Auxiliary device for a mining machine

Details Auxiliary device for a mining machine Auxiliary device for a mining machine

1977-06-16

1978-10-31

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Sidewall-working

299 18, 299 87, E21C 3520

Patent

active

041231104

ABSTRACT:
An auxiliary device for a longwall mining machine incorporating an underframe, by which it is mounted for movement along the conveyor of the mining machine, and it is coupled to the mining machine. The auxiliary device comprises a rotary breaking or crushing element drivably carried by the underframe and the underframe is provided with a reaction means, preferably a plate, spaced away from an adjacent periphery of the rotary element. In use, material on the moving conveyor passes between the rotating breaking or crushing element and the reaction plate where the material is broken up or crushed. In this way, it can be ensured that any large lumps of coal or rock on the conveyor can be broken down to a sufficiently small size so as not to become jammed beneath the main frame of the mining machine straddling the conveyor.

REFERENCES:
patent: 3907367 (1975-09-01), Nakajima
patent: 3945680 (1976-03-01), Henrich et al.

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