基于Metcal模拟富氧侧吹处理锌浸尾渣工艺流程计算

基于Metcal对富氧侧吹处理锌浸尾渣工艺流程进行模拟计算。结果表明，在投入量22 t/h的条件下，侧吹炉需要氧气量为5 442.124 m³/h、空气量为5 532.826 m³/h,产出熔炼炉渣中含Fe 32.903%、Zn 5.677%。烟化炉所需空气量为10 879.602 m³/h,产出烟化渣中含Fe 47.786%、Zn 0.828%。与模拟计算结果相比，现场物料化验结果熔炼炉渣中Fe含量低2.783个百分点、Pb含量低0.215个百分点、Zn含量低0.777个百分点。烟化渣中Fe含量低2.536个百分点、Pb含量低0.139个百分点、Zn含量高0.672个百分点。次氧化锌中Fe含量低0.771个百分点、Pb含量高1.811个百分点、Zn含量高0.42个百分点。基于Metcal建立的侧吹熔炼脱硫-烟化吹炼提锌工艺数学模型具有良好的可靠性，对生产具有一定的指导意义。

Calculation of Process Flow of Zinc Leaching Tailings Treated by Simulated Oxygen Enriched Side Blowing Based on Metcal

Simulation calculation of the process flow of oxygen-enriched side blowing treatment of zinc leaching tailings was conducted based on Metcal. The calculation results show that under the condition of input amount of 22 t/h, Oxygen amount required by side-blown furnace is 5 442.124 m3/h and air amount is 5 532.826 m3/h, and the output smelting slag contains Fe 32.903% and Zn 5. 677%. Air volume required by fuming furnace is 10 879.602 m3/h, and fumed slag produced at the same time contains Fe 47.786% and Zn 0.828%. Compared with the simulation results, Fe, Pb and Zn content in slag of smelting furnace is 2.783, 0.215 and 0.777 percentage points lower. Fe and Pb contents in fuming lag is 2.536 and 0.139 percentage points lower, while Zn content is 0.672 percentage point higher; Fe content in secondary zinc oxide is 0.771 percentage point lower, while Pb and Zn contents are 1.811 and 0.42 percentage point higher. The mathematical model of side-blown smelting desulfurization-fuming blowing zinc extraction process established based on Metcal has good reliability and has certain guiding significance for production.