A backwash liquid return filter device for a pump station

By designing a backwash return liquid filtration device for pump stations that integrates magnetic adsorption and filtration functions, the problem of contamination in coal mine pump station concentrate tanks has been solved, achieving efficient purification of concentrate and protection of system components, reducing maintenance costs and improving production safety.

CN224513351UActive Publication Date: 2026-07-17TIEFA COAL IND (GRP) CO LTD XIAOKANG COAL MINE
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIEFA COAL IND (GRP) CO LTD XIAOKANG COAL MINE
Filing Date
2025-08-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The concentrate tanks in existing coal mine pump stations are prone to contamination during use, leading to jamming, wear and tear on hydraulic system components, shortened service life, frequent cleaning, and a lack of effective sedimentation and filtration devices, resulting in backflow of contaminants, affecting safe production and increasing costs.

Method used

Design a backwash return liquid filtration device for pump stations, comprising a magnetic adsorption mechanism, a rotating mechanism, and a filter element. It integrates sedimentation, magnetic adsorption, and filtration to process the return liquid. The device integrates a sedimentation chamber and a filtration chamber inside the cylinder. The magnetic adsorption mechanism adsorbs metal microparticles, the filter element filters rubber microparticles, and a scraping mechanism achieves self-cleaning.

Benefits of technology

It achieves effective purification of the concentrate, reduces contaminant backflow, extends the life of hydraulic system components, reduces cleaning frequency and maintenance costs, and improves production safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224513351U_ABST
    Figure CN224513351U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of backwashing liquid return filtering devices for pump station, it is related to coal mine pump station filtering technical field, including cylinder, magnetic adsorption mechanism is arranged in the inside center of cylinder, rotating mechanism is arranged in the periphery of magnetic adsorption mechanism, magnetic adsorption mechanism and rotating mechanism separate cylinder inside up and down, lower part is sedimentation chamber, upper part is filter chamber, scraper mechanism is arranged in the inside of sedimentation chamber, scraper mechanism is driven by rotating mechanism, filter core in filter chamber is set in cylinder, filter core is in the top of magnetic adsorption mechanism. Liquid return is introduced into the sedimentation chamber of cylinder first and then is deposited, then liquid return enters filter core after passing through magnetic adsorption mechanism upwards, metal microparticles in liquid return are adsorbed by magnetic adsorption, rubber microparticles are filtered by filter core, filtered liquid return flows to outside by filter core inside and flows back to concentration liquid tank from liquid outlet pipe, the filtering device is integrated for sedimentation, magnetic adsorption, filtration, reach the purpose of good purification concentration liquid.
Need to check novelty before this filing date? Find Prior Art

Claims

1. A backwash liquid return filter device for pump stations, comprising a cylinder (1), characterized in that: A magnetic adsorption mechanism (2) is provided at the center of the inner cavity of the cylinder (1), and a rotating mechanism (3) is provided around the magnetic adsorption mechanism (2). The magnetic adsorption mechanism (2) and the rotating mechanism (3) separate the inner cavity of the cylinder (1) into upper and lower parts. The lower part is a sedimentation chamber (101), and the upper part is a filtration chamber (102). A scraping mechanism (4) is provided inside the sedimentation chamber (101), and the scraping mechanism (4) is driven by the rotating mechanism (3). A cylindrical filter element (6) is provided inside the filtration chamber (102), and the filter element (6) abuts against the top of the magnetic adsorption mechanism (2). The cylinder (1) is provided with a power mechanism (5) for driving the rotating mechanism (3) to operate. The magnetic adsorption mechanism (2) includes an outer ring (201), which is fixedly connected to the rotating mechanism (3). The filter element (6) abuts against the top of the outer ring (201). A fixing frame (202) is fixed inside the outer ring (201). An inner ring (203) is fixed at the bottom of the fixing frame (202). Multiple support columns (204) are fixed at the bottom of the inner ring (203). A magnetic suction element (205) is fixed at the bottom of the support column (204).

2. The backwashing liquid return filter device for a pump station according to claim 1, characterized in that: The scraping mechanism (4) includes two columns (401), which are located at the bottom of the rotating mechanism (3). A support rod (402) is fixedly connected between the columns (401). An upper scraper (403) is fixedly connected to the top of the support rod (402). The upper scraper (403) contacts the bottom of the magnetic suction component (205). A lower scraper (404) is fixedly connected to the bottom of the column (401). The lower scraper (404) contacts the inner bottom wall of the cylinder (1).

3. The backwashing liquid return filter device for a pump station according to claim 2, characterized in that: The rotating mechanism (3) includes a hollow annular shell (301), which is fixedly connected to the inner wall of the cylinder (1). The inner side wall of the hollow annular shell (301) is fixed to the outer side wall of the outer ring (201). A rotating ring (302) is rotatably installed inside the bottom wall of the hollow annular shell (301). The rotating ring (302) penetrates the bottom wall of the hollow annular shell (301). The column (401) is fixedly connected to the bottom of the rotating ring (302). A bevel gear ring (303) is fixedly connected to the top of the rotating ring (302). The power mechanism (5) is used to drive the bevel gear ring (303) to rotate.

4. The backwashing liquid return filter device for a pump station according to claim 3, characterized in that: The power mechanism (5) includes a support (501), which is fixedly connected to one side of the cylinder (1). A motor (502) is fixedly connected to the support (501). The output shaft of the motor (502) extends into the hollow annular shell (301) and is fixedly connected to a bevel gear (503). The bevel gear (503) meshes with the bevel gear ring (303).

5. The backwash liquid return filter device for a pump station according to claim 1, characterized in that: The magnetic component (205) includes a plastic shell (2051) and a magnetic block (2052). The plastic shell (2051) is fixedly connected to the bottom of the support column (204), and the magnetic block (2052) is fixedly embedded in the bottom of the plastic shell (2051).

6. The backwash liquid return filter device for a pump station according to claim 1, characterized in that: The cylinder (1) is fixedly connected to the side wall with an inlet pipe (103), a backflushing pipe (104), and a drain pipe (105). The top of the cylinder (1) is fixedly connected to an outlet pipe (106). The inlet pipe (103) and the drain pipe (105) are connected to the sedimentation chamber (101), and the backflushing pipe (104) and the outlet pipe (106) are connected to the filter chamber (102).