Automatic silicon powder mixing device

Abstract

The utility model relates to the technical field of silicon powder production, in particular to an automatic silicon powder mixing device which comprises a mixing barrel, a discharge valve arranged at the lower end of the mixing barrel, a feeding pipe arranged at the upper end of the mixing barrel, a stirring component arranged in the mixing barrel, a support arranged at the upper end of the mixing barrel, a driving mechanism arranged on the support, and a driving pipe connected with the lower end of the driving mechanism. The lower end of the driving pipe is connected with the stirring assembly, the driving pipe is sleeved with an air inlet box, the air inlet box is connected with a high-pressure air supply mechanism, the driving pipe in the air inlet box is provided with an air inlet, the driving pipe is provided with a mounting plate, the lower end of the mounting plate is provided with a rotating shaft, the rotating shaft is provided with an air nozzle, and the air nozzle is provided with a hose connected with the driving pipe. The silicon powder mixing device has the function of automatically cleaning silicon powder remaining on the inner wall of the mixing barrel.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon powder production, in particular to an automatic silicon powder mixing device. Background Art

[0002] Silicon powder is a common raw material, widely used in the construction industry, electronics industry and ceramic processing field. The equipment used in the stirring and mixing process of silicon powder is a mixing device. The conventional mixing device includes a mixing barrel, which is equipped with a stirring mechanism. The silicon powder is discharged after the stirring and mixing is completed. However, due to the small particle size of the silicon powder, some of the silicon powder will remain on the inner wall of the mixing barrel. To clean it, the mixing barrel can only be opened, which is rather cumbersome. Therefore, it is particularly necessary to develop an automatic silicon powder mixing device that can automatically clean the silicon powder remaining on the inner wall of the mixing barrel. Summary of the invention

[0003] The utility model aims to provide an automatic silicon powder mixing device, which has the function of automatically cleaning the silicon powder remaining on the inner wall of a mixing cylinder.

[0004] The technical solutions adopted are as follows:

[0005] A silicon powder automatic mixing device comprises a mixing barrel, a discharge valve is arranged at the lower end of the mixing barrel, a feed pipe is arranged at the upper end of the mixing barrel, a stirring assembly is arranged in the mixing barrel, a bracket is arranged at the upper end of the mixing barrel, a driving mechanism is arranged at the bracket, a driving pipe is connected to the lower end of the driving mechanism, the lower end of the driving pipe is connected to the stirring assembly, an air intake box is sleeved on the outer side of the driving pipe, the air intake box is connected to a high-pressure air supply mechanism, an air inlet is opened on the driving pipe inside the air intake box, a mounting plate is arranged on the driving pipe, a rotating shaft is arranged at the lower end of the mounting plate, an air nozzle is installed on the rotating shaft, and the air nozzle is provided with a hose connected to the driving pipe.

[0006] Preferably, a conical material guide tray is provided on the upper end of the mounting plate.

[0007] Preferably, a plurality of material distribution baffles are evenly arranged on the upper end of the conical material guide plate.

[0008] Preferably, the rotating shaft is rotatably connected to the mounting plate, a driven gear is coaxially arranged on the rotating shaft, a counterweight block is slidably arranged at the lower end of the mounting plate, the counterweight block is connected to a rack meshing with the driven gear, and the counterweight block is provided with a tension spring connected to the drive tube.

[0009] Preferably, there are multiple rotating shafts and air nozzles, and the rotating shafts and air nozzles are evenly distributed at the lower end of the mounting plate.

[0010] Compared with the prior art, the beneficial effects are:

[0011] 1. The utility model utilizes a high-pressure gas supply mechanism to supply gas to the driving tube, thereby utilizing a hose to deliver the gas to the air nozzle. The rotating driving tube drives the mounting plate and the air nozzle to rotate, and blows the high-pressure gas toward the inner wall of the mixing barrel, blowing off the silicon powder attached to the inner wall of the mixing barrel, thereby cleaning the inner wall of the mixing barrel.

[0012] 2. The utility model changes the rotation speed of the mounting plate by adjusting the rotation speed of the driving tube. When the rotation speed of the mounting plate is fast, the centrifugal force is large, and the counterweight is away from the driving tube, so that the rack drives the driven gear to rotate to adjust the angle of the air jet. The change of the air jet angle facilitates the cleaning of high-pressure gas at various locations inside the barrel.

[0013] 3. The conical guide plate and the material distribution baffle of the utility model evenly disperse the silicon powder falling onto the conical guide plate to various places in the mixing barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a silicon powder automatic mixing device of the utility model.

[0015] Figure 2 yes Figure 1 The structural diagram at A in the middle,

[0016] Figure 3 yes Figure 1 The structural diagram at B in the figure is as follows:

[0017] In the figure: 1. mixing barrel, 2. discharge valve, 3. feed pipe, 4. stirring assembly, 5. bracket, 6. drive mechanism, 7. drive pipe, 8. air inlet box, 9. high-pressure air supply mechanism, 10. air inlet, 11. mounting plate, 12. conical guide plate, 13. material distribution baffle, 14. air nozzle, 15. hose, 16. driven gear, 17. counterweight, 18. rack, 19. tension spring. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with specific embodiments. Figures 1 to 3 As shown:

[0019] Embodiment 1: A silicon powder automatic mixing device comprises a mixing barrel 1, a discharge valve 2 is arranged at the lower end of the mixing barrel 1, the discharge valve 2 controls the lowering of the material inside the mixing barrel 1, a feeding pipe 3 is arranged at the upper end of the mixing barrel 1, silicon powder is put into the mixing barrel 1 through the feeding pipe 3, a stirring assembly 4 is arranged in the mixing barrel 1, a bracket 5 is arranged at the upper end of the mixing barrel 1, the bracket 5 is provided with a driving mechanism 6, the lower end of the driving mechanism 6 is connected to a driving pipe 7, the lower end of the driving pipe 7 is connected to the stirring assembly 4, the driving mechanism 6 drives the stirring assembly 4 to rotate by using the driving pipe 7, and the stirring assembly 4 mixes the silicon powder entering the mixing barrel 1,

[0020] An air intake box 8 is sleeved on the outside of the driving tube 7, and the air intake box 8 and the driving tube 7 are rotatably sealed and connected. The rotatably sealed connection is an existing mechanism and will not be described in detail here. The air intake box 8 is connected to a high-pressure air supply mechanism 9, which is an existing technology and will not be described in detail here. The driving tube 7 inside the air intake box 8 is provided with an air inlet 10, and the high-pressure air supply mechanism 9 transports the high-pressure gas to the air intake box 8 and then enters the driving tube 7 from the air inlet 10.

[0021] The driving tube 7 is provided with a mounting plate 11, a rotating shaft is provided at the lower end of the mounting plate 11, an air nozzle 14 is installed on the rotating shaft, and the air nozzle 14 is provided with a hose 15 connected to the driving tube 7, and the hose 15 conveys gas to the air nozzle 14. The rotating driving tube 7 drives the mounting plate 11 and the air nozzle 14 to rotate, and blows the high-pressure gas toward the inner wall of the mixing barrel 1, blows off the silicon powder attached to the inner wall of the mixing barrel 1, and plays a role in cleaning the inner wall of the mixing barrel 1;

[0022] Embodiment 2: A silicon powder automatic mixing device comprises a mixing barrel 1, a discharge valve 2 is arranged at the lower end of the mixing barrel 1, the discharge valve 2 controls the lowering of the material inside the mixing barrel 1, a feeding pipe 3 is arranged at the upper end of the mixing barrel 1, silicon powder is put into the mixing barrel 1 through the feeding pipe 3, a stirring assembly 4 is arranged in the mixing barrel 1, a bracket 5 is arranged at the upper end of the mixing barrel 1, the bracket 5 is provided with a driving mechanism 6, the lower end of the driving mechanism 6 is connected to a driving pipe 7, the lower end of the driving pipe 7 is connected to the stirring assembly 4, the driving mechanism 6 drives the stirring assembly 4 to rotate by using the driving pipe 7, and the stirring assembly 4 mixes the silicon powder entering the mixing barrel 1,

[0023] An air intake box 8 is sleeved on the outside of the driving tube 7, and the air intake box 8 and the driving tube 7 are rotatably sealed and connected. The rotatably sealed connection is an existing mechanism and will not be described in detail here. The air intake box 8 is connected to a high-pressure air supply mechanism 9, which is an existing technology and will not be described in detail here. The driving tube 7 inside the air intake box 8 is provided with an air inlet 10, and the high-pressure air supply mechanism 9 transports the high-pressure gas to the air intake box 8 and then enters the driving tube 7 from the air inlet 10.

[0024] The driving tube 7 is provided with a mounting plate 11, and a conical material guide plate 12 is provided on the upper end of the mounting plate 11. A plurality of material distribution baffles 13 are evenly provided on the upper end of the conical material guide plate 12. The conical material guide plate 12 and the material distribution baffles 13 evenly distribute the silicon powder falling on the conical material guide plate 12 to various parts of the mixing barrel 1.

[0025] A plurality of rotating shafts are arranged at the lower end of the mounting plate 11, on which air nozzles 14 are installed. The rotating shafts and air nozzles 14 are evenly distributed at the lower end of the mounting plate 11, and the air nozzles 14 are provided with hoses 15 connected with the driving pipe 7. The rotating shaft is rotatably connected with the mounting plate 11, and a driven gear 16 is coaxially arranged on the rotating shaft. A counterweight 17 is slidably arranged at the lower end of the mounting plate 11, and the counterweight 17 is connected with a rack 18 meshing with the driven gear 16, and the counterweight 17 is provided with a tension spring 19 connected with the driving pipe 7. The rotating speed of the driving pipe 7 is adjusted to change the rotating speed of the mounting plate 11. When the rotating speed of the mounting plate 11 is fast, the centrifugal force is large, and the counterweight 17 is away from the driving pipe 7, so that the rack 18 is used to drive the driven gear 16 to rotate to adjust the angle of the air nozzle 14. The change in the angle of the air nozzle 14 facilitates the cleaning of high-pressure gas at various locations inside the material exchange barrel.

[0026] The specific working process is as follows: when mixing, close the high-pressure air supply mechanism 9, start the driving mechanism 6 to control the rotation of the conical guide plate 12 and the stirring assembly 4, put the silicon powder into the feeding pipe 3, and the silicon powder is evenly distributed to various places of the mixing barrel 1 by the conical guide plate 12 and the material distribution baffle 13, and is stirred and mixed by the stirring assembly 4. After the mixing is completed, open the discharge valve 2 to discharge, and then start the high-pressure air supply mechanism 9 to supply air to the driving pipe 7, start the driving mechanism 6, and the hose 15 conveys the gas to the air nozzle 14. The rotating driving pipe 7 drives the mounting plate 11 and the air nozzle 14 to rotate, and blows the high-pressure gas to the inner wall of the mixing barrel 1, blows off the silicon powder attached to the inner wall of the mixing barrel 1, and adjusts the rotation speed of the driving pipe 7 to change the angle of the air nozzle 14. The change in the angle of the air nozzle 14 facilitates the cleaning of the high-pressure gas at various places inside the barrel.

[0027] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A silicon powder automatic mixing device, characterized in that: It includes a mixing barrel, a discharge valve is arranged at the lower end of the mixing barrel, a feed pipe is arranged at the upper end of the mixing barrel, a stirring assembly is arranged in the mixing barrel, a bracket is arranged at the upper end of the mixing barrel, a driving mechanism is arranged at the bracket, a driving pipe is connected to the lower end of the driving mechanism, the lower end of the driving pipe is connected to the stirring assembly, an air intake box is sleeved on the outer side of the driving pipe, the air intake box is connected to a high-pressure air supply mechanism, an air inlet is opened on the driving pipe inside the air intake box, a mounting plate is arranged on the driving pipe, a rotating shaft is arranged at the lower end of the mounting plate, an air nozzle is installed on the rotating shaft, and the air nozzle is provided with a hose connected to the driving pipe.

2. The automatic silicon powder mixing device according to claim 1, characterized in that: A conical material guide tray is arranged on the upper end of the mounting plate.

3. The automatic silicon powder mixing device according to claim 2, characterized in that: A plurality of material distribution baffles are evenly arranged on the upper end of the conical material guide plate.

4. The automatic silicon powder mixing device according to claim 1, characterized in that: The rotating shaft is rotatably connected to the mounting plate, a driven gear is coaxially arranged on the rotating shaft, a counterweight is slidably arranged at the lower end of the mounting plate, the counterweight is connected to a rack meshing with the driven gear, and the counterweight is provided with a tension spring connected to the driving tube.

5. The automatic silicon powder mixing device according to claim 1, characterized in that: There are multiple rotating shafts and air nozzles, and the rotating shafts and air nozzles are evenly distributed at the lower end of the mounting plate.

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