基于镍铁冶炼工艺流程中物质流和能量流的模型与软件

Model and software of materials flow and energy flow in ferronickel smelting

通过对镍铁冶炼生产工艺中物质流和能量流平衡过程研究,获得了镍铁冶炼工艺中各个环节热量的利用率和损耗情况,以及红土矿、还原剂和熔剂在各部分中反应率,并分析了红土矿和镍铁合金中Ni含量对炉渣中镍铁成分的影响.构建针对镍铁冶炼工艺系统的总体物质流和能量流计算模型,在保证系统总体计算模型的前提下,又具有协同各子工艺系统的物质流和能量流计算模型的功能.依据各子工艺系统中物质流和能量流的关联性,计算烟气和炉气的利用率及热量损失,并利用VB软件对冶炼工艺流程计算软件进行开发.

On the basis of studies on material flow and energy flow balances in ferronickel smelting,the utilization rate and heat loss of every process were obtained,and the reaction rates of ores,reductants and fluxes were calculated in each part of the ferronickel smelting process. The effect of nickel content in the nickel laterite ore and ferronickel alloy on the contents of nickel and iron in the slag was analyzed. Computational models of overall material flow and energy flow were built. In addition to the function of calculating overall material flow and energy flow in the system,the computational models also have the function of coordinating material flow and energy flow among subsystems. Based on the relevance of material flow and energy flow in each subsystem,the utilization rate and heat loss of flue gas and furnace gas were calculated,and the calculation software of the overall ferronickel smelting process was developed by using Visual Basic.