CN105436132B - A kind of safety anti-explosive formula silica flour process units - Google Patents

Abstract

The invention discloses a safe explosion-proof silicon powder production device. A separation tank for receiving materials is arranged below the discharge port of a horizontal mixer, a frame is arranged behind the separation tank, and a vertical crushing device is installed on the frame. Machine, set a driven pulley on the upper end of the input shaft of the vertical crusher, the driven pulley is connected with the driving pulley through a belt, the driving pulley is set on the output shaft of the motor, and the first jet is installed on the upper end of the vertical crusher shell. Nozzle, the second air nozzle is installed in the lower part of the vertical crusher shell; there is a collection box under the vertical crusher, and a chute is provided on the oblique upper side of the vertical crusher, and the lower end of the chute extends into the vertical crusher , Install a hopper on the upper end of the chute, and the bucket-type net material elevator that feeds the hopper is located in front of the frame. The invention adopts the method of stirring to clean the silicon block, which has high cleaning efficiency and good cleaning effect; during the crushing process, nitrogen gas is charged to isolate the air, and the safety is good.

Description

A safe explosion-proof silicon powder production device

technical field

The invention belongs to the technical field of powder metallurgy, and in particular relates to a safe explosion-proof silicon powder production device.

Background technique

Silicon powder is prepared from silicon block as raw material and is widely used in various high-tech industries. At present, the preparation method of silicon powder is to wash first and then crush. The cleaning method generally adopts washing or soaking. Not only the cleaning efficiency is low, the labor intensity of the workers is high, but also the cleaning effect is poor; while the crushing method usually adopts direct extrusion crushing. Or direct impact crushing, there is no isolation of air in the crushing process, and there are deficiencies such as prone to explosion and poor safety. Therefore, on the premise of ensuring processing efficiency, how to safely produce silicon powder is a technical problem that the industry is working hard to solve.

Contents of the invention

The technical problem to be solved by the present invention is to provide a safe explosion-proof silicon powder production device, which can effectively improve the cleaning efficiency and cleaning effect, and has good safety.

The technical scheme of the present invention is as follows: a safe explosion-proof silicon powder production device, characterized in that: a horizontal mixer is installed on the bottom frame, the feed port of the horizontal mixer is behind the front discharge port, and A bucket-type raw material elevator is arranged on the front side of the feed port of the horizontal mixer, and the bucket-type raw material elevator feeds materials to the feed port of the horizontal mixer, and a separation tank for receiving materials is set below the discharge port of the horizontal mixer , the bottom of the separation tank is a screen structure;

A frame is arranged behind the separation tank, and a vertical crusher is installed on the frame. The upper end of the input shaft of the vertical crusher protrudes from the top of the vertical crusher shell, Set the driven pulley, the driven pulley is connected with the driving pulley through the belt, the driving pulley is set on the output shaft of the motor, and the motor is installed on the top of the frame through the frame; at the upper end of the vertical crusher shell The first air nozzle is installed, and the second air nozzle is installed on the lower part of the vertical crusher shell. The first air nozzle and the second air nozzle are located on the same side of the vertical crusher shell, and the inlet end of the first air nozzle is at The upper air outlet is set on a downward slope, and the second air nozzle is installed on a lower air outlet. on the bottom of the vertical crusher, there is a collection box, and rollers are installed at the four corners of the bottom of the collection box; a chute is provided on the oblique upper side of the vertical crusher, and the chute is set obliquely, The lower end of the chute extends into the vertical crusher, and a hopper is installed on the upper end of the chute, and the bucket-type net material elevator that feeds the hopper is located in front of the frame.

The present invention cleverly uses the horizontal mixer for the cleaning of silicon blocks. The bucket-type raw material elevator lifts the loaded silicon block to the set height, and sends it into the horizontal mixer through the feeding port. The horizontal mixer is filled with clean water. When the horizontal mixer is running, the silicon block is fully stirred Clean it to remove the dirt and impurities attached to the silicon block. After cleaning, the silicon block and sewage are poured into the separation tank from the discharge port of the horizontal mixer. Since the bottom of the separation tank is a screen structure, It can make the sewage flow away through the screen along with the dirt and impurities, while the silicon block remains in the separation tank.

The cleaned and drained silicon blocks are transported to the hopper through the bucket elevator, and enter the vertical crusher along the chute under the action of gravity. The output shaft of the motor drives the driving pulley to rotate, and the driving pulley is driven by the belt. The moving belt pulley and the input shaft of the vertical crusher rotate together to break the silicon block in the vertical crusher into silicon powder. It can be seen that the present invention is not only simple in structure, easy to implement, easy to assemble, takes up little space, stable and reliable in transmission, high in production efficiency, but also high in cleaning efficiency, remarkable in cleaning effect, and can effectively reduce the labor intensity of workers. During the crushing process, the vertical crusher is continuously filled with nitrogen gas through the first air nozzle and the second air nozzle. The nitrogen gas isolates the upper and lower parts of the crushing operation area from the air, which can effectively prevent sparks caused by damage. Explosion, good safety. The two air nozzles are arranged on the same side of the vertical crusher shell, which can facilitate the pipeline routing and shorten the pipeline; the first air nozzle sprays nitrogen gas from the top obliquely downward, and the second air nozzle from the bottom obliquely upward Nitrogen is injected so that the nitrogen enters the vertical crusher and has a better effect of isolating the air. The collection box under the vertical crusher is used to receive the processed silicon powder. The collection box is rolled and matched with the bottom surface through four rollers, which is convenient and labor-saving to move. The invention feeds materials to the vertical crusher through the bucket elevator and the chute, which is easy to operate, has high degree of automation, and can greatly reduce manpower.

In order to simplify the structure, reduce the cost and ensure the stability of the support for the horizontal mixer, the underframe is a frame structure welded by rectangular tubes.

In order to facilitate processing and manufacture and ensure structural strength, the separation tank is a square box with an open upper end.

In order to simplify the structure and facilitate the discharge of silicon powder, the lower part of the vertical crusher shell is conical with a large top and a small bottom.

In order to facilitate processing and manufacture and ensure structural strength, the machine base is a frame structure welded by rectangular tubes.

Beneficial effects: the invention has ingenious design, simple and compact structure, easy assembly, small space occupation, stable and reliable transmission, and high production efficiency; the silicon block is cleaned by stirring, which has high cleaning efficiency and good cleaning effect, and saves labor for workers. The strength is small; during the crushing process, nitrogen is filled to isolate the air, which effectively eliminates the potential safety hazard of explosion.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

detailed description

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

As shown in FIG. 1 , the underframe 1 is a frame structure welded by rectangular tubes, and a horizontal mixer 2 is installed on the top of the underframe 1 , and the horizontal mixer 2 is supported by the underframe 1 . The feed port of the horizontal mixer 2 is at the front and the discharge port is behind, and a bucket-type raw material elevator 3 is arranged on the front side of the feed port of the horizontal mixer 2, and the bucket-type raw material elevator 3 is connected to the feed port of the horizontal mixer 2. feed. The separation tank 4 that is used for receiving material is arranged at the rear bottom of the horizontal mixer 2 outlets, the separation tank 4 is preferably a square box with an open upper end, and the bottom of the separation tank 4 is a screen structure, and the mesh size of the screen is based on Actual needs to be determined.

As shown in Figure 1, a frame 11 is provided behind the separation tank 4, and a vertical crusher 12 is installed on the frame 11. The lower part of the vertical crusher 12 housing is conical with a large top and a small bottom. The upper end of the input shaft of the vertical crusher 12 protrudes from the top of the casing of the vertical crusher 12, and the upper end of the input shaft of the vertical crusher 12 is fitted with a driven pulley 13, which is connected to the driving pulley 14 through a belt. The driving pulley 14 is sleeved on the output shaft of the motor 15 . The motor 15 is located above the frame 11 , and the housing of the motor 15 is fixed to the machine base 16 . The support 16 is a frame structure welded by rectangular tubes, and the bottom of the support 16 is welded to the top of the frame 11 .

As shown in Figure 1, a first air nozzle 17 is installed on the upper end of the vertical crusher 12 housing, and a second air nozzle 18 is installed on the bottom of the vertical crusher 12 housing, the first air nozzle 17 and the second air nozzle 18 Located on the same side of the shell of the vertical crusher 12, the air inlet end of the first air nozzle 17 is arranged at an inclination downward at the upper air outlet end, and the air inlet end of the second air nozzle 18 is arranged at an upward inclination at the lower air outlet end, and the inclination of the two air nozzles The angle is determined according to actual needs. The first air nozzle 17 and the second air nozzle 18 are all connected with the control valve 19 through the air pipe, the control valve 19 is installed on the fixed suspension plate at the top of the frame 11, and the control valve 19 is connected with the nitrogen source through the air pipe. The bottom of the vertical crusher 12 is provided with a collection box 23 , the upper end of the collection box 23 is open, and rollers 24 are installed at the four corners of the bottom of the collection box 23 .

As shown in Figure 1, a chute 20 is provided obliquely above the vertical crusher 12, and the chute 20 is arranged obliquely. The lower end of the chute 20 extends into the vertical crusher 12. The bucket type clean material hoist 22 of 21 feeds is positioned at the place ahead of frame 11.

The present invention cleans like this:

The bucket-type raw material elevator 3 lifts the loaded silicon block to the set height, and sends it into the horizontal mixer 2 through the feed port, and the horizontal mixer 2 is filled with clean water. When the horizontal mixer 2 is running, the Fully stir the silicon block to clean it, so that the dirt and impurities attached to the silicon block are separated. After the cleaning is completed, the silicon block and sewage are poured into the separation tank 4 from the discharge port of the horizontal mixer 2. The bottom of the tank is a sieve structure, which enables sewage, dirt, impurities, etc. to flow away through the sieve, while the silicon blocks remain in the separation tank.

The present invention is broken like this:

The cleaned and drained silicon blocks are transported to the hopper 21 through the bucket elevator 22, and enter the vertical crusher 12 along the chute 20 under the action of gravity, and the output shaft of the motor 15 drives the driving pulley 14 to rotate, The driving pulley 14 drives the driven pulley 13 and the input shaft of the vertical crusher 12 to rotate together through the belt, so that the silicon block in the vertical crusher 12 can be broken into silicon powder. During the crushing process, the control valve 19 is opened, and nitrogen gas is continuously filled into the vertical crusher 12 through the first air nozzle 17 and the second air nozzle 18. The role of explosion-proof.

The above-mentioned vertical crusher is the prior art, and its structure and working principle will not be repeated here.

Claims (3)

1. A safe explosion-proof silicon powder production device is characterized in that: a horizontal mixer (2) is installed on the underframe (1), and the feed port of the horizontal mixer (2) is behind the front discharge port, A bucket-type raw material elevator (3) is arranged on the front side of the feed inlet of the horizontal mixer (2), and the bucket-type raw material elevator (3) feeds to the feed inlet of the horizontal mixer (2). A separation tank (4) for receiving materials is arranged at the rear and lower part of the discharge port of the type mixer (2), and the bottom of the separation tank (4) is a screen structure; A frame (11) is arranged behind the separation tank (4), and a vertical crusher (12) is installed on the frame (11), and the upper end of the input shaft of the vertical crusher (12) protrudes from the On the top of the machine (12) housing, a driven pulley (13) is set on the upper end of the input shaft of the vertical crusher (12), and the driven pulley (13) is connected with the driving pulley (14) through a belt, and the driving pulley (14) Set on the output shaft of the motor (15), the motor (15) is installed on the top of the frame (11) through the base (16); An air nozzle (17), the second air nozzle (18) is installed on the bottom of the vertical crusher (12) housing, and the first air nozzle (17) and the second air nozzle (18) are located in the vertical crusher ( 12) On the same side of the housing, the air inlet end of the first air nozzle (17) is arranged obliquely downward at the upper air outlet end, the air inlet end of the second air nozzle (18) is obliquely arranged at the upper air outlet end, and the first air nozzle ( 17) and the second air nozzle (18) are all connected with the control valve (19) through the air pipe, and the control valve (19) is installed on the hanging plate fixed on the top of the frame (11); in the vertical crusher (12) The bottom of the bottom is provided with a collection box (23), and rollers (24) are installed at the four corners of the bottom of the collection box (23); A chute (20) is provided on the oblique top of the vertical crusher (12), the chute (20) is arranged obliquely, and the lower end of the chute (20) extends into the vertical crusher (12). A hopper (21) is installed at the upper end of the hopper (21), and the bucket type net material elevator (22) feeding the hopper (21) is positioned at the front of the frame (11); The underframe (1) is a frame structure welded by rectangular tubes; The separation tank (4) is a square box with an open upper end. 2. The safe explosion-proof silicon powder production device according to claim 1, characterized in that: the lower part of the vertical crusher (12) shell is conical with a large top and a small bottom. 3. The safety explosion-proof silicon powder production device according to claim 1, characterized in that: the machine base (16) is a frame structure welded by rectangular tubes.