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%)
正确答案:
矿石批重=6.0×3.8=22.8t
其中烧结矿22.8×95%=21.66t
块矿22.8×5%=1.14t
每批出铁=(21.66×47.55%+1.14×45.50%)×98.4%/92%=11.57t
焦比=6.0/11.57=0.519t/t·Fe
煤比=12.7÷10/11.57=0.110t/t·Fe
燃料比=0.519+0.110=0.629t/t·Fe
综合焦比=0.519+0.110×0.7=0.596t/t·Fe
该炉焦比519kg/t·Fe,煤比110kg/t·Fe,燃料比629kg/t·Fe,综合焦比596kg/t·Fe。
其中烧结矿22.8×95%=21.66t
块矿22.8×5%=1.14t
每批出铁=(21.66×47.55%+1.14×45.50%)×98.4%/92%=11.57t
焦比=6.0/11.57=0.519t/t·Fe
煤比=12.7÷10/11.57=0.110t/t·Fe
燃料比=0.519+0.110=0.629t/t·Fe
综合焦比=0.519+0.110×0.7=0.596t/t·Fe
该炉焦比519kg/t·Fe,煤比110kg/t·Fe,燃料比629kg/t·Fe,综合焦比596kg/t·Fe。
答案解析:有
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