Corundum mullite ceramic is a high-performance refractory material with various excellent technical parameters. Corundum mullite ceramics have high refractoriness and high load softening temperature, and can withstand high temperatures up to 1450 ℃. Corundum mullite ceramics have wide applications in high-temperature industry, chemical industry, metallurgy and other fields, such as high-temperature kiln lining, gasification furnace, conversion furnace and other equipment.