Control System for a Decanter Centrifuge

摘要

A torque sensing device capable of measuring the force exerted by a torque arm on a lever is positioned between the torque arm and the lever. The torque arm is connected to the pinion of a planetary gearbox for rotating the bowl and screw conveyer of a decanter centrifuge at different speeds. The torque sensing device measures the torque between the pinion gear and the planetary gearbox. The sensor can be connected to a controller which can reduce the flow of the liquid/solid mixture to the decanter centrifuge thereby/reducing the torque and avoiding substantial damage to the planetary gearbox.

主权项

1. A method of controlling the liquid/solid mixture flow rate to a decanter centrifuge, the decanter centrifuge including a planetary gearbox having a central pinion gear, a torque arm fixed to the pinion gear and a pivoted lever arm connected at one end to an over center spring mechanism and engaging the torque arm at a second portion comprising:
positioning a torque sensor between the torque arm fixed to the pinion gear and the second portion of the lever arm; measuring the torque force applied to the lever arm; and varying the flow rate of the liquid solid mixture to the decanter centrifuge in response to the force applied to the lever arm.