瓦斯排放时应做到以下几方面安全事项:

When discharging gas, the following safety precautions should be taken:

　　(1)人工启动局部避风机向停风瓦斯积鼠若道吹人一定的有限风量，逐步排除巷道集聚的瓦斯。

(1) Manually activate the local ventilation fan to blow a certain amount of limited air volume towards the trapped gas, gradually eliminating the accumulated gas in the roadway.

　　(2)排放瓦斯时，应安排专人检查停风瓦斯集聚巷道回风流与全风压风流混合处的瓦斯浓度。

(2) When discharging gas, a dedicated person should be arranged to check the gas concentration at the mixing point of the return air flow and the full pressure air flow in the gas gathering roadway.

　　(3)当停风瓦斯积眼街道三风流与全风压风流混合处的瓦斯依度达到1.5%或1.5%以上时，应通知调节风量人员，减少向停风瓦斯积聚巷道吹人的风量，确保混合处的瓦斯和一氧化碳浓度不超限。

(3) When the gas concentration at the intersection of the three air flows and the full pressure air flow in the street with gas accumulation due to wind stoppage reaches 1.5% or more, the personnel responsible for adjusting the air volume should be notified to reduce the amount of air blowing into the gas accumulation roadway due to wind stoppage, ensuring that the concentration of gas and carbon monoxide at the intersection does not exceed the limit.

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