煤矿瓦斯抽采基本指标是什么?

2024-12-29 23:09:34
推荐回答(2个)
回答1:

【矿井瓦斯抽采率应达到的指标】

矿井绝对瓦斯涌出量Q(m3/min) 矿井抽采率(%)

Q<20                                                ≥25

20≤Q<40                                ≥35

40≤Q<80                                ≥40

80≤Q<160                                ≥45

160≤Q<300                                ≥50

300≤Q<500                                ≥55

500≤Q                                                ≥60

【采煤工作面瓦斯抽采率应达到的指标】

工作面绝对瓦斯涌出量Q(m3/min) 工作面抽采率(%)

5≤Q<10                                                 ≥20

10≤Q<20                                 ≥30

20≤Q<40                                 ≥40

40≤Q<70                                 ≥50

70≤Q<100                                 ≥60

100≤Q                                                 ≥70

参考标准【煤矿瓦斯抽采基本指标】AQ 1026—2006

回答2:

瓦斯抽采率