EP3559590A1 - Système d'abattage à l'explosif - Google Patents

Système d'abattage à l'explosif

Info

Publication number
EP3559590A1
EP3559590A1 EP17832035.4A EP17832035A EP3559590A1 EP 3559590 A1 EP3559590 A1 EP 3559590A1 EP 17832035 A EP17832035 A EP 17832035A EP 3559590 A1 EP3559590 A1 EP 3559590A1
Authority
EP
European Patent Office
Prior art keywords
recess
detonator
protective plate
blasting
borehole
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.)
Granted
Application number
EP17832035.4A
Other languages
German (de)
English (en)
Other versions
EP3559590B1 (fr
Inventor
Kuno Moser
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
Publication of EP3559590A1 publication Critical patent/EP3559590A1/fr
Application granted granted Critical
Publication of EP3559590B1 publication Critical patent/EP3559590B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/045—Arrangements for electric ignition
    • 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

  • the invention relates to an explosive system in which explosive is ignited in a borehole.
  • the invention shows a method according to the invention for blasting and a blasting arrangement therefor.
  • a detonator with detonating cord in which the explosive is housed in a cup-shaped housing, in the upper, open end of a fuse is introduced.
  • the fuse shows a polyethylene outer sheath that shows a hemp liner and a powder core that burns at one end ignited by the detonator cord and detonates the explosive in the primer.
  • Such detonator with detonating cord is used in military and civil explosives. This blasting system shows no special precautions to secure the blasting process.
  • German patent DE 41 36 096 Cl a device for introducing an explosive charge into a well known in which a detonator screwed onto the lower end of a sleeve of the device and the detonator is then inserted from above into the sleeve until a secure ensures a mechanical connection between the detonator and the explosive cartridge, which enables the detonator to reliably ignite the detonating cartridge.
  • the sleeve is then fully inserted into the wellbore by means of a drill string and released at the bottom of the wellbore so that the explosive cartridge and igniter can remain there and be ignited.
  • this device it is possible to make the introduction of the explosive cartridge with the detonator and in particular the release of the same at the bottom hole fairly safe.
  • This device does not disclose a solution for securing the persons involved.
  • the device and method use one or more explosive charge devices arranged in one Housing are housed, and an associated ignition circuit.
  • the ignition circuit includes a fuse with at least two juxtaposed explosive ⁇ lines with longitudinal surfaces which are separated by at least one permeable wall that promotes the cross burning of explosive lines.
  • the well tool shows a tubular gun section with two ends closed by means of two tandem sections. In each of the two tandem sections is an ignition device with which a fuse can be ignited, which extends from one tandem section over the tubular gun section to the other tandem section and which continuously burns from their ends continuously.
  • the mold charges in the tubular gun section are ignited one behind the other, so that the borehole blasting tool generates a sequence of several blasts.
  • the borehole blasting tool is used in various underground borehole areas. In particular, it is used to perforate an oil or gas well deep underground.
  • the described borehole blasting system and method do not show any additional measures to protect the persons involved, as it is used very deep in the earth's crust.
  • the object of the invention is to provide a method for blasting or a blasting arrangement for detonating a detonator introduced into a borehole, which improves the safety of the persons involved in the vicinity of the detonation, especially in the case of near-surface detonations.
  • This object is achieved by an explosive device for detonating a detonator introduced into a borehole with the features of claim 1 and a method for blasting with the features of claim 20.
  • the blasting process according to the invention shows several essential steps which can be carried out in different orders. These steps include:
  • a detonator according to the invention which is arranged in the borehole and extends in the direction of the recess in the protective plate and is ignited, it is possible to significantly reduce the risk that persons involved in the blasting can hit involved persons, since the protective plate Retains this blasted material to a considerable extent, without the handling in particular the introduction of the detonator capsule in the well is substantially impeded.
  • a detonator which protrudes above the well up out of the ground and is positioned so that when igniting the blasting particularly preferably the upper end of the detonator at least partially closes the recess in the protective plate, a very efficient protection is provided.
  • the upper end of the detonator particularly preferably projects into or into the recess. This ensures that the risk that material released by the blast can pass through the recess and strike involved persons is considerably reduced.
  • the inventive provision of the protective plate above the bore for receiving the detonator with the explosive, this protective function is further enhanced.
  • the time of introduction of the detonator in the well, in particular with a projection over the upper edge of the well can be done at different times of the procedure. It can be done before the flush application of the protective plate on the ground or even after this, so that advantageously Risk of damage to the detonator due to a misalignment of the protective plate relative to the wellbore is largely excluded, especially in the lateral direction. This leads to a particularly safe method according to the invention.
  • the blasting in particular to the Underground and less to concentrate on the surface and thereby bring the explosive power into the underground more efficiently. This makes it possible to improve the efficiency of the blasting, that is, with less explosive can be achieved a better or the same explosive effect, as well as to reduce the risk for nearby people or equipment.
  • the preferred positioning of the detonator can be realized with a supernatant over the upper edge of the borehole by a variety of measures, which together serve the important purpose of ensuring a closed as possible protection of the protective plate and at least partially closed recess in the protective plate.
  • the projection of the detonator can be ensured by providing projections on the outside of the typically cylindrical detonator in the lateral direction, which prevent further lowering or changing of the altitude in the borehole. This can for example be achieved in that in the region of the lid projections or a lid with such Diameter is provided, which is larger in size than the borehole in its diameter.
  • the protective plate is placed with the recess on the ground, wherein the recess of the protective plate is positioned in alignment over the planned hole, and then drill through the recess in the ground a blast hole. Thereafter, the detonator is introduced into the wellbore, this through the recess of the protective plate he follows.
  • This protrude into the recess of the protective plate according to the invention causes the reduction of the free recess in the protective plate causes the desired advantageous improvement of the protective effect in blasting in terms of the environment and on the other hand in terms of a more efficient blasting.
  • inventively preferred order of steps it is possible to minimize the risk of misfiring, ie unwanted ignition of the detonator, because the introduction of the detonator takes place subordinate to all drilling and positioning of the protective plate, so that none of these measures, for example sparking or the like, an unwanted, avoidable triggering of a detonation can cause.
  • the introduction of the detonator through the recess in the well is particularly reliable possible because the aligned arrangement of the recess is ensured to the well.
  • the ignition of the detonator is made particularly reliable by the preferred in or through collar of the detonator in or through the recess in comparison to the advantageous aligned arrangement of the detonator with the recess.
  • the blasting methods according to the invention thus prove to be extremely safe. They also prove to be very efficient, as the explosive effect in the ground can be concentrated by the protective plate and thus an inefficient escape of the explosive power to the surface into the air can be avoided. Especially the safety of people in the area can be particularly increased by this method according to the invention, since the surface of the surface to be blasted in the blasting area is covered by a protective plate and thus a flying around of stones from the ground is completely or significantly limited.
  • the invention relates in addition to the method according to the invention also an explosive device according to the invention for blasting a introduced into a well explosive capsule with a carrier, said carrier has at least one arranged on the carrier protection plate with a recess, wherein the carrier is arranged a drilling module, which is for introducing a Borehole is suitable and provided in the ground, wherein on the carrier an explosive module is arranged, which is suitable for introducing a detonator into a borehole in particular with a supernatant over the ground and is provided, and wherein on the carrier an ignition module is arranged, which is suitable and provided for the ignition of a projecting into the recess of the protective plate detonator.
  • the described blasting arrangement according to the invention contains a plurality of modules, the drilling module, the blasting module and the ignition module, which are mechanically connected via a carrier to the protective plate and thus form an integrated arrangement which makes it possible to carry out the method according to the invention wholly or at least substantially.
  • the explosive module is suitable and intended to bring a detonator containing the explosive so in a drilled by means of the Bohrmoduls borehole that the detonator is aligned with the recess in the protective plate and preferably a supernatant over the Subsurface, so has the upper end of the borehole.
  • This preferred projection of the detonator projects into the recess of the protective plate and thus closes the unhindered passage through the recess from the substrate covered by the protective plate or from the drill hole to the area above the protective plate.
  • This at least partially closing the recess ensures that in the case of a blast with the help of the detonator in the borehole, which forms the blast hole, particles of the ground can not or only to a very limited extent pass through the recess and persons in the vicinity of the blast or Damage equipment in the vicinity of the blast.
  • the recess and the upper part of the detonator are preferably adapted to each other so that only a narrow gap between the upper part of the detonator, in particular its lid, and the edge of the protective plate of the recess remains. By providing a narrow gap is on the one hand ensures good handling and introduction of the detonator in the recess and on the other hand, a very high level of security during detonation.
  • the carrier which connects the various modules with the protective plate, in addition to a receptacle for connection to a transport vehicle, in particular an excavator. This makes it possible to design the blasting arrangement by the transport vehicle, in particular by the excavator, so to make his positioning variable and / or manipulated to make.
  • the carrier with the recording for connection so that on the one hand, the entire arrangement by the transport vehicle, in particular by the excavator to the desired position, ie in the position of the desired detonation and thus the hole to be drilled hole or borehole, can be moved and on the other hand to manipulate the explosive device so that in particular the individual modules by means of the transport vehicle, in particular the excavator, can be operated.
  • This is preferably done by appropriate coupling of hydraulic and / or pneumatic drive circuits and in particular by actuators, which are provided in the transport vehicle, in particular in the excavator to actuate the individual modules of the explosive device according to the invention from the transport vehicle, in particular from the excavator.
  • a preferred, advantageous sprinkler arrangement is characterized in that the drilling module, the explosive module and the ignition module are arranged on the carrier in an annular manner around the recess in the protective plate and above it and in each case in a working position and out of this are conveyed.
  • the working position of the individual modules does not have to be identical, but can be differentiated specifically. Due to the annular arrangement of the modules above and around the recess a very compact arrangement above the recess and thus created above the protective plate, on the one hand enables the implementation of the method and on the other hand ensures reliable protection of the modules during blasting.
  • the blasting module in particular the blasting arrangement in total, without electrical drives and provide only pneumatic, hydraulic and / or mechanical drives for the explosive device, and bring the blasting caps in wells in the manner according to the invention, so that the blasting capsules preferably remain with a supernatant over the substrate.
  • the other modules of the explosive device according to the invention in particular the drilling module and / or the transport vehicle, in particular the excavator, are preferably not provided with electric drives in order to increase the safety, albeit slightly, even further.
  • the lid of the detonator can be absorbed by the recess and the recess corresponds in particular in shape and / or in size to the cross section of the detonator and / or the lid of the detonator.
  • This makes it possible, on the one hand, for the lid to protrude into or through the recess, and, on the other hand, a gap formed between the lid of the detonator and the protective plate in the region of the recess can be small in the surface relative to the surface of the recess or relative to the recess Cross-section of the detonator or the size of the lid is.
  • the risk of passing material from the blasted surface through the protective plate in the region of the recess is greatly reduced, which substantially improves the desired safety for devices or devices in the environment or for humans or animals.
  • the lid of the detonator it has also proven to form the lid of the detonator so that it is larger in cross-section than the rest of the capsule, whereby the supernatant can be achieved on the ground in a particularly simple manner by the diameter of the borehole corresponding to the other capsule of lesser Diameter is chosen as the lid.
  • the lid thus sits in the region of its lateral projection with respect to the rest of the capsule on the surface of the substrate, which is preferably chosen so that the lid protrudes at least partially into the recess of the protective plate.
  • the cover thus preferably shows a height which corresponds at least to the distance between the surface of the substrate or of the upper edge of the borehole and the lower edge or lower side of the protective plate or the lower edge of the recess.
  • the shape and the size of the cover or the cross-section in the upper region of the detonator of the recess correspond.
  • both are chosen with a circular cross-section with a corresponding radius. This creates a particularly simple handling of the explosive device.
  • a particularly preferred sprinkler arrangement is characterized in that the protective plate is provided on the underside with at least one support, in particular a plurality of supports, for resting on the ground.
  • the at least one support or the plurality of supports preferably surround the recess partially or completely annularly.
  • the invention also ensures that the aligned arrangement of the recess is particularly guaranteed to the borehole and the introduction of the detonator works particularly well in the aligned arrangement of recess and borehole.
  • one or more chain elements that is parts of a chain with a plurality of links, on the underside of the protective plate. These are preferably arranged in the region around the recess. They ensure that during demolition stones and chunks of the subsoil are slowed down and thus less penetrate under the protective plate into the surroundings of the protective plate. It has proven particularly useful to arrange the chain elements on the bottom so that they enclose the recess at least partially and thereby decelerate the ground in the blasting in this direction, which is particularly effective in the case when the recess completely in particular by several trains enclosed in rows chain elements in the manner of a chain curtain is enclosed. This is one created particularly reliable and safe blasting arrangement that ensures a particularly reliable protection of the environment.
  • the drilling module, the explosive module and / or the ignition module prefferably be movable in or on the carrier in such a way that the drilling module can be conveyed beyond the recess in the protective plate and away from it.
  • This conveyor it is possible to move the modules between a working position and a rest or storage position and secure.
  • the drilling module has proved to be particularly advantageous to provide the drilling module with a drilling depth limit, which limits the drilling depth preferably about the length of the detonator minus the thickness of the protective plate.
  • the thickness of the protective plate including the height of the potentially existing, preferred support or supports to understand.
  • the drilling module creates a borehole suitable for receiving the detonator and for ensuring that the detonator protrudes from the borehole.
  • This is done with a supernatant, which preferably corresponds approximately to the distance of the protective plate from the ground and thus also ensures that the detonator in particular protrudes with its cover in the recess in the protective plate and this largely protrudes through this recess.
  • a very reliable acting explosive device is created, which greatly limits the passage of blasted material through the recess and thus significantly reduces the safety of the environment, be it for humans or animals, or even for devices in the environment.
  • the drilling module with a conveying device for removing the drilling space from the region of the recess.
  • this conveyor it is possible to reliably remove the drilling fluid of the ground and thereby make the well for the detonator freely accessible, which ensures the functionality of the detonator in particular.
  • the drilling space is removed adjacent to the wellbore or in the area of the wellbore, so that this drilling space, driven by the blast, can not be moved out through the recess or laterally under the protection plate and endanger people or other objects in the environment.
  • this provision of a boom removal conveyor proves to be particularly useful in terms of safety.
  • a preferred development of the explosive device according to the invention shows an explosive module with a storage area for detonators, from which by means of a Sprenkapsel divoriques a detonator removable and in the well, in particular through the recess in the protective plate can be conveyed.
  • a storage area for detonators, from which by means of a Sprenkapsel divoriques a detonator removable and in the well, in particular through the recess in the protective plate can be conveyed.
  • this storage area in particular a removable cassette to hold several Removable explosive capsules, it is possible to protect the storage area additionally by foreclosure measures, for example by an additional closed housing, from damage or unwanted removal of detonators in the storage area or in the cassette or in the removable cassette for removable detonators and thereby the To further promote the safety of the explosive device according to the invention.
  • this makes it possible to prevent damage to the detonators in the storage area in the explosive module in a special way.
  • the ignition module of the explosive device is provided with a device for annularly enclosing a projecting into a well, the recess wholly or partially filling explosive capsule, wherein the device is designed so that in the closed state, the gap between the protective plate and the Can completely or largely cover the detonator capsule in the region of the recess and thus the risk of passing blasted material through the gap of the recess is further reduced.
  • a kind of lid which is applied over the detonator in the region of the recess when the detonator does not protrude beyond the recess and thus on the protective plate.
  • the device for annular enclosing is preferably brought from the side to the detonator, thereby reducing or, ideally, completely closing the passage of the gap.
  • the device for annular enclosing preferably shows a plurality of segments, which together the enclose outstanding part of the detonator.
  • the ignition module has resilient contacts for electrically contacting the ignition contacts on the detonator and / or a device for checking the electrical contact.
  • the ignition module with a device for checking the electrical contact, which makes it possible, for example, based on the electrical properties of the contact a statement about the correct electrical contact of the ignition is given to the ignition contacts of the detonator. For example, this can be done on the basis of the resistances or the conductivity or also by means of temperature measurements or the like or a combination of several measurement parameters.
  • the device for checking the electrical contact is a special safe electrical contact for ignition and thus created a particularly reliable ignition module for the explosive device according to the invention.
  • the detonator With the various ways to form a detonator, it has proven particularly useful to provide the detonator with a cup-shaped housing with lid and arranged thereon ignition contacts for igniting the explosives arranged in the housing.
  • the ignition contacts are preferably circular or annular and electrically isolated from each other.
  • By arranging the ignition contacts on the lid and preferably on the cover ⁇ surface it is possible to ensure a secure electrical contact with the detonator due to the aligned arrangement with the recess. This is particularly true when the protruding preferably from the wellbore part of the detonator, in a particularly preferred manner protrudes into the recess of the protective plate or protrudes through it.
  • the ignition contacts on the cover in the form of circular or annular ignition contacts, it is possible to make the contacting less sensitive and thereby to allow a more reliable electrical contact for ignition.
  • the cup-shaped housing and the lid are preferably selected from a rigid material preferably made of a metal or a hard plastic.
  • the ignition contacts arranged on the lid, in the region of the bottom of the cup-shaped Housing arranged explosive and arranged in the housing in the region of the lid filler manages to realize a detonator, which is particularly suitable for this invention Sprengan extract or the method according to the invention.
  • the filler does not contain any explosives and is formed, in particular, from sand, which is optionally provided with additional air.
  • the blasting arrangement shows an explosive effect which is directed less towards the lid with the ignition contacts arranged thereon and thus in the direction of the recess in the protective plate.
  • the blast is directed by this arrangement primarily in the lateral direction or downwards and thus destroys the ground, which is the preferred target of the blasting arrangement according to the invention and is particularly effective.
  • various inert materials have been proven.
  • the preferred material is sand or granules.
  • the detonator In addition to the particularly advantageous possibility to provide the detonator with a cup-shaped housing with a lid, it has proven itself alternatively to bring the explosive and the filling material in the cup-shaped borehole without additional housing, whereby the borehole takes over the function of the housing of the detonator. As a result, it is possible to dispense with the additional housing and nevertheless ensure reliable ignition and detonation via ignition wires extending from the ignition module to the explosive.
  • the blasting arrangement is monitored with the various modules via a controller, in particular a central controller.
  • the controller monitors the functionality of the ignition module with the detonator capsules or in particular in the manner of a watchdog monitoring.
  • a video surveillance device which makes it possible to monitor the correct handling of the ignition module or other components in particular the whole explosive device and or or the correct function of the ignition module or the other modules and thus optionally also the entire explosive device to monitor correct operation.
  • the ignition module can trigger the explosion and ignite the detonator in the well with the overlying guard plate.
  • This monitoring in the explosive device itself allows a very universal use of the explosive device.
  • the components are particularly protected by this integrated structure, especially by the protective plate on which the carrier is arranged with the various components of the explosive device, from damage by blasted material. As a result, the functionality of the explosive device according to the invention is guaranteed in a special way.
  • Fig. 1 is a schematic representation of a vertical
  • Fig. 2 is a schematic representation of a horizontal
  • Fig. 3 is a schematic representation of a
  • a vertical section along the diagonal is represented by the explosive device 1 according to the invention in a schematic representation.
  • Blasting arrangement 1 for detonating a detonator capsule 10 introduced in a borehole 2 shows a protective plate 4 which has a recess 5 in the central area.
  • the recess 5 shows a circular cross-section.
  • the protective plate 4 is formed of solid, 4 cm thick steel and is a rectangular plate.
  • the protective plate 4 is fixedly connected to a support 3 which is fixed in the manner of a cage on the protective plate 4 and the various other components of the blasting arrangement. 1 carry and record so that they can be manipulated, moved and changed according to their function.
  • To the lateral, vertical parts of the support 3, which is formed of steel bars with a square cross-section, the drilling module 6, the explosive module 7 and the ignition module 8 and a conveyor device 9 are arranged for removing the drilling space.
  • the drilling module 6 and the ignition module 8 are shown schematically in Fig. 1.
  • the two modules 6, 8 can be moved horizontally into an area above the recess 5 and be moved from this back into the illustrated original rest position.
  • the drive for this movement is carried out by means of a hydraulic drive.
  • the protective plate 4 has on its underside a wedge-shaped in cross-section support 19, which allows a secure state of the explosive device 1 with the protective plate 4 on the substrate 21.
  • the support 19 encloses the recess 5 annularly at a pronounced distance, in which the support 19 is arranged in the edge region of the protective plate 4.
  • Fig. 1 a situation is shown in which the protective plate 4 is arranged with the recess 5 above a borehole 2 with this aligned.
  • the detonator 10 is introduced, the cover 12 is seated on the surface of the substrate 21, in which the borehole 2 is introduced, and further sinking of the detonator 10 in the ground 21 and the borehole 2 prevented.
  • the lid 12 shows a height which is greater than the height of the support 19 increased by the thickness of the protective plate 4.
  • This height of the lid 12 ensures that the detonator 10 with its cover 12 over the borehole 2 and on the upper Edge of the borehole 2 projects and in the recess 5 of the protective plate 4 in and in this exemplary case on this protective plate 4th out and through this recess 5 protrudes.
  • a small and largely uniform gap 18 remains on the one hand allows a good introduction of the detonator 10 with its lid 12 in the recess 5 and on the other hand, an undesirable Penetration of material from the subsurface 21 during blasting, although not completely prevented at all.
  • the gap 18 is typically less than 1 cm wide.
  • the explosive device 1 was placed on the substrate 21 and then moved the drilling module 6 horizontally via the recess 5 in the working position 5a to produce vertically there by means of a drill the borehole 2.
  • the drill of the drilling module 6 is moved through the recess 5 and drilled in the ground 21, the borehole 2.
  • the conveyor device 9 for removing the drill chamber is moved into the working position 5 a above the recess 5 and conveys the bore space from the borehole 2 and from the area below the protective plate 4 in the region of the recess 5 by means of compressed air. This provides a cleaned and freely accessible Borehole 2 created in the underground 21.
  • the blasting module 7 shows a storage area for detonators, which is an exchangeable cassette contains for receiving a plurality of removable detonators 10.
  • the detonators 10 in the removable cassette are protected against external undesired influences, in particular against mechanical, electrical or other interfering influences, whereby unintentional ignition of the blasting caps 10 can be prevented.
  • a detonator 10 is removed and conveyed vertically through the recess 5 in the wellbore 2 until the detonator 10 is seated with its lid 12 on the edge of the borehole 2.
  • the housing 11 of the detonator 10 has a thinner diameter than the borehole 2, while the lid 12 of the detonator 10 has a significantly larger diameter than the borehole 2, so that the lid 12 can not slide into the borehole 2 and thus on the rim of the borehole 2 and thus seated on the surface of the substrate 21.
  • the blasting module 7 is moved horizontally back to the rest position in the blasting arrangement 1.
  • the ignition module 8 is moved horizontally into the working position 5 a above the recess 5. Below the ignition module 8, the cover 12 protrudes through the recess 5. With the help of the ignition module 8, the ignition contacts 15 are contacted on the top of the lid 12 and the detonation of the detonator 10 in the borehole 2 triggered.
  • the illustrated blasting arrangement it is possible to assign the position of the borehole 2 and the recess 5 and the correct introduction of the Detonator 10 with the lid 12 through the recess 5 into the well 2 to realize very accurately. This ensures particularly defined explosive situations and thus enables a particularly reliable blasting result.
  • the protective plate 4 With the recess 5, which is essentially closed by the lid 12 of the detonator 10, it is also prevented that blasted material of the substrate 21 is catapulted upward and the components of the blasting arrangement 1 according to the invention above the protective plate 4 in particular the modules 6, 7, 8, 9 can damage.
  • the protective plate 4 in conjunction with the largely closed recess 5 that thrown by the blasting materials of the ground can not overcome the protective plate 4 and thereby the possibility is created that persons or animals or other objects that are in the field Blowing up, are at high risk.
  • the lid 12 of the detonator 10 is formed so that it is not destroyed by the explosion, but it remains intact and continues to close the recess 5 until it is released from this and removed.
  • the explosive device 1 of the invention is set to a different position, wherein this is done so that the recess over the desired position of the blast, ie on the desired, to be generated wellbore 2 for receiving the detonator 10 is created according to the method according to the invention for blasting.
  • FIG. 2 the position of the drilling module 6, the blasting module 7, the ignition module 8 and the conveyor device 9 for removing the drilling space above the protective plate 4 is shown in a schematically represented cross section Support 3 shown.
  • the horizontal travels from the rest position to the working position 5a above the recess 5, which is positioned above the planned, provided borehole 2, can be seen.
  • the protective plate 4 protrudes beyond the base of the carrier 3, the cage-like, the other components of the explosive device according to the invention, in particular the various modules 6, 7, 8, 9 encloses.
  • the bottom plate 4 is formed so that it is larger than the subterranean blasting area, ie the area of the substrate 21, which is loosened by the blasting.
  • the carrier 3 is provided with a receptacle 20 for connection to an excavator.
  • a connection can be made with an excavator, by means of which the blasting arrangement 1 can be transported and transported by means of the excavator to the desired locations at which a blast is provided.
  • the blasting module 7 is connected to and supplied with the hydraulic circuit of the excavator for operating the drives of the various modules. With this connection, it is possible that the entire explosive device 1 is moved exclusively by hydraulic drives and not by electric drives.
  • the drilling module 6 is moved via a hydraulic drilling drive and the blasting capsules 10 are removed from the storage area for detonators 10 and conveyed to convey them into the generated wellbore 2 through the recess 5.
  • a hydraulic drilling drive By not providing electric drives and replacing them with hydraulic drives, it is possible to reduce the risk of sparking and thereby noticeably increase the safety of the blasting module 7 and of the blasting arrangement 1 according to the invention.
  • FIG. 3 an exemplary detonator 10 is shown in a longitudinal section.
  • the detonator 10 shows a cup-shaped housing 11 made of aluminum and a lid 12 which closes the cup-shaped housing 11.
  • the explosive 16 is arranged in the region of the bottom.
  • a filler 17 is introduced into the housing 11.
  • the filler 17 consists essentially of quartz sand.
  • Above the filler 17 is an air volume which is closed vertically by the lid 12.
  • the cover 12 has on its upper side, which faces away from the housing 11, a central ignition contact 15 and this central ignition contact 15 enclosing, spaced therefrom and electrically insulated, annular second ignition contact 15.
  • the ignition contacts 15 are connected via not shown ignition lines to the explosive 16 and can be brought by applying a firing voltage explosive 16 to the explosion.
  • the layered arrangement of explosive 16 and filler 17 with the overlying air volume it is possible to dampen the blasting effect in the direction of the lid 12 and thereby direct the primary blasting effect down towards the bottom or laterally to the side of the housing 11. This leads to a special effective blasting of the subsoil 21 in the area of the borehole 2 filled with the detonator 10.
  • the detonator 10 is chosen from its dimensions so that the housing 11 and the cover 12 each have a circular cross-section, whereas the housing 11 has a smaller diameter than the cover 12.
  • the resulting thereby lateral projection 13 of the lid 12 prevents according to the invention in that the detonator 10 can sink completely into the borehole 2 during insertion, since the borehole 2 into which the detonator 10 is to be introduced is larger in diameter than the diameter of the housing 11 but smaller than the cover 12.
  • the cover 12 comes to lie on the surface of the base 21 or on the upper edge of the borehole 2 and a further penetration of the detonator 10 into the borehole 2 is prevented.
  • a defined positioning of the explosive 16 and thus the center of the blasting effect in the ground 21 are defined particularly reliably, which leads to a particularly safe detonation.
  • the height of the cover 12 is chosen so that it is at least equal to the distance between the lower edge of the recess 5 to the surface of the substrate 21 and thus to the upper edge of the borehole 2.
  • the thickness of the lid 12 is selected to be slightly larger than the sum of the aforementioned distance corresponding to the height of the support 19 and the thickness of the protective plate 4. This ensures that the top of the lid 12 with the Ignition contacts 15 protrudes vertically over the recess 5 and the protective plate 4 and thereby a very simple and reliable ignition over the easily accessible Ignition contacts 15 can be achieved with the help of the ignition module 8.
  • the cover 12 also has a diameter and a shape which is larger than the borehole 2 and also corresponds to the recess 5 in the protective plate 4, wherein the diameter is chosen somewhat smaller, in particular about 1 cm smaller than the diameter of the recess 5.
  • Both, the recess 5 as well as the lid 12, show a circular cross-section.
  • the cover 12 is preferably formed from an electrically insulating plastic, in particular from a material with the designation PE1000, which represents a polyethylene. This proves to be very stable in terms of the mechanical stress due to blasting as well as a good insulator that allows reliable ignition of the explosive 16 via the ignition contacts 15.
  • FIG. 4 shows a particularly preferred sequence of the method according to the invention for blasting.
  • a blasting arrangement 1 according to the invention as shown for example in FIGS. 1, 2 and 3, used.
  • a protective plate 4 is applied with a recess 5 on the substrate 21 so that the recess 5 comes to rest above the desired position of the borehole 2 and thus the position of the blast.
  • a drilling device which is formed for example by the drilling module 6, a hole 2 drilled below the recess 5, wherein the drill of the drilling module 6 is passed through the recess 5 and thereby targeted the borehole 2 positioned so that the borehole second aligned with the recess 5.
  • the wellbore 2 can be cleared of the drilling space before the detonator 10 is inserted into the wellbore.
  • the detonator 10 protrudes with its upper end due to the flushing of the borehole 2 with the recess 5 through the recess 5 through, which is accompanied by an overhanging and protruding through the detonator by the protective plate 4.
  • the detonator 10 has been introduced with the vertical projection 14, this is ignited in this position by the on the top of the detonator 10th arranged ignition contacts 15 are acted upon by the ignition voltage.
  • This sequence of steps makes it possible to ensure a very safe process of preparation and execution of the blasting, which enables the blasting according to the invention to be focused essentially on the ground 21 and a throwing out of rock from the ground 21 in the vertical direction in particular from the immediate vicinity of the borehole 2 according to the invention is prevented by the protective plate 4 in conjunction with the closed recess 5 or at least limited to a large extent. As a result, a very low-risk blasting with a very efficient blasting effect in the ground 21 is given.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

L'invention concerne un système d'abattage à l'explosif avec lequel de la matière explosive est allumée dans un trou de forage. L'invention concerne également un procédé d'abattage à l'explosif et un arrangement d'abattage à l'explosif (1) à cet effet. L'arrangement d'abattage à l'explosif (1) selon l'invention destiné à mettre à feu un détonateur (10) introduit dans un trou de forage (2) est pourvu d'un élément porteur (3) qui possède au moins une plaque de protection (4) ayant une cavité (5). L'élément porteur (3) comporte un module de forage (6) qui est adapté et conçu pour pratiquer un trou de forage (2) dans le sous-sol (21), un module de mise à feu d'explosif (7) qui est adapté et conçu pour introduire un détonateur (10) dans un trou de forage (2) avec un porte-à-faux (14) au-dessus du sous-sol (21), et un module d'allumage (8) qui est adapté et conçu pour allumer un détonateur (10) pénétrant dans la cavité (5) de la plaque de protection (4). Le porte-à-faux (14) vertical du détonateur (10) fait saillie dans la cavité (5) de la plaque de protection (4) et ferme ainsi le passage sans obstruction à travers la cavité (5). Cette fermeture au moins partielle de la cavité (5) permet de garantir que lors d'une explosion, les particules du sous-sol (21) ne peuvent pas passer à travers la cavité (5), ou seulement dans une mesure très réduite, et ne peuvent pas provoquer de lésions aux personnes ou endommager les biens dans l'environnement de l'explosion. Une bonne manipulation et un niveau de sécurité extrêmement élevé sont ainsi garanties pendant l'explosion.
EP17832035.4A 2016-12-22 2017-12-22 Système d'abattage à l'explosif Active EP3559590B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016125497.5A DE102016125497B4 (de) 2016-12-22 2016-12-22 Sprengsystem
PCT/DE2017/101103 WO2018113851A1 (fr) 2016-12-22 2017-12-22 Système d'abattage à l'explosif

Publications (2)

Publication Number Publication Date
EP3559590A1 true EP3559590A1 (fr) 2019-10-30
EP3559590B1 EP3559590B1 (fr) 2023-03-22

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EP (1) EP3559590B1 (fr)
DE (1) DE102016125497B4 (fr)
WO (1) WO2018113851A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108775838A (zh) * 2018-08-16 2018-11-09 贵州大学 一种方便移动的工程爆破用全面防护装置
CN110284866B (zh) * 2019-07-23 2024-02-09 中国矿业大学(北京) 一种页岩压裂装置及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7174274A (en) * 1974-07-29 1976-01-29 Nitro Nobel Ab Blastings in rock formation 014
US4165690A (en) * 1976-12-17 1979-08-28 Rock Fall Company Limited Drill units for drilling and charge laying operations and method of carrying out the operations
DE7702287U1 (de) 1977-01-27 1979-01-11 Sobbe, Friedrich-Wilhelm, Dipl.-Kfm., 4600 Dortmund Sprengkapsel mit zuendschnur
ZW20981A1 (en) * 1980-09-11 1982-04-21 Aeci Ltd Method of blasting and blasting installation
DE3207121C2 (de) 1982-02-19 1986-08-07 Wilhelm 4330 Mülheim Leppak Ladesystem und Verfahren zum Einbringen einer Sprengladung in ein Bohrloch
DE3328550A1 (de) * 1982-11-13 1984-05-17 Fried. Krupp Gmbh, 4300 Essen Verfahren zum brechen von hartem kompaktem material und vorrichtung zur durchfuehrung des verfahrens
DE4136096C1 (en) 1991-11-02 1992-12-17 Edwin Deutgen Kunststofftechnik Gmbh, 3102 Hermannsburg, De Device for placing explosive charge on bottom of vertical borehole, etc. - includes casing with bottom end connected to blasting cartridge with outer dia. smaller than bore of drill pipe, etc.
DE10124936A1 (de) 2000-05-23 2001-11-29 Halliburton Energy Serv Inc Bohrloch-Sprengwerkzeug und Verfahren

Also Published As

Publication number Publication date
WO2018113851A1 (fr) 2018-06-28
EP3559590B1 (fr) 2023-03-22
DE102016125497A1 (de) 2018-06-28
DE102016125497B4 (de) 2021-03-18

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