Hazardous waste landfill leachate filtering device

Abstract

The utility model discloses a hazardous waste landfill leachate filtering device, which relates to the technical field of hazardous waste treatment and comprises a mounting frame, a filtering box, a filtering net, a rotating rod, a horizontal plate, a brush strip and a driving component, a filter box is arranged on the mounting frame, a liquid inlet pipe and a liquid outlet pipe are mounted on the filter box, and a filter screen is mounted in the filter box; a rotating rod is vertically and rotationally connected to the middle position of the filtering box, the bottom of the rotating rod extends into the filtering box and is connected with a horizontal plate, a plurality of brush strips are arranged at the bottom of the horizontal plate, and the brush strips are located above the filtering net and make contact with the filtering net; the top of the rotating rod extends out of the filter box and is connected with the driving assembly, so that the driving assembly drives the rotating rod to rotate, and the brush strip rotates and cleans the filter screen. The device is simple in structure, low in cost and high in use value, and the cleaning effect on the filter screen is improved.

Description

Technical Field

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

[0002] The composition of leachate from hazardous waste landfills is complex, and it also changes with the changes in the waste 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, during the filtration process, the filter screen is prone to clogging due to the accumulation of suspended matter, which reduces the filtration efficiency.

[0003] To this end, Chinese patent CN215841835U proposes a hazardous waste landfill leachate filtration device, which can clean the suspended matter on the surface of the filter net, thereby avoiding clogging of the filter net and improving the filtration efficiency. This structure has the following disadvantages:

[0004] First, the device realizes the cleaning operation of the filter screen by setting a first rotating shaft, a servo motor, a first gear, a half gear, a second rotating shaft, an annular gear, a tooth plate, a telescopic rod, a spring and a cleaning brush. This structure is complicated, which greatly increases the difficulty and cost of installation;

[0005] Secondly, during the filtration process, the leachate will continuously come into contact with the first rotating shaft, the servo motor, the first gear, the half gear, the second rotating shaft, the annular gear, the tooth plate, the telescopic rod, the spring and the cleaning brush. This structure will not only affect the normal filtration operation of the filter screen, but also will be damaged to a greater extent due to long-term contact with the leachate, thereby reducing its service life. Utility Model Content

[0006] The purpose of the utility model is to solve the problems raised in the above background technology, and then proposes a hazardous waste landfill leachate filtering device.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A hazardous waste landfill leachate filtering device comprises a mounting frame, a filter box, a filter screen, a rotating rod, a horizontal plate, a brush bar and a driving assembly;

[0009] A filter box is provided on the mounting frame, a liquid inlet pipe and a liquid discharge pipe are installed on the filter box, and a filter screen is installed in the filter box;

[0010] A rotating rod is vertically rotatably connected to the middle of the filter box, the bottom of the rotating rod extends into the filter box and is connected to a horizontal plate, a plurality of brush strips are arranged at the bottom of the horizontal plate, the brush strips are above the filter net and the two are in contact;

[0011] The top of the rotating rod extends to the outside of the filter box and is connected to the driving component, so that the driving component drives the rotating rod to rotate, and the brush bar performs a rotating cleaning action on the filter screen.

[0012] Furthermore, the driving assembly includes a driving motor and a transmission part; the driving motor is arranged outside the filter box and is connected to the rotating rod through the transmission part, so that the driving motor operates to drive the transmission part to drive the rotating rod in linkage.

[0013] Furthermore, the rotating rod is hollow in structure and has a rotating joint at its top, which is connected to a liquid guide tube so that external water can enter the rotating rod through the liquid guide tube; the horizontal plate is hollow in structure and is connected to the rotating rod, and a plurality of water spray holes are provided at the bottom of the horizontal plate to enhance the cleaning effect of the filter.

[0014] Furthermore, two slide grooves are symmetrically arranged in the filter box, the filter screen is slidably arranged between the two slide grooves, and the end of the filter screen extends to the outside of the filter box to facilitate the replacement operation of the filter screen.

[0015] Furthermore, the transmission part is one of a belt drive, a tooth drive or a chain drive.

[0016] Furthermore, a sealing cover is installed on the liquid inlet pipe to prevent external impurities from entering the filter box through the liquid inlet pipe.

[0017] Furthermore, the sealing cover and the liquid inlet pipe are connected by threaded connection, buckled connection or clamping connection to facilitate assembly and disassembly between the two.

[0018] Furthermore, a valve is installed on the discharge pipe.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model has a simple structure and low cost through the arrangement of a mounting frame, a filter box, a filter screen, a rotating rod, a horizontal plate, a brush bar and a driving assembly, and improves the cleaning effect of the filter screen; the driving assembly drives the rotating rod to rotate, and finally the brush bar rotates, and the rotating brush bar contacts the filter screen and evacuates and breaks up the suspended matter on the filter screen, thereby avoiding the clogging of the filter screen by the suspended matter.

[0021] 2. The utility model arranges the rotating rod to be a hollow structure and a rotating joint is provided at the top thereof, the rotating joint is connected to a liquid guide tube so that external water source can enter the rotating rod through the liquid guide tube, and in addition, arranges the horizontal plate to be a hollow structure and is connected to the rotating rod, and a plurality of water spray holes are provided at the bottom of the horizontal plate; this design enables the external water source to enter the rotating rod through the liquid guide tube, and then accumulate in the horizontal plate, and finally spray out through the water spray holes, and the sprayed water directly acts on the filter net, thereby realizing the flushing operation of the filter net, which greatly improves the cleaning strength and effect of the filter net. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of the utility model is provided;

[0023] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0024] Figure 3 The figure is a schematic diagram of the installation position of the slide;

[0025] Figure 4 for Figure 3 A partial enlarged view of B in the middle;

[0026] Among them: 1. mounting frame; 2. filter box; 21. liquid inlet pipe; 211. sealing cover; 22. liquid discharge pipe; 221. valve; 23. slide; 3. filter screen; 4. rotating rod; 5. horizontal plate; 51. water spray hole; 6. brush bar; 7. driving motor; 71. transmission part; 8. rotating joint; 81. liquid guide tube. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0028] See attached Figure 1 and attached Figure 2 As shown, a hazardous waste landfill leachate filtering device includes a mounting frame 1, a filter box 2, a filter screen 3, a rotating rod 4, a horizontal plate 5, a brush bar 6 and a driving assembly;

[0029] The mounting frame 1 plays a supporting and mounting role, on which a filter box 2 is arranged, on which a liquid inlet pipe 21 and a liquid discharge pipe 22 are arranged, and a filter screen 3 is arranged in the filter box 2;

[0030] Among them, a rotating rod 4 is vertically rotatably connected to the middle position of the filter box 2, the bottom of the rotating rod 4 extends into the filter box 2 and is connected to a horizontal plate 5, and a plurality of brush strips 6 are arranged at the bottom of the horizontal plate 5, and the brush strips 6 are located above the filter screen 3 and the two are in contact; the top of the rotating rod 4 extends to the outside of the filter box 2 and is connected to the driving component, so that the driving component drives the rotating rod 4 to rotate, and the brush strips 6 perform a rotating cleaning action on the filter screen 3.

[0031] During the implementation of the present application, the driving assembly drives the rotating rod 4 to rotate, and finally causes the brush bar 6 to rotate. The rotating brush bar 6 contacts the filter screen 3 and disperses the suspended matter on the filter screen 3, thereby avoiding clogging of the filter screen 3 by the suspended matter.

[0032] For the above scheme, refer to the attached Figure 1 As shown, the driving assembly includes a driving motor 7 and a transmission part 71; the driving motor 7 is arranged outside the filter box 2 and is connected to the rotating rod 4 through the transmission part 71, so that the driving motor 7 operates to make the transmission part 71 drive the rotating rod 4 in linkage; wherein the transmission part 71 is one of the belt drive, tooth drive or chain drive in the prior art.

[0033] In the above scheme, in order to prevent external impurities from entering the filter box 2 through the liquid inlet pipe 21, Figure 1 As shown, a sealing cover 211 is installed on the liquid inlet pipe 21, wherein the sealing cover 211 and the liquid inlet pipe 21 are connected by thread, buckle or clamp to facilitate the disassembly and assembly between the two; in addition, a valve 221 is installed on the liquid discharge pipe 22.

[0034] In addition, considering the cleaning strength of the filter screen 3, for this purpose, refer to the attached Figure 1 and attached Figure 2 As shown, the rotating rod 4 is of a hollow structure and a rotating joint 8 is provided at its top, and the rotating joint 8 is connected to a liquid guide tube 81 so that external water can enter the rotating rod 4 through the liquid guide tube 81; in addition, the horizontal plate 5 is of a hollow structure and is connected to the rotating rod 4, and a plurality of water spray holes 51 are provided at the bottom of the horizontal plate 5; during the implementation of this scheme, the external water enters the rotating rod 4 through the liquid guide tube 81, and then accumulates in the horizontal plate 5, and finally is sprayed out through the water spray holes 51, and the sprayed water directly acts on the filter screen 3 to flush the filter screen 3.

[0035] In addition, considering the replacement operation of the filter screen 3, for this purpose, refer to the attached Figure 3 and attached Figure 4 As shown, two slide grooves 23 are symmetrically arranged in the filter box 2 , the filter screen 3 is slidably arranged between the two slide grooves 23 , and the end of the filter screen 3 extends to the outside of the filter box 2 .

[0036] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A hazardous waste landfill leachate filtering device, comprising a mounting frame (1), a filter box (2) and a filter screen (3); the mounting frame (1) is provided with a filter box (2), the filter box (2) is provided with a liquid inlet pipe (21) and a liquid discharge pipe (22), and the filter screen (3) is installed in the filter box (2); the characteristics are: It also includes a rotating rod (4), a horizontal plate (5), a brush bar (6) and a driving assembly; A rotating rod (4) is vertically rotatably connected to the middle of the filter box (2), the bottom of the rotating rod (4) extends into the filter box (2) and is connected to a horizontal plate (5), a plurality of brush strips (6) are provided at the bottom of the horizontal plate (5), and the brush strips (6) are located above the filter screen (3) and the two are in contact; The top of the rotating rod (4) extends to the outside of the filter box (2) and is connected to the driving assembly, so that the driving assembly drives the rotating rod (4) to rotate, so that the brush bar (6) performs a rotating cleaning action on the filter screen (3). The rotating rod (4) is of a hollow structure and a rotating joint (8) is provided at the top thereof. The rotating joint (8) is connected to a liquid guide tube (81) so that an external water source can enter the rotating rod (4) through the liquid guide tube (81). The horizontal plate (5) is of a hollow structure and is connected to the rotating rod (4). A plurality of water spray holes (51) are provided at the bottom of the horizontal plate (5).

2. A hazardous waste landfill leachate filtration device according to claim 1, characterized in that: The driving assembly comprises a driving motor (7) and a transmission part (71); The driving motor (7) is arranged outside the filter box (2) and is connected to the rotating rod (4) via a transmission part (71).

3. The hazardous waste landfill leachate filtration device according to claim 1, characterized in that: Two slide grooves (23) are symmetrically arranged in the filter box (2), the filter screen (3) is slidably arranged between the two slide grooves (23), and the end of the filter screen (3) extends to the outside of the filter box (2).

4. The hazardous waste landfill leachate filtration device according to claim 2, characterized in that: The transmission part (71) is one of a belt drive, a tooth drive or a chain drive.

5. The hazardous waste landfill leachate filtration device according to claim 1, characterized in that: A sealing cover (211) is installed on the liquid inlet pipe (21).

6. The hazardous waste landfill leachate filtration device according to claim 5, characterized in that: The sealing cover (211) and the liquid inlet pipe (21) are connected by thread, buckle or clamp to facilitate assembly and disassembly of the two.

7. The hazardous waste landfill leachate filtration device according to claim 1, characterized in that: The liquid discharge pipe (22) is provided with a valve (221).

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