Rotor for increasing mixing efficiency in a medium consistency m

Details Rotor for increasing mixing efficiency in a medium consistency m Rotor for increasing mixing efficiency in a medium consistency m

1992-03-04

1993-11-23

Coe, Philip R.

Agitating

Stirrer within stationary mixing chamber

Rotatable stirrer

366171, 366172, 366307, 416223B, 162 57, 162243, B01F 700, B01F 504, D21C 714

Patent

active

052637743

ABSTRACT:
Medium consistency (e.g. about 5-18%) paper pulp is mixed with a treatment fluid by fluidizing them while subjecting them to a constantly changing shear field in radial and axial planes. This is accomplished by providing a mixer rotor having a constantly varying cross-section along a dimension of elongation. The rotor may comprise a body having an external surface simulating alternately oriented cone frustums along its axis of rotation, with vanes connected to the external surface and including portions following the surface contour. A disk may or may not be provided at the end of the body connected to a shaft. A first interior housing portion has a configuration mimicking that of the rotor, while a second housing portion defines a fluidization zone with the disk.

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International Technical Disclosures, ITD 1:9, vol. 1, No. 9, Jul. 25, 1983.

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