在冲天炉中熔炼铁精矿粉的试验分析

Experimental Analysis of the Iron Ore Concentrates Melting in the Cupola

在进行热力学和动力学分析的基础上 ,阐述了在冲天炉中熔炼铁精矿粉的可能性 .通过自行设计热风冲天炉和采取铁精矿粉压块等手段 ,改善了铁精矿粉还原的热力学条件和动力学条件 .生产试验表明 ,在冲天炉中用铁精矿粉压块代替部分金属炉料直接生产铸铁件是可行的 ,铸件化学成分稳定 ,机械性能良好 ,可有效地降低铸件成本 ,提高经济效益 .

On the basis of thermodynamics and dynamics, the possibility of the melting of iron ore concentrates in the cupola is discussed. The thermodynamic and dynamic conditions of the reduction of iron ore concentrates are changed by means of designing cupola and compressing iron ore concentrates into briquettes. In the cupola the briquettes are used to substitute some metal charges for producing iron cast.The chemical composition and the mechanical properties of iron cast are very good.The cost of iron cast decreases.The economical benefit rises.