Mixing equipment and methods

Details Mixing equipment and methods Mixing equipment and methods

1988-04-25

1990-07-17

Hornsby, Harvey C.

Agitating

Stirrer within stationary mixing chamber

Rotatable stirrer

366314, 366325, 366347, 366605, B01F 704, B01F 718, B01F 1500

Patent

active

049417525

ABSTRACT:
Improved mixing equipment of the wall-baffled, cylindrical, mixing-vessel type is provided. The novel baffles employed have a uniform cross-sectional form corresponding generally to a small geometric segment of a circle, the radius of which circle is substantially equal to that of the inner wall of said mixing vessel. A plurality (e.g., 2 to 4) of such baffles mounted at uniformly spaced locations around the periphery of said inner wall are employed together with a concentrically located, multi-bladed impeller capable of providing good axial and radial mixing within said vessel.
The subject mixing equipment can deliver outstanding performance in terms of speed and completeness of mixing, as well as economy in power consumption and peak power requirements. Results are especially noteworthy when the equipment is used to mix chemical reagents (gaseous or liquid) with thick, non-Newtonian suspensions of solids and liquids; e.g., wet wood pulps and similar compositions containing fine, fibrous solid matter.

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July 1986, Tappi Journal, pp. 84-88, article by D. W. Reeve and P. F. Earl.

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