Underground mining system and method for developing longwall pan

Details Underground mining system and method for developing longwall pan Underground mining system and method for developing longwall pan

1992-08-20

1993-11-30

Bagnell, David J.

Mining or in situ disintegration of hard material

Processes

Mine safety

299 19, 454168, E21F 114, E21C 4100

Patent

active

052659410

ABSTRACT:
An entry system for a longwall panel for the mining of coal and the like by a shearer-type cutter includes a single entryway developed by a boring type mining machine. Intake air and return air passageways are formed in the entryway by a mine stopping between the mine roof and floor to permit circulation of the air within the entryway as it is being developed. One of the passageways conveys the intake air into the entryway and the return air passageway serves to direct the dust laden air away from the mine face and receives conveyor apparatus for transporting the dislodged material out of the mine.

REFERENCES:
patent: 903492 (1908-11-01), McDonough
patent: 3111306 (1963-11-01), Love et al.
patent: 3997216 (1976-12-01), Russell
patent: 4007966 (1977-02-01), Wenneborg
patent: 4157204 (1979-06-01), Kissell et al.
patent: 4380353 (1983-04-01), Campbell et al.
patent: 4440070 (1984-04-01), Baker et al.
patent: 4607568 (1986-08-01), Hill et al.
patent: 4953914 (1990-09-01), LeBegue

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