Filtrate collecting device
By designing a foldable and retractable filtrate collection device, the problems of large space occupation and secondary pollution of filtrate in traditional plate and frame filter presses with flip-plate structures are solved. This achieves automated control of efficient filtrate collection and sludge unloading processes, improving equipment efficiency and space utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BAOQINGTIAN ENVIRONMENTAL PROTECTION CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-12
AI Technical Summary
The traditional plate and frame filter press requires a large space for flipping, which affects the efficiency of sludge unloading and makes the filtrate prone to secondary pollution, and it cannot efficiently collect the filtrate.
Design a foldable and retractable filtrate collection device, including a guide rail, a rigid plate, a flexible waterproof sealing connector, a water collection tank, a pusher block, and a drive device. The expansion and folding of the guide plate are achieved through electric control, ensuring the efficient operation of filtrate collection and sludge unloading processes.
It improves the overall working efficiency of the filter press, reduces the space requirements of the equipment, avoids secondary pollution of the filtrate, and improves the efficiency of sludge unloading.
Smart Images
Figure CN224220839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of mud-water separation devices, and in particular to a filtrate collection device suitable for plate and frame filter presses. Background Technology
[0002] The plate and frame filter press primarily relies on a flapper plate beneath the plates and frames for filtrate collection and sludge unloading. During filtrate collection, the flapper plate is horizontal; during unloading, it flips to a vertical position to facilitate the falling of the filter cake. This flapper plate structure has several limitations. First, it requires considerable space to flip, necessitating sufficient clearance around the filter press and significantly restricting equipment layout. Second, even when the flapper plate is vertical during unloading, filter cake may still fall onto it, obstructing the unloading process and affecting unloading efficiency. Furthermore, the unloading process is gradual, proceeding from front to back, and some filtrate drips. When the plates are vertical, they cannot collect the filtrate, and the dripping filtrate falls into the fallen filter cake, causing secondary contamination. Therefore, it is necessary to develop a novel filtrate collection and unloading auxiliary device to overcome the shortcomings of the traditional flapper plate. Utility Model Content
[0003] The purpose of this utility model is to provide a foldable and retractable filtrate collection device, which can quickly and reliably unfold to form a complete guide plate when the plate and frame filter press needs to collect filtrate. During the unloading stage, the guide plate can be retracted by electric operation, without occupying the unloading space, improving the overall working efficiency of the filter press, and reducing the equipment's requirements for site space.
[0004] The objective of this utility model is achieved through the following technical solution.
[0005] A filtrate collection device is provided, comprising a guide rail, a rigid plate, a flexible waterproof sealing connector, a water collection tank, a pusher block, and a drive device;
[0006] The guide rail is provided with a sliding groove; there are multiple rigid plates, and adjacent rigid plates are connected by a flexible waterproof sealing connector, and the rigid plates and the flexible waterproof sealing connector form a liquid guiding plate;
[0007] A rotating shaft is provided between the rigid plate and the guide rail. One end of the rotating shaft is connected to the end of the rigid plate, and the other end is located in the slide groove on the guide rail, so that the rigid plate can rotate and slide along the slide groove.
[0008] The pusher block is set inside the chute and abuts against the rigid plate at the front end of the liquid guide plate;
[0009] The drive device is connected to the push block and is used to drive the push block to move along the slide to push the rigid plate to the rear end of the slide.
[0010] The water collection tank is located below the liquid guide plate and is arranged around the edge of the liquid guide plate.
[0011] Preferably, the rigid plate adopts a thin plate structure and is made of corrosion-resistant stainless steel or high-strength plastic. Adjacent rigid plates are connected in sequence by flexible waterproof sealing connectors, so that they can rotate relative to each other to achieve the folding function, and can also ensure sealing when unfolded to prevent filtrate leakage.
[0012] Preferably, there are two guide rails, which are arranged horizontally and parallel to each other; the liquid guiding plate is located between the guide rails, and both ends of each rigid plate are connected to the guide rail at their corresponding ends via a rotating shaft.
[0013] Furthermore, a roller is provided at one end of the rotating shaft located within the slide groove, ensuring that the rigid plate moves smoothly and does not deviate during movement.
[0014] Preferably, the rigid plate is an arched plate; the width of the flexible waterproof sealing connector is the same as the width of the rigid plate.
[0015] Preferably, the water collection tank is located below both sides of the liquid guiding plate. The rigid plate is an arched plate, which facilitates the guidance of the filtrate dripping onto the liquid guiding plate to fall into the water collection tank below.
[0016] Preferably, the flexible waterproof sealing connector is a flexible sheet with bending elasticity. Using a flexible sheet with bending elasticity as the flexible waterproof sealing connector facilitates the automatic unfolding of the liquid guiding plate from the folded state.
[0017] Preferably, the front end of the flexible waterproof sealing connector is connected to the lower surface of the rigid plate, and the rear end is connected to the upper surface of the rigid plate.
[0018] Preferably, the front end of the pusher is connected to a driving device, and the rear end is provided with an inclined push surface facing the rigid plate, the inclined push surface abutting against the rigid plate at the front end of the liquid guide plate.
[0019] Preferably, the driving device includes a motor, sprockets at both ends of the guide rail, and a chain between the sprockets; the front end of the pusher is fixed to the chain; the motor drives the sprockets to rotate forward or backward, causing the pusher on the chain to reciprocate along the slide groove. That is, the motor can control the unfolding and folding of the liquid guide plate by rotating forward and backward.
[0020] Preferably, the slide is provided with a limiting block located at the front end of the slide, which is used to physically prevent the push block from moving excessively and causing damage.
[0021] Furthermore, limit switches are provided at both ends of the slide. The limit switches are electrically connected to the motor. When the push block triggers the limit switch, the motor stops working, thereby achieving precise control of the push block's movement position.
[0022] Furthermore, it also includes a control system for controlling the motor and limit switches.
[0023] The aforementioned filtrate collection device can be used for filtrate collection in plate and frame filter presses. Specifically, the filtrate collection device is installed below the plate and frame. During filtration, the guide plate unfolds to receive the filtrate, which then flows from the edge of the guide plate into the collection tank below. During sludge discharge, the drive device drives the pusher block to move along the slide, pushing the rigid plate at the front end of the guide plate to move along the guide rail to the rear end and flip to the vertical position. The flexible waterproof sealing connector bends under the thrust. The subsequent rigid plate also moves along the guide rail to the rear end and flips to the vertical position under the thrust of the pusher block and the traction of the flexible waterproof sealing connector. Finally, all the rigid plates are folded. At this time, the unloading space below the plate and frame is not occupied at all, and the filter cake can be smoothly removed from the filter plate and cleaned up and transported away.
[0024] This utility model's filtrate collection device can fold and retract the guide plate during the sludge unloading stage, thus not occupying unloading space, improving the overall working efficiency of the filter press, and reducing the equipment's space requirements. Furthermore, the filtrate collection device can control the degree of guide plate retraction according to the progress of the sludge unloading stage, ensuring that the retracted portion of the guide plate leaves unloading space, while the unretracted portion continues to collect dripping filtrate, preventing filtrate from falling into the filter cake and causing secondary pollution. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the filtrate collection device according to an embodiment of the present invention.
[0027] Figure 2 for Figure 1 A cross-sectional view along the AA direction.
[0028] Figure 3 for Figure 1 A magnified view of a portion of region X.
[0029] Figure 4 This is a schematic diagram of the filtrate collection device according to an embodiment of the present invention.
[0030] Figure 5 for Figure 4 A cross-sectional view along the BB direction.
[0031] The markings in the diagram are as follows: 1-rigid plate; 2-drive device; 3-guide rail; 4-flexible waterproof sealing connector; 5-limiting block; 6-water collection tank; 7-push block; 71-push block front end; 72-push block rear end; 73-sloping push surface; 8-rotating shaft; 9-roller. Detailed Implementation
[0032] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0033] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.
[0034] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.
[0035] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0036] Example
[0037] Please see Figures 1 to 5 The filtrate collection device shown includes a guide plate, a guide rail 3, a water collection tank 6, a pusher block 7, a drive device 2, and a control system.
[0038] The liquid guiding plate comprises multiple rigid plates 1 and multiple flexible waterproof sealing connectors 4. The rigid plates 1 have a thin plate structure and are made of corrosion-resistant stainless steel or high-strength plastic. The rigid plates 1 are arranged side-by-side along their width, and adjacent rigid plates 1 are connected by flexible waterproof sealing connectors 4. The width of the flexible waterproof sealing connectors 4 is the same as the width of the rigid plates 1, allowing them to rotate relative to each other to achieve a folding function, while also ensuring a seal when unfolded to prevent filtrate leakage.
[0039] In this embodiment, the rigid plate 1 is an arched plate, specifically a bent plate with a certain included angle formed by bending in the middle. Preferably, the included angle is 120°-170°. The rigid plate is arched to facilitate the guidance of the filtrate dripping onto the liquid guide plate to both sides. The flexible waterproof sealing connector 4 is a flexible sheet with bending elasticity. Using a flexible sheet with bending elasticity as the flexible waterproof sealing connector facilitates the automatic unfolding of the liquid guide plate from the folded state using the bending elasticity of the flexible sheet. The front end of the flexible waterproof sealing connector 4 is connected to the lower surface of the rigid plate 1, and the rear end is connected to the upper surface of the rigid plate 2, facilitating the traction of the rigid plate 2 and its own folding. In some other embodiments, the flexible waterproof sealing connector 4 is a flexible sheet without bending elasticity, and the liquid guide plate in the folded state is unfolded manually.
[0040] The guide rails 3 are two in number and are arranged horizontally and parallel to each other. Each guide rail 3 has a groove on its opposite side. A liquid guide plate is located between the two guide rails 3. Both ends of each rigid plate 1 are connected to the corresponding end of the guide rail 3 via a rotating shaft 8. Specifically, one end of the rotating shaft 8 is connected to the end of the rigid plate 1, and the other end is located in the groove on the guide rail 3, allowing the rigid plate 1 to rotate and slide along the groove. A roller 9 is provided at the end of the rotating shaft 8 located in the groove, ensuring that the rigid plate 1 moves smoothly and without deviation during movement.
[0041] The water collection tank 6 is located below both sides of the liquid guide plate and is used to collect the filtrate that is guided to both sides of the liquid guide plate.
[0042] A pusher block 7 is disposed within a chute, abutting against the rigid plate 1 at the front end of the liquid guide plate. A drive device 2 is connected to the pusher block 7 and drives it to move along the chute, pushing the rigid plate 1 to the rear end of the chute. Specifically, the front end 71 of the pusher block (i.e., the front end of the pusher block described above) is connected to the drive device, and the rear end 72 of the pusher block (i.e., the rear end of the pusher block described above) has an inclined pushing surface 73 facing the rigid plate 1. The inclined pushing surface 73 abuts against the rigid plate 1 at the front end of the liquid guide plate, providing an initial flipping thrust to the rigid plate 1 at the front end of the liquid guide plate. The drive device 2 includes a motor, sprockets disposed at both ends of the guide rail, and a chain located between the sprockets. The front end 71 of the pusher block is fixed to the chain. The motor drives the sprockets to rotate forward or backward, causing the pusher block 7 on the chain to reciprocate along the chute. That is, the motor can control the unfolding and folding of the liquid guide plate by rotating forward and backward.
[0043] Furthermore, the slide is equipped with a limit block 5, located at the front end of the slide, to physically prevent the push block 7 from moving excessively and causing damage. Limit switches are also provided at both ends of the slide, electrically connected to the motor. When the push block 7 triggers the limit switch, the motor stops working, achieving precise control of the push block 7's movement position.
[0044] The control system is used to control motors and limit switches to achieve automation.
[0045] The filtrate collection device of this embodiment can be used for filtrate collection in a plate and frame filter press. Specifically, the filtrate collection device is installed below the plate and frame. Before unloading the sludge, the drive device 2 drives the pusher block 7 to move from the front end to the rear end of the chute, pushing the rigid plate 1 at the front end of the guide plate to move along the chute to the rear end and flip to a vertical position. The flexible waterproof sealing connector 4 bends under the thrust. The subsequent rigid plate also moves along the guide rail to the rear end and flips to a vertical position under the thrust of the pusher block and the traction of the flexible waterproof sealing connector, finally completing the folding of all rigid plates (e.g., ...). Figure 4 As shown), at this time, it does not occupy the unloading space below the plate frame at all, and the filter cake can be smoothly detached from the filter plate and cleaned and transported away; during filter pressing, the drive device 2 drives the push block 7 back to the front end of the slide, and the flexible waterproof sealing connector 4 on the liquid guide plate recovers under the action of bending elasticity, pushing the rigid plate 1 to move along the slide, so that the liquid guide plate unfolds to receive the filtrate (as shown). Figure 1 As shown), the collected filtrate flows from both sides of the guide plate into the collection tank 6 below. In some other embodiments, the rigid plate 1 at the front end of the guide plate can be equipped with a traction and fixing device (such as a rope, hook, etc.) to fix the rigid plate 1 at the front end of the guide plate to the device frame when the guide plate is unfolded, so as to prevent the guide plate from loosening when collecting filtrate.
[0046] This filtrate collection device can fold and retract the guide plate during the sludge unloading stage, without occupying unloading space, thus improving the overall working efficiency of the filter press and reducing the equipment's space requirements. Furthermore, the device can control the degree of guide plate retraction according to the progress of the sludge unloading stage, ensuring that the retracted portion of the guide plate leaves unloading space while the unretracted portion continues to collect dripping filtrate, preventing filtrate from falling into the filter cake and causing secondary pollution.
[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A filtrate collection device, characterized in that, Includes guide rails, rigid plates, flexible waterproof sealing connectors, water collection tanks, push blocks, and drive devices; The guide rail is provided with a sliding groove; there are multiple rigid plates, and adjacent rigid plates are connected by a flexible waterproof sealing connector, and the rigid plates and the flexible waterproof sealing connector form a liquid guiding plate; A rotating shaft is provided between the rigid plate and the guide rail. One end of the rotating shaft is connected to the end of the rigid plate, and the other end is located in the slide groove on the guide rail, so that the rigid plate can rotate and slide along the slide groove. The pusher block is set inside the chute and abuts against the rigid plate at the front end of the liquid guide plate; The drive device is connected to the push block and is used to drive the push block to move along the slide to push the rigid plate to the rear end of the slide. The water collection tank is located below the liquid guide plate and is arranged around the edge of the liquid guide plate.
2. The filtrate collection device according to claim 1, characterized in that, The guide rails consist of two parallel horizontal rails; the liquid guiding plates are located between the guide rails, and both ends of each rigid plate are connected to the corresponding guide rail via a rotating shaft.
3. The filtrate collection device according to claim 2, characterized in that, The rotating shaft is equipped with a roller at one end located inside the slide groove.
4. The filtrate collection device according to claim 1, characterized in that, The rigid plate is an arched plate; the width of the flexible waterproof sealing connector is the same as the width of the rigid plate.
5. The filtrate collection device according to claim 4, characterized in that, The flexible waterproof sealing connector is a flexible sheet with bending elasticity.
6. The filtrate collection device according to claim 5, characterized in that, The front end of the flexible waterproof sealing connector is connected to the lower surface of the rigid plate, and the rear end is connected to the upper surface of the rigid plate.
7. The filtrate collection device according to claim 4, characterized in that, The water collection tank is located below both sides of the liquid guide plate.
8. The filtrate collection device according to claim 1, characterized in that, The front end of the pusher is connected to the drive device, and the rear end is provided with an inclined push surface facing the rigid plate. The inclined push surface abuts against the rigid plate at the front end of the liquid guide plate.
9. The filtrate collection device according to claim 8, characterized in that, The drive device includes a motor, sprockets at both ends of the guide rail and a chain between the sprockets; the front end of the pusher is fixed on the chain; the motor drives the sprockets to rotate forward or backward, causing the pusher on the chain to reciprocate along the slide groove.
10. The filtrate collection device according to claim 9, characterized in that, The slide is equipped with a limiting block, which is located at the front end of the slide.