Thermal Load Dynamics of Blast Furnace Coolers.

The behavior of the blast furnace elements exposed to thermal shocks, in particular coolers, has been investigated. It has been found that the temperature of the cooler wall, when in contact with liquid slag, does not depend on the wall thickness but only on the physical properties of the materials in contact. The intensity of the maximum thermal flow and, as a result, the permanent cooling effect is practically independent of the wall thickness and, in the range from 20 to 100 degree C, of the cooling water temperature. The cooler's thermal inertia is proportional to the square of its thickness.