锤片式粉碎机翼形筛片的设计与试验研究

发布时间：2018-04-11 05:11

本文选题：锤片式粉碎机 + 翼形筛片粉碎室　；参考：《内蒙古农业大学》2015年硕士论文

【摘要】：粉碎是工农业生产中不可缺少的重要环节,其中锤片式粉碎机是生产加工中的重要设备。本文对目前粉碎机在粉碎过程中存在“物料—空气环流层”,造成生产率较低、能耗较大的情况,从理论上进行了推导说明。并且设计出了8种由翼形弧、圆弧组成的筛片进行实验,经过数据分析得出翼形筛片比环形平筛在度电产量方面均有所提高。也从理论上推导出了翼形筛片在有效破坏“物料—空气环流层”的同时可增大升力、并增大了物料对筛片的冲击角。通过翼形筛片粉碎室物料在粉碎过程中可避免过粉碎现象,增大了细小物料的出筛率。对于改善粉碎机性能有诸多益处。本文还从几组翼形筛片中选取了一组综合效果较优的筛片参数作为优选方案,为今后进一步研究翼形筛片粉碎室的粉碎机理提供理论依据。
[Abstract]:Grinding is an indispensable link in industrial and agricultural production, among which hammer mill is an important equipment in production and processing.In this paper, the existence of the "material-air circulation layer" in the grinding process of the pulverizer, which results in low productivity and large energy consumption, is theoretically deduced and explained in this paper.And eight kinds of sieve which are composed of airfoil arc and circular arc are designed and tested. Through the data analysis, it is found that the airfoil sieve is higher than the annular flat screen in the power output.It is also deduced theoretically that the airfoil can effectively destroy the "material-air circulation layer" and increase the lift force and the impact angle of the material to the sieve blade.In the process of comminuting, the overcrushing phenomenon can be avoided and the sieve rate of fine material can be increased.For improving the performance of the mill has many benefits.From several groups of airfoil sieve pieces, a group of optimal sieve parameters are selected as the optimal selection scheme, which provides a theoretical basis for the further study of the comminuting mechanism of the wing sieve plate comminution chamber in the future.
【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S817.122

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