Ceramic honeycomb heat accumulator, also known as high temperature combustion heat accumulator, is a key part of HTAC (high temperature air combustion) technology, and has been applicable in metallurgical industry furnace, like step wedge furnace, heat treatment furnace, forging furnace, melting furnace, radiant tube combustion, lifting furnace, hot blast furnace; in construction industry, applicable in all types of ceramic furnace and glasses furnace; petrochemical industry, applicable in all types of tube heating furnace, pyrolyzer and other industrial furnaces.