Garbage pool percolate grating plate dredging device
By designing a grating plate dredging device, which utilizes hydraulic drive and beveled surface design, the problem of leachate blockage is solved, achieving efficient dredging and automated control, and reducing the risk of equipment damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGWEI GREEN ENERGY NEW ENERGY CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-08
AI Technical Summary
Landfill leachate easily clogs the bar screen during the leachate filtration process, especially due to blockages caused by plastic bags or waterproof materials, which affects the permeability of the leachate and is difficult to effectively clear with existing technology.
A landfill leachate grating dredging device was designed, comprising a grating, a power output mechanism, and a dredging execution mechanism. The device utilizes a hydraulic cylinder to drive the pusher assembly and dredging guide rod. Through a stable structure composed of a screw and guide column, the grating is automatically dredged, and impurities are pushed to the impurity box through a beveled surface design.
It achieves efficient dredging of the bar screen, avoids blockage, reduces equipment damage, improves the flow efficiency of leachate, has a simple structure and low cost, and is suitable for automated control.
Smart Images

Figure CN224207543U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste treatment technology, specifically a device for clearing leachate from waste pits. Background Technology
[0002] Landfill leachate is a high-concentration organic wastewater containing various pollutants, generated during the dumping and landfilling process due to rainwater leaching and the decomposition of the waste itself. Landfill leachate contains a large amount of organic matter, ammonia nitrogen, heavy metal ions and other pollutants. Its chemical oxygen demand and biochemical oxygen demand can be as high as thousands or even tens of thousands of milligrams per liter, far exceeding the concentration of general industrial wastewater and domestic sewage.
[0003] Waste is stored in a waste storage facility, and leachate seeps downwards under the influence of gravity. Traditional leachate filtration methods rely solely on gratings for filtration. However, the waste also contains debris and silt, which can easily clog the leachate. Furthermore, the waste includes plastic bags or waterproof materials, which, when laid or sealed on the gratings, can severely impede the permeability of the leachate. Therefore, this application is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a device for clearing leachate from landfill grates, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A landfill leachate grating dredging device includes a grating, on which a power output mechanism and a dredging execution mechanism are installed;
[0007] The unblocking actuator includes a slip ring, a pusher seat, and a pusher assembly. The pusher assembly is fixedly installed on the top of the pusher seat. The grid has openings, and the pusher assembly contains unblocking guide rods that correspond one-to-one with the grid openings. The pusher seat is equipped with a slip ring.
[0008] Power output mechanism: includes a hydraulic cylinder, two ram fixing seats and a crossbeam, with a crossbeam installed between the two ram fixing seats, and a hydraulic cylinder installed on the crossbeam;
[0009] The grille, power output mechanism, and unblocking actuator are fixed together by a lead screw. A guide post is provided on the outside of the lead screw. The unblocking actuator is slidably mounted on the outside of the guide post through a slip ring. The output end of the hydraulic cylinder is connected to the push head assembly.
[0010] As a further improvement of this utility model: the bottom of the grid is provided with a sleeper rail, and there are four lead rods. The lead rods pass through the sleeper rails, and the two ends of the lead rods are locked together by bolts to form a fixed structure.
[0011] As a further improvement of this utility model: the output end of the hydraulic cylinder is connected to a connecting seat by bolts, and the connecting seat is fixed to the push head assembly by bolts.
[0012] As a further embodiment of this utility model: the grid hole is circular, the unblocking guide rod is cylindrical, the diameter of the unblocking guide rod is smaller than the diameter of the grid hole, the unblocking guide rod can pass through the grid hole, and the top of the grid hole and the bottom of the unblocking guide rod are both provided with chamfers.
[0013] As a further improvement of this utility model: the grid hole is elongated, and the unblocking guide rod is also elongated, and the unblocking guide rod can pass through the grid hole.
[0014] As a further improvement of this utility model: a grid plate is provided on the top of the grid, the grid plate and the unblocking guide rod are staggered in position, and the bottom of the unblocking guide rod is a beveled surface.
[0015] As a further improvement of this utility model: an impurity box is provided on one side of the grille, and a valve is provided at the bottom of the impurity box.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. The leachate grating unblocking device for garbage pits drives the unblocking actuator to reciprocate through a power output mechanism, so that the unblocking guide rod of the push head assembly unblocks the grating. The lead screw and guide column assemble the power output mechanism, the unblocking actuator and the grating together. The power output mechanism slides up and down on the outside of the guide column to form a stable overall structure. The structure is simple, the modification cost is low and it is easy to automate.
[0018] 2. This leachate grating unblocking device for garbage pits, through the beveled design of the unblocking guide rod and the cooperation of the grating plate, can push hard impurities to one side of the impurity box or away from the grating to avoid blockage. It can also effectively prevent damage to the unblocking guide rod and slip ring, and increase the effect of pushing away and removing impurities. Attached Figure Description
[0019] Figure 1 A three-dimensional structural view of a first embodiment of a landfill leachate grating unblocking device;
[0020] Figure 2 A front view of the structure of a first embodiment of a landfill leachate grating dredging device;
[0021] Figure 3 An exploded view of an embodiment of a landfill leachate grating unblocking device;
[0022] Figure 4 This is a rear view of the structure of a second embodiment of a landfill leachate grating dredging device;
[0023] Figure 5 The right view shows the structure of a second embodiment of a landfill leachate grating dredging device.
[0024] In the diagram: 1. Sleeper rail; 2. Grating; 3. Lead screw; 4. Guide post; 5. Slip ring; 6. Push seat; 7. Connecting seat; 8. Crossbeam; 9. Slide block fixing seat; 10. Hydraulic cylinder; 11. Push head assembly; 12. Unblocking guide rod; 13. Positioning hole; 14. Grating hole; 15. Grating plate; 16. Impurity box; 17. Valve. Detailed Implementation
[0025] Please see Figures 1-5 In this embodiment of the utility model, a landfill leachate grating plate unblocking device includes a grating 2, on which a power output mechanism and an unblocking execution mechanism are installed;
[0026] The unblocking actuator includes a slip ring 5, a push seat 6, and a push head assembly 11. The push head assembly 11 is fixedly installed on the top of the push seat 6. The grid 2 has grid holes 14. The push head assembly 11 is equipped with unblocking guide rods 12 that correspond one-to-one with the grid holes 14. The push seat 6 is provided with a slip ring 5. The push seat 6 has a positioning hole 13. The unblocking guide rods 12 provided in the push head assembly 11 extend to the bottom of the push seat 6 through the positioning hole 13.
[0027] Power output mechanism: includes hydraulic cylinder 10, two slide block fixing seats 9 and cross beam 8. Cross beam 8 is installed between the two slide block fixing seats 9. Hydraulic cylinder 10 is installed on cross beam 8. Hydraulic cylinder 10 serves as the drive source and is fixed on cross beam 8. Through push head assembly 11, it pushes the unblocking guide rod 12 to move downward to remove the blockage on the grid hole 14.
[0028] The grid 2, power output mechanism, and dredging execution mechanism are fixed together by a lead screw 3. A guide post 4 is provided on the outside of the lead screw 3. The dredging execution mechanism is slidably installed on the outside of the guide post 4 via a slip ring 5. The output end of the hydraulic cylinder 10 is connected to the push head assembly 11. The guide post 4 is located between the crossbeam 8 and the grid 2. The slip ring 5 slides on the outside of the guide post 4 to limit the movement trajectory of the push seat 6, thereby dredging the grid 2. The hollow design of the crossbeam 8 can lift the garbage and prevent plastic bags or some waterproof materials from clogging the grid 2. During the upward reset process, the push head assembly 11 can push away the nearby garbage, allowing the leachate to smoothly enter the grid 2 and be discharged.
[0029] In a preferred embodiment, the bottom of the grid 2 is provided with a sleeper rail 1, and there are four screw rods 3. The screw rods 3 pass through the sleeper rail 1, and the two ends of the screw rods 3 are locked by bolts to form a fixed position. The screw rods 3 can effectively provide support, maintain the temperature of the equipment, and support the garbage on top, so as to prevent it from being squeezed and accumulated on the top of the grid 2 and affecting the filtration.
[0030] In a preferred embodiment, the output end of the hydraulic cylinder 10 is bolted to the connecting seat 7, which is fixed to the push head assembly 11 by bolts. The grid hole 14 is circular, and the unblocking guide rod 12 is cylindrical. The diameter of the unblocking guide rod 12 is smaller than the diameter of the grid hole 14, allowing the unblocking guide rod 12 to pass through the grid hole 14. Both the top of the grid hole 14 and the bottom of the unblocking guide rod 12 are chamfered. This method can effectively unblock the accumulation and blockage on the grid 2.
[0031] In a preferred embodiment, the grid hole 14 is elongated, and the unblocking guide rod 12 is also elongated. The unblocking guide rod 12 can pass through the grid hole 14. The top of the grid 2 is provided with a grid plate 15. The grid plate 15 and the unblocking guide rod 12 are staggered. The bottom of the unblocking guide rod 12 is beveled. When the unblocking guide rod 12 is pushed down, the beveled surface can push some of the garbage that is not easy to break or remove to one side, so as to avoid the problem of the unblocking guide rod 12 being damaged by pressure due to garbage blockage and difficulty in unblocking.
[0032] In a preferred embodiment, a waste bin 16 is provided on one side of the grid 2, and a valve 17 is provided at the bottom of the waste bin 16. The guide rod 12 pushes some of the waste that is difficult to remove into the waste bin 16 for unified treatment or discharge.
[0033] It should be noted that all the above embodiments belong to the same utility model concept, and the descriptions of each embodiment have different focuses. Where the description in a particular embodiment is not detailed, please refer to the description in other embodiments.
[0034] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A device for clearing leachate from a landfill, comprising a grid (2), characterized in that, A power output mechanism and a dredging actuator are installed on the grille (2); The unblocking actuator includes a slip ring (5), a push seat (6) and a push head assembly (11). The push head assembly (11) is fixedly installed on the top of the push seat (6). The grid (2) has grid holes (14). The push head assembly (11) has unblocking guide rods (12) that correspond one-to-one with the grid holes (14). The push seat (6) is equipped with a slip ring (5). Power output mechanism: includes a hydraulic cylinder (10), two ram fixing seats (9) and a crossbeam (8), with a crossbeam (8) installed between the two ram fixing seats (9) and a hydraulic cylinder (10) installed on the crossbeam (8); The grille (2), power output mechanism and dredging actuator are fixed together by a screw (3). A guide post (4) is provided on the outside of the screw (3). The dredging actuator is slidably installed on the outside of the guide post (4) by a slip ring (5). The output end of the hydraulic cylinder (10) is connected to the push head assembly (11).
2. The landfill leachate grating unblocking device according to claim 1, characterized in that, The bottom of the grid (2) is provided with a sleeper rail (1), and there are four screw rods (3). The screw rods (3) pass through the sleeper rail (1), and the two ends of the screw rods (3) are locked by bolts to form a fixed structure.
3. The landfill leachate grating unblocking device according to claim 1, characterized in that, The output end of the hydraulic cylinder (10) is connected to the connecting seat (7) by bolts, and the connecting seat (7) is fixed to the push head assembly (11) by bolts.
4. A landfill leachate grating unblocking device according to any one of claims 1-3, characterized in that, The grid hole (14) is round, and the unblocking guide rod (12) is cylindrical. The diameter of the unblocking guide rod (12) is smaller than the diameter of the grid hole (14). The unblocking guide rod (12) can pass through the grid hole (14). Both the top of the grid hole (14) and the bottom of the unblocking guide rod (12) are chamfered.
5. A landfill leachate grating unblocking device according to any one of claims 1-3, characterized in that, The grid hole (14) is elongated, and the unblocking guide rod (12) is also elongated, and the unblocking guide rod (12) can pass through the grid hole (14).
6. A landfill leachate grating unblocking device according to claim 5, characterized in that, The top of the grille (2) is provided with a grid plate (15), and the grid plate (15) and the unblocking guide rod (12) are staggered. The bottom of the unblocking guide rod (12) is a beveled surface.
7. A landfill leachate grating unblocking device according to claim 5, characterized in that, A sludge box (16) is provided on one side of the grid (2), and a valve (17) is provided at the bottom of the sludge box (16).