[Oral Presentation]烧结过程中颗粒混合与制粒性能数值模拟研究

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

烧结过程中颗粒混合与制粒性能数值模拟研究

ID：167 Submission ID：259 View Protection：ATTENDEE Updated Time：2024-04-10 17:24:22 Hits：636 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

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

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Abstract

混合料制粒是铁矿石烧结工序中一个重要环节，制粒后生球团的结构及其颗粒分布决定了热烧结阶段的床层透气性和火焰速率，进而影响烧结矿的质量。本研究通过离散单元法模拟烧结制粒过程中不同种类和性质原料颗粒的混合制粒行为，探究颗粒性质、滚筒结构设计与操作参数对颗粒流动、混合与制粒性能的影响，并分析制粒过程中颗粒粘附长大的宏观及微观动力学机理。初步结果表明：滚筒内颗粒处于滚动流态时，粒径、密度大的颗粒分布在床层外围，粒径、密度较小的颗粒聚集在床层内部。注水混合后，各组分颗粒表面水分分布趋于均匀，表面粘附有焦炭和熔剂的铁矿石核心颗粒逐步偏析于料层外侧。随着水分含量的增加，颗粒长大成球效果增强，但当水分含量超过8%时，颗粒成球效果变化不显著。

Keywords

铁矿石烧结，混合制粒，离散单元法，颗粒长大

Speaker

王悦磊

学生 江西理工大学

Submission Author

王悦磊江西理工大学

徐进江西理工大学

周宗彦江西理工大学

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