The operating principle of direct high-purity coal-fired hot blast stove is that the fuel is directly burned and the hot air is formed by high-purity treatment, while the material is directly touched and heated to dry or bake. The fuel consumption of this method is about half that of steam or other direct heaters. Therefore, without affecting the quality of drying products, direct high purity hot air can be used.
Fuels are solid fuels, such as coal and coke.
The high temperature burning gases obtained from the reactions of fuel incineration are further touched with the outside air, mixed at a certain temperature and then directly entered the drying room or baking room, touched with the dry material, heated and transpired water, and then obtained the boring products. In order to use the incineration reaction heat of these fuels, it is necessary to add a set of fuel incineration equipment. Such as: coal burner, oil burner, gas burner, etc.
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