09-04-2014 дата публикации
Номер: CN103710480A
Принадлежит:
The invention discloses a production method for reducing iron ores by utilization of liquid-state steel slag residual heat. The method comprises the following concrete steps: first, iron ores are crushed by a crusher; second, the crushed iron ores and powdered coke are sent to a stirrer and stirred; third, liquid-state steel slag is laid at bottom of steel slag pit, then the mixture, of the iron ores and the powdered coke, to be used are placed on the liquid-state steel slag, finally, liquid-state steel slag is laid above the mixture, and the state is kept for 1.5h; fourth, the iron ores are subjected to a reduction reaction in the steel slag pit, reduced iron is generated, and after the reaction is finished, the reduced iron is subjected to magnetic separation by a magnetic separator. The beneficial effects of the method are that, first, liquid-state steel slag residual heat is employed as a heat source, the production cost for reducing iron ores is lowered, and the cost can be lowered ...
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