![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
处理蓬料休风操作减风至()时应稳定5-6分钟以上,并观察风口,确认无灌渣危险后缓慢休风。
A.30KPA
B.20KPA
C.10KPA
查看答案
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.30KPA
B.20KPA
C.10KPA
A.可根据CO2的含量判断料线
B.CO2曲线拐点在炉身下部,标志间接还原结束
C.料线降至风口中心线时CO2达到18-20%,出最后一次铁后停炉休风
D.料线降至风口附近时CO2达到15-18%,出最后一次铁后停炉休风
A.31.2
B.20.8
C.41.6
D.33