The three-stage process for smelting reduction is applied to the production of hot metal from fines of ore and coal without metallurgical coke. In the first stage of the process the iron ore is heated up and pre-reduced in a cyclone-heat exchanger system. It is subsequently smelted in the second stage using a smelting cyclone. The final reduction of molten oxide with formation of hot metal takes place in the iron-bath reactor. The general characteristics of the metallurgical reactors are described. A detailed description of the process flow sheet for a production line with a capacity of 250 000 t/a is presented.
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机译：熔炼减少的三阶段方法应用于矿石和煤炭的热金属的生产，没有冶金焦炭。在该方法的第一阶段，铁矿石在旋风式换热器系统中加热并预先降低。随后使用熔炼式旋风在第二阶段熔炼。在铁浴反应器中形成具有热金属的熔融氧化物的最终还原。描述了冶金反应器的一般特征。提出了一种具有250 000 T / A的生产线的工艺流程片的处理流程图的详细描述。
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