WO2023184046A1 - Raccord de tuyau de chargement et suppresseur pour conduits ascendants dans une exploitation minière souterraine - Google Patents

Raccord de tuyau de chargement et suppresseur pour conduits ascendants dans une exploitation minière souterraine Download PDF

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Publication number
WO2023184046A1
WO2023184046A1 PCT/CL2022/050030 CL2022050030W WO2023184046A1 WO 2023184046 A1 WO2023184046 A1 WO 2023184046A1 CL 2022050030 W CL2022050030 W CL 2022050030W WO 2023184046 A1 WO2023184046 A1 WO 2023184046A1
Authority
WO
WIPO (PCT)
Prior art keywords
explosive
connecting device
opening
connect
booster
Prior art date
Application number
PCT/CL2022/050030
Other languages
English (en)
Spanish (es)
Inventor
Felipe Andrés PRADO FIGUERO
Original Assignee
Enaex Servicios Sa
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 Enaex Servicios Sa filed Critical Enaex Servicios Sa
Priority to PCT/CL2022/050030 priority Critical patent/WO2023184046A1/fr
Publication of WO2023184046A1 publication Critical patent/WO2023184046A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/02—Blasting cartridges, i.e. case and explosive adapted to be united into assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/26—Arrangements for mounting initiators; Accessories therefor, e.g. tools
    • 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
    • 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
    • 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
    • F42D1/22—Methods for holding or positioning for blasting cartridges or tamping cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D3/00—Particular applications of blasting techniques
    • F42D3/04—Particular applications of blasting techniques for rock blasting

Definitions

  • the present invention belongs to the area of the explosives industry used preferably in the mining industry.
  • the present invention relates to a connector for an explosive device or booster for upward shots, preferably used in underground mining.
  • boosters In the underground mining industry, the use of explosive devices for updrafts, commonly called boosters, is widely known. These devices are mainly configured as a cylindrical structure that contains a high-energy explosive initiating agent inside, and allows them to be protected from impacts and the explosive becoming wet. In this way, said explosive devices are inserted upward into channels or shafts made inside the mine. In some current solutions, to improve its insertion and maneuverability in said shots, a ballistic shape has been designed in its upper part in order to facilitate its movement. These devices allow the entry of the detonation cable to activate the explosion when required.
  • a connecting element attached to the device at one end and at the other end it is connected to a hose fed from the outside with explosive emulsion.
  • the assembly with the hose is inserted until the final position of the explosive device, and then by traction, the hose is removed.
  • US8261664 B2 describes a mobile explosives supply unit having several explosive component feeding units, such as a pump for feeding explosive components, such as fuel oil, into blasting shots.
  • the position of the holes is identified based on the coordinate position of the hole transmitted from the global positioning system (GPS) unit that is in communication with the hole identification processor.
  • GPS global positioning system
  • fluid explosives such as explosive emulsion, ammonium nitrate granules, diesel, water, sodium nitrite gas solution, etc.
  • US10557575 B2 describes a hose for transporting explosive emulsion, which has an internal surface that reduces interruption of the annular flow during the transport of explosive emulsion and the internal surface is hydrophytic with respect to the aqueous solution.
  • Document CN211855092U describes a deep shot blasting emulsion explosive loading device, in the existing technology, the explosive emulsion is transported to the problem in the blast shot;
  • the device comprises a funnel main body; the bottom of the main body of the funnel is provided with an outlet, the upper part of the main body of the funnel is provided with an annular plate of connection;
  • the connecting ring plate is installed horizontally and detachably with a spirit level.
  • the document indicates that the explosive emulsion that comes out of the hose is sprayed directly at high speed on the inner wall of the funnel; the bottom opening of the funnel falls into the explosion hole that needs to be loaded and exploded, and the funnel is installed on the funnel spirit level can be installed vertically, to ensure that the explosive emulsion is completely vertical to the loading position after pass through the funnel, and will not stick to the wall of the explosion hole.
  • US8381654B2 a method of moving a loading hose and nozzle along a blast shot along a direction of travel at a controlled speed.
  • An explosive emulsion is forced through the nozzle at a controlled pump rate such that the nozzle sprays the emulsion laterally relative to the direction of travel in an arc formation that extends around an axis of the nozzle when it moves. the mouthpiece, and,
  • the problem presented by the previously described solutions and those currently in use is the difficulty in removing the connecting element of the explosive device when placing it at the defined point, since generally an attempt is made to remove it by pulling, which can affect the final position of the device or, blocking may occur that does not allow the hose to be removed from the device.
  • the hose carries the detonator cable on the outside and pulling the hose can cut the cable.
  • the present invention relates to a connecting device to be used in an explosive device for updraft in underground mining.
  • the connecting device operates in conjunction with an explosive device or booster, to which it is connected at one of its ends, where said explosive device preferably has a head with a ballistic shape that allows the maneuverability of the booster in the hole with irregular walls.
  • the connecting device is in turn connected at its opposite end to a charging hose.
  • the assembly is arranged in a line, with the hose being arranged first, connected to the connecting device, which is also connected linearly to the explosive device or booster.
  • the invention is also related to the assembly made up of the connect device and the booster.
  • the connect device has geometric characteristics that allow improving coupling with the booster and increasing the viscosity of the emulsion. Through this geometry, the connect device allows solving the operational problem of the booster getting stuck in the rise of the hose for updraft loading.
  • the connect device is made of a material that is easy to produce and has a low coefficient of friction.
  • the connect device fulfills two functions in the charging system: first, it is a coupling between the hose and the booster, whose final 45° geometry allows the booster to fit, which makes the connection between hose and booster is rigid and robust, and in this way, they do not disengage during the ascent, causing the booster to get stuck.
  • the connecting device comprises holes arranged radially at 45° in an upward direction, which allow the booster using a flow to quickly decouple it from the connect device.
  • the holes in the connecting device increase the viscosity of the emulsion, which translates into better adhesion in the upward draft.
  • Figure 1 represents a perspective view of the connect device, according to one embodiment of the invention
  • Figure 2 represents a partial rear and front view of the connect device, according to one embodiment of the invention.
  • Figure 3 represents a side view with partial section of the connecting device, according to one embodiment of the invention.
  • Figure 4 represents a front view of the explosive device or booster, according to one embodiment of the invention
  • Figure 5 represents a front sectional view of the explosive device or booster, according to one embodiment of the invention.
  • Figure 6 represents a top view of the explosive device or booster, according to one embodiment of the invention.
  • Figure 7 represents a front sectional view of the connecting device assembly and the booster, according to one embodiment of the invention.
  • the present invention relates to a connecting device (100) to connect an explosive device or booster (200) with an explosive emulsion loading hose, and the assembly (1) that incorporates said device connecting (100) with the booster. (200)
  • the connecting device (100) is made up of two joined parts: a first part (10) configured to connect with the explosive device (200); and a second part (20) is configured to connect with the charging hose.
  • the external diameter of the first part (10) is greater than the external diameter of the second part (20).
  • the connecting device (100) comprises an input end face (21) arranged in the second part (20) and an output end face (11) arranged in the first part (10).
  • the inlet end face (21) comprises a flow inlet opening (22) arranged in the central part of said face (21).
  • Said inlet opening (22) connects with a front outlet opening (12) arranged in the center of the outlet end face (11) and with a plurality of transverse outlet openings (13).
  • Said transverse exit openings (13) are arranged equidistant from each other in a slot or perimeter recessed section (14).
  • Said recessed section (14) is configured as a V-shaped slot, whose preferred angle of said recessed section is 90°, composed of a front face (14a) and a rear face (14b), where the plurality of openings Transverse outlets (13) are arranged on the front face (14a).
  • the transverse exit openings (13) are arranged at an angle of 45° with respect to the longitudinal axis of the connecting device (100).
  • Said transverse outlet openings (13) are arranged in this way in order to use the pressure of the fluid or emulsion to be able to decouple the connecting device (100) from the explosive device (200), in order to remove the charging hose connected to the device. connect (100).
  • the number of transverse outlet openings (13) are four.
  • the diameter of each of the transverse outlet openings (13) is in the range of 3 to 5 mm. This range allows optimizing the viscosity of the flow and being able to decouple the connecting device (100) from the explosive device (200) by pressure, reducing the risk of overpressure in the line or that the explosive device (200) does not detach.
  • the diameter of each of the transverse outlet openings (13) is 4 mm.
  • the passage area of the transverse outlet openings (13) is at least four times the passage area of the front outlet opening (12).
  • the second part (20) of the connecting device (100) comprises connecting means (23) that allow said connecting device (100) to be joined with the end of the charging hose.
  • said connecting means (23) correspond to a male-type threaded connection, which is joined to the female-type charging hose.
  • the second part (20) of the connecting device (100) has a tightening element (24), which allows the threaded tightening with the charging hose to be carried out by means of an external element. Therefore, at the time of detaching the connecting device (100) from the explosive device (200), the structural connection between said connecting device (100) and the loading hose can be maintained as the latter is divided for removal.
  • the connector device (100) and the booster (200) an increase in the viscosity of the emulsion is achieved.
  • the original viscosity of the emulsion is 1,300,000 CPA, which increases to 1,800,000 CPA after passing through the connecting device (100).
  • the emulsion reaches the plant with densities between 1.37 and 1.42 g/cm 3 . After placing the additive, the density drops to 1.30 - 1.33 g/cm 3 . At the device output connector (100), the density of the emulsion is measured at 1.15 g/cm 3 , allowing favorable extraction of the hose together with the connector device (100).
  • the explosive device or booster (200) corresponds to a preferably cylindrical structure, which comprises a body (210) and a head (220) which has a configuration preferably with a ballistic shape in order to facilitate its upward movement of the assembly (1). , reducing the risk of jamming.
  • the base of the booster (200) comprises an opening (not shown), into which the connector device (100) is inserted under pressure to configure the assembly (1).
  • the upper part of the head (220) comprises at least two openings (230, 240), where one of the openings (230) is smaller in diameter than the other opening (240).
  • tubes (250, 260) extend into the interior of the booster (200), where the tube (250) of the smaller diameter opening (230) is longer than the other tube (260). ), where both tubes (250, 260) are joined in the upper interior part of the booster (200).
  • the tube (250) of the smaller diameter opening (230) comprises an opening at its lower end intended for the insertion of the detonator cable (270) that is inserted together with the connector device (100).
  • the detonator cable (270) extends through the tube (250) and passes to the next tube (260) at the top to be secured by a safety element, preventing it from being unintentionally released.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

La présente invention concerne un dispositif de raccord (100) pour raccorder un dispositif explosif (200) avec un tuyau de chargement d'émulsion explosive qui comprend deux parties reliées : une première partie (10) conçue pour se raccorder au dispositif explosif (200) et une seconde partie (20) conçue pour se raccorder au tuyau de chargement, ladite seconde partie (20) comprenant une ouverture d'entrée (22) à une extrémité et la première partie (10) comprenant une ouverture de sortie frontale (12) à une extrémité et une pluralité d'ouvertures de sortie transversales (13) disposées à équidistance les unes des autres dans une section surbaissée périphérique (14) conçue comme une rainure en forme de V. L'invention concerne aussi un ensemble explosif pour conduit ascendant dans une exploitation minière souterraine.
PCT/CL2022/050030 2022-03-30 2022-03-30 Raccord de tuyau de chargement et suppresseur pour conduits ascendants dans une exploitation minière souterraine WO2023184046A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CL2022/050030 WO2023184046A1 (fr) 2022-03-30 2022-03-30 Raccord de tuyau de chargement et suppresseur pour conduits ascendants dans une exploitation minière souterraine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CL2022/050030 WO2023184046A1 (fr) 2022-03-30 2022-03-30 Raccord de tuyau de chargement et suppresseur pour conduits ascendants dans une exploitation minière souterraine

Publications (1)

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WO2023184046A1 true WO2023184046A1 (fr) 2023-10-05

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1872586A (en) * 1931-08-29 1932-08-16 Arthur W Helmholtz Separation device for pipe lines
WO1996029567A1 (fr) * 1995-03-23 1996-09-26 Bofors Liab Ab Procede et dispositif d'introduction de charges de renforcement dans les trous de forage
US6520089B1 (en) * 1999-06-18 2003-02-18 Dynaenergetics Gmbh & Co. Kg Method for setting and igniting a charge of explosives for geological investigations and explosive device associated therewith
WO2014030139A1 (fr) * 2012-08-22 2014-02-27 Fowlds 3 Limited Dispositif de bourrage
CN104949592A (zh) * 2015-03-30 2015-09-30 深圳市金奥博科技有限公司 用于喷射混装乳化炸药的喷射增黏装置
EP3141695A1 (fr) * 2015-09-09 2017-03-15 Dominique Balleur Système et procédé de fracturation d'un matériau solide
CN207214932U (zh) * 2017-09-06 2018-04-10 深圳市金奥博科技股份有限公司 喷射增粘装置
CN215447610U (zh) * 2021-02-05 2022-01-07 广东中人岩土工程有限公司 一种液态二氧化碳相变破岩的宽适性致裂管

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1872586A (en) * 1931-08-29 1932-08-16 Arthur W Helmholtz Separation device for pipe lines
WO1996029567A1 (fr) * 1995-03-23 1996-09-26 Bofors Liab Ab Procede et dispositif d'introduction de charges de renforcement dans les trous de forage
US6520089B1 (en) * 1999-06-18 2003-02-18 Dynaenergetics Gmbh & Co. Kg Method for setting and igniting a charge of explosives for geological investigations and explosive device associated therewith
WO2014030139A1 (fr) * 2012-08-22 2014-02-27 Fowlds 3 Limited Dispositif de bourrage
CN104949592A (zh) * 2015-03-30 2015-09-30 深圳市金奥博科技有限公司 用于喷射混装乳化炸药的喷射增黏装置
EP3141695A1 (fr) * 2015-09-09 2017-03-15 Dominique Balleur Système et procédé de fracturation d'un matériau solide
CN207214932U (zh) * 2017-09-06 2018-04-10 深圳市金奥博科技股份有限公司 喷射增粘装置
CN215447610U (zh) * 2021-02-05 2022-01-07 广东中人岩土工程有限公司 一种液态二氧化碳相变破岩的宽适性致裂管

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