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WO2004088239A1 - Contenant d'explosion - Google Patents

Contenant d'explosion Download PDF

Info

Publication number
WO2004088239A1
WO2004088239A1 PCT/ZA2004/000038 ZA2004000038W WO2004088239A1 WO 2004088239 A1 WO2004088239 A1 WO 2004088239A1 ZA 2004000038 W ZA2004000038 W ZA 2004000038W WO 2004088239 A1 WO2004088239 A1 WO 2004088239A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
explosive
explosion container
drill hole
explosion
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.)
Ceased
Application number
PCT/ZA2004/000038
Other languages
English (en)
Inventor
Robert John STÖCKL
Christopher Richard Turvey
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU2004225449A priority Critical patent/AU2004225449A1/en
Publication of WO2004088239A1 publication Critical patent/WO2004088239A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F42D1/18—Plugs for boreholes

Definitions

  • This invention relates to explosion container for mining and construction use.
  • an explosion container comprising an elongated shank, a closure device at one end thereof which when the explosive container is homed is in close proximity to the explosive charge, and the retention means comprising the plurality of retention members that in use will be of greater dimensional diameter than the drilled hole, and are of a strength sufficient to deflect when the shank is being inserted into the drill hole but will have sufficient of strength to prevent or inhibit the explosive container from being moved outwardly of the drill hole when the explosive is detonated.
  • the retention members are preferably mounted on the shank. They are preferably disc-like in shape.
  • the closure device is also preferably generally disc-like in shape but is preferably concave to fit more closely on to the explosive charge.
  • the retention members preferably have lines of weakness which facilitate the collapse of the members when the container is being inserted into the drill hole. Such lines of weakness being preferably a number, usually four, preferably radial slots extending inwardly from the periphery of disc. Another line of weakness may be provided by "V"-shaped radially extending recesses formed in the members.
  • a longitudinally extending conduit is preferably provided for the container to house detonator wires leading to the explosive charge in the drill hole.
  • This conduit is preferably provided by enlarging the width of one set of aligned radial slots and preferably forming an aligned slot in the closure device.
  • the explosion container is preferably a plastic moulding.
  • a bore preferably runs along the length of the shank.
  • FIG. 1 is a perspective view of an explosion container of the invention
  • Figures 2, 3 and 4 are respectively side, front, and rear views of the explosion container
  • Figure 5 is a side view of an explosion container as used in a drill hole but with the detonator wires and withdrawal cable omitted in the interests of clarity
  • Figure 6 is a is a side view of the explosion container showing the location of the detonator wires and the withdrawal cable
  • Figure 7 is a side view of a tamping rod for use with the explosion container of the invention.
  • the explosion container 10 is a moulded monolithic plastic polyvinyl chloride member. It comprises an elongated shank 12 having a closure device 14 at one end and five retention members 16.
  • the shank 12 is of hollow circular section with an narrow bore 18 therethrough.
  • the closure device 14 comprises a dished member co-axially mounted on the end of the shank to present a concave face 20 to the explosive charge as will be described.
  • the diameter of the face 20 is sufficiently smaller than the diameter of the drill hole into which the explosion container 10 is to being inserted to permit it to pass down the drill hole.
  • the bore 18 opens centrally through the face 20.
  • the retention members 16 are generally circular disc-like members which lie in planes radial to the shank 12 and covering the bulk of the length of the shank 12. They are sufficiently flexible to be distorted when the inserted into a drill hole of slightly smaller dimension to take up a conical shape as shown in Figure 5.
  • Three narrow (possibly about 5 mm wide) radial slots 22 are provided in each member 16 extending inwardly from near the periphery 24 of the member, two 22.1 and 22.2 lying on a diameter of the members and a third 22.3 midway between the others.
  • the slots 22 in the members 16 are aligned.
  • a larger radial slot 26 (possibly about 10 mm wide) which is similar to the slots 22 is provided in each member 16 diametrically aligned with the slot 22.3.
  • a further slot 28 is formed in the closure device 14 aligned with and of the same width of the slots 28, and extending from the periphery of the device 14.
  • a tamping rod 30 is provided. This is conveniently a steel or other metal rod having a handle 32 at one end and reduced diameter 34 at the other end.
  • the explosion container 10 is used as follows in mining operations (and as best shown in Figure 5).
  • a drill hole 36 is drilled in a stope face, the diameter of which is slightly smaller than the diameter of the retention members 16.
  • An explosive charge 38 is tamped into the drill hole 36 hard up against the base thereof and with the detonator wires 40 (see Figure 6) extending out of the drill hole 36.
  • the wires 40 are fed through the channel formed by the slots 26 and 28 in the container 10.
  • the explosion container 10 is now pushed into the drill hole 36 by means of the tamping rod 30 with the reduced diameter end 34 engaging in the bore 18.
  • the edges of the members 16 engage the wall of the drill hole 36 and are distorted into a conical shape (as shown in Figure 5).
  • the explosion container 10 is pushed sufficiently deeply into the drill hole 36 that the closure device 16 engages the front end of the explosive charge 38.
  • the edges of the retention members 16 engage the side walls of the drill hole 36 and contain the explosion gases. The containment is necessary only in the initial phase of the explosion. This will cause the most effective use of the explosive.
  • a retraction cable 42 In use, it will be desirable to attach a retraction cable 42 to the container.
  • This cable 42 is attached between the front retention member 16 and the closure device 14.
  • the cable 42 is bent back on itself so that there are two lengths 44 and 46 which ran along the edges of the retention members 16. Should the explosive device not detonate, the retraction cable will be pulled from outside the drill hole. This will cause the parts of the retention members which it engages to collapse. Consequently the container will now be relatively free of the sides of the drill hole and can be removed.
  • the retention members may comprise separate materials mounted on the shank.
  • the shank may be generally of "U"- shape in section so that the electric wires can pass along the shank to the explosive charge.
  • the containment device may comprise any other material and in particular any other suitable polymer such for polystyrene, low and high density polymers.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne un contenant d'explosion (10) qui comprend une queue allongée (12), un dispositif de fermeture (14) à une extrémité qui, au moment où le contenant (10) est rattaché, se trouve à proximité d'une charge explosive (38), et un système de retenue qui comporte plusieurs éléments de retenue (16) ayant un diamètre supérieur à celui du trou de forage (36) et présentant une résistance suffisante pour dévier lorsque la queue (12) est introduite dans le trou de forage (36) et pour empêcher ou inhiber le déplacement du contenant (10) vers l'extérieur du trou de forage (36) au moment de la détonation de la charge explosive (38).
PCT/ZA2004/000038 2003-04-03 2004-04-02 Contenant d'explosion Ceased WO2004088239A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2004225449A AU2004225449A1 (en) 2003-04-03 2004-04-02 Explosion container

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200302571 2003-04-03
ZA03/2571 2003-04-03

Publications (1)

Publication Number Publication Date
WO2004088239A1 true WO2004088239A1 (fr) 2004-10-14

Family

ID=33132339

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2004/000038 Ceased WO2004088239A1 (fr) 2003-04-03 2004-04-02 Contenant d'explosion

Country Status (3)

Country Link
AU (1) AU2004225449A1 (fr)
WO (1) WO2004088239A1 (fr)
ZA (1) ZA200508955B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494576A (zh) * 2011-12-21 2012-06-13 鞍钢集团矿业公司 井下上向炮孔堵孔器
WO2014030139A1 (fr) * 2012-08-22 2014-02-27 Fowlds 3 Limited Dispositif de bourrage
RU176154U1 (ru) * 2017-06-13 2018-01-10 Алексей Николаевич Шустов Скважинное запирающее устройство
RU2649201C1 (ru) * 2017-02-13 2018-03-30 Алексей Николаевич Шустов Скважинное запирающее устройство
CN107976129A (zh) * 2017-12-09 2018-05-01 何洪彬 一种煤矿露天爆破炮眼填充固定装置
CN109539918A (zh) * 2018-12-24 2019-03-29 卢光亮 一种炮眼填塞装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061672B (de) * 1957-10-22 1959-07-16 Bergwerksverband Gmbh Besatzstopfen zum Verdaemmen von Sprengloechern
US2916995A (en) * 1956-05-17 1959-12-15 Du Pont Tamping plug
US3041973A (en) * 1959-03-27 1962-07-03 Benjamin F Sanders Recoverable tamping plug
GB914647A (en) * 1959-11-27 1963-01-02 John T Moss Ltd A plug for sealing a bore-hole
AU668946B2 (en) * 1992-06-15 1996-05-23 Orica Explosives Technology Pty Ltd Method of uphole loading

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2916995A (en) * 1956-05-17 1959-12-15 Du Pont Tamping plug
DE1061672B (de) * 1957-10-22 1959-07-16 Bergwerksverband Gmbh Besatzstopfen zum Verdaemmen von Sprengloechern
US3041973A (en) * 1959-03-27 1962-07-03 Benjamin F Sanders Recoverable tamping plug
GB914647A (en) * 1959-11-27 1963-01-02 John T Moss Ltd A plug for sealing a bore-hole
AU668946B2 (en) * 1992-06-15 1996-05-23 Orica Explosives Technology Pty Ltd Method of uphole loading

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494576A (zh) * 2011-12-21 2012-06-13 鞍钢集团矿业公司 井下上向炮孔堵孔器
WO2014030139A1 (fr) * 2012-08-22 2014-02-27 Fowlds 3 Limited Dispositif de bourrage
RU2649201C1 (ru) * 2017-02-13 2018-03-30 Алексей Николаевич Шустов Скважинное запирающее устройство
WO2018147763A1 (fr) * 2017-02-13 2018-08-16 Алексей Николаевич ШУСТОВ Dispositif de verrouillage de puits de forage
EP3628961A4 (fr) * 2017-02-13 2021-03-31 Mining Technologies RT JSC Dispositif de verrouillage de puits de forage
AU2017398371B2 (en) * 2017-02-13 2024-02-15 Oretech Estonia Oü Borehole plugging device
US11976913B2 (en) 2017-02-13 2024-05-07 Mining Technologies Rt Jsc Borehole plugging device
RU176154U1 (ru) * 2017-06-13 2018-01-10 Алексей Николаевич Шустов Скважинное запирающее устройство
CN107976129A (zh) * 2017-12-09 2018-05-01 何洪彬 一种煤矿露天爆破炮眼填充固定装置
CN107976129B (zh) * 2017-12-09 2020-01-24 内蒙古乌海市万源露天煤业有限责任公司 一种煤矿露天爆破炮眼填充固定装置
CN109539918A (zh) * 2018-12-24 2019-03-29 卢光亮 一种炮眼填塞装置

Also Published As

Publication number Publication date
ZA200508955B (en) 2007-03-28
AU2004225449A1 (en) 2004-10-14

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