基于离散元法的搅拌球磨机磨矿分析与研究

发布时间：2018-05-09 00:24

本文选题：转速 + 填充量　；参考：《昆明理工大学》2016年硕士论文

【摘要】：由于超细粉体原料具备出众的优异性能,在高新技术产业中的应用越来越重要,例如时下3D金属打印的原材料便是超细金属粉体。因此当下各国对超细粉体原料的加工生产都非常关注。现阶段超细粉体的制备主要采用机械破碎法,主要利用球磨机对原材料进行破破碎加工。但是球磨机设备在生产加工粉体材料过程中耗能高,出粉率低,已经成为行业发展的掣肘。在超细粉体材料传统生产加工中需要进行大量的试验进行球磨机工艺参数的选择确定,此过程耗时长,效率低,经济成本高。为了解决上述问题,本文在对离散系统求解理论与球磨机理相关理论学习的基础上,以HCX-2L卧式搅拌球磨机为研究载体做了如下研究,主要内容包括：(1)针对搅拌轴转速变化对该机研磨性能的影响进行了详细的讨论；(2)针对研磨介质填充量对该机研磨性能的影响进行了详细的讨论；(3)针对搅拌叶片结构尺寸变化对该机研磨性能的影响进行了详细的讨论；(4)在客观条件允许下,针对搅拌轴转速与研磨介质填充量对该机研磨性能的影响进行了球磨试验。本文经过研究得出HCX-2L卧式搅拌球磨机研磨工作时最优的搅拌轴转速与研磨介质填充量,以及最优的叶片结构尺寸参数,并通过具体试验进一步验证了上述结论。本文在完成研究HCX-2L卧式搅拌球磨机工艺参数选择以及叶片结构对其研磨性能的影响基础上,为今后球磨机的设计以及针对具体型号球磨机工艺参数如何选择提供了一种研究方法。
[Abstract]:Because of the excellent performance of ultrafine powder, the application of ultrafine powder in high-tech industry is more and more important. For example, the raw material of 3D metal printing is superfine metal powder. Therefore, the current countries are very concerned about the processing and production of ultra-fine powder raw materials. At present, the preparation of ultrafine powder is mainly made by mechanical crushing, mainly by ball mill. However, the ball mill equipment in the production of powder materials in the process of high energy consumption, low pulverization rate, has become a handicap of the development of the industry. In the traditional production and processing of ultrafine powder material, a large number of tests are needed to determine the parameters of ball mill. The process takes long time, low efficiency and high economic cost. In order to solve the above problems, on the basis of studying the theory of discrete system solving and the theory of ball mill, this paper takes HCX-2L horizontal agitating ball mill as the research carrier and does the following research. The main contents include: (1) discuss in detail the influence of rotating speed change of stirring shaft on the lapping performance of this machine. (2) discuss in detail the effect of filling amount of grinding medium on the lapping performance of this machine; and discuss the agitation blade junction in detail. The influence of the structure size change on the grinding performance of the machine is discussed in detail. The ball milling test was carried out in view of the effects of rotating speed of agitating shaft and filling amount of grinding medium on the grinding performance of the machine. In this paper, the optimal rotating speed of agitating shaft, the filling quantity of grinding medium and the optimum parameters of blade structure dimension are obtained by studying the HCX-2L horizontal agitating ball mill. The above conclusions are further verified by concrete tests. In this paper, the selection of process parameters of HCX-2L horizontal agitating ball mill and the influence of blade structure on its grinding performance are studied. It provides a research method for the design of ball mill in the future and how to select the technological parameters of specific type ball mill.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TQ051.9

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