Patent ID: 6296774
Filing Date: 2001-10-02
Classification: B04B

Abstract:
A method for controlling a centrifugal machine comprising the steps of:opening a gate of said centrifugal machine to an initial one of a plurality of gate positions between a full closed position and a full open position for entry of charge material into a rotating centrifugal basket of said centrifugal machine;measuring a charge wall thickness forming along inner sidewalls of said rotating centrifugal basket;determining a fill rate at which said charge material enters said rotating centrifugal basket;comparing said determined fill rate to a desired fill rate;opening said gate towards its full open position if said fill rate is less than said desired fill rate;closing said gate towards its full closed position if said fill rate is greater than said desired fill rate so that charge material enters said rotating centrifugal basket at substantially said desired fill rate and controlling the closure of said gate to gradually approach a desired minimum flow rate.