| 摘要 |
PURPOSE:To enable uniform mixing by fixing a screw blade to a vertical rotating shaft with a supporting material wherein the blade is wound helically around the rotating shaft at intervals between the blade and rotating shaft, and inclining the blade surface of the screw blade downward toward the rotating shaft. CONSTITUTION:A screw blade 12 which is wound helically around a vertically provided rotating shaft 11 at intervals between the blade and the rotating shaft is fixed to shaft 11 with a supporting material 15, and the blade surface 12a of the screw blade is inclined downward toward the shaft 11. Namely, the contents incorporated in a stirring vessel 13 are mixed and stirred uniformly without accompanying adhesion of the contents of the surface of vessel wall and the formation of mud ball by moving the contents upward along the wall surface and sliding down them between the screw blade and the rotating shaft and by stirring them in peripheral directions. |
