在冲天炉熔炼过程中,炉内同时存在着金属炉料与高温炉气、焦炭及熔渣的相互接触,这不仅导致金属炉料的重熔过热,还同时伴随着铸铁中各元素成分的变化,因此,为了熔炼出各种成分和性能的铸铁,必须在了解熔炼过程中铸铁成分变化规律的基础上进行正确的配料。配料计算的目的在于用成本低廉的炉料获得优良的铁水。 In the cupola melting process, there is a simultaneous presence of the metal charge and the high-temperature furnace gas, coke and slag in the furnace, which not only leads to the overheating of the metal charge remelting, but also accompanies the change of each elemental composition in the cast iron , In order to smelt cast iron of various compositions and properties, it is necessary to carry out the correct dosing on the basis of understanding the variation law of cast iron composition in the smelting process. The purpose of ingredient calculation is to obtain good hot metal with inexpensive charge.