METHOD OF CLEANING CHEMICAL EQUIPMENT SURFACES FROM SLUDGES CONTAINING PLATINUM GROUP METALS

摘要

FIELD: chemical equipment. SUBSTANCE: surfaces are subjected to machining with cutting tools whose main working motion is rotary and/or coincides with direction of machined surface. Prior to machining of surface with cutting tool, noncontrolled circulation of air streams is eliminated. Surfaces are machined with cutting tool after forming directional flow of air medium at surface to be machined. EFFECT: increased mass of removed sludges, improved quality of surface after machining, enhanced labour safety. 7 cl, 1 tbl