A powder particle size classification device

Abstract

This utility model discloses a powder particle size classification device, including a classification box. Fixed seats are fixedly connected to both ends of the lower surface of the classification box. A classification sieve plate is fixedly connected to the inner side of the classification box. A motor is fixedly installed at one end of the classification box, and a rotating shaft is rotatably installed at one end of the motor. The rotating shaft is rotatably installed at the center position of the classification sieve plate. A combination screw is assembled at one end of the rotating shaft, and a scraper is fixedly connected to one end of the combination screw. The scraper is rotatably installed inside the classification box. A hopper is provided at one end of the upper surface of the classification box. A fan is fixedly installed at one end of the classification box, and an air inlet pipe is fixedly connected to the inlet of the fan. A valve is fixedly installed at one end of the air inlet pipe. A return cylinder is fixedly connected to the other end of the classification box for forced co-flow ventilation, improving efficiency and facilitating efficient classification processing with high adaptability.

Description

Technical Field

[0001] This utility model relates to the field of powder classification, and more specifically, to a powder particle size classification device. Background Technology

[0002] With the development of the materials industry, powder has become one of the indispensable materials in people's lives. Powder is an aggregate composed of many small particles. During production, powder can be processed into different shapes according to the material requirements. Among them, spherical powder has good flowability and is therefore widely used.

[0003] The utility model patent CN216965284U discloses a spherical powder particle size classification device, including a classification filter body. The body has an anti-clogging mechanism, which includes a drive motor. The output end of the drive motor is connected to a fixed rotating shaft, and the bottom end of the fixed rotating shaft is fixedly connected to a first conical tooth. The surface of the first conical tooth meshes with the surface of a second conical tooth, and a drive shaft is sleeved inside the second conical tooth. Both ends of the drive shaft are sleeved with striking wheels, and a fixed block is installed above the striking wheels. This utility model, by incorporating striking wheels and partitions, and using three sets of partitions installed inside the classification filter body, can classify and screen spherical powders. The drive shaft drives two sets of striking wheels to rotate, causing the partitions to vibrate up and down inside the classification filter body, preventing clogging during use.

[0004] The above-disclosed structure uses a vertical filtration device to set up a multi-layer structure for multi-layer grading. It can only be processed by passive screening and is not convenient to discharge from the side. In addition, it lacks a fan and an air inlet pipe for ventilation to force the powder to flow, resulting in poor efficiency and low adaptability. It needs to be improved. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a powder particle size classification device. By arranging the classification box horizontally and installing multiple classification sieves, it can process the powder horizontally. Furthermore, a scraper installed on the rotating shaft can stir the powder, which is conducive to lifting and circulation, and is highly efficient and stable. In addition, an air inlet pipe installed on the fan, combined with a return cylinder, can force co-flow through ventilation, improve efficiency, facilitate efficient classification processing, and has high adaptability.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A powder particle size classification device includes a classification box. Fixed seats are fixedly connected to both ends of the lower surface of the classification box. A classification sieve plate is fixedly connected to the inner side of the classification box. A motor is fixedly installed at one end of the classification box, and a rotating shaft is rotatably installed at one end of the motor. The rotating shaft is rotatably installed at the center position of the classification sieve plate. A combination screw is assembled at one end of the rotating shaft, and a scraper is fixedly connected to one end of the combination screw. The scraper is rotatably installed inside the classification box. A hopper is provided at one end of the upper surface of the classification box. A fan is fixedly installed at one end of the classification box, and an air inlet pipe is fixedly connected to the inlet of the fan. A valve is fixedly installed at one end of the air inlet pipe. A return cylinder is fixedly connected to the other end of the classification box, and an isolation mesh is fixedly connected to the inner side of the return cylinder.

[0008] Furthermore, a cover plate is fixedly connected to one end of the return cylinder, and the cover plate is located on one side of the isolation net.

[0009] Furthermore, a return pipe is fixedly installed at one end of the cover plate, and one end of the return pipe is fixedly connected to one end of the intake pipe.

[0010] Furthermore, the return pipe is fixedly connected to the upper side of the grading box, with one end of the return pipe located below the valve. By installing the cover plate and the return pipe on the return cylinder, the incoming air can be returned and reused, while preventing overflow from separate parts. This ensures safety, stability, and high adaptability.

[0011] Furthermore, the lower surface of the grading box is provided with a discharge port, which is distributed at intervals on one side of the grading screen plate.

[0012] Furthermore, an arc-shaped sealing plate is slidably installed on the inner side of the discharge port, and a support rod is fixedly connected to the lower surface of the arc-shaped sealing plate.

[0013] Furthermore, an arc-shaped positioning plate is fixedly connected to the lower end of the support rod. The arc-shaped positioning plate is fixedly installed on the lower surface of the grading box by screws. An arc-shaped sealing plate is installed through the discharge port. Combined with the support rod and the arc-shaped positioning plate, they can be installed and positioned in combination, which is conducive to sealing and protection, and also facilitates material discharge from the bottom, which is efficient and stable.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This scheme uses a horizontal arrangement of the grading box and the installation of multiple grading sieves to process the powder horizontally. The scraper installed by the rotating shaft can stir the powder, which is conducive to the lifting and flow, and is efficient and stable. The air inlet pipe installed by the fan, combined with the return cylinder, can force the flow through ventilation, improve efficiency, facilitate efficient grading, and has high adaptability.

[0016] (2) By installing a cover plate and a return pipe on the return cylinder, the incoming air can be returned and reused, while avoiding the overflow of the separate parts. It is safe, stable and highly adaptable.

[0017] (3) By installing an arc-shaped sealing plate through the discharge port and connecting it with the support rod to the arc-shaped positioning plate, it can be installed and positioned in combination, which is conducive to sealing and protection, and also facilitates material discharge from the bottom, which is efficient and stable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-section of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the connection between the rotating shaft and the scraper in this utility model;

[0021] Figure 4 This is a schematic diagram of the connection between the rotating shaft and the scraper of this utility model;

[0022] Figure 5 This is a schematic diagram of the arc-shaped sealing plate of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Grading box, 11. Fixed base, 12. Grading screen plate, 13. Motor, 14. Rotating shaft, 15. Combination screw, 16. Scraper, 17. Hopper, 2. Fan, 21. Air inlet pipe, 22. Valve, 23. Return cylinder, 24. Isolation net, 25. Cover plate, 26. Return pipe, 3. Discharge port, 31. Arc-shaped sealing plate, 32. Support rod, 33. Arc-shaped positioning plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 3 and Figure 4A powder particle size classification device includes a classification chamber 1. Fixed seats 11 are fixedly connected to both ends of the lower surface of the classification chamber 1. A classification sieve plate 12 is fixedly connected to the inner side of the classification chamber 1. A motor 13 is fixedly installed at one end of the classification chamber 1. A rotating shaft 14 is rotatably installed at one end of the motor 13, and the rotating shaft 14 is rotatably installed at the center position of the classification sieve plate 12. A combination screw 15 is assembled and installed at one end of the rotating shaft 14. A scraper 16 is fixedly connected to one end of the combination screw 15. The scraper 16 is separately installed by the combination screw 15, allowing for combined connection and positioning, facilitating installation and use. Driven by the motor 13, it can stir the input particles, thus facilitating flow and sieving, resulting in high efficiency and stability. The scraper 16 is rotatably installed inside the classification chamber 1 for classification. A hopper 17 is provided at one end of the upper surface of the box 1. Powder can be fed into the hopper 17 during use, and then sealed and positioned to prevent overflow and leakage. A blower 2 is fixedly installed at one end of the grading box 1. An air inlet pipe 21 is fixedly connected to the inlet of the blower 2. A valve 22 is fixedly installed at one end of the air inlet pipe 21. A return cylinder 23 is fixedly connected to the other end of the grading box 1. An isolation net 24 is fixedly connected to the inside of the return cylinder 23. Air is drawn from the air inlet pipe 21 by the blower 2 and then introduced into the grading box 1. It can blow up the separated particles and force them to pass through the grading sieve plate 12. It can be screened separately from the multi-layer grading sieve plate 12, so that they can be separated according to particle size. It is convenient to store them in different spaces, thereby adjusting the screening. It has high adaptability, stability and efficiency, and is easy to adjust and use.

[0027] Please see Figure 1 and Figure 2 A cover plate 25 is fixedly connected to one end of the return cylinder 23. The cover plate 25 is located on one side of the isolation net 24. A return pipe 26 is fixedly installed at one end of the cover plate 25. One end of the return pipe 26 is fixedly connected to one end of the air inlet pipe 21. The return pipe 26 is fixedly connected to the upper side of the grading box 1. One end of the return pipe 26 is located below the valve 22. By installing the cover plate and return pipe on the return cylinder, the incoming air can be returned and reused. At the same time, it can avoid the overflow of the separate parts, which is safe, stable, and highly adaptable. After the incoming air passes through the multi-layer grading screen 12, it finally enters the interior of the return cylinder 23 from the isolation net 24, and then enters the interior of the air inlet pipe 21 through the return pipe 26. It can be recycled and reused, reducing the air extraction pressure, thereby reducing energy consumption. It can also prevent powder overflow, which is convenient for installation and use and has high adaptability.

[0028] Please see Figure 2 and Figure 5The lower surface of the grading box 1 is provided with a discharge port 3, which is distributed at intervals on one side of the grading screen plate 12. An arc-shaped sealing plate 31 is slidably installed on the inner side of the discharge port 3. A support rod 32 is fixedly connected to the lower surface of the arc-shaped sealing plate 31. An arc-shaped positioning plate 33 is fixedly connected to the lower end of the support rod 32. The arc-shaped positioning plate 33 is fixedly installed on the lower surface of the grading box 1 by screws. The arc-shaped sealing plate is installed through the discharge port, and the arc-shaped positioning plate is connected to the support rod. It can be installed and positioned in combination, which is conducive to sealing and protection, and also facilitates material discharge from the bottom, which is efficient and stable.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A powder particle size classification device, comprising a classification chamber (1), wherein fixed seats (11) are fixedly connected to both ends of the lower surface of the classification chamber (1), characterized in that: A grading sieve plate (12) is fixedly connected to the inner side of the grading box (1). A motor (13) is fixedly installed at one end of the grading box (1). A rotating shaft (14) is rotatably installed at one end of the motor (13). The rotating shaft (14) is rotatably installed at the center position of the grading sieve plate (12). A combination screw (15) is assembled at one end of the rotating shaft (14). A scraper (16) is fixedly connected to one end of the combination screw (15). Rotary installation is mounted on the inner side of the grading box (1). A hopper (17) is provided at one end of the upper surface of the grading box (1). A blower (2) is fixedly installed at one end of the grading box (1). An air inlet pipe (21) is fixedly connected to the inlet of the blower (2). A valve (22) is fixedly installed at one end of the air inlet pipe (21). A return cylinder (23) is fixedly connected to the other end of the grading box (1). An isolation net (24) is fixedly connected to the inner side of the return cylinder (23).

2. The powder particle size classification equipment according to claim 1, characterized in that: One end of the return tube (23) is fixedly connected to a cover plate (25), which is located on one side of the isolation net (24).

3. The powder particle size classification equipment according to claim 2, characterized in that: A return pipe (26) is fixedly installed at one end of the cover plate (25), and one end of the return pipe (26) is fixedly connected to one end of the air intake pipe (21).

4. The powder particle size classification equipment according to claim 3, characterized in that: The return pipe (26) is fixedly connected to the upper side of the grading box (1), and one end of the return pipe (26) is located below the valve (22).

5. A powder particle size classification device according to claim 1, characterized in that: The lower surface of the grading box (1) is provided with a discharge port (3), which is distributed at intervals on one side of the grading screen plate (12).

6. A powder particle size classification device according to claim 5, characterized in that: An arc-shaped sealing plate (31) is slidably installed on the inner side of the discharge port (3), and a support rod (32) is fixedly connected to the lower surface of the arc-shaped sealing plate (31).

7. A powder particle size classification device according to claim 6, characterized in that: The lower end of the support rod (32) is fixedly connected to an arc-shaped positioning plate (33), which is fixedly installed on the lower surface of the grading box (1) by screws.

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