Filter pressing device for landfill leachate treatment

Abstract

The utility model discloses a filter pressing device for landfill leachate treatment, relates to the technical field of landfill leachate treatment, and aims to solve the technical problems that the squeezing uniformity is influenced and the squeezing effect is influenced due to the non-uniform distribution phenomenon when the existing filter pressing device is used for adding garbage, and the filter pressing device comprises a treatment cabinet with a cover plate, an extrusion assembly is fixedly mounted at the top of a cover plate of the treatment cabinet, a driving assembly is fixedly mounted on the outer side face of the treatment cabinet, and two movable parts corresponding in position are movably mounted on the side wall of the driving assembly; the scraper structure is arranged between the extrusion component and the filter plate, so that stacked garbage can be bulldozed after charging and stacking, the scraper can be controlled to transversely move above the filter plate by matching with the arrangement of the driving component, the garbage can be spread at the top of the filter plate, the filter range of the filter plate is widened, and the garbage can be conveniently filtered. The uniformity of squeezing the garbage into cakes is enhanced, and the garbage filtrate collecting effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of landfill leachate treatment technology, and more specifically, to a filter press device for landfill leachate treatment. Background Technology

[0002] With the continuous increase in urban waste generation, landfills and waste treatment plants are expanding in scale. Landfill leachate, as one of the main pollutants in the waste treatment process, has become a key task in the environmental protection field due to its effective treatment. Landfill leachate contains high concentrations of organic matter, ammonia nitrogen, heavy metals, and other harmful substances. Improper treatment can cause serious damage to soil, water bodies, and the ecological environment. Therefore, filter press devices are needed in the treatment process to improve the collection efficiency of landfill leachate.

[0003] Existing filter press devices for landfill leachate treatment often exhibit uneven distribution of filtrate as it enters the filter plates. Due to factors such as the layout of the feed pipe and the structure of the filter plates, the filtrate flows faster in some areas and slower in others, resulting in inconsistent filter cake thickness on the filter plates. This affects the effectiveness of subsequent pressing stages and hinders the full utilization of the filter plate's filtration area, thus reducing filtration efficiency. Therefore, we propose a filter press device for landfill leachate treatment. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a filter press device for landfill leachate treatment, so as to solve the technical problem that the current filter press device has uneven distribution when adding garbage, which affects the uniformity of pressing and the pressing effect.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a filter press device for treating landfill leachate, comprising a treatment cabinet with a cover plate, a squeezing assembly fixedly installed on the top of the cover plate of the treatment cabinet, a driving assembly fixedly installed on the outer side of the treatment cabinet, two movable parts corresponding to each other being movably installed on the side wall of the driving assembly, a scraper fixedly installed between the two movable parts facing each other, and a filter plate cooperating with the squeezing assembly being fixedly installed on the inner wall of the treatment cabinet and below the scraper.

[0006] A flow-guiding protrusion is integrally formed on the inner side of the processing cabinet near the scraper, and the top surface of the flow-guiding protrusion is inclined downward. An L-shaped groove is formed on the side wall of the flow-guiding protrusion to engage with the scraper, and the flow-guiding protrusion is flush with the side of the scraper.

[0007] This invention utilizes a scraper structure between the extrusion assembly and the filter plate to flatten the accumulated waste after feeding. Combined with a drive assembly, the scraper can be controlled to move laterally above the filter plate, allowing the waste to spread out on top. This ensures a uniform thickness of the extruded waste cake during pressing, reducing uneven pressure and increasing the filtration range of the filter plate, thus enhancing the waste pressing and filtering effect. The cooperation between the scraper and the guide protrusions allows for concealment, ensuring smooth movement of the extrusion assembly during pressing.

[0008] Preferably, the movable component includes a movable block, and a mounting groove is vertically formed between adjacent sidewalls of the movable block near the scraper. A spring is installed at the bottom of the mounting groove, and a connecting block that fits into the mounting groove is fixedly provided at the top of the spring.

[0009] Preferably, the mounting groove has a vertically formed T-shaped groove that communicates with the mounting groove near the top of the movable block, and the side end of the connecting block has an integrally formed T-shaped block that engages with the T-shaped groove.

[0010] Preferably, the top two sides of the scraper are integrally formed with connecting plates that are fixedly connected to the side ends of the connecting block, the bottom of the scraper is constructed with a scraper nail plate, and the movable distance between the connecting block and the spring is greater than the distance between the bottom of the scraper nail plate and the top of the filter plate.

[0011] Preferably, the extrusion assembly includes a first hydraulic cylinder, the output end of which is fixedly mounted with a pressure plate that cooperates with the filter plate, and the top four corners of the pressure plate are all fixedly mounted with telescopic rods that are connected to the bottom of the processing cabinet cover. A baffle is fixedly provided on the side of the pressure plate near the feed port of the cover.

[0012] Preferably, a partition plate is fixedly installed between the opposing inner walls of the processing cabinet, which is combined with one side of the filter plate, and the top of the partition plate is provided with a downwardly inclined guide surface. A sealing component that cooperates with the partition plate is fixedly installed on the top of the cover plate of the processing cabinet.

[0013] Preferably, the sealing component includes a second hydraulic cylinder, the output end of which is fixedly mounted with a sealing plate for blocking the movement of garbage, and the bottom of the sealing plate is provided with an inclined surface that is the same as the top guide surface of the partition.

[0014] Preferably, the drive assembly includes fixed boxes on both sides of the processing cabinet. A drive motor is fixedly installed on the inner wall of one side of the fixed box away from the scraper. A lead screw that is rotatably connected to the inner wall of the fixed box is installed at the output end of the drive motor. A limit rod is fixedly installed between the inner walls of the other side of the fixed box. The outer walls of both the lead screw and the limit rod are movably connected to the movable parts.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, by setting a scraper structure between the extrusion assembly and the filter plate, can flatten the accumulated waste after feeding. With the setting of the drive assembly, the scraper can be controlled to move laterally above the filter plate, so that the waste can be spread on the top of the filter plate. In this way, when the extrusion assembly is pressed, the thickness of the extruded waste cake can be kept uniform, reducing the phenomenon of uneven pressing force. At the same time, it also increases the filtration range of the filter plate and enhances the effect of waste pressing and filtration. The cooperation between the scraper and the guide protrusion can be hidden to maintain the smooth movement of the extrusion assembly during the pressing process.

[0017] 2. This utility model also utilizes the movable block, mounting groove, spring, and connecting block structure designed inside the movable parts to allow the scraper to be installed in a downward position. Combined with the downward pressure of the extrusion assembly, the scraper can be pushed downward. When the scraper contacts the top of the filter plate, the movement can push the garbage cake to move. At the same time, during the movement, the surface of the filter plate can be scraped and cleaned, further enhancing the structural fit and improving the flexibility of garbage cake cleaning. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the present invention;

[0021] Figure 4 for Figure 3 Enlarged structural diagram of section A;

[0022] Figure 5 This is a cross-sectional view of the other side of the present invention.

[0023] The following are the labeling instructions in the diagram: 1. Processing cabinet; 101. Guide protrusion; 102. Partition; 2. Extrusion assembly; 201. First hydraulic cylinder; 202. Pressure plate; 203. Telescopic rod; 204. Baffle; 3. Drive assembly; 301. Fixing box; 302. Drive motor; 303. Lead screw; 304. Limiting rod; 4. Moving part; 401. Moving block; 402. Mounting groove; 403. Spring; 404. T-slot; 405. Connecting block; 5. Scraper; 501. Connecting plate; 502. Scraper nail plate; 6. Sealing component; 601. Second hydraulic cylinder; 602. Sealing plate; 7. Filter plate. Detailed Implementation

[0024] like Figures 1 to 5 As shown, this utility model relates to a filter press device for treating landfill leachate, including a treatment cabinet 1 with a cover plate. A squeezing component 2 is fixedly installed on the top of the cover plate of the treatment cabinet 1. A driving component 3 is fixedly installed on the outer side of the treatment cabinet 1. Two movable parts 4 corresponding to each other are movably installed on the side wall of the driving component 3. A scraper 5 is fixedly installed between the two movable parts 4 facing each other. A filter plate 7 that cooperates with the squeezing component 2 is fixedly installed on the inner wall of the treatment cabinet 1 and below the scraper 5. The driving component 3 can control the scraper 5 to move laterally between the squeezing component 2 and the filter plate 7, thereby flattening the garbage accumulated on the top of the filter plate 7, so as to achieve a uniform force effect when the squeezing component 2 is squeezing.

[0025] A guide protrusion 101 is integrally formed on the inner side of the processing cabinet 1 near the scraper 5, and the top surface of the guide protrusion 101 is inclined downward. An L-shaped groove is formed on the side wall of the guide protrusion 101 to engage with the scraper 5, and the guide protrusion 101 is flush with the side of the scraper 5. The guide protrusion 101 can guide the waste to fall to the top of the filter plate 7 when the waste is added to the processing cabinet 1. The engagement of the L-shaped groove with the scraper 5 can hide the position of the scraper 5, so that the squeezing assembly 2 can move smoothly downward.

[0026] In an embodiment of this utility model, the movable component 4 includes a movable block 401. A mounting groove 402 is vertically provided between adjacent side walls of the movable block 401 near the scraper 5. A spring 403 is installed at the bottom of the mounting groove 402, and a connecting block 405 that fits into the mounting groove 402 is fixedly provided at the top of the spring 403. The mounting groove 402 allows the connecting block 405 to move up and down under the support of the spring 403, thereby adjusting the height position of the scraper 5. Under the pressure of the extrusion assembly 2, the height position of the scraper 5 can be adjusted, and it can automatically reset after the pressure is lost.

[0027] In an embodiment of this utility model, a T-shaped groove 404 communicating with the mounting groove 402 is vertically opened near the top of the movable block 401, and a T-shaped block that engages with the T-shaped groove 404 is integrally formed on the side end of the connecting block 405; the cooperation of the two can enhance the position fixation of the connecting block 405 and facilitate vertical movement.

[0028] In the embodiments of this utility model, the top two sides of the scraper 5 are integrally formed with connecting plates 501 that are fixedly connected to the side ends of the connecting block 405. The bottom of the scraper 5 is constructed with a scraper plate 502. The movable distance between the connecting block 405 and the spring 403 is greater than the distance between the bottom of the scraper plate 502 and the top of the filter plate 7. The connection between the connecting plate 501 and the connecting block 405 can achieve the effect of movable cooperation. The lower end of the scraper plate 502 is an arc edge, which can not only achieve the scraping and cleaning effect, but also facilitate docking with the guide protrusion 101. When there is a positional deviation between the two, the position of the arc edge can reduce the moving resistance, making it easier for the scraper 5 to move into the L-shaped groove of the guide protrusion 101.

[0029] In an embodiment of this utility model, the extrusion assembly 2 includes a first hydraulic cylinder 201. A pressure plate 202 that cooperates with the filter plate 7 is fixedly installed at the output end of the first hydraulic cylinder 201. Telescopic rods 203 that are connected to the bottom of the cover plate of the processing cabinet 1 are fixedly installed at the top four corners of the pressure plate 202. A baffle 204 is fixedly provided on the side of the pressure plate 202 near the feed port of the cover plate. Two first hydraulic cylinders 201 are symmetrically arranged to maintain the strength of the downward pressing force.

[0030] In an embodiment of this utility model, a partition 102 is fixedly installed between the opposing inner walls of the processing cabinet 1, which is combined with one side of the filter plate 7. The top of the partition 102 is provided with a downwardly inclined guide surface. A sealing member 6 that cooperates with the partition 102 is fixedly installed on the top of the cover plate of the processing cabinet 1. The sealing member 6 includes a second hydraulic cylinder 601. The output end of the second hydraulic cylinder 601 is fixedly installed with a sealing plate 602 for blocking the movement of garbage. The bottom of the sealing plate 602 is provided with an inclined surface that is the same as the top guide surface of the partition 102. The design of the sealing member 6 can block the garbage at the top of the filter plate 7, and at the same time, it is easy to release the restriction of the blockage and facilitate the garbage cake feeding operation.

[0031] In an embodiment of this utility model, the drive assembly 3 includes fixed boxes 301 fixed on both sides of the processing cabinet 1. A drive motor 302 is fixedly installed on the inner wall of one fixed box 301 away from the scraper 5. A lead screw 303 rotatably connected to the inner wall of the fixed box 301 is installed at the output end of the drive motor 302. A limit rod 304 is fixedly installed between the inner walls of the other fixed box 301. The outer walls of the lead screw 303 and the limit rod 304 are movably connected to the movable part 4. Through cooperation, the movable part 4 can achieve the effect of smooth lateral displacement.

[0032] Working Principle: This embodiment provides a filter press device for treating landfill leachate. First, waste is added to the treatment tank 1 through the feeding port on the cover plate. The waste automatically falls down the inclined surface at the top of the guide protrusion 101 onto the top of the filter plate 7. When a certain accumulation is reached, waste feeding is stopped. Then, the drive assembly 3 is activated. With the cooperation of the drive motor 302 and the lead screw 303, the movable part 4 is controlled to move the scraper 5, causing the scraper 5 to separate from the guide protrusion 101. During this movement, the accumulated waste is pushed forward, allowing it to spread evenly on the top of the filter plate 7, thus further expanding the filtration range. When the scraper 5 moves to the position of the sealing plate 602, it can move back in the opposite direction, re-engaging with the guide protrusion 101. Then, the pressing assembly 2 is activated, allowing the waste to... The pressing plate 202 presses down to squeeze the waste, allowing the liquid adsorbed in the waste to be squeezed out and flow down the filter screen of the filter plate 7, thus squeezing the waste into a cake. After completion, the squeezing assembly 2 can be reset. At the same time, the operation of the second hydraulic cylinder 601 will move the control sealing plate 602 upward, and then control the scraper 5 to move again. When the scraper 5 moves out of the L-shaped groove of the guide protrusion 101, the squeezing assembly 2 can be restarted to move it downward to squeeze the scraper 5 downward. At the same time, the spring 403 inside the moving part 4 is squeezed and contracts, so that the lower end of the scraper 5 can be moved down to a position that fits against the top of the filter plate 7. Then, the movement of the scraper 5 can push the waste cake to a position. At the same time, the scraper plate 502 scrapes and cleans the surface of the filter plate 7, thus completing the cleaning operation of the waste cake and further improving the effect of the structure.

[0033] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A filter press device for treating landfill leachate, characterized in that, The system includes a processing cabinet (1) with a cover plate. An extrusion assembly (2) is fixedly installed on the top of the cover plate of the processing cabinet (1). A drive assembly (3) is fixedly installed on the outer side of the processing cabinet (1). Two movable parts (4) corresponding to each other are movably installed on the side wall of the drive assembly (3). A scraper (5) is fixedly installed between the two movable parts (4) facing each other. A filter plate (7) cooperating with the extrusion assembly (2) is fixedly installed on the inner wall of the processing cabinet (1) and below the scraper (5). The processing cabinet (1) has an integrally formed guide protrusion (101) on the inner side near the scraper (5), and the top surface of the guide protrusion (101) is inclined downward. An L-shaped groove is opened on the side wall of the guide protrusion (101) to engage with the scraper (5), and the guide protrusion (101) is flush with the side of the scraper (5).

2. The filter press device for treating landfill leachate according to claim 1, characterized in that, The movable component (4) includes a movable block (401), and the movable block (401) has a vertically formed mounting groove (402) between adjacent side walls near the scraper (5). A spring (403) is installed at the bottom of the mounting groove (402), and a connecting block (405) that fits into the mounting groove (402) is fixedly provided at the top of the spring (403).

3. The filter press device for treating landfill leachate according to claim 2, characterized in that, The mounting groove (402) is vertically provided with a T-shaped groove (404) that communicates with the mounting groove (402) near the top of the movable block (401), and the side end of the connecting block (405) is integrally formed with a T-shaped block that is combined with the T-shaped groove (404).

4. The filter press device for treating landfill leachate according to claim 2, characterized in that, The top two sides of the scraper (5) are integrally formed with connecting plates (501) that are fixedly connected to the side of the connecting block (405). The bottom of the scraper (5) is constructed with a scraper plate (502). The movable distance between the connecting block (405) and the spring (403) is greater than the distance between the bottom of the scraper plate (502) and the top of the filter plate (7).

5. The filter press device for treating landfill leachate according to claim 1, characterized in that, The extrusion assembly (2) includes a first hydraulic cylinder (201), and a pressure plate (202) that cooperates with the filter plate (7) is fixedly installed at the output end of the first hydraulic cylinder (201). The top four corners of the pressure plate (202) are all fixedly installed with telescopic rods (203) that are connected to the bottom of the cover plate of the processing cabinet (1). A baffle (204) is fixedly provided on the side of the pressure plate (202) near the feed port of the cover plate.

6. The filter press device for treating landfill leachate according to claim 1, characterized in that, A partition (102) is fixedly installed between the inner walls of the processing cabinet (1) and is connected to one side of the filter plate (7). The top of the partition (102) is provided with a downwardly inclined guide surface. A sealing member (6) that cooperates with the partition (102) is fixedly installed on the top of the cover plate of the processing cabinet (1).

7. The filter press device for treating landfill leachate according to claim 6, characterized in that, The sealing component (6) includes a second hydraulic cylinder (601), and the output end of the second hydraulic cylinder (601) is fixedly installed with a sealing plate (602) for blocking the movement of garbage, and the bottom of the sealing plate (602) is provided with an inclined surface that is the same as the top guide surface of the partition (102).

8. The filter press device for treating landfill leachate according to claim 1, characterized in that, The drive assembly (3) includes a fixed box (301) fixed on both sides of the processing cabinet (1). A drive motor (302) is fixedly installed on the inner wall of the fixed box (301) away from the scraper (5). A lead screw (303) rotatably connected to the inner wall of the fixed box (301) is installed at the output end of the drive motor (302). A limit rod (304) is fixedly installed between the inner walls of the fixed box (301) on the other side. The outer walls of the lead screw (303) and the limit rod (304) are movably connected to the movable part (4).

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