A filter device for treating a landfill leachate
By introducing a sliding and snap-fit installation mechanism into the landfill leachate filtration device, combined with a motor-driven filtration assembly, the problems of filter structure clogging and inconvenient disassembly are solved, achieving efficient and safe filtration and improving work efficiency and filtration effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG KETE ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-24
AI Technical Summary
Existing landfill leachate filtration devices are prone to clogging after prolonged use, and the filter structure is inconvenient to disassemble, affecting work efficiency. The use of chemical agents is also difficult to control, increasing the difficulty of treatment.
The installation mechanism, which employs sliding and snap-fit components, combined with a motor-driven filter assembly, enables quick disassembly and replacement of the screen. The metering valve precisely controls the addition of chemicals, ensuring the airtightness and safety of the filtration process.
It improves equipment maintenance efficiency and ease of operation, enhances filtration effect, ensures the stability and safety of the filtration process, and improves work efficiency and processing efficiency.
Smart Images

Figure CN224541226U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste treatment technology, and in particular to a filtration device for treating landfill leachate. Background Technology
[0002] Landfill leachate refers to a high-concentration organic wastewater formed from the moisture contained in the landfill itself, rainwater and snowmelt entering the landfill, and other moisture, after deducting the saturated water holding capacity of the landfill and the topsoil layer, and passing through the landfill and topsoil layers. It also includes water seeping from accumulated landfill waste prepared for incineration. Landfill leachate contains a large number of impurities, so it needs to be treated before it can be discharged.
[0003] By pouring leachate into a filtration device, impurities in the leachate are filtered out and removed, allowing the leachate to meet discharge standards and thus reducing environmental pollution. The treatment by the filtration device not only effectively solves the environmental pollution problem caused by landfill leachate, but also provides reliable technical support for the recycling of water resources, playing an important role in environmental protection.
[0004] However, after prolonged use, many impurities can clog the filter plates and screens, affecting the filtration effect. Furthermore, the filter structure is fixed with screws, making disassembly inconvenient and causing prolonged downtime during replacement and cleaning, thus affecting work efficiency. At the same time, the use of chemical agents is uncontrollable, increasing the difficulty of subsequent treatment. Therefore, a filtration device for landfill leachate treatment is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a filtration device for landfill leachate treatment, which aims to improve the problem that the fixed installation method of the filtration structure in the prior art makes it inconvenient to disassemble and replace, thus affecting work efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A filtration device for treating landfill leachate includes a base plate, a sewage tank and a filter tank are fixedly connected to the top of the base plate, a discharge pipe is fixedly connected to the bottom of the filter tank, a sealing cover is installed on the top of the filter tank, two injection pipes are fixedly connected to the top of the sealing cover, a filter assembly is provided inside the filter tank, an installation mechanism is provided inside the sewage tank, and a fence is installed inside the installation mechanism.
[0008] The installation mechanism includes a sliding component and a snap-fit component. The sliding component includes two fixed rods, both of which are fixedly connected to the inside of the sewage tank. Each of the two fixed rods has a sliding groove on one side, and the fence is slidably connected between the two sliding grooves.
[0009] As a further description of the above technical solution:
[0010] The snap-fit assembly includes a housing, which is fixedly connected to one side of the fixing rod. A pin is slidably connected inside the housing. A fixing hole is provided on one side of the fence, and the pin is snapped into the fixing hole.
[0011] As a further description of the above technical solution:
[0012] The filter assembly includes a rotating rod rotatably connected to the bottom of the filter tank, a square block fixedly connected to the top of the rotating rod, the square block being located inside the filter tank, a filter bucket rotatably connected inside the filter tank, the filter bucket being snapped into the top of the square block, a motor installed at the bottom of the filter tank, a gear fixedly connected to the output end of the motor, and another gear fixedly connected to the middle of the rotating rod, the two gears meshing with each other;
[0013] As a further description of the above technical solution:
[0014] Multiple telescopic rods are fixedly connected to the inside of the filter tank, and an annular block is fixedly connected to one end of each of the multiple telescopic rods. The annular block abuts against the outer wall of the filter tank.
[0015] As a further description of the above technical solution:
[0016] A metering valve is installed in the middle of both injection pipes. A medicine tank is fixedly connected to the top of one injection pipe, and a hose is fixedly connected to the top of the other injection pipe. A water pump is fixedly connected to one end of the hose, and the water pump is installed inside the sewage tank.
[0017] As a further description of the above technical solution:
[0018] A hinge is fixedly connected to one side of the filter canister, and the other side of the hinge is fixedly connected to one side of the sealing cover. A buckle is installed between the filter canister and the sealing cover.
[0019] As a further description of the above technical solution:
[0020] A pull ring is fixedly connected to one end of the pin, a baffle is fixedly connected to the middle of the pin, and a spring is sleeved on the outside of the pin;
[0021] As a further description of the above technical solution:
[0022] A handle is fixedly connected to the top of the sealing cap.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, an installation mechanism with sliding and snap-fit components is installed inside the sewage tank, allowing the guardrail to slide smoothly and be accurately positioned along the groove on the fixed rod. Simultaneously, the engagement of the pin and the fixing hole enables rapid fixing and disassembly of the guardrail. This structure not only enhances the stability of the guardrail during use and effectively intercepts large particles of impurities, but also facilitates subsequent cleaning or replacement of the guardrail, significantly improving equipment maintenance efficiency and operational convenience. Furthermore, the presence of two installation mechanisms allows for replacement without shutting down the system, further improving work efficiency.
[0025] 2. In this utility model, the filter assembly is driven by a motor to achieve high-speed rotation of the filter barrel, utilizing centrifugal force to achieve efficient filtration of the injected liquid. The structural design of the telescopic rod and annular block provides uniform support to the outer wall of the filter barrel, improving operational stability. Simultaneously, the metering valve precisely controls the injection ratio of chemicals and wastewater, and the hinge and snap-fit structure of the sealing cap ensures the airtightness and safety of the entire filtration process, effectively improving treatment efficiency and operational reliability. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a filtration device for treating landfill leachate according to the present invention.
[0027] Figure 2 This is a schematic diagram of the structure of the grating of a filtration device for treating landfill leachate according to the present invention;
[0028] Figure 3 This is a schematic diagram of the reagent tank of a filtration device for landfill leachate treatment proposed in this utility model;
[0029] Figure 4 This is a cross-sectional view of the snap-fit assembly of a filtration device for treating landfill leachate according to the present invention.
[0030] Figure 5 This is a cross-sectional view of the filter assembly of a filtration device for treating landfill leachate according to the present invention.
[0031] Legend:
[0032] 1. Base plate; 2. Sewage tank; 3. Filter tank; 4. Sealing cover; 5. Handle; 6. Hinge; 7. Fixing rod; 8. Fence; 9. Outer shell; 10. Water pump; 11. Hose; 12. Chemical tank; 13. Slide groove; 14. Fixing hole; 15. Pull ring; 16. Buckle; 17. Injection pipe; 18. Metering valve; 19. Filter barrel; 20. Rotating rod; 21. Square block; 22. Discharge pipe; 23. Motor; 24. Gear; 25. Pin; 26. Telescopic rod; 27. Ring block; 28. Spring; 29. Baffle. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figure 1 , Figure 2 and Figure 4 The present invention provides an embodiment of a filtration device for treating landfill leachate, comprising a base plate 1, the filtration device being installed on the top of the base plate 1, a sewage tank 2 and a filter tank 3 being fixedly connected to the top of the base plate 1, the leachate being contained in the sewage tank 2, and the leachate being initially filtered through the internal structure of the sewage tank 2, the bottom of the filter tank 3 being fixedly connected to a discharge pipe 22, the discharge pipe 22 discharging the filtered liquid, the top of the filter tank 3 being fitted with a sealing cover 4, the sealing cover 4 allowing the filter tank 3 to operate in a sealed environment to prevent liquid splashing, the top of the sealing cover 4 being fixedly connected to two injection pipes 17, the two injection pipes 17 being used to inject leachate and a reagent respectively, the filter tank 3 being provided with a filtration assembly, the sewage tank 2 being provided with an installation mechanism, the installation mechanism being provided with a grid 8, the grid 8 intercepting larger debris on the leachate inside the sewage tank 2 for initial filtration;
[0035] The installation mechanism includes a sliding assembly and a snap-fit assembly. The sliding assembly includes two fixed rods 7, both of which are fixedly connected to the inside of the sewage tank 2. Each of the two fixed rods 7 has a groove 13 on one side. The fence 8 is slidably connected between the two grooves 13. The grooves 13 on the two fixed rods 7 provide a stable sliding track, allowing the fence 8 to slide internally and facilitating its disassembly. The snap-fit assembly includes a housing 9, which is fixedly connected to one side of the fixed rods 7, protecting the internal structure. A pin 25 is slidably connected inside the housing 9. A fixing hole 14 is provided on one side of the fence 8, and the pin 25 is snapped into the fixing hole 14, allowing the fence 8 to be fixed or released by sliding the pin 25. A pull ring 15 is fixedly connected to one end of the pin 25, a baffle 29 is fixedly connected to the middle of the pin 25, and a spring 28 is sleeved on the outside of the pin 25. When it is necessary to clean the debris intercepted on the fence 8, pull the pull ring 15 to make the pin 25 exit the fixing hole 14, and the fence 8 can be slid upward along the slide groove 13 out of the sewage tank 2 for cleaning or replacement.
[0036] Reference Figure 1 and Figure 5The filter assembly includes a rotating rod 20, which is rotatably connected to the bottom of the filter tank 3. A square block 21 is fixedly connected to the top of the rotating rod 20. The rotation of the rotating rod 20 drives the square block 21 to rotate. The square block 21 is located inside the filter tank 3. A filter barrel 19 is rotatably connected inside the filter tank 3. The filter barrel 19 is snapped onto the top of the square block 21. The square block 21 drives the filter barrel 19 inside the filter tank 3 to rotate, accelerating filtration. A motor 23 is installed at the bottom of the filter tank 3. A gear 24 is fixedly connected to the output end of the motor 23. The gear 24 is driven to rotate by the motor 23. Another gear 24 is fixedly connected to the middle of the rotating rod 20. The two gears 24 mesh with each other, and one gear 24 drives the other gear 24 to rotate. Multiple telescopic rods 26 are fixedly connected to the inside of the filter tank 3. One end of each telescopic rod 26 is fixedly connected to an annular block 27. The annular block 27 abuts against the outer wall of the filter barrel 19. The telescopic rods 26 and the annular block 27 cooperate with each other to make the filter barrel 19 more stable when rotating and reduce wear. The filter barrel 19 is driven to rotate by the motor 23, so that the internal reagents and sewage are mixed at the same time as filtration, thereby improving the filtration efficiency.
[0037] Reference Figure 1 and Figure 3 Both injection pipes 17 are equipped with metering valves 18 in the middle. One metering valve 18 controls the sewage delivery rate, and the other metering valve 18 controls the amount of chemicals added. A chemical tank 12 is fixedly connected to the top of one injection pipe 17, through which chemicals are added into the filter tank 3 to improve the filtration effect. A hose 11 is fixedly connected to the top of the other injection pipe 17, and a water pump 10 is fixedly connected to one end of the hose 11. The water pump 10 is installed inside the sewage tank 2 and uses the water pump 10 to transport sewage from the sewage tank 2 into the filter tank 3 through the hose 11. A hinge 6 is fixedly connected to one side of the filter tank 3, and the other side of the hinge 6 is fixedly connected to the side of the sealing cover 4. The hinge 6 allows the sealing cover 4 on the top of the filter tank 3 to rotate, making it easy to remove and clean the internal filter bucket 19. A buckle 16 is installed between the filter tank 3 and the sealing cover 4, and the buckle 16 is used to fix the sealing cover 4 to the top of the filter tank 3. A handle 5 is fixedly connected to the top of the sealing cover 4, and the sealing cover 4 is opened by using the handle 5.
[0038] Working principle: First, the leachate to be treated is poured into the sewage tank 2. Larger impurities in the leachate are filtered through the screens 8 inside the sewage tank 2. After the screens 8 have been used for a long time, a new screen 8 can be placed inside an installation mechanism. Then, pull the pull ring 15, which moves the pin 25. The pin 25 is moved out of the fixing hole 14 on one side of the screen 8, and the screen 8 can be taken out along the slide 13. At the same time, another screen 8 on one side can also intercept impurities on the sewage. Replacement and cleaning can be carried out without stopping the machine, which is very convenient.
[0039] Secondly, during operation, the motor 23 is started, which drives the gear 24 at the output end to rotate, thereby driving the gear 24 on the rotating rod 20 to rotate, which in turn drives the rotating rod 20 to rotate. The rotation of the rotating rod 20 drives the filter barrel 19 inside the filter tank 3 to rotate. The rotation of the filter barrel 19 accelerates the filtration of sewage and improves the filtration efficiency. At the same time, the multiple telescopic rods 26 on the upper part of the filter tank 3 restrict the movement of the filter barrel 19 through the annular block 27 at one end, preventing the filter barrel 19 from shaking when rotating and affecting the filtration effect.
[0040] Wastewater from the wastewater tank 2 is pumped into the filter tank 3 through the hose 11 by the water pump 10. The wastewater is filtered by the filter tank 3. At the same time, chemicals are injected into the filter tank 3 through the chemical tank 12 on the sealing cover 4 to accelerate the wastewater filtration efficiency and ensure that the discharged water meets the standards and does not pollute the environment.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A filtration device for treating landfill leachate, comprising a base plate (1), characterized in that: The bottom plate (1) is fixedly connected to the top of the sewage tank (2) and the filter tank (3). The bottom of the filter tank (3) is fixedly connected to the discharge pipe (22). The top of the filter tank (3) is equipped with a sealing cover (4). The top of the sealing cover (4) is fixedly connected to two injection pipes (17). The filter tank (3) is equipped with a filter assembly. The sewage tank (2) is equipped with an installation mechanism. The installation mechanism is equipped with a fence (8). The installation mechanism includes a sliding component and a snap-fit component. The sliding component includes two fixed rods (7), both of which are fixedly connected to the inside of the sewage tank (2). Each of the two fixed rods (7) has a sliding groove (13) on one side, and the fence (8) is slidably connected between the two sliding grooves (13).
2. The filtration device for landfill leachate treatment according to claim 1, characterized in that: The snap-fit assembly includes a housing (9), which is fixedly connected to one side of the fixing rod (7). A pin (25) is slidably connected inside the housing (9). A fixing hole (14) is provided on one side of the fence (8), and the pin (25) is snapped into the fixing hole (14).
3. A filtration device for landfill leachate treatment according to claim 1, characterized in that: The filter assembly includes a rotating rod (20) rotatably connected to the bottom of the filter tank (3). A square block (21) is fixedly connected to the top of the rotating rod (20). The square block (21) is located inside the filter tank (3). A filter barrel (19) is rotatably connected inside the filter tank (3). The filter barrel (19) is snapped onto the top of the square block (21). A motor (23) is installed at the bottom of the filter tank (3). A gear (24) is fixedly connected to the output end of the motor (23). Another gear (24) is fixedly connected to the middle of the rotating rod (20). The two gears (24) mesh with each other.
4. A filtration device for landfill leachate treatment according to claim 3, characterized in that: Multiple telescopic rods (26) are fixedly connected to the inside of the filter tank (3), and an annular block (27) is fixedly connected to one end of each of the multiple telescopic rods (26). The annular block (27) abuts against the outer wall of the filter barrel (19).
5. A filtration device for landfill leachate treatment according to claim 1, characterized in that: A metering valve (18) is installed in the middle of both injection pipes (17). A medicine tank (12) is fixedly connected to the top of one injection pipe (17), and a hose (11) is fixedly connected to the top of the other injection pipe (17). A water pump (10) is fixedly connected to one end of the hose (11), and the water pump (10) is installed inside the sewage tank (2).
6. A filtration device for landfill leachate treatment according to claim 1, characterized in that: A hinge (6) is fixedly connected to one side of the filter tank (3), and the other side of the hinge (6) is fixedly connected to one side of the sealing cover (4). A buckle (16) is installed between the filter tank (3) and the sealing cover (4).
7. A filtration device for landfill leachate treatment according to claim 2, characterized in that: One end of the pin (25) is fixedly connected to a pull ring (15), a baffle (29) is fixedly connected to the middle of the pin (25), and a spring (28) is sleeved on the outside of the pin (25).
8. A filtration device for landfill leachate treatment according to claim 6, characterized in that: The top of the sealing cap (4) is fixedly connected to a handle (5).