FIELD: metallurgy.
SUBSTANCE: method of thermal treatment of sludge of cake sediments in slag melt includes supply to the system of drying plants with cake heating and producing evaporated moisture and dried cake, after that cake is fed to an accumulating hopper with subsequent cake feed into a furnace-gasifier, which is equipped with a burner, a block of molybdenum electrodes and a block of liquid slag draining. Liquid slag is fed to a granulator through the block. In the furnace-gasifier, the organic cake is converted into product gas, which is fed via a contact heat exchanger to a water heat exchanger, after that the product gas is cooled and directed to a complete combustion chamber with a tangential inlet. The complete combustion chamber is narrowed in the region between the inlet and outlet for gas. After the complete combustion chamber, the combustion products are fed into a waste heat boiler, from which the exhaust gas is fed through a gas cleaning system into the chimney.
EFFECT: increased yield of target products with reduced emission of pollutants into the environment.
5 cl, 3 dwg
