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Process and apparatus for the treatment of suspensions

  • US 4,085,888 A
  • Filed: 11/18/1976
  • Issued: 04/25/1978
  • Est. Priority Date: 11/18/1975
  • Status: Expired due to Term
First Claim
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1. In a solid-shell screw-type conveyor centrifuge system, the centrifuge having a screw which rotates at a differential speed with respect to the shell, one of the shell and the screw being coupled to a drive mechanism and the other of the shell and screw being rotated by means of a hydraulic motor, the improvement comprising:

  • means for sensing an accumulation of solid matter in conveying channels of the screw, means for comparing the sensed accumulation of solid matter with a desired optimum accumulation of solid matter, and means for controlling the differential speed between the shell and the screw in response to a signal from said comparing means such that the differential speed is increased upon an accumulation of solid matter above the desired optimum value until such time as the accumulation of solid matter returns to the desired optimum accumulation of solid matter.

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