Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid
Patent
1992-12-08
1995-01-10
Bagnell, David J.
Mining or in situ disintegration of hard material
Processes
Breaking down by direct contact with fluid
83177, 239589, 239601, 299 81, 451102, E21C 2560, B05B 104
Patent
active
053800680
ABSTRACT:
A method and system for cutting kerfs in rock is shown and described. In one embodiment, a single fan jet is mounted in ultrahigh-pressure tubing. In an alternative embodiment, a manifold in which two fan jets are mounted is coupled to a manifold in which two round jets are mounted, such that the twin fan jets are directed so as to cover the entire width of the kerf and the round jets are directed towards the edges of the kerf to cut out a well defined kerf. In another alternative embodiment, an angled fan nozzle is mounted in ultrahigh-pressure tubing and combined in a system with another angled fan nozzle mounted in ultrahigh-pressure tubing such that the angled fan jets may be directed at opposite walls of a kerf to carve out a well defined kerf of a desired depth.
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High Energy Jets Limited Brochure "A Technical Breaktrough in Fan Jets" undated.
WOMA Jet Nozzle, undated.
Prototype of Jet Nozzle sold on Oct. 1, 1991.
Hashish, M., et al., "Abrasive-Waterjet Deep Kerfing of Concrete for Nuclear Facility Decommissioning," Proceedings of the Third U.S. Water Jet Symposium, Pittsburgh, Pa., May 1985, pp. 123-144.
Hashish, M., "Deep Kerfing Concepts with Penetrating Abrasive-Waterjet Nozzles," Proceedings of the Canadian Congress of Applied Mechanics, Alberta, Canada, 1987.
Hashish, M., et al., "Development of Abrasive-Waterjet Concrete Deep Kerf Tool for Nuclear Facility Decommissioning," Proceedings of the International Water Jet Symposium, Water Jet Technology Association, Beijing, China, Sep. 1987.
Bagnell David J.
Flow International Corporation
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