为了降低链-回-环系统球团矿焙烧过程的能耗,对某工业装置进行了和(火用)平衡测试和分析,得到了(火用)流图.(火用)分析表明,传热不可逆(火用)损和燃烧不可逆(火用)损是系统损的主要部分.建立了气体质流量、床层空隙率、床高、球团直径、烟气中氧含量等运行参数与(火用)损的关系.结果表明,适当减小气体质流量、床高和球团直径,增大床层空隙率,可以减小损(火用).在其它条件不变的情况下,当烟气中二氧化碳浓度为1.0%～9.0%,将空气消耗系数控制在1.6～2.0,可使(火用)损最小.
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