A drum-type dynamic filter
By using a combination of scrapers and brushes to clean the filter media from the surface of the shovel and filter cartridge, combined with a water spray system for rinsing, the problem of material buildup on the shovel surface is solved, achieving efficient operation of the filter and improved filtration effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG CHENYIN MASCH MFG CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-29
AI Technical Summary
In existing rotary drum dynamic filters, filter material tends to accumulate on the surface of the shovel plate during the filtration process, affecting the removal effect and leading to a decrease in filtration efficiency.
The filter cartridge employs a combination of scraper and brush. The scraper is connected to the shovel plate via a thread and moves to clean the filter material. The brush is driven by an electric push rod to brush the surface of the filter cartridge. Combined with a water spray structure, the filter cartridge is rinsed.
It effectively removes filter material from the surface of the shovel and filter cartridge, maintaining the high-efficiency operation of the filter and improving the filtration effect.
Smart Images

Figure CN224292705U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filtration device technology, specifically a rotary drum dynamic filter. Background Technology
[0002] Rotary drum vacuum filters are a type of continuous filter. They use negative pressure as the driving force for filtration, with the filter surface on the cylindrical rotating drum. Originally used in alkali production and mining industries, these filters have since expanded to chemical, coal, and sludge dewatering sectors. Current rotary drum dynamic filters often rely solely on shovels to remove filter media from their surface during filtration. Over time, this accumulation of filter media on the shovels reduces their removal efficiency. Utility Model Content
[0003] The purpose of this invention is to provide a rotary drum dynamic filter to solve the problems existing in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a rotary drum dynamic filter, comprising a filter body, a shovel plate fixedly connected to one side of the filter body, a first support frame fixedly connected to both ends of the shovel plate, a motor fixedly connected to one side of the first support frame, a reciprocating screw fixedly connected to one end of the motor, a moving block threadedly connected to the surface of the reciprocating screw, a scraper fixedly connected to one side of the moving block, a second support frame fixedly connected to both ends of the filter body, an electric push rod fixedly connected to the top of the second support frame, a moving plate fixedly connected to one end of the electric push rod, fixing bolts movably connected to both sides inside the moving plate, a brush disposed below the moving plate, the other end of the fixing bolts threadedly connected to the inside of the brush, and a water spray structure fixedly connected to one side of the second support frame.
[0005] Preferably, the water spray structure includes an external water pipe, one end of which is connected to an internal water pipe, and one side of the internal water pipe is connected to a plurality of nozzles, which are arranged at an angle.
[0006] Preferably, a groove is provided on the top of the inner side of the first support frame, and a slider is fixedly connected to the top of the movable block, with the top of the slider slidably connected to the inside of the groove.
[0007] Preferably, fixed columns are fixedly connected to both sides of the top of the movable plate, and the surface of the fixed columns is movably connected to the interior of the second support frame.
[0008] Preferably, the scraper and the shovel have the same length, and one side of the scraper is in contact with the surface of the shovel.
[0009] Preferably, the brush is arc-shaped, and the arc is consistent with the arc of the filter cartridge of the filter body.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] This invention uses a scraper to remove filter material from the filter cylinder on the surface of the filter body. The internal threaded connection between the moving block and the reciprocating screw allows the scraper to move left and right on the scraper surface, facilitating the removal of residual filter material. After filtration is complete, an external water pipe connects to the internal water pipe. Once a water source is connected, the nozzle is opened, and an electric push rod pushes the moving plate and brush downwards until the brush adheres to the surface of the filter cylinder. This brushes away any remaining filter material in the small holes of the filter cylinder, maintaining the subsequent filtration effect. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0013] Figure 2 This is a schematic diagram of the structure of this utility model from below;
[0014] Figure 3 This is a schematic diagram of the water spray structure and the electric push rod structure in this utility model;
[0015] Figure 4 This is a schematic diagram of the shovel and scraper structure in this utility model;
[0016] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.
[0017] In the diagram: 1. Filter body; 2. Shovel plate; 3. First support frame; 4. Reciprocating screw; 5. Motor; 6. Moving block; 7. Sliding block; 8. Groove; 9. Scraper; 10. Second support frame; 11. Electric push rod; 12. Fixed column; 13. Water spray structure; 131. External water pipe; 132. Internal water pipe; 133. Spray head; 14. Moving plate; 15. Brush; 16. Fixing bolt. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0019] Please see Figure 1-5As shown, a rotary drum dynamic filter includes a filter body 1. A shovel plate 2 is fixedly connected to one side of the filter body 1. A first support frame 3 is fixedly connected to both ends of the shovel plate 2. A motor 5 is fixedly connected to one side of the first support frame 3. A reciprocating screw 4 is fixedly connected to one end of the motor 5. The other end of the reciprocating screw 4 is rotatably connected to the inner wall of the first support frame 3. A moving block 6 is threadedly connected to the surface of the reciprocating screw 4. A scraper 9 is fixedly connected to one side of the moving block 6. A second support frame 10 is fixedly connected to both ends of the filter body 1. An electric push rod 11 is fixedly connected to the top of the second support frame 10. A moving plate 14 is fixedly connected to one end of the electric push rod 11. Fixing bolts 16 are movably connected to both sides inside the moving plate 14. A brush 15 is provided below the moving plate 14. The other end of the fixing bolt 16 is threadedly connected to the inside of the brush 15. A water spray structure 13 is fixedly connected to one side of the second support frame 10.
[0020] The water spray structure 13 includes an external water pipe 131, one end of which is connected to an internal water pipe 132. A plurality of nozzles 133 are connected to one side of the internal water pipe 132, and the nozzles 133 are inclined. In this embodiment, through the arrangement of the external water pipe 131, the internal water pipe 132 and the nozzles 133 in the water spray structure 13, after the filter body 1 is working, an external high-pressure water pump can be connected to the external water pipe 131, and the water source can be transported to the internal water pipe 132 through the external water pipe 131. The filter cartridge on the surface of the filter body 1 is rinsed through the nozzles 133 to facilitate better cleaning in the future.
[0021] The top of the inner side of the first support frame 3 is provided with a groove 8. The top of the movable block 6 is fixedly connected to a slider 7. The top of the slider 7 is slidably connected to the inside of the groove 8. In this embodiment, the slider 7 can be slidably connected to the inside of the groove 8 to provide auxiliary limiting and guiding for the movable block 6, making the movable block 6 more stable when moving.
[0022] Fixed columns 12 are fixedly connected to both sides of the top of the movable plate 14. The surface of the fixed columns 12 is movably connected to the interior of the second support frame 10. In this embodiment, the fixed columns 12 can provide auxiliary support for the movable plate 14 and maintain the stability of the movable plate 14 when it moves.
[0023] The scraper 9 and the shovel 2 have the same length, and one side of the scraper 9 is in contact with the surface of the shovel 2. In this embodiment, this design makes it easy for the scraper 9 to clean the surface of the shovel 2, so that the shovel 2 can work better in the future.
[0024] The brush 15 is arc-shaped, and the arc is consistent with the arc of the filter cartridge of the filter body 1. In this embodiment, this design allows the brush 15 to fit against the surface of the filter body 1, thereby improving the subsequent cleaning effect.
[0025] It is worth noting that the technical features such as the filter body 1 proposed in this technical solution should be regarded as prior art. The specific structure, working principle, control method and spatial arrangement of these technical features can be selected using conventional methods in this field. This technical solution will not elaborate further.
[0026] Working Principle: During filtration, the filter body 1 primarily relies on the scraper plate 2 to remove filter material adhering to the filter cartridge. However, filter material can also easily adhere to the scraper plate 2. Therefore, in this device, the motor 5 is first turned on to drive the reciprocating screw 4 to rotate. Then, through the threaded connection between the moving block 6 and the reciprocating screw 4, the moving block 6, the slider 7, and the scraper plate 9 move left and right on the surface of the scraper plate 2. This allows the scraper plate 9 to scrape away the remaining filter material on the scraper plate 2, thereby further improving the filtration effect. After the filtration is completed, the flow stops. Filter material is poured into the filter body 1, and the filter body 1 is kept rotating. Then, the external water pipe 131 is connected to the internal water pipe 132, and then the external water pipe 131 is connected through an external water pump. After the water source is connected, the nozzle 133 is turned on. Then, the electric push rod 11 is turned on, pushing the moving plate 14 and the brush 15 to move downwards until the surface of the brush 15 is in contact with the filter cartridge on the surface of the filter body 1. As the filter body 1 rotates, the brush 15 brushes the small holes on the surface of the filter cartridge to keep the surface of the filter cartridge clean and improve the subsequent filtration effect.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rotary drum dynamic filter, comprising a filter body (1), characterized in that: A shovel plate (2) is fixedly connected to one side of the filter body (1). A first support frame (3) is fixedly connected to both ends of the shovel plate (2). A motor (5) is fixedly connected to one side of the first support frame (3). A reciprocating screw (4) is fixedly connected to one end of the motor (5). A moving block (6) is threadedly connected to the surface of the reciprocating screw (4). A scraper (9) is fixedly connected to one side of the moving block (6). A second support frame (10) is fixedly connected to both ends of the filter body (1). An electric push rod (11) is fixedly connected to the top of the second support frame (10). A moving plate (14) is fixedly connected to one end of the electric push rod (11). Fixing bolts (16) are movably connected to both sides inside the moving plate (14). A brush (15) is provided below the moving plate (14). The other end of the fixing bolt (16) is threadedly connected to the inside of the brush (15). A water spray structure (13) is fixedly connected to one side of the second support frame (10).
2. The rotary drum dynamic filter according to claim 1, characterized in that: The water spray structure (13) includes an external water pipe (131), one end of which is connected to an internal water pipe (132), and one side of the internal water pipe (132) is connected to a plurality of nozzles (133), and the nozzles (133) are inclined.
3. The rotary drum dynamic filter according to claim 1, characterized in that: The top of the inner side of the first support frame (3) is provided with a groove (8), and the top of the moving block (6) is fixedly connected with a slider (7), and the top of the slider (7) is slidably connected to the inside of the groove (8).
4. A rotary drum dynamic filter according to claim 1, characterized in that: The top of the movable plate (14) is fixedly connected to two sides of a fixed column (12), and the surface of the fixed column (12) is movably connected to the interior of the second support frame (10).
5. A rotary drum dynamic filter according to claim 1, characterized in that: The scraper (9) and the shovel (2) have the same length, and one side of the scraper (9) is in contact with the surface of the shovel (2).
6. A rotary drum dynamic filter according to claim 1, characterized in that: The brush (15) is arc-shaped, and the arc is consistent with the arc of the filter cartridge of the filter body (1).