薄-中厚煤层智能化综采保障技术与装备

高喜才; 马腾飞; 王琪; 刘帅; 张锡琛; 范凯; 唐建强; 胡彬

doi:10.13272/j.issn.1671-251x.2021080037

薄-中厚煤层智能化综采保障技术与装备

doi: 10.13272/j.issn.1671-251x.2021080037

高喜才^1,2,
马腾飞^1,2,
王琪^1,2,
刘帅^1,2,
张锡琛^1,2,
范凯³,
唐建强³,
胡彬⁴

1.
1. 西安科技大学能源学院, 陕西西安 710054;
2.
2. 西安科技大学西部矿井开采及灾害防治教育部重点实验室, 陕西西安 710054;
3.
3. 四川华蓥山龙滩煤电有限责任公司, 四川广安 638020;
4.
4. 四川华蓥山广能(集团)有限责任公司, 四川广安 638027

基金项目:

山东省重大科技创新工程项目（2019JZZY020326）；陕西省自然科学基础研究计划-陕煤联合基金项目（2021JLM-10）。

详细信息

作者简介:
高喜才(1980-),男,河南方城人,副教授,博士,主要研究方向为复杂煤层绿色安全开采,E-mail:gxcai07@163.com。

中图分类号: TD67
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- 被引次数: 0
出版历程
- 收稿日期: 2021-08-16
- 修回日期: 2021-11-12
- 刊出日期: 2021-11-20

Intelligent fully mechanized mining support technology and equipment for thin-medium-thick coal seam

1.
College of Energy Engineering, Xi'an University of Science and Technology, Xi'an 710054, China;
2.
Key Laboratory of Western Mine Exploitation and Hazard Prevention, Ministry of Education, Xi'an University of Science and Technology, Xi'an 710054, China;
3.
Sichuan Huayingshan Longtan Coal and Electricity Co., Ltd., Guang'an 638020, China;
4.
Sichuan Huayingshan Guangneng Group Co., Ltd., Guang'an 638027, China

摘要

摘要: 针对西南地区薄-中厚煤层厚度变化大、走向断层发育、顶板破碎等复杂地质条件，提出了薄-中厚煤层智能化综采保障技术与装备。通过对断层上下盘破碎顶板实施注浆加固、挑顶改造，以及对沿空留巷采用锚网索联合支护+超前加固+爆破切顶+立柱挂网挡矸+滞后喷浆加固+收尾砌墙的耦合支护技术，大幅提升了巷道稳定性。设计了由8架超前支架与2架端头支架组成的横向自移式超前支架组，实现了工作面端头顶板支护与超前支架快速推进的协调配合。给出了薄-中厚煤层智能化综采工作面成套装备及其优化布置方案：当工作面两端采高小于巷道高度时，采用垫架支撑采煤机机头、机尾；将刮板输送机机头、机尾超出煤壁长度控制在800 mm，保证卧底量达97 mm，以及时清理浮煤；刮板输送机机头增设平行于底板的拖架，通过过渡支架辅助推移装置直接整体推移刮板输送机机头、机尾，有效解决了采煤机摇臂与刮板输送机互相干涉难题。提出了由端部割三角煤跟机段工序和中部斜切进刀跟机段工序组成的断层带主动预防性智能割煤工艺，利用半截深、分次截割方式，提高了断层带条件下采煤机安全割煤速度。
- 煤炭开采 /
- 薄-中厚煤层 /
- 智能化综采 /
- 耦合支护 /
- 横向自移式超前支架组 /
- 综采成套装备 /
- 割煤工艺
Abstract: In the context of the complex geological conditions such as large thickness variation of thin-medium-thick coal seam, development of strike fault and broken roof in Southwest China, intelligent fully mechanized mining support technology and equipment for thin-medium-thick coal seam are proposed.Through the implementation of grouting reinforcement and roof-lifting transformation for broken roof in the hanging wall and the footwall of fault layer, as well as the adoption of the coupled support technology of bolt-mesh-anchor combined support+advance reinforcement+blasting roof cutting+pillar hanging net gangue retaining+delayed shotcrete reinforcement+finishing wall in gob-side entry retaining, the stability of the roadway is greatly improved.A lateral self-advancing advanced support group consisting of eight advanced supports and two end supports is designed to realize the coordination and cooperation of the roof support at the end of the working face and the rapid advancement of the advanced supports.The intelligent fully mechanized mining equipment for thin-medium-thick coal seam and its optimal layout scheme are proposed.When the mining height at both ends of the working face is less than the height of the roadway, a cushion frame is used to support the head and tail of the shearer.The length of the scraper conveyor head and tail beyond the coal wall is controlled at 800 mm to ensure that the undercover amount reaches 97 mm so as to clear the floating coal in time.The scraper conveyor head is equipped with a trailer parallel to the floor, and the scraper conveyor head and tail are directly pushed as a whole through the transition support auxiliary pushing device, which effectively solves the problem of mutual interference between the rocker arm of the shearer and the scraper conveyor.The study proposes an active preventive intelligent coal cutting technology in the fault zone, which is composed of end cutting triangular coal following section process and middle oblique cutting following section process.The technology uses half cutting depth and fractional cutting methods to improve the safe coal cutting speed of the shearer under the fault zone condition.
- coal mining /
- thin-medium-thick coal seam /
- intelligent fully mechanized mining /
- coupled support /
- lateral self-advancing advanced support group /
- fully mechanized mining equipment /
- coal cutting technology

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参考文献(15)

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