The temperature of kiln furnace is many degrees 1700 higher, even heat preservation heat proof quality is good, use tall aluminium to get together light with Molaishi light cannot have satisfied use requirement, can use flourish Cheng Naicai 0.85 exceed light qualitative alumina hollow ball brick, coefficient of thermal conductivity has 0.26 only, can satisfy high temperature and adiabatic requirement.
relatively at traditional alumina hollow ball brick, my company produces exceed light qualitative alumina hollow ball brick has the following characteristic
1, bulk density is low, density of bulk of hollow ball brick is alumina of ％ of traditional 99 at least 1.5g/cm3, can reduce weight of body of heater adequately at traditional product relatively, managing material, save the sources of energy, save cost;
2, relatively at 1.5g/cm3 of traditional bulk density, the alumina of 99 ％ of Al2O3 ≥ is hollow ball brick, hot brace up stability is good;
3, coefficient of thermal conductivity is low, have traditional product only 30% , 1.5g/cm3 of traditional bulk density, the alumina of 99 ％ of Al2O3 ≥ is hollow ball brick its 400 Celsius heat up coefficient of thermal conductivity to be 0.78w/(m · K) , and 400 Celsius of my company heat up coefficient of thermal conductivity to be 0.26w/(m · K) , effect of its heat preservation is 3 times traditional, same furnace layer ply can make cold face temperature lower, more energy-saving, what perhaps say to be able to do heat-insulation layer is thinner;
4, can use the working layer in kiln furnace directly, erode to what the fluorine in furnace of kiln of material of to calcine positive pole changes hydrogen have stronger counteractive capacity.
With effect of heat preservation of which kinds of brick is many degrees of 1700 high temperature good? With 0.85 exceed light qualitative alumina hollow ball brick, coefficient of thermal conductivity has 0.26 only, can satisfy high temperature and adiabatic requirement.
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