Inertization system for highwall mining

Details Inertization system for highwall mining Inertization system for highwall mining

1998-10-09

1999-12-07

Bagnell, David

Mining or in situ disintegration of hard material

Processes

Mine safety

299 64, E21F 500

Patent

active

059971002

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).

REFERENCES:
patent: 3922015 (1975-11-01), Poundstone
patent: 4465155 (1984-08-01), Collins
patent: 5253925 (1993-10-01), Modzik, Jr.
patent: 5261729 (1993-11-01), Addington et al.
patent: 5273344 (1993-12-01), Volkwein et al.
patent: 5820233 (1998-10-01), Marshall et al.

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