WO2018058770A1 - 一种夯实刮板输送机及夯实方法 - Google Patents

一种夯实刮板输送机及夯实方法 Download PDF

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Publication number
WO2018058770A1
WO2018058770A1 PCT/CN2016/106617 CN2016106617W WO2018058770A1 WO 2018058770 A1 WO2018058770 A1 WO 2018058770A1 CN 2016106617 W CN2016106617 W CN 2016106617W WO 2018058770 A1 WO2018058770 A1 WO 2018058770A1
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tamping
shearer
compacting
transition
hydraulic support
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PCT/CN2016/106617
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English (en)
French (fr)
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张吉雄
方坤
张强
邰阳
董祥俭
钟思见
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中国矿业大学
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Publication of WO2018058770A1 publication Critical patent/WO2018058770A1/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
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/06—Transport of mined material at or adjacent to the working face
    • E21F13/066—Scraper chain conveyors

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  • the invention relates to a tamping scraper conveyor for solid filling mining and a tamping method, and is particularly suitable for mining pure solid filling or solid filling-fully mechanized mining working face adopted under horizontal and near horizontal coal seam conditions.
  • the object of the present invention is to overcome the deficiencies in the prior art and provide a tamping scraper conveyor and a tamping method for solid filling mining with simple structure, convenient operation, improved filling efficiency, and good filling effect. .
  • the tamping scraper conveyor of the present invention comprises a hydraulic support disposed on a working surface, wherein a lifting platform on both sides of the tail of the hydraulic support head is provided with a steering wheel hub, and a hydraulic support tail at the rear of the hydraulic support
  • They are respectively disposed between adjacent hydraulic supports and are located on two sides of a plurality of pairs of compact cylinders, and a plurality of pairs of hanging chains are respectively fixed with transition scrapers, and the transition scrapers are arranged between adjacent hydraulic supports by hanging chains Suspended on the tail beam of the hydraulic support;
  • the transition screed is alternately arranged with the tamping squeegee,
  • a card slot for restricting horizontal movement of the tamping blade and the transition screed is disposed between the tamping blade and the transition screed.
  • the tamping method of the tamping scraper conveyor when filling, the blanking is sequentially performed from the tail of the tamping scraper conveyor to the head, first opening the first unloading port of the tail of the tamping scraper conveyor, the section The gob area under the tamping scraper conveyor is filled with blanking material.
  • the second unloading port is opened for blanking; when the second unloading port is opened, the second closing is completed.
  • a discharge port is simultaneously activated, and the tamping cylinder is started.
  • the tamping cylinder is used to control the squeegee movement on the squeegee, and the filling material at the first discharge port is tamped once; after the compaction is compacted, the second discharge port is closed. At the same time, the first discharge port is opened for secondary blanking. When the blanking contact is contacted for the second time, the second discharge port is opened, and the first discharge port is closed, and the first discharge is closed. The mouth is no longer compact. At this time, the filling of the underlying space of the first unloading port is completed, and the cycle is repeated. After the entire working surface is completely filled and compacted, the filling work of the goaf is stopped, and coal mining and pushing, Move the work and enter the next filling process.
  • the invention has the advantages that the above technical solution is adopted, the invention can realize the high-efficiency recovery of the coal resources under the “under the building, under the water body and under the railway”, and has broad application prospects in the horizontal coal seam solid filling coal mining. Especially suitable for solid filling mining technology under horizontal coal seam conditions.
  • the invention can also avoid the tamping mechanism and the scraping plate conveying in the ordinary filling coal mining process.
  • the utility model has the advantages of simple structure, convenient operation, high filling efficiency, good filling effect and wide practicality.
  • Figure 1 is a front elevational view and a cross-sectional view of a tamping blade conveyor of the present invention.
  • Figure 2 is a cross-sectional view of the tamping blade section of the tamping blade conveyor of the present invention.
  • Figure 3 is a cross-sectional view of the transition squeegee section of the tamping blade conveyor of the present invention.
  • Figure 4 is a schematic illustration of the tamping process of the present invention.
  • Figure 5 is a schematic view of the structure of the card slot of the present invention.
  • the tamping scraper conveyor of the present invention mainly comprises a squeegee 5, a transition screed 6, a tamping cylinder 2, a squeegee chain 4, a chain 3, a steering hub 7, a pulling cylinder 9, a plug 10 and a lifting platform 11. .
  • a steering wheel hub 7 is arranged on the lifting platform 11 on both sides of the hydraulic support head of the working surface, and a plurality of pairs of tamping cylinders 2 and a plurality of pairs of hanging chains 3 are symmetrically fixed directly below the hydraulic support tail beam 1 at the rear of the hydraulic support.
  • a plurality of tamping cylinders 2 are respectively fixed with tamping scrapers 5, and the tamping cylinder 2 controls the tamping squeegee 5 to move up and down to achieve tamping of the filling materials;
  • the plurality of pairs of hanging chains 3 are respectively disposed between adjacent hydraulic supports, Located on two sides of the plurality of pairs of tamping cylinders 2, a plurality of pairs of slings 3 are respectively fixed with a transition screed 6 disposed between adjacent hydraulic supports, and suspended by the hanging chain 3 on the tail beams of the hydraulic support 1;
  • the transition screed 6 and the tamping squeegee 5 are alternately arranged, integrally connected via the squeegee chain 4, and between the tamping squeegee 5 and the transition screed 6 are provided with a tamping squeegee 5 and a transition screed 6 Horizontally moved card slot.
  • the bottom of the squeegee chain 4 is located at the middle of the tamping squeegee 5, and is provided with a pulling cylinder 9, the right side of the tamping squeegee 5 is provided with a discharge opening 8, and the discharge opening 8 is provided with a sealing discharge opening.
  • the inserting plate 10 controls the closing of the discharge opening 8 by pushing and pulling the inserting plate 10.
  • the tamping squeegee 5 and the transition squeegee 6 are linked together through the card slot, and the card slot between the tamping squeegee 5 and the transition screed 6 limits the horizontal movement of the tamping squeegee 5 and the transition screed 6 but does not limit its movement up and down;
  • the squeegee 5 is fixed on the hydraulic support tail beam 1 by the tamping cylinder 2, and the transition screed 6 is suspended by the hanging chain 3 on the hydraulic support tail beam 1;
  • the steering wheel hub 7 is fixed
  • the scraper chain 4 can be closely attached to the tamping scraper 5 and the transition scraper 6;
  • a discharge opening 8 is provided to provide a passage for blanking
  • the discharge port 8 can be sealed by the inserting plate 10, and the pulling cylinder 9 controls the closing of the discharge opening 8 by pushing and pulling the inserting plate 10.
  • the pulling cylinder 9 is arranged on the tamping scraper 5; the tamping cylinder 2 can control the tamping of the squeegee 5 up and down, thereby achieving compaction of the filling material.
  • the tamping method of the invention when filling, the blanking is carried out sequentially from the tail of the tamping scraper conveyor to the head, first opening the first unloading port of the tail of the tamping scraper conveyor, and conveying the tamping scraper of the squeegee
  • the goaf under the machine is filled with blanking.
  • the second unloading port is opened for blanking; when the second unloading port is opened, the first unloading is closed.
  • the tamping cylinder 2 is started, and the tamping squeegee 5 is controlled to move up and down by the tamping cylinder 2, and the filling material at the first discharging port is tamped once; after one tamping and compacting, the second discharging port is closed, and at the same time Open the first discharge port for secondary blanking.
  • the blanking material contacts the tamping scraper conveyor for the second time, open the second discharge port and close the first discharge port.
  • the first discharge port No longer compact at this time, the filling of the underlying space of the first unloading port is completed, and the cycle is repeated, so that after the entire working surface is fully filled and compacted, the filling work of the goaf is stopped, and coal mining, pushing, and moving are performed. Work and enter the next filling process.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Loading Or Unloading Of Vehicles (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Ship Loading And Unloading (AREA)

Abstract

一种夯实刮板输送机及夯实方法，适用于煤矿井下的充填开采。它包括夯实刮板（5）、过渡刮板（6）、夯实油缸（2）、刮板链（4）、挂链（3）、转向轮毂（7）、升降平台（11）、卸料口（8）、插板（10）、拉移油缸（9）。夯实刮板（5）布置在液压支架尾梁（1）正下方，过渡刮板（6）布置在相邻液压支架之间，夯实刮板（5）和过渡刮板（6）间通过卡槽链接，夯实刮板（5）通过夯实油缸（2）固定在液压支架尾梁（1）上，过渡刮板（6）用挂链（3）悬挂在液压支架尾梁（1）上；转向轮毂（7）固定在机头机尾底座上；在夯实刮板（5）右侧开有卸料口（8），卸料口（8）可由插板（10）密封，拉移油缸（9）通过推拉插板（10）控制卸料口（8）的闭合；夯实油缸（2）可以控制夯实刮板（5）上下移动，实现对充填物料的夯实。本夯实刮板输送机可以实现物料的自我落料和夯实，对采空区充填效果好，在水平煤层条件下适用性能优异。

Description

一种夯实刮板输送机及夯实方法 技术领域
本发明涉及一种固体充填开采的夯实刮板输送机及夯实方法，尤其适用于水平及近水平煤层条件下采用的纯固体充填或固体充填-综采混采工作面的开采。
背景技术
在煤炭日益下行的形势下，煤矿企业面临着提高经济效益并要兼顾安全、环保开采的矛盾局面。虽然固体充填采煤技术有效实现了建筑物下、水体下及铁路下压煤的安全环保开采，但充填工作面的反复夯实制约了工作面产量的提高，同时，夯实机构的夯实方向也会导致大量充填物料涌至采空区前方，另外夯实机构的夯实角度与多孔底卸式刮板输送机之间的干涉效应使充填体接顶效果并不理想，因此提供一种能够提高充填效率且充填效果良好的夯实机构意义重大。
发明内容
技术问题：本发明的目的是要克服现有技术中的不足之处，提供一种结构简单、操作方便、能够提高充填效率、且充填效果良好的固体充填开采的夯实刮板输送机及夯实方法。
技术方案：本发明的夯实刮板输送机，包括设在工作面上的液压支架，所述的液压支架机头机尾两侧的升降平台上设有转向轮毂，液压支架后部的液压支架尾梁正下方对称固定有多对夯实油缸和多对挂链，多对夯实油缸上分别固定有夯实刮板，夯实油缸控制夯实刮板上下移动，实现对充填物料的夯实；所述多对挂链分别设在相邻的液压支架之间、位于多对夯实油缸的两侧，多对挂链上分别固定有过渡刮板，所述过渡刮板布置在相邻的液压支架之间，由挂链悬挂在液压支架尾梁上；过渡刮板与夯实刮板交替布置，经刮板链连接为一体，所述刮板链的底部位于夯实刮板的中间设有拉移油缸，所述夯实刮板的右侧开有卸料口，卸料口上设有密封卸料口有插板，通过推拉插板控制卸料口的闭合。
所述夯实刮板和过渡刮板之间设有限制夯实刮板和过渡刮板的水平移动的卡槽。
上述夯实刮板输送机的夯实方法：充填时，落料从夯实刮板输送机机尾向机头方向依次进行，先打开夯实刮板输送机机尾的第一个卸料口，对该段夯实刮板输送机下的采空区进行落料充填，待落料快接触夯实刮板输送机时，打开第二个卸料口进行落料；打开第二个卸料口的同时，关闭第一个卸料口，同时启动夯实油缸，通过夯实油缸控制夯实刮板上下移动，对第一个卸料口处的充填物料进行一次夯实；待一次夯实致密后，关闭第二个卸料口，同时开启第一个卸料口进行二次落料，当落料第二次接触到夯实刮板输送机时，打开第二个卸料口，同时关闭第1个卸料口，第一个卸料口不再夯实，此时完成第一个卸料口下覆空间的充填，依次循环，至使整个工作面全部充填并压实后，停止采空区充填工作，进行采煤、推溜、 移架工作，进入下一次充填工艺。
有益效果：由于采用了上述技术方案，本发明可以实现“建筑物下、水体下、铁路下”压煤资源的高效回收，在水平煤层固体充填采煤中具有广阔的应用前景。尤其适用于水平煤层条件下的固体充填开采技术。与现有技术相比，不仅可以提供工作面充填物料的输送途径和通道，还可以实现对充填体的高效致密一次夯实，另外本发明还可以避免普通充填采煤工艺中夯实机构与刮板输送机的干涉效应。其结构简单，操作方便，充填效率高，充填效果好，具有广泛的实用性。
附图说明
图1是本发明的夯实刮板输送机正视图及剖视图。
图2是本发明的夯实刮板输送机夯实刮板段剖视图。
图3是本发明的夯实刮板输送机过渡刮板段剖视图。
图4是本发明的夯实工艺示意图。
图5是本发明的卡槽结构示意图。
图中：1-支架尾梁，2-夯实油缸，3-挂链，4-刮板链，5-夯实刮板，6-过渡刮板，7-转向轮毂，8-卸料口，9-拉移油缸，10-插板，11-升降平台。
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的描述：
本发明的夯实刮板输送机，主要夯实刮板5、过渡刮板6、夯实油缸2、刮板链4、挂链3、转向轮毂7、拉移油缸9、插板10和升降平台11构成。在工作面上的液压支架机头机尾两侧的升降平台11上设置转向轮毂7，液压支架后部的液压支架尾梁1正下方对称固定有多对夯实油缸2和多对挂链3，多对夯实油缸2上分别固定有夯实刮板5，夯实油缸2控制夯实刮板5上下移动，实现对充填物料的夯实；所述多对挂链3分别设在相邻的液压支架之间、位于多对夯实油缸2的两侧，多对挂链3上分别固定有过渡刮板6，所述过渡刮板6布置在相邻的液压支架之间，由挂链3悬挂在液压支架尾梁1上；过渡刮板6与夯实刮板5交替布置，经刮板链4连接为一体，所述夯实刮板5和过渡刮板6之间设有限制夯实刮板5和过渡刮板6的水平移动的卡槽。所述刮板链4的底部位于夯实刮板5的中间设有拉移油缸9，所述夯实刮板5的右侧开有卸料口8，卸料口8上设有密封卸料口有插板10，通过推拉插板10控制卸料口8的闭合。
夯实刮板5和过渡刮板6通过卡槽链接在一起，夯实刮板5和过渡刮板6间的卡槽限制夯实刮板5和过渡刮板6的水平移动但不限制其上下移动；夯实刮板5通过夯实油缸2固定在液压支架尾梁1上，而过渡刮板6通过挂链3悬挂在液压支架尾梁1上；转向轮毂7固定 在夯实刮板输送机机头机尾底座上，可以实现刮板链4紧贴夯实刮板5和过渡刮板6；在夯实刮板5右侧开有卸料口8，提供落料的通道，卸料口8可由插板10密封，拉移油缸9通过推拉插板10控制卸料口8的闭合，为避免夯实工序对拉移油缸9的影响，将拉移油缸9布置在夯实刮板5中；夯实油缸2可以控制夯实刮板5上下移动，从而实现对充填物料的夯实。
本发明的夯实方法：充填时，落料从夯实刮板输送机机尾向机头方向依次进行，先打开夯实刮板输送机机尾的第一个卸料口，对该段夯实刮板输送机下的采空区进行落料充填，待落料快接触夯实刮板输送机时，打开第二个卸料口进行落料；打开第二个卸料口的同时，关闭第一个卸料口，同时启动夯实油缸2，通过夯实油缸2控制夯实刮板5上下移动，对第一个卸料口处的充填物料进行一次夯实；待一次夯实致密后，关闭第二个卸料口，同时开启第一个卸料口进行二次落料，当落料第二次接触到夯实刮板输送机时，打开第二个卸料口，同时关闭第1个卸料口，第一个卸料口不再夯实，此时完成第一个卸料口下覆空间的充填，依次循环，至使整个工作面全部充填并压实后，停止采空区充填工作，进行采煤、推溜、移架工作，进入下一次充填工艺。

Claims (3)

  1. 一种夯实刮板输送机，包括设在工作面上的液压支架，其特征在于：所述的液压支架机头机尾两侧的升降平台(11)上设有转向轮毂(7)，液压支架后部的液压支架尾梁(1)正下方对称固定有多对夯实油缸(2)和多对挂链(3)，多对夯实油缸(2)上分别固定有夯实刮板(5)，夯实油缸(2)控制夯实刮板(5)上下移动，实现对充填物料的夯实；所述多对挂链(3)分别设在相邻的液压支架之间、位于多对夯实油缸(2)的两侧，多对挂链(3)上分别固定有过渡刮板(6)，所述过渡刮板(6)布置在相邻的液压支架之间，由挂链(3)悬挂在液压支架尾梁(1)上；过渡刮板(6)与夯实刮板(5)交替布置，经刮板链(4)连接为一体，所述刮板链(4)的底部位于夯实刮板(5)的中间设有拉移油缸(9)，所述夯实刮板(5)的右侧开有卸料口(8)，卸料口(8)上设有密封卸料口有插板(10)，通过推拉插板(10)控制卸料口(8)的闭合。
  2. 根据权利要求1所述的夯实刮板输送机，其特征在于：所述夯实刮板(5)和过渡刮板(6)之间设有限制夯实刮板(5)和过渡刮板(6)的水平移动的卡槽。
  3. 根据权利要求1所述的夯实刮板输送机的夯实方法，其特征在于：充填时，落料从夯实刮板输送机机尾向机头方向依次进行，先打开夯实刮板输送机机尾的第一个卸料口，对该段夯实刮板输送机下的采空区进行落料充填，待落料快接触夯实刮板输送机时，打开第二个卸料口进行落料；打开第二个卸料口的同时，关闭第一个卸料口，同时启动夯实油缸(2)，通过夯实油缸(2)控制夯实刮板(5)上下移动，对第一个卸料口处的充填物料进行一次夯实；待一次夯实致密后，关闭第二个卸料口，同时开启第一个卸料口进行二次落料，当落料第二次接触到夯实刮板输送机时，打开第二个卸料口，同时关闭第1个卸料口，第一个卸料口不再夯实，此时完成第一个卸料口下覆空间的充填，依次循环，至使整个工作面全部充填并压实后，停止采空区充填工作，进行采煤、推溜、移架工作，进入下一次充填工艺。
PCT/CN2016/106617 2016-09-26 2016-11-21 一种夯实刮板输送机及夯实方法 WO2018058770A1 (zh)

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CN201610851121.6A CN106351690B (zh) 2016-09-26 2016-09-26 一种夯实刮板输送机及夯实方法
CN201610851121.6 2016-09-27

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