A.98.0% B.98.3% C.98.5% D.100%
一層轉(zhuǎn)化率=(600-400)/2.78=71.94%
(1)焙燒爐風(fēng)機(jī)跳停; (2)焙燒爐因故斷礦; (3)負(fù)壓部分漏氣。