| 摘要 |
PROBLEM TO BE SOLVED: To efficiently and economically produce sponge-titanium particles containing little foreign matter mixed quantity. SOLUTION: The sponge-titanium particles having little foreign matter is produced by processing the following processes, that is, (a rough-crushing process) for processing the sponge-titanium block produced with Kroll process into small blocks with a cutter: (a pulverizing process) for processing the small blocks obtained by rough-crushing into the sponge-titanium particles: and (a foreign matter separation process with specific gravity sorting) for respectively recovering the product on the upstream side and the foreign matter on the downstream side in the inclining direction of a vibrating plate by conveying the sponge-titanium particles obtained by crushing onto the inclined porous vibrating plate and also, blowing up gas from each hole of the vibrating plate, and then, together with rubber pieces and wooden pieces, etc., the sponge-titanium thin pieces inevitably mixed on the sponge-titanium particles after crushing related to the cutting at the rough-crushing process, including the stuck material to the sponge-titanium particles, are effectively separated and removed from the sponge-titanium particles. COPYRIGHT: (C)2005,JPO&NCIPI
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