High-efficiency filtering device for landfill leachate

Abstract

The efficient filtering device comprises a plurality of side plates and a plurality of end plates, the side plates and the end plates are combined to form a filtering box, a plurality of bottom plates are installed in an opening in the lower end of the filtering box, a discharging port is formed between the bottom plates and provided with a fixing base, and the two sides of the fixing base are each provided with a filtering plate through a hinge piece. The top surfaces of the bottom plates are uniformly distributed with contact pins for ejecting impurities on the filter plate out of the filter holes, grooves are formed in the opposite surfaces of the bottom plates, and push plates for lifting the filter plate upwards are arranged in the grooves. The filtering device is simple in structure, intercepted impurities can be extruded through the filtering plates close to each other inwards, percolate left inside can be extruded out, after the filtering plates are opened outwards, the filtering plates can move to the position above the bottom plate, the inserting needles can be inserted into the filtering holes of the filtering plates, the blocked impurities can be ejected out, and the filtering efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of landfill leachate treatment, in particular to a landfill leachate high-efficiency filtering device. Background Art

[0002] The composition of leachate from hazardous waste landfills is complex, and its composition is also changing with the changes in the waste buried in the landfills. Therefore, the treatment of leachate from hazardous waste landfills has always been one of the difficult problems in the field of environmental protection. The first step in treating this leachate is to reduce the suspended matter in the leachate. Therefore, the leachate needs to be filtered. However, in the existing technology, it is not convenient to clean the suspended matter on the surface of the filter screen during the filtration process of the leachate, which makes the filter screen prone to clogging, reducing the filtration efficiency. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a landfill leachate high-efficiency filtering device, wherein a pin can be inserted into the filter hole of a filter plate to push out blocked impurities, thereby solving the problems raised in the above-mentioned background technology.

[0004] The utility model is realized through the following technical scheme: a landfill leachate high-efficiency filtering device, comprising a plurality of side plates and a plurality of end plates, the side plates and the end plates are combined to form a filter box, a plurality of bottom plates are installed in the opening at the lower end of the filter box, a discharge port is formed between the bottom plates, a fixed seat is provided at the discharge port, filter plates are installed on both sides of the fixed seat through hinges, the top surface of the bottom plate is covered with pins for ejecting impurities on the filter plate from the filter holes, grooves are provided on the opposite surfaces of the bottom plate, and push plates for lifting the filter plate upwards are provided in the grooves.

[0005] As a preferred technical solution, a fixing plate is uniformly fixed below the push plate, one side of the fixing plate protrudes to form a fixing portion, a cylinder is installed between the fixing portion and the bottom plate, and the fixing plate is covered with through holes.

[0006] As a preferred technical solution, a U-shaped plate is installed above the filter box, a mounting hole is provided at the center of the U-shaped plate, a feed hopper is installed in the mounting hole, and the feed hopper is located in the middle of the filter box.

[0007] As a preferred technical solution, a plurality of supporting parts are protruded from the bottom surface of the side panels.

[0008] As a preferred technical solution, the bottom plate is excluding the opposite end faces, and the remaining end faces are installed on the inner wall surface of the filter box, and a plurality of liquid permeable holes are provided on the bottom plate, and the liquid permeable holes are staggered with the insertion pins.

[0009] As a preferred technical solution, the filter plate is made of metal material.

[0010] As a preferred technical solution, the top surface of the push plate forms a guide portion with an arc structure.

[0011] As a preferred technical solution, the filter plates are arranged at an inclination, and the two filter plates are arranged in an inverted "eight" shape.

[0012] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and the intercepted impurities can be squeezed by the filter plate that moves inward, so that the leachate remaining inside can be squeezed out; after the filter plate is opened outward, the filter plate can be moved above the bottom plate, and the pin can be inserted into the filter hole of the filter plate to push out the blocked impurities, thereby ensuring the filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model after removing one side panel;

[0017] Figure 4 It is a schematic diagram of the installation structure of the cylinder and the push plate in the utility model.

[0018] Among them, 1. side plate; 2. end plate; 3. U-shaped plate; 4. feed hopper; 5. filter plate; 6. support part; 7. bottom plate; 8. pin; 9. fixed seat; 10. push plate; 11. fixed plate; 12. cylinder. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0021] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model is a high-efficiency filtering device for landfill leachate, comprising a plurality of side plates 1 and a plurality of end plates 2, wherein the side plates 1 and the end plates 2 are combined to form a filter box, wherein a plurality of bottom plates 7 are installed in the opening at the lower end of the filter box, wherein a discharge port is formed between the bottom plates 7, wherein a fixing seat 9 is provided at the discharge port, wherein filter plates 5 are installed on both sides of the fixing seat 9 through hinges, wherein the top surfaces of the bottom plates 7 are covered with pins 8 for ejecting impurities on the filter plates 5 from the filter holes, wherein grooves are provided on the opposite surfaces of the bottom plates 7, wherein push plates 10 for lifting the filter plates 5 upwards are provided in the grooves.

[0023] In this embodiment, a fixed plate 11 is uniformly fixed below the push plate 10. One side of the fixed plate 11 protrudes to form a fixed portion. A cylinder 12 is installed between the fixed portion and the bottom plate 7. The fixed plate 11 is covered with through holes. The leachate discharged from the discharge port can be discharged through the through holes, avoiding affecting the discharge efficiency of the leachate.

[0024] In this embodiment, a U-shaped plate 3 is installed above the filter box, a mounting hole is provided at the center of the U-shaped plate 3, a feed hopper 4 is installed in the mounting hole, and the feed hopper 4 is located in the middle of the filter box.

[0025] In this embodiment, a plurality of support portions 6 are protruded from the bottom surface of the side plate 1 .

[0026] In this embodiment, the bottom plate 7 is stripped of its opposite end faces, and the remaining end faces are mounted on the inner wall of the filter box. The bottom plate 7 is provided with a plurality of liquid permeable holes, which are staggered with the insertion pins 8. The liquid permeable holes increase the efficiency of liquid discharge and prevent the filtered leachate from remaining inside the filter box.

[0027] In this embodiment, the filter plate 5 is made of metal material to ensure the firmness of the filter plate, so that the residual impurities can be squeezed inward better, so that the leachate inside the impurities can be squeezed out quickly.

[0028] In this embodiment, the top surface of the push plate 10 forms a flow guide portion with an arc structure, so that the push plate can push the filter plate upward more smoothly.

[0029] In this embodiment, the filter plates 5 are all tilted, and the two filter plates 5 are arranged in an inverted "eight" shape. The filter plates distributed in the inverted "eight" shape can move impurities to the middle, avoiding falling out of the filter plates.

[0030] When in use, the leachate can be poured into the filter box through the feed hopper. The leachate entering the filter box will contact the filter plate, and the impurities in the leachate can be filtered out through the filter plate, while the leachate itself can flow downward along the discharge port and the liquid permeable hole. Among them, with long-term filtration, a large amount of impurities will remain on the filter plate. At this time, the cylinder can be started to retract the piston rod of the cylinder. The movement of the piston rod drives the fixing part and the fixing plate to move the fixing plate upward. The movement of the fixing plate drives the push plate. The push plate that moves upward can squeeze the filter plate, so that the filter plate moves inward with the hinge as the center. In the process of moving closer, the internal impurities can be squeezed, so that the leachate remaining in the impurities is squeezed out to avoid residue.

[0031] On the contrary, after the cylinder of the air cylinder extends out, the fixed plate and the push plate can move downward. After losing the upward thrust of the push plate, the filter plate can rotate downward by its own weight. After the filter plate lies flat, the pins on the bottom plate can be inserted into the filter holes of the filter plate, thereby pushing impurities in the filter holes outward to ensure the subsequent filtering quality of the filter plate. The top of the filter box is in an open state, so that impurities accumulated inside can be cleared.

[0032] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A landfill leachate high efficiency filtration device, characterized in that: The invention comprises a plurality of side plates (1) and a plurality of end plates (2), wherein the side plates (1) and the end plates (2) are combined to form a filter box, wherein a plurality of bottom plates (7) are installed in an opening at the lower end of the filter box, wherein a discharge port is formed between the bottom plates (7), wherein a fixing seat (9) is provided at the discharge port, wherein filter plates (5) are installed on both sides of the fixing seat (9) via hinged parts, wherein the top surface of the bottom plate (7) is covered with pins (8) for ejecting impurities on the filter plate (5) from the filter holes, wherein grooves are provided on the opposite surfaces of the bottom plate (7), wherein push plates (10) for lifting the filter plate (5) upward are provided in the grooves.

2. The landfill leachate high-efficiency filtration device according to claim 1, characterized in that: A fixed plate (11) is fixed uniformly below the push plate (10), one side of the fixed plate (11) protrudes to form a fixed portion, a cylinder (12) is installed between the fixed portion and the bottom plate (7), and the fixed plate (11) is covered with through holes.

3. The landfill leachate high-efficiency filtration device according to claim 1, characterized in that: A U-shaped plate (3) is installed above the filter box. A mounting hole is provided at the center of the U-shaped plate (3). A feed hopper (4) is installed in the mounting hole. The feed hopper (4) is located in the middle of the filter box.

4. The landfill leachate high-efficiency filtration device according to claim 1, characterized in that: A plurality of support portions (6) are protruded from the bottom surface of the side plate (1).

5. The landfill leachate high-efficiency filtration device according to claim 1, characterized in that: The bottom plate (7) is excluding the opposite end faces, and the remaining end faces are all mounted on the inner wall surface of the filter box, and a plurality of liquid permeable holes are provided on the bottom plate (7), and the liquid permeable holes are all staggered with the insertion pins (8).

6. The landfill leachate high-efficiency filtration device according to claim 1, characterized in that: The filter plate (5) is made of metal material.

7. The landfill leachate high-efficiency filtration device according to claim 1, characterized in that: The top surface of the push plate (10) forms a flow guide portion with an arc-shaped structure.

8. The landfill leachate high-efficiency filtration device according to claim 1, characterized in that: The filter plates (5) are all arranged at an inclination, and the two filter plates (5) are arranged in an inverted "eight"-shaped structure.

Images