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改善精炼铬铁冶炼过程的技术经济指标,强化其氧化还原反应的可行途径之一便是原料予热处理,使用热料进行熔炼。特别是精炼铬铁熔炼时炉料的物理热不超过总进热的1%。但是为熔化炉口料面的炉料所需要的时间为整个冶炼时间的主要部分,在该时问内的过程热损火在精炼炉热利用系数为0.6—0.7的情况下为冶炼过程全热损失的绝大部分。精炼炉炉口料面温
One of the possible ways to improve the technical and economic indexes of the refined ferrochrome smelting process and to strengthen its redox reaction is to feed the raw materials for heat treatment and use hot materials for smelting. In particular, the physical heat of the charge during smelting of ferrochrome does not exceed 1% of the total incoming heat. However, the time required for melting the charge of the material surface of the furnace is a major part of the entire smelting time, during which time the heat-loss heat of the process is the total heat loss in the smelting process in the case of a heat utilization factor of 0.6-0.7 in the refining furnace The vast majority. Refining furnace mouth material surface temperature