Inertization system for highwall mining
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United States of America Patent
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-
Dec 7, 1999
Issued Date -
N/A
app pub date -
Oct 9, 1998
filing date -
Jul 12, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A highwall mining system for mining aggregate material from a seam (8) includes a mining device (9) for cutting aggregate material from the seam (8) thereby to form a drive (10) in the seam (8), a conveying device (11) for conveying mined aggregate material from the drive (10), and a circulation device located on or in the region of the mining device (9) for circulating the atmosphere at least at the forward end of the drive (10). The system further includes an inertization device (60, 61, 63, 71) for maintaining the concentration of oxygen in the atmosphere in the drive (10) lower than the concentration of oxygen required for explosion of methane gas and/or dusts and/or other flammable materials in the drive (10).
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