Hydraulic self-locking filter plate sealing mechanism of plate and frame filter press

Abstract

This application relates to a hydraulic self-locking filter plate sealing mechanism for a plate and frame filter press, and pertains to the technical field of filter presses. It includes a support plate, to which a telescopic mechanism is fixedly connected. A filtration mechanism is also fixedly connected to the outside of the support plate. The telescopic mechanism includes a drive assembly for driving, which is fixedly connected to the outside of the support plate. A connecting support column is fixedly connected to the outside of the drive assembly. A rotating rod connecting ring is rotatably connected to the outside of the connecting support column, and a connecting rotating rod is fixedly connected to the outside of the rotating rod connecting ring. This application ensures stable operation of the mechanism, its modular structure facilitates easy disassembly and assembly of components, allows for quick location and repair in case of failure, has fewer mechanical transmission parts, reduces maintenance workload, effectively shortens downtime, and improves equipment utilization.

Description

Technical Field

[0001] This application relates to the technical field of filter presses, and in particular to a hydraulic self-locking filter plate sealing mechanism for plate and frame filter presses. Background Technology

[0002] Plate and frame filter presses are a commonly used solid-liquid separation equipment, widely used in many fields such as chemical industry, environmental protection, and food processing. They rely on the filter chambers formed between filter plates to achieve solid-liquid separation. During operation, sufficient pressure needs to be applied to the filter plates to ensure the airtightness of the filter chambers and prevent material leakage. Only by ensuring the airtightness of the filter chambers can the filtration process be carried out efficiently and the ideal separation effect be obtained.

[0003] A search revealed Chinese patent publication number CN207085442U, which discloses a plate and frame filter press. This patent solves the problem in existing technologies where, during the cleaning of the filter cake, the filter plates separate, exposing the sealing strip. When the filter cake falls, mud and other debris easily adhere to the lower sealing strip, causing poor airtightness after drying and leading to water seepage between the filter plates. The key technical point is that the plate and frame filter press includes a frame, on which filter plates are mounted. Sealing rings and sealing grooves are provided between the filter plates. A cleaning mechanism on the filter plates washes the sealing rings and sealing grooves, improving the sealing effect and preventing water seepage between the filter plates.

[0004] The aforementioned patent specification mentions that "the piston rod and piston cylinder work together to allow the filter plates to be evenly separated, and the movement of the piston rod inside the piston cylinder provides power for the water tank to draw water from the clear water pool and spray water from the flushing pipe." However, some devices cannot accommodate more extrusion plates. In response to the aforementioned related technologies, a hydraulic self-locking filter plate sealing mechanism for plate and frame filter presses is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a hydraulic self-locking filter plate sealing mechanism for plate and frame filter presses, which aims to improve the problem that some devices cannot accommodate more extruded plates.

[0006] The hydraulic self-locking filter plate sealing mechanism of the plate and frame filter press provided in this application adopts the following technical solution: it includes a support fixing plate, a telescopic mechanism is fixedly connected to the outside of the support fixing plate, a filtering mechanism is fixedly connected to the outside of the support fixing plate, the telescopic mechanism includes a drive assembly for driving, the drive assembly is fixedly connected to the outside of the support fixing plate, a connecting support column is fixedly connected to the outside of the drive assembly, a rotating rod connecting ring is rotatably connected to the outside of the connecting support column, a connecting rotating rod is fixedly connected to the outside of the rotating rod connecting ring, a support rotating column is fixedly connected to the inside of the connecting rotating rod, i.e., the end away from the connecting support column, a connecting sliding block is rotatably connected to the outside of the supporting rotating column, a connecting sliding plate is fixedly connected to the outside of the connecting sliding block, and a support slide rail is slidably connected to the inside of the connecting sliding block;

[0007] Through the above technical solutions: the mechanical transmission structure stabilizes the filter plate clamping force, improving filtration efficiency and stability, reducing equipment operating energy consumption; the stroke and pressure of the telescopic mechanism can be flexibly adjusted according to different materials and working conditions to meet diverse filtration needs; the modular design makes it easy to disassemble and assemble each component, reducing maintenance difficulty and cost; and the mechanical transmission ensures a tight fit between the filter plates, effectively preventing slurry leakage and improving filtration quality.

[0008] Preferably, the filtration mechanism includes a filter screen, a connecting filter screen is fixedly connected to the outside of the filter screen, and a connecting support layer is fixedly connected to the outside of the connecting filter screen.

[0009] By adopting the above technical solution, the filter screen and the connecting filter screen form a dual filtration system. The filter screen intercepts large particles, while the connecting filter screen further traps fine impurities, improving the purity of the filtrate, effectively resisting material pressure during filtration, preventing filter screen deformation and damage, and extending the service life of the filtration mechanism. The combination of filter screens with different materials and pore sizes can adapt to various material characteristics, ensuring filtration effect and meeting diverse industrial needs. All components work closely together, and the support layer provides a stable working environment for the filter screen. The filter screen achieves efficient filtration, improving the overall working performance and reliability of the filter press.

[0010] Preferably, the external support slide rail is fixedly connected to the outside of the support fixing plate, and the external connecting slide block is slidably connected to the outside of the support fixing plate;

[0011] By adopting the above technical solutions, the pressure and impact force during the operation of the telescopic mechanism are effectively dispersed, vibration is reduced, the filter press is ensured to operate smoothly, the risk of equipment failure is reduced, the friction loss between the support slide rail and the connecting sliding block is low, and regular maintenance is convenient, extending the service life of components, reducing the frequency of replacement and maintenance costs. The modular design makes the fixing of the support slide rail and the support fixing plate and the assembly of the connecting sliding block simple, reducing the installation difficulty, facilitating equipment assembly and subsequent component replacement, and improving production efficiency.

[0012] Preferably, the external part of the connecting support column is slidably connected to the outside of the support fixing plate, and the external part of the connecting rotating rod is rotatably connected to the outside of the support fixing plate;

[0013] By adopting the above technical solutions, energy transmission is effectively reduced, ensuring rapid and stable pressing of the filter plates. The sliding of the connecting support column and the rotation of the connecting rotating rod enable flexible conversion of motion modes, allowing adjustment of the pressing stroke and force of the filter plates to adapt to different working conditions. This effectively disperses stress, reduces the risk of component deformation, and ensures long-term stable operation of the filter press. The connecting support column and connecting rotating rod are easy to disassemble, allowing for quick location and replacement in case of malfunction, shortening downtime for maintenance and improving equipment efficiency.

[0014] Preferably, the drive assembly includes a rotary motor, the drive end of which is fixedly connected to a connecting rotary plate, and the outside of the connecting rotary plate is rotatably connected to the outside of the connecting support column.

[0015] By adopting the above technical solutions, we can adapt to diverse production scenarios. The rotating connection design between the rotating plate and the supporting column reduces mechanical wear, extends the service life of the rotating motor and the entire drive assembly, reduces the probability of failure, and uses a high-efficiency rotating motor in conjunction with a reasonable transmission design.

[0016] Preferably, the external fixed connection of the rotating motor is to the outside of the supporting fixed plate, the external rotatable connection of the connecting rotating plate is to the outside of the supporting fixed plate, and the external rotatable connection of the rotating rod connecting ring is to the outside of the connecting rotating plate.

[0017] By adopting the above technical solution, the rotational connection design between the components disperses the force during the power transmission process. At the same time, the connection between the rotating plate and the support plate enhances the overall stability of the drive assembly and improves the reliability of the mechanism in long-term operation.

[0018] Preferably, an adsorption layer is fixedly connected to the outside of the connecting support layer, and the adsorption layer is fixedly connected to the inside of the support fixing plate.

[0019] By adopting the above technical solution, the adsorption layer can effectively adsorb impurities such as pigments, odors, organic matter, and some heavy metal ions in the liquid. Combined with the stable support of the connecting support layer, the adsorption process is guaranteed to be stable and efficient. The connecting support layer shares the pressure and impact force of the liquid on the adsorption layer during the filtration process, extending the service life of the adsorption layer and thus reducing the replacement frequency and maintenance cost of the overall filtration mechanism. The fixed connection between the connecting support layer and the adsorption layer, as well as the stable assembly between the adsorption layer and the support plate, can better resist pressure changes during the filtration process and ensure stable filtration.

[0020] Preferably, an activated carbon layer is fixedly connected to the outside of the adsorption layer, a supporting connecting shell is fixedly connected to the outside of the activated carbon layer, the supporting connecting shell is fixedly connected to the inside of the supporting fixing plate, a connecting sterilization layer is fixedly connected to the side of the connecting filter and the connecting supporting layer, a pressing connecting block is slidably connected to the inside of the supporting fixing plate, and a connecting water container is fixedly connected to the outside of the pressing connecting block, i.e., the end away from the filtration mechanism.

[0021] By adopting the above technical solution, the adsorption layer and the activated carbon layer form a dual adsorption system. The former initially adsorbs large molecular impurities, while the activated carbon layer deeply adsorbs small molecular organic matter with its high porosity structure, thereby improving the purity and safety of the filtrate. The supporting connecting shell and the supporting fixing plate are tightly fixed, providing support for the adsorption layer and the activated carbon layer. The multi-layer structure design allows for adjustment of the material and thickness of the adsorption layer and the activated carbon layer according to different material characteristics and filtration requirements, and replacement of the appropriate connecting sterilization layer. It is suitable for various scenarios such as chemical raw material purification and sewage purification, enhancing the versatility and market competitiveness of the plate and frame filter press.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The displacement of the connecting sliding plate can be controlled by adjusting the motor speed, allowing for adjustment of the number of filter plates and the movement distance as needed to adapt to different material filtration requirements, thereby improving filtration efficiency and quality. The rotation and sliding connection design between various components disperses motion stress and reduces mechanical wear. The support slide rail provides stable guidance, ensuring smooth operation of the mechanism and reducing the probability of failure. Once the filter plates are locked, no continuous power supply is required, significantly reducing energy consumption and saving operating costs. The modular structure makes it easy to disassemble and assemble each component, and allows for quick location and repair in case of failure. With fewer mechanical transmission parts, maintenance workload is reduced, effectively shortening downtime and improving equipment utilization.

[0024] 2. The supporting connecting shell and the supporting fixing plate form a frame, which disperses the filtration pressure, reduces the risk of component deformation, extends the service life of the connecting support layer, and the modular design allows each filter layer to be replaced independently. The activated carbon layer and adsorption layer are regenerable, reducing consumable costs and the risk of system pollution. It can be flexibly adapted to different material characteristics, such as chemical raw material purification, sewage treatment and other scenarios, improving the versatility of the equipment. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the hydraulic self-locking filter plate sealing mechanism of the plate and frame filter press proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the supporting rotating column structure of the hydraulic self-locking filter plate sealing mechanism of the plate and frame filter press proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the support and fixing plate structure of the hydraulic self-locking filter plate sealing mechanism of the plate and frame filter press proposed in this utility model;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0029] Explanation of reference numerals in the attached drawings: 1. Supporting fixed plate; 2. Telescopic mechanism; 21. Drive assembly; 211. Rotating motor; 212. Connecting rotating plate; 22. Connecting support column; 23. Rotating rod connecting ring; 24. Connecting rotating rod; 25. Supporting rotating column; 26. Connecting sliding block; 27. Supporting slide rail; 28. Connecting sliding plate; 3. Filtering mechanism; 31. Filter screen; 32. Connecting filter screen; 33. Connecting support layer; 34. Adsorption layer; 35. Activated carbon layer; 36. Supporting connecting shell; 37. Connecting sterilization layer; 4. Connecting water container; 5. Extrusion connecting block. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.

[0031] Example: Hydraulic self-locking filter plate sealing mechanism of plate and frame filter press, refer to Figure 1 and Figure 2 The mechanism includes a support plate 1, which serves as the basic framework of the entire mechanism and plays a core supporting role. The support plate 1 is externally fixedly connected to a telescopic mechanism 2 and a filter mechanism 3. The telescopic mechanism 2 includes a drive assembly 21 for driving. The drive assembly 21 is the power source of the telescopic mechanism 2. The rotating motor 211 serves as the core power element, which converts electrical energy into mechanical energy to provide power for the entire telescopic action.

[0032] The drive assembly 21 is externally fixedly connected to the outside of the support plate 1. The drive assembly 21 is externally fixedly connected to a connecting support column 22. One end of the connecting support column 22 is fixedly connected to the connecting rotating plate 212 in the drive assembly 21 to receive the power transmitted from the connecting rotating plate 212. The other end is connected to the rotating rod connecting ring 23. The connecting support column 22 is externally rotatably connected to the rotating rod connecting ring 23. The rotating rod connecting ring 23 is fixedly connected to the connecting support column 22 to provide a connection point and rotation support for the connecting rotating rod 24. The rotating rod 24 is externally fixedly connected to the rotating rod connecting ring 23. One end of the connecting rotating rod 24 is fixedly connected to the rotating rod connecting ring 23, and the other end is fixedly connected to the support rotating column 25.

[0033] The connecting rotating rod 24 is fixedly connected to a supporting rotating column 25 at the end away from the connecting supporting column 22. When the connecting rotating rod 24 rotates, the supporting rotating column 25 rotates inside the connecting sliding block 26, and at the same time drives the connecting sliding block 26 to slide linearly on the supporting slide rail 27. The supporting rotating column 25 is rotatably connected to the connecting sliding block 26. The connecting sliding block 26 is rotatably connected to the supporting rotating column 25, and slides on the supporting slide rail 27. It is also fixedly connected to the connecting sliding plate 28. The connecting sliding block 26 is fixedly connected to the connecting sliding plate 28. The connecting sliding plate 28 is fixedly connected to the connecting sliding block 26.

[0034] The connecting sliding block 26 is internally slidably connected to a support slide rail 27, which is fixedly connected to the support fixing plate 1, providing a sliding track and support for the connecting sliding block 26. The external support slide rail 27 is fixedly connected to the outside of the support fixing plate 1, the external connecting sliding block 26 is slidably connected to the outside of the support fixing plate 1, the external connecting support column 22 is slidably connected to the outside of the support fixing plate 1, and the external connecting rotating rod 24 is rotatably connected to the outside of the support fixing plate 1.

[0035] The drive assembly 21 includes a rotary motor 211, the drive end of the rotary motor 211 is fixedly connected to a connecting rotary plate 212, the outside of the connecting rotary plate 212 is rotatably connected to the outside of the connecting support column 22, the outside of the rotary motor 211 is fixedly connected to the outside of the support fixed plate 1, the outside of the connecting rotary plate 212 is rotatably connected to the outside of the support fixed plate 1, and the outside of the rotating rod connecting ring 23 is rotatably connected to the outside of the connecting rotary plate 212.

[0036] Specifically, the support plate 1 serves as the basic frame, on which the telescopic mechanism 2 and the filter mechanism 3 are fixed. The drive component 21 of the telescopic mechanism 2 uses a rotating motor 211 as the power source to drive the connecting rotating plate 212 to rotate, causing the connecting support column 22 to slide on the support plate 1. The connecting support column 22 drives the connecting rotating rod 24 to rotate through the rotating rod connecting ring 23, thereby causing the support rotating column 25 to drive the connecting sliding block 26 to slide along the support slide rail 27, pushing the connecting sliding plate 28 to increase the filter plate and change the distance.

[0037] Reference Figure 1 , Figure 3 and Figure 4The filtration mechanism 3 includes a filter screen 31, a connecting filter screen 32 fixedly connected to the outside of the filter screen 31, the connecting filter screen 32 is fixedly connected to the outside of the filter screen 31, and assists in filtration and protects the filter screen 31. A connecting support layer 33 is fixedly connected to the outside of the connecting filter screen 32, the connecting support layer 33 is located outside the connecting filter screen 32, and mainly provides structural support for the filtration mechanism 3. An adsorption layer 34 is fixedly connected to the outside of the connecting support layer 33. During the filtration process, when the liquid passes through the adsorption layer 34, the adsorption layer 34 can adsorb impurities such as pigments, odor substances, organic matter and some heavy metal ions in the liquid, further purifying the liquid and improving the quality of the filtered liquid.

[0038] The adsorption layer 34 is externally fixedly connected to the inside of the support plate 1. An activated carbon layer 35 is externally fixedly connected to the adsorption layer 34. The activated carbon layer 35 utilizes the rich pore structure and huge specific surface area of ​​activated carbon to perform physical and chemical adsorption on impurities in the liquid. A support connecting shell 36 is externally fixedly connected to the activated carbon layer 35. The support connecting shell 36 is fixedly connected to the inside of the support plate 1 and plays a protective and fixing role. The external of the support connecting shell 36 is fixedly connected to the inside of the support plate 1.

[0039] A sterilization layer 37 is fixedly connected to the side of the connecting filter 32 and the connecting support layer 33. The sterilization layer 37 is located between the connecting filter 32 and the connecting support layer 33 and is made of a sterilization material. A compression connecting block 5 is slidably connected inside the support fixing plate 1. The compression connecting block 5 slides inside the support fixing plate 1 under the push of the telescopic mechanism 2. A water container 4 is fixedly connected to the outside of the compression connecting block 5, that is, the end away from the filter mechanism 3. The water container 4 is fixedly connected to the end of the compression connecting block 5 away from the filter mechanism 3 and collects the liquid separated by the filter mechanism 3 during the filtration and compression process.

[0040] Specifically, through a multi-layered composite structure, it achieves a complete process from coarse filtration to deep purification and sterilization, effectively removing various impurities and bacteria from liquids, significantly improving liquid quality. The cooperation of each layer extends the service life of the filter, and the squeeze collection design improves filtration efficiency. It is suitable for a variety of liquid purification scenarios and has wide applicability and good economic benefits.

[0041] The implementation principle of this application embodiment is as follows: the rotating motor 211 serves as a power source, and after being powered on, it drives the connecting rotating plate 212 to rotate. The connecting rotating plate 212 drives the connecting support column 22 fixed thereto to slide on the support fixing plate 1. At the same time, the rotating rod connecting ring 23 drives the connecting rotating rod 24 to rotate. When the connecting rotating rod 24 rotates, the support rotating column 25 at its end drives the connecting sliding block 26 to slide along the support slide rail 27, thereby driving the connecting sliding plate 28 to move. The number of filter plates and the movement distance are adjusted as needed to complete the pressing and sealing of the filter plates, ensuring that the material is separated into solid and liquid under pressure during the filtration process.

[0042] The extrusion connecting block 5 slides towards the filter mechanism 3 under the push of the telescopic mechanism 2. Under pressure, the material first contacts the filter screen 31, and solid particles are intercepted. The filtrate undergoes secondary filtration through the connecting filter screen 32, where fine impurities are retained. Subsequently, the liquid passes through the connecting sterilization layer 37, which kills bacteria, viruses, and other microorganisms. The liquid then flows sequentially through the connecting support layer 33, the adsorption layer 34, and the activated carbon layer 35. The adsorption layer 34 adsorbs pigments, odor substances, etc., while the activated carbon layer 35 deeply purifies the liquid using its rich pore structure. The supporting connecting shell 36 and the supporting fixing plate 1 provide stable support and protection for each filter layer, ensuring that the filtration process is efficient and stable.

[0043] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hydraulic self-locking filter plate sealing mechanism for a plate and frame filter press, comprising a support fixing plate (1), characterized in that: The support fixing plate (1) is externally fixedly connected to a telescopic mechanism (2), and the support fixing plate (1) is externally fixedly connected to a filter mechanism (3). The telescopic mechanism (2) includes a drive assembly (21) for driving. The drive assembly (21) is fixedly connected to the outside of the support fixing plate (1). A connecting support column (22) is fixedly connected to the outside of the drive assembly (21). A rotating rod connecting ring (23) is rotatably connected to the outside of the connecting support column (22). A connecting rotating rod (24) is fixedly connected to the outside of the rotating rod connecting ring (23). A supporting rotating column (25) is fixedly connected to the inside of the connecting rotating rod (24), i.e., at the end away from the connecting support column (22). A connecting sliding block (26) is rotatably connected to the outside of the supporting rotating column (25). A connecting sliding plate (28) is fixedly connected to the outside of the connecting sliding block (26). A supporting slide rail (27) is slidably connected to the inside of the connecting sliding block (26).

2. The hydraulic self-locking filter plate sealing mechanism of the plate and frame filter press according to claim 1, characterized in that: The filtration mechanism (3) includes a filter screen (31), a connecting filter screen (32) is fixedly connected to the outside of the filter screen (31), and a connecting support layer (33) is fixedly connected to the outside of the connecting filter screen (32).

3. The hydraulic self-locking filter plate sealing mechanism of the plate and frame filter press according to claim 1, characterized in that: The external support slide rail (27) is fixedly connected to the outside of the support fixing plate (1), and the external connecting slide block (26) is slidably connected to the outside of the support fixing plate (1).

4. The hydraulic self-locking filter plate sealing mechanism of the plate and frame filter press according to claim 3, characterized in that: The external sliding connection of the connecting support column (22) is to the outside of the supporting fixing plate (1), and the external rotatable connection of the connecting rotating rod (24) is to the outside of the supporting fixing plate (1).

5. The hydraulic self-locking filter plate sealing mechanism of the plate and frame filter press according to claim 4, characterized in that: The drive assembly (21) includes a rotary motor (211), the drive end of which is fixedly connected to a connecting rotating plate (212), and the outside of the connecting rotating plate (212) is rotatably connected to the outside of the connecting support column (22).

6. The hydraulic self-locking filter plate sealing mechanism of the plate and frame filter press according to claim 5, characterized in that: The rotating motor (211) is externally fixedly connected to the outside of the support fixing plate (1), the external rotating plate (212) is externally rotatably connected to the outside of the support fixing plate (1), and the external rotating rod connecting ring (23) is externally rotatably connected to the outside of the connecting rotating plate (212).

7. The hydraulic self-locking filter plate sealing mechanism of the plate and frame filter press according to claim 2, characterized in that: An adsorption layer (34) is fixedly connected to the outside of the connecting support layer (33), and the adsorption layer (34) is fixedly connected to the inside of the support fixing plate (1).

8. The hydraulic self-locking filter plate sealing mechanism of the plate and frame filter press according to claim 7, characterized in that: An activated carbon layer (35) is fixedly connected to the outside of the adsorption layer (34), and a supporting connecting shell (36) is fixedly connected to the outside of the activated carbon layer (35). The supporting connecting shell (36) is fixedly connected to the inside of the supporting fixing plate (1). A connecting bactericidal layer (37) is fixedly connected to the side of the connecting filter (32) and the connecting supporting layer (33). A pressing connecting block (5) is slidably connected inside the supporting fixing plate (1). A connecting water container (4) is fixedly connected to the outside of the pressing connecting block (5), i.e., the end away from the filtration mechanism (3).

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