在现有通风系统的基础上,结合实际条件,分析3种通风调整方案的优劣点,最终确定全风压与局部通风机相结合的通风方式。实践表明,该项长距离局部通风技术保证了巷道掘进所需的风量,杜绝了掘进工作面瓦斯的积聚和超限现象,实现了长距离巷道的安全掘进。 Based on the existing ventilation system and the actual conditions, the advantages and disadvantages of the three kinds of ventilation adjustment schemes are analyzed, and finally the ventilation mode combining the full wind pressure with the local ventilator is finally determined. Practice shows that this long-distance local ventilation technology ensures the volume of air required for roadway excavation, eliminates the accumulation and overrun of gas in the heading face, and achieves the safe tunneling of long-distance roadway.