Rotating stirring device

Details Rotating stirring device Rotating stirring device

1994-02-14

1995-10-24

Scherbel, David A.

Agitating

Stirrer within stationary mixing chamber

Rotatable stirrer

366302, B01F 718

Patent

active

054604478

ABSTRACT:
A rotating stirring device, particularly for mixing heterogeneous systems in mechanical stirred reactors, is fit to be joined to a drive shaft coaxial with respect to the device rotation axis. The device includes a plurality of extended and substantially C-shaped stirring elements symmetrically arranged with respect to the rotation axis and joined to each other at respective ends corresponding with the rotation axis. Such a device permits a very efficient material exchange among different phases to be obtained and to remain substantially constant with an increase in the volume of the mass being stirred. The device is also characterized by a high mixing homogeneity and particularly low shear stress values.

REFERENCES:
patent: 359645 (1887-03-01), Sullivan
patent: 2610432 (1952-09-01), Ambrose
patent: 3342460 (1967-09-01), Bolde
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patent: 4264215 (1981-04-01), Nunlist
"Advances in Chemical Engineering" Academic Press, Inc., vol. 17 (1992), pp. 4-9.
"Advances in Chemical Engineering", vol. 17, pp. 5-8, Academic Press (1992).
Y. Imai, H. Takei and M. Matsumura "Biotechnology an Bioengineering", vol. XXIX, pp. 982-993 (1987).

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