已知某高炉的炉料结构为烧结81%,海南19%,焦批为18.5T,负荷为4.2t/t,小时料批为8批/h,喷煤量为48T/h,生铁及原燃料的成分见表。焦碳灰分为12.5%,煤粉的灰分为11.5%。生铁的收得率为0.998。(其他成分忽略不计),炉渣中CaO%占比例为42.0%。 原燃料成分组成: 请计算: ①每批理论出铁量; ②每吨铁理论出渣量;
正确答案:
矿批:18.5×4.2=77.7(T)
烧结:77.7%81.0%=62.94(T)
海南:77.7-62.94=14.06(T)
{[62.94×57.83%+14.06×55.99%]×99.8%}/0.94478=46.314(T/批)
焦比:18.5/46.314=399.4kg/Tfe
煤比:48/6/46.314=129.55 kg/Tfe
矿耗:77.7/46.314=1.6777(T/T)
烧结:1.6777×81%=1.3589(T/T)
海南:1.6777-1.3589=0.3188(T/T)
CaO量:1.3589×9.98%+0.3188×0.30%+0.3994×12.5%×0.60%+0.12955×11.5%×0.68%=0.1370T/T
渣量:0.1370/42%=326.1kg/Tfe
烧结:77.7%81.0%=62.94(T)
海南:77.7-62.94=14.06(T)
{[62.94×57.83%+14.06×55.99%]×99.8%}/0.94478=46.314(T/批)
焦比:18.5/46.314=399.4kg/Tfe
煤比:48/6/46.314=129.55 kg/Tfe
矿耗:77.7/46.314=1.6777(T/T)
烧结:1.6777×81%=1.3589(T/T)
海南:1.6777-1.3589=0.3188(T/T)
CaO量:1.3589×9.98%+0.3188×0.30%+0.3994×12.5%×0.60%+0.12955×11.5%×0.68%=0.1370T/T
渣量:0.1370/42%=326.1kg/Tfe
答案解析:有
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