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煤矸石是煤炭开采、加工过程中产生的一种固体废弃物,严重影响自然环境。但是经过微波活化后的煤矸石却可以成为良好的水泥辅助性胶凝材料。微波活化煤矸石是一个比较复杂的过程,受多重因素影响。为能有效活化煤矸石,提高煤矸石的利用率,使其能更好的变废为宝,利用有限元软件ANSYS建立对应的计算机仿真模型,研究其微波辐照时间对煤矸石活化效率影响的有效模型,并通过实验进行实证研究,从而为修改和完善微波活化煤矸石的活化过程及性能控制模式。构建微波活化煤矸石的活化模型提供一定的参考依据。研究结果证明,煤矸石粉末在微波炉中的微波辐照时间对煤矸石粉末的微波活化效果有着很大的影响,并且在经过微波辐照(15-20)min后,煤矸石粉末就已经具有不错的活性,可以成为较佳的水泥辅助性胶凝材料。这不仅能为进一步研究煤矸石的微波活化过程提供一定的理论参考,而且从根本上降低了试验时间和研究成本。
Coal gangue is a type of solid waste generated during coal mining and processing, which seriously affects the natural environment. However, activated coal gangue after microwave can become a good cement-assisted cementitious material. Microwave activation of coal gangue is a more complex process, affected by multiple factors. In order to effectively activate coal gangue and improve the utilization rate of coal gangue so as to make it better turning waste into treasure, the corresponding computer simulation model was established by using finite element software ANSYS to study the influence of microwave irradiation time on the activation efficiency of coal gangue Effective model, and through empirical empirical research, so as to modify and improve the microwave activation of gangue activation process and performance control mode. It provides some references for constructing activation model of microwave activated coal gangue. The results show that the microwave irradiation time of coal gangue powder in microwave oven has a great influence on the microwave activation effect of coal gangue powder, and gangue powder already has good after microwave irradiation (15-20) min Activity, can become a better cement-assisted cementitious material. This not only provides some theoretical reference for further research on the microwave activation process of coal gangue, but also fundamentally reduces the test time and the research cost.