Silicon core furnace repeatedly pulling multiple silicon cores in one heat

Abstract

The invention discloses a silicon core furnace repeatedly pulling multiple silicon cores in one heat. A lower transmission device and a water cooling device are arranged in a rack, a lower furnace chamber and a slot way pulley are arranged on the rack, the slot way pulley is provided with a high frequency slot way, the lower furnace chamber is internally provided with an air charging device, a high frequency electrode and induction heating assembly and an evacuator, and the high frequency electrode and induction heating assembly is connected with the high frequency slot way; and the lower furnace chamber is communicated with the upper furnace chamber, guide steel wires are arranged in the lower furnace chamber and the upper furnace chamber and run through the lower furnace chamber and the upper furnace chamber from top to bottom, a guide frame is arranged on the guide steel wire and is provided with a seed card head seat and a seed card head, the upper end of the upper furnace chamber is provided with a seed unloading and turnplate dividing device, an upper transmission device is arranged above the upper furnace chamber, a transition assistant chamber is arranged between the upper furnace chamber and the upper transmission device, and the upper transmission device is connected with the seed card head seat by a flexible shaft. The silicon core furnace in the invention can realize broaching of 15-18 silicon cores in one heat, improves production efficiency of silicon cores, and lowers cost for producing polysilicon.

Description

Technical field [0001] The invention belongs to the technical field of the photovoltaic industry, and relates to a device for growing a polysilicon carrier-silicon core in a reduction furnace in the process of producing polysilicon by using an improved Siemens method, and specifically relates to a silicon core that draws multiple silicon cores multiple times in one heat furnace. Background technique [0002] With the global consensus on green energy, the photovoltaic industry has developed rapidly. As the upstream product in the photovoltaic industry chain, polysilicon is in short supply. Powerful commercial giants at home and abroad have invested heavily in the polysilicon industry, and the scale of development is increasing. The core furnace is an important link in the polysilicon production chain, and the demand is increasing. [0003] At present, the silicon core furnaces that are widely used can only draw one silicon core at a time, and only 4-6 silicon cores can be drawn in ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a silicon core furnace that draws multiple silicon cores multiple times in one heat, which solves the problems of the existing silicon core furnace with low output per heat and huge consumption of manpower, material resources and energy

Images