Underground coal gasifier with air-lift point separating control and its process
A technology for underground gasification and separation control, applied in coal gasification, underground mining, construction, etc., can solve problems such as endangering the safety of gasification system, reduction of gas supply and gas production, explosion, etc., to ensure gas production and quality, Increase controllability and stability, avoid the effect of falling blockage
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[0024] Figure 1 shows the U-shaped structure of the underground gasifier, in which the air supply hole 2 is opened in the non-coal zone 5, the air supply hole 2 is provided with air outlet holes 4 on both sides, and the air supply hole 2 and the air outlet hole 4 are respectively connected upwards In the ground control system 1, there is an air supply lane 12 in the coal seam area 7, and a gas channel 6 is opened on both sides of the air supply lane 12. The gas channel 6 is connected with the air outlet 4, and the air supply lane 12 is connected with the air supply hole 2. The distance between the air hole 2 and the air outlet 4, the air supply lane 12 and the gas passage 6 is 40m; the length of the air supply lane 12 and the gas passage 6 is 200m.
[0025] A coal seam gasification zone 10 is provided at the bottom of the air supply lane 12 and the gas channel 6. The coal seam gasification zone 10 moves up with the gasification and combustion of the coal seam, and blinds are provi...
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