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1. WO2020095198 - US DEGREASING MANAGEMENT

Publication Number WO/2020/095198
Publication Date 14.05.2020
International Application No. PCT/IB2019/059490
International Filing Date 05.11.2019
IPC
B08B 3/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
08CLEANING
BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
3Cleaning by methods involving the use or presence of liquid or steam
04Cleaning involving contact with liquid
10with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity, by vibration
12by sonic or ultrasonic vibrations
C23G 3/02 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
3Apparatus for cleaning or pickling metallic material
02for cleaning wires, strips, filaments continuously
Applicants
  • ARCELORMITTAL [LU]/[LU]
Inventors
  • RICHET, Pierre
  • SPONEM, Florent
Agents
  • PLAISANT, Sophie
Priority Data
PCT/IB2018/05870706.11.2018IB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) US DEGREASING MANAGEMENT
(FR) GESTION DE DÉGRAISSAGE PAR ULTRASONS
Abstract
(EN)
The invention relates to a method for continuously cleaning a moving strip (S) in a cleaning installation comprising a tank (2) containing an aqueous solution (3), at least a roll (4) immerged in said aqueous solution for guiding said strip into said tank, at least an ultrasound emitting mean (5), means for feeding (6) an aqueous solution inside said tank, means for emptying (7) said tank, means for estimating (8) the aqueous solution level (9) in the tank, means for calculating (10), for each ultrasound emitting mean, its distance to the aqueous solution level and means for controlling (11) the power of the said at least one ultrasound emitting mean comprising the following steps, performed continuously: • - estimating the aqueous solution level in the tank, • - calculating for each ultrasound emitting mean its distance to the aqueous solution level, • - comparing for each ultrasound emitting mean its distance to the aqueous solution level to a determined threshold.
(FR)
L'invention concerne un procédé de nettoyage en continu d'une bande mobile (S) dans une installation de nettoyage comprenant un réservoir (2) contenant une solution aqueuse (3), au moins un rouleau (4) immergé dans ladite solution aqueuse pour guider ladite bande dans ledit réservoir, au moins un moyen d'émission d'ultrasons (5), des moyens d'alimentation (6) d'une solution aqueuse à l'intérieur dudit réservoir, des moyens de vidage (7) dudit réservoir, des moyens d'estimation (8) du niveau de solution aqueuse (9) dans le réservoir, des moyens de calcul (10), pour chaque moyen d'émission d'ultrasons, de sa distance jusqu'au niveau de solution aqueuse et des moyens de commande (11) de la puissance dudit au moins un moyen d'émission d'ultrasons comprenant les étapes suivantes, effectuées en continu : •-estimer le niveau de solution aqueuse dans le réservoir, •-calculer pour chaque moyen d'émission d'ultrasons sa distance jusqu'au niveau de solution aqueuse, •-comparer pour chaque moyen d'émission d'ultrasons sa distance au niveau de solution aqueuse à un seuil déterminé.
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