High Alumina Refractory Brick Of The Structural Device

The alumina recycle roasting furnace is used to calcine aluminum hydroxide from a conical cyclone, a venturi dryer, a boiling roaster, a feed screw, a fluidized cooler, High Alumina Refractory Brick a circulating bed, a discharge chute, Duct and flue. The shape of the equipment is basically cylindrical, the maximum equipment diameter is 5.8m and the height is 32m. The equipment shell is welded by steel plate. The lining is made of unshaped refractory, refractory brick, calcium silicate board and refractory fiber. Fixed, High Alumina Refractory Brick the entire device between the various devices connected to form a sealed, the overall structure of a strong device

Kyanite concentrate: alumina greater than 56%, SiO2 40%, Fe2O3 0.5%, Na2O + K20 less than 0.3%. The main physical and chemical indicators of the development of mullite light brick is Al2O3 70%, bulk density 0.8 ~ 1.0g / cm3, thermal conductivity (350 degrees Celsius) 0.25w / (m.k). High Alumina Refractory Brick The use of temperature can reach 1550 degrees Celsius. Refractory brick manufacturers to sillimanite, kyanite concentrate as the main raw material, with the foam developed a sillimanite - kyanite light brick. High Alumina Refractory Brick Sillimanite and kyanite concentrate, Al2O3 content of not less than 57%, Fe2O3 less than 1.5% or 1.2% to 1.5%, concentrate containing sillimanite or kyanite mineral is not less than 90%, 1500 degrees Celsius , High Alumina Refractory Brick To obtain the bulk density of less than 0.8g / cm3, room temperature compressive strength of about 4.3MPa products. The product is closely related to the factors such as the addition of sillimanite, kyanite concentrate, foam mud, calcination temperature and so on.

High temperature insulation refractory materials, the use of temperature over 1200 degrees Celsius, such as light corundum brick, high temperature mullite insulation brick. Industrial furnace on the use of insulation refractory advantages, one is to save energy, generally save 2/5 ~ 3/5; the second is to reduce the weight of the furnace, High Alumina Refractory Brick simplify the kiln structure, reduce the ambient temperature, improve working conditions; Is due to the furnace can be rapid heating and cooling, High Alumina Refractory Brick improve equipment production efficiency. However, the porosity of lightweight refractory materials is large, the organization is loose and the slag resistance is checked. The slag is quickly invaded into the pores of the brick body and is broken and can not be used for direct contact with slag and liquid metal parts. However, High Alumina Refractory Brick mullite light brick developed with kyanite raw materials can be directly exposed to flame, high temperature, high strength, used in cracking furnace, hot air furnace, ceramic roller kiln, electric porcelain drawer kiln, High Alumina Refractory Brick glass crucible and a variety of electric furnace lining , Petrochemical industry gasifier lining.