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我厂于1977年建成一座中央送风冲天炉,其熔化效率增长25%,出铁温度升高约20℃,总铁焦比达到12.8,耗焦量下降20～50%,碎焦利用率20～25%。估计每年节约焦炭60多吨,节电6480千瓦,并可提高炉衬寿命、消除漏风现象、保证铁水质量。一、炉型1.炉型结构(见图1) 大炉内径为φ700毫米。除去风口部位的有效面积为0.337平方米,有效高度为3800毫
I built a factory in 1977, a central air cupola, the melting efficiency increased by 25%, tapping temperature increased by about 20 ℃, the total iron coke ratio reached 12.8, the power consumption decreased by 20 to 50%, the utilization of 20% broken ~ 25%. Estimated annual savings of more than 60 tons of coke, energy-saving 6480 kilowatts, and can improve the lining life, to eliminate air leakage, to ensure the quality of hot metal. First, the furnace 1. Furnace structure (see Figure 1) Large furnace diameter φ700 mm. Remove the effective area of the tuyere area is 0.337 square meters, the effective height of 3800 milliliters