Cleaning method for solvent type coating conveying system

• Main Authors: SHI YONGLIANG, LUO QIU, ZHANG ENMING, LIU YANPING, LEI JINGQIN, FENG CHANGBO, TAN CAIMEI, LIU CONGLIN, HUANG YONG
• Format: Patent
• Language: Chinese; English
• Published: 04.11.2022
• Subjects: CLEANING; CLEANING IN GENERAL; PERFORMING OPERATIONS; PREVENTION OF FOULING IN GENERAL; TRANSPORTING

The invention discloses a cleaning method for a solvent type coating conveying system. The method comprises the steps that a diluent is added into a to-be-cleaned system, the to-be-cleaned system is cleaned, the diluent in the to-be-cleaned system is discharged, an alkaline solvent is added into the to-be-cleaned system, the to-be-cleaned system is cleaned, the alkaline solvent in the to-be-cleaned system is discharged, and a hydrophilic solvent is added into the to-be-cleaned system; the to-be-cleaned system is cleaned, the hydrophilic solvent in the to-be-cleaned system is discharged, a diluent is added into the to-be-cleaned system, and the to-be-cleaned system is cleaned; the solvent type coating conveying system to be cleaned is cleaned through the diluent, the alkaline solvent and the hydrophilic solvent, so that residual solvent type coating accumulated paint and slag in the system to be cleaned are cleaned away, and the problems that the solvent type coating conveying system is blocked due to accumula