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本文运用数学物理方法,导出冲天炉炉内二氧化碳分布特性方程式;炉内气体浓度沿底焦高度上的变化率;提出冲天炉风口叠加效应;在冲天炉的氧化带与还原带之间存在着过渡带;冲天炉的炉气水当量与传热效果。并运用这些理论揭示目前国内流行的几种炉型的热负荷特性。笔者认为稳定、适当的底焦高度只是强化冲天炉熔炼的必要条件,它的充分条件是在保证合理的CO_2分布律的前提下,争取尽可能大的热价值。
In this paper, mathematical physics method is used to derive the equation of carbon dioxide distribution in the cupola furnace; the rate of change of gas concentration along the bottom coke height; the combination effect of the cupola tuyere; the transition between the oxidation zone and the reduction zone of the cupola Belt; cupola furnace gas water equivalent and heat transfer effect. And the use of these theories to reveal the current popularity of several domestic furnace heat load characteristics. The author believes that a stable and appropriate bottom coke height is only a necessary condition for strengthening cupola melting. Its sufficient condition is to strive for the greatest possible heat value under the premise of ensuring a reasonable CO_2 distribution law.