▎ 摘　　要

NOVELTY - The utility model claims a composite filter material for high temperature and high corrosion flue gas dust removing of coal burning boiler, copper oxide powder filler layer, the lower end is provided with a flame-retardant needled-punched felt composite fibre base cloth layer, macromolecule polypropylene fibre layer, set on the lower end of the flame-retardant needled-punched felt composite fibre base cloth layer, high density glass fibre base cloth layer, set at the lower end of the high molecular polypropylene fibre layer, a graphene oxide layer, set at the lower end of the high density glass fibre base cloth layer, a polyimide fibre layer, set on the lower end of the graphene oxide layer. The composite filter material for high temperature and high corrosion flue gas dust removing of coal burning boiler is provided with a copper oxide powder filler layer, polyimide fibre layer and flame-retardant needled-punched felt composite fibre base cloth layer, the copper oxide powder filler layer has good corrosion resistance, the flame-retardant needled-punched felt composite fibre base cloth layer has good flame retardance, the polyimide fibre layer has good high temperature resistance, so that the filter material has corrosion resistance, flame retardance and high temperature resistance, the function is more, the application range is wide.