Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1989-05-22
1990-08-07
Bui, Thuy M.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
37 78, 37189, 299 17, 299 67, F21C 2560
Patent
active
049462270
ABSTRACT:
A bucket wheel assembly for excavating solid material from the ground which can be slurried with water has a series of buckets mounted on a framework rotatable about a substantially horizontal axis, the buckets, being secured to the framework at spaced positions around the periphery, and each bucket having a leading edge portion engagable with the ground as the framework rotates to cause material to be scooped from the ground into the bucket. Sets of nozzles are mounted around the framework, each set of nozzles being located between an adjacent pair of buckets and spaced in the direction of movement of the buckets from the leading edge portion of a following bucket. A rotary valve is connected to the nozzles and to a source of liquid under pressure. The rotary valve is operated by rotation of the framework to cause liquid under pressure to be selectively supplied from the source of liquid under pressure to each set of nozzles in turn when the set of nozzles and its following bucket are approaching the ground to cause liquid from the set of nozzles to impinge on the ground and form a slurry of the material which is subsequently scooped into a following bucket.
REFERENCES:
patent: 3374033 (1968-03-01), Arentzen
patent: 3554602 (1971-01-01), Chaney
patent: 4573743 (1986-03-01), Grathoff
patent: 4691967 (1987-09-01), Schupphavs
Bagnell David J.
Bui Thuy M.
Esso Resources Canada Limited
Fors Arne I.
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