Apparatus to deliver high pressure liquid from nozzles on a shea

Details Apparatus to deliver high pressure liquid from nozzles on a shea Apparatus to deliver high pressure liquid from nozzles on a shea

1985-09-19

1988-03-29

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Cleansing fluid passage

299 17, E21C 2512, E21C 2560

Patent

active

047339144

ABSTRACT:
A shearer drum for a mining machine used in underground mining is provided with cutter picks and nozzles on the periphery of the drum. The nozzles are subdivided into groups which extend substantially parallel to the rotational axis of the drum and each group of nozzles can, when disposed opposite the mine face, be connected by a controllable valve associated with the group to a line for supplying high-pressure liquid. An independent control valve and at least one cutter pick are associated with each nozzle group. The cutter pick is resiliently mounted and cutting pressure triggered by movement of the cutter pick into a mine face actuates the control valve and connects the nozzles to the high-press line.

REFERENCES:
patent: 4189183 (1980-02-01), Borowski
patent: 4488759 (1984-12-01), Bergqvist
patent: 4506932 (1985-03-01), Zitz et al.
patent: 4534597 (1985-08-01), Kemper
patent: 4565410 (1986-01-01), Hotger

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