>某厂某月生产烧结矿190000t,消耗无烟煤11600t,焦粉1730t,高炉煤气209万,焦炉煤气76万,电380万kwh,蒸汽1500t,试计算烧结矿工序能耗。(折算系数:煤0.783,焦粉0.89,高炉煤气0.1286kg/㎡,焦炉煤气0.5714 kg/㎡,蒸汽0.129t/t,电0.404kg/kwh)
无烟煤:11600t 9082.8
焦粉:1730t 1539.7
高炉煤气:209000 m3 268.77
焦炉煤气:760000 m3 434.26
电:3800000kwh 1535.2
蒸汽:1500t 193.5
Σ 13054.23
工序能耗=13054.23×1000/190000
=68.71(kg标煤/t)
答:烧结矿工序能耗为68.71kg标煤/t