基夫赛特式炉闪速炉功能区冶炼过程的同时平衡

Simultaneous equilibrium about smelting process in functional area of Kivcet flash furnace

基于硫化铅矿在闪速炉功能区冶炼过程的多相同时平衡原理,利用平衡摩尔量法分析和讨论熔炼温度、初始氧量和初始硫化铅量对平衡后各凝聚态产出量的影响。结果表明:在较高温度下,初始氧量的增加会使硫酸铅的产量增加,而硫化铅的产量降低;低氧量条件下不生成硫酸铅而生成硫化铅。考虑产物的后续碳还原处理,在冶炼过程中应选择高氧气输入量以生成容易处理的硫酸铅,而不是较难处理的硫化铅。

Based on the multiphase simultaneous equilibrium principle of lead sulfide minerals smelting process in the fimctional area of flash furnace, Moore balance method was used to investigate the effect of smelting temperature, initial oxygen content and initial lead sulfide content on the output of each condensed matter after reaching equilibrium. The results show that, under high temperature condition, the output of lead sulfate increases, while with the increase of initial of oxygen content, the output of lead sulfide decreases. In addition, lower oxygen input cann＇t result in the generation of lead sulfate, but lead sulfide will emerge. Considering the subsequent treatment of the products, it is suggested that higher oxygen input should be chosen during the smelting process, in order to generate the tractable lead sulfate rather than unmanageable lead sulfide.