Automatic feeding device for silica powder production

Abstract

The invention discloses an automatic feeding device for silica powder production, and relates to the field of silica powder production equipment.The automatic feeding device comprises a feeding mechanism, a pipeline of the feeding mechanism is communicated with a gas injection mechanism, and the other end of the gas injection mechanism is communicated with a gas supply mechanism; the feeding mechanism comprises a vertically-arranged conveying pipeline and a screw rod rotationally installed in the conveying pipeline. The first gas injection pipe and the second gas injection pipe of the gas injection mechanism are matched with the vertically staggered and symmetrical connecting pipelines, gas enters from the two sides of the conveying pipeline at different heights, the contact range of the gas and silica powder is enlarged, a guide cylinder shakes in a conical route under the action of a servo motor, a bending rod, a rocker and a supporting frame, the gas flow direction is dynamically changed, and the gas injection efficiency is improved. Local accumulation of the silica powder caused by fixed airflow direction is avoided, blowing and auxiliary conveying effects of gas on the silica powder are enhanced, conveying resistance of the screw rod is reduced, and blockage of a conveying pipeline is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of silicon micropowder production equipment, in particular to an automatic feeding device for silicon micropowder production. Background Art

[0002] As an important industrial raw material, silicon micropowder needs to be transported to subsequent processing equipment through a feeding device during the production process. Currently, the most common silicon micropowder feeding devices mostly use spiral conveying.

[0003] For example, the "Raw Material Loading Machine for Spherical Silicon Micropowder Processing" with publication number CN112249710A includes a suction hose and a silicon micropowder processing device. A mounting shell is fixedly installed at the feeding port of the silicon micropowder processing device, and a pneumatic feeder is fixedly installed inside the mounting shell. A discharge pipe extending into the silicon micropowder processing device is fixedly installed at the output end of the pneumatic feeder, and a material spreading hood is fixedly installed at the end of the discharge pipe, and a suction hose is fixedly installed at the end of the mounting seat.

[0004] However, in the existing technology, silicon micropowder is very susceptible to the influence of environmental humidity and static electricity due to its small particle size (especially ultrafine silicon micropowder, whose particle size is often less than 10 microns), large specific surface area and high surface energy. When the environmental humidity is high, the surface of the silicon micropowder particles will adsorb water molecules in the air to form a water film. The water molecules attract adjacent particles to each other through hydrogen bonds, and gradually gather to form agglomerates. If the humidity continues to be high, the agglomerates will further combine to form harder agglomerates. At the same time, during the production and transportation of silicon micropowder, the friction between particles and between particles and the inner wall of equipment (hoppers, screw conveyors, pipelines) will generate static electricity. Since silicon micropowder itself is mostly insulating or semi-insulating material, the charge is difficult to release, resulting in particles with the same charge on the surface of the particles attracting each other due to electrostatic adsorption, aggravating the agglomeration phenomenon and forming larger agglomerated particles. When these agglomerates or agglomerates pass through the hopper, the space in the cone of the hopper gradually shrinks, and the agglomerates tend to accumulate in the corners. When they accumulate to a certain extent, they will form "bridges". The phenomenon is that the discharge port is blocked. In the screw conveyor, there is a certain gap between the spiral blades and the casing. Agglomerates or lumps will be stuck in the gap. As the screw rotates, they are continuously compacted, resulting in obstruction of transportation or even shutdown. At the elbow of the pipe, the direction of material flow suddenly changes and the flow rate decreases. Agglomerates or lumps are more likely to collide with and be retained on the inside of the elbow due to inertia. After gradual accumulation, the cross-sectional area of ​​the pipe is reduced, and eventually blockage occurs. Summary of the Invention

[0005] The object of the present invention is to provide an automatic feeding device for silicon micropowder production, so as to solve the problems of easy pipe blockage and uneven transportation of silicon micropowder feeding devices proposed in the above background art.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an automated feeding device for silicon micropowder production, comprising a feeding mechanism, a pipe of the feeding mechanism being connected to an air injection mechanism, the other end of the air injection mechanism being connected to an air supply mechanism, the feeding mechanism comprising a vertically arranged conveying pipe and a screw rotatably installed therein, a motor and a belt drive assembly being fixedly installed on the top of the conveying pipe, the motor and belt drive assembly being fixedly connected to the screw, and one side of the bottom of the conveying pipe being connected to a supply box; The gas injection mechanism includes a first gas injection pipe and a second gas injection pipe, the second gas injection pipe is connected to one side of the first gas injection pipe, and the ends of the first gas injection pipe and the second gas injection pipe are fixedly connected to each other with connecting pipes, and the connecting pipes are symmetrically distributed on both sides of the conveying pipe in an upper and lower staggered manner; A guide cylinder is provided on the inner side of the connecting pipe, and the bottom of the guide cylinder is fixedly connected to a support frame, and a connecting rod is fixedly connected to one side of the support frame. The connecting rod is located on the axis of the guide cylinder, and the other end of the connecting rod is fixedly connected to a bending rod. The connecting rod is perpendicular to the end of the bending rod, and the connecting rod is located on the axis of the guide cylinder. A servo motor is also provided on the inner side of the connecting pipe, and the output end of the servo motor is fixedly connected to one end of the bending rod. The servo motor drives the connecting rod through the bending rod, so that the guide cylinder shakes in a conical path to change the flow direction of the air.

[0007] Preferably, a partition frame is fixedly installed at the junction of the connecting pipe and the conveying pipe, and one side of the partition frame is detachably connected to a limiting ring by bolts. The partition frame is located between the limiting ring and the conveying pipe, and through holes are provided inside the partition frame and the limiting ring.

[0008] Preferably, a spherical connector is fixedly installed on one side of the limiting ring, one end of the spherical connector is fixedly connected to the support frame, a positioning bracket is fixedly installed on the inner wall of the connecting pipe, and the junction of the bending rod and the servo motor is rotatably installed inside the positioning bracket.

[0009] Preferably, the middle section of the conveying pipe is connected to a discharge pipe, the discharge pipe is located at the end of the spiral blade, the discharge pipe is located above the two connecting pipes, the discharge pipe is inclined downward, the connecting pipe is inclined upward, and the discharge pipe is perpendicular to the connecting pipe.

[0010] Preferably, the air supply mechanism includes a hollow base and a connecting cylinder, the connecting cylinder is fixedly installed on the top of the hollow base and the hollow base is connected to the connecting cylinder, a crank rocker mechanism is rotatably installed inside the hollow base, and the transmission rod of the crank rocker mechanism is connected to the external power mechanism.

[0011] Preferably, one end of the crank rocker mechanism rocker is rotatably connected to a piston, the piston is slidably arranged inside the connecting cylinder, the connecting cylinder is connected to the first air injection pipe, and the piston is located below the intersection of the connecting cylinder and the hollow base.

[0012] Preferably, a blocking block is symmetrically fixed on the top of the connecting tube, and the blocking block is used for air intake. When the blocking block moves downward, external air is extracted through the blocking block. When the blocking block moves upward, the blocking block blocks the connecting tube and the air is pressed into the first air injection pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the screw rod of the feeding mechanism cooperates with the motor and the belt transmission assembly to realize the automatic vertical transportation of silicon micropowder, thereby improving the loading efficiency. The feeding box ensures the continuous supply of raw materials. The first gas injection pipe and the second gas injection pipe of the gas injection mechanism cooperate with the connecting pipes that are symmetrically staggered up and down, so that the gas enters from different heights on both sides of the conveying pipeline, thereby expanding the contact range with the silicon micropowder. The guide cylinder is shaken in a conical path under the action of the servo motor, bending rod, rocker and support frame, dynamically changing the gas flow direction, avoiding local accumulation of silicon micropowder caused by fixed airflow direction, enhancing the gas blowing and auxiliary transportation effect on silicon micropowder, reducing the resistance during screw rod transportation, and preventing blockage of the conveying pipeline. At the same time, the gas flow can reduce the adhesion between silicon micropowders, thereby ensuring the uniformity of transportation.

[0014] 2. In the present invention, the positioning bracket fixed on the inner wall of the connecting pipe plays a role of rotational support for the junction of the bending rod and the servo motor, ensuring stable transmission of the bending rod. The discharge pipe connected to the middle section of the conveying pipe is located at the end of the spiral rod blade and above the two connecting pipes. Its downward inclined setting is perpendicular to the upward inclined connecting pipe, so that the silicon micropowder conveyed by the spiral rod and assisted by the gas injection mechanism can be smoothly discharged here. The detachable connection between the partition frame and the limit ring facilitates later maintenance and through-hole cleaning, ensuring smooth airflow channel. The through-hole design of the two does not hinder the airflow and can form a certain barrier to the silicon micropowder, reducing reverse material leakage.

[0015] 3. In the present invention, the blocking block symmetrically fixed on the top of the connecting tube is used for air intake. When the blocking block moves downward, external air will be drawn into the connecting tube. When the blocking block moves upward, the blocking block will block the connecting tube, so that the internal air will be pressed into the first air injection pipe, thereby providing a continuous air source for the air injection mechanism. The hollow base provides a stable installation space for the crank rocker mechanism to ensure its stable rotation. The connection design between the connecting tube and the hollow base ensures the integrity of the gas circulation channel. The crank rocker mechanism converts the power of the external power mechanism into the reciprocating sliding power of the piston, realizes the mechanical transmission of gas intake and discharge, and improves the degree of automation of the air supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an automatic feeding device for producing silicon micropowder according to the present invention; Figure 2 This is a schematic diagram of the internal structure of the air supply mechanism of an automatic feeding device for silicon micropowder production according to the present invention; Figure 3 This is a schematic diagram of the disassembled structure of the feeding mechanism of an automatic feeding device for silicon micropowder production according to the present invention; Figure 4 This is a schematic plan view of the feeding mechanism and gas injection mechanism of an automatic feeding device for silicon micropowder production according to the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the first and second gas injection pipes of an automatic feeding device for silicon micropowder production according to the present invention; Figure 6 This is a schematic diagram of the internal structure of the second gas injection pipe of an automatic feeding device for silicon micropowder production according to the present invention; Figure 7 This is a schematic diagram of the planar structure of a guide cylinder of an automatic feeding device for silicon micropowder production according to the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of a guide cylinder and a spherical connector of an automatic feeding device for silicon micropowder production according to the present invention.

[0017] In the figure: 1. Feeding mechanism; 2. Gas injection mechanism; 3. Gas supply mechanism; 4. Feed box; 11. Conveying pipeline; 12. Motor and belt drive assembly; 13. Discharge pipeline; 14. Screw rod; 21. First gas injection pipe; 22. Second gas injection pipe; 23. Connecting pipeline; 24. Positioning bracket; 25. Servo motor; 26. Guide cylinder; 27. Support frame; 28. Connecting rod; 29. ​​Bending rod; 210. Partition frame; 211. Limiting ring; 212. Spherical connector; 31. Hollow base; 32. Connecting cylinder; 33. Crank rocker mechanism; 34. Piston; 35. Sealing block. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] Example 1: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown: An automatic feeding device for silicon micropowder production, including a feeding mechanism 1, a gas injection mechanism 2 is connected to the pipeline of the feeding mechanism 1, and the other end of the gas injection mechanism 2 is connected to the gas supply mechanism 3, the feeding mechanism 1 includes a vertically arranged conveying pipeline 11 and a screw rod 14 rotatably installed inside it, a motor and a belt transmission assembly 12 is fixedly installed on the top of the conveying pipeline 11, the motor and the belt transmission assembly 12 are fixedly connected to the screw rod 14, one side of the bottom of the conveying pipeline 11 is connected to the feeding box 4, the gas injection mechanism 2 includes a first gas injection pipe 21 and a second gas injection pipe 22, the second gas injection pipe 22 is connected to one side of the first gas injection pipe 21, the end of the first gas injection pipe 21 and the end of the second gas injection pipe 22 are fixedly connected to a connecting pipe 23, connecting The pipes 23 are symmetrically distributed on both sides of the conveying pipe 11 in an upper and lower staggered manner. A guide cylinder 26 is provided on the inner side of the connecting pipe 23. The bottom of the guide cylinder 26 is fixedly connected to a support frame 27. A connecting rod 28 is fixedly connected to one side of the support frame 27. The connecting rod 28 is located on the axis of the guide cylinder 26. The other end of the connecting rod 28 is fixedly connected to a bending rod 29. The connecting rod 28 is perpendicular to the end of the bending rod 29. The connecting rod 28 is located on the axis of the guide cylinder 26. A servo motor 25 is also provided on the inner side of the connecting pipe 23. The output end of the servo motor 25 is fixedly connected to one end of the bending rod 29. The servo motor 25 drives the connecting rod 28 through the bending rod 29, so that the guide cylinder 26 shakes in a conical path to change the flow direction of the air.

[0020] In this embodiment, the feeding mechanism 1 serves as the core conveying component. The screw rod 14 in the vertically arranged conveying pipe 11 rotates under the drive of the top motor and the belt transmission assembly 12, and conveys the silicon micropowder in the supply box 4 connected to the bottom side upward. At the same time, the gas provided by the air supply mechanism 3 enters the conveying pipe 11 through the air injection mechanism 2. The first air injection pipe 21 and the second air injection pipe 22 of the air injection mechanism 2 separate the gas and send it into the conveying pipe 11 through the connecting pipe 23 at the end. The connecting pipe 23 is symmetrically distributed on both sides of the conveying pipe 11 in an up-down staggered manner to ensure that the gas can enter from different positions. When the servo motor 25 inside the connecting pipe 23 is working, its output end drives the bending rod 29 to rotate. Because the bending rod 29 is perpendicular to the end of the connecting rod 28 and the connecting rod 28 is located on the axis of the guide cylinder 26, the connecting rod 28 drives the guide cylinder 26 to shake in a conical path, and the guide cylinder 26 is stabilized by the support frame 27 fixed at the bottom. The air flow direction is changed during the shaking process, allowing the gas to enter the conveying pipe 11 at a dynamically changing angle and interact with the screw rod 1 4. The spiral rod 14 of the feeding mechanism 1 cooperates with the motor and belt drive assembly 12 to realize automatic vertical transportation of silicon micropowder, improving feeding efficiency. The feed box 4 ensures a continuous supply of raw materials. The first gas injection pipe 21 and the second gas injection pipe 22 of the gas injection mechanism 2 cooperate with the connecting pipe 23 that is staggered and symmetrical in an upper and lower manner, so that gas enters from different heights on both sides of the conveying pipe 11, expanding the contact range with the silicon micropowder. The guide cylinder 26 swings in a conical path under the action of the servo motor 25, the bending rod 29, the connecting rod 28 and the support frame 27, dynamically changing the gas flow direction, avoiding local accumulation of silicon micropowder caused by fixed airflow direction, enhancing the gas blowing and auxiliary transportation effect of silicon micropowder, reducing the resistance of the spiral rod 14 during transportation, and preventing blockage of the conveying pipe 11. At the same time, the gas flow can reduce the adhesion between silicon micropowders, ensuring uniform transportation. The gas supply mechanism 3 provides a stable gas source for the gas injection mechanism 2, ensuring stable gas-assisted transportation effect. All components work together to achieve efficient, stable and automatic feeding of silicon micropowder, improving production continuity and reliability.

[0021] Example 2: According to Figure 4 、 Figure 6 、 Figure 7 and Figure 8As shown, a partition frame 210 is fixedly installed at the junction of the connecting pipe 23 and the conveying pipe 11, and one side of the partition frame 210 is detachably connected to the limiting ring 211 by bolts. The partition frame 210 is located between the limiting ring 211 and the conveying pipe 11, and through holes are provided in the interior of the partition frame 210 and the interior of the limiting ring 211. A spherical connector 212 is fixedly installed on one side of the limiting ring 211, and one end of the spherical connector 212 is fixedly connected to the support frame 27. A positioning bracket 24 is fixedly installed on the inner wall of the connecting pipe 23, and the junction of the bending rod 29 and the servo motor 25 is rotatably installed inside the positioning bracket 24. The middle section of the conveying pipe 11 is connected to the discharge pipe 13, and the discharge pipe 13 is located at the end of the blade of the spiral rod 14. The discharge pipe 13 is located above the two connecting pipes 23, the discharge pipe 13 is inclined downward, and the connecting pipe 23 is inclined upward, and the discharge pipe 13 is perpendicular to the connecting pipe 23.

[0022] The spherical connector 212 fixedly mounted on one side of the limiting ring 211 is fixedly connected to the support frame 27 to provide auxiliary support and limit for the rocking of the guide cylinder 26. The positioning bracket 24 fixed on the inner wall of the connecting pipe 23 plays a role of rotational support for the junction of the bending rod 29 and the servo motor 25, ensuring the stable transmission of the bending rod 29. The discharge pipe 13 connected to the middle section of the conveying pipe 11 is located at the end of the blade of the screw rod 14 and above the two connecting pipes 23. Its downwardly inclined setting is perpendicular to the upwardly inclined connecting pipe 23, so that the silicon micropowder transported by the screw rod 14 and assisted by the gas injection mechanism 2 can The guide tube 26 is smoothly guided out here. The detachable connection between the partition frame 210 and the limit ring 211 facilitates later maintenance and through-hole cleaning, ensuring smooth airflow channels. The through-hole design of the two does not hinder the airflow and can form a certain barrier to the silicon micropowder, reducing reverse material flow. The connection between the spherical connector 212 and the support frame 27 enhances the stability of the guide cylinder 26 when shaking, avoiding the airflow guiding effect affected by excessive shaking. The support of the positioning bracket 24 on the junction of the bending rod 29 and the servo motor 25 reduces vibration and wear during the transmission process and extends the service life of the components. The discharge pipe 13 is located at the end of the spiral rod 14 blade and above the connecting pipe 23. Combined with its downward tilt and perpendicular to the connecting pipe 23 design, it can efficiently receive silicon micropowder pushed by spiral conveying and gas assistance. The vertical layout can also reduce the interference of gas on the discharge. The tilt angle uses gravity to assist the discharge, improves the discharge efficiency, and at the same time avoids excessive accumulation of silicon micropowder in the conveying pipe 11, ensuring a continuous and stable feeding process.

[0023] Example 3: According to Figure 1-7 As shown, the air supply mechanism 3 includes a hollow base 31 and a connecting cylinder 32. The connecting cylinder 32 is fixedly mounted on the top of the hollow base 31 and the hollow base 31 is communicated with the connecting cylinder 32. A crank rocker mechanism 33 is rotatably installed inside the hollow base 31. The transmission rod of the crank rocker mechanism 33 is connected to the external power mechanism. One end of the rocker of the crank rocker mechanism 33 is rotatably connected to a piston 34. The piston 34 is slidably arranged inside the connecting cylinder 32. The connecting cylinder 32 is communicated with the first air injection pipe 21. The piston 34 is located below the junction of the connecting cylinder 32 and the hollow base 31. A blocking block 35 is symmetrically fixedly mounted on the top of the connecting cylinder 32. The blocking block 35 is used for air intake. When the blocking block 35 moves downward, external air is extracted through the blocking block 35. When the blocking block 35 moves upward, the blocking block 35 blocks the connecting cylinder 32, and the air is pressed into the first air injection pipe 21.

[0024] In this embodiment, the gas supply mechanism 3 is composed of a hollow base 31 and a connecting cylinder 32 fixedly mounted on the top thereof and connected thereto, forming the main structure of the gas supply. A crank rocker mechanism 33 is rotatably mounted inside the hollow base 31, and its transmission rod is connected to an external power mechanism. Under the drive of the external power, one end of the rocker of the crank rocker mechanism 33 drives the piston 34 connected in rotation to slide inside the connecting cylinder 32, and the piston 34 is located below the junction of the connecting cylinder 32 and the hollow base 31. The connecting cylinder 32 is connected to the first gas injection pipe 21, and at the same time, the top of the connecting cylinder 32 The symmetrically fixed blocking block 35 is used for air intake. When the blocking block 35 moves downward, it draws external air into the connecting tube 32. When the blocking block 35 moves upward, the blocking block 35 blocks the connecting tube 32, so that the internal air is pressed into the first air injection pipe 21, thereby providing a continuous air source for the air injection mechanism 2. The hollow base 31 provides a stable installation space for the crank rocker mechanism 33 to ensure that it can rotate stably. The connection design between the connecting tube 32 and the hollow base 31 ensures the integrity of the gas flow channel. The crank rocker mechanism 33 The power of the power mechanism is converted into the reciprocating sliding power of the piston 34, realizing the mechanical transmission of gas suction and discharge, improving the degree of automation of gas supply, the sliding of the piston 34 in the connecting cylinder 32 cooperates with the action of the blocking block 35, which can effectively control the suction and discharge of gas, ensuring the continuity and stability of gas supply, and the blocking block 35 is symmetrically installed on the top of the connecting cylinder 32. When moving downward, it extracts external air, and when moving upward, it blocks the connecting cylinder 32 and presses the air into the first gas injection pipe 21. This design improves the efficiency of gas suction and discharge and reduces gas Leakage, the piston 34 is located below the junction of the connecting cylinder 32 and the hollow base 31, which can better cooperate with the sealing block 35 to complete the compression and push of the gas, enhance the gas pressure, and ensure that the gas entering the first gas injection pipe 21 has sufficient power, thereby ensuring that the gas injection mechanism 2 can effectively inject gas into the conveying pipeline 11, assisting the transportation of silicon micropowder, and the various components of the entire gas supply mechanism 3 work together to provide the gas injection mechanism 2 with a stable, continuous and pressured gas source, thereby ensuring the normal operation of the entire feeding device and improving the efficiency and stability of silicon micropowder feeding.

[0025] The method of use and working principle of this device: when in use, first the silicon micropowder in the feed box 4 enters the bottom of the conveying pipe 11, the motor and the belt transmission assembly 12 are started to drive the screw rod 14 to rotate, and the screw rod 14 conveys the silicon micropowder upward, and at the same time the external power mechanism drives the crank rocker mechanism 33 in the hollow base 31 to rotate, and the crank rocker mechanism 33 drives the piston 34 to slide in the connecting cylinder 32, and when the blocking block 35 at the top of the connecting cylinder 32 moves downward, the external air is extracted, and when it moves upward, the connecting cylinder 32 is blocked and the air is pressed into the first gas injection pipe 21, and the gas is diverted through the first gas injection pipe 21 and the second gas injection pipe 22 and then enters the conveying pipe 11 through the connecting pipe 23, and the servo motor 25 inside the connecting pipe 23 works, and its output end drives the connecting rod 28 through the bending rod 29, so that the guide cylinder 26 shakes in a conical path, and the junction of the bending rod 29 and the servo motor 25 is connected by the connecting pipe The positioning bracket 24 on the inner wall of 23 is rotatably supported, and the support frame 27 at the bottom of the guide cylinder 26 obtains auxiliary support and limitation through the spherical connector 212 on one side of the limiting ring 211. The partition frame 210 between the limiting ring 211 and the conveying pipe 11 cooperates with the through hole of the limiting ring 211 through the internal through hole to ensure the passage of airflow, and the partition frame 210 and the limiting ring 211 are detachably connected by bolts for easy maintenance. The gas enters the conveying pipe 11 at a dynamic angle through the connecting pipes 23 that are symmetrically distributed above and below, and fully contacts the silicon micropowder conveyed by the screw 14. Finally, the silicon micropowder reaches the middle section of the conveying pipe 11 under the transportation of the screw 14 and the assistance of gas, and is discharged from the discharge pipe 13 located at the end of the screw blade 14, above the two connecting pipes 23 and inclined downward. The discharge pipe 13 is vertically arranged to the inclined upward connecting pipe 23 to ensure smooth discharge and no excessive interference from gas.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic feeding device for silicon micropowder production, characterized by: The invention comprises a feeding mechanism (1), wherein a pipeline of the feeding mechanism (1) is connected to an air injection mechanism (2), and the other end of the air injection mechanism (2) is connected to an air supply mechanism (3); the feeding mechanism (1) comprises a vertically arranged conveying pipeline (11) and a screw rod (14) rotatably installed inside the conveying pipeline; a motor and a belt transmission assembly (12) is fixedly installed on the top of the conveying pipeline (11); the motor and the belt transmission assembly (12) are fixedly connected to the screw rod (14); and one side of the bottom of the conveying pipeline (11) is connected to a supply box (4); The gas injection mechanism (2) comprises a first gas injection pipe (21) and a second gas injection pipe (22), wherein the second gas injection pipe (22) is connected to one side of the first gas injection pipe (21), and the end of the first gas injection pipe (21) and the end of the second gas injection pipe (22) are both fixedly connected to a connecting pipe (23), and the connecting pipes (23) are symmetrically distributed on both sides of the conveying pipe (11) in an upper and lower staggered manner; A guide cylinder (26) is provided on the inner side of the connecting pipe (23), and a support frame (27) is fixedly connected to the bottom of the guide cylinder (26), and a connecting rod (28) is fixedly connected to one side of the support frame (27). The connecting rod (28) is located on the axis of the guide cylinder (26), and the other end of the connecting rod (28) is fixedly connected to a bending rod (29). The connecting rod (28) is perpendicular to the end of the bending rod (29). A servo motor (25) is also provided on the inner side of the connecting pipe (23), and the output end of the servo motor (25) is fixedly connected to one end of the bending rod (29). The servo motor (25) drives the connecting rod (28) through the bending rod (29), so that the guide cylinder (26) shakes in a conical path, thereby changing the flow direction of the air.

2. The automatic feeding device for silicon micropowder production according to claim 1, characterized in that: A partition frame (210) is fixedly installed at the junction of the connecting pipe (23) and the conveying pipe (11), and one side of the partition frame (210) is detachably connected to a limiting ring (211) via bolts. The partition frame (210) is located between the limiting ring (211) and the conveying pipe (11), and through holes are provided inside the partition frame (210) and inside the limiting ring (211).

3. The automatic feeding device for silicon micropowder production according to claim 2, characterized in that: A spherical connector (212) is fixedly mounted on one side of the limiting ring (211), one end of the spherical connector (212) is fixedly connected to the support frame (27), a positioning bracket (24) is fixedly mounted on the inner wall of the connecting pipe (23), and the junction of the bending rod (29) and the servo motor (25) is rotatably mounted inside the positioning bracket (24).

4. The automatic feeding device for silicon micropowder production according to claim 1, characterized in that: The middle section of the conveying pipe (11) is connected to a discharge pipe (13), the discharge pipe (13) is located at the end of the blade of the screw rod (14), the discharge pipe (13) is located above the two connecting pipes (23), the discharge pipe (13) is inclined downward, the connecting pipe (23) is inclined upward, and the discharge pipe (13) and the connecting pipe (23) are perpendicular.

5. The automatic feeding device for silicon micropowder production according to claim 1, characterized in that: The air supply mechanism (3) comprises a hollow base (31) and a connecting cylinder (32), wherein the connecting cylinder (32) is fixedly mounted on the top of the hollow base (31) and the hollow base (31) and the connecting cylinder (32) are in communication, and a crank rocker mechanism (33) is rotatably mounted inside the hollow base (31), and a transmission rod of the crank rocker mechanism (33) is connected to an external power mechanism.

6. The automatic feeding device for silicon micropowder production according to claim 5, characterized in that: One end of the rocker of the crank rocker mechanism (33) is rotatably connected to a piston (34), and the piston (34) is slidably arranged inside the connecting cylinder (32). The connecting cylinder (32) is connected to the first gas injection pipe (21), and the piston (34) is located below the junction of the connecting cylinder (32) and the hollow base (31).

7. The automatic feeding device for silicon micropowder production according to claim 6, characterized in that: A blocking block (35) is symmetrically fixedly mounted on the top of the connecting cylinder (32). The blocking block (35) is used for air intake. When the blocking block (35) moves downward, external air is extracted through the blocking block (35). When the blocking block (35) moves upward, the blocking block (35) blocks the connecting cylinder (32), and air is pressed into the first air injection pipe (21).

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