磨砂喷水器的数值建模,以优化岩石切割参数
Satar Mahdevari1, Habibollah Sayehvand2, Pedram Bakhtiari Haftlang2
1Department of Mining Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran. satar.mahdevari@aut.ac.ir.
Scientific reports
|April 30, 2025
概括
确定了用于高压磨砂喷水 (AWJ) 岩石切割的最佳参数. 增加喷射速度和停留时间,以及3%的磨料度和1.25毫米颗粒大小,增强切割深度和体积.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 制造过程 制造过程 制造过程
背景情况:
- 在各种行业中,岩石切割效率至关重要.
- 高压磨砂喷水 (AWJ) 切割为岩石挖掘提供了一种精确的方法.
- 优化AWJ参数是提高岩石切割质量和效率的关键.
研究的目的:
- 为了确定高压磨砂喷水 (AWJ) 岩石切割的最佳参数.
- 为了研究喷射速度,停留时间,磨料度和颗粒大小对切割性能的影响.
- 通过对砂石和大理石的实验数据验证数值模拟.
主要方法:
- 在LS-DYNA中使用结合的有限元素方法-平滑粒子水力学 (FEM-SPH) 的数值模拟.
- 在砂石和大理石岩石样本上的实验验证.
- 系统地调查参数:喷射速度,停留时间,磨料体积度和磨料颗粒直径.
主要成果:
- 增加的喷射速度和停留时间与更高的切割深度 (CD) 和切割体积 (CV) 有正相关.
- 磨损剂体积度高达3%显著改善了CD和CV;较高度显示回报减少.
- 磨砂颗粒直径高达1.25毫米的增强CD和CV,在此尺寸之外没有进一步的改进.
结论:
- 对于研究的岩石,最佳的磨料体积度为3%.
- 最佳的磨料颗粒直径为1.25毫米,以最大限度地提高切割质量.
- 建议包括增加喷射速度和停留时间,以及最佳的磨料参数,以提高岩石切割.
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