EP1840322B1 - Drehschlagbohrvorrichtung und Verfahren - Google Patents

Drehschlagbohrvorrichtung und Verfahren Download PDF

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Publication number
EP1840322B1
EP1840322B1 EP06356035A EP06356035A EP1840322B1 EP 1840322 B1 EP1840322 B1 EP 1840322B1 EP 06356035 A EP06356035 A EP 06356035A EP 06356035 A EP06356035 A EP 06356035A EP 1840322 B1 EP1840322 B1 EP 1840322B1
Authority
EP
European Patent Office
Prior art keywords
flexible tubing
perforating body
drilling device
water pump
carrying vehicle
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.)
Not-in-force
Application number
EP06356035A
Other languages
English (en)
French (fr)
Other versions
EP1840322A1 (de
Inventor
Frédéric Brongniart
Franck Leon
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.)
Sandvik Mining and Construction Oy
Sandvik Mining and Construction Lyon SAS
Original Assignee
Sandvik Mining and Construction Oy
Sandvik Mining and Construction Lyon SAS
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 Sandvik Mining and Construction Oy, Sandvik Mining and Construction Lyon SAS filed Critical Sandvik Mining and Construction Oy
Priority to PL06356035T priority Critical patent/PL1840322T3/pl
Priority to DE602006003187T priority patent/DE602006003187D1/de
Priority to AT06356035T priority patent/ATE411446T1/de
Priority to EP06356035A priority patent/EP1840322B1/de
Publication of EP1840322A1 publication Critical patent/EP1840322A1/de
Application granted granted Critical
Publication of EP1840322B1 publication Critical patent/EP1840322B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • B25D9/125—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure driven directly by liquid pressure working with pulses
    • 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
    • E21B1/00—Percussion drilling
    • E21B1/12—Percussion drilling with a reciprocating impulse member
    • E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
    • E21B1/30—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure
    • E21B1/32—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure working with pulses
    • 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
    • E21B1/00—Percussion drilling
    • E21B1/38—Hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/20—Drives for drilling, used in the borehole combined with surface drive
    • 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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
    • 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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
    • E21B6/08—Separate drives for percussion and rotation

Definitions

  • the present invention relates to the field of drilling during underground work, particularly in mining. It relates in particular to a rotopercussion drilling device, adapted for use in low-rise mine galleries, in particular for drilling holes in the "roof" of such galleries. The invention also relates to a rotopercussion drilling method, implemented by this device.
  • a conventional drilling device used for this purpose, comprises a drill with a drill bar, the drill being moved vertically along a slide and exerting a roto-percussion action.
  • This device is not well suited for use in low-rise mine galleries, because the maximum hole depth is limited by the gallery height and the length of the drill. For example, in a 1.10-meter high mine gallery, and with a 300-mm-long drill, the maximum hole depth is about 700 mm, given the games needed to handle the tools - here about 100 mm to maneuver the drill bar.
  • a known solution is to mount a drill string drill on the drill, but this solution is heavy and constraining because it requires to gather successive rods successively to each other, and disconnect and reconnect the drill to the drill string, as the drilling hole deepens.
  • the patent US 4254638 A shows a rotary drilling device carried by a vehicle of low height and thus able to work in a mine gallery of low height.
  • the drilling is performed by purely mechanical means, comprising a shaft formed of short successive sections articulated between them and rotating inside a bent casing.
  • This drilling device is not rotopercutant type, and it does not use hydraulic energy.
  • WO 95/04207 A discloses a rotopercutant drilling device of the type "downhole hammer", which can be fed by a source of fluid under pressure creating pressure pulses.
  • the hammer comprises a piston mounted to move along the axis of this hammer, this piston directly carrying a cutter.
  • the guide of the piston is such that its advance is accompanied by a rotation of said piston, so the cutting.
  • the hammer thus creates its own rotational movement.
  • the document GB 2126940 A discloses a percussion mechanism remotely actuated by a gaseous fluid displacement device, creating pulses transmitted to a piston mounted axially slidably in a drill body, and striking a drill tool placed in front of the drill body.
  • this tool is not rotopercutant, the drill does not create a rotational movement and the connecting conduit that feeds this drill does not transmit any rotational movement.
  • the present invention aims to overcome these drawbacks by providing a rotopercutant drilling device for drilling deep holes and small diameter, while remaining suitable for use in low pit galleries.
  • the subject of the invention is a rotopercussion drill device adapted for use in low-height mine galleries, the device comprising a low-height carrier vehicle, a high-pressure water pump placed on the carrier vehicle, a generally cylindrical perforator body with a main axis, a flexible casing connecting the piercer body to the remote water pump, and a solenoid valve interposed on the vehicle carrier, between the water pump and the starting point of the flexible casing, a striking piston being mounted movable in translation and resiliently biased into the perforator body, and being subjected to a high pulsating pressure of water so as to be animated a percussion movement against an anvil cutting-holder, the solenoid valve receiving in operation successive electric pulses for opening and closing control, which create shock waves on the water line contained in the flexible casing, which transmits these shock waves to the striking piston of the piercer body, the flexible casing simultaneously transmitting to the piercer body a movement of t rotation around its main axis.
  • the idea underlying the invention is to deport, outside the hole to be drilled, on a carrier vehicle of low height, pulsed distribution means of water under high pressure, acting on the piston of striking, which reduces the length and diameter of the drill body and thus drill deep holes and small diameter, without being limited by the height of the mine gallery.
  • a hydraulic accumulator is associated, on the carrier vehicle, with the water pump, in order to clip the pressure peaks generated by the pump.
  • means for moving forward and guiding the flexible casing are provided on the carrier vehicle to transmit to the drill body a thrust movement, the drilled hole depth being substantially equivalent to the driving stroke of the flexible casing .
  • the means of displacement in front of the flexible casing comprise, for example, a platform mounted in horizontal translation on a chassis of the carrier vehicle, in the direction of the length of this frame, platform on which the water pump is mounted, the solenoid valve and an electric pulse generator coupled to the solenoid valve, the platform being movable in translation in the direction of the length of the frame, by motorized control means.
  • the maximum depth of the drilled hole is here advantageously limited only by the length of the flexible casing, and by the advance stroke of the platform.
  • the means for moving forward of the flexible casing comprises a unwinder, mounted on the carrier vehicle, on which is wound the flexible casing, a rotary joint connecting the starting point of this flexible casing to the water pump.
  • the means for guiding the flexible tubing in translation may comprise a slideway or a deflection and guide channel in the vertical direction, in particular in the shape of a bend, arranged at the front of the carrier vehicle.
  • means for rotating the flexible casing are provided on the carrier vehicle to transmit to the drill body a reciprocating movement about its main axis.
  • the device may further comprise means for supporting and guiding the piercing body at the initiation of a hole to be drilled so as to ensure the correct positioning and vertical guidance of the piercer body.
  • the piercer body may have openings, in particular grooves, through which water and broken rock debris are removed during drilling, the water being used here advantageously to evacuate the debris from rocks released by drilling. .
  • the invention also relates to a rotopercussion drilling method, adapted for use in low-height mine galleries, with the use of a perforator body connected by flexible tubing to a high-pressure water pump. , a striking piston being movably mounted in translation in the body of the perforator, and subjected to a high pulsating pressure of water, shock waves being generated in the water at a distance from the perforator, more particularly outside the current hole of drilling, and being transmitted to the punching piston of the piercer body by the water line contained in the flexible casing, the water released at the piercer body being used to evacuate the debris of rocks released during the boring.
  • a carrier vehicle 1 ensures the displacement of the drilling device according to the invention in a mine gallery G of low height H between 1.0 and 1.5 meters, for example 1.1 meters.
  • the carrier vehicle 1 comprises a rigid monobloc frame 2, of parallelepipedal general shape, located at a relatively low height above the ground on which the carrier vehicle 1 moves by four driving wheels, two rear wheels 3 and two front wheels 4
  • On the upper face of the frame 2 is mounted a mobile platform 5, displaceable in the direction of the length of the frame 2 on a stroke C, by motorized control means, not shown, for example a motor carried by the frame 2 and an endless chain transmission.
  • a perforator body 8 of generally cylindrical shape with a main axis A, and length L, is placed in use at the level of hole to drill, and connected by a flexible casing 7 to a water pump 11 under high pressure, about 150 bars, mounted on the mobile platform 5 and connected to the rear of the vehicle 1, a water supply 6.
  • the water pump 11 may comprise an integrated pressure limiter.
  • a striking piston 15 is movably mounted, resiliently biased by a return spring 16, into the piercer body 8 (see FIG. figure 3 ), and subjected to a high pulsating pressure of water so as to be driven in a percussion movement against an anvil cutting holder 17, by the means detailed below.
  • the perforator body 8 comprises, at the rear, a coupling 19 for its connection to the flexible casing 7.
  • a solenoid valve 13 is interposed, on the mobile platform 5, between the water pump 11 and the starting point of the flexible casing 7.
  • the solenoid valve 13 is coupled to an electric pulse generator 12 whose frequency may be between and 70 Hz.
  • a hydraulic accumulator 14, also mounted on the mobile platform 5, allows clipping of the pressure peaks related to the water pump 11.
  • Rotating drive means of the flexible casing 7, in particular rollers 10, are provided on the mobile platform 5.
  • a guide rail 9, in the form of a bend, is arranged at the front of the carrier vehicle 1 in order to deflect and guide in translation, in vertical direction, the flexible casing 7.
  • the drilling is ensured by the different movements, described below, percussion, thrust and rotation.
  • the solenoid valve 13 receives, from the pulse generator 12, successive electrical pulses 1 to alternately control its opening and closing, which create shock waves on the water line contained in the flexible casing 7.
  • the flexible casing 7 transmits these shock waves to the striking piston 15 mounted in the piercer body 8.
  • the striking piston 15 is driven in a percussion movement against the cutting anvil 17 of the piercer body 8.
  • the rollers 10 drive the flexible tubing 7 in rotation so that it simultaneously transmits to the cutting bit anvil 17 an alternating rotational movement R about the main axis A of the perforator body 8.
  • This movement of rotation is advantageous compared to a unidirectional rotation movement, because it allows to break the rock without having to rotate the large assembly of the elements mounted on the carrier vehicle 1.
  • the mobile platform 5 is moved in translation longitudinally on the frame 2, as and when the drilling, an initial position, which corresponds to a beginning of drilling (see figure 1 ) at an end position in which the desired depth P of the drilled hole T is reached (see figure 2 ).
  • the depth P of the drilled hole T is equivalent to the driving stroke of the flexible casing 7, which is advantageously limited only by the total length of the flexible casing 7, increased by the length L of the piercer body 8, and by the translation travel C of the mobile platform 5.
  • the platform 5 progressively advances the flexible casing 7 in the deflection guide and vertical guide 9.
  • the flexible casing 7 transmits this thrust movement to the body of the perforator 8, which allows it to drill more deep in the rock, until reaching the maximum depth P of hole, here for example 1.50 meters. It is of course possible to reach lower depths, by reducing the stroke C of the platform 5.
  • an organ 18 for supporting and guiding the body. of perforator 8 (see figure 1 ), so as to properly position the body of perforator 8 and ensure its initial rectilinear guidance, before it guides itself in the hole portion already drilled.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Drilling Tools (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Claims (9)

  1. Drehschlagbohrvorrichtung, die für eine Verwendung in Minenstollen geringer Höhe geeignet ist, wobei die Vorrichtung ein Trägerfahrzeug (1) geringer Höhe, eine Hochdruckwasserpumpe (11), die auf dem Trägerfahrzeug (1) angeordnet ist, ei nen Bohrmaschinenkörper (8) von allgemein zylindrischer Form mit einer Hauptachse (A), einen elastischen Rohrstrang (7), der den Bohrmaschinenkörper (8) mit der in Abstand angeordneten Wasserpumpe (11) verbindet, und ein Elektroventil (13) aufweist, das au f dem Trägerfahrzeug (1) zwischen der Wasserpumpe (11) und dem Ausgangspunkt des elastischen Rohrstrangs (7) einge fügt ist, wobei ein Schlagkolben (15) translationsbeweglich montiert und elastisch (16) in den Bohrmaschinenkörper (8) zurückgeholt wird, und einem gepulsten Wasserhochdruck ausgesetzt wird, damit ihm eine Schlagbewegung gegen einen Schneidenhalter-Amboss (17) verliehen wird, wobei das Elektroventil (13) im Betrieb aufeinanderfolgende elektrische Impulse ( I) für die Öffnungs - und Schließsteuerun g empfängt, die Stoßwellen auf die in dem elastischen Rohrstrang (7) enthaltene Wasserlinie erzeugen , der diese Stoßwellen bis zum Schlagkolben (15) des Bohrmaschinenkörpers (8) überträgt, wobei de r elastische Rohrstrang (7) gleichzeitig an den Bohrmaschinenkörper (8) eine Drehbewegung um seine Hauptachse (A) überträgt.
  2. Bohrvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass ein Hydrospeicher (14) auf dem Trägerfahrzeug (1) der Wasserpumpe (11) zugeordnet ist.
  3. Bohrvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass Mittel zur Verschiebung nach vorne (5) und zur translatorischen Führung (9) des elastischen Rohrstrangs (7) auf dem Trägerfahrzeug (1) vorgesehen sind, um auf den Bohrmaschinenkörper (8) eine Schubbewegung zu übertragen, wobei die Tiefe (P) des Bohrlochs im Wesentlichen gleich dem Antriebshub (C) de s elastischen Rohrstrangs (7) ist.
  4. Bohrvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Mittel zur Verschiebung des elastischen Rohrstrangs (7) nach vorne e ine Plattform (5) aufweisen, die in waagrechter Translationsverschiebung beweglich auf ein Fahrgestell (2) d es Trägerfahrzeugs (1) in Längsrichtung dieses Fahrgestells (2) montiert ist, wobei die Wasserpumpe (11) und ein mit dem Elektroventil (13) gekoppel ter elektrischer Impulsgenerator (12) auf die Plattform montiert sind, wobei die Plattform (5) durch motorisierte Steuermittel in Richtung der Länge des Fahrgestells (2) translatorisch verschiebbar ist.
  5. Bohrvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Mittel zur Verschiebung des elastischen Rohrstrangs (7) nach vorne einen auf das Trägerfahrzeug (1) montiert en Abwickler aufweisen, auf den de r elastische Rohrstrang (7) aufgewickelt ist, wobei eine Dreh kopplung den Ausgangspunkt dieses elastischen Rohrstrangs (7) mit der Wasserpumpe (11) verbindet.
  6. Bohrvorrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass die Mittel zur translatorischen Führung des elastischen Rohrstrangs (7) eine Gleitschiene oder einen Umleitungs- und Führungskanal (9) in senkrechter Richtung, insbesondere in Form eines Kniestücks, aufweisen, der (die) vor dem Trägerfahrzeug (1) angeordnet ist.
  7. Bohrvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass Drehantriebsmittel (10) d es elastischen Rohrstrangs (7) auf dem Trägerfahrzeug (1) vorgesehen sind, um auf den Bohrmaschinenkörper (8) eine abwechselnde Drehbewegung (R) um seine Hauptachse (A) zu übertragen.
  8. Bohrvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass sie Mittel (18) zum Stützen und Führen des Bohrmaschinenkörpers (8) beim Anbohren eines zu bohrenden Lochs aufweisen.
  9. Drehschlagbohrverfahren, das für eine Verwendung in Minenstollen (G) geringer Höhe geeignet ist, mit Verwendung eines Bohrmaschinenkörpers (8), der über eine n elastischen Rohrstrang (7), de r fähig ist, auf den Bohrmaschinenkörper (8) eine Drehbewegung um seine Hauptachse (A) zu übertragen, mit einer Hochdruck wasserpumpe (11) verbunden ist, wobei ein Schlagkolben (15) translationsbeweglich in den Bohrmaschinenkörper (8) montiert und einem gepulsten Wasser hochdruck ausgesetzt ist, wobei Stoßwellen im Wasser in Abstand zu r Bohrmaschine (8), insbesondere außerhalb des Lochs (T), das gerade gebohrt wird, erzeugt und durch die im elastischen Rohrstrang (7) enthalten e Wasserlinie bis zum Schlagkolben (15) des Bohrmaschinenkörpers (8) übertragen werden, wobei das in Höhe des Bohrmaschinenkörpers (8) freigesetzte Wasser verwendet wird, um die Steinbrocken zu entfernen, die durch den Bohrvorgang gelöst werden.
EP06356035A 2006-03-30 2006-03-30 Drehschlagbohrvorrichtung und Verfahren Not-in-force EP1840322B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL06356035T PL1840322T3 (pl) 2006-03-30 2006-03-30 Obrotowo-udarowe urządzenie wiertnicze i sposób wiercenia
DE602006003187T DE602006003187D1 (de) 2006-03-30 2006-03-30 Drehschlagbohrvorrichtung und Verfahren
AT06356035T ATE411446T1 (de) 2006-03-30 2006-03-30 Drehschlagbohrvorrichtung und verfahren
EP06356035A EP1840322B1 (de) 2006-03-30 2006-03-30 Drehschlagbohrvorrichtung und Verfahren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06356035A EP1840322B1 (de) 2006-03-30 2006-03-30 Drehschlagbohrvorrichtung und Verfahren

Publications (2)

Publication Number Publication Date
EP1840322A1 EP1840322A1 (de) 2007-10-03
EP1840322B1 true EP1840322B1 (de) 2008-10-15

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ID=36933625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06356035A Not-in-force EP1840322B1 (de) 2006-03-30 2006-03-30 Drehschlagbohrvorrichtung und Verfahren

Country Status (4)

Country Link
EP (1) EP1840322B1 (de)
AT (1) ATE411446T1 (de)
DE (1) DE602006003187D1 (de)
PL (1) PL1840322T3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108593454B (zh) * 2018-07-13 2024-01-09 湖南科技大学 一种冲击扰动下充填承压溶洞突泥试验装置及试验方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB952403A (en) * 1962-01-23 1964-03-18 Sonomotive Engineers Ltd Improvements in or relating to fluctuating pressure sonic power systems
US3460636A (en) * 1967-07-05 1969-08-12 Sonomotive Eng Ltd Percussive tools and machines
US4254638A (en) * 1978-10-04 1981-03-10 The Bendix Corporation Positive release means for articulated flexible shaft
GB2126940B (en) * 1982-09-04 1986-02-26 Inst Gornogo Dela Sibirskogo O Percussive tool
US5467684A (en) * 1992-03-25 1995-11-21 Sher; Arieh Rotary piston driving mechanism

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Publication number Publication date
PL1840322T3 (pl) 2009-02-27
ATE411446T1 (de) 2008-10-15
DE602006003187D1 (de) 2008-11-27
EP1840322A1 (de) 2007-10-03

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