East Lake International Convention Center

1.

Bus route: Rail Transit Line 4 → No.578, the whole journey is about 11.5km

1. Walk about 80m from Wuhan station to Wuhan railway station

2. Take rail transit line 4, pass 8 stations to Dongting station

3. Walk about 670m to Huangli Road provincial news community station

4. Take No.578, pass 1 station to Donghu Road Provincial Museum Station

5. Walk about 960m, Arrive at Wuhan East Lake International Conference Center

2.

bus line: Rail Transit Line 4, the whole journey is about 11.5km

1. Walk about 2.0KM from Wuhan East Lake International Conference to Dongting station

2. Take rail transit line 4, after 8 stops, to Wuhan railway station

3. Walk about 310m to Wuhan station

3.

bus line: Rail Transit Line 2 → Rail Transit Line 8, the whole journey is about 32.6km

1. Walk about 470m from Wuhan Tianhe International Airport to Tianhe Airport Station

2. Take Rail Transit Line 2, pass 5 stops, reach Hongtu Avenue Station

3. Walk about 350m, transfer to rail transit line 8

4. Take Rail Transit Line 8, pass 10 stops, Arrive at Liyuan station

5, walk about 1.7 km to Wuhan East Lake International Conference

4. There are many solutions! This needs to be divided into low gas mine or high gas mine or high outburst mine:
1. A methane sensor is set in the working face of low gas mine, and the alarm concentration is 1% at the return air flow of the return air ct, which is not more than 10 meters away from the outlet
2. There are two methane sensors in the coal mining face of high gas mine, one is the same as before, and the other is located at the place where the return air ct enters the main return air lane and is not more than 15 meters away from the confluence, and the setting location is generally 10 to 15 meters. The alarm concentration is the same as before. In addition, portable gas detector and alarm should be set at the upper corner of the working face
3. There are three methane sensors in the coal face of coal and gas outburst mine, except for the two positions in the high gas coal face. One is also arranged at the position where the distance between the air inlet and the outlet is not more than 10 meters. The alarm concentration at the air inlet is 0.5%, and the other two are the same as above
4. There is one methane sensor in the coal roadway, semi coal rock roadway and rock roadway with gas emission in low gas mine, which is not more than 5m away from the head-on, and the alarm value is also 1%.
5. There are two methane sensors in the coal roadway, semi coal rock roadway and rock roadway with gas emission in high gas mine, One is the same as above, no more than 5 meters ahead. The other one is 10-15m away from the exit of the roadway, and the alarm value is 1% as above.

5. The absolute gas emission of heading face is higher than 3 m3 / min.

6. "Coal mine safety regulations" stipulates that in gas emission area, high gas mine, coal (rock) and gas (carbon dioxide) outburst mine, three special power supply (special transformer, special switch, special line) shall be adopted for local fan of heading face; The power supply line equipped with selective leakage protection device can also be used for power supply, but a special person should check it once a day to ensure the reliable operation of the local fan.

7. Methane sensors in coal roadway, semi coal rock roadway and heading face with gas emission rock roadway of gas mine must be set according to figure 4: methane sensor T1 is set in the mixed air flow of working face, and methane sensor T2 is set in the return air flow of working face; In tunneling face with series ventilation, the methane sensor T3 must be set in front of the local fan
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8. Three turn two lock, that is, switch to transformer, switch to circuit; Seal electricity lock, gas electricity lock.

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