2. Sliding grooves 101 are provided in the sludge storage grooves 10 corresponding to the sliders 21. The springs 100 are evenly spaced, with one end of each spring 100 bonded to the bottom of the sludge storage groove 10 and the other end bonded to the inner side of the diaphragm plate 2. The sliders 21 and diaphragm plate 2 are integrally formed, and the width of the outer wall of the slider 21 is adapted to the width of the inner wall of the sliding groove 101.

[0036] In this invention, the spring 100 has elasticity. When the amount of sludge mixture entering the outer wall of the diaphragm plate 2 increases and the two adjacent plates 1 are tightly fitted together, the spring 100 is compressed and contracted, increasing the storage capacity. When sludge needs to be discharged, the two adjacent plates 1 separate, and the spring 100 needs to return to its initial position to push the diaphragm plate 2, thereby discharging the sludge from the outer wall of the diaphragm plate 2. The slider 21 is slidably connected to the groove 101, which helps the diaphragm plate 2 to move horizontally and stably.

[0037] It should be noted that several filter holes 12 are provided on the inner wall of the mud storage tank 10 near the edge of the outer wall. A water storage layer 16 is provided inside the plate 1. The filter holes 12 are all connected to the inside of the water storage layer 16. The width of the inner wall of the mud storage tank 10 is adapted to the width of the outer wall of the diaphragm plate 2. The protrusion 20 and the diaphragm plate 2 are integrally formed. The width of the outer wall of the protrusion 20 is adapted to the width of the inner wall of the chute 101. The outer wall surface of the diaphragm plate 2 is flush with the inner surface of the filter holes 12.

[0038] In this invention, the space between the outer wall of the diaphragm plate 2 and the sludge storage tank 10 is used to store sludge blocks after filtration. With the cooperation of multiple protrusions 20, the contact area is increased, which helps the sludge to be spread evenly on the outer wall of the diaphragm plate 2. With the cooperation of multiple filter holes 12, it helps the internal filtered water to enter the water storage layer 16 and continuously and fully drain the water.

[0039] Furthermore, a drain pipe 13 is provided on the outer wall of the plate 1 near the bottom, which is connected to the interior of the water storage layer 16. The drain pipe 13 is welded and fixed to the plate 1. The interior of the drain pipe 13 is connected to the interior of the water storage layer 16. A butterfly valve 130 is provided at the end of the drain pipe 13. The butterfly valve 130 is fixedly connected to the drain pipe 13 by screws.

[0040] In this invention, a butterfly valve 130 is fitted onto the drain pipe 13. Manually opening the butterfly valve 130 helps to centrally discharge the filtered water from the internal filtration system.

[0041] Specifically, liquid inlets 11 are provided on both sides of the plate 1 near the top center. The bottom of the liquid inlets 11 near both ends is connected to the inside of the mud storage tank 10. A sealing strip 14 is provided on one side of the plate 1, and an annular groove 15 is provided on the other side of the plate 1 at the position corresponding to the sealing strip 14.

[0042] Secondly, the sealing strip 14 is in the shape of a U-shape. The sealing strip 14 is bonded and fixed to the plate 1. The width of the inner wall of the annular groove 15 is adapted to the width of the outer wall of the sealing strip 14. Two adjacent plates 1 are connected by the sealing strip 14 and the annular groove 15.

[0043] In this utility model, the sealing strip 14 and the annular groove 15 are inserted and matched to achieve a tight fit between two adjacent plates 1, reduce the impact of leakage from gaps on the water collection and filtration, and help to stably assemble and install the two adjacent plates 1.

[0044] It is worth adding that hooks 3 are provided on both sides of the plate 1 near the top. The hooks 3 are U-shaped and one side of the hooks 3 is welded and fixed to the outer wall of the plate 1.

[0045] In this invention, the cooperation of the two hooks 3 helps the plate 1 to be hooked and connected with the slide bar on the filter press, increasing the stability of the installation.

[0046] Furthermore, the top of the plate 1 is symmetrically provided with lifting lugs 4, which are ring-shaped and are integrally formed with the plate 1.

[0047] In this invention, the cooperation of the two lifting lugs 4 helps to provide a point of leverage, making it convenient to place or remove the plate 1 vertically from above the filter press using the lifting lugs 4.

[0048] In this embodiment, when the diaphragm filter press plate is in use, the diaphragm plate 2 with protrusions 20 is first inserted into the slide groove 101 through the slider 21, and one end of the spring 100 is bonded to the bottom of the mud storage tank 10, and the other end is bonded to the inner side of the diaphragm plate 2. The filter hole 12 connects the mud storage tank 10 and the water storage layer 16. Then, the sealing strip 14 is bonded and fixed to the plate body 1, and the drain pipe 13 with butterfly valve 130 is installed and fixed to the plate body 1.

[0049] The plate 1 is lifted from above the filter press by two lifting lugs 4 and installed sequentially on the corresponding support rods. With the help of hooks 3, it is hooked and connected to the support rods to fix the plate 1 to the filter press. When solid-liquid separation is required, two adjacent plates 1 are tightly fitted together, and the sealing strip 14 on one plate 1 is inserted into the annular groove 15 on the other plate 1 to increase the stability of the combination of the two adjacent plates 1. The mixed solution to be separated from the outside enters the two sludge storage tanks 10 through the corresponding inlet 11 and is located in the space outside the diaphragm plate 2. With the cooperation of multiple filter holes 12, solid-liquid compression separation is achieved. When it is necessary to remove solids from the outside of the diaphragm plate 2, the adjacent plates 1 separate, and the spring 100 returns to its initial position after compression deformation, pushing the diaphragm plate 2 outward to achieve solid discharge. The overall combination and installation is convenient, the structure is simple, the construction cost is low, and it is easy to operate.

Claims

1. A diaphragm filter plate comprising a plate body (1), characterised in that: The plate body (1) is provided with a mud storage groove (10) on both sides, a spring (100) is arranged in the mud storage groove (10), a diaphragm plate (2) is arranged in the mud storage groove (10), a plurality of protrusions (20) are arranged on the outer side of the diaphragm plate (2), a sliding block (21) is arranged at the upper and lower ends of the diaphragm plate (2), a sliding groove (101) is arranged in the mud storage groove (10) corresponding to the sliding block (21), a plurality of water filtering holes (12) are arranged on the inner wall of the mud storage groove (10) close to the edge of the outer wall, a water storage layer (16) is arranged in the plate body (1), the water filtering holes (12) are in communication with the inside of the water storage layer (16), a liquid discharge pipe (13) is arranged on the outer wall of the plate body (1) close to the bottom and is in communication with the inside of the water storage layer (16), a liquid inlet (11) is arranged on the plate body (1) close to the top of the middle of the two sides, the liquid inlet (11) is in communication with the inside of the mud storage groove (10) close to the bottom of the two ends, a sealing strip (14) is arranged on one side of the plate body (1), and an annular groove (15) is arranged on the other side of the plate body (1) corresponding to the sealing strip (14).

2. The membrane filter plate of claim 1, wherein: The width of the inner wall of the mud storage groove (10) is matched with the width of the outer wall of the diaphragm plate (2), the protrusion (20) and the diaphragm plate (2) are an integral structure, the width of the outer wall of the protrusion (20) is matched with the width of the inner wall of the sliding groove (101), and the outer wall surface of the diaphragm plate (2) is flush with the inner side surface of the water filtering hole (12).

3. The membrane filter plate of claim 1, wherein: The springs (100) are distributed at equal intervals, one end of the spring (100) is adhesively fixed to the bottom of the mud storage groove (10), the other end of the spring (100) is adhesively fixed to the inner side surface of the diaphragm plate (2), the sliding block (21) and the diaphragm plate (2) are an integral structure, and the width of the outer wall of the sliding block (21) is matched with the width of the inner wall of the sliding groove (101).

4. The membrane filter plate of claim 1, wherein: The sealing strip (14) is in the shape of a back, the sealing strip (14) is adhesively fixed to the plate body (1), the width of the inner wall of the annular groove (15) is matched with the width of the outer wall of the sealing strip (14), and adjacent two plate bodies (1) are inserted and matched through the sealing strip (14) and the annular groove (15).

5. The membrane filter plate of claim 1, wherein: The liquid discharge pipe (13) is welded to the plate body (1), the inside of the liquid discharge pipe (13) is in communication with the inside of the water storage layer (16), a butterfly valve (130) is arranged at the end of the liquid discharge pipe (13), and the butterfly valve (130) is fixedly connected to the liquid discharge pipe (13) through screws.

6. The membrane filter plate of claim 1, wherein: The plate body (1) is provided with a hook (3) close to the top on both sides, the hook (3) is in the shape of U, and one side of the hook (3) is welded to the outer wall of the plate body (1).

7. The membrane filter plate of claim 1, wherein: The plate body (1) is provided with a lifting lug (4) at the top, the lifting lug (4) is in the shape of a ring, and the lifting lug (4) and the plate body (1) are an integral structure.

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