WO2015196934A1 - 一种固体充填物料投料管 - Google Patents

一种固体充填物料投料管 Download PDF

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Publication number
WO2015196934A1
WO2015196934A1 PCT/CN2015/081322 CN2015081322W WO2015196934A1 WO 2015196934 A1 WO2015196934 A1 WO 2015196934A1 CN 2015081322 W CN2015081322 W CN 2015081322W WO 2015196934 A1 WO2015196934 A1 WO 2015196934A1
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WO
WIPO (PCT)
Prior art keywords
layer
feeding pipe
filling material
intermediate layer
solid filling
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Application number
PCT/CN2015/081322
Other languages
English (en)
French (fr)
Inventor
张吉雄
邓雪杰
巨峰
安百富
Original Assignee
张吉雄
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
Priority claimed from CN201410291424.8A external-priority patent/CN104047631B/zh
Application filed by 张吉雄 filed Critical 张吉雄
Publication of WO2015196934A1 publication Critical patent/WO2015196934A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00—Methods or devices for placing filling-up materials in underground workings

Definitions

  • the invention relates to a solid filling material feeding pipe, in particular to a pipe material for placing ground solid materials into a well and used for filling material transportation in coal mine and metal mine filling and mining.
  • the object of the present invention is to provide a solid filling material feeding pipe with simple structure, safe and efficient, long service life and good use effect against the problems existing in the prior art.
  • the solid filling material feeding pipe of the invention comprises a three-layer structure feeding pipe arranged in the feeding hole, the concrete is poured between the three-layer structure feeding pipe and the feeding drilling hole, and the three-layer structure feeding pipe is from the outside to the inside.
  • the protective layer, the intermediate layer and the wear layer in this order.
  • the protective layer and the intermediate layer are seamless steel tubes, the thickness of the protective layer is not less than 14 mm, the thickness of the intermediate layer is not less than 12 mm, and the outer wall of the intermediate layer is closely attached to the inner wall of the protective layer, and the two are welded together.
  • the wear-resistant layer is centrifugally cast on the inner wall of the intermediate layer by a high-chromium nickel-molybdenum rare earth alloy wear-resistant material, and has a thickness of 15 mm to 65 mm.
  • the invention has the beneficial effects that the solid filling material can be safely and efficiently delivered to the underground in the solid filling mining, and can be applied to the range of tens of meters to the upper kilometer of the conveying height, and the special structure of the feeding tube can ensure the solid filling material.
  • the delivery channel is safe and reliable, resists the wear of the solid material to the delivery channel, and prolongs the service life of the channel.
  • the invention has the advantages of simple structure, strong adaptability and wide application value.
  • FIG. 1 is a schematic view showing the structure of a solid filling material feeding pipe of the present invention.
  • Figure 2 is a cross-sectional view of the solid filling material feed pipe of the present invention.
  • the solid filling material feeding pipe of the present invention is mainly composed of a three-layer structure feeding pipe 3, and the three-layer structure feeding pipe 3 is installed in a feeding hole 2 which is vertically downwardly laid from the ground 1 to the downhole.
  • the concrete pipe 7 is poured between the feeding pipe 3 of the three-layer structure and the feeding hole 2, and the feeding pipe 3 of the three-layer structure is fixed by the poured concrete to form a passage for conveying the filling material from the ground to the underground.
  • the structure of the feeding pipe 3 is divided into three layers, and the protective layer 4, the intermediate layer 5, and the wear layer 6 are sequentially from the outside to the inside.
  • the protective layer 4 and the intermediate layer 5 are both seamless steel tubes, the thickness of the protective layer 4 is not less than 14 mm, the thickness of the intermediate layer 5 is not less than 12 mm, and the outer wall of the intermediate layer is in close contact with the inner wall of the protective layer, and the two are welded.
  • the wear-resistant layer 6 is centrifugally cast on the inner wall of the intermediate layer 5 by a high-chromium nickel-molybdenum rare earth alloy wear-resistant material, and the thickness is determined according to the depth of the drilled hole, the throughput and the nature of the solid filling material, and is generally 15 mm to 65 mm.
  • the three-layer structure feeding pipe 3 installed in the feeding hole 2 can realize continuous, safe and efficient transportation of the solid filling material from the ground to the underground, and has high wear resistance and good reliability, and can be obtained in the production process. Longer service life, which reduces the cost of using the business.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Revetment (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

一种固体充填物料投料管，包括设在投料钻孔（2）内的三层结构投料管（3），三层结构投料管（3）与投料钻孔（2）之间浇筑有混凝土（7），三层结构投料管（3）从外往内依次为防护层（4）、中间层（5）和耐磨层（6），防护层（4）和中间层（5）均为无缝钢管，中间层（5）的外壁紧贴防护层（4）内壁，二者采用焊接连接，耐磨层（6）采用耐磨材料离心浇铸于中间层（5）内壁上。投料管可实现固体充填物料从地面至井下的连续投放输送，保证较长的服务年限和较低的使用成本。

Description

一种固体充填物料投料管 技术领域
本发明涉及一种固体充填物料投料管，尤其是一种将地面固体物料投放至井下，用于煤矿及金属矿山充填开采中充填物料输送的管材。
背景技术
传统的煤炭及非煤资源的开采会造成地面塌陷，地下水位下降，排放废弃物污染环境等一系列的问题。充填开采方法的出现很好的解决了这些问题，特别是固体充填开采，不仅能够控制采空区岩层移动，同时还能处理矿区如矸石、尾矿、粉煤灰等固体废弃物，避免了这些固体废弃物在地表堆积对环境造成的破坏。在固体充填开采技术日趋成熟的今天，如何利用先进的技术手段，实现固体物料从地面至井下从数十米到上千米高差的连续运输，保证充填物料的连续可控供给，是目前亟需解决的难题。
发明内容
技术问题：本发明的目的是针对已有技术中存在的问题，提供一种结构简单、安全高效、服务年限长、使用效果好的固体充填物料投料管。
技术方案：本发明的固体充填物料投料管，包括设在投料钻孔内的三层结构投料管，三层结构投料管与投料钻孔之间浇筑有混凝土，三层结构投料管从外往内依次为防护层、中间层和耐磨层。
所述的防护层和中间层均为无缝钢管，防护层厚度不小于14mm，中间层厚度不小于12mm，中间层的外壁紧贴防护层的内壁，二者焊接在一起。
所述的耐磨层采用高铬镍钼稀土合金耐磨材料离心浇铸于中间层内壁上，厚度为15mm～65mm。
有益效果：本发明在固体充填开采中可以实现将地面固体充填物料安全高效投放输送至井下，可适用于输送高差几十米至上千米的范围，投料管结构的特殊性可以确保固体充填物料投放输送通道的安全可靠，抵抗固体物料对投放输送通道的磨损，延长输送通道的使用寿命。本发明结构简单，适应性强，具有广泛的推广应用价值。
附图说明
图1是本发明固体充填物料投料管结构示意图。
图2是本发明固体充填物料投料管的剖视图。
图中：1-地面，2-投料钻孔，3-投料管，4-防护层，5-中间层，6-耐磨层，7-混凝土。
具体实施方式
下面结合附图对本发明的实施例作进一步的描述：
如图1所示，本发明的固体充填物料投料管，主要由三层结构的投料管3构成，三层结构的投料管3安装于由地面1垂直向下施工至井下的投料钻孔2内，三层结构的投料管3与投料钻孔2之间浇筑有混凝土7，通过浇筑的混凝土对三层结构的投料管3进行固定，形成将充填物料由地面投放输送至井下的通道。
如图2所示，投料管3的结构分为3层，从外往内依次为防护层4、中间层5和耐磨层6。防护层4和中间层5均为无缝钢管，防护层4厚度不小于14mm，中间层5厚度不小于12mm，中间层的外壁紧贴防护层内壁，二者采用焊接连接。耐磨层6采用高铬镍钼稀土合金耐磨材料离心浇铸于中间层5内壁上，厚度根据投料钻孔深度、固体充填物料通过量及性质共同决定，一般为15mm～65mm。
所述安装于投料钻孔2内的三层结构投料管3，可以实现固体充填物料从地面到井下的连续、安全、高效运输，其耐磨程度高，可靠性好，可以在生产过程中获得更长的服务年限，从而降低企业的使用成本。

Claims (3)

  1. 一种固体充填物料投料管，其特征在于：它包括设在投料钻孔(2)内的三层结构投料管(3)，三层结构投料管(3)与投料钻孔(2)之间浇筑有混凝土(7)，三层结构投料管(3)从外往内依次为防护层(4)、中间层(5)和耐磨层(6)。
  2. 根据权利要求1所述的固体充填物料投料管，其特征在于：所述的防护层(4)和中间层(5)均为无缝钢管，防护层(4)厚度不小于14mm，中间层(5)厚度不小于12mm，中间层(5)的外壁紧贴防护层(4)的内壁，二者焊接在一起。
  3. 根据权利要求1所述的固体充填物料投料管，其特征在于：所述的耐磨层(6)采用高铬镍钼稀土合金耐磨材料离心浇铸于中间层(5)内壁上，厚度为15mm～65mm。
PCT/CN2015/081322 2014-06-25 2015-06-12 一种固体充填物料投料管 WO2015196934A1 (zh)

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CN115108327A (zh) * 2022-08-01 2022-09-27 安徽理工大学 一种具有碳封存功能的充填膏体气裹运输装置

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Publication number Priority date Publication date Assignee Title
CN115108327A (zh) * 2022-08-01 2022-09-27 安徽理工大学 一种具有碳封存功能的充填膏体气裹运输装置

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