A CENTRIFUGE AND A CONTROL SYSTEM THEREFOR

摘要

A drilling mud system for separating solids from solids laden drilling mud, the system comprising a centrifuge (10) having a bowl (12) and a conveyor (18), an inlet (18a) for solids laden drilling mud to be introduced to the bowl (12), a solids discharge outlet (12c) and a drilling mud discharge outlet (19'), a bowl drive (24) for driving the bowl (12) and a conveyor drive (34) for driving the conveyor (18), the system further comprising at least one sensor and a control system (PM) measuring centrifuge performance with said at least one sensor, said control system (PM)storing an algorithm for determining optimum performance and said control system (PM): making a small evolutionary operation parameter change in a first direction; checking if the small evolutionary operation parameter change is within constraints; re-measure centrifuge performance, whereupon if the centrifuge performance improves, for making a further small evolutionary operation parameter change in said first direction and if the performance does not improve for making a small evolutionary operation parameter change in a second direction.