An agitator, a circulatory cleaning device attached to the agitator, and a circulatory line system comprising the circulatory cleaning device

摘要

An agitator able to mix and disperse a variety of fluids of various fluid volumes with different viscosities ranging from low to high, and having excellent, cleanability and improved cooling efficiency is provided. The agitator comprises a rotating shaft (3) extending vertically inside an agitating vessel (2), and a flat paddle blade 4 mounted on the rotating shaft (3). The flat paddle blade has a bottom flat paddle blade portion (4a) extending outwards from the bottom of the rotating shaft (3) and a rectangular upper flat paddle blade portion (4b) extending upward from an upper part of each side end of the bottom flat paddle blade portion (4a). The dimensional ratio of the blade diameter of the bottom flat paddle blade portion 4a to the inner diameter (a) of the agitating vessel 2 is from 0.6 to 0.9, and the dimensional ratio of the height of an upper flat paddle blade portion 4b to the height of the bottom flat paddle blade portion 4a is from 1 to 4.