本文结合工程设计实践,对连铸机二冷室排蒸汽系统中的几个关键问题进行了分析。二冷空排蒸气是连铸车间通风的重要内容。文中对二冷室的抽风形式及风量确定进行了较为详细的论述。通过对国内几个比较典型实例的分析,提出了确定抽风量的两种方法,还对排汽风机的布置及管道走向等问题提出了比较切合实际的见解。 Based on the practice of engineering design, this paper analyzes several key issues in the steam discharging system of the secondary cooling chamber of the continuous casting machine. Two cold air row steam is an important part of the continuous casting workshop ventilation. In this paper, the draft of the second cold chamber and air volume determination were discussed in more detail. Based on the analysis of several typical domestic examples, two methods for determining the amount of exhaust gas are put forward, and more practical views are put forward on the layout of the exhaust fan and the pipe running direction.