[Poster Presentation]回转滚筒中偏态分布颗粒混合物的流动偏析研究

Organized By

Hohai University

Monash University

Co-organized by

Southeast University

Jiangxi University of Science and Technology

Northeast University

DUT-BSU Scientific Research and Innovation Center

Suzhou University of Science and Technology

State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment

Sponsoring agency

KELI SDEM Software (Dalian) Co., Ltd.

Sugon Smart Computing Information Technology Co., Ltd.

Beijing Paratera Technology Co., Ltd.

Simpop Information Technology Co., Ltd.

Important Dates

Conference Announcement

December 2023, release First Round Announcement
Abstract Submission Deadline
March 31^th, 2024
Paper Submission Deadline
April 30^th, 2024
Registration
From January 1^st, 2024
Conference Schedule
May 31^st (Friday), 2024 On-Site Registration
June 1^st to 3^rd, 2024 Conference

回转滚筒中偏态分布颗粒混合物的流动偏析研究

ID：81 Submission ID：62 View Protection：ATTENDEE Updated Time：2024-04-09 22:37:58 Hits：372 Poster Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

Session：[No Session] » [No Session Block]

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Abstract

工业颗粒混合物本质上是多分散的，考虑到矿物加工过程中粒度分布特征的变化，有必要进一步深入研究多分散偏态分布颗粒混合物的流动偏析过程。在相同分布宽度的基础上，本工作定义具有不同偏态分布特征的多分散颗粒混合物，并通过离散元法模拟了回转滚筒中的流动偏析行为。结果表明，在多分散颗粒系统中，大颗粒和小颗粒总是沿轴向分布在两侧和中间位置，而中等颗粒则基本均匀地分布在滚筒中。此外，当颗粒混合物从细颗粒体系转变为粗颗粒体系，多分散颗粒混合物偏度系数越小，稳态阶段中颗粒偏析程度也随之降低。进一步，无论是滚筒长径比还是滚筒填充率增加，初始阶段颗粒偏析速度和稳态阶段偏析程度随之显著降低，而具有均匀分布特征的中等颗粒尺寸基本保持不变。

Keywords

多分散颗粒,偏态分布特征,粒度偏析,回转滚筒

Speaker

缪秋华

东南大学；蒙纳士大学

Submission Author

缪秋华东南大学；蒙纳士大学

黄鹏东南大学

Sponsored By

Hohai University

Panel of Computational Mechanics on Granular Materials, Working Party of Computational Mechanics, Chinese Society of Theoretical and Applied Mechanics

Jiangsu Society of Theoretical and Applied Mechanics