CN101871355B - Four post support shield type large mining height mesh-placement hydraulic support - Google Patents
Four post support shield type large mining height mesh-placement hydraulic support Download PDFInfo
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- CN101871355B CN101871355B CN 201010201965 CN201010201965A CN101871355B CN 101871355 B CN101871355 B CN 101871355B CN 201010201965 CN201010201965 CN 201010201965 CN 201010201965 A CN201010201965 A CN 201010201965A CN 101871355 B CN101871355 B CN 101871355B
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Abstract
本发明公开了一种四柱支撑掩护式大采高铺网液压支架，包括底座、顶梁、掩护梁，顶梁与底座之间设有两根立柱，该支架的支护高度大于或等于3.8m，该支架的后部设有铺网机构。铺网机构包括铰接于掩护梁后端的尾梁和设于底座后部的至少一个网卷，掩护梁与尾梁之间设有尾梁千斤顶，尾梁内设有插板及插板千斤顶。将大采高技术与铺网技术有机结合，使后部铺网空间加大。既可以可满足产量要求，提高开采效率，又能提高煤炭回收率。
The invention discloses a four-column support shield type large mining height net laying hydraulic support, which includes a base, a top beam, and a cover beam. Two columns are arranged between the top beam and the base. The support height of the support is greater than or equal to 3.8m , the rear of the bracket is provided with a laying mechanism. The net laying mechanism includes a tail beam hinged at the rear end of the shield beam and at least one net coil arranged at the rear of the base, a tail beam jack is arranged between the shield beam and the tail beam, and a board and a board jack are arranged inside the tail beam. Combining large-scale mining technology with net laying technology, the rear net laying space is enlarged. It can not only meet the output requirement, improve the mining efficiency, but also improve the coal recovery rate.
Description
技术领域 technical field
本发明涉及一种液压支架，尤其涉及一种四柱支撑掩护式大采高铺网液压支架。The invention relates to a hydraulic support, in particular to a four-column support shield type hydraulic support for laying nets with a large mining height.
背景技术 Background technique
液压支架是煤炭开采中的必备支护装置，铺网开采和放顶煤开采是现有技术中的两种常用的开采工艺。The hydraulic support is an essential support device in coal mining, and net-laying mining and top-coal caving mining are two commonly used mining processes in the prior art.
现有技术中由于放顶煤开采工效高、开采成本低，应用广泛。但放顶煤回收率低、煤层易燃。In the prior art, due to the high work efficiency and low mining cost of top-coal caving mining, it is widely used. But the recovery rate of caving coal is low, and the coal seam is flammable.
而铺网开采工效低、成本高，所以不及放顶煤推广范围大，但对煤炭的回收率较高。现有技术中的铺网支架一般高度3.5米，使用高度约3～3.3米。However, net-laying mining has low work efficiency and high cost, so it is not as popular as top-coal caving, but the recovery rate of coal is relatively high. The net laying support in the prior art generally has a height of 3.5 meters, and the use height is about 3 to 3.3 meters.
上述现有技术至少存在以下缺点：There are at least the following disadvantages in the above-mentioned prior art:
开采效率与煤炭回收率不能兼顾。Mining efficiency and coal recovery rate cannot be balanced.
发明内容 Contents of the invention
本发明的目的是提供一种开采效率高、煤炭回收率高的四柱支撑掩护式大采高铺网液压支架。The object of the present invention is to provide a four-column support shield type large mining height net laying hydraulic support with high mining efficiency and high coal recovery rate.
本发明的目的是通过以下技术方案实现的：The purpose of the present invention is achieved through the following technical solutions:
本发明的四柱支撑掩护式大采高铺网液压支架，包括底座、顶梁、掩护梁，顶梁与底座之间设有两根立柱，该支架的支护高度大于或等于3.8m，该支架的后部设有铺网机构。The four-column supporting cover type large mining height network laying hydraulic support of the present invention includes a base, a top beam, and a cover beam. Two columns are arranged between the top beam and the base. The supporting height of the support is greater than or equal to 3.8m. There is a net laying mechanism at the rear.
由上述本发明提供的技术方案可以看出，本发明所述的四柱支撑掩护式大采高铺网液压支架，由于该支架的支护高度大于或等于3.8m，该支架的后部设有铺网机构。将大采高技术与铺网技术有机结合，使后部铺网空间加大。既可以可满足产量要求，提高开采效率，又能提高煤炭回收率。It can be seen from the above-mentioned technical solution provided by the present invention that the four-column support shielding type large mining height laying hydraulic support according to the present invention, since the support height of the support is greater than or equal to 3.8m, the rear part of the support is provided with a laying net agency. The organic combination of large-scale mining technology and net laying technology increases the rear net laying space. It can not only meet the output requirement, improve the mining efficiency, but also improve the coal recovery rate.
附图说明 Description of drawings
图1为本发明四柱支撑掩护式大采高铺网液压支架的结构示意图。Fig. 1 is a schematic structural view of the four-column support cover type large mining height laying hydraulic support of the present invention.
具体实施方式 Detailed ways
本发明的四柱支撑掩护式大采高铺网液压支架，其较佳的具体实施方式如图1所示，包括底座1、顶梁2、掩护梁3，顶梁2与底座1之间设有4根立柱4，该支架的支护高度大于或等于3.8m，该支架的后部设有铺网机构。The preferred embodiment of the four-column supporting cover type large mining height laying hydraulic support of the present invention is shown in Figure 1, comprising a base 1, a top beam 2, and a cover beam 3, with 4 columns 4, the support height of the support is greater than or equal to 3.8m, and the rear portion of the support is provided with a net laying mechanism.
铺网机构可以包括铰接于掩护梁3后端的尾梁5和设于底座1后部的至少一个网卷6，掩护梁3与尾梁5之间设有尾梁千斤顶7，形成挡矸机构。尾梁5的上摆角度为10～15°，下摆角度为40～45°。尾梁5内还可以设有插板8及插板千斤顶9。The net-laying mechanism can include a tail beam 5 hinged at the rear end of the cover beam 3 and at least one net roll 6 arranged at the rear of the base 1, and a tail beam jack 7 is arranged between the cover beam 3 and the tail beam 5 to form a gangue retaining mechanism. The upper swing angle of the tail boom 5 is 10-15°, and the lower swing angle is 40-45°. Also can be provided with flashboard 8 and flashboard jack 9 in the tail beam 5.
底座1的中间可以装有推移装置，推移装置的前端连接有前刮板输送机。The center of base 1 can be equipped with pushing device, and the front end of pushing device is connected with front scraper conveyor.
标准规定大于3.8米属于大采高液压支架，本发明将大采高技术与铺网技术有机结合(支架高度达到7.5m)，将厚煤层进行分层开采，而不采用放顶煤开采，可以满足产量要求(如300、500 1000万吨以上)，提高了矿山经济效益；采用分层开采技术，又提高煤炭回收率。提高了工作面生产效率和资源回收率，满足安全、高效、高产的需求。The standard stipulates that the hydraulic support with a large mining height greater than 3.8 meters belongs to the large mining height technology. The present invention organically combines the large mining height technology with the network laying technology (the height of the support reaches 7.5m), and the thick coal seam is mined in layers without using top coal caving mining. Meet the output requirements (such as 300, 500 or more than 10 million tons), which improves the economic benefits of the mine; adopts layered mining technology, and improves the coal recovery rate. The production efficiency and resource recovery rate of the working face are improved to meet the needs of safety, high efficiency and high production.
本发明中，大采高后部空间较原有铺网支架，后部铺网空间更大，为后部提供更大的操作空间，易于联网。支架高度能应用在支护高度在3.8米以上、适应厚煤层开采需要、提高了工作面生产效率和资源回收率，满足安全、高效、高产的需求。In the present invention, the rear space of the large mining height is larger than that of the original net laying support, and the rear net laying space is larger, which provides a larger operating space for the rear and is easy to network. The support height can be applied when the support height is above 3.8 meters, which meets the needs of thick coal seam mining, improves the production efficiency and resource recovery rate of the working face, and meets the needs of safety, high efficiency and high production.
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010201965 CN101871355B (en) | 2010-06-10 | 2010-06-10 | Four post support shield type large mining height mesh-placement hydraulic support |
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| CN 201010201965 CN101871355B (en) | 2010-06-10 | 2010-06-10 | Four post support shield type large mining height mesh-placement hydraulic support |
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| CN101871355A CN101871355A (en) | 2010-10-27 |
| CN101871355B true CN101871355B (en) | 2013-02-13 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536292B (en) * | 2012-02-23 | 2015-07-29 | 卡特彼勒（郑州）有限公司 | Automatic coal falling type hydraulic support |
| CN107939429B (en) * | 2017-11-14 | 2019-04-19 | 山东科技大学 | A device and method for vertical automatic laying and networking of floor plates for layered mining of thick coal seams |
| CN111734479B (en) * | 2020-06-08 | 2023-01-13 | 扎赉诺尔煤业有限责任公司 | Lapping material conveying system for lapping mining working face |
| CN111734412B (en) * | 2020-06-08 | 2023-01-13 | 扎赉诺尔煤业有限责任公司 | Thick coal seam layered lapping mining working face equipment model selection matching type |
| CN113653489A (en) * | 2021-08-31 | 2021-11-16 | 中煤科工开采研究院有限公司 | Mining method and net laying mechanism for soft surrounding rock extra-thick coal seam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2128308Y (en) * | 1992-08-14 | 1993-03-17 | 煤炭科学研究总院北京开采研究所 | Caving or network laying hydraulic chock |
| CN2828314Y (en) * | 2005-08-04 | 2006-10-18 | 窑街煤电有限责任公司 | Expansion hydraulic link mechanism for hydraulic support |
| CN101463729A (en) * | 2009-01-15 | 2009-06-24 | 天地科技股份有限公司 | Hydraulic support for large-mining height caving coal |
| CN101592035A (en) * | 2009-06-25 | 2009-12-02 | 中煤北京煤矿机械有限责任公司 | Large mining height support cover type low level caving hydraulic support |
| CN201705375U (en) * | 2010-06-10 | 2011-01-12 | 中煤北京煤矿机械有限责任公司 | Four-column chock-shield large-mining-height mesh-laying hydraulic support |
-
2010
- 2010-06-10 CN CN 201010201965 patent/CN101871355B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2128308Y (en) * | 1992-08-14 | 1993-03-17 | 煤炭科学研究总院北京开采研究所 | Caving or network laying hydraulic chock |
| CN2828314Y (en) * | 2005-08-04 | 2006-10-18 | 窑街煤电有限责任公司 | Expansion hydraulic link mechanism for hydraulic support |
| CN101463729A (en) * | 2009-01-15 | 2009-06-24 | 天地科技股份有限公司 | Hydraulic support for large-mining height caving coal |
| CN101592035A (en) * | 2009-06-25 | 2009-12-02 | 中煤北京煤矿机械有限责任公司 | Large mining height support cover type low level caving hydraulic support |
| CN201705375U (en) * | 2010-06-10 | 2011-01-12 | 中煤北京煤矿机械有限责任公司 | Four-column chock-shield large-mining-height mesh-laying hydraulic support |
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