Dust control apparatus for longwall mining machinery

Details Dust control apparatus for longwall mining machinery Dust control apparatus for longwall mining machinery

1994-12-08

1996-05-21

Bagnell, David J.

Mining or in situ disintegration of hard material

Processes

Mine safety

299 43, E21C 3522

Patent

active

055182992

ABSTRACT:
Apparatus for substantially removing dust created during mining by a mining machine, which has an elongated mobile frame and a laterally extending rotating drum at each end thereof for shearing material to be won from a mine face, from air moving along the mine face. A preferred form of the apparatus includes a housing duct that is attached to the mobile frame between the rotating drums. The housing duct has an inlet and an outlet and is arranged such that the outlet is adjacent the side of the frame that faces the mine face. A screen is supported within the housing between the inlet and outlet and a fan is provided to induce dust laden air to flow into the housing and through the screen. An air deflection barrier and at least one venturi spray are attached to the frame for deflecting dust laden air into the housing inlet. At least one spray nozzle is arranged within the housing to spray a liquid from a liquid source onto the screen such that, when the dust laden air passes through the screen, it is substantially entrained in the liquid and discharged through the outlet by the fan.

REFERENCES:
patent: 3700284 (1972-10-01), Agnew
patent: 4315658 (1982-02-01), French et al.
patent: 4351567 (1982-09-01), Gillingham
patent: 4380353 (1983-04-01), Campbell et al.
patent: 5219208 (1993-06-01), Liao et al.
patent: 5265941 (1993-11-01), Marteney

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