WO2012155531A1 - 煤与矸石分离并将矸石回填的技术设备 - Google Patents

煤与矸石分离并将矸石回填的技术设备 Download PDF

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Publication number
WO2012155531A1
WO2012155531A1 PCT/CN2012/000642 CN2012000642W WO2012155531A1 WO 2012155531 A1 WO2012155531 A1 WO 2012155531A1 CN 2012000642 W CN2012000642 W CN 2012000642W WO 2012155531 A1 WO2012155531 A1 WO 2012155531A1
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Prior art keywords
coal
conveyor
gangue
scraper conveyor
meteorite
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PCT/CN2012/000642
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English (en)
French (fr)
Inventor
尤步强
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山东新煤机械设备股份有限公司
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Application filed by 山东新煤机械设备股份有限公司 filed Critical 山东新煤机械设备股份有限公司
Priority to AU2012255582A priority Critical patent/AU2012255582B2/en
Priority to RU2013155968/03A priority patent/RU2013155968A/ru
Priority to EP12785061.8A priority patent/EP2713006A4/en
Publication of WO2012155531A1 publication Critical patent/WO2012155531A1/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
    • E21F15/06—Filling-up mechanically
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C41/00—Methods of underground or surface mining; Layouts therefor
    • E21C41/16—Methods of underground mining; Layouts therefor
    • E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
    • 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

Definitions

  • the invention relates to a technical equipment for separating coal and vermiculite from coal and vermiculite when coal is cut by coal mining machine, and backfilling the meteorite into the goaf.
  • Coal is a major source of energy and plays a pivotal role in the national economy.
  • China's coal industry has made important contributions to the development of the national economy for 60 years.
  • Coal accounts for 76% and 69% of China's primary energy production and consumption structure, respectively, which strongly supports the development of the national economy and society.
  • Coal provides 78% of power generation; second, coal is one of China's major chemical raw materials, providing 70% of chemical raw materials; again, coal is an important material for agricultural production and urban people's lives, 60% of civil commodity energy is Provided by coal.
  • coal accounted for 94.3%.
  • China is the world's largest coal-producing country. Among them, 25% of the coal seams have pinch. Because the meteorites are sandwiched in the middle of the coal seam, the traditional coal mining process can only produce coal and vermiculite together. The result is that coal is mixed. A large number of meteorites have caused a significant drop in coal quality. At the same time, a large amount of meteorites are also wasted a lot of manpower and material resources from the underground. In addition, after a large number of meteorites were stepped out, not only increased the goaf space, but also the surface subsidence was intensified, and the meteorites were hoarded on the ground and occupied a large amount of land. The storage time was long. The sulfur in the meteorite burned, causing a large amount of sulfur dioxide to seriously pollute the environment. .
  • the invention aims at the above deficiencies, and provides a technical equipment for separating coal and vermiculite and backfilling vermiculite.
  • the method and the device can realize the separation of coal and vermiculite, and backfill the meteorite with the meteorite, thereby avoiding mixing the coal with the vermiculite. It is transported to the well, saving costs and protecting the environment.
  • the present invention adopts the following technical means:
  • the coal seam is cut by the shearer and the coal is transported to the well by a scraper conveyor, a transfer machine and a belt conveyor.
  • a complete set of equipment for separating coal and vermiculite and backfilling vermiculite including a coal mining machine, and a scraper conveyor capable of reversing and working with a shearer for supporting equipment under the shearer, the scraper conveying
  • the forward transport end of the machine is equipped with a transfer machine, a reverse transport end and a meteorite return transport unit facing the goaf.
  • the meteorite return transporting unit comprises a gangue back running carrier and a throwing squeegee conveyor with a middle slot open plate engaged therewith.
  • the throwing scraper conveyor is suspended at the rear of the hydraulic support; the opening of the throwing scraper transporter is adjustable in size; the throwing scraper conveyor is provided with a hydraulic jack;
  • the transfer machine is located at the transport chute; the meteorite returning operation carrier is located at the return air passage; the scraper conveyor is parallel to the throwing scraper conveyor.
  • Scraper conveyor refers to a conveyor that can be used to transport coal or vermiculite in conjunction with the shearer
  • Reloader means a transfer machine that corresponds to the conveying end of the scraper conveyor and rotates the coal upwards
  • Metal back running carrier means a transfer machine that corresponds to the reverse conveying end of the scraper conveyor and transports the meteorite to the throwing scraper conveyor;
  • Three scraper conveyor refers to a conveyor that cooperates with the meteorite to return to the running vehicle and throws the meteorite to the goaf.
  • the scraper conveyor in front of the work is running forward, the shearer drum rotates to cut coal, and the coal is fed to the scraper conveyor.
  • the scraper conveyor discharges the coal to the transfer machine of the transport slot, and then passes The belt conveyor of the transport lane transports the coal to the well.
  • the upper coal After the upper coal is mined, it reaches the middle vermiculite layer. Because of the invention, the other side of the scraper conveyor, that is, the reverse transport end, adds a meteorite back to the gob in the direction of the transport material, and the cutter is cut in the shearer.
  • the conveying direction of the scraper conveyor is changed, so that the scraper conveyor is reversely operated, the coal mining machine picks up the vermiculite, the vermiculite falls into the scraper conveyor, the scraper conveyor runs in reverse, and the meteorite is discharged to the scraper. Returning to the meteorite transfer machine, the returning meteorite transfer machine unloads the meteorite on the throwing scraper conveyor suspended at the rear of the hydraulic support.
  • the middle plate of each central slot of the rear scraper conveyor has an adjustable opening size.
  • the leakage of the meteorite is evenly thrown in the hollowed out area through the leakage opening of the central groove.
  • the separation and mining of coal and vermiculite are realized, and the problem of backfilling of meteorites is solved, which saves a lot of cost.
  • the front scraper conveyor is running in the front, the shearer cuts the coal, the shearer drum rotates to cut the coal, and the coal is fed to the front scraper conveyor.
  • the front scraper conveyor Discharge the coal onto the transfer machine of the transport chute, and then pass The belt conveyor passing through the transport lane transports the coal to the well and finally completes a cycle.
  • the conveyor and transfer machine of the working surface transportation system are reasonably arranged, with small footprint and compact structure, which is convenient for the operation of the working face and equipment maintenance.
  • the invention can solve the situation that the coal seam is sandwiched with vermiculite without transporting the vermiculite upward, and the coal seam can be separated from the vermiculite, and the vermiculite can be used as the backfill material of the goaf; the transport of the vermiculite with the coal is avoided.
  • Figure 1 is a schematic view of the creation structure of the present invention
  • a complete set of coal and meteorite separation and backfilling equipment comprising a coal mining machine 5, a working front scraper conveyor 1 capable of positive and reverse rotation under the coal mining machine 5, the front part of the work
  • the scraper conveyor 1 cooperates with the shearer 5 and carries the shearer cuts.
  • the forward rotating conveying end of the working front scraper conveyor 1 is matched with a smooth coal conveying machine 2, and the coal conveying machine 2 is arranged in the transportation slot and matched with the retractable belt conveyor.
  • the reverse transport end of the working front scraper conveyor 1 is provided with a meteorite returning operation carrier 3; the meteorite returning operation carrier 3 is arranged in the return air passage, and the conveying material direction is directed toward the gob area and suspended in the hydraulic pressure.
  • the back of the bracket is provided with a meteorite returning operation carrier 3; the meteorite returning operation carrier 3 is arranged in the return air passage, and the conveying material direction is directed toward the gob area and suspended in the hydraulic pressure.
  • the throwing scraper conveyor 4 is arranged in cooperation with the vermiculite back running carrier 3; the throwing scraper conveyor 4 is suspended from the rear of the hydraulic bracket 6 and the size of the middle panel of the middle slot can be adjusted;
  • the squeegee conveyor 4 throws the meteorite into the goaf by using the middle plate middle plate opening, and the slab is uniformly thrown into the gob by the hydraulic jack sequentially adjusting the size of the middle plate opening.
  • the meteorite back-running carrier 3 has a short structure, and the front conveyor 1 is parallel to the throwing scraper conveyor 4.
  • the front scraper conveyor 1 is working in the forward direction, using the scraper conveyor in front of the work 1. Transfer the coal transfer machine in the slot 2.
  • the belt conveyor transports the coal to the well;
  • the intermediate coal gangue layer is cut by the shearer 5, and the reverse operation of the front scraper conveyor 1 is carried out, and the meteorite is transported to the gangue back to the running carrier 3, and the gangue is returned to the running carrier 3 to transport the meteorite to the gob.
  • the throwing scraper conveyor 4 is arranged; the size of the opening of the throwing scraper conveyor 4 is sequentially adjusted, and the meteorite is evenly thrown into the gob;
  • the lower coal seam is cut by the shearer 5, and the front scraper conveyor 1 is operated in the forward direction, and the coal is transported to the well by the front scraper conveyor 1, the transfer machine and the belt conveyor.

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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)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Discharge Of Articles From Conveyors (AREA)

Description

煤与矸石分离并将矸石回填的技术装备 技术领域
本发明涉及一种将煤与矸石在采煤机割煤时就将煤与矸石分离， 并将矸石回填到采空区 的技术装备。
背景技术
煤炭是一种主要的能源， 在国民经济中起着举足轻重的作用。 60年来中国的煤炭工业为 国民经济发展作出了重要贡献。 煤炭在我国一次能源生产和消费结构中， 分别占 76%和 69% 左右， 有力地支撑了国民经济和社会的发展。 煤炭提供了 78%的发电能源； 其次， 煤炭是中 国的主要化工原料之一， 提供了 70%的化工原料； 再次， 煤炭是农业生产和城镇人民生活的 重要物质， 60%的民用商品能源是由煤炭提供。 在探明的能源中， 煤炭占 94.3%。 在未来的 50-60 年内， 随着新能源和可再生能源、 水电和核电的发展， 煤炭在一次能源中的消费比重 会有所下降， 日本 2011年福岛 9.0级大地震后造成的的核泄漏， 世界各国对核能利用更加慎 重。 所以煤炭仍将是我国的主要能源。
我国是世界上第一产煤大国， 其中有 25%的煤层中存在夹矸， 由于矸石夹在煤层中间， 传统的采煤工艺只能将煤和矸石一并采出， 其结果是煤中混入了大量矸石， 导致煤质大幅度 下降。 同时大量矸石由井下运致地面也浪费了大量的人力物力。 另外大量矸石被踩出后， 不 但加大了采空空间， 加剧了地表塌陷， 而且矸石采出在地面囤积还要占用大量土地， 存放时 间一长矸石中的硫燃烧， 产生大量二氧化硫严重污染环境。
发明内容
本发明针对以上不足之处， 提供一种煤与矸石分离并将矸石回填的技术装备， 本方法及 设备可实现煤与矸石的分离， 并将矸石回填采空区， 避免了将煤与矸石混采运至井上， 节约 了成本， 保护了环境。
为达到上述目的， 本发明的采用以下技术手段：
一种煤与矸石分离并将矸石回填的技术， 其特征在于包括以下步骤：
A、 利用采煤机割装上层煤层并利用刮板输送机、 转载机、 皮带机将煤输送到井上；
B、 利用采煤机割装中间矸石层并利用刮板输送机反向运转将矸石输送至铺设在刮板 输送机另一端的矸石回运转载机上， 矸石回运转载机将矸石回运至液压支架后部的朝向采空 区的中部槽中板开口的抛矸刮板输送机上；
c、 顺序调节抛矸刮板输送机中板开口大小， 将矸石均匀的抛入采空区；
D、 利用采煤机割装下层煤层并利用刮板输送机、 转载机、 皮带机将煤输送到井上。
一种煤与矸石分离并将矸石回填的成套装备，包括采煤机，采煤机的下方设有可正反转、 与采煤机为行走配套设备的刮板输送机，所述刮板输送机的正向运输端与其配套设有转载机、 反向运输端与其配套设有朝向采空区的矸石回运输送机组。
上述的成套装备， 所述的矸石回运输送机组包括矸石回运转载机以及与其配合的中部槽 中板开口的抛矸刮板输送机。
上述的成套装备， 所述抛矸刮板输送机悬挂于液压支架后部； 所述抛矸刮板运输机中板 开口大小可调； 所述抛矸刮板输送机设有液压千斤顶； 所述的转载机位于运输顺槽处； 矸石 回运转载机位于回风巷处； 所述刮板输送机与抛矸刮板输送机平行。
为以示区别、 消除歧义， 特将本申请中的输送设备做以下说明- "刮板输送机"是指与采煤机配合可正反转运转的可用于输送煤或矸石的输送机；
"转载机"是指与刮板输送机正转的输送端对应并将煤向上运输的转载机；
"矸石回运转载机"是指与刮板输送机反转的输送端对应并将矸石向抛矸刮板输送机运输的 转载机；
"抛矸刮板输送机"是指与矸石回运转载机配合并将矸石抛向采空区的输送机。
本发明的工作原理及有益效果表现在：
采上层煤时， 工作面前部刮板输送机正向运转， 采煤机滚筒旋转进行割煤、 装煤至刮板输送 机， 刮板输送机将煤卸到运输顺槽的转载机上， 然后通过运输巷的皮带运输机将煤运送到井 上。
上层煤采完后， 到达中间的矸石层， 因本发明在刮板输送机的另一端也就是反向运输端 增设了输送物料方向朝向采空区的矸石回运转载机， 在采煤机割完上层煤层后， 改变刮板输 送机的输送方向， 使得刮板输送机反向运转， 采煤机幵采矸石， 矸石落入刮板输送机， 刮板 输送机反向运转， 将矸石卸到回运矸石转载机上， 回运矸石转载机将矸石卸在悬挂在液压支 架后部的抛矸刮板输送机上， 后部刮板输送机的每节中部槽的中板均开有可调节开口大小的 漏矸口， 矸石通过中部槽的漏矸口均匀的抛洒在釆空区。 实现将煤与矸石分离开采， 并且解 决了矸石回填问题， 节约了大量成本。
中间夹矸采完后， 工作面前部刮板输送机正向运转， 采煤机割下层煤， 采煤机滚筒旋转 进行割煤、 装煤至前部刮板输送机， 前部刮板输送机将煤卸到运输顺槽的转载机上， 然后通 过运输巷的皮带运输机将煤运送到井上，最终完成一个循环。
工作面运输系统的输送机与转载机合理布置， 占地面积小， 结构紧凑， 便于工作面操作 人员通行和设备维修。
由此可见， 本发明能够在不向上运输矸石的情况下解决煤层夹有矸石的情况， 可将煤层 与矸石进行分离， 并将矸石作为采空区的回填材料； 避免了将矸石同煤时运出井下的耗能， 以及矸石在井上占地和对环境造成的污染。
附图说明
图 1为本发明创造结构示意图
图中： 1、 工作面前部刮板输送机； 2、 顺槽运煤转载机； 3、 矸石回运转载机； 4、 抛矸刮板 输送机； 5、 采煤机； 6、 液压支架。
具体实施方式
下述相关技术内容均为本发明技术。
一种煤与矸石分离回填成套设备， 如图 1所示： 包括采煤机 5， 采煤机 5下方设有可正、 反转旋转的工作面前部刮板输送机 1， 所述工作面前部刮板输送机 1与采煤机 5配合并承载 采煤机割物。
所述工作面前部刮板输送机 1 的正向旋转输送端与其配合设有顺槽运煤转载机 2, 顺槽 运煤转载机 2设于运输顺槽并与可伸缩皮带机配套。
工作面前部刮板输送机 1 的反向运输端与其配合设有矸石回运转载机 3 ; 所述矸石回运 转载机 3设于回风巷， 其输送物料方向朝向采空区并悬挂在液压支架后部。
与矸石回运转载机 3配合设有抛矸刮板输送机 4; 所述的抛矸刮板输送机 4悬挂于液压 支架 6后部并且中部槽的中部板幵口大小可以调节； 所述抛矸刮板输送机 4利用中部槽中板 开口将矸石抛入采空区， 通过液压千斤顶顺序调节中板开口大小均匀的将矸石抛入采空区。
为保证结构紧凑， 所述的矸石回运转载机 3采用短结构， 工作面前部输送机 1与抛矸刮 板输送机 4平行。
使用时：
利用采煤机 5割装上层煤层， 工作面前部刮板输送机 1正向运转， 利用工作面前部刮板输送 机 1、 顺槽运煤转载机 2、 皮带机将煤输送到井上；
利用采煤机 5割装中间矸石层、 利用工作面前部刮板输送机 1反向运转， 将矸石输送至矸石 回运转载机 3上， 矸石回运转载机 3将矸石运至朝向采空区的抛矸刮板输送机 4上； 顺序调节抛矸刮板输送机 4中板开口大小， 将矸石均匀的抛入采空区； 利用采煤机 5割装下层煤层， 工作面前部刮板输送机 1正向运转， 利用工作面前部刮板输送 机 1、 转载机、 皮带机将煤输送到井上。

Claims

权利要求
1. 一种煤与矸石分离并将矸石回填的技术， 其特征在于包括以下步骤：
A、 利用采煤机割装上层煤层并利用刮板输送机、 转载机、 皮带机将煤输送到井上；
B、 利用采煤机割装中间矸石层并利用刮板输送机反向运转将矸石输送至铺设在刮板输送机 另一端的矸石回运转载机上， 矸石回运转载机将矸石回运至液压支架后部的朝向采空区的中 部槽中板开口的抛矸刮板输送机上；
C、 顺序调节抛矸刮板输送机中板开口大小， 将矸石均匀的抛入采空区；
D、 利用采煤机割装下层煤层并利用刮板输送机、 转载机、 皮带机将煤输送到井上。
2. 一种煤与矸石分离并将矸石回填的成套装备， 包括采煤机， 其特征在于， 采煤机的下方设 有可正反转、 与采煤机为行走配套设备的刮板输送机， 所述刮板输送机的正向运输端与其配 套设有转载机、 反向运输端与其配套设有朝向采空区的矸石回运输送机组。
3. 根据权利要求 2所述的成套装备， 其特征在于： 所述的矸石回运输送机组包括矸石回运转 载机以及与其配合的中部槽中板开口的抛矸刮板输送机。
4. 根据权利要求 3所述的成套装备，其特征在于：所述抛矸刮板输送机悬挂于液压支架后部。
5. 根据权利要求 3或 4所述的成套设备， 其特征在于： 所述抛矸刮板运输机中板开口大小可 调。
6. 根据权利要求 5所述的成套装备， 其特征在于： 所述抛矸刮板输送机设有液压千斤顶。
7.根据权利要求 2所述的成套装备， 其特征在于： 所述的转载机位于运输顺槽处。
8. 根据权利要求 2所述的成套装备， 其特征在于： 矸石回运转载机位于回风巷处。
9. 根据权利要求 2所述的成套装备， 其特征在于： 所述刮板输送机与抛矸刮板输送机平行。
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