揉碎机揉碎机理分析及锤片结构优化

发布时间：2018-04-19 05:16

本文选题：揉碎工艺 + 流场　；参考：《农业工程学报》2016年S2期

【摘要】：为了提高揉碎机性能,实现物料的高能效揉碎。该文首先分别从喂入、切碎、揉搓3方面深入阐述了锤片本身结构及其激励下揉碎机内流场变化对高效揉碎的影响机制。通过在理论上丰富锤片结构参数对揉碎性能影响,提出锤片倾角作为新的结构参数,及倾角锤片设计原理。运用计算流体力学方法分别讨论了无倾角与倾角8°的锤片激励下内流场变化规律,对锤片倾角与高效能揉碎之间相关性加以验证。结果表明,具有倾角锤片可以通过对气流场调节实现高能效揉碎,仿真结果与验证实验结果误差不超过7%。该研究为揉碎机锤片参数优化提供了新思路,为实现高效揉碎提供了理论依据。
[Abstract]:In order to improve the performance of crusher, achieve high energy efficiency crushing materials.In this paper, the structure of hammer itself and the influence mechanism of the flow field of the crusher under excitation on the high efficiency crusher are discussed from the aspects of feeding, shredding and kneading respectively.By enriching the influence of the structural parameters of the hammer on the crushing performance in theory, the inclination angle of the hammer is proposed as a new structural parameter, and the design principle of the inclined hammer is also presented.Using computational fluid dynamics (CFD) method, the variation of internal flow field under the excitation of a hammer with no inclination angle and 8 掳inclination angle is discussed, and the correlation between the inclination angle of the hammer and the high efficiency crusher is verified.The results show that the hammer with obliquity can achieve high energy efficiency by adjusting the airflow field, and the error between the simulation results and the experimental results is less than 7.The research provides a new idea for parameter optimization of crusher hammers and a theoretical basis for the realization of high efficiency crusher.
【作者单位】：内蒙古农业大学机电工程学院;
【基金】：国家自然科学基金项目(51665047) 内蒙古自治区自然科学基金资助(2016BS0516)
【分类号】：S817.12

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