ArcelorMittal S.A.
ULTRASOUND DEGREASING MANAGEMENT

Abstract:

A method for continuously cleaning a moving strip in a cleaning installation including a tank containing an aqueous solution, at least a roll immerged in the aqueous solution for guiding the strip into the tank, at least an ultrasound emitter a feed for feeding an aqueous solution inside the tank, a tank emptier for emptying the tank, an aqueous solution estimator for estimating the aqueous solution level in the tank, a distance calculator for calculating, for each ultrasound emitter, its distance to the aqueous solution level and a power controller for controlling the power of the at least one ultrasound emitter including the following steps, performed continuously: --estimating the aqueous solution level in the tank, --calculating for each ultrasound emitter its distance to the aqueous solution level, --comparing for each ultrasound emitter its distance to the aqueous solution level to a determined threshold.