April 24, 2022
Industrial furnace furnace shell temperature is high and low, the higher the temperature of the kiln skin temperature is higher, if you want to reduce the temperature of the kiln skin, we must improve the use of insulation materials, or thicker insulation layer.
Normally, insulation uses light clay brick and light fiber board, cotton, blanket more. But all are using fiber insulation materials do not use light clay brick, with light clay brick can not fiber insulation materials.
But if the kiln skin temperature requirements are low, it is necessary to do multi-layer insulation to reduce the degree of heat diffusion, reduce the temperature of the kiln skin.
Multi-layer insulation to do three layers, the first layer with 50mm thick light coating as the lining, the second layer with 50mm thick high purity fiberboard insulation, the third layer is made of 0.6 light clay brick body density as the lining insulation, so multi-layer insulation, the temperature of the kiln skin will be reduced a lot, under normal conditions of 1000℃ temperature, do three layers of insulation, The temperature of kiln skin will decrease by about 100℃.
After smearing the lining, the air tightness of the whole furnace lining is stronger and the heat dissipation speed is slowed down. Each layer of high purity fiberboard has a better heat reduction effect. In this way, the thickness of the entire insulation layer is 224mm. The thickening of the insulation layer slows down the heat speed, so that the heat will not be directly evacuated to the kiln skin through the kiln.
The temperature of the kiln skin is reduced a lot, while the air tightness is strong, the heat dissipation speed is slow, but also to ensure the internal temperature of the kiln lining, the internal temperature of the kiln lining lasts for a long time, but also to reduce the fuel problem of the heating up of the kiln body. Less fuel reduces the cost of production and use.
That is to say, with three layers of insulation daub, fiberboard, light clay brick to do the insulation layer, that is, reduce the temperature of the kiln skin, but also save fuel, it can be said that two birds with one stone to do the insulation method.