POWDER MIXING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a powder mixing apparatus which can homogenize even a mixture in which a large amount of powder is added with only a small amount of another kind of powder. SOLUTION: The upper part of the second hopper-shaped tank 32 is made to communicate with the bottom part of the first tank 31 through piping 34 with a butterfly type intermediate valve 33. The bottom part of the second tank 32 is made to communicate with the upper part of the first tank 31 by piping 36 with a rotary valve 35 and piping 38 for pneumatic transportation with a valve 37. Powder is mixed by being circulated between the tanks 31, 32.