锰钢衬板的磨损演变及其对实验室规模圆锥破碎机破碎特性的影响:数值研究

IF 4.2 2区 工程技术 Q2 ENGINEERING, CHEMICAL Advanced Powder Technology Pub Date : 2024-08-09 DOI:10.1016/j.apt.2024.104614
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引用次数: 0

摘要

了解圆锥破碎机锰钢衬板和凹衬板之间的相对运动所引起的磨损演变,有助于深入了解磨损和破碎机理,从而帮助工业企业优化运行参数,降低生产成本。本研究采用离散元法(DEM)和 Archard 模型分析了锰钵衬板的磨损形成和演变,研究了不同磨损条件下运行参数对磨损深度和破碎性能的影响。同时,采用响应面法(RSM)最大程度地减少了锰钵衬板的磨损,改善了圆锥破碎机的破碎特性。结果表明,磨损深度的演变趋势与压紧力一致,磨损区域的扩展与锰钵衬板的旋转方向一致。运行参数(偏心转速除外)引起的破碎腔容积变化以及不同元颗粒尺寸引起的破碎腔容积比变化会显著导致不同的磨损深度。随着磨损深度的增加,吞吐量、破碎率和功率消耗都会降低。此外,小硬元颗粒的存在会导致更严重的磨损。
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Wear evolution of the mantle liner and its effect on the crushing characteristics of a lab-scale cone crusher: A numerical study

Understanding the evolution of wear caused by the relative motion between the mantle liner and the concave liner in a cone crusher provides useful insights into the wear and crushing mechanism, which helps industries optimize operating parameters to reduce production costs. This work analyzed wear formation and evolution on the mantle liner using the discrete element method (DEM) with Archard models, in which the effects of operating parameters on wear depth and crushing performance under different wear conditions were investigated. Meanwhile, the response surface method (RSM) was employed to minimize the wear of the mantle liner and improve the crushing characteristics of the cone crusher. Results show that the evolution trend of the wear depth accords with the compressive force, and the extension of the wear area is consistent with the rotating direction of the mantle liner. Changes in the crushing chamber volume caused by operating parameters (except for the eccentric speed) and in the crushing chamber volume ratio caused by different meta-particle sizes can significantly cause different wear depths. And with the increase of the wear depth, the throughput, crushing rate, and power draw all decrease. Additionally, the presence of small-hard meta-particles leads to more severe wear.

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来源期刊
Advanced Powder Technology
Advanced Powder Technology 工程技术-工程:化工
CiteScore
9.50
自引率
7.70%
发文量
424
审稿时长
55 days
期刊介绍: The aim of Advanced Powder Technology is to meet the demand for an international journal that integrates all aspects of science and technology research on powder and particulate materials. The journal fulfills this purpose by publishing original research papers, rapid communications, reviews, and translated articles by prominent researchers worldwide. The editorial work of Advanced Powder Technology, which was founded as the International Journal of the Society of Powder Technology, Japan, is now shared by distinguished board members, who operate in a unique framework designed to respond to the increasing global demand for articles on not only powder and particles, but also on various materials produced from them. Advanced Powder Technology covers various areas, but a discussion of powder and particles is required in articles. Topics include: Production of powder and particulate materials in gases and liquids(nanoparticles, fine ceramics, pharmaceuticals, novel functional materials, etc.); Aerosol and colloidal processing; Powder and particle characterization; Dynamics and phenomena; Calculation and simulation (CFD, DEM, Monte Carlo method, population balance, etc.); Measurement and control of powder processes; Particle modification; Comminution; Powder handling and operations (storage, transport, granulation, separation, fluidization, etc.)
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