Patent ID: 6033187
Filing Date: 2000-03-07
Classification: F04D

Abstract:
A method for controlling the operation of a slurry pumping system that includes a slurry pump, a motor in driving relationship with the pump, and a slurry pipeline system for receiving and directing the slurry pumped by the pump from a position in the pipeline adjacent the pump to a position in the pipeline remote from the pump, said method comprising:determining the instantaneous output pressure of the slurry at the position adjacent the pump at a predetermined time;determining the instantaneous pressure of the slurry in the pipeline at the remote position at the same predetermined time;comparing the determined instantaneous pressures of the slurry at both positions in the pipeline; andvarying the performance of the pump to keep the pressure of the slurry at the position adjacent the pump in substantially stable equilibrium with the pressure of the slurry at the remote position in the pipeline.