| 摘要 |
PURPOSE:To continuously perform efficient washing operation within a short time, by arranging a stirrer to the bottom part forming an inverted conical shape of a washing tank and introducing a washing solution into said tank from the bottom part and discharging the same from the upper part of said tank. CONSTITUTION:In washing a powdery particle, the powdery particle is introduced into a washing tank from an upper opening part 8 while a washing solution is introduced into a washing solution introducing chamber 5 from the washing solution introducing pipe 6 provided to the bottom part of said tank. This washing solution is raised while dispersed between rotating stirring blades 3 and raises and disperses the powdery particle in the washing tank 1 and, therefore, the powdery particle is washed through the continuous contact with the washing solution. The washing solution after contact is successively discharged from a washing solution discharge pipe 7 and the powdery particle after the completion of washing is discharged from the discharge pipe 12 of the bottom part along with the washing solution or discharged from the washing solution introducing pipe 6 when there is no discharge pipe. By this effective flow of the washing solution, efficient washing operation can be continuously performed while water is conserved.
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