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1. (WO2018103707) ADJUSTABLE SCREENING SYSTEM FOR SILICON RESIDUES

Pub. No.:    WO/2018/103707    International Application No.:    PCT/CN2017/115073
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Fri Dec 08 00:59:59 CET 2017
IPC: B07B 13/11
B07B 7/04
Applicants: CHENGDU SILICON TECHNOLOGY CO., LTD.
成都斯力康科技股份有限公司
Inventors: YANG, Shi
羊实
ZHOU, Xu
周旭
Title: ADJUSTABLE SCREENING SYSTEM FOR SILICON RESIDUES
Abstract:
An adjustable screening system for silicon residues, comprising two sealing plates (1) fixedly connected by means of a plurality of equal-height blocks (2) to form a frame with openings in the periphery. A flat plate (3) is provided on the opening of the bottom of the frame; one end of the flat plate (3) is connected to an arc-shaped plate (4); a blast nozzle (5) is further comprised and is connected to a high pressure gas storage tank (8) by means of a pipeline; a material conveyor belt (9) matching the flat plate (3) is further comprised. In the adjustable screening system for silicon residues, high pressure gas is rapidly sprayed out from the blast nozzle (5), and smashed mining slag is horizontally blown out from the flat plate (3), and enters a bending rail limited by the arc-shaped plate (4). After three to four times of smashing and sorting, pure silicon, which is about 30% of the silicon residues in weight; can be obtained, pure residues, which are about 40% in weight, are obtained, and silicon residue mixture powders, which are about 30% in weight, are left. Due to arrangement of a distributor (7), the system has multiple functions.