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钢铁企业有大量属于二次能源的气体燃料,尤其是副产的高炉煤气、焦炉煤气,不仅量大,而且燃烧容易控制,热效率也很高。充分回收利用这些副产煤气,对于节约能源,提高企业经济效益具有重要意义。 华东地区钢铁企业1982年产钢860万吨,其中转炉钢430万吨,一年可回收2.8亿立方米(按吨钢65米~3)计算,折合标煤7万吨除上海一厂三厂和三明厂收回,大部份放散;年产焦562万吨,焦炉煤气发生量19.5亿米~3,折合标煤113.9万吨,其中尚有11万吨标准煤得收回;高炉煤气年产量118亿
Iron and steel enterprises have a large number of secondary sources of gas fuel, especially the by-product of blast furnace gas, coke oven gas, not only the amount of large, but also easy to control combustion, thermal efficiency is also high. The full recovery and utilization of these by-product gases is of great significance for saving energy and improving the economic efficiency of enterprises. In east China, the steelmakers produced 8.6 million tons of steel in 1982, of which 4.3 million tons of converter steel and 280 million cubic meters of recyclable steel a year (65 to 3 tons per tonne), equivalent to 70,000 tons of standard coal, And Sanming plant recovered, most of the dispersed; with an annual output of 5.62 million tons of coke, coke oven gas production 1.95 billion meters ~ 3, equivalent to 1.139 million tons of standard coal, of which there are still 110,000 tons of standard coal recovered; annual output of blast furnace gas 11.8 billion