Directing against catching fire and explosion in coal pulverizing system of boilers no, 3 and 4 in Dagang Power Plant, stone concrete preventing measures have been put forward from two aspects, namely equipment manufacture and operation.

• 摘要针对大港发电厂3、4号锅炉制粉系统著火和爆炸事故，从设备改造和运行两方面提出了一些具体的防爆措施。