Silicon Metal Powder Grinding Out

Specification

Silicon block as raw material to produce silicon metal powder in many ways, of which the common Raymond method, roller method, disc milling method and punch spinning method, from the principle of powdering, the first three are extrusion crushing, the latter is impact crushing. Silicon powder obtained from different powdering methods, its microstructure, specific surface area, particle size distribution and surface oxidation and other aspects of the technical parameters are not the same, the reactivity of the metal silicon powder naturally also makes a difference. Therefore, it is necessary to select the appropriate silicon powder production process and device.

Vertical mill of silicon metal powder production process: silicon block after drying, crushing into the vertical mill, grinding silicon powder is circulating airflow out of the collection, collected by the collector, collected under the powder by the vibrating screen sieve, screen coarse particles back to the mill, sieve fine particles into the finished product warehouse. Most of the dusty gas discharged from the collector is circulated, and a small portion of the dusty gas is discharged directly into the air. The main equipment of this process includes vertical mill; collector; centrifugal fan; vibrating screen.

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