Double centrifuge for highly viscous material

Details Double centrifuge for highly viscous material Double centrifuge for highly viscous material

1990-10-04

1994-04-05

Hornsby, Harvey C.

Imperforate bowl: centrifugal separators

Including plurality of separate and distinct bowls

Having bowls spaced along common axis of rotation

494 32, 494 35, 494 10, 494 44, B04B 300

Patent

active

053000137

ABSTRACT:
A method of processing a highly viscous material comprises the steps of spinning the material in a homogenizer to reduce it to a creamy fluent consistency, flowing the creamy material wholly by gravity down into an upper centrifuge stage, centrifuging the creamy material in the upper centrifuge stage into a solids fraction and a liquid fraction, flowing the solids fraction wholly by gravity down into a lower centrifuge stage, and centrifuging the solids fraction in the lower centrifuge stage. These steps can all take continuously with the material being fed in at one end and the solid and liquid fractions obtained at the opposite lower end. Prior to spinning the material a liquid is added to it to reduce its viscosity and increase its homogeneity. This liquid can be the recirculated liquid fraction obtained in the first centrifuge stage. In accordance with this invention the recirculated liquid fraction is heated to 40.degree. C. to 70.degree. C. before introducing it into the homogenizer.

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