Automatic slag smashing mechanical arm for smelting polycrystalline silicon

Abstract

The invention discloses an automatic slag smashing mechanical arm for smelting polycrystalline silicon. The automatic slag smashing mechanical arm comprises a bottom plate and a smashing pot which isarranged on the top of the bottom plate, wherein supports with U-shaped structures are welded to the two sides of the top part of the bottom plate; a base positioned on the top of the bottom plate ismounted at the bottom of the smashing pot; the two sides of the base are provided with slantwise-arranged guiding slots; one side, mutually away from each other, of the two groups of guiding slots isconnected with a corresponding push block having a trapezoidal structure; a cover plate which is connected with the supports in a sliding manner and has a circular arc structure is mounted on the topof the smashing pot; a guiding plate which is sleeved with the top parts of the supports in a sliding manner and has a U-shaped structure is mounted on the top of the cover plate; a sleeve which is movably sleeved with the cover plate is fixedly sleeved with the middle position of the top part of the guiding plate; an inner ring of the sleeve is movably sleeved with a rotating shaft. The automaticslag smashing mechanical arm disclosed by the invention has the advantages of simple structure, convenience and quickness; by utilizing a first smashing ball and a second smashing ball, materials inthe smashing pot can be smashed in manners of rotation and up-down swinging, so that polycrystalline silicon slag materials are quickly pulverized, and sputtering of the raw materials during smashingis avoided.

Description

technical field [0001] The invention relates to the technical field of mechanical arms, in particular to an automatic slagging mechanical arm for polysilicon smelting. Background technique [0002] Polycrystalline silicon (polycrystalline silicon) has a gray metallic luster and a density of 2.32-2.34g / cm3. The melting point is 1410°C. The boiling point is 2355°C. Soluble in the mixed acid of hydrofluoric acid and nitric acid, insoluble in water, nitric acid and hydrochloric acid. The hardness is between germanium and quartz, brittle at room temperature and easy to break when cut. It has ductility when heated above 800°C, and it shows obvious deformation at 1300°C. It is inactive at room temperature, and reacts with oxygen, nitrogen, sulfur, etc. at high temperature. In the high-temperature molten state, it has great chemical activity and can interact with almost any material. It has semiconductor properties and is an extremely important excellent semiconductor material...

AI Technical Summary

Problems solved by technology

It is obtained by chlorination of dry silicon powder and dry hydrogen chloride gas under certain conditions, and then condensed, rectified, and reduced. When producing polysilicon, it is necessary to slag. Traditional slag equipment is inconvenient to use and has low efficiency. This requires a polysilicon smelting automatic slagging mechanical arm

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