基于煤层地质条件的最佳爆破参数优化和碎片化控制的研究
Zhouquan Liao1, Xiaohua Ding2, Mingzhi Liang3
1School of Mines, China University of Mining and Technology, Xuzhou, 221116, China.
Scientific reports
|April 10, 2025
概括
优化开放式煤矿爆炸方案可显著减少碎煤,增加有价值的块煤. 这项研究提高了效率,并通过改进喷气参数来降低生产停机时间.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 岩石爆炸技术的技术.
- 数字模拟 数字模拟
背景情况:
- 穿孔爆炸是开放式煤矿开采的主要成本之一.
- 块煤价格高于粉碎煤,因此减少罚款至关重要.
- 开发适合不同地质条件的有效爆破方案是关键的研究领域.
研究的目的:
- 为了优化开放式煤矿爆炸计划.
- 为了减少粉碎煤的比例,增加一次性煤炭产量.
- 提高整体采矿效率,减少运营停机时间.
主要方法:
- 使用LS-DYNA软件与流体-固体合算法进行数值模拟.
- 分析参数,包括电荷结构,爆炸物类型,中间介质和孔间距.
- 实地测试以验证优化的喷气方案.
主要成果:
- 确定了一个使用特定电荷和孔间距离的低密度爆炸物的优化方案.
- 罚款率下降了5.93% (从30.10%降至24.17%).
- 断层煤的比例增加了9.08% (从59.33%增加到68.41%),而大型断层煤则减少了3.15%.
结论:
- 优化的喷气方案有效地减少了罚款和大块,提高了煤炭质量.
- 这项研究提供了理论指导和实际支持,用于在软煤层中进行爆炸.
- 这些发现表明,开采采矿具有重要的工程价值和广泛的应用前景.
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