EP4200508A1 - Appareil et procédé de déblayage d'une ouverture de puits de forage - Google Patents

Appareil et procédé de déblayage d'une ouverture de puits de forage

Info

Publication number
EP4200508A1
EP4200508A1 EP21759429.0A EP21759429A EP4200508A1 EP 4200508 A1 EP4200508 A1 EP 4200508A1 EP 21759429 A EP21759429 A EP 21759429A EP 4200508 A1 EP4200508 A1 EP 4200508A1
Authority
EP
European Patent Office
Prior art keywords
boom
borehole
sweeper assembly
brush
entrance
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.)
Pending
Application number
EP21759429.0A
Other languages
German (de)
English (en)
Inventor
Johan Engblom
Martin Ekefalk
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.)
Epiroc Rock Drills AB
Original Assignee
Epiroc Rock Drills AB
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 Epiroc Rock Drills AB filed Critical Epiroc Rock Drills AB
Publication of EP4200508A1 publication Critical patent/EP4200508A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • E21B12/00—Accessories for drilling tools
    • E21B12/06—Mechanical cleaning devices
    • 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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/02—Scrapers specially adapted therefor
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
    • B08B1/165—Scrapers

Definitions

  • the present disclosure relates to a sweeper assembly arranged at a distal end of a boom of a mining or construction work machine.
  • the sweeper assembly may be used for preparing boreholes for a blasting operation.
  • the present disclosure further relates to a method of using the sweeper assembly for removing blockages from a borehole opening.
  • Mining operations and construction work commonly utilize drilling and blasting techniques. Usually, a plurality of boreholes need to be drilled into a rock surface. The boreholes extend a proper depth into the rock and are filled with explosive charges when drilling of all the holes is complete.
  • drill cuttings need to be removed from the drilled holes with the aid of a flushing medium such as compressed air or liquid.
  • the liquid flush medium such as water may mix with the drill cuttings to form a clay paste.
  • the drill cuttings from a hole currently being drilled can block entrance to the already drilled holes nearby.
  • the particularly affected are the lifter holes which are drilled along the floor of a tunnel for lifting the rock to floor level. The lifter holes may become buried and covered up completely by the drill cuttings and/or the clay paste thereof.
  • CN210396627U discloses a method of using a brush to remove drill cuttings from a borehole opening during drilling, wherein a rotary actuator is shared by the drill unit and the brush.
  • a rotary actuator is shared by the drill unit and the brush.
  • the drill cuttings from a borehole currently being drilled can block entrance to the already drilled boreholes nearby.
  • the method of CN210396627U is not appropriate or efficient for clearing the blocked openings of already drilled boreholes.
  • one object of the present disclosure is therefore to reduce manual workload and risks for personnel at the site during operations for clearing a borehole opening of blockages at entrance to the borehole.
  • Another object of the disclosure is to increase work efficiency and productivity.
  • Yet another object of the disclosure is to provide a novel and advantageous solution for clearing a borehole opening of blockages at entrance to the borehole.
  • Yet another object of the disclosure is to provide a robust and reliable solution for clearing a borehole opening of blockages at entrance to the borehole.
  • Yet another object of the disclosure is to provide an alternative solution for clearing a borehole opening of blockages at entrance to the borehole.
  • Yet another object of the disclosure is to improve mechanization and automation of clearing a borehole opening of blockages at entrance to the borehole.
  • a boom of a mining or construction work machine which boom comprising a first end connectable to the mining or construction work machine, a distal second end, and at least one sweeper assembly arranged at the distal second end of the boom.
  • the sweeper assembly is configured to clear a borehole opening of blockages at entrance to the borehole.
  • the boom as was described above enables mechanization and automation of the process of clearing a borehole opening of blockages at entrance to the borehole.
  • the sweeper assembly as was described above comprises at least one rotary actuator and/or at least one linear actuator.
  • the at least one rotary actuator is used to transform energy to mechanical rotation of the sweeper assembly.
  • the at least one linear actuator is used to move the sweeper assembly in a straight line.
  • the sweeper assembly as was described above further comprises at least one brush configured to rotate about an axis A.
  • the rotating brush has the advantage of producing a continuous cleaning of a large area thereby increasing work efficiency and productivity.
  • the brush as was described above may comprise a rotatable shaft or drum.
  • the rotary actuator as was described above controls mechanical rotation of the at least one brush via the shaft or drum.
  • the brush as was described above may further comprises a plurality of single- and/or multi-strand steel wire packs.
  • the steel wire packs are wear-resistant such that the sweeper assembly can perform in an aggressive manner.
  • the sweeper assembly as was described above may comprises at least one scraping tool.
  • the scraping tool has the advantage of providing a more focused cleaning which is particularly efficient for removing tough clay paste of drill cuttings from a borehole opening.
  • the sweeper assembly with at least one scraping tool may comprise at least one hydraulic cylinder configured to control operation of the at least one scraping tool.
  • the hydraulic cylinder inherently produces linear motion of the at least one scraping tool.
  • a rig comprising at least one boom as was described above.
  • the rig has all the advantages that have been described above in conjunction with the boom and the sweeper assembly.
  • a method of clearing a borehole opening of blockages at entrance to the borehole comprising the steps of positioning the sweeper assembly as was described at entrance to the borehole; and controlling operation of the at least one brush and/or the at least one scraping tool of the sweeper assembly as was described above to remove blockages from the borehole opening.
  • the method has all the advantages that have been described above in conjunction with the boom and the sweeper assembly.
  • Figure 1 is a schematic representation of a mining or construction work machine
  • Figure 2 depicts a sweeper assembly with a brush in a perspective view
  • Figure 3 is a schematic representation of a brush with a rotatable drum
  • Figure 4 is a schematic representation of a sweeper assembly with a scraping tool.
  • Figure 5 is a schematic representation of a sweeper assembly with a telescopically extendable connecting means.
  • the present disclosure aims to reduce or even eliminate exposure of personnel to the hazardous work environment during operations for clearing a borehole opening of blockages at entrance to the borehole.
  • the present disclosure further aims to reduce manual workload and increase work efficiency or productivity.
  • the present disclosure improves mechanization and automation of the operations for clearing a borehole opening of blockages at entrance to the borehole by providing a novel, robust and reliable solution which is advantageous over the state of the art.
  • a boom 4 of a mining or construction work machine 1 which boom 4 comprising a first end 4a connectable to the mining or construction work machine 1 , a distal second end 4b, and a sweeper assembly 6 arranged at the distal second end 4b of the boom 4.
  • the sweeper assembly 6 is configured to clear a borehole opening of blockages at entrance to the borehole.
  • the boom 4 comprising the sweeper assembly 6 enables mechanization and automation of the process of clearing a borehole opening of blockages at entrance to the borehole. Furthermore, the sweeper assembly 6 is easy to operate.
  • the mining or construction work machine 1 may be a charging rig for loading boreholes with explosive charges.
  • the charging rig 1 may comprise a mounting device 3 attached to the distal second end 4b of the at least one boom 4 (Fig. 1), which mounting device 3 comprises a beam 5, wherein the sweeper assembly 6 is arranged on the beam 5 (Fig. 2).
  • Other devices or tools e.g. a loading assembly as was described in our patent application SE 2030174-3, a hose for flushing medium, an explosive delivery hose, a hose handling unit, etc. may also be arranged on the same beam 5 of the charging rig 1 as the sweeper assembly 6.
  • the sweeper assembly 6 may comprise at least one rotary actuator and/or at least one linear actuator.
  • the at least one rotary actuator is used to transform energy to mechanical rotation of the sweeper assembly 6.
  • the at least one rotary actuator may be hydraulically, pneumatically or electrically powered.
  • the at least one linear actuator is used to move the sweeper assembly 6 in a straight line.
  • the at least one linear actuator may be hydraulically, pneumatically or electrically powered.
  • the at least one linear actuator may be a hydraulic or pneumatic cylinder that inherently produces linear motion.
  • the sweeper assembly 6 may further comprise at least one brush 7 configured to rotate about an axis A (Figs. 2 and 3).
  • the rotating brush 7 has the advantage of producing a continuous cleaning of a large area thereby increasing work efficiency and productivity.
  • the sweeper assembly 6 may further comprise a connection means 20, which connection means 20 connects the brush 7 to the distal second end 4b of the boom 4.
  • the connection means 20 may comprise an extendable first part with at least two telescopic sections 51 , 52 (Fig. 5), wherein the first part is connectable to the distal second end 4b of the boom 4; and a second part connectable to the brush 7.
  • a mining or construction work machine 1 may typically comprise a mounting device 3 attached to the distal second end 4b of the at least one boom 4 (Fig. 1), which mounting device 3 comprises a beam 5, wherein the connection means 20 of the sweeper assembly 6 connects the brush 7 to the beam 5 at the distal second end 4b of the boom 4 (Fig. 2).
  • connection means 20 comprising an extendable first part with at least two telescopic sections 51 , 52 provides the advantage of space-saving storage of the brush 7 when the sweeper assembly 6 is not in use and the advantage of flexibility in getting access to the area to be swept.
  • Operation of the extendable first part of the connection means 20 may be controlled by a linear actuator.
  • the brush 7 as illustrated in Fig. 2 may comprise a rotatable shaft. The rotary actuator as was described above controls mechanical rotation of the at least one brush 7 via the shaft.
  • the brush 7 as illustrated in Fig. 2 may comprise a single-piece mounting flange 21 , wherein a plurality of single- and/or multi-strand wire packs 8 are mechanically affixed to the single-piece mounting flange 21 .
  • the wire packs 8 are made of wearresistant material such as steel wires, which enables more aggressive performance of the sweeper assembly 6.
  • the brush 7 as illustrated in Fig. 3 may comprise a rotatable drum 9 (Fig. 3a).
  • Fig. 3b is a cross-sectional view of the brush 7 with a rotatable drum 9.
  • a cutting plane 30 indicated in Fig. 3a defines the cross-section shown in Fig. 3b.
  • the rotary actuator as was described above controls mechanical rotation of the at least one brush 7 via the drum 9.
  • the brush 7 as illustrated in Fig. 3 may comprise a plurality of single- and/or multistrand wire packs 8 mechanically affixed to the drum 9.
  • the wire packs 8 are made of wear-resistant material such as stainless steel, which enables aggressive performance of the sweeper assembly 6.
  • the sweeper assembly 6 may comprise at least one scraping tool 10.
  • the scraping tool 10 has the advantage of providing a more focused cleaning which is particularly efficient for removing tough clay paste of drill cuttings from a borehole opening.
  • the sweeper assembly 6 may comprise at least one hydraulic cylinder 11 configured to control operation of the at least one scraping tool 10.
  • the hydraulic cylinder 11 inherently produces linear motion of the at least one scraping tool 10.
  • the sweeper assembly 6 may comprise a connection means 20, which connection means 20 comprising a shank 40 connected to the at least one scraping tool 10, a pivot member 42 connecting the shank 40 to the distal second end 4b of the boom 4, and a feeding device 41 arranged at the distal second end 4b of the boom 4, wherein the feeding device 41 is connected to the shank 40.
  • the pivot member 42 enables rotary motion of the shank 40 around the pivot member 42 (Fig. 4).
  • a mining or construction work machine 1 comprises a mounting device 3 attached to the distal second end 4b of the at least one boom 4 (Fig. 1).
  • the mounting device 3 comprises a beam 5, wherein the shank 40 is connected to the beam 5 via the pivot member 42 at the distal second end 4b of the boom 4, and wherein the feeding device 41 is attached to the beam 5 at the distal second end 4b of the boom 4 (Fig. 4).
  • the feeding device 41 is configured to move along the longitudinal axis of the beam 5.
  • the feeding device 41 comprises an even number of rollers, which has the advantage of ensuring stable movement of the feeding device 41.
  • the sweeper assembly 6 as illustrated in Fig. 4 may further comprise a first hydraulic cylinder 11 configured to control operation of the scraping tool 10, a second hydraulic cylinder 11 configured to control operation of the shank 40, and a third hydraulic cylinder 11 configured to control operation of the feeding device 41.
  • the sweeper assembly 6 as was described above provides the advantage of spacesaving storage of the scraping tool 10 when the sweeper assembly 6 is not in use and the advantage of flexibility in get access to the area to be cleaned.
  • a rig 1 comprising at least one boom 4 as was described above.
  • the rig 1 may be a complex equipment intended for earth surface use or underground use.
  • the rig 1 may be a mining or construction work machine adapted for various mining operations or construction work.
  • the rig 1 may be a drilling rig adapted for drilling blasting holes, injection holes, holes for rock bolt reinforcement, etc..
  • the rig 1 may be a charging rig for loading boreholes with explosive charges.
  • Fig. 1 shows schematically a mining or construction work machine 1 comprising a carrier 2, at least one boom 4 and a mounting device 3 attached to the distal second end 4b of the at least one boom 4.
  • the mounting device 3 comprises a beam 5 on which the sweeper assembly 6 may be arranged (Figs. 2 and 4).
  • Other devices or tools e.g. a drilling machine, a loading assembly as was described in our patent application SE 2030174-3, a hose for flushing medium, an explosive delivery hose, a hose handling unit, etc. may also be arranged on the same beam 5 as the sweeper assembly 6.
  • An enlarged view of the beam 5 with the sweeper assembly 6 is provided in Figs. 2 and 4.
  • the rig 1 has all the advantages that have been described above in conjunction with the boom 4 and the sweeper assembly 6.
  • a method of clearing a borehole opening of blockages at entrance to the borehole comprising the steps of positioning the sweeper assembly 6 as was described above at entrance to the borehole; and controlling operation of the at least one brush 7 and/or the at least one scraping tool 10 of the sweeper assembly 6 to remove blockages from the borehole opening.
  • the method further comprises a step of rinsing the swept borehole opening with water, which removes any residual debris from the entrance to the borehole.
  • the method as was described above for clearing a borehole opening of blockages at entrance to the borehole is a straightforward method which may be at least partially automatized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

Flèche (4) d'une machine d'exploitation minière ou de construction (1), ladite flèche (4) comprenant une première extrémité (4a) pouvant être reliée à la machine d'exploitation minière ou de construction (1), une seconde extrémité distale (4b) et au moins un ensemble de balayage (6) agencé au niveau de la seconde extrémité distale (4b) de la flèche (4), l'ensemble de balayage (6) étant conçu pour déblayer une ouverture de puits de forage des obstructions à l'entrée du puits de forage, et l'ensemble de balayage (6) comprenant au moins un actionneur linéaire. Procédé de déblayage d'une ouverture de puits de forage des obstructions à l'entrée du puits de forage, lequel procédé consiste à positionner l'ensemble de balayage (6) à l'entrée du puits de forage ; et à commander le fonctionnement de l'ensemble de balayage (6) pour éliminer les obstructions de l'ouverture de puits de forage.
EP21759429.0A 2020-08-18 2021-08-17 Appareil et procédé de déblayage d'une ouverture de puits de forage Pending EP4200508A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE2050959A SE544331C2 (en) 2020-08-18 2020-08-18 Apparatus and method for clearing a borehole opening
PCT/SE2021/050801 WO2022039653A1 (fr) 2020-08-18 2021-08-17 Appareil et procédé de déblayage d'une ouverture de puits de forage

Publications (1)

Publication Number Publication Date
EP4200508A1 true EP4200508A1 (fr) 2023-06-28

Family

ID=77499891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21759429.0A Pending EP4200508A1 (fr) 2020-08-18 2021-08-17 Appareil et procédé de déblayage d'une ouverture de puits de forage

Country Status (5)

Country Link
EP (1) EP4200508A1 (fr)
AU (1) AU2021327697A1 (fr)
CA (1) CA3188347A1 (fr)
SE (1) SE544331C2 (fr)
WO (1) WO2022039653A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1612186A (en) * 1926-12-28 Posthole digger
CA2145987A1 (fr) * 1992-10-02 1994-04-14 Martin Wanner Tete de brossage pour le nettoyage de surfaces
US6527345B2 (en) 2001-05-10 2003-03-04 Inco Limited Method for excavating a tunnel rock face by drilling a pattern of lifter and line holes
KR100893316B1 (ko) * 2008-12-11 2009-04-15 주식회사 고속도로관리공단 터널 조명등 세척기
SE536651C2 (sv) 2010-11-17 2014-04-29 Atlas Copco Rock Drills Ab Förfarande, system och bergborrningssystem för installationav rör vid bergborrning
CN109372534A (zh) * 2018-11-15 2019-02-22 江西蓝翔重工有限公司 一种运输槽体上带电缆卷筒的钻装机组
CN210396627U (zh) * 2019-09-02 2020-04-24 无锡中维建筑机械制造有限公司 一种用于滑移装载机的液压螺旋钻

Also Published As

Publication number Publication date
AU2021327697A1 (en) 2023-02-09
SE544331C2 (en) 2022-04-12
CA3188347A1 (fr) 2022-02-24
SE2050959A1 (en) 2022-02-19
WO2022039653A1 (fr) 2022-02-24

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