Method for controlling a drum debarker

Abstract

The present invention relates to a method controlling a drum debarker by way of using the drum weighing information in the control of the drum debarking process. The method comprises the steps of determining the weight of the contents in the drum determining the filling degree of the debarking drum determining the average density of the log bunch tumbling in the debarking drum from drum weighing information and drum filling degree information, and determining a target value for the log retention time or debarking work in the debarking drum. Based on the information thus obtained, at least one following variables is controlled: the drum rotating speed, discharge rate of logs from the drum and infeed rate of logs into the drum so as to achieve the desired target value for the log retention time or debarking work in the debarking drum.

Dependencies are inferred from the claim text.