Glass production is a high-temperature operation. Commonly used refractory materials in glass melting furnaces are mainly divided into four categories: sintered refractory materials, unshaped refractory materials and insulating refractory materials. Sintered refractory materials are important supporting refractory materials widely used in melting furnaces. Commonly used sintered refractory materials include silica bricks, alkaline bricks, zircon bricks, zirconium mullite bricks, mullite bricks, sillimanite bricks, high alumina bricks, clay bricks, etc. Commonly used heat-insulating refractory materials in glass melting furnaces include lightweight heat-insulating bricks, ceramic fiber heat-insulating board, heat insulating(lightweight)castables, heat-insulating coatings, etc.