Special-shaped light weight alumina insulating brick belongs to insulating brick. Heat insulation is the outstanding features, the light weight insulating alumina brick has the characteristics of common insulating brick, small pores are evenly distributed inside, which make the furnace wall with less heat dissipating and save more fuel. The lower volume density means lower heat storage, so the low density furnace wall material makes the effect better.
Description of Special-shaped Light Weight Alumina Insulaing Brick
Special-shaped light weight alumina insulating brick, the content of alumina oxide is above 48%, is a kind of light weight refractory material mainly made of mullite and glass phase or corundum brick. The volume density is 0.4～1.35g/cm3. The porosity is 66%～73%, the compression strength is 1～8MPa, good thermal resistance.
Light weight refractory brick is used in kiln, the heating and cooling of the furnace are both fast, and the cycle efficiency of the kiln will be higher. The using temperature of light weight insulating brick is 900℃～1650℃, can greatly improve the thermal efficiency of heat thermal equipment. According to realistic using situation to choose the suitable insulating brick. Along with the increase of thermal load in furnace, at the same time, the corresponding mechanical stress, chemical attack will some sort of reduce service life. Insulating refractory brick is as preferred insulation material of heat insulation.
Special-shaped alumina light weight alumina brick adopt high alumina clinker bauxite and add small amount of clay, after fine grinding, use the gas bubble method or mud form to pour and molding, burnt through 1300～1500℃. Sometimes, part of bauxite clinker can be placed by industrial alumina. It is used for the liner and insulation layer of furnace construction, and the part without high temperature melting material and erode. When it contacts with flame directly, the surface contact temperature can’t exceed 1350℃.
Special-shaped refractory bricks have many types. On the basis of different material, it can be divided into clay or high alumina special-shaped refractory brick, silica , magnesia and magnesia alumina special-shaped refractory brick.
If you have demand for special-shaped light weight alumina brick, welcome you contact with us, RongSheng Kiln Refractory Material Co., Ltd, we company produce and sell refractory for many years and specialized in making brand enterprise of refractory material industry.
