At present, fireproof ceramic fiberboard and ceramic fiber blanket are all made of lightweight heat insulating plugs. There are many kinds of materials, complex construction procedures, large daily labor consumption and difficult to control the quality. Therefore, the selection of new insulation lining materials and improvement of construction technology are the key to improve the construction quality and technical level of furnace lining projects such as heating furnaces and converter furnaces. At present, ceramic fiber blankets and ceramic fiber modules are mostly used.