A filter screen with anti-corrosion effect for landfill leachate sewage treatment
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU ALDO ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-26
Smart Images

Figure CN224404556U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter screen technology, specifically a filter screen for treating landfill leachate wastewater with anti-corrosion properties. Background Technology
[0002] Wastewater treatment filter screens can be used to filter landfill leachate. To prevent corrosion, the outer surface is coated. For reference, see announcement number CN222641385U, which describes a landfill leachate filtration device, including a base, a collection component on the inner side of the base, support legs fixedly installed at the four corners of the top of the base, a filter box fixedly installed on the top of the support legs, and inner slide rails fixedly connected at equal intervals inside the filter box. Filter components are slidably connected to the inner side of the inner slide rails.
[0003] The collection frame of the above-mentioned device can be quickly replaced through the sliding plate design, which is convenient for cleaning impurities. However, when it is pulled out, impurities are easy to fall onto the machine body, causing pollution to the machine body. Moreover, the machine is stopped during cleaning, which leads to a reduction in filtration efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a filter screen for landfill leachate wastewater treatment with anti-corrosion properties, 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 filter screen for treating landfill leachate wastewater with corrosion resistance includes a mounting frame, wherein a support leg is fixedly connected to the lower surface of the mounting frame.
[0007] A filter cartridge is rotatably connected to the lower part of the mounting frame. Two connecting frames are fixedly connected to the inner surface of the support leg. A flipping mechanism is slidably connected to the inner surface of the connecting frame. The flipping mechanism includes a connector, a fixing block, a rotating seat, a limiting seat, and a spring. The connector is nested and connected to the outer surface of the filter cartridge. The fixing block is welded to the outer surface of the filter cartridge. The rotating seat is rotatably connected to the outer surface of the fixing block. A second fastening knob is threadedly connected to the outer surface of the rotating seat. The limiting seat is fixedly connected to the inner surface of the connecting frame. A limiting rod is fixedly connected to the upper surface of the limiting seat. The spring is nested and connected to the outer surface of the limiting rod.
[0008] Furthermore, a slide rail is fixedly connected to the inner surface of the connecting frame, and the rotating seat and the slide rail are slidably connected.
[0009] Furthermore, a collection box is fixedly connected to the inner surface of the support leg, and a drain pipe is fixedly connected to the side surface of the collection box.
[0010] Furthermore, the upper surface of the mounting frame is fixedly connected to a feeding hopper, the upper surface of the feeding hopper is threaded with bolts, the lower surface of the feeding hopper is provided with a through hole, and the feeding hopper is fixedly connected to the mounting frame by bolts.
[0011] Furthermore, the outer surface of the connector is threaded with a first fastening knob, the connector and the filter cartridge are fixedly connected by the first fastening knob, and the filter body is slidably embedded inside the filter cartridge.
[0012] Furthermore, one end of the spring is connected to the limiting seat, and the other end of the spring is connected to the rotating seat.
[0013] Furthermore, the front surface of the mounting frame is fixedly connected to a limiting frame, one end of the limiting frame is fixedly connected to a hydraulic push rod, the output end of the hydraulic push rod is fixedly connected to a mounting sleeve, the mounting sleeve and the limiting frame are slidably connected, and one end of the mounting sleeve is fixedly connected to a flange.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. You can manually slide the rotating seat down to compress the spring on the limit rod, causing one end of the filter cartridge to exit from the through hole. Then, you can rotate the filter cartridge with the rotating seat to tilt it. At this time, impurities and residual filtrate will still tend to move into the collection box under the action of gravity, avoiding contamination of the machine body when cleaning the filter screen.
[0016] 2. Activate the hydraulic push rod. The output end of the hydraulic push rod pushes the mounting sleeve to move along the limit frame, so that the mounting sleeve is in different feed hopper positions. The mounting sleeve is used to guide the leachate into the feed hopper and, together with the flange and threaded assembly, installs the external inlet pipe, so that the two feed hoppers can work alternately. This makes it easy for the other set of filter cartridges to be put into use quickly when cleaning later, thereby improving the efficiency of leachate filtration. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the connecting frame structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the feed hopper structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the filter cartridge structure after it is flipped over according to this utility model.
[0021] In the diagram: 1. Mounting frame; 101. Support leg; 2. Connecting frame; 201. Slide rail; 3. Collection box; 301. Drain pipe; 4. Feed hopper; 401. Bolt; 402. Through hole; 5. Tilting mechanism; 501. Connector; 502. First fastening knob; 503. Fixing block; 504. Rotating seat; 505. Limiting seat; 506. Limiting rod; 507. Spring; 508. Second fastening knob; 6. Filter cartridge; 601. Filter screen body; 7. Limiting frame; 701. Hydraulic push rod; 702. Mounting sleeve; 703. Flange. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0023] Please see Figure 1-4 In this embodiment of the utility model, a filter screen for treating landfill leachate wastewater with anti-corrosion effect includes a mounting frame 1, and a support leg 101 is fixedly connected to the lower surface of the mounting frame 1.
[0024] A filter cartridge 6 is rotatably connected to the lower part of the mounting frame 1. Two connecting frames 2 are fixedly connected to the inner surface of the support leg 101. A flipping mechanism 5 is slidably connected to the inner surface of the connecting frame 2. The flipping mechanism 5 includes a connector 501, a fixing block 503, a rotating seat 504, a limiting seat 505, and a spring 507. The connector 501 is nested and connected to the outer surface of the filter cartridge 6. The fixing block 503 is welded to the outer surface of the filter cartridge 6. The rotating seat 504 is rotatably connected to the outer surface of the fixing block 503. A second fastening knob 508 is threadedly connected to the outer surface of the rotating seat 504. The limiting seat 505 is fixedly connected to the inner surface of the connecting frame 2. A limiting rod 506 is fixedly connected to the upper surface of the limiting seat 505. The spring 507 is nested and connected to the outer surface of the limiting rod 506.
[0025] Specifically, during use, the waste filtrate passes through the filter cylinder 6 for filtration. The mounting frame 1, together with the support leg 101, is installed on the ground. The flipping mechanism 5 can flip the filter cylinder 6, changing it from a vertical state to an inclined state. At this time, the filter screen body 601 inside the filter cylinder 6 can be manually removed, making it convenient to manually clean or replace the filter screen body 601.
[0026] Example 1
[0027] like Figure 1-4 As shown, a slide rail 201 is fixedly connected to the inner surface of the connecting frame 2, and the rotating seat 504 is slidably connected to the slide rail 201.
[0028] In this embodiment, the rotating seat 504 can slide in the slide rail 201 to change the position of the connector 501. The connector 501 connects the two filter cartridges 6 into a whole. Therefore, when replacing the filter body 601, the second fastening knob 508 is rotated to remove the external fixation between the rotating seat 504 and the limiting rod 506. Then, the rotating seat 504 can be manually slid down to compress the spring 507 on the limiting rod 506, causing one end of the filter cartridge 6 to exit from the through hole 402. Then, the filter cartridge 6 can be rotated with the rotating seat 504 to tilt the filter cartridge 6. At this time, impurities and residual filtrate still tend to move into the collection box 3 under the action of gravity, avoiding contamination of the machine body when cleaning the filter body 601.
[0029] like Figure 1-4 As shown, a collection box 3 is fixedly connected to the inner surface of the support leg 101, and a drain pipe 301 is fixedly connected to the side surface of the collection box 3.
[0030] In this embodiment, the collection box 3 is used to collect filtered sewage and to receive debris generated during cleaning. The drain pipe 301 is connected to the subsequent treatment pipeline.
[0031] Example 2
[0032] Based on Embodiment 1, in order to overcome the problem that it is inconvenient to continue working during maintenance in Embodiment 1.
[0033] like Figure 1-4 As shown, a feed hopper 4 is fixedly connected to the upper surface of the mounting frame 1, and a bolt 401 is threadedly connected to the upper surface of the feed hopper 4. A through hole 402 is opened on the lower surface of the feed hopper 4. The feed hopper 4 is fixedly connected to the mounting frame 1 by bolt 401.
[0034] In this embodiment, the feed hopper 4 is used to guide the landfill leachate so that it can enter the filter cylinder 6 through the through hole 402, and then be filtered by the filter screen body 601.
[0035] like Figure 1-4 As shown, the outer surface of the connector 501 is threaded with a first fastening knob 502. The connector 501 and the filter cartridge 6 are fixedly connected by the first fastening knob 502. The filter cartridge 6 is embedded and slidably connected with a filter screen body 601. The outer surface of the filter screen body 601 is coated with a corrosion-resistant coating. One end of the spring 507 is connected to the limiting seat 505, and the other end of the spring 507 is connected to the rotating seat 504.
[0036] In this embodiment, the connector 501 connects the two filter cartridges 6 into a whole. When the filter cartridge 6 needs to be disassembled individually, the first fastening knob 502 is rotated to remove the first fastening knob 502 from the filter cartridge 6. At this time, the individual filter cartridge 6 can be disassembled individually. The spring 507 provides auxiliary support to the rotating seat 504 after the second fastening knob 508 is loosened, making it easier to manually tilt the filter cartridge 6.
[0037] like Figure 1-4 As shown, a limit frame 7 is fixedly connected to the front surface of the mounting frame 1. A hydraulic push rod 701 is fixedly connected to one end of the limit frame 7. An mounting sleeve 702 is fixedly connected to the output end of the hydraulic push rod 701. The mounting sleeve 702 and the limit frame 7 are slidably connected. A flange 703 is fixedly connected to one end of the mounting sleeve 702.
[0038] In this embodiment, the hydraulic push rod 701 is activated, and the output end of the hydraulic push rod 701 pushes the mounting sleeve 702 to move along the limit frame 7, so that the mounting sleeve 702 is in different feed hoppers 4. The mounting sleeve 702 is used to guide the leachate into the feed hopper 4, and works with the flange 703 and threaded assembly to install the external inlet pipe, so that the two feed hoppers 4 can work alternately. This makes it easy for the other set of filter cartridges 6 to be put into use quickly during later cleaning, thereby improving the efficiency of leachate filtration.
[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A filter screen for treating landfill leachate wastewater with anti-corrosion effect, comprising a mounting frame (1), wherein a support leg (101) is fixedly connected to the lower surface of the mounting frame (1); characterized in that A filter cartridge (6) is rotatably connected to the lower part of the mounting frame (1). Two connecting brackets (2) are fixedly connected to the inner surface of the support leg (101). A flipping mechanism (5) is slidably connected to the inner surface of the connecting bracket (2). The flipping mechanism (5) includes: The connector (501) is nested and connected to the outer surface of the filter cartridge (6); The fixing block (503) is welded to the outer surface of the filter cartridge (6); A rotating seat (504) is rotatably connected to the outer surface of a fixed block (503), and a second fastening knob (508) is threadedly connected to the outer surface of the rotating seat (504); A limiting seat (505) is fixedly connected to the inner surface of the connecting frame (2), and a limiting rod (506) is fixedly connected to the upper surface of the limiting seat (505); Spring (507) is nested and connected to the outer surface of limit rod (506).
2. The filter screen for landfill leachate wastewater treatment with anti-corrosion effect according to claim 1, characterized in that, The inner surface of the connecting frame (2) is fixedly connected to a slide rail (201), and the rotating seat (504) and the slide rail (201) are slidably connected.
3. The filter screen for landfill leachate wastewater treatment with anti-corrosion effect according to claim 1, characterized in that, A collection box (3) is fixedly connected to the inner surface of the support leg (101), and a drain pipe (301) is fixedly connected to the side surface of the collection box (3).
4. The filter screen for landfill leachate wastewater treatment with anti-corrosion effect according to claim 1, characterized in that, The upper surface of the mounting frame (1) is fixedly connected to the feed hopper (4), the upper surface of the feed hopper (4) is threaded with bolts (401), the lower surface of the feed hopper (4) is provided with through holes (402), and the feed hopper (4) is fixedly connected to the mounting frame (1) by bolts (401).
5. The filter screen for landfill leachate wastewater treatment with anti-corrosion effect according to claim 1, characterized in that, The outer surface of the connector (501) is threaded with a first fastening knob (502), and the connector (501) and the filter cartridge (6) are fixedly connected by the first fastening knob (502). The filter cartridge (6) is slidably embedded inside the filter body (601).
6. The filter screen for landfill leachate wastewater treatment with anti-corrosion effect according to claim 1, characterized in that, One end of the spring (507) is connected to the limiting seat (505), and the other end of the spring (507) is connected to the rotating seat (504).
7. The filter screen for landfill leachate wastewater treatment with anti-corrosion effect according to claim 1, characterized in that, A limiting frame (7) is fixedly connected to the front surface of the mounting frame (1). A hydraulic push rod (701) is fixedly connected to one end of the limiting frame (7). An mounting sleeve (702) is fixedly connected to the output end of the hydraulic push rod (701). The mounting sleeve (702) and the limiting frame (7) are slidably connected. A flange (703) is fixedly connected to one end of the mounting sleeve (702).