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Degumming device for crystalline silicon waste recovery

A waste recycling and crystalline silicon technology, applied in the fields of silicon compounds, inorganic chemistry, non-metallic elements, etc., can solve the problems of substandard purity of polycrystalline silicon ingots, inability to produce semiconductor materials, and the quality of degumming can not meet the requirements. The effect of heat dissipation, reducing heat dissipation, and quick discharge

Inactive Publication Date: 2018-09-11
DONGGUAN UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] Monocrystalline waste and polycrystalline waste are different from other raw materials. There are residual UV glue and adhesive strips on the waste. If they are not completely removed, the purity of polycrystalline silicon ingots will not meet the standard. Currently, the existing paracrystalline silicon waste is being deglued. In the current technology, the quality of its degumming is far from meeting the requirements, so that this kind of low-purity silicon cannot be used to produce semiconductor materials, and can only be used to prepare alloys with special properties, and its value is far reduced.

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  • Degumming device for crystalline silicon waste recovery
  • Degumming device for crystalline silicon waste recovery
  • Degumming device for crystalline silicon waste recovery

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Embodiment Construction

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. .

[0032] Such as Figure 1-Figure 10 As shown, the specific structure of the present invention is as follows: comprising an arc-shaped upper cover 2, the lower end of the upper cover 2 is provided with a body 1, and it is characterized in that a cleaning cylinder 3 and a mounting frame 20 are arranged in the body 1 to separate the body 1 It is a clean room 7, a wet degumming chamber 8 and a combustion degumming chamber 9, the wet degumming chamber 8 is provided with a degumming liquid, and the bottom of the burning degumming chamber 9 is provided with a burner 39; the body The upper end of 1 is provided...

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Abstract

The invention discloses a degumming device for crystalline silicon waste recovery. The device comprises an arc-shaped upper cover and a machine body, the machine body is internally provided with a cleaning cylinder and a mounting frame, the machine body is divided into a purification chamber, a wet degumming chamber and a combustion degumming chamber, the wet degumming chamber is internally provided with degumming liquid, and a combustor is arranged at the bottom of the combustion degumming chamber. Accordingly, aiming at the problems, the degumming device for crystalline silicon waste recovery is provided; by means of water washing, the phenomenon that dust contaminates a glue solution is prevented, and in order to prevent the phenomenon that the degumming quality of the solution is poor,by means of drying and combustion, the dugumming efficiency is guaranteed; waste liquid of the dust meets the recycling requirements through purification.

Description

technical field [0001] The invention belongs to the field of recycling crystalline silicon waste, in particular to a degumming device for recycling crystalline silicon waste. Background technique [0002] After mankind entered the 21st century, with the rapid development of the semiconductor industry, high-purity crystalline silicon materials have been widely used. In the process of making chips, often due to unqualified quality or crystalline silicon waste generated during the cutting process, if the The comprehensive recycling of these wastes will reduce environmental pollution and improve energy utilization, which is of great significance to alleviating the shortage of monocrystalline silicon and polycrystalline silicon in my country and reducing imports. [0003] Monocrystalline waste and polycrystalline waste are different from other raw materials. There are residual UV glue and adhesive strips on the waste. If they are not completely removed, the purity of polycrystalli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/037
CPCC01B33/037
Inventor 邓君孙振忠李川陈海彬
Owner DONGGUAN UNIV OF TECH
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