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以黄铁矿和方解石组成的岩石颗粒为研究对象,利用离散元方法建立简单二相矿物平面模型,为更好地表现微波照射下微裂纹的萌生和发展规律,模型采用平行黏结模型,考虑了影响微波照射效果的主要因素:功率密度、照射时长、矿物颗粒大小及形状,分析了在微波照射下吸波矿物晶体边界破坏过程及破坏规律。
Taking the rock particles composed of pyrite and calcite as the research objects, a simple two-phase mineral planar model was established by using the discrete element method. In order to better reflect the germination and development of microcracks under microwave irradiation, the parallel bonding model was adopted, The main factors influencing the microwave irradiation effect are power density, irradiation duration, size and shape of mineral particles, and the damage process and damage of crystal boundary of microwave absorbing minerals are analyzed.