铜精矿富氧自热熔炼动态热平衡数学模型  

MATHEMATICAL MODELLING OF DYNAMIC HEAT BALANCES OF OXYGEN-RICH SELF-SMELTING OF COPPER CONCENTRATES

作　　者：郭先健[1] 

机构地区：[1]北京有色金属研究总院

出　　处：《有色金属》1991年第4期56-60,80,共6页Nonferrous Metals

摘　　要：本文建立的铜精矿自热熔炼动态热平衡数学模型为:dQ/dt=(762.7+2313/Rs-665.5/RsXs-610.5/Yo_2)V模型的计算及分析结果表明,精矿含硫量的增加有利于熔炼过程的热平衡。若精矿含硫分数低于0.25,采用富氧对过程的热平衡产生负效应。在脱硫率为0.60时,对于精矿含硫分数分别为0.30、0.35和0.45,实现自热熔炼的富氧浓度分别为70%,45%和30%。当精矿含硫分数低于0.29时,提高脱硫率有利于过程的热平衡,而高于0.29时,则不利于过程的热平衡。A mathematical model of dynamic heat balances of oxygen-rich self- smelting of copper concertrates was developed as: dQ/dt=(762.7+2313/R_s+665.5/R_sX_s+610.5/Yo_2)V (Cont.on p.80) (Cont.from p.60) The results calculated on the basis of the model indicated that incr- ease of the sulphur content of concentrates was of benefit to heat balance. When the sulphur content was below 25% S,Oxygen enrichment had a negative effect on the heat balances of smelting. Oxygen enrichment of the air t...

关 键 词：熔炼过程 脱硫率 富氧浓度 热平衡数学模型 

分 类 号：TD862[矿业工程—金属矿开采] TF80[矿业工程—矿山开采]