瓦斯排放時應做到以下幾方面安全事項:

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

　　(1)人工啟動局部避風機向停風瓦斯積鼠若道吹人一定的有限風量，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)排放瓦斯時，應安排專人檢查停風瓦斯集聚巷道回風流與全風壓風流混合處的瓦斯濃度。

(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)當停風瓦斯積眼街道三風流與全風壓風流混合處的瓦斯依度達到1.5%或1.5%以上時，應通知調節風量人員，減少向停風瓦斯積聚巷道吹人的風量，確保混合處的瓦斯和一氧化碳濃度不超限。

(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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