基于破碎分维数的振动破碎评价试验研究

现代矿业 ›› 2022, Vol. 38 ›› Issue (09): 115-.

基于破碎分维数的振动破碎评价试验研究

申俊¹ 蔡改贫² 匡枝俏¹

1. 湖南机电职业技术学院机械工程学院；2. 江西理工大学机电工程学院

出版日期:2022-09-26 发布日期:2023-05-30
基金资助:
*国家自然科学基金项目(编号：51464017)；湖南省教育厅科学研究项目（编号：21C1136）。

Experimental Study on Vibration Crushing Evaluation Based on Fractal Dimension of Crushing

SHEN Jun¹ CAI Gaipin² KUANG Zhiqiao¹

1. Mechanical Engineering College，Hunan Mechanical & Electronical Vocational College；2. Faculty of Mechanical and Electrical Engineering，Jiangxi University of Science and Technology

Online:2022-09-26 Published:2023-05-30

摘要/Abstract

摘要： 为了有效评价矿石破碎设备的性能，让破碎设备更加高效节能地运行，针对矿石破碎后的颗粒粒径分布特性，对3 种不同的矿石进行振动破碎，进行了破碎后颗粒的粒级分布、破碎分维数计算及其他破碎效果评价指标等研究。研究表明：破碎后颗粒的粒级分布具有明显的分形特性，可以用破碎分维数来描述颗粒的分布状态，并且破碎分维数与其他破碎评价指标的变化趋势基本一致；对4 组破碎试验数据拟合后的二次系数绝对值进行对比，得到系数绝对值大小差值在10%以内；得出破碎分维数可以作为破碎评价指标之一。

关键词: 破碎评价指标, 破碎分维数, 振动破碎

Abstract: In order to effectively evaluate the performance of ore crushing equipment and make crushing equipment run more efficiently and energy-efficiently，according to the particle size distribution characteristics of ore after crushing，three different ore were crushed by vibration，and the particle size dis⁃ tribution，crushing fractal dimension calculation and other crushing effect evaluation indexes were studied. The results show that the particle size distribution after crushing has obvious fractal characteristics，and the fractal dimension of crushing can be used to describe the distribution state of particles，and the fractal dimension of crushing is basically consistent with the change trend of other crushing evaluation indexes. The absolute values of the quadratic coefficients after fitting the four sets of crushing test data are com⁃ pared，and the difference between the absolute values of the coefficients is within 10%. The crushing frac⁃ tal dimension can be used as one of the crushing evaluation indexes.

Key words: crushing evaluation indicator, crushing fractal dimension, vibration crushing

申俊, 蔡改贫, 匡枝俏. 基于破碎分维数的振动破碎评价试验研究[J]. 现代矿业, 2022, 38(09): 115-.

SHEN Jun, CAI Gaipin, KUANG Zhiqiao. Experimental Study on Vibration Crushing Evaluation Based on Fractal Dimension of Crushing[J]. Modern Mining, 2022, 38(09): 115-.

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