离散元法在混合机上的应用研究现状及发展趋势

Research status and development trend of discrete element method application in the mixer

传统的混合机设计依赖前人的经验,缺乏相关的理论指导,达不到预期的混合效果。为此,介绍了优化设计混合机的新技术离散单元法。离散单元法被广泛应用于模拟研究不同类型混合机内颗粒运动规律和混合机理,已成为混合机参数优化与结构设计的有效方法,但颗粒混合过程非常复杂,混合机制仍需深入研究。文章重点阐述了离散元法应用在容器回转型混合机、容器固定型混合机和复合型混合机上的研究进展,并对未来发展进行了展望。

Traditional design of mixers depends on experience of the predecessors, hacks in relevant theoretical guidance, can not reach prospective mixing performance. Therefore, this paper introduces new technology called discrete element method of the mixers optimization design. Discrete element method is widely applied to simulation of particles motion law and mixing mechanism in various types of mixers, has become effective method of parameter optimization and structure design of mixers, but parcicle mixing is highly complex process, mixing mechanism still needs thorough study. This paper summarizes research progress of discrete element method application in vessel rotation mixers, vessel fixation mixers and compound mixers, and future development is prospected.