Landfill leachate treatment device

Abstract

The utility model discloses a landfill leachate treatment device relates to leachate treatment technical field, aims at solving the technical problem of current filter structure cleaning inconvenience, influence leachate treatment efficiency, including processing box and the filter mechanism of rotating installation in processing box and the cleaning mechanism of processing box side end arrangement, the filter seal piece includes filter plate, sealing cover and grating plate, the sealing cover is bent ninety degrees and is arranged in the terminal of filter plate, the cleaning mechanism includes screw rod, is threadedly installed with moving block on the screw rod, and the bottom surface of moving block is provided with cleaning spare. The utility model has the advantages of not needing to disassemble filter structure, and the part to be cleaned can be exposed by the filter seal piece overturning, and the cleaning spare is moved and cleaned in combination with the adaptation, the shutdown time is shortened, and the filter plate wave shape design increases the contact area, and the grating plate and filter plate are filtered in stages, and the garbage groove is also provided for temporary storage of impurities, and the filtering effect and cleaning convenience are improved.

Description

Technical Field

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

[0002] Leachate refers to liquid wastewater containing large amounts of pollutants generated during the stockpiling, landfilling, or disposal of solid waste through rainwater leaching, the release of its own moisture, and microbial decomposition. Its core sources are landfills, fly ash landfill areas of waste incineration plants, and composting facilities. Landfill leachate is the most typical example due to its large volume and significant hazards. If discharged directly without treatment, it will severely pollute soil, groundwater, and surface water, damage ecosystems, and even threaten human health through the food chain. Given the polluting characteristics of leachate, a combined process of "pretreatment + biochemical treatment + advanced treatment" must be used for purification to reduce pollutant concentrations to emission standards before discharge or reuse. This is a crucial step in preventing secondary pollution during solid waste disposal.

[0003] Leachate treatment begins with filtration to remove suspended impurities, colloidal particles, and some organic matter, reducing the load on subsequent biochemical treatment. Currently, landfill leachate treatment devices primarily use filtration structures to intercept leachate. However, the high impurity content in leachate affects filtration efficiency and can clog the filtration structure, often requiring cleaning. Since the filtration structure is located inside the device, it needs to be disassembled, cleaned, and reinstalled, making the cleaning process cumbersome and impacting leachate treatment efficiency. Therefore, we propose a landfill leachate treatment device. 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 landfill leachate treatment device to solve the technical problem that the current filter structure is inconvenient to clean and affects the leachate treatment efficiency.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a landfill leachate treatment device, comprising a treatment tank, a rotatably installed filter mechanism inside the treatment tank, and a cleaning mechanism provided on the side of the treatment tank. The filter mechanism includes a filter seal rotatably installed inside the treatment tank. A motor for driving the filter seal is provided on the front of the treatment tank. The filter seal includes a filter plate, a sealing cover plate, and a grid plate. The sealing cover plate is bent at ninety degrees and located at the end of the filter plate. The cleaning mechanism includes a screw, a moving block is threaded onto the screw, and a cleaning component is provided on the bottom surface of the moving block. The cleaning component includes a first cleaning plate and a second cleaning plate.

[0006] Preferably, the top surface of the treatment box is provided with an inlet pipe, the lower part of the side end of the treatment box is provided with an outlet pipe, and the bottom inner wall of the treatment box is inclined downward toward the outlet pipe.

[0007] Preferably, the connection between the filter plate and the sealing cover is the axis of rotation, the grid plate is disposed on the front of the sealing cover and is located above the filter plate, the filter plate is generally in the shape of an upwardly convex arc, and the filter plate is provided with several arc bends along the long axis direction, the several arc bends forming a wave shape of the filter plate.

[0008] Preferably, the front of the sealing cover is provided with an arc-shaped protrusion, the bottom surface of the arc-shaped protrusion is horizontal, the arc-shaped protrusion and the grid plate form a second garbage trough, and the filter plate and the grid plate form a first garbage trough.

[0009] Preferably, mounting plates are symmetrically arranged at the upper side of the processing box, the screw is rotatably mounted between the mounting plates, and a crank handle is rotatably mounted on the mounting plates, the crank handle being connected to the axis of the screw.

[0010] Preferably, a grid channel is formed between the first cleaning plate and the second cleaning plate, and the front end of the first cleaning plate is provided with a plurality of arc-shaped portions that are recessed inward, the shape of the arc-shaped portions being adapted to the shape of the arc bend.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the design of the cleaning component structure, uses a motor-driven filter sealing component to rotate around the connection between the filter plate and the sealing cover plate, directly rotating the filter plate and grid plate with attached impurities out of the treatment box. By moving the cleaning component adapted to the filter structure, the filter plate and grid plate can be cleaned without disassembling the filter structure, avoiding the cumbersome process of "disassembly-cleaning-reset". After cleaning, only the reverse drive motor is needed to reset the filter mechanism, greatly shortening the downtime for cleaning, ensuring the continuity of leachate treatment, significantly improving the overall treatment efficiency, and solving the problem that the inconvenience of cleaning the current filter structure affects the leachate treatment efficiency.

[0012] 2. This utility model also improves the interception effect of suspended impurities and colloidal particles by designing a filter sealing component structure. The filter plate of the filter sealing component adopts an upward convex wave-shaped design, which increases the contact area with leachate through several arc bends, extends the liquid filtration path, and improves the interception effect of suspended impurities and colloidal particles. Secondly, the grid plate and the filter plate form a dual filtration structure. The grid plate first intercepts large particles of impurities, and the filter plate then deeply filters fine impurities. The graded filtration mode reduces the load on subsequent biochemical treatment. The sealing cover of the filter sealing component can close the treatment box while filtering to ensure airtightness. The arc protrusion on the sealing cover and the grid plate form a second waste trough, and the filter plate and the grid plate form a first waste trough. During the flipping process of the filter mechanism, impurities can automatically fall into the two types of waste troughs for temporary storage, avoiding the direct scattering of impurities and causing secondary pollution. This ensures filtration efficiency while facilitating the cleaning of impurities and waste. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the filter mechanism structure of this utility model; Figure 5 This is a schematic diagram of the cleaning component structure of this utility model; Figure 6 This is a schematic diagram of one usage state of the present invention.

[0014] The following are the labels in the diagram: 101, processing tank; 102, inlet pipe; 103, outlet pipe; 200, cleaning mechanism; 201, mounting plate; 202, screw; 203, crank handle; 204, moving block; 205, cleaning component; 206, first cleaning plate; 2061, arc-shaped part; 207, second cleaning plate; 300, filtration mechanism; 301, filter seal; 302, motor; 303, filter plate; 304, sealing cover; 3041, arc-shaped protrusion; 3042, second garbage trough; 3043, first garbage trough; 305, grating plate. Detailed Implementation

[0015] like Figures 1 to 6As shown, this utility model relates to a landfill leachate treatment device, including a treatment tank 101, a rotatably mounted filter mechanism 300 inside the treatment tank 101, and a cleaning mechanism 200 provided on the side of the treatment tank 101. The filter mechanism 300 includes a filter seal 301 rotatably mounted inside the treatment tank 101. A motor 302 for driving the filter seal 301 is provided on the front of the treatment tank 101. The filter seal 301 includes a filter plate 303, a sealing cover plate 304, and a grid plate 305. The sealing cover plate 304 is bent at ninety degrees and provided at the end of the filter plate 303. The cleaning mechanism 200 includes a screw 202. A moving block 204 is threadedly mounted on the screw 202. A cleaning component 205 is provided on the bottom surface of the moving block 204. The cleaning component 205 includes a first cleaning plate 206 and a second cleaning plate 207. This utility model eliminates the need to disassemble the filter structure. The part to be cleaned can be exposed by flipping the filter seal 301. It can then be moved and cleaned with the matching cleaning part 205, shortening downtime. Furthermore, the wave-shaped design of the filter plate 303 increases the contact area. The grid plate 305 and the filter plate 303 perform graded filtration. A waste bin is also provided to temporarily store impurities, improving the filtration effect and cleaning convenience.

[0016] Specifically, the top surface of the treatment tank 101 is provided with an inlet pipe 102, and the lower side of the treatment tank 101 is provided with a drain pipe 103. The bottom inner wall of the treatment tank 101 is inclined downward toward the drain pipe 103. The inlet pipe 102 provides a channel for the leachate to enter the device, and the drain pipe 103 is used to discharge the filtered leachate. The inclined bottom inner wall can accelerate the liquid flow by gravity and avoid liquid accumulation.

[0017] Furthermore, the connection between the filter plate 303 and the sealing cover plate 304 is the axis of rotation. The grid plate 305 is located on the front of the sealing cover plate 304 and is positioned above the filter plate 303. The filter plate 303 has an upwardly convex arc shape, and several arc-shaped bends are arranged along its long axis, forming a wave shape. The axis of rotation design provides support for the flipping of the filter seal 301. The wave-shaped filter plate 303 increases the contact area with the leachate, improving filtration efficiency. The grid plate 305 can initially intercept large particulate impurities.

[0018] It is worth noting that the front of the sealing cover 304 is provided with an arc-shaped protrusion 3041, the bottom surface of which is horizontal. The arc-shaped protrusion 3041 and the grid plate 305 form a second waste trough 3042, and the filter plate 303 and the grid plate 305 form a first waste trough 3043. In the filtration state, the arc-shaped protrusion 3041 can guide the leachate, and the grid plate 305 can initially intercept large particles of impurities. During cleaning, the filter seal 301 is rotated 90 degrees to the cleaning state. During the rotation, some impurities on the arc-shaped protrusion 3041 and the grid plate 305 will fall into the first waste trough 3043 and the second waste trough 3042, realizing the classification and temporary storage of impurities. This prevents impurities and garbage on the grid plate 305 from falling directly to the ground due to gravity when the grid plate 305 is rotated, facilitating subsequent cleaning work.

[0019] It is worth mentioning that mounting plates 201 are symmetrically arranged at the upper side of the processing box 101. A screw 202 is rotatably mounted between the mounting plates 201, and a crank handle 203 is rotatably mounted on the mounting plates 201, connected to the axis of the screw 202. The mounting plates 201 provide stable mounting support for the screw 202. By rotating the crank handle 203, the screw 202 can be driven to rotate, thereby realizing the linear movement of the moving block 204, which in turn moves the cleaning component 205 to perform cleaning work.

[0020] It is worth noting that a grid channel is formed between the first cleaning plate 206 and the second cleaning plate 207. The front end of the first cleaning plate 206 is provided with several inwardly curved portions 2061, the shape of which matches the shape of the curved portion 2061. The grid channel can be adapted to the thickness of the grid plate 305. During the cleaning operation, a garbage collection container is set at the corresponding position on the ground, and the cleaning component 205 is driven to move. The first cleaning plate 206 can scrape off impurities and garbage in the filter plate 303 and the first garbage trough 3043. The curved portion 2061 of the first cleaning plate 206 fits the curved shape of the filter plate 303, which can more thoroughly scrape off the impurities attached to the surface of the filter plate 303 and improve the cleaning effect. The second cleaning plate 207 can scrape off impurities and garbage in the grid plate 305 and the second garbage trough 3042, so that the impurities on the filter structure are cleaned into the container. Then the filter structure can be flipped back into the processing box 101.

[0021] Working Principle: This embodiment provides a landfill leachate treatment device. In use, the leachate enters the treatment tank 101 through the inlet pipe 102 on the top surface of the treatment tank 101. It first contacts the grid plate 305 in the filtration mechanism 300, which initially intercepts large particles of impurities in the leachate. Subsequently, the leachate flows through the filter plate 303, which has an upwardly convex wavy shape, increasing the contact area with the leachate and effectively intercepting suspended impurities, colloidal particles, and some organic matter. The filtered leachate, guided by the inclined inner wall at the bottom of the treatment tank 101, flows along the inclined direction. The wastewater is discharged through the drain pipe 103 at the lower side end, reducing the load on subsequent biochemical treatment. When the impurities attached to the filter mechanism 300 affect the filtration efficiency, the motor 302 on the front of the treatment box 101 is started. The motor 302 drives the filter seal 301 to rotate around the connection between the filter plate 303 and the sealing cover 304 until the filter seal 301 is rotated 90 degrees to a cleaning state. During the rotation process, some impurities on the grid plate 305 and the sealing cover 304 will fall into the first waste trough 3043 between the filter plate 303 and the grid plate 305 and the sealing cover 304 under the action of gravity. Temporary storage is achieved in the second garbage trough 3042 between the arc-shaped protrusion 3041 of 4 and the grid plate 305. At this time, a garbage collection container is placed on the ground outside the processing box 101 at the position corresponding to the cleaning mechanism 200. The crank 203 on the mounting plate 201 is rotated, and the crank 203 drives the screw 202 to rotate. Since the moving block 204 is threadedly connected to the screw 202, the rotation of the screw 202 drives the moving block 204 to move linearly along the length of the screw 202, thereby driving the cleaning component 205 on the bottom surface of the moving block 204 to move synchronously. The arc-shaped part 2061 at the front end of the first cleaning plate 206 in the cleaning component 205... Adapted to the arc-shaped bending shape of the filter plate 303, it can closely fit the surface of the filter plate 303 during movement, thoroughly scraping away impurities in the filter plate 303 and the first waste bin 3043. At the same time, the second cleaning plate 207 adapts to the thickness of the grid plate 305 through the grid channel between it and the first cleaning plate 206, scraping away impurities in the grid plate 305 and the second waste bin 3042. The scraped impurities fall directly into the collection container below. After cleaning is completed, the reverse start motor 302 drives the filter seal 301 to flip and reset into the treatment box 101, thus restoring the leachate filtration treatment.

[0022] 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 landfill leachate treatment device, characterized in that, The system includes a processing box (101), a filtration mechanism (300) rotatably installed inside the processing box (101), and a cleaning mechanism (200) provided on the side of the processing box (101). The filtration mechanism (300) includes a filter seal (301) rotatably installed inside the processing box (101). A motor (302) for driving the filter seal (301) is provided on the front of the processing box (101). The filter seal (301) includes a filter plate (303), a sealing cover plate (304), and a grid plate (305). The sealing cover plate (304) is bent at ninety degrees and provided at the end of the filter plate (303). The cleaning mechanism (200) includes a screw (202). A moving block (204) is threaded on the screw (202). A cleaning component (205) is provided on the bottom surface of the moving block (204). The cleaning component (205) includes a first cleaning plate (206) and a second cleaning plate (207).

2. The landfill leachate treatment device according to claim 1, characterized in that, The top surface of the processing box (101) is provided with an inlet pipe (102), and the lower side of the processing box (101) is provided with a drain pipe (103). The bottom inner wall of the processing box (101) is inclined downward toward the drain pipe (103).

3. The landfill leachate treatment device according to claim 2, characterized in that, The connection between the filter plate (303) and the sealing cover plate (304) is the axis of rotation. The grid plate (305) is set on the front of the sealing cover plate (304) and the grid plate (305) is located above the filter plate (303). The filter plate (303) is generally in the shape of an upward convex arc. The filter plate (303) has several arc bends along the long axis direction. The several arc bends form a wave shape for the filter plate (303).

4. The landfill leachate treatment device according to claim 3, characterized in that, The sealing cover (304) has an arc-shaped protrusion (3041) on its front side. The bottom surface of the arc-shaped protrusion (3041) is horizontal. The arc-shaped protrusion (3041) and the grid plate (305) form a second garbage trough (3042). The filter plate (303) and the grid plate (305) form a first garbage trough (3043).

5. A landfill leachate treatment device according to claim 4, characterized in that, The processing box (101) is symmetrically provided with mounting plates (201) at the upper side. The screw (202) is rotatably mounted between the mounting plates (201). A crank handle (203) is rotatably mounted on the mounting plate (201). The crank handle (203) is connected to the axis of the screw (202).

6. The landfill leachate treatment device according to claim 5, characterized in that, A grid channel is formed between the first cleaning plate (206) and the second cleaning plate (207). The front end of the first cleaning plate (206) is provided with several arc-shaped portions (2061) that are recessed inward. The shape of the arc-shaped portions (2061) is adapted to the shape of the arc bend.

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