Mineral mining installations

Details Mineral mining installations Mineral mining installations

1981-12-18

1983-11-15

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

405296, E21D 2300

Patent

active

044152957

ABSTRACT:
A mineral mining installation serves to win mineral by explosive blasting. The installation employs a shuttle conveyor arranged alongside a mineral face. Roof supports stand side-by-side at the side of the conveyor remote from the conveyor. The roof supports are connected to the conveyor through shifting rams and have roof-engageable caps or the like supported on hydraulic props. The pans of the conveyor have upstanding walls at the rear side nearest the roof supports which carry rails at their upper ends. The roof caps have wall components pivoted thereto and hydraulic piston and cylinder units serve to swing the wall components up and down. When explosive blasting takes place the wall components are swung down to engage on the walls of the conveyor pans to form a screen between the winning region and the access region of the working.

REFERENCES:
patent: 1386622 (1921-08-01), Huguenin
patent: 3623771 (1971-11-01), Sosnowicz
patent: 3638754 (1972-02-01), Sosnowicz et al.
patent: 3889475 (1975-06-01), Allen

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