WO2015010463A1 - Anchoring and anti-blocking drill rod for coal mine floor - Google Patents

Anchoring and anti-blocking drill rod for coal mine floor Download PDF

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Publication number
WO2015010463A1
WO2015010463A1 PCT/CN2014/072184 CN2014072184W WO2015010463A1 WO 2015010463 A1 WO2015010463 A1 WO 2015010463A1 CN 2014072184 W CN2014072184 W CN 2014072184W WO 2015010463 A1 WO2015010463 A1 WO 2015010463A1
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WO
WIPO (PCT)
Prior art keywords
hollow
drill pipe
coal mine
drill rod
blocking
Prior art date
Application number
PCT/CN2014/072184
Other languages
French (fr)
Chinese (zh)
Inventor
马占国
龚鹏
张帆
赵国贞
贺纯纯
马云靖
Original Assignee
中国矿业大学
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 中国矿业大学 filed Critical 中国矿业大学
Priority to AU2014295717A priority Critical patent/AU2014295717B2/en
Priority to RU2016106945A priority patent/RU2662831C2/en
Publication of WO2015010463A1 publication Critical patent/WO2015010463A1/en
Priority to US15/006,035 priority patent/US20160138397A1/en
Priority to ZA2016/01348A priority patent/ZA201601348B/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0053—Anchoring-bolts in the form of lost drilling rods
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/18—Pipes provided with plural fluid passages
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/003—Machines for drilling anchor holes and setting anchor bolts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0033—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts having a jacket or outer tube
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0093—Accessories

Definitions

  • the invention relates to the technical field of a floor anchoring device, in particular to a coal mine floor anchor drill pipe for realizing anti-blocking and quick cleaning construction.
  • the object of the present invention is to provide a coal mine floor anchoring anti-blocking drill pipe with simple structure, low investment, integrated drilling, clearing and sewage discharging functions according to the problems existing in the prior art.
  • the coal mine floor anchoring anti-blocking drill pipe of the invention comprises a hollow drill pipe, wherein the hollow drill pipe is provided with a hollow sleeve, the front end of the hollow drill pipe is provided with a front end threaded joint, and the rear end is provided with a tail thread joint.
  • the hollow sleeve is wound with a spiral connecting line, and the spiral direction of the connecting line is opposite to the working direction of the drill pipe, and the connecting line forms a spiral gap with the inner hole of the hollow drill pipe; groove.
  • the outer surface of the hollow drill rod is provided with a wrench slot at the front threaded joint and the tail threaded joint; the wrench slot is prismatic or square.
  • the present invention can not only efficiently drill the coal mine floor, but also Drilling, cleaning, and draining can be performed simultaneously.
  • the clean water can be pressurized, and the coal (rock) powder at the end of the drill hole is washed and cleaned by the pressurized water, and the end sewage is extracted through the hollow casing for subsequent centralized treatment.
  • the device effectively ensures the anti-blocking effect of the anchor plate of the coal mine floor.
  • the utility model solves the problem that the traditional drilling method is easy to cause the hole blocking in the construction of the bottom plate, saves the extremely cumbersome working procedure such as drilling back and clearing the hole during the drilling process, and greatly improves the construction efficiency of the anchoring of the floor plate.
  • the utility model has the advantages of simple structure, strong adaptability, easy operation and wide practicality.
  • Figure 1 is a schematic structural view of the present invention
  • Figure 2 is a schematic view of the hollow sleeve structure.
  • the anchorage prevention drill pipe of the coal mine floor of the invention is mainly composed of a hollow drill pipe 1 and a hollow casing 2, and the hollow casing 2 is arranged in the hollow drill pipe 1, and the hollow drill pipe 1
  • the front end is provided with a front end threaded joint 5, and the rear end is provided with a tail threaded joint 6.
  • the outer surface of the hollow drill rod 1 is provided with a wrench card slot 3 at the front end threaded joint 5 and the tail threaded joint 6, and the wrench card slot 3 It is prismatic or square.
  • the hollow sleeve 2 is wound with a spiral connecting line 4, the spiral direction of the connecting line 4 is opposite to the working direction of the drill pipe, and the connecting line 4 forms a spiral gap with the inner hole of the hollow drill pipe 1; There is a water-proof slot 7 at the end of the 2nd.
  • the hole, the spiral connecting line 4 has a good pressurized water guiding effect and the effect of fixing the hollow sleeve 2;
  • the hollow sleeve 2 is a sewage passage, and during the drilling cleaning process, the sewage is passed through the suction device in the drilling machine The drill bit is sucked into the hollow casing 2 of the coal mine floor to anchor the anti-blocking drill pipe, thereby discharging the sewage.
  • the device solves the problem that the traditional drilling method is easy to cause hole blocking in the construction of the bottom plate, and saves the extremely cumbersome working procedure of drilling and clearing holes during the drilling process, and realizes the drilling, cleaning and sewage discharging processes at the same time.

Abstract

An anchoring and anti-blocking drill rod for a coal mine floor comprises a hollow drill rod (1), a hollow sleeve (2), threaded connectors disposed at ends of the hollow drill rod, a prismatic wrench clamping groove (3) disposed in the outer surface of the hollow drill rod and located between a front end threaded connector (5) and a tail end threaded connector (6), a spiral connecting line (4) disposed between the hollow sleeve and the hollow drill rod, and a water-proof insertion groove (7) disposed in a tail end of the hollow sleeve. The device can drill the coal mine floor, and can simultaneously perform drilling, cleaning and dirt discharging. The device has a simple structure and good adaptation, is easy to operate, provides a good anti-blocking effect, and has wide practicability.

Description

一种煤矿底板锚固防堵钻杆  Coal mine floor anchoring anti-blocking drill pipe
技术领域 Technical field
本发明涉及底板锚固设备技术领域，特别是一种实现防堵快速清洁施工的煤矿底板 锚固钻杆。  The invention relates to the technical field of a floor anchoring device, in particular to a coal mine floor anchor drill pipe for realizing anti-blocking and quick cleaning construction.
背景技术 Background technique
随着我国经济建设的快速发展， 能源需求极大， 煤炭资源作为我国能源供应的主要 来源在未来很长一段时间内很难改变， 致使煤炭工业不断朝着机械化、 自动化方向发展。 我国多数煤矿由于煤岩性质、 埋深、 地应力等原因， 巷道底鼓破坏严重， 影响了巷道使 用安全， 制约了矿井的安全生产， 因此底板加固治理任务艰巨。  With the rapid development of China's economic construction, energy demand is extremely great. As a major source of China's energy supply, coal resources are difficult to change in the future for a long time, which has led the coal industry to continue to develop towards mechanization and automation. Due to coal rock properties, buried depth and ground stress, most of the coal mines in China have serious damage to the tunnel bottom drum, which affects the safe use of the roadway and restricts the safe production of the mine. Therefore, the task of strengthening and strengthening the floor is arduous.
现阶段， 我国对于煤矿底板加固治理的最主要手段为锚杆支护。 目前， 国内专门针 对煤矿巷道底板的锚固设备研制很少。 而现在典型的锚固设备所使用的湿法钻孔方式是 将有固定的水源提供的高压水直接注入旋转的中空钻杆中， 将形成的泥水混合物通过钻 杆与煤 （岩） 层的间隙挤压出来。 该种湿法钻孔方式在煤矿底板进行作业时存在一些技 术问题： 首先， 挤压出来的泥水混合物随钻杆四处飞溅不能收集， 影响了巷道的正常运 输和工人行走， 同时底板围岩浸水软化加剧了底鼓问题； 其次， 传统的钻孔方式在底板 施工容易造成堵孔， 在钻进过程中退钻、 清孔工作极为繁琐， 严重影响了底板锚固的施 工效率； 第三， 钻孔中煤 （岩） 粉进入巷道， 加剧了巷道粉尘治理的难度， 危害工人身 体健康。  At this stage, the most important means for the reinforcement of coal mine floor in China is bolt support. At present, there are few domestic developments for anchoring equipment for coal mine roadway floor. The wet drilling method used in typical anchoring equipment is to directly inject the high-pressure water provided by a fixed water source into the rotating hollow drill pipe, and to form the mud-water mixture through the gap between the drill pipe and the coal (rock) layer. Press it out. There are some technical problems when the wet drilling method is used in the coal mine floor. Firstly, the squeezed muddy water mixture can not be collected with the drill pipe, which affects the normal transportation of the roadway and the workers walking. In addition, the traditional drilling method is easy to cause hole blocking in the construction of the bottom plate. It is extremely cumbersome to retreat and clear the hole during the drilling process, which seriously affects the construction efficiency of the anchoring of the floor. Third, the coal in the borehole (Rock) Powder enters the roadway, which complicates the difficulty of dust control in the roadway and endangers the health of workers.
因此， 研制一种实现安全简易安装、 快速清洁施工的底板锚固钻杆对于现阶段煤矿 生产具有重要的使用价值。  Therefore, the development of a bottom plate anchoring drill pipe that realizes safe and easy installation and quick and clean construction has important use value for coal mine production at this stage.
发明内容 Summary of the invention
本发明的目的是根据现有技术存在的问题， 提供一种结构简单、 投资少， 集钻孔、 清孔、 排污功能于一体的煤矿底板锚固防堵钻杆。  The object of the present invention is to provide a coal mine floor anchoring anti-blocking drill pipe with simple structure, low investment, integrated drilling, clearing and sewage discharging functions according to the problems existing in the prior art.
本发明的煤矿底板锚固防堵钻杆， 包括空心钻杆， 所述的空心钻杆内的设有空心套 管， 空心钻杆的前端设有前端螺纹接头， 后端设有尾部螺纹接头， 所述的空心套管上缠 绕有呈螺旋状的连接线， 连接线的螺旋方向与钻杆工作转动方向相反， 连接线与空心钻 杆内孔形成螺旋形缝隙； 空心套管尾部设有隔水插槽。  The coal mine floor anchoring anti-blocking drill pipe of the invention comprises a hollow drill pipe, wherein the hollow drill pipe is provided with a hollow sleeve, the front end of the hollow drill pipe is provided with a front end threaded joint, and the rear end is provided with a tail thread joint. The hollow sleeve is wound with a spiral connecting line, and the spiral direction of the connecting line is opposite to the working direction of the drill pipe, and the connecting line forms a spiral gap with the inner hole of the hollow drill pipe; groove.
所述的空心钻杆外表面位于前端螺纹接头和尾部螺纹接头处均设有扳手卡槽； 所述 的扳手卡槽为棱柱形或方形。  The outer surface of the hollow drill rod is provided with a wrench slot at the front threaded joint and the tail threaded joint; the wrench slot is prismatic or square.
有益效果： 由于采用上述技术方案， 本发明不仅可以对煤矿底板进行高效钻孔， 还 可以实现钻进、 清理、 排污同时进行。 钻杆工作时， 可对清水加压， 通过加压清水对钻 孔端头位置的煤 （岩） 粉进行冲刷清理， 并通过空心套管将端头污水抽出， 进行后续集 中处理。 该设备有效保证了煤矿底板锚固钻杆的防堵效果。 解决了传统的钻孔方式在底 板施工容易造成堵孔的问题， 节省了在钻进过程中退钻、 清孔等极为繁琐的工作程序， 极大提高了底板锚固的施工效率。 其结构简单， 适应性强， 容易操作， 具有广泛的实用 性。 Advantageous Effects: According to the above technical solution, the present invention can not only efficiently drill the coal mine floor, but also Drilling, cleaning, and draining can be performed simultaneously. When the drill pipe is working, the clean water can be pressurized, and the coal (rock) powder at the end of the drill hole is washed and cleaned by the pressurized water, and the end sewage is extracted through the hollow casing for subsequent centralized treatment. The device effectively ensures the anti-blocking effect of the anchor plate of the coal mine floor. The utility model solves the problem that the traditional drilling method is easy to cause the hole blocking in the construction of the bottom plate, saves the extremely cumbersome working procedure such as drilling back and clearing the hole during the drilling process, and greatly improves the construction efficiency of the anchoring of the floor plate. The utility model has the advantages of simple structure, strong adaptability, easy operation and wide practicality.
附图说明 DRAWINGS
图 1为本发明的结构示意图；  Figure 1 is a schematic structural view of the present invention;
图 2为空心套管结构示意图。  Figure 2 is a schematic view of the hollow sleeve structure.
图中： 1-空心钻杆； 2-空心套管； 3-扳手卡槽； 4-连接线； 5-前端螺纹接头； 6-尾部 螺纹接头； 7-隔水卡槽。  In the figure: 1- hollow drill pipe; 2-hollow casing; 3-wrench card slot; 4-connecting wire; 5- front threaded joint; 6-tail threaded joint; 7-water-blocking groove.
具体实施方式 detailed description
下面结合附图对本发明的一个实施例作进一步描述：  An embodiment of the present invention will be further described below with reference to the accompanying drawings:
图 1、 图 2所示， 本发明煤矿底板锚固防堵钻杆， 主要由空心钻杆 1、 空心套管 2构 成， 所述的空心套管 2设在空心钻杆 1内， 空心钻杆 1的前端设有前端螺纹接头 5， 后端 设有尾部螺纹接头 6， 所述的空心钻杆 1外表面位于前端螺纹接头 5和尾部螺纹接头 6 处均设有扳手卡槽 3，扳手卡槽 3为棱柱形或方形。所述的空心套管 2上缠绕有呈螺旋状 的连接线 4，连接线 4的螺旋方向与钻杆工作转动方向相反，连接线 4与空心钻杆 1内孔 形成螺旋形缝隙； 空心套管 2尾部设有隔水插槽 7。  1 and 2, the anchorage prevention drill pipe of the coal mine floor of the invention is mainly composed of a hollow drill pipe 1 and a hollow casing 2, and the hollow casing 2 is arranged in the hollow drill pipe 1, and the hollow drill pipe 1 The front end is provided with a front end threaded joint 5, and the rear end is provided with a tail threaded joint 6. The outer surface of the hollow drill rod 1 is provided with a wrench card slot 3 at the front end threaded joint 5 and the tail threaded joint 6, and the wrench card slot 3 It is prismatic or square. The hollow sleeve 2 is wound with a spiral connecting line 4, the spiral direction of the connecting line 4 is opposite to the working direction of the drill pipe, and the connecting line 4 forms a spiral gap with the inner hole of the hollow drill pipe 1; There is a water-proof slot 7 at the end of the 2nd.
工作过程： 钻杆与钻机和钻头连接后， 将空心套管 2插入隔水插槽 7， 并用扳手扣住 扳手卡槽 3将钻杆拧紧， 实现钻杆首尾相接， 加长钻杆。 钻机通过尾部螺纹接头 6带动 钻杆转动， 进行钻孔工作。 同时， 加压清水通过空心钻杆 1和空心套管 2之间的空腔进 入钻杆， 随着空心钻杆 1和空心套管 2之间的螺旋状连接线 4转动输送到钻头， 清洗钻 孔， 螺旋状连接线 4有很好的加压导水效果和固定空心套管 2的效果； 空心套管 2内为 排污通道， 钻孔清洗过程中， 通过钻机中的抽污装置， 将污水经钻头吸入煤矿底板锚固 防堵钻杆的空心套管 2内， 从而实现污水的排出。 该设备解决了传统的钻孔方式在底板 施工容易造成堵孔的问题， 节省了在钻进过程中退钻、 清孔等极为繁琐的工作程序， 实 现了钻进、 清理、 排污工序的同时进行。  Working process: After connecting the drill pipe to the drill and the drill bit, insert the hollow sleeve 2 into the water-proof slot 7 and use a wrench to fasten the wrench slot. 3 Tighten the drill pipe to realize the end-to-end connection of the drill pipe and lengthen the drill pipe. The drill rig moves the drill pipe through the tail threaded joint 6 to perform drilling work. At the same time, the pressurized fresh water enters the drill pipe through the cavity between the hollow drill pipe 1 and the hollow casing 2, and the spiral connection line 4 between the hollow drill pipe 1 and the hollow casing 2 is rotationally conveyed to the drill bit, and the cleaning drill is cleaned. The hole, the spiral connecting line 4 has a good pressurized water guiding effect and the effect of fixing the hollow sleeve 2; the hollow sleeve 2 is a sewage passage, and during the drilling cleaning process, the sewage is passed through the suction device in the drilling machine The drill bit is sucked into the hollow casing 2 of the coal mine floor to anchor the anti-blocking drill pipe, thereby discharging the sewage. The device solves the problem that the traditional drilling method is easy to cause hole blocking in the construction of the bottom plate, and saves the extremely cumbersome working procedure of drilling and clearing holes during the drilling process, and realizes the drilling, cleaning and sewage discharging processes at the same time.

Claims

权利要求书 Claim
1. 一种煤矿底板锚固防堵钻杆， 包括空心钻杆 （1)， 其特征在于： 所述的空心钻杆 (1) 内的设有空心套管 （2)， 空心钻杆 （1) 的前端设有前端螺纹接头 （5)， 后端设有 尾部螺纹接头 （6)， 所述的空心套管 （2) 上缠绕有呈螺旋状的连接线 （4)， 连接线 (4) 的螺旋方向与钻杆工作转动方向相反， 连接线 （4) 与空心钻杆 （1) 内孔形成螺旋 形缝隙； 空心套管 （2) 尾部设有隔水插槽 （7)。 A coal mine floor anchoring anti-blocking drill pipe, comprising a hollow drill pipe (1), characterized in that: the hollow drill pipe (1) is provided with a hollow casing (2), a hollow drill pipe (1) The front end is provided with a front threaded joint (5), the rear end is provided with a tail threaded joint (6), and the hollow sleeve (2) is wound with a spiral connecting line (4), the connecting line (4) The spiral direction is opposite to the working direction of the drill pipe. The connecting wire (4) forms a spiral gap with the inner hole of the hollow drill pipe (1); the hollow casing (2) has a water blocking slot (7) at the tail.
2. 根据权利要求 1 所述的煤矿底板锚固防堵钻杆， 其特征在于： 所述的空心钻杆 (1) 外表面位于前端螺纹接头 （5) 和尾部螺纹接头 （6) 处均设有扳手卡槽 （3)。  2. The coal mine floor anchorage anti-blocking drill pipe according to claim 1, wherein: the outer surface of the hollow drill pipe (1) is located at the front end threaded joint (5) and the tail threaded joint (6). Wrench card slot (3).
3. 根据权利要求 2 所述的煤矿底板锚固防堵钻杆， 其特征在于： 所述的扳手卡槽 (3) 为棱柱形或方形。 3. The coal mine floor anchorage anti-blocking drill pipe according to claim 2, wherein: the wrench card slot (3) is prismatic or square.
PCT/CN2014/072184 2013-07-26 2014-02-18 Anchoring and anti-blocking drill rod for coal mine floor WO2015010463A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2014295717A AU2014295717B2 (en) 2013-07-26 2014-02-18 Anchoring and anti-blocking drill rod for coal mine floor
RU2016106945A RU2662831C2 (en) 2013-07-26 2014-02-18 Drill rod with the locking counteraction for the coal mine roadway floor anchoring
US15/006,035 US20160138397A1 (en) 2013-07-26 2016-01-25 Anchoring and anti-clogging drill rod for coal mine floor
ZA2016/01348A ZA201601348B (en) 2013-07-26 2016-02-26 Anchoring and anti-blocking drill rod for coal mine floor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310319386.8A CN103382817B (en) 2013-07-26 2013-07-26 The anti-blocking drilling rod of a kind of mine floor anchoring
CN201310319386.8 2013-07-26

Related Child Applications (1)

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US15/006,035 Continuation US20160138397A1 (en) 2013-07-26 2016-01-25 Anchoring and anti-clogging drill rod for coal mine floor

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Publication Number Publication Date
WO2015010463A1 true WO2015010463A1 (en) 2015-01-29

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Application Number Title Priority Date Filing Date
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US (1) US20160138397A1 (en)
CN (1) CN103382817B (en)
AU (1) AU2014295717B2 (en)
RU (1) RU2662831C2 (en)
WO (1) WO2015010463A1 (en)
ZA (1) ZA201601348B (en)

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CN103382817B (en) * 2013-07-26 2016-01-20 中国矿业大学 The anti-blocking drilling rod of a kind of mine floor anchoring
CN104806176A (en) * 2015-04-24 2015-07-29 周延卿 Low-resistance sliding type drill rod for geological horizontal drilling rig
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