Clean isolation method between dust removal equipment and granular silicon product

Abstract

The invention relates to the technical field of clean isolation between dust removal equipment and a particle silicon product, in particular to a clean isolation method between dust removal equipment and a particle silicon product, which comprises the following steps: customizing an isolation layer pouring mold according to the size of the inner surface of the dust removal equipment; the dust removal equipment is subjected to finish machining, weld joint polishing and turning; spraying a wear-resistant layer and a clean layer of the dust removal equipment in an isolated manner, and then polishing; high-purity polyurethane pouring is conducted on the cylinder body; then putting into an oven to bake; and trial assembly is carried out according to a processing drawing. The dust removal equipment comprises a driving motor, a speed reducer, a barrel and a supporting seat, the barrel comprises an upper barrel body and a lower barrel body, and the upper barrel body and the lower barrel body are connected through a connecting mechanism. According to the invention, the polyurethane coating treatment is carried out on the inner surface of the dust removal equipment so as to isolate the direct contact between granular silicon and the metal surface and avoid the direct degradation of the quality of the granular silicon, and meanwhile, the isolating layer is made of high-purity polyurethane, so that the pollution caused by introduction of other impurities can be effectively avoided.