Vortex air classification device for controlling particle size of silica powder
By designing a vortex air classification device for the material conveying and crushing components, the problems of uneven particle separation and feed inlet accumulation in existing devices have been solved, achieving uniform material conveying and crushing, and improving classification efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI HAITIAN POWDER MATERIALS CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-24
AI Technical Summary
Existing eddy air classifiers for silicon micropowder particle size control suffer from uneven particle separation due to the manual feeding mode, and the feed inlet is prone to clumping, which increases production costs and complexity.
A vortex air classification device including a material conveying component and a crushing component was designed. The material conveying roller and crusher are driven by a rotary motor to achieve uniform material conveying and crushing, avoid agglomeration, and improve classification efficiency.
It effectively prevents material clumping, improves the stability of output quality and grading efficiency, reduces labor and material costs, and enhances product quality consistency.
Smart Images
Figure CN224156928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silicon micropowder particle size control technology, and more specifically to an eddy current air classification device for silicon micropowder particle size control. Background Technology
[0002] With the rapid development of industries such as electronics, chemicals, and building materials, the demand for silicon micropowder is constantly increasing, and the requirements for its performance indicators such as particle size and purity are also becoming more and more stringent. The eddy current air classifier for silicon micropowder particle size control can accurately classify silicon micropowder according to particle size. By adjusting parameters such as rotation speed and air volume, it can effectively separate silicon micropowder in different particle size ranges, thereby obtaining silicon micropowder products that meet specific particle size requirements.
[0003] The existing eddy air classifiers for controlling the particle size of silicon micropowder mostly use manual feeding mode. This often results in a lot of small and large particles falling together during the classification process. This makes it impossible to effectively separate particles of different sizes, resulting in inconsistent product quality.
[0004] At the same time, these existing vortex air classifiers have a prominent problem during feeding: the design of the feed inlet is flawed. Due to the unreasonable structural design of the feed inlet, the material easily accumulates and clumps at the feed inlet during the actual feeding process. As the material accumulates, it gradually forms larger lumps, which fall directly to the bottom of the device under the influence of gravity. Once this happens, a secondary classification operation is required. The secondary classification not only increases the production process but also requires more manpower, material resources, and time.
[0005] To address the aforementioned problems, this application provides a vortex air classification device for controlling the particle size of silicon micropowder. Utility Model Content
[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a vortex air classification device for controlling the particle size of silicon micropowder, so as to solve the problems existing in the background art.
[0007] This utility model provides the following technical solution: a vortex air classification device for controlling the particle size of silicon micro powder, including a box assembly and a feeding and discharging assembly and an air inlet assembly installed on the upper and lower sides of the box assembly. A material conveying assembly is installed on the feeding and discharging assembly, and a crushing assembly is installed on the material conveying assembly.
[0008] Preferably, the housing assembly includes a main housing, a secondary housing, an air outlet pipe, and a first feed hopper, wherein the secondary housing is fixedly installed on the main housing, the air outlet pipe is fixedly installed on the side wall of the secondary housing and communicates with its inner cavity, and the first feed hopper is fixedly snapped onto the upper end of the secondary housing.
[0009] Preferably, the air intake assembly includes an air intake box, a discharge port, a baffle, and an air intake pipe. The air intake box is fixedly installed below the main box body, and a discharge port is provided at the bottom of the air intake box. The baffle is fixedly installed inside the air intake box, and the air intake pipe is fixedly installed on the side wall of the air intake box and communicates with its inner cavity. At this time, the high-pressure airflow enters the air intake box through the air intake pipe and forms a stable vortex between the box body assembly and the air intake assembly.
[0010] Preferably, the feeding and discharging assembly includes a dust baffle box, a first rotary motor, a transmission rod, and a dispersing disc. The dust baffle box is fixedly installed above the main body, the first rotary motor is fixedly installed on the top of the inner wall of the dust baffle box, the transmission shaft of the first rotary motor is fixedly sleeved on the transmission rod, and the dispersing disc is located directly below the first feed hopper and fixedly sleeved on the lower end of the transmission rod. At this time, the transmission shaft of the first rotary motor drives the transmission rod and the dispersing disc fixedly sleeved on the bottom of the transmission rod to rotate.
[0011] Preferably, the material conveying assembly includes a fixture, a conveying pipe, a feed pipe, a second feed hopper, a second rotary motor, a conveying roller, and a discharge pipe. The fixture is fixedly installed on the side wall of the dust baffle box, and the end of the fixture away from the dust baffle box is fixedly sleeved on the outer wall of the conveying pipe. The feed pipe is fixedly installed on the top left end of the conveying pipe and communicates with its inner cavity. The second feed hopper is fixedly installed on the feed pipe. The conveying roller is disposed in the inner cavity of the conveying pipe. The second rotary motor is fixedly installed on the left end of the conveying pipe, and its drive shaft is fixedly sleeved on the conveying roller. The discharge pipe is fixedly installed on the lower right end of the conveying pipe and communicates with its inner cavity. At this time, silicon micropowder can be poured into the second feed hopper and flow into the conveying pipe through the feed pipe. At the same time, the drive shaft of the second rotary motor drives the conveying roller to evenly transport the flowing silicon micropowder to the right end of the conveying pipe, and then flow into the crushing assembly through the discharge pipe.
[0012] Preferably, the crushing assembly includes a crushing box, crushers, a third rotary motor, rotary gears, a protective shell, fixing screws, and a discharge bend. The discharge bend is fixedly installed on the top of the crushing box and communicates with its inner cavity. The crushers are rotated and sleeved in pairs inside the crushing box. The rotary gear is fixedly sleeved at the end of the crusher near the protective shell. The third rotary motor is fixedly installed on the side wall of the crushing box, and its drive shaft is fixedly sleeved with the crusher located on the right side. The protective shell is located at the rear end of the crushing box. The fixing screws are located at the four corners of the side wall of the protective shell, and their threaded ends penetrate the protective shell and are threaded into the crushing box. The discharge bend is fixedly installed at the lower end of the crushing box and communicates with its inner cavity. At this time, the drive shaft of the third rotary motor drives the crusher fixedly sleeved with it, and then drives the crusher on the other side to rotate through the meshing action between the rotary gears fixedly sleeved on the crusher.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] When using the device, silicon powder is poured into the second feed hopper. The second rotary motor drives the conveying roller to evenly transport the incoming silicon powder to the right end of the conveying pipe, and then it flows into the crushing box through the discharge pipe. This design effectively improves the stability of the output quality. After the material is transported to the crushing box, the third rotary motor drives the crusher that is fixedly connected to it, and through the meshing action between the rotating gears, it drives the crusher on the other side to rotate, thereby breaking the silicon powder that has been piled up into lumps into its original powder form. This design can effectively avoid the problem of low classification efficiency caused by material agglomeration. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a partial cross-sectional view of the overall structure of this utility model.
[0017] Figure 3 For the present utility model Figure 2 Schematic diagram of the structure at point A in the middle.
[0018] Figure 4 This is a schematic diagram of the material crushing component and material conveying component of this utility model.
[0019] The attached diagram is labeled as follows: 1. Box assembly; 101. Main box; 102. Auxiliary box; 103. Air outlet pipe; 104. First feed hopper; 2. Air intake assembly; 201. Air inlet box; 202. Material discharge port; 203. Material stopper; 204. Air inlet pipe; 3. Material feeding and discharging assembly; 301. Ash trap; 302. First rotary motor; 303. Transmission rod; 304. Dispersion disc; 4. Material conveying assembly; 401. Fixer; 402. Material conveying pipe; 403. Feeding pipe; 404. Second feed hopper; 405. Second rotary motor; 406. Material conveying roller; 407. Discharge pipe; 5. Crushing assembly; 501. Crushing box; 502. Crusher; 503. Third rotary motor; 504. Rotary gear; 505. Protective shell; 506. Fixing screw; 507. Discharge bend. Detailed Implementation
[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The eddy current air classification device for controlling the particle size of silicon micropowder involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] Reference Figure 1 and Figure 2 This utility model provides a vortex air classification device for controlling the particle size of silicon micro powder, including a box assembly 1 and a feeding and discharging assembly 3 and an air inlet assembly 2 installed on the upper and lower sides of the box assembly 1. A material conveying assembly 4 is installed on the feeding and discharging assembly 3, and a crushing assembly 5 is installed on the material conveying assembly 4.
[0022] Reference Figure 1 and Figure 2 The housing assembly 1 includes a main housing 101, a secondary housing 102, an air outlet pipe 103, and a first feed hopper 104. The secondary housing 102 is fixedly installed on the main housing 101, the air outlet pipe 103 is fixedly installed on the side wall of the secondary housing 102 and communicates with its inner cavity, and the first feed hopper 104 is fixedly snapped onto the upper end of the secondary housing 102.
[0023] Reference Figure 1 and Figure 2The air intake assembly 2 includes an air intake box 201, a material discharge port 202, a baffle 203, and an air intake pipe 204. The air intake box 201 is fixedly installed below the main box 101. The bottom of the air intake box 201 has a material discharge port 202. The baffle 203 is fixedly installed inside the air intake box 201. The air intake pipe 204 is fixedly installed on the side wall of the air intake box 201 and communicates with its inner cavity. At this time, the high-pressure airflow enters the air intake box 201 through the air intake pipe 204 and forms a stable vortex between the box assembly 1 and the air intake assembly 2.
[0024] Reference Figure 1 and Figure 2 The feeding and discharging assembly 3 includes a dust baffle 301, a first rotary motor 302, a transmission rod 303, and a dispersing disc 304. The dust baffle 301 is fixedly installed above the main body 101. The first rotary motor 302 is fixedly installed on the top of the inner wall of the dust baffle 301. The transmission shaft of the first rotary motor 302 is fixedly sleeved on the transmission rod 303. The dispersing disc 304 is located directly below the first feed hopper 104 and is fixedly sleeved on the lower end of the transmission rod 303. At this time, the transmission shaft of the first rotary motor 302 drives the transmission rod 303 and the dispersing disc 304 fixedly sleeved on the bottom of the transmission rod 303 to rotate.
[0025] Reference Figure 2 and Figure 3 The material conveying assembly 4 includes a fixture 401, a conveying pipe 402, a feed pipe 403, a second feed hopper 404, a second rotary motor 405, a conveying roller 406, and a discharge pipe 407. The fixture 401 is fixedly installed on the side wall of the dust-blocking box 301. One end of the fixture 401, away from the dust-blocking box 301, is fixedly sleeved onto the outer wall of the conveying pipe 402. The feed pipe 403 is fixedly installed on the top left end of the conveying pipe 402 and communicates with its inner cavity. The second feed hopper 404 is fixedly installed on the feed pipe 403. The conveying roller 406 is positioned on the conveying pipe 407. The inner cavity of the material pipe 402 is in the middle. The second rotary motor 405 is fixedly installed at the left end of the material pipe 402, and its drive shaft is fixedly sleeved with the material roller 406. The discharge pipe 407 is fixedly installed on the lower side of the right end of the material pipe 402 and connected to its inner cavity. At this time, silicon micro powder can be poured into the second feed hopper 404 and flow into the material pipe 402 through the feed pipe 403. At the same time, the drive shaft of the second rotary motor 405 drives the material roller 406 to evenly transport the flowing silicon micro powder to the right end of the material pipe 402, and then flow into the crushing component 5 through the discharge pipe 407.
[0026] Reference Figure 2-4The crushing assembly 5 includes a crushing box 501, crushers 502, a third rotary motor 503, a rotary gear 504, a protective shell 505, fixing screws 506, and a discharge bend 507. The discharge pipe 407 is fixedly installed on the top of the crushing box 501 and communicates with its inner cavity. The crushers 502 are rotatably fitted in pairs inside the crushing box 501. The end of the crusher 502 closest to the protective shell 505 is fixedly fitted with the rotary gear 504. The third rotary motor 503 is fixedly installed on the side wall of the crushing box 501, and its drive shaft is connected to the crusher located on the right side. The feeder 502 is fixedly sleeved, and the protective shell 505 is set at the rear end of the crushing box 501. The fixing screws 506 are set at the four corners of the side wall of the protective shell 505, and their threaded ends pass through the protective shell 505 and are threaded into the crushing box 501. The discharge bend 507 is fixedly installed at the lower end of the crushing box 501 and is connected to its inner cavity. At this time, the drive shaft of the third rotary motor 503 drives the feeder 502 fixedly sleeved with it, and then drives the feeder 502 on the other side to rotate through the meshing action between the rotating gears 504 fixedly sleeved on the feeder 502.
[0027] The working principle of this utility model is as follows: When using the device, high-pressure airflow enters the air inlet box 201 through the air inlet pipe 204, forming a stable vortex between the box assembly 1 and the air inlet assembly 2. At this time, silicon micro powder is poured into the second feed hopper 404 and flows into the conveying pipe 402 through the feed pipe 403. Simultaneously, the drive shaft of the second rotary motor 405 drives the conveying roller 406 to evenly transport the incoming silicon micro powder to the right end of the conveying pipe 402, and then flows into the crushing box 501 through the discharge pipe 407. At this time, the drive shaft of the third rotary motor 503 drives the crusher 502 fixedly sleeved with it, and then the rotating teeth fixedly sleeved on the crusher 502 drive the crusher. The meshing action between the wheels 504 drives the crusher 502 on the other side to rotate, thereby breaking the lumpy silicon powder into its original powder form. The powder is then carried into the first feed hopper 104 through the discharge bend 507 and finally falls above the dispersion disc 304. At this time, the transmission shaft of the first rotary motor 302 drives the transmission rod 303 and the dispersion disc 304 fixedly sleeved at the bottom of the transmission rod 303 to rotate, causing the silicon powder on the dispersion disc 304 to fall off. The larger silicon powder particles fall to the bottom of the air inlet box 201 and are discharged and collected through the discharge port 202. At the same time, the smaller silicon powder particles are discharged and collected through the air outlet pipe 103 under the action of the vortex.
[0028] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0029] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A vortex air classifier for controlling the particle size of silicon micropowder, comprising a housing assembly (1) and an inlet / outlet assembly (3) and an air inlet assembly (2) installed on the upper and lower sides of the housing assembly (1), characterized in that: The feeding and discharging assembly (3) is equipped with a conveying assembly (4), and the conveying assembly (4) is equipped with a crushing assembly (5). The conveying assembly (4) includes a discharge pipe (407), and the crushing assembly (5) includes a crushing box (501), a crusher (502), a third rotary motor (503), a rotary gear (504), a protective shell (505), fixing screws (506), and a discharge bend (507). The discharge pipe (407) is fixedly installed on the top of the crushing box (501) and communicates with its inner cavity. The crushers (502) are rotated in pairs inside the crushing box (501). The crusher (502) is fixedly sleeved with a rotating gear (504) at one end near the protective shell (505). The third rotating motor (503) is fixedly installed on the side wall of the crushing box (501), and its drive shaft is fixedly sleeved with the crusher (502) located on the right side. The protective shell (505) is located at the rear end of the crushing box (501). The fixing screw (506) is located at the four corners of the side wall of the protective shell (505), and its threaded end passes through the protective shell (505) and is threaded into the crushing box (501). The discharge bend (507) is fixedly installed at the lower end of the crushing box (501) and communicates with its inner cavity.
2. The eddy current air classifier for controlling the particle size of silicon micropowder according to claim 1, characterized in that: The housing assembly (1) includes a main housing (101), a secondary housing (102), an air outlet pipe (103), and a first feed hopper (104). The secondary housing (102) is fixedly installed on the main housing (101), the air outlet pipe (103) is fixedly installed on the side wall of the secondary housing (102) and communicates with its inner cavity, and the first feed hopper (104) is fixedly snapped onto the upper end of the secondary housing (102).
3. The eddy current air classifier for controlling the particle size of silicon micropowder according to claim 2, characterized in that: The air intake assembly (2) includes an air intake box (201), a material discharge port (202), a baffle (203), and an air intake pipe (204). The air intake box (201) is fixedly installed below the main body (101). The bottom of the air intake box (201) has a material discharge port (202). The baffle (203) is fixedly installed inside the air intake box (201). The air intake pipe (204) is fixedly installed on the side wall of the air intake box (201) and communicates with its inner cavity.
4. The eddy current air classifier for controlling the particle size of silicon micropowder according to claim 2, characterized in that: The feeding and discharging assembly (3) includes a dust baffle (301), a first rotary motor (302), a transmission rod (303), and a dispersing disc (304). The dust baffle (301) is fixedly installed above the main body (101), the first rotary motor (302) is fixedly installed on the top of the inner wall of the dust baffle (301), the transmission shaft of the first rotary motor (302) is fixedly sleeved on the transmission rod (303), and the dispersing disc (304) is located directly below the first feed hopper (104) and fixedly sleeved on the lower end of the transmission rod (303).
5. The eddy current air classifier for controlling the particle size of silicon micropowder according to claim 4, characterized in that: The material conveying assembly (4) further includes a fixture (401), a conveying pipe (402), a feed pipe (403), a second feed hopper (404), a second rotary motor (405), and a conveying roller (406). The fixture (401) is fixedly installed on the side wall of the dust-blocking box (301). One end of the fixture (401) away from the dust-blocking box (301) is fixedly sleeved onto the outer wall of the conveying pipe (402). The feed pipe (403) is fixedly installed on the side wall of the conveying roller (406). The top left end of the feed pipe (402) is connected to its inner cavity. The second feed hopper (404) is fixedly installed on the feed pipe (403). The conveying roller (406) is arranged in the inner cavity of the conveying pipe (402). The second rotary motor (405) is fixedly installed on the left end of the conveying pipe (402), and its drive shaft is fixedly sleeved on the conveying roller (406). The discharge pipe (407) is fixedly installed on the lower right end of the conveying pipe (402) and connected to its inner cavity.