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改造冲天炉成为水冷操作,可以在较长时间内连续开炉和减少更换耐火材料费用。本文介绍改造35时和40时冲天炉的方法,以及经过两年运行的结果。水冷炉壳的冲天炉可以在1～3个月内连续开炉,耐火材料的消耗随之按比例降低。水冷冲天炉炉壳还能使熔化带直径保持不变.从而使得炉子的运行和熔化率的稳定性得到改善。但却增加了冷却水的费用和补偿被水带走的热量所附加的燃料费用。由于炉壳表面的冷却取决于冲天炉的圆周,而熔化率却取决于炉子的横截面。因此熔化每一吨铁所需要的冷却水将随着冲天炉的变小为而急剧增加。几年来,权衡被冷却水带走的热量所消耗的燃料费用与节约耐火材料的费用后,我们认为,直径小于54～60时冲天炉采用水冷操作,在经济上是勉强合算的。但对直径为42～48时的冲天炉采用水冷操作代价太高昂了。可是耐火材料、水、劳动力和焦炭的比价已改变,因此直径为30时或更小的冲天炉,采用水冷操作现在也能节省钱。
Reformation Cupola become a water-cooled operation, you can open a long time and reduce the cost of replacing the refractory. This article describes ways to revamp the cupola at 35 and 40 o’clock, as well as the results of two years of operation. Cupola water-cooled furnace can be continuously opened within 1 to 3 months, the proportion of refractories consumed accordingly. The water-cooled cupola furnace shell also keeps the melt belt diameter constant, thereby improving furnace operation and melt rate stability. But increased the cost of cooling water and the additional fuel cost to compensate for the heat removed by the water. Since the cooling of the shell surface depends on the circumference of the cupola, the melting rate depends on the cross section of the furnace. As a result, the cooling water required to melt each ton of iron will increase drastically as the cupola shrinks. In recent years, weighing the cost of fuel consumed by the heat removed by the cooling water and the cost of saving refractory materials, we believe that the use of water-cooled cupola furnaces with diameters less than 54 to 60 is economically unwieldy. However, when the diameter of 42 ~ 48 cupola using water-cooled operation is too expensive. However, the ratio of refractories, water, workforce and coke has changed, so a cupola with a diameter of 30 or less can now save money with water-cooled operation.