High-efficiency uniform feeding, sieving and crushing system for polysilicon and monocrystalline silicon and method thereof

A crushing system, polysilicon technology, applied in the field of crushing system, high-efficiency polysilicon and single crystal silicon uniform feeding screening crushing, high-efficiency polysilicon and single crystal silicon uniform feeding screening crushing system field, can solve the problem of uneven feeding Crushing efficiency and other issues to achieve the effect of reducing scrap rate, avoiding local wear and improving production quality

Active Publication Date: 2020-03-27
合肥开比锐精机科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing crushing equipment has uneven feeding and seriously affects the crushing efficiency, the present invention provides a high-efficiency polysilicon and monocrystalline silicon uniform feeding screening crushing system and its method

Method used

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  • High-efficiency uniform feeding, sieving and crushing system for polysilicon and monocrystalline silicon and method thereof
  • High-efficiency uniform feeding, sieving and crushing system for polysilicon and monocrystalline silicon and method thereof
  • High-efficiency uniform feeding, sieving and crushing system for polysilicon and monocrystalline silicon and method thereof

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Experimental program
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Embodiment 1

[0055] see figure 1 , this embodiment provides a high-efficiency polysilicon and monocrystalline silicon uniform feeding screening and crushing system, which can screen and crush silicon materials, and includes a silo 1, an electronic valve 2, a feeder 3, a crushing Machine, accumulation detection device and control subsystem.

[0056] The bottom of the silo 1 is provided with an upper outlet 101 for storing silicon materials. In this embodiment, the silo 1 is funnel-shaped, which can be fixed by structures such as support frames. When loading silicon material into the silo 1, a layer of polyurethane anti-collision film can be coated on the inner wall of the silo 1, so that on the one hand, the silo 1 can be protected; Scratches will not pollute the silicon material, thus ensuring the purity of the silicon material.

[0057] The electronic valve 2 is installed on the material bin 1 and is used to open or close the upper discharge port 101 . The electronic valve 2 can adjus...

Embodiment 2

[0070] see Figure 4 as well as Figure 5 , this embodiment provides a high-efficiency polysilicon and single crystal silicon uniform feeding screening and crushing system, which adds a sealing ring 14 on the basis of embodiment 1, and the sealing ring 14 belongs to the composition structure of the feeder 3 . The sealing ring 14 is installed on the lower discharge port 8, and is located in the groove provided by the lower discharge port 8, and is used to seal the connection between the feeder 3 and the crusher.

[0071] In this embodiment, the sealing ring 14 includes a sealing shell 15 and a spring one 16 . The first spring 16 is arranged in the sealing case 15 and adheres to the inner wall of the sealing case 15 . Wherein, the sealing shell 15 is made of polyurethane material, and the spring one 16 is made of stainless steel. After the sealing ring 14 is installed, the spring one 16 will be subjected to outward tension, so that the sealing lip is close to the sealing groo...

Embodiment 3

[0073] see Image 6 , this embodiment provides a high-efficiency polycrystalline silicon and single crystal silicon uniform feeding screening and crushing system, which adds a buffer device 18 on the basis of embodiment 1 or embodiment 2, and the buffer device 18 belongs to the feeder 3 composition structure. The buffer device 18 is arranged between the screen cloth 6 and the feeding box 5 , and is used to provide elastic force for the screen cloth 6 .

[0074]In this embodiment, each buffer device 18 includes a base 19 , a second spring 20 and a washer 23 . Base 19 is installed on the feeding box 5. One end of spring two 20 is installed on base 19, and the other end is connected with spacer 23. The spacer 23 is movably installed on the spacer 23 and is used to support the screen cloth 6 . The buffer device 18 is utilized. The elastic force of the spring 20 can well buffer the force caused by the vibration, thereby improving the service life of the screen 6 .

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Abstract

The invention discloses a high-efficiency uniform feeding, sieving and crushing system for polysilicon and monocrystalline silicon and a method thereof. The system comprises a material cabin, a feeding machine, a crushing machine, an electronic valve, an accumulation amount detecting device and a control sub-system. The feeding machine comprises a feeding box, a vibrating motor and a screen mesh.The feeding box is provided with a box opening facing an upper discharging hole. One end of the screen mesh is positioned below the box opening; and the other end of the screen mesh faces a discharging end. The vibrating motor is used for moving a silicon material to the other end of the screen mesh in one direction to fall into a lower discharging hole. The accumulation amount detecting device isused for detecting the accumulation amount of the silicon material. The control sub-system is used for reducing the opening/closing frequency or opening/closing amplitude of the electronic valve whenthe accumulation amount is greater than a first preset accumulation amount, and increasing the opening/closing frequency or opening/closing amplitude of the electronic valve when the accumulation amount is smaller than a second preset accumulation amount. According to the high-efficiency uniform feeding, sieving and crushing system for the polysilicon and monocrystalline silicon and the method thereof, the silicon material uniformly falls into the crushing machine for crushing; the overall production efficiency of crushing is improved; the rejection rate of the silicon material is reduced; and the particle size of the finally crushed silicon material is more uniform.

Description

technical field [0001] The present invention relates to a crushing system in the technical field of silicon material crushing, in particular to a high-efficiency polysilicon and single crystal silicon uniform feeding screening crushing system, and also relates to the high-efficiency polysilicon and single crystal silicon uniform feeding screening crushing method of the system . Background technique [0002] Today, with the rapid development of the photovoltaic industry, the demand for polycrystalline silicon and monocrystalline silicon is increasing day by day. During the production process of polycrystalline silicon and monocrystalline silicon, silicon material rods or other bulk materials need to be crushed to the particle size required by the process. At the same time, during the crushing process of polysilicon, the mixing of iron and other metal elements is not allowed, and the purity of the crushed product is required to be <10ppba. Moreover, the crushing process ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C23/08B02C23/02B07B1/28B07B1/46B07B1/42
CPCB02C23/08B02C23/02B07B1/28B07B1/4609B07B1/42
Inventor 殷红飞余仲元凡家勇范菊娴
Owner 合肥开比锐精机科技有限公司
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