Discharging device for silicon rod in reduction furnace

Abstract

The invention discloses a discharging device for a silicon rod in a reduction furnace, and relates to the field of polycrystalline silicon production. The discharging device comprises a box body witha switch door; a storing mechanism used for placement of the silicon rod and a purging device used for purging the silicon rod are mounted in the box body; and a dust collection device is further mounted in the box body. The silicon rod can be directly placed on the storing mechanism, amorphous silicon, silica fume and other impurities on the surface of the silicon rod can be effectively blown away through a purging head, and thus influences of the amorphous silicon, the silica fume and other impurities on the quality of a silicon material are avoided.

Description

technical field [0001] The invention relates to the field of polysilicon production, in particular to a device for tapping silicon rods from a reduction furnace. Background technique [0002] With the development of the polysilicon industry, the technical level is becoming more and more mature, and the competition is becoming more and more fierce. Therefore, reducing costs and improving product quality are the goals pursued by every polysilicon production enterprise. At present, how to avoid external pollution while improving internal quality is a common difficulty. At the same time, it is also necessary to accelerate the pace of research and development and innovation of external pollution protection. [0003] At present, during the growth process of the polysilicon reduction furnace, some powdery amorphous silicon will be more or less produced in the reduction furnace, and adhere to the reduction furnace wall and the reduction furnace chassis. When the bell jar is opened, ...

AI Technical Summary

Problems solved by technology

[0003] At present, during the growth process of the polysilicon reduction furnace, some powdery amorphous silicon will be more or less produced in the reduction furnace, and adhere to the reduction furnace wall and the reduction furnace chassis. When the bell jar is opened, the reduction furnace wall The ash on it will more or less fall on the silicon rods. After the silicon rods are out of the furnace, the silicon rods with more adhered amorphous powder silicon are usually purged, and the others are directly mixed and loaded into the silicon rod car. In the next process, this process will not only cause secondary cross-contamination of silicon rods, but also greatly reduce the quality of silicon materials

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