The ceramic fiber module can be divided into the following types:
The module, including folding block, block, block, slice sparrow vacuum forming block. Because of the different fabrication methods and crystal structure of polycrystalline mullite fiber, the fiber length is shorter and the softness is poor. It is impossible to make a large module, which causes the polycrystalline fiber to be unable to be used in a large scale. Nowadays, polycrystalline fibers are mostly used for sticking on the surface of castables or firebrick walls and roof. The use of polycrystalline fiber blocks can effectively reduce the temperature of the outer wall of the furnace and reduce the heat loss of the furnace wall.