介绍了高炉煤气压缩机采用氮气密封的改造。
Reformation of nitrogen seal of blast furnace gas compressor is introduced.
阐述了4L-20/9-Ⅱ型焦炉煤气压缩机十字头滑道频繁烧研的过程，并对烧研原因进行了认真分析。
The burnout and wear procedure of cross slide way of 4L-20/9-II coke-oven gas compressor was presented and the burnout and wear causes were seriously analyzed.
阐述了4L-20/9-Ⅱ型焦炉煤气压缩机十字头滑道频繁烧研的过程，并对烧研原因进行了认真分析。
The burnout and wear procedure of cross slide way of 4L-20/9-II coke-oven gas compressor was presented and the burnout and wear causes were seriously analyzed.
应用推荐