Study of thermo-mechanical effects of microwave irradiation for excavation and processing of rocks

岩石开挖加工微波辐射热力效应研究

• 批准号: 534083-2018
• 负责人: Hassani, Faramarz
• 金额: $ 8.18万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=692981
• 关键词: Study; thermo; mechanical; effects; microwave

Excavation and processing of mineral bearing hard rocks presents technological challenges to mining industry. So far, miners have excavated such deposits using drilling and blasting method which is extremely time consuming and discontinuous. Even more challenging is the processing of such ores due to the high energy and wear intensity of the comminution equipment. The research proposed here aims at developing a new mining technique for excavation and mineral processing of hard rock deposits. This new technology is based on creating cracks within rock and ore by means of microwave induced heat. This microwave-assisted preconditioning method will reduce energy and wear in continuous mining machines and mineral processing equipment. The extensive experimental, analytical and numerical studies proposed in this research work will establish the engineering knowledge and tools required for building the next generation of continuous mining machines. Eventually, this research will help Canadian mining sector with lowering its operating costs, reducing its environmental footprint, improving its productivity and competitiveness.

含矿硬岩的开采和加工对采矿业提出了技术挑战。到目前为止，矿工们都是用钻爆法来挖掘这类矿床，这种方法非常耗时且不连续。更具挑战性的是这类矿石的加工，因为粉碎设备的能量和磨损强度很高。本研究旨在为坚硬岩矿的开采和选矿开发一种新的采矿技术。这项新技术的基础是通过微波感应加热在岩石和矿石中产生裂隙。这种微波辅助的预处理方法将减少连续采矿机械和选矿设备的能量和磨损。这项研究工作中提出的广泛的实验、分析和数值研究将建立建造下一代连续采矿机所需的工程知识和工具。最终，这项研究将有助于加拿大矿业降低运营成本，减少环境足迹，提高生产率和竞争力。