Polycrystalline silicon ingot overturning device

Abstract

The invention discloses a polycrystalline silicon ingot overturning device, comprising a bottom supporting part and an overturning box which is erected on the bottom supporting part and is used for loading a polycrystalline silicon ingot, wherein the bottom supporting part comprises two oppositely-arranged fixing bottom plates and two supporting columns which are respectively placed on the fixing bottom plates; the overturning box is erected between the upper ends of the two supporting columns; the overturning box comprises an outer frame surrounding the periphery, and at least one upper transverse strip and at least one lower transverse strip; and at least one upper transverse strip and at least one lower transverse strip are arranged above and below the outer frame and are used for blocking the polycrystalline silicon ingot placed in the outer frame. The polycrystalline silicon ingot overturning device disclosed by the invention has a simple structure, is easy to machine and manufacture and is convenient to use; and the polycrystalline silicon ingot overturning device can rapidly, conveniently and safely overturn the polycrystalline silicon ingot and solves the problem in the prior art that the polycrystalline silicon ingot is difficult to overturn.

Description

technical field [0001] The invention belongs to the field of processing solar-grade semiconductor polysilicon wafers, and in particular is provided with a turning device for polysilicon ingots. Background technique [0002] With the rapid development of integrated circuits and photovoltaic industries, silicon material processing technology has also received more and more attention. Silicon material can be made into monocrystalline silicon or polycrystalline silicon, and monocrystalline silicon and polycrystalline silicon play a huge role in solar energy utilization. [0003] At present, the surface treatment of polysilicon ingots is mainly carried out by overall sandblasting and grinding. During the sandblasting and grinding process, the polysilicon ingots need to be turned over to ensure that all surfaces of the polysilicon ingots, including the bottom and sides, are polished. Since the weight of the polycrystalline silicon ingot is between 420 and 450 kg, there is no spec...

AI Technical Summary

Problems solved by technology

Since the weight of the polycrystalline silicon ingot is between 420 and 450 kg, there is no special tool for turning the polycrystalline silicon ingot. At present, the silicon ingot can only be fixed with straps and lifted from the horizontal state to the vertical state. Slowly hoist the silicon ingot to a flat state with the bottom of the ingot facing upwards. The operation time for turning over a silicon ingot is more than 15 minutes, and the weight of the silicon ingot itself is relatively heavy during the turning process, so there is a big safety hazard

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