Combined sealing device for energy absorption and explosion discharge of coal spontaneous combustion fire zone and construction technology of combined sealing device
A construction technology, coal spontaneous combustion technology, applied in mining installations, mining equipment, earthwork drilling, etc., to achieve the effects of high impact resistance, short construction time and reasonable design
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Embodiment 1
[0034] A combined airtight device for energy absorption and explosion relief in coal spontaneous combustion fire zone, specifically as Figure 1-3 As shown, colloidal explosion-proof bag 2 and airbag bag 3 are made of a blend of metallocene polyethylene and general-purpose polyethylene in a mass ratio of 30:70;
[0035] The colloidal explosion-proof bag 2 is a hollow soft structure with an arched top. The thickness of the colloidal explosion-proof bag 2 is 1m. The mass ratio is the first interlayer and the second interlayer made of the blend of 30:70, and the first interlayer and the second interlayer separate the inside of the colloidal explosion-proof bag 2 from top to bottom into an arched cavity 21, The first cavity 22 and the second cavity 23;
[0036] There are grouting holes 6 on the top of the same side of the arched cavity 21, the first cavity 22 and the second cavity 23. The grouting holes 6 are connected with a grouting pipe, and the grouting pipe is connected with...
Embodiment 2
[0052] A combined airtight device for energy absorption and explosion relief in coal spontaneous combustion fire zone, specifically as Figure 1-2 As shown, colloidal explosion-proof bag 2 and airbag bag 3 are made of a blend of metallocene polyethylene and general-purpose polyethylene in a mass ratio of 40:60;
[0053] The colloidal explosion-proof bag 2 is a hollow soft structure with an arched top. The thickness of the colloidal explosion-proof bag 2 is 3m. The mass ratio is the first interlayer and the second interlayer made of the blend of 40:60, and the first interlayer and the second interlayer separate the inside of the colloid explosion-proof bag 2 from top to bottom into an arched cavity 21, the second interlayer A cavity 22 and a second cavity 23;
[0054] There are grouting holes 6 on the top of the same side of the arched cavity 21, the first cavity 22 and the second cavity 23. The grouting holes 6 are connected with a grouting pipe, and the grouting pipe is conn...
Embodiment 3
[0069] A combined airtight device for energy absorption and explosion relief in coal spontaneous combustion fire zone, specifically as Figure 1-2 As shown, colloidal explosion-proof bag 2 and airbag bag 3 are made of a blend of metallocene polyethylene and general-purpose polyethylene in a mass ratio of 50:50;
[0070] The colloidal explosion-proof bag 2 is a hollow soft structure with an arched top. The thickness of the colloidal explosion-proof bag 2 is 5m. The mass ratio is the first interlayer and the second interlayer made of the blend of 50:50, and the first interlayer and the second interlayer separate the inside of the colloid explosion-proof bag 2 from top to bottom into an arched cavity 21, the second interlayer A cavity 22 and a second cavity 23;
[0071]There are grouting holes 6 on the top of the same side of the arch cavity 21, the first cavity 22 and the second cavity 23, and the grouting holes 6 are connected with grouting pipes; the grouting pipes are connec...
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