计算题:已知烧结矿和块矿含铁分别为47.55%,45.50%,熟料率95%,焦批6.0t,负荷3.8,料速10批/h,喷吹煤粉12.7t/h,试计算焦比、煤比、燃料比和综合焦比?(置换比0.7,Fe元素进入生铁98.4%,生铁含Fe92%)