Dust control in longwall mining

Details Dust control in longwall mining Dust control in longwall mining

1982-10-01

1984-11-20

Joyce, Harold

Mining or in situ disintegration of hard material

Processes

Forming blocks

299 19, E21F 100

Patent

active

044832389

ABSTRACT:
Boreholes are drilled at an angle from gate roads to the working face in a longwall mining operation, and air is exhausted from the working face area through the boreholes. Additional boreholes, parallel to the first boreholes, are drilled from the gate roads into the longwall pillar, and as the face moves through the pillar it intersects the additional boreholes, and dust-laden air is exhausted through the additional boreholes.

REFERENCES:
patent: 925274 (1909-06-01), Belloni
patent: 2859682 (1958-11-01), Joy
patent: 3455606 (1969-07-01), Fischer et al.
patent: 3695714 (1972-10-01), Thompson
patent: 4196933 (1980-04-01), Nakigima et al.

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