A filter device with a rotating self-cleaning function
By designing a filter device with a rotating self-cleaning function, impurities inside the filter housing are automatically removed using a drive motor and cleaning brushes. This solves the problem of easy clogging in traditional filter devices, achieving efficient and automated filtration, and ensuring production continuity and filtration accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN SHENGGUANG TECH DEV CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional filtration devices are easily clogged by iron powder and grease when processing alkaline solutions for cleaning automotive panels, resulting in decreased filtration efficiency and increased risk of residue. They also require frequent disassembly and shutdown for cleaning, which affects production continuity.
Design a filter device with a rotating self-cleaning function. The device uses a drive motor to drive the cleaning rotating shaft and cleaning brush to automatically remove impurities in the filter sleeve. It uses a wedge mesh or stainless steel sintered mesh as the filter medium and combines it with an alkaline solution circulation system to achieve automated cleaning.
It enables efficient cleaning without manual disassembly or machine shutdown, improving filtration efficiency, reducing the risk of clogging, and ensuring production continuity and filtration accuracy.
Smart Images

Figure CN224321088U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater filtration technology. Background Technology
[0002] Automotive steel panels require extremely high cleanliness, necessitating the thorough removal of iron impurities, grease, and other contaminants to prevent defects in subsequent painting or processing. Cleaning automotive steel panels typically involves alkaline solutions, which then require filtration. Traditional filtration devices usually rely on physical interception or chemical degreasing; however, iron powder mixed with grease easily forms sticky compounds, causing filter blockage, reducing filtration efficiency, and increasing the risk of residue buildup. Furthermore, filter blockage by iron powder and grease necessitates frequent disassembly and shutdown for filter media replacement or cleaning, disrupting production line continuity. Summary of the Invention
[0003] To address the aforementioned problems with automotive panel cleaning alkaline solution filtration devices, this invention provides a filtration device with a rotating self-cleaning function.
[0004] The technical solution adopted by this utility model to achieve the above-mentioned objectives is as follows: a filter device with a rotating self-cleaning function, wherein a filter sleeve 10 is provided in the lower part of the filter device body 3, an alkaline solution circulation inlet 4 is provided on the filter device body 3 above the filter sleeve 10, an alkaline solution circulation outlet 5 is provided on the filter device body 3 on the opposite side of the filter sleeve 10, and the alkaline solution circulation outlet 5 is located on one side of the filter sleeve 10; a cleaning rotating main shaft 6 is provided at the center of the filter device body 3, a drive motor 1 is connected to the upper part of the cleaning rotating main shaft 6, the lower part of the cleaning rotating main shaft 6 is located inside the filter sleeve 10 and is connected to a cleaning brush plate 8, the cleaning brush plate 8 is in contact with the inner wall of the filter sleeve 10, and an impurity discharge port 9 is provided at the bottom of the filter device body 3.
[0005] The filter sleeve 10 is a wedge-shaped mesh or a sintered stainless steel mesh.
[0006] The cleaning brush plate 8 is a nylon brush or a wire brush.
[0007] The cleaning rotating spindle 6 is connected to the cleaning brush plate 8 via the cleaning connecting rod 7.
[0008] The drive motor 1 is connected to the upper end of the cleaning rotating spindle 6 via a speed reducer 2.
[0009] This utility model has a filter device with a rotating self-cleaning function. It does not require manual disassembly or backwashing. The device relies on the internal rotating brush to clean the filter sleeve and finally discharge the pollutants, resulting in high filtration efficiency. Attached Figure Description
[0010] Figure 1 This is a front view of the filter device with a rotating self-cleaning function according to this utility model.
[0011] Figure 2 This is a top view of the filter device with a rotating self-cleaning function according to this utility model.
[0012] In the diagram: 1. Drive motor, 2. Reducer, 3. Filter unit body, 4. Alkali circulation inlet, 5. Alkali circulation outlet, 6. Cleaning rotating spindle, 7. Cleaning connecting rod, 8. Cleaning brush plate, 9. Impurity discharge port, 10. Filter sleeve. Detailed Implementation
[0013] The filter device with rotating self-cleaning function of this utility model is as follows: Figure 1 and Figure 2 As shown, the system includes a drive unit, a tank, a cleaning unit, and a drain pipe. The drive unit consists of a drive motor 1 and a reducer 2. The tank consists of a stainless steel filter body 3 and a filter sleeve 10. The cleaning unit consists of a cleaning rotating spindle 6, a cleaning connecting rod 7, and a cleaning brush 8. The filter sleeve 10 is located in the lower part of the filter body 3. The upper edge of the filter sleeve 10 is fixed to the filter body 3 by bolts. An alkaline solution circulation inlet 4 is located on the filter body 3 above the filter sleeve 10. An alkaline solution circulation outlet 5 is located on the filter body 3 on the opposite side of the filter sleeve 10. The cleaning rotating spindle 6 is located at the center of the filter body 3. The upper part of the cleaning rotating spindle 6 is connected to the drive motor 1. The lower part of the cleaning rotating spindle 6 is located inside the filter sleeve 10 and connected to the cleaning brush 8. The cleaning brush 8 contacts the inner wall of the filter sleeve 10. An impurity discharge port 9 is located at the bottom of the filter body 3.
[0014] The alkaline solution enters the device through the circulation inlet 4, is filtered by the filter sleeve 10, and then discharged from the alkaline solution circulation outlet 5. The drive motor 1 rotates the cleaning spindle 6, causing the brush plates to scrape impurities from the surface of the filter screen in the filter sleeve 10. The filter sleeve 10 uses a wedge-shaped mesh filter element and a sintered stainless steel mesh, providing a large filtration area and a long service life. The entire cleaning device is connected to the drive unit via bolts. The cleaning brush plates 8, made of nylon or wire, efficiently scrape away impurities from the filter screen surface. The impurities, leaving the filter screen surface, fall with the descending liquid into the impurity collection chamber at the bottom of the filter. When impurities accumulate to a certain level, the drain valve opens, and the impurities are discharged from the impurity drain port 9 at the bottom.
[0015] This utility model has a simple design structure and small footprint; short cleaning time, low pressure loss, and low water consumption for sewage discharge; high filtration accuracy; and can replace traditional bag filters, basket filters, cartridge filters, vibrating screen filters, plate and frame filters, bag filters, etc. in many fields.
Claims
1. A filter device with a rotating self-cleaning function, characterized in that: The filter body (3) is provided with a filter sleeve (10) at the lower part. The filter body (3) is provided with an alkaline circulation inlet (4) above the filter sleeve (10). The filter body (3) is provided with an alkaline circulation outlet (5) on the opposite side of the filter sleeve (10). The alkaline circulation outlet (5) is located on one side of the filter sleeve (10). The filter body (3) is provided with a cleaning rotating spindle (6) at the center. The upper part of the cleaning rotating spindle (6) is connected to a drive motor (1). The lower part of the cleaning rotating spindle (6) is located inside the filter sleeve (10) and connected to a cleaning brush plate (8). The cleaning brush plate (8) is in contact with the inner wall of the filter sleeve (10). The filter body (3) is provided with an impurity discharge port (9) at the bottom.
2. A filter device with a rotating self-cleaning function according to claim 1, characterized in that: The filter sleeve (10) is a wedge-shaped mesh or a stainless steel sintered mesh.
3. A filter device with a rotating self-cleaning function according to claim 1, characterized in that: The cleaning brush (8) is a nylon brush or a wire brush.
4. A filter device with a rotating self-cleaning function according to claim 1, characterized in that: The cleaning rotating spindle (6) is connected to the cleaning brush plate (8) via the cleaning connecting rod (7).
5. A filter device with a rotating self-cleaning function according to claim 1, characterized in that: The drive motor (1) is connected to the upper end of the cleaning rotating spindle (6) via a speed reducer (2).