WO2015010463A1 - 一种煤矿底板锚固防堵钻杆 - Google Patents

一种煤矿底板锚固防堵钻杆 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
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.)
Ceased
Application number
PCT/CN2014/072184
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English (en)
French (fr)
Inventor
马占国
龚鹏
张帆
赵国贞
贺纯纯
马云靖
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.)
China University of Mining and Technology CUMT
China University of Mining and Technology Beijing CUMTB
Original Assignee
China University of Mining and Technology CUMT
China University of Mining and Technology Beijing CUMTB
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 China University of Mining and Technology CUMT, China University of Mining and Technology Beijing CUMTB filed Critical China University of Mining and Technology CUMT
Priority to AU2014295717A priority Critical patent/AU2014295717B2/en
Priority to RU2016106945A priority patent/RU2662831C2/ru
Publication of WO2015010463A1 publication Critical patent/WO2015010463A1/zh
Priority to US15/006,035 priority patent/US20160138397A1/en
Anticipated expiration legal-status Critical
Priority to ZA2016/01348A priority patent/ZA201601348B/en
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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 OR ROCK 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 OR ROCK 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 OR ROCK 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 OR ROCK 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

一种煤矿底板锚固防堵钻杆，包括空心钻杆（1），空心套管（2），设在空心钻杆端头的螺纹接头，设在空心钻杆外表面，位于前端螺纹接头（5）和尾部螺纹接头（6）之间的棱柱状扳手卡槽（3），设在空心套管和空心钻杆之间的螺旋状连接线（4），设在空心套管尾部的隔水插槽（7）。该设备不仅可以对煤矿底板进行钻孔，还可以实现钻进、清理、排污同时进行。其结构简单，适应性强，容易操作，防堵效果好，具有广泛的实用性。

Description

一种煤矿底板锚固防堵钻杆
技术领域
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。
背景技术
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。
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。
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。
发明内容
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。
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。
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。
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。
附图说明
图 1为本发明的结构示意图；
图 2为空心套管结构示意图。
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。
具体实施方式
下面结合附图对本发明的一个实施例作进一步描述：
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。
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。

Claims

权利要求书
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)。
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)。
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。
PCT/CN2014/072184 2013-07-26 2014-02-18 一种煤矿底板锚固防堵钻杆 Ceased WO2015010463A1 (zh)

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 (ru) 2013-07-26 2014-02-18 Бурильная штанга с противодействием блокированию для анкерного крепления подошвы выработки угольной шахты
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
CN201310319386.8 2013-07-26
CN201310319386.8A CN103382817B (zh) 2013-07-26 2013-07-26 一种煤矿底板锚固防堵钻杆

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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WO2015010463A1 true WO2015010463A1 (zh) 2015-01-29

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Country Link
US (1) US20160138397A1 (zh)
CN (1) CN103382817B (zh)
AU (1) AU2014295717B2 (zh)
RU (1) RU2662831C2 (zh)
WO (1) WO2015010463A1 (zh)
ZA (1) ZA201601348B (zh)

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CN105781456B (zh) * 2016-03-15 2018-04-13 泰安泰烁岩层控制科技有限公司 手持式锚杆钻机干式钻孔粉尘除尘装置及除尘方法
CN114753777A (zh) * 2022-04-28 2022-07-15 中煤科工集团西安研究院有限公司 一种双螺旋槽外覆光纤钻杆及通讯钻机

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CN107237646B (zh) * 2017-06-28 2019-04-26 山东科技大学 大变形恒阻支护注浆锚杆、锚索及巷道定量支护方法
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CN110219605A (zh) * 2019-07-16 2019-09-10 邹城兖矿泰德工贸有限公司 防冲卸压专用刻槽钻杆
CN111877981A (zh) * 2020-08-31 2020-11-03 中国科学院武汉岩土力学研究所 一种软弱泥岩锚杆/索孔的低扰动成孔装置及方法
CN114033315B (zh) * 2021-11-15 2023-09-15 河南理工大学 一种突出煤层盾护卸压孔内钻具及其孔外封闭系统
CN116464042A (zh) * 2023-05-24 2023-07-21 中建八局第二建设有限公司 既有管廊支护条件下双套管锚杆施工方法
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