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一、前言钢铁企业余热资源非常丰富,在当前和今后工作中必须充分利用它,这是降低能源消耗的重要措施之一。在钢铁企业中,冶金炉和工业炉的热效率一般为20～30％,大量余热随高温烟气、冷却介质、高温产品和高温炉渣而丢弃,因而余热资源的利用范围和潜力都是很大的。以平炉而言,废气带走的热量就占入炉燃料总发热量的30～35％。鞍钢1979年平炉钢产量537.7万吨,仅燃用重油
I. Preface Iron and steel enterprises have very rich waste heat resources and must make full use of it in current and future work. This is one of the important measures to reduce energy consumption. In iron and steel enterprises, the thermal efficiency of metallurgical furnaces and industrial furnaces is generally 20 to 30%, and a large amount of waste heat is discarded with high-temperature flue gas, cooling medium, high-temperature products and high-temperature slag, so the utilization range and potential of waste heat resources are great . To open hearth, the heat removed by the exhaust gas accounts for 30 to 35% of the total heat input into the fuel. Ansteel flat furnace steel production in 1979 53.77 million tons, burning only heavy oil