A particle size regulating device for producing silicon micro-powder

Abstract

The application is suitable for the technical field of silicon powder production, and provides a particle size regulation equipment for silicon powder production, a shell and an airflow classification equipment, a feeding pipe on the shell, and a discharging pipe arranged at the bottom of the shell; a crushing mechanism in the shell, the crushing mechanism comprising a fixed crushing block and a movable crushing piece used in cooperation with the fixed crushing block, a driving unit arranged on the shell and used for driving the movable crushing piece to rotate, a reverse crushing assembly arranged in the fixed crushing block, and a linkage assembly arranged in the movable crushing piece; and a control assembly arranged in the shell, the application avoids the problem that the structure for crushing in the existing particle size regulation equipment for silicon powder production is relatively simple, it is difficult to fully crush larger particles in the silicon powder, the particle size regulation effect is poor, and the silicon powder cannot meet the production requirements through the cooperation of the crushing mechanism and the control assembly.

Description

Technical Field

[0001] This invention relates to the field of silicon micropowder production technology, specifically to a particle size control device for silicon micropowder production. Background Technology

[0002] In modern industrial production, silicon micropowder, as an important inorganic non-metallic material, has a wide range of applications. It possesses many excellent properties such as high melting point, high hardness, high insulation, and stable chemical properties, and is widely used in industries such as electronic packaging materials, high-performance ceramics, rubber, coatings, and building materials.

[0003] With the rapid development of technology across various industries, the requirements for the particle size of silicon micropowder are becoming increasingly stringent. Different application scenarios require vastly different particle size distributions of silicon micropowder. For example, in the field of electronic packaging, to ensure a precise match between the filling effect and material properties, the silicon micropowder particles need to be highly uniform and concentrated within a specific micro-size range to achieve good thermal conductivity, insulation, and other properties. In the field of building materials, when used to enhance the strength of concrete, relatively larger silicon micropowder particles with a certain gradation distribution are needed to optimize its filling and reinforcing effects.

[0004] Currently, most particle size control equipment used in silicon micropowder production has crushing and screening functions. However, the crushing structure in existing particle size control equipment is relatively simple, making it difficult to fully crush larger particles in silicon micropowder, resulting in poor particle size control and making it difficult to ensure that the silicon micropowder meets production requirements. Therefore, there is an urgent need to provide a particle size control equipment for silicon micropowder production to overcome the shortcomings in current practical applications. Summary of the Invention

[0005] The purpose of this invention is to provide a particle size control device for silicon micropowder production, which aims to solve the problems mentioned in the background art.

[0006] This invention is implemented as follows: a particle size control device for silicon micropowder production, comprising:

[0007] A housing and an air classifier, wherein the housing has an inlet pipe and the bottom of the housing has an outlet pipe;

[0008] The crushing mechanism located inside the housing includes a fixed crushing block and a movable crushing component for use in conjunction with the fixed crushing block. The housing is also provided with a drive unit for driving the movable crushing component to rotate. The fixed crushing block is also provided with a reverse crushing component for enhancing the crushing effect, and the movable crushing component is provided with a linkage component for driving the reverse crushing component to work.

[0009] And a control assembly for adjusting the working position of the moving compactor, the control assembly being disposed within the housing.

[0010] As a further aspect of the present invention: the driving unit includes:

[0011] A drive rod is rotatably mounted on the top of the housing, and a motor for driving the drive rod to rotate is also provided on the top of the housing;

[0012] A driven tube is slidably connected to the drive rod, the driven tube rotates with the drive rod, and a pressure spring is provided at the bottom of the drive rod for pressing the driven tube;

[0013] And a baffle rod fixedly installed on the driven pipe, wherein multiple sets of baffle rods are provided.

[0014] As a further aspect of the present invention: the movable compactor comprises:

[0015] Movable compaction block two, which is fixedly installed at the bottom of the driven pipe;

[0016] And a movable rolling block 1 that is slidably connected to the movable rolling block 2, the movable rolling block 1 rotating with the movable rolling block 2, and a connecting belt is provided between the movable rolling block 1 and the movable rolling block 2.

[0017] As a further aspect of the present invention, the cross-section of the fixed compaction block is a triangular structure.

[0018] As a further aspect of the present invention: the gap between the movable compaction block one and the fixed compaction block is a gap of equal width, and the gap between the movable compaction block two and the fixed compaction block gradually decreases from top to bottom.

[0019] As a further aspect of the present invention: the reverse rolling assembly includes:

[0020] A ring-shaped drive block is rotatably installed inside a fixed compaction block. The ring-shaped drive block is located above the movable compaction block. An internal toothed ring that is fixedly connected to the ring-shaped drive block is also rotatably installed inside the fixed compaction block.

[0021] An auxiliary rolling block is rotatably installed inside a fixed rolling block. The auxiliary rolling block is located above the movable rolling block. An external toothed ring, which is fixedly connected to the auxiliary rolling block, is rotatably installed inside the fixed rolling block. The surfaces of the annular drive block and the auxiliary rolling block facing the movable rolling component are flush with the surface of the fixed rolling block facing the movable rolling component.

[0022] A transmission rod is rotatably installed inside a fixed crushing block. Both ends of the transmission rod are fixedly equipped with transmission gears. One transmission gear meshes with an internal gear ring, and the other transmission gear meshes with an external gear ring.

[0023] And interference components disposed on the auxiliary compaction block, wherein multiple sets of interference components are provided.

[0024] As a further aspect of the present invention: the interference component includes:

[0025] Compression chamber three, wherein multiple sets of compression chamber three are opened in the auxiliary rolling block, and each set of compression chamber three is slidably installed with piston three, and spring two is also provided in the compression chamber three for elastic support of piston three;

[0026] A disturbance rod is slidably installed inside the compression chamber three, and the disturbance rod is fixedly connected to the piston three;

[0027] A compression cylinder is fixedly installed on an auxiliary rolling block. The compression cylinder is connected to the compression chamber three through a diversion pipe. A piston two is also slidably installed inside the compression cylinder. A spring one is provided inside the compression cylinder to provide elastic support for the piston two.

[0028] A pressing rod is slidably mounted on the compression cylinder. One end of the pressing rod is fixedly connected to piston two, and magnet two is fixedly mounted on the other end of the pressing rod.

[0029] And a magnet for pushing the magnet to move to one side of the compression cylinder, the magnet being fixedly installed inside the fixed rolling block.

[0030] As a further aspect of the present invention: the linkage component includes:

[0031] A sealing pin is slidably installed in the annular drive block. The annular drive block is also provided with a spring three for elastically pressing the sealing pin, and the annular drive block is provided with a circular hole for the sealing pin to pass through.

[0032] A compression chamber two is located within the movable compaction block one. A linkage pin for pushing the sealing pin to move is slidably installed in the compression chamber two, and a spring four for elastically pulling the linkage pin is provided in the compression chamber two.

[0033] As a further aspect of the present invention: the control component includes:

[0034] An air intake pipe is fixedly installed inside the housing, and an air guide ring is fixedly installed on the air intake pipe, with a cavity inside the air guide ring communicating with the air intake pipe.

[0035] A retaining ring is used to seal the cavity inside the air guide ring, and the retaining ring is rotatably mounted on the top of the air guide ring;

[0036] The air outlet has multiple sets on the air guide ring and is connected to the cavity inside the air guide ring.

[0037] The movable compaction block 2 has a receiving groove at its bottom, the receiving groove being an arc-shaped structure, and the movable compaction block 2 having a receiving cavity connected to the receiving groove. The surface of the movable compaction block 2 has spray holes connected to the receiving cavity.

[0038] As a further aspect of the present invention: the control component further includes:

[0039] A compression chamber 1 is located within a movable compaction block 1. A piston 1 is slidably installed within the compression chamber 1, and a spring 5 is provided within the compression chamber 1 to provide elastic support for the piston 1.

[0040] A drive pin is slidably installed in the movable compaction block. One end of the drive pin is fixedly connected to the piston and the other end is fixedly connected to the retaining ring. The drive pin is connected to the cavity in the air guide ring, and the piston has a through hole that is connected to the drive pin.

[0041] A connecting ring is fixedly installed inside the movable compaction block 1. The connecting ring is slidably connected to the drive pin, and a circular hole communicating with the connecting ring is opened on the side wall of the piston 3.

[0042] And a conduit for connecting the connecting ring and the compression chamber two.

[0043] Compared with the prior art, the beneficial effects of the present invention are as follows: Silicon micropowder is conveyed into the housing through a feed pipe. The silicon micropowder entering the housing slides down the inclined surface at the top of the fixed crushing block between the fixed crushing block and the movable crushing component. The drive unit, by driving the movable crushing component to rotate, can achieve crushing and grinding of the silicon micropowder. By using a linkage component to drive the reverse crushing component to rotate, the silicon micropowder can be kneaded in the opposite direction of the movable crushing component's rotation, further improving the crushing effect. This ensures that large particles in the silicon micropowder are fully crushed. The fully crushed silicon micropowder falls to the bottom of the housing and is discharged through a discharge pipe. An air classifier can be used to screen the silicon micropowder, separating silicon micropowder of different particle sizes to achieve particle size control and meet different application requirements.

[0044] This invention, through the coordinated design of the crushing mechanism and control components, avoids the problem that existing particle size control equipment for silicon micropowder production has a relatively simple crushing structure, which makes it difficult to fully crush larger particles in silicon micropowder, resulting in poor particle size control and difficulty in ensuring that silicon micropowder meets production requirements. Attached Figure Description

[0045] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0046] Figure 1This is a schematic diagram of the structure of the present invention.

[0047] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0048] Figure 3 This is a cross-sectional view of the crushing mechanism in this invention.

[0049] Figure 4 for Figure 3 A cross-sectional structural diagram of a moving compactor.

[0050] Figure 5 for Figure 4 A cross-sectional view of the central guide ring.

[0051] Figure 6 This is a cross-sectional view of the fixed compaction block in this invention.

[0052] Figure 7 This is a schematic diagram of the movable rolling element in this invention.

[0053] Figure 8 for Figure 7 A schematic diagram of the structure viewed from below.

[0054] Figure 9 This is a schematic diagram of the interference component in this invention.

[0055] Figure 10 This is a schematic diagram of the linkage component in this invention.

[0056] Figure 11 This is a cross-sectional view of the retaining ring in this invention.

[0057] In the attached diagram: 1-Shell, 2-Feed pipe, 3-Motor, 4-Air inlet pipe, 5-Discharge pipe, 6-Movable crushing block one, 7-Fixed crushing block, 8-Piston one, 9-Drive rod, 10-Driven pipe, 11-Break rod, 12-Movable crushing block two, 13-Connecting belt, 14-Magnet one, 15-Auxiliary crushing block, 16-External toothed ring, 17-Annular drive block, 18-Pressing rod, 19-Magnet two, 20-Blocking ring, 21-Air guide ring, 22-Receiving groove 23-Diverter pipe, 24-Compression cylinder, 25-Drive rod, 26-Drive gear, 27-Internal gear ring, 28-Linking pin, 29-Conduit, 30-Drive pin, 31-Outlet, 32-Compression chamber one, 33-Compression chamber two, 34-Blocking pin, 35-Disturbance rod, 36-Piston two, 37-Spring one, 38-Compression chamber three, 39-Piston three, 40-Spring two, 41-Spring three, 42-Spring four, 43-Spring five, 44-Connecting ring. Detailed Implementation

[0058] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0060] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] The present invention will be further explained below with reference to specific embodiments.

[0062] Please see Figures 1-11 This invention provides a particle size control device for silicon micropowder production, the particle size control device for silicon micropowder production includes:

[0063] The housing 1 and the air classifier are provided. The housing 1 has a feed pipe 2 and a discharge pipe 5 at its bottom. The discharge pipe 5 is used to introduce the fully crushed silicon micropowder into the air classifier. The air classifier is a publicly available technology, and the air classifier can be selected as a gravity type, centrifugal type, or inertial type air classifier according to actual usage requirements. Furthermore, the working principle is as follows:

[0064] Gravity-type airflow classifier: When particles are in the airflow, they are affected by both gravity and airflow drag. Larger, heavier particles are more affected by gravity and fall faster, accumulating near the bottom of the classifier or in the gravity settling area. Smaller, lighter particles are more affected by airflow drag and remain in the airflow for a longer time, moving upwards or in other directions with the airflow, thus achieving initial separation of large and small particles. Centrifugal airflow classifier: In a centrifugal airflow classifier, the airflow carries particles into the classification rotor area for classification. The high-speed rotation of the rotor generates a strong centrifugal force. Under this force, larger particles are thrown to the outside of the classifying rotor, while smaller particles, experiencing less centrifugal force, move towards the center of the rotor under the influence of the airflow. By adjusting the rotational speed of the classifying rotor, the magnitude of the centrifugal force can be changed, thus achieving the separation of particles of different sizes. Inertial airflow classifiers utilize the difference in inertia of particles moving in the airflow for classification. When the airflow encounters an obstacle or the channel suddenly changes direction in the classifying equipment, the particles continue to move in their original direction due to inertia. Larger particles have greater inertia and are less likely to follow the airflow change direction, colliding with obstacles or deviating from the airflow direction and being separated. Smaller particles have less inertia and can follow the airflow change direction better, thus achieving the separation of particles of different sizes.

[0065] The crushing mechanism located inside the housing 1 includes a fixed crushing block 7 and a movable crushing component for use in conjunction with the fixed crushing block 7. The housing 1 is also provided with a drive unit for driving the movable crushing component to rotate. The fixed crushing block 7 is also provided with a reverse crushing component for enhancing the crushing effect, and the movable crushing component is provided with a linkage component for working with the reverse crushing component.

[0066] And a control component for adjusting the working position of the moving compactor, the control component being disposed within the housing 1.

[0067] In an embodiment of the present invention, during use, silicon micropowder is conveyed into the housing 1 through the feed pipe 2. The silicon micropowder entering the housing 1 slides down the inclined surface at the top of the fixed crushing block 7 between the fixed crushing block 7 and the movable crushing component. The drive unit can crush the silicon micropowder by driving the movable crushing component to rotate. By using the linkage component to drive the reverse crushing component to rotate, the silicon micropowder can be kneaded in the opposite direction of the rotation of the movable crushing component, further improving the crushing effect and making the large particles in the silicon micropowder fully crushed. The fully crushed silicon micropowder falls to the bottom of the housing 1 and is discharged through the discharge pipe 5. The silicon micropowder can be screened by the air classifier, which can separate silicon micropowder of different particle sizes, achieve particle size control effect, and facilitate meeting different usage requirements. Compared with the prior art, the present invention avoids the problem that the crushing structure in the existing silicon micropowder production particle size control equipment is relatively simple, which makes it difficult to fully crush the larger particles in the silicon micropowder, resulting in poor particle size control effect and difficulty in making the silicon micropowder meet the production requirements.

[0068] In one embodiment of the present invention, please refer to Figures 1-11 The driving unit includes:

[0069] A drive rod 9 is rotatably installed at the top of the housing 1. The top of the housing 1 is also provided with a motor 3 for driving the drive rod 9 to rotate.

[0070] A driven tube 10 is slidably connected to the drive rod 9. The driven tube 10 rotates with the drive rod 9, and a pressure spring for pressing the driven tube 10 is provided at the bottom of the drive rod 9.

[0071] And a baffle rod 11 fixedly installed on the driven pipe 10, wherein multiple sets of baffle rods 11 are provided;

[0072] The movable compactor includes:

[0073] Movable compaction block 2 12, which is fixedly installed at the bottom of driven pipe 10;

[0074] And a movable rolling block 6 that is slidably connected to the movable rolling block 2 12, the movable rolling block 6 rotating with the movable rolling block 2 12, and a connecting belt 13 is provided between the movable rolling block 6 and the movable rolling block 2 12; wherein the connecting belt 13 is made of a stretchable material.

[0075] The fixed compaction block 7 has a triangular cross-section;

[0076] The gap between the movable grinding block 6 and the fixed grinding block 7 is of equal width. When the movable grinding block 6 moves upward, it can fit into the fixed grinding block 7, achieving a sealing effect and extending the grinding time of the movable grinding block 12 on the silicon micro powder. The gap between the movable grinding block 12 and the fixed grinding block 7 gradually decreases from top to bottom.

[0077] In this embodiment, the motor 3 drives the drive rod 9 to rotate, which in turn drives the driven tube 10 to rotate. The driven tube 10 then drives the movable crushing block 2 12 to rotate, which in turn drives the movable crushing block 1 6 to rotate synchronously. The driven tube 10 drives the baffle rod 11 to rotate, which in turn stirs the silicon powder accumulated on the top of the movable crushing block 2 12, preventing blockage.

[0078] In one embodiment of the present invention, please refer to Figures 1-11 The reverse rolling component includes:

[0079] A ring drive block 17 is rotatably installed inside the fixed rolling block 7. The ring drive block 17 is located above the movable rolling block 6. An internal toothed ring 27 that is fixedly connected to the ring drive block 17 is also rotatably installed inside the fixed rolling block 7.

[0080] An auxiliary rolling block 15 is rotatably installed inside the fixed rolling block 7. The auxiliary rolling block 15 is located above the movable rolling block 12, and an external toothed ring 16 fixedly connected to the auxiliary rolling block 15 is rotatably installed inside the fixed rolling block 7. The surfaces of the annular drive block 17 and the auxiliary rolling block 15 facing the movable rolling component are flush with the surface of the fixed rolling block 7 facing the movable rolling component.

[0081] A transmission rod 25 is rotatably installed inside the fixed crushing block 7. Both ends of the transmission rod 25 are fixedly installed with transmission gears 26. One transmission gear 26 meshes with an internal gear ring 27, and the other transmission gear 26 meshes with an external gear ring 16.

[0082] And interference components are provided on the auxiliary compaction block 15, and multiple sets of interference components are provided;

[0083] The interference component includes:

[0084] Compression chamber 38, wherein multiple sets of compression chamber 38 are provided in the auxiliary rolling block 15, and each set of compression chamber 38 has a piston 39 slidably installed in it. A spring 2 40 for elastically supporting the piston 39 is also provided in the compression chamber 38.

[0085] A disturbance rod 35 is slidably installed in the compression chamber 38, and the disturbance rod 35 is fixedly connected to the piston 39;

[0086] A compression cylinder 24 is fixedly installed on the auxiliary compaction block 15. The compression cylinder 24 is connected to the compression chamber 38 through a diversion pipe 23. A piston 26 is also slidably installed inside the compression cylinder 24. A spring 1 37 is provided inside the compression cylinder 24 to provide elastic support for the piston 26. When in use, the compression cylinder 24 is pre-filled with gas.

[0087] A pressing rod 18 is slidably mounted on the compression cylinder 24. One end of the pressing rod 18 is fixedly connected to the piston 36, and the other end of the pressing rod 18 is fixedly mounted with a magnet 19.

[0088] And a magnet 14 for pushing magnet 219 toward the compression cylinder 24, wherein magnet 14 is fixedly installed in the fixed rolling block 7; wherein magnet 14 and magnet 219 are arranged with their magnetic poles facing each other.

[0089] The linkage component includes:

[0090] A sealing pin 34 is slidably installed in the annular drive block 17. The annular drive block 17 is also provided with a spring 3 41 for elastically pressing the sealing pin 34, and the annular drive block 17 is provided with a circular hole for the sealing pin 34 to pass through.

[0091] A compression chamber 2 33 is opened in the movable compaction block 1 6. A linkage pin 28 for pushing the sealing pin 34 to move is slidably installed in the compression chamber 2 33, and a spring 42 for elastically pulling the linkage pin 28 is provided in the compression chamber 2 33; wherein the sealing pin 34 and the linkage pin 28 are both T-shaped structures.

[0092] The control component includes:

[0093] An air inlet pipe 4 is fixedly installed inside the housing 1. An air guide ring 21 is fixedly installed on the air inlet pipe 4, and the air guide ring 21 has a cavity that communicates with the air inlet pipe 4. The air guide ring 21 can support the movable crushing block 6, and the air guide ring 21 and the movable crushing block 6 can slide relative to each other. The movable crushing block 6 can rotate on the air guide ring 21.

[0094] A retaining ring 20 is used to seal the cavity inside the air guide ring 21, and the retaining ring 20 is rotatably mounted on the top of the air guide ring 21;

[0095] Air outlet 31, multiple sets of air outlet 31 are provided on air guide ring 21, and air outlet 31 is connected to the cavity inside air guide ring 21.

[0096] And a receiving groove 22 is opened at the bottom of the movable rolling block 2 12. The receiving groove 22 has an arc-shaped structure, and the movable rolling block 2 12 has a receiving cavity that communicates with the receiving groove 22. The surface of the movable rolling block 2 12 is provided with spray holes that communicate with the receiving cavity.

[0097] The control component also includes:

[0098] A compression chamber 32 is provided inside the movable compaction block 6. A piston 8 is slidably installed in the compression chamber 32, and a spring 43 is provided in the compression chamber 32 to provide elastic support for the piston 8.

[0099] A drive pin 30 is slidably installed in the movable compaction block 6. One end of the drive pin 30 is fixedly connected to the piston 8, and the other end of the drive pin 30 is fixedly connected to the retaining ring 20. The drive pin 30 is connected to the cavity in the air guide ring 21, and the piston 8 is provided with a through hole that is connected to the drive pin 30.

[0100] A connecting ring 44 is fixedly installed inside the movable compaction block 6. The connecting ring 44 is slidably connected to the drive pin 30, and a circular hole communicating with the connecting ring 44 is opened on the side wall of the piston 39.

[0101] And conduit 29, which is used for communication between the connecting ring 44 and the compression chamber 33.

[0102] In this embodiment, during use, the air inlet pipe 4 is connected to an external air source. When it is necessary to adjust the working position of the movable crushing block 2 12 and the movable crushing block 1 6, the air inlet pipe 4 is used to deliver gas to the air guide ring 21. The gas can enter the compression chamber 1 32 and the connecting ring 44 through the drive pin 30. The gas entering the compression chamber 1 32 can cause relative movement between the piston 1 8 and the compression chamber 1 32, so that the movable crushing block 1 6 can press against the fixed crushing block 7. At this time, the movable crushing block 1 6 and the movable crushing block 2 12 are in contact. The connecting strip 13 prevents silicon powder from entering the gap between the movable compaction block 12 and the movable compaction block 6. Simultaneously, gas enters the compression chamber 33 through the conduit 29, pushing the linkage pin 28 upwards. When the linkage pin 28 rotates to the position corresponding to the sealing pin 34, it pushes the sealing pin 34 upwards. The linkage pin 28 enters the hole for installing the sealing pin 34, allowing the annular drive block 17 to rotate with the movable compaction block 12. This, in conjunction with the internal gear ring 27, transmission gear 26, and transmission rod 25, allows for... The transmission action of the external toothed ring 16 causes the auxiliary crushing block 15 to rotate, and the rotation direction of the auxiliary crushing block 15 is opposite to that of the movable crushing block 12. This allows the auxiliary crushing block 15 to perform reverse kneading of the silica powder on the movable crushing block 12, further improving the crushing effect. During the rotation of the annular drive block 17, the magnet 19 intermittently passes under the magnet 14. Each time it passes, the magnet 14 pushes the magnet 19 downward, causing the pressing rod 18 to drive the piston 36 to press the gas in the compression cylinder 24 into the cylinder. The gas is delivered to the diversion pipe 23 and then to the compression chamber 38 through the diversion pipe 23. This pushes the piston 39 downward, causing the piston 39 to drive the disturbance rod 35 to press against the movable crushing block 2 12. This achieves turbulence treatment of the silicon powder and avoids the problem that the silicon powder is flattened between the movable crushing block 2 12 and the fixed crushing block 7, which affects the flowability and thus the crushing effect. When the magnet 2 19 passes under the magnet 1 14, the spring 2 40 and the spring 1 37 can push the piston 39 and the piston 2 36 to reset respectively.

[0103] By using the pressing action of the drive rod 9 on the driven tube 10, the annular drive block 17 is pressed onto the air guide ring 21. When the receiving groove 22 is connected to the air outlet 31, the gas ejected from the air outlet 31 will be collected by the receiving cavity in the movable crushing block 2 12, and some of the gas can be ejected through the nozzle on the surface of the movable crushing block 2 12, further improving the turbulence effect. When the receiving groove 22 is misaligned with the air outlet 31, the gas ejected from the air outlet 31 will push the movable crushing block 2 12 upward, so that the movable crushing block 2 12 can move up and down intermittently during rotation, realizing the impact on the silicon powder between the fixed crushing block 7 and the movable crushing block 2 12, further improving the crushing effect.

[0104] By intermittently introducing gas into the air intake pipe 4 through the air guide ring 21, the working status of the movable compaction block 2 12, the movable compaction block 1 6, the linkage assembly, and the reverse compaction assembly can be continuously adjusted, thereby further improving the processing quality.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A particle size control device for silicon micropowder production, comprising a shell and an air classifier, wherein a feed pipe is provided on the shell, and a discharge pipe is provided at the bottom of the shell, characterized in that, Also includes: The crushing mechanism located inside the housing includes a fixed crushing block and a movable crushing component for use in conjunction with the fixed crushing block. The housing is also provided with a drive unit for driving the movable crushing component to rotate. The fixed crushing block is also provided with a reverse crushing component for enhancing the crushing effect, and the movable crushing component is provided with a linkage component for driving the reverse crushing component to work. And a control assembly for adjusting the working position of the moving compactor, the control assembly being disposed within the housing; The driving unit includes: A drive rod is rotatably mounted on the top of the housing, and a motor for driving the drive rod to rotate is also provided on the top of the housing; A driven tube is slidably connected to the drive rod, the driven tube rotates with the drive rod, and a pressure spring is provided at the bottom of the drive rod for pressing the driven tube; And a baffle rod fixedly installed on the driven tube, wherein multiple sets of the baffle rod are provided; The movable compactor includes: Movable compaction block two, which is fixedly installed at the bottom of the driven pipe; And a movable rolling block 1 that is slidably connected to the movable rolling block 2, the movable rolling block 1 rotating with the movable rolling block 2, and a connecting belt is provided between the movable rolling block 1 and the movable rolling block 2; The reverse rolling component includes: A ring-shaped drive block is rotatably installed inside a fixed compaction block. The ring-shaped drive block is located above the movable compaction block. An internal toothed ring that is fixedly connected to the ring-shaped drive block is also rotatably installed inside the fixed compaction block. An auxiliary rolling block is rotatably installed inside a fixed rolling block. The auxiliary rolling block is located above the movable rolling block. An external toothed ring, which is fixedly connected to the auxiliary rolling block, is rotatably installed inside the fixed rolling block. The surfaces of the annular drive block and the auxiliary rolling block facing the movable rolling component are flush with the surface of the fixed rolling block facing the movable rolling component. A transmission rod is rotatably installed inside a fixed crushing block. Both ends of the transmission rod are fixedly equipped with transmission gears. One transmission gear meshes with an internal gear ring, and the other transmission gear meshes with an external gear ring. And interference components disposed on the auxiliary compaction block, wherein multiple sets of interference components are provided; The interference component includes: Compression chamber three, wherein multiple sets of compression chamber three are opened in the auxiliary rolling block, and each set of compression chamber three is slidably installed with piston three, and spring two is also provided in the compression chamber three for elastic support of piston three; A disturbance rod is slidably installed inside the compression chamber three, and the disturbance rod is fixedly connected to the piston three; A compression cylinder is fixedly installed on an auxiliary rolling block. The compression cylinder is connected to the compression chamber three through a diversion pipe. A piston two is also slidably installed inside the compression cylinder. A spring one is provided inside the compression cylinder to provide elastic support for the piston two. A pressing rod is slidably mounted on the compression cylinder. One end of the pressing rod is fixedly connected to piston two, and magnet two is fixedly mounted on the other end of the pressing rod. And a magnet for pushing the magnet to move to one side of the compression cylinder, the magnet being fixedly installed inside the fixed rolling block.

2. The particle size control equipment for silicon micropowder production according to claim 1, characterized in that, The fixed compaction block has a triangular cross-section.

3. The particle size control equipment for silicon micropowder production according to claim 1, characterized in that, The gap between the movable compaction block one and the fixed compaction block is of equal width, and the gap between the movable compaction block two and the fixed compaction block gradually decreases from top to bottom.

4. The particle size control equipment for silicon micropowder production according to claim 1, characterized in that, The linkage component includes: A sealing pin is slidably installed in the annular drive block. The annular drive block is also provided with a spring three for elastically pressing the sealing pin, and the annular drive block is provided with a circular hole for the sealing pin to pass through. A compression chamber two is located within the movable compaction block one. A linkage pin for pushing the sealing pin to move is slidably installed in the compression chamber two, and a spring four for elastically pulling the linkage pin is provided in the compression chamber two.

5. The particle size control equipment for silicon micropowder production according to claim 4, characterized in that, The control component includes: An air intake pipe is fixedly installed inside the housing, and an air guide ring is fixedly installed on the air intake pipe, with a cavity inside the air guide ring communicating with the air intake pipe. A retaining ring is used to seal the cavity inside the air guide ring, and the retaining ring is rotatably mounted on the top of the air guide ring; The air outlet has multiple sets on the air guide ring and is connected to the cavity inside the air guide ring. The movable compaction block 2 has a receiving groove at its bottom, the receiving groove being an arc-shaped structure, and the movable compaction block 2 having a receiving cavity communicating with the receiving groove. The surface of the movable compaction block 2 has spray holes communicating with the receiving cavity.

6. The particle size control equipment for silicon micropowder production according to claim 5, characterized in that, The control component also includes: A compression chamber 1 is located within a movable compaction block 1. A piston 1 is slidably installed within the compression chamber 1, and a spring 5 is provided within the compression chamber 1 to provide elastic support for the piston 1. A drive pin is slidably installed in the movable compaction block. One end of the drive pin is fixedly connected to the piston and the other end is fixedly connected to the retaining ring. The drive pin is connected to the cavity in the air guide ring, and the piston is provided with a through hole that is connected to the drive pin. A connecting ring is fixedly installed inside the movable compaction block 1. The connecting ring is slidably connected to the drive pin, and a circular hole communicating with the connecting ring is opened on the side wall of the piston 3. And a conduit for connecting the connecting ring and the compression chamber two.

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