Ceramic fiber loose cotton is to melt high-purity clay clinker, alumina powder, silica powder, chromium sand and other raw materials at high temperature in an industrial electric furnace to form a fluid. Then use compressed air to spray or use a spinning machine to spin the filament into a fibrous shape, and collect the cotton through the cotton collector to form ceramic fiber cotton. Fiber cotton can be further processed into fiber blankets, boards, paper, cloth, ropes and other products. Ceramic fiber is a kind of high-efficiency thermal insulation material, which has the characteristics of light weight, high strength, oxidation resistance, low thermal conductivity, good flexibility, corrosion resistance, small heat capacity and sound insulation.