基于双相泡的goaf堵塞泄漏的可行性实验研究
Laisheng Huang1, Bing Wu2, Haiwei Cai1
1School of Emergency Management and Safety Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China.
The Science of the total environment
|July 15, 2024
概括
双相泡有效封闭goaf (加工区域) 的空气泄漏,防止煤炭自燃 (CSC) 和相关的安全和环境风险. 这种创新的泡技术为矿山安全提供了切实可行的解决方案.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 在goaf中的空气泄漏加剧了煤炭自燃 (CSC),对采矿业务造成了重大安全和环境威胁.
- 有效地封闭goaf气流对于减轻CSC风险和确保矿山安全至关重要.
研究的目的:
- 调查使用双相泡用于密封空气泄漏的可行性.
- 评估两相泡密封技术的有效性和实用性,以防止CSC.
主要方法:
- 进行了可行性实验,使用双相泡在通风下在松散介质中进行空气泄漏密封.
- 进行了数值模拟和空气流泄漏在矿山工作面的现场测量.
- 提出并分析了两种注入方法:点钻和增量埋管.
主要成果:
- 连续泡注入完全密封的空气泄漏,承受高达600帕的风压.
- 一个2米的泡密封保持有效60分钟,有效性增加密封距离.
- 在返回气道角落后的Goaf中封闭空气流通道对于CSC预防至关重要.
结论:
- 双相泡技术是一种可行的,实用的,经济的解决方案,用于密封goaf空气流泄漏.
- 这些发现为海捕捞提供了新的见解,解决了与CSC相关的安全和环境问题.
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