Pneumatic silicon material crushing device

Abstract

The utility model relates to the technical field of polycrystalline silicon, in particular to a pneumatic silicon material crushing device. The device comprises a vibration feeding groove (1), a pneumatic breaking hammer (2), a feeding port (7), a discharging port (8) and a support (13). A plurality of pneumatic breaking hammers (2) are arranged on the bracket (13) above the vibratory feeding groove (1); the vibration feeding groove (1) is obliquely arranged, a feeding port (7) is formed in the oblique high side of the vibration feeding groove, and a discharging port (8) is formed in the oblique low end. The crusher has the advantage of high crushing efficiency. The energy is saved. The silicon material loss is low. The silicon rod utilization rate is high.

Description

Technical Field

[0001] This utility model relates to the field of polycrystalline silicon technology, specifically to a pneumatic silicon material crushing device. Background Technology

[0002] Polycrystalline silicon is a cylindrical product that needs to be crushed into blocks of different sizes and packaged into bags, a process that requires extremely high purity. Currently, jaw crushers are a common crushing device used by polycrystalline silicon companies to crush polycrystalline silicon rods.

[0003] Jaw crushers are widely used in relatively "coarse" industries such as mining, metallurgy, building materials, highways, railways, water conservancy, and chemicals for crushing various ores or large materials. In polysilicon production, the crushed silicon material must be free of non-silicon impurities, making it a relatively "fine" silicon material crushing process. Because the jaw crusher's crushing and conveying chambers are deep and have dead angles, impurities are easily introduced during the crushing process when the jaw plates crack or chip, or when the inner wall of the conveying chamber (made of PU material) wears down. Furthermore, the crushing chamber mainly consists of a moving jaw plate and a fixed jaw plate, resulting in a large surface area of ​​contact between the equipment and the silicon material during crushing. This also increases the introduction of non-silicon impurities, negatively impacting product quality. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pneumatic silicon material crushing device with high crushing efficiency, energy saving and environmental protection, low silicon material loss and high silicon rod utilization.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A pneumatic silicon material crushing device, the device comprising: a vibrating feed trough 1, a pneumatic crusher 2, a feeding port 7, a discharging port 8, and a support 13;

[0007] Several pneumatic breaker hammers 2 are installed on the support 13 above the vibrating feed trough 1;

[0008] The vibrating feed trough 1 is inclined, with the feed inlet 7 on the higher side of the inclination and the discharge outlet 8 on the lower side of the inclination.

[0009] Furthermore, the pneumatic breaker 2 is connected by an air pipe 3;

[0010] A solenoid valve 5 is installed on the pneumatic breaker 2.

[0011] Furthermore, the breaker head 4 on the pneumatic breaker 2 extends into the vibrating feed trough 1;

[0012] The adjacent breaker hammers 4 have different lengths.

[0013] Furthermore, the breaker head 4 on the pneumatic breaker 2 is made of tungsten-cobalt alloy.

[0014] Furthermore, a blower head 6 is provided between the pneumatic breakers 2.

[0015] Furthermore, the device also includes a dust hood 9;

[0016] The dust removal hood 9 is installed on the side wall of the vibrating feed trough 1 above the discharge port 8;

[0017] Dust hood 9 is connected to the dust removal device.

[0018] Furthermore, the bracket 13 is inclined; the inclination direction is consistent with the inclination direction of the vibrating feed trough 1, and the inclination angle of the bracket 13 is greater than or equal to the inclination angle of the vibrating feed trough 1.

[0019] Furthermore, the inclination angle of the vibrating feed trough 1 is 10-20°;

[0020] The tilt angle of bracket 13 is 12-22°.

[0021] Furthermore, the bottom ends of the vibrating feed trough 1 are connected to the base 12 by support springs 10;

[0022] A vibrator 11 is installed at the bottom of the vibrating feed trough 1.

[0023] This utility model provides a pneumatic silicon material crushing device. The crushing hammer head of the pneumatic breaker is made of tungsten-cobalt alloy to avoid non-silicon impurity contamination caused by wear between the crushing hammer head and the polycrystalline silicon rod. To ensure that the silicon material is crushed to the required size, the crushing hammer heads in rows 1, 3, 5, 7, and 9 are staggered from rows 2, 4, 6, 8, and 10. The hammer heads are inclined at 12-22° from the front to the rear, and the height of the crushing hammer heads decreases by 1-4 cm from row 1 to row 10 to prevent omissions. The vibrating feed trough is inclined at 10-20° from the front (feeding port) to the rear (discharge port); the crushed silicon material is conveyed forward by vibration.

[0024] This utility model provides a pneumatic silicon material crushing device, in which a blowing head is set between adjacent pneumatic crushing hammers to blow high-pressure air into the vibrating feed trough, cleaning the crushing hammer heads while blowing away silicon material powder. The blown-away silicon material powder is collected by a dust collection hood connected to a dust removal device.

[0025] This utility model provides a pneumatic silicon material crushing device. In use, silicon material is placed vertically in two rows into the feeding port and transported to the vibrating feeding trough. The pneumatic crusher crushes the silicon material. The crushed silicon material is then transported to the discharge port by vibration and gravity. The blowing head blows high-pressure air into the vibrating feeding trough to clean the crusher head and disperse the silicon material powder. The dispersed silicon material powder is collected by a dust collector connected to a dust removal device.

[0026] This utility model provides a pneumatic silicon material crushing device with no dead corners inside, facilitating cleaning and effectively preventing non-silicon impurities from being introduced into the finished product. It also reduces the surface area of ​​contact between the crushing equipment and the silicon material, avoiding unnecessary wear and contact. This reduces equipment wear and increases its service life. Furthermore, it reduces powder output and improves the utilization rate of silicon rods.

[0027] Compared with the prior art, the advantages of the pneumatic silicon crushing device provided by this utility model are:

[0028] (1) High crushing efficiency.

[0029] (2) Energy saving and environmental protection.

[0030] (3) Low silicon material loss.

[0031] (4) High utilization rate of silicon rods. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a pneumatic silicon material crushing device provided by this utility model.

[0033] In the diagram: 1 is the vibrating feed trough, 2 is the pneumatic breaker, 3 is the air pipe, 4 is the breaker head, 5 is the solenoid valve, 6 is the blower head, 7 is the feed port, 8 is the discharge port, 9 is the dust hood, 10 is the support spring, 11 is the vibrator, 12 is the base, and 13 is the bracket. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of this utility model, the following embodiments provide a more detailed description of this utility model. These embodiments are only used to illustrate the utility model and are not intended to limit the scope of this utility model.

[0035] A pneumatic silicon material crushing device, the device comprising: a vibrating feed trough 1, a pneumatic crusher 2, a feeding port 7, a discharging port 8, and a support 13;

[0036] Several pneumatic breaker hammers 2 are installed on the support 13 above the vibrating feed trough 1;

[0037] The vibrating feed trough 1 is inclined, with the feed inlet 7 on the higher side of the inclination and the discharge outlet 8 on the lower side of the inclination.

[0038] Furthermore, the pneumatic breaker 2 is connected by an air pipe 3; a solenoid valve 5 is installed on the pneumatic breaker 2.

[0039] Furthermore, the breaker head 4 on the pneumatic breaker 2 extends into the vibrating feed trough 1; the adjacent breaker heads 4 have different lengths.

[0040] Furthermore, the breaker head 4 on the pneumatic breaker 2 is made of tungsten-cobalt alloy.

[0041] Furthermore, a blower head 6 is provided between the pneumatic breakers 2.

[0042] Furthermore, the device also includes a dust removal hood 9; the dust removal hood 9 is disposed on the side wall of the vibrating feed trough 1 above the discharge port 8; the dust removal hood 9 is connected to the dust removal device.

[0043] Furthermore, the bracket 13 is inclined; the inclination direction is consistent with the inclination direction of the vibrating feed trough 1, and the inclination angle of the bracket 13 is greater than or equal to the inclination angle of the vibrating feed trough 1.

[0044] Furthermore, the inclination angle of the vibrating feed trough 1 is 10-20°; the inclination angle of the support 13 is 12-22°.

[0045] Furthermore, the bottom ends of the vibrating feed trough 1 are connected to the base 12 by support springs 10; a vibrator 11 is installed at the bottom of the vibrating feed trough 1. Example

[0046] A pneumatic silicon material crushing device includes: a vibrating feed trough 1, pneumatic crushers 2, a feed inlet 7, a discharge outlet 8, and a support 13; ten pneumatic crushers 2 are mounted on the support 13 above the vibrating feed trough 1; the vibrating feed trough 1 is inclined, with the feed inlet 7 located on the higher side of the inclination and the discharge outlet 8 located on the lower side of the inclination. The crusher heads in rows 1, 3, 5, 7, and 9 are staggered with rows 2, 4, 6, 8, and 10.

[0047] The pneumatic breaker 2 is connected by an air pipe 3; a solenoid valve 5 is installed on the pneumatic breaker 2. The breaker head 4 on the pneumatic breaker 2 extends into the vibrating feed trough 1; adjacent breaker heads 4 have different lengths. The breaker head 4 on the pneumatic breaker 2 is made of tungsten-cobalt alloy.

[0048] The bracket 13 is inclined; the inclination direction is the same as the inclination direction of the vibrating feed trough 1, and the inclination angle of the bracket 13 is greater than or equal to the inclination angle of the vibrating feed trough 1. The inclination angle of the vibrating feed trough 1 is 10°; the inclination angle of the bracket 13 is 12°. The bottom ends of the vibrating feed trough 1 are connected to the base 12 by support springs 10; a vibrator 11 is installed at the bottom of the vibrating feed trough 1. Example

[0049] A pneumatic silicon material crushing device includes: a vibrating feed trough 1, pneumatic crushers 2, a feed inlet 7, a discharge outlet 8, and a support 13; ten pneumatic crushers 2 are mounted on the support 13 above the vibrating feed trough 1; the vibrating feed trough 1 is inclined, with the feed inlet 7 located on the higher side of the inclination and the discharge outlet 8 located on the lower side of the inclination. The crusher heads in rows 1, 3, 5, 7, and 9 are staggered with rows 2, 4, 6, 8, and 10.

[0050] The pneumatic breaker 2 is connected by an air pipe 3; a solenoid valve 5 is installed on the pneumatic breaker 2. The breaker head 4 on the pneumatic breaker 2 extends into the vibrating feed trough 1; adjacent breaker heads 4 have different lengths. The breaker head 4 on the pneumatic breaker 2 is made of tungsten-cobalt alloy. A blower head 6 is installed between the pneumatic breaker 2. The device also includes a dust collector 9; the dust collector 9 is installed on the side wall of the vibrating feed trough 1 above the discharge port 8; the dust collector 9 is connected to a dust removal device. The support 13 is inclined; the inclination direction is the same as the inclination direction of the vibrating feed trough 1, and the inclination angle of the support 13 is greater than or equal to the inclination angle of the vibrating feed trough 1. The inclination angle of the vibrating feed trough 1 is 20°; the inclination angle of the support 13 is 22°. The bottom ends of the vibrating feed trough 1 are connected to the base 12 by support springs 10; a vibrator 11 is installed at the bottom of the vibrating feed trough 1.

[0051] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0052] It should also be noted that the various specific technical features and steps described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0053] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A pneumatic silicon material breaking device, characterized by, The device comprises a vibrating feeding tank (1), pneumatic breaking hammers (2), a feeding port (7), a discharging port (8) and a support (13). The support (13) above the vibrating feeding tank (1) is provided with a plurality of pneumatic breaking hammers (2). The vibrating feeding tank (1) is arranged obliquely, with the feeding port (7) arranged at the high oblique side and the discharging port (8) arranged at the low oblique side.

2. The pneumatic silicon material breaking device according to claim 1, characterized in that: The pneumatic breaking hammers (2) are connected by air pipes (3). The pneumatic breaking hammers (2) are provided with electromagnetic valves (5).

3. The pneumatic silicon material breaking device according to claim 1, characterized in that: The breaking hammer heads (4) of the pneumatic breaking hammers (2) extend into the vibrating feeding tank (1). The lengths of adjacent breaking hammer heads (4) are different.

4. The pneumatic silicon material breaking device according to claim 1, characterized in that: The material of the breaking hammer heads (4) of the pneumatic breaking hammers (2) is tungsten-cobalt alloy.

5. The pneumatic silicon material breaking device according to claim 1, characterized in that: The pneumatic breaking hammers (2) are provided with blowing heads (6).

6. The pneumatic silicon material breaking device according to claim 1, characterized in that: The device further comprises a dust removal cover (9). The dust removal cover (9) is arranged on the sidewall of the vibrating feeding tank (1) above the discharging port (8). The dust removal cover (9) is connected with a dust removal device.

7. The pneumatic silicon material breaking device according to claim 1, characterized in that: The support (13) is arranged obliquely, with the oblique direction being consistent with the oblique direction of the vibrating feeding tank (1), and the oblique angle of the support (13) being greater than or equal to the oblique angle of the vibrating feeding tank (1).

8. The pneumatic silicon material breaking device according to claim 7, characterized in that: The oblique angle of the vibrating feeding tank (1) is 10-20°. The oblique angle of the support (13) is 12-22°.

9. The pneumatic silicon material breaking device according to claim 1, characterized in that: The two ends of the bottom of the vibrating feeding tank (1) are connected with the base (12) by supporting springs (10). The bottom of the vibrating feeding tank (1) is provided with a vibrator (11).

Images