GB1462371A - Mining method and apparatus - Google Patents

Mining method and apparatus

Info

Publication number
GB1462371A
GB1462371A GB815773A GB815773A GB1462371A GB 1462371 A GB1462371 A GB 1462371A GB 815773 A GB815773 A GB 815773A GB 815773 A GB815773 A GB 815773A GB 1462371 A GB1462371 A GB 1462371A
Authority
GB
United Kingdom
Prior art keywords
mineral
face
jet
nozzle
incision
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB815773A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Joy Global Industries Ltd
Original Assignee
Dobson Park Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dobson Park Industries Ltd filed Critical Dobson Park Industries Ltd
Priority to GB815773A priority Critical patent/GB1462371A/en
Priority to DE19742406893 priority patent/DE2406893C3/en
Publication of GB1462371A publication Critical patent/GB1462371A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/60—Slitting by jets of water or other liquid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Earth Drilling (AREA)

Abstract

1462371 Mining by jetting DOBSON PARK INDUSTRIES Ltd 13 Feb 1974 [20 Feb 1973] 8157/73 Heading E1F [Also in Division B2] Mineral is mined by making an incision in the mineral face using a high velocity liquid jet and then breaking away the mineral adjacent the incision using an impact device. The jet nozzle 23, which produces a high velocity cavitation liquid jet, can be used in combination with various mining machines, Figs. 1 to 3 (not shown). The nozzle is angularly adjustable by means of a ram 32, and movable towards and away from the face by means of a ram 25 controlled by a distance sensor 34a, 34b, or (34), Figs. 7 and 8 (not shown). Low pressure liquid may be applied to the mineral face at the point of application of the jet, and the jet may be pulsated so as to induce shock waves in the mineral face. In use, the nozzle is surrounded by a cowl (not shown) which makes fluid-tight contact with the face. The nozzle proper (46), Fig. 9 (not shown), is formed of flexible resilient material so that, by means of screws (47) its effective size and shape can be adjusted, and is provided with an adjustable cavitation-inducing insert (43).
GB815773A 1973-02-20 1973-02-20 Mining method and apparatus Expired GB1462371A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB815773A GB1462371A (en) 1973-02-20 1973-02-20 Mining method and apparatus
DE19742406893 DE2406893C3 (en) 1973-02-20 1974-02-13 Propulsion device, in particular for routes in mining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB815773A GB1462371A (en) 1973-02-20 1973-02-20 Mining method and apparatus

Publications (1)

Publication Number Publication Date
GB1462371A true GB1462371A (en) 1977-01-26

Family

ID=9846861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB815773A Expired GB1462371A (en) 1973-02-20 1973-02-20 Mining method and apparatus

Country Status (2)

Country Link
DE (1) DE2406893C3 (en)
GB (1) GB1462371A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736808A (en) * 1986-10-14 1988-04-12 Canadian Patents And Development Limited/Societe Canadienne Des Brevets Et D'exploitation Limitee Percussive tool with high pressure fluid jet
US5154347A (en) * 1991-02-05 1992-10-13 National Research Council Canada Ultrasonically generated cavitating or interrupted jet

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2713781C3 (en) * 1977-03-29 1983-02-24 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Process and device for the combined hydraulic-mechanical underground extraction of mainly hard mineral raw materials
DE2813142C3 (en) * 1978-03-25 1986-07-31 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Combined cutting tool for cutting minerals in contact with a mining work surface
DE2813143C3 (en) * 1978-03-25 1980-12-04 Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum Device for driving and expanding an underground route
CA1172244A (en) * 1981-12-29 1984-08-07 Charles W. Hammond Method and apparatus for removing deposits from highly heated surfaces
US4422882A (en) * 1981-12-29 1983-12-27 The Babcock & Wilcox Company Pulsed liquid jet-type cleaning of highly heated surfaces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736808A (en) * 1986-10-14 1988-04-12 Canadian Patents And Development Limited/Societe Canadienne Des Brevets Et D'exploitation Limitee Percussive tool with high pressure fluid jet
US5154347A (en) * 1991-02-05 1992-10-13 National Research Council Canada Ultrasonically generated cavitating or interrupted jet

Also Published As

Publication number Publication date
DE2406893B2 (en) 1975-05-28
DE2406893A1 (en) 1974-09-05
DE2406893C3 (en) 1976-01-08

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee