AP1656A - Rock breaking unit and apparatus - Google Patents

Rock breaking unit and apparatus

Info

Publication number
AP1656A
AP1656A APAP/P/2003/002935A AP2003002935A AP1656A AP 1656 A AP1656 A AP 1656A AP 2003002935 A AP2003002935 A AP 2003002935A AP 1656 A AP1656 A AP 1656A
Authority
AP
ARIPO
Prior art keywords
propellant
hole
unit
rock breaking
tube
Prior art date
Application number
APAP/P/2003/002935A
Other versions
AP2003002935A0 (en
Inventor
Peter J Jerling
Original Assignee
Jervent Mining & Ind Supplies Cc
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 Jervent Mining & Ind Supplies Cc filed Critical Jervent Mining & Ind Supplies Cc
Publication of AP2003002935A0 publication Critical patent/AP2003002935A0/en
Application granted granted Critical
Publication of AP1656A publication Critical patent/AP1656A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/007—Drilling by use of explosives
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
    • E21C37/12—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

In one aspect the invention relates to a rock breaking unit which can be used to break rock non-expiosively. The unit (12) has an elongate tube (56) which is inserted in use into a hole (11) in a rock mass. There is also a propellant (64, 74) in the tube, a fuse (62, 72) associated with the propellant, and a capsule (66,76) of liquid (68, 78) in the tube adjacent the propellant and situated to be closer to the mouth of the hole than the propellant when the tube is inserted into the hole. When the propellant is ignited there is a rock breaking action which is contained by the liquid. In another aspect the invention relates to rock breaking apparatus (10) which includes the unit (12) together with a plug (14) that serves to anchor and seal the unit in the hole. The plug itself includes a central, hollow bolt 16 and radially expandable elements (36, 38, 86) on the bolt which are expanded into anchoring and sealing contact with the wall of the hole when the bolt is tensioned.
APAP/P/2003/002935A 2002-06-28 2002-12-16 Rock breaking unit and apparatus AP1656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA200205220 2002-06-28

Publications (2)

Publication Number Publication Date
AP2003002935A0 AP2003002935A0 (en) 2003-12-31
AP1656A true AP1656A (en) 2006-09-01

Family

ID=33098633

Family Applications (1)

Application Number Title Priority Date Filing Date
APAP/P/2003/002935A AP1656A (en) 2002-06-28 2002-12-16 Rock breaking unit and apparatus

Country Status (1)

Country Link
AP (1) AP1656A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU934915A3 (en) * 1975-09-19 1982-06-07 Атлас Копко Актиеболаг /Фирма/ Method and machine for breaking rocks
SU976064A1 (en) * 1981-03-27 1982-11-23 Московский Ордена Трудового Красного Знамени Горный Институт Unit for thermal breaking of rock by jets of hot gas
SU1602984A1 (en) * 1988-03-21 1990-10-30 Специальное конструкторско-технологическое бюро Института геотехнической механики АН УССР Cutting unit of rock-breaking mine machine with centrifugal loading
RU2019691C1 (en) * 1991-05-24 1994-09-15 Казахский политехнический институт им.В.И.Ленина Device for breaking rocks and other mineral media
CA2409464A1 (en) * 2002-10-22 2004-04-22 Ferruccio I. China Device for breaking rocks and the like without explosives

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU934915A3 (en) * 1975-09-19 1982-06-07 Атлас Копко Актиеболаг /Фирма/ Method and machine for breaking rocks
SU976064A1 (en) * 1981-03-27 1982-11-23 Московский Ордена Трудового Красного Знамени Горный Институт Unit for thermal breaking of rock by jets of hot gas
SU1602984A1 (en) * 1988-03-21 1990-10-30 Специальное конструкторско-технологическое бюро Института геотехнической механики АН УССР Cutting unit of rock-breaking mine machine with centrifugal loading
RU2019691C1 (en) * 1991-05-24 1994-09-15 Казахский политехнический институт им.В.И.Ленина Device for breaking rocks and other mineral media
CA2409464A1 (en) * 2002-10-22 2004-04-22 Ferruccio I. China Device for breaking rocks and the like without explosives

Also Published As

Publication number Publication date
AP2003002935A0 (en) 2003-12-31

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