Control mechanism for the extension units in the longwall...

Details Control mechanism for the extension units in the longwall... Control mechanism for the extension units in the longwall...

2003-12-11

2008-11-25

Singh, Sunil (Department: 3672)

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

C405S302000

Reexamination Certificate

active

07455368

ABSTRACT:
A longwall support control for controlling the movements of the longwall support units and the advance heading in the longwall of a mine comprises a plurality of control units, of which a separate mining shield control device is locally and operationally associated to each longwall support unit. Each mining shield control device comprises a multi-channel radio transceiver, such that the mining shield control device is in a simultaneous transmit and receive mode with a decentralized operating device for receiving control signals and for transmitting inspection data. The mining shield control devices may be interconnected and each mining shield control device may include an amplifier.

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