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Application filed by Поль Вурт С.А.filedCriticalПоль Вурт С.А.
Publication of UA85295C2publicationCriticalpatent/UA85295C2/en
The invention concerns a method for treating iron-and-steel plant sludge comprising adjusting the available CaO content of the sludge so as to obtain an available CaO content between 3% and 8% based on the sludge weight, adding a carbon-containing fuel, introducing the sludge onto one of the upper stages of a multistage furnace, heating the multistage furnace, gradually transferring the sludge onto the lower stages, and adjusting the temperature of the exhaust gases of the multistage furnace to at least 500°С and that of the treated sludge at the output of the multistage furnace to a temperature ranging between 700°С and 800°С.
UAA200704621A2004-10-052005-10-04Method for treatment of sludge from metallurgical plant in polyzonal furnace
UA85295C2
(en)
INSTALLATION AND METHOD FOR BURNING GAS EXITING FROM THE FURNACE FOR PRELIMINARY HEATING OF SCRAP LOADED IN THIS FURNACE, METHOD AND INSTALLATION FOR REFINING STEEL