Agitating – Stirrer within stationary mixing chamber – Rotatable stirrer
Patent
1990-12-13
1992-09-08
Warden, Robert J.
Agitating
Stirrer within stationary mixing chamber
Rotatable stirrer
366325, 366295, 366328, 422135, 422137, 422193, 422229, B01F 702
Patent
active
051452553
ABSTRACT:
In order to improve mixing efficiency of highly viscous fluid, while structural simplicity being maintained, two types of stirring impellers are employed in a single stirring apparatus. One of such stirring impellers is a large flat impeller and the other is a slanted or screw-shaped impeller to cause an up-and-down flow. This principle is further utilized in a stirring tower type polymerization reaction apparatus which has an array of mixing areas, each of which corresponds to the stirring apparatus above, and partitions between the mixing areas. The partitions are disposed so that the temperature of reaction can be controlled easily. Undesirable effects such as "dead space", space in which flow is insufficient, and the attachment of gelled material to the rotational shaft can be avoided while rather obvious, but no less important, advantages of efficient and uniform mixing, etc., are secured.
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Weber, A. P.; "Selecting Turbine Agitators"; Chemical Engineering, Dec. 7, 1964, pp. 169-174.
Kobayashi Kazuto
Mori Hidetaro
Ogasawara Hiroaki
Omoto Setsuo
Shimada Takafumi
Collins Laura E.
Mitsubishi Jukogoyo Kabushiki Kaisha
Warden Robert J.
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