Method and apparatus for sensing coal-rock interface

Details Method and apparatus for sensing coal-rock interface Method and apparatus for sensing coal-rock interface

1989-06-09

1991-01-01

Britts, Ramon S.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

299 45, E21C 3508

Patent

active

049813277

ABSTRACT:
The method and apparatus for sensing the coal-rock interface while longwall mining by placing the sensor in the cowl adjacent the shearer drum so that sensor on the leading drum can feedforward interface data for the control of the trailing shearer drum by properly positioning the drum while cutting.

REFERENCES:
patent: 3591235 (1971-07-01), Addison
patent: 3719394 (1973-03-01), Hartley
patent: 4072349 (1978-02-01), Hartley
patent: 4155594 (1979-05-01), Hartley et al.
patent: 4262964 (1981-04-01), Ingle et al.
patent: 4643482 (1987-02-01), Wolfenden

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