CENTRIFUGE WITH AUTOMATIC SAMPLING AND CONTROL AND METHOD THEREOF

摘要

A centrifuge including a bowl, a bowl drive motor, a screw conveyor, a screw conveyor drive motor, a pump, a pump motor, a bowl VFD to drive the bowl drive motor, a conveyor VFD to drive the screw conveyor drive motor, a pump VFD to drive the pump drive motor, an analysis assembly and a computer electrically connected to the bowl VFD, the conveyor VFD, the pump VFD, and the analysis assembly. The analysis assembly is configured to automatically sample slurry pumped into the bowl and automatically transmit data, characterizing the slurry, to the computer. The computer is configured to calculate control schemes for the bowl VFD, the conveyor VFD, and the pump VFD using the data and, transmit control signals to the bowl VFD, the conveyor VFD and the pump VFD to operate the bowl VFD, the conveyor VFD and the pump VFD according to the control schemes.

主权项

1. A centrifuge for centrifuging a slurry, comprising:
a bowl driven by a bowl drive motor; a screw conveyor driven by a screw conveyor drive motor; a pump driven by a pump motor; a bowl variable frequency drive unit (VFD) operatively arranged to drive the bowl drive motor; a conveyor VFD operatively arranged to drive the screw conveyor drive motor; a pump VFD operatively arranged to drive the pump drive motor; a first analysis assembly connected to a first section of pipe connecting the pump and the bowl; and, at least one computer electrically connected to the bowl VFD, the conveyor VFD, the pump VFD, and the first analysis assembly, wherein:
the first analysis assembly is configured to:
automatically sample a slurry pumped through the first section of pipe; and,automatically transmit first data, characterizing the slurry, to the at least one computer; and,the at least one computer is configured to:
calculate respective control schemes for the bowl VFD, the conveyor VFD and the pump VFD using the first data; and,transmit respective control signals to the bowl VFD, the conveyor VFD and the pump VFD to operate the bowl VFD, the conveyor VFD and the pump VFD according to the respective control schemes.