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基于离散元法的辊压机中细粒物料压块过程建模

Modelling of the Fine-Grained Materials Briquetting Process in a Roller Press with the Discrete Element Method.

作者信息

Bembenek Michał, Buczak Magdalena, Baiul Kostiantyn

机构信息

Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, 30-059 Kraków, Poland.

Technological Equipment & Control System Department, Z.I. Nekrasov Iron and Steel Institute, National Academy of Sciences of Ukraine, 49050 Dnipro, Ukraine.

出版信息

Materials (Basel). 2022 Jul 14;15(14):4901. doi: 10.3390/ma15144901.

DOI:10.3390/ma15144901
PMID:35888372
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9317880/
Abstract

By using the Altair EDEM™ software, which implements the discrete element method, modelling and further study of the processes occurring in the roller press's deformation area were carried out. It was shown that the discrete element method makes it possible to accurately describe the phenomena occurring in the area of roller press deformation compared with the finite element method. Models of material compaction in a roller press are developed using calcium hydroxide (slaked lime) and copper ore concentrate. The developed model makes it possible to determine the process's energy parameters and the material's compaction characteristics, taking into account the characteristics of its constituent particles. It was shown that discrete element modelling could be used effectively to create roller presses that provide rational characteristics of the briquetting process, taking into account the properties of the material being briquetted and the operating modes of the equipment. The results of the studies provided the basis for the applicability of the development of the discrete element method for describing the phenomena occurring in roller presses and accelerating the design of press equipment and briquetting technological processes.

摘要

通过使用采用离散单元法的Altair EDEM™软件，对辊压机变形区域内发生的过程进行了建模和进一步研究。结果表明，与有限元法相比，离散单元法能够准确描述辊压机变形区域内发生的现象。使用氢氧化钙（熟石灰）和铜精矿建立了辊压机中物料压实的模型。所建立的模型能够考虑其组成颗粒的特性来确定该过程的能量参数和物料的压实特性。结果表明，考虑到被压块物料的特性和设备的运行模式，离散单元建模可有效地用于创建具有合理压块过程特性的辊压机。这些研究结果为离散单元法在描述辊压机中发生的现象以及加速压机设备和压块工艺流程设计方面的开发应用提供了依据。

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