WEAR-RESISTANT EQUIPMENT FOR OPERATION WITH SLUDGE Russian patent published in 2019 - IPC C23C4/10 F04D1/00 F04D29/42 

FIELD: protective devices.

SUBSTANCE: invention relates to methods of protecting equipment for operation with sludge. Method of protecting equipment for operation with sludge involves identification of one or more types of wear events, which during operation is subject to inner surface of equipment for operation with sludge, evaluation of significance of each type of surface wear event, wherein types and significance of wear events are predicted by comparing wear degrees in different locations inside equipment, calculated using one or more computational fluid hydrodynamic models of sludge flow in equipment, outputting wear extent at different locations within equipment, and depositing on surface one or more thermally sprayed protective coating containing metal carbide or metal nitride, and erosion-resistant organic protective coating in those locations inside equipment, which are subject to wear events according to model. Besides, equipment for working with sludge and its components protected in compliance with proposed method are proposed.

EFFECT: invention is aimed at increasing the equipment service life.

24 cl, 21 dwg, 4 tbl