基于MetCal的双底吹连续炼铜工艺全流程模拟计算

以"底吹造锍熔炼-底吹铜锍吹炼"铜冶炼工艺为设计计算对象,基于冶金工艺流程计算系统开发平台(MetCal),运用化学平衡、质量守恒、热量守恒、元素分配约束等原理建立了底吹熔炼配料、底吹造锍熔炼、底吹熔炼余热锅炉、底吹铜锍吹炼、铜锍吹炼余热锅炉等冶金单元数学模型.开发了双底吹炼铜工艺全流程模拟系统,通过计算得到了全流程物...

Simulation calculation of overall process of double bottom blowing continuous copper smelting process based on MetCal

Mathematical model of metallurgical units were established for bottom blowing smelting ingredients, bottom blowing smelting, bottom blowing smelting waste heat boilers, bottom blowing copper matte converting, copper matte converting waste heat boilers, based on such theories as chemical equilibrium, principles of mass conservation, heat conservation, element allocation constraints, when the metallurgical process computing system development platform (MetCal) was used to calculate the copper smelting process of "bottom blowing smelting-bottom blowing matte converting". A simulation system for the entire double-bottom blowing copper process was developed to calculate the material distribution and heat equilibrium of each control unit, whose results were validated by production dates. The research results showed that the absolute errors between production dates and calculations of Cu, S, Fe, Pb, Zn content in matte in the bottom blowing smelting process were 0.32%, 0.74%, 1.64%, 0.47% and 0.32%, respectively, and those of Cu, S, Fe, Pb, Zn, CaO, Al₂O₃, MgO in the smelting slag were 0.05%, 0.96%, 1.59%, 1.13%, 1.09%, 1.17%, 2.45% and 0.67%, respectively. Those of Cu, S, Fe, As, Sb, Bi, Pb, Zn in the bottom blowing process of blister copper were 0.43%, 0.03%, 0.01%, 0.07%, 0.046%, 0.006%, 0.32%, 0.014%, respectively, and those of Cu, S, Fe, Pb, Zn in slag converting were 1.83%, 0.06%, 11.35%, 11.92%, 2.36% respectively. The above calculations provides the basis for industrial production guidance and industrial design.