AP1656A - Rock breaking unit and apparatus - Google Patents
Rock breaking unit and apparatusInfo
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 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
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.
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)
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 |
-
2002
- 2002-12-16 AP APAP/P/2003/002935A patent/AP1656A/en active
Patent Citations (5)
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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