Review of methods and means of the process of heat loss regeneration through the lining of a high-temperature technological furnace
A modern metallurgical enterprise with a full cycle in terms of extracting iron from ores consumes more than 2/3 of the thermal energy produced with the help of primary natural energy resources. It is here that the main reserve of energy conservation is concentrated. Currently, in ferrous metallurgy, the most promising direction is considered to be the liquid-phase reduction of iron from ores, the distinctive feature of which is the possibility of removing the ore enrichment stage from the technological chain of pig iron production, as well as high specific productivity. More and more attention is being paid to the environmental side of pig iron production, which is associated with the consumption of natural resources, ore enrichment, and dust emission. These problems are easily solved with liquid-phase extraction of iron. In this work, two goals are set: the first is the development of an energy-saving thermal scheme for the process of liquid-phase extraction of iron from primary ores, the energy base of which is natural gas; the second is the development of an energy-efficient principle of using heat losses through the reactor enclosure, in which the iron recovery process takes place.