Is alumina hollow effect of ball brick heat preservation how?

Alumina is hollow ball brick is the adiabatic and fireproof product that with alumina hollow ball makes for main raw material. It basically uses as the heat preservation thermal insulation of the liner of furnace of kiln of high temperature industry under 1800 ℃ and facilities of expensive tepid work. Alumina is hollow the aluminous content of ball brick is more than under 98%SiO2 content 0.5% , fe2O3 content is more than 0.2% , bulk density is 1.3~1.4g/cm3, apparent pore rate is 60~70% , compression intensity is not less than 9.8MPa, loading (0.2MPa) bate temperature is not less than 1700 ℃ , thermal conductance is 0.7~0.8W/(m.k) . Does hollow ball brick have alumina what advantage? Alumina is hollow ball brick is to have alumina hollow ball and alumina pink are main raw material, combine other bond, become through high temperature fire. Belong to superhigh temperature material a kind of energy-saving insulation material. To reducing weight of body of heater, transform structure, managing material, economic energy resources, all can obtain apparent effect. 1, use temperature is high: Can amount to 1750 degrees of above, thermal stability is good. Ratio of the heavy change that burn a line is small, use longer. 2, optimize a structure, reduce weight of body of heater: Use now high temperature resistant material belongs to density of bulk of heavy qualitative brick to be 2.6-3.0g/cm, and hollow ball brick has alumina only 1.1~1.5g/cm, same one stere bulk, hollow ball brick can reduce use alumina 1.1-1.9 ton weight. 3, managing material: Reach same use temperature, if use heavy qualitative brick its price and alumina are hollow ball brick price comparatives, and still need quite considerable heat-insulation layer fireproof material. If use alumina hollow ball brick, every stere can save 1.1-1.9 ton the use quantity of heavy qualitative brick, can save the fireproof insulation material of 80% more. Is alumina hollow effect of ball brick heat preservation how? Hollow ball has alumina apparent heat preservation is characteristic, coefficient of thermal conductivity is low, can have very good heat preservation effect, reduce quantity of heat to send out, improve thermal efficiency, have the objective of managing the sources of energy thereby. Energy-saving effect can amount to 30% above. Alumina is hollow ball and its goods are a kind of energy-saving and high temperature resistant, superior light qualitative fireproof material, extraordinary stability is used below all sorts of atmosphere. Apply at be on furnace of high temperature kiln especially. Hollow ball can be used at doing filling of heat insolation of high temperature, superhigh temperature, high temperature is fireproof concrete pledges collect expects gently, high temperature is pouring makings. Hollow ball brick can be used at high temperature energy-saving (> 30%) pours furnace of furnace of club of furnace of silk of blaze kiln, shuttle type kiln, molybdenum, tungsten, induction, nitrogen to change furnace to wait. To reducing weight of body of heater, transform structure, managing material, economic energy resources, all can obtain apparent effect. α , alumina pink is to choose high quality industry alumina to be raw material, use new-style high temperature to pour blaze kiln and production of scientific to calcine craft, it is artificial concentration, clear to classification, contain impurity little, change it is good to lead stability of tall, shrinkage, consistency. Fireproof material occurrence craze, fall off, easy how to wear away to do? Want to solve a problem thoroughly, need to be dug from germ, the analysis gives real reason, flourish Cheng Naicai is engaged in be able to bear or endure service of timber production, research and development is old, can solve all sorts of difficulty problems of liner of furnace of high temperature kiln, welcome broad new old friend to seek advice reach technical communication.