Mining or in situ disintegration of hard material – Processes
Patent
1991-05-16
1993-04-27
Bagnell, David J.
Mining or in situ disintegration of hard material
Processes
180 946, 280442, 299 31, E21C 2902, B62D 1120
Patent
active
052056120
ABSTRACT:
Mining apparatus in which a cutting wheel supporting a plurality of roller-cutters rotates about a horizontal axis and is supported on a slewing boom for cutting a tunnel with a flat floor and roof and elliptical walls as it slews across a mining face. The slewing boom is supported on a main beam assembly, the front end of which rests on powered crawler tracks and the rear end of which passes through a gripper assembly which may be clamped between the floor and roof of the tunnel, and against which the main beam assembly may be urged forward for engaging the roller-cutters with the mining face. A preload crawler is urged against the roof of the tunnel above the powered crawler tracks to locate the main beam assembly rigidly relative to the tunnel such that the roller-cutters may cut the rock in the mining face with minimal loss of cutting force due to vibration.
REFERENCES:
patent: 3282367 (1966-11-01), Mathew et al.
patent: 3439937 (1969-04-01), Dixon
patent: 3662848 (1972-05-01), Magnusson
patent: 3929378 (1975-12-01), Frenyo et al.
patent: 4312541 (1982-01-01), Spurgeon
patent: 4548442 (1985-10-01), Sugden et al.
patent: 4966242 (1990-10-01), Baillargeon
patent: 5113958 (1992-05-01), Holden
Handbook of Mining and Tunnelling Machinery by Barbara Stack (1982), pp. 275-277, relating to Krupp Tunneling Machine Model KTF340.
Continuous Surface Mining, from the Proceedings of International Symposium Edmonton Sep. 29-Oct. 1, 1986, Trans Tech Publications, 1987, pp. 211 and 213, relating to the Krupp SchRs 650/5/28 BWE Excavator and 700 I BWE Excavator.
Boyd Robert J.
Dollinger Gerald L.
Hartman Thomas M.
Moore John G.
Sugden David B.
Bagnell David J.
Z C Mines Pty. Ltd.
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