介尺度视角下干法重介流态化分选过程强化

doi:10.11949/0438-1157.20220072

化工学报 ›› 2022, Vol. 73 ›› Issue (6): 2452-2467.DOI: 10.11949/0438-1157.20220072

介尺度视角下干法重介流态化分选过程强化

周晨阳^1,²(),贾颖¹,赵跃民¹,张勇³,付芝杰⁴,冯昱清⁵,段晨龙¹()

^1.中国矿业大学化工学院，煤炭加工与高效洁净利用教育部重点实验室，江苏徐州 221116
^2.加拿大西安大略大学颗粒技术研究中心，加拿大安大略省伦敦 N6A 5B9
^3.中国科学院过程工程研究所多相复杂系统国家重点实验室，北京 100190
^4.加拿大英属哥伦比亚大学生物与化学工程系，加拿大不列颠哥伦比亚省温哥华 V6T 1Z3
^5.澳大利亚联邦科学与工业研究组织，澳大利亚墨尔本 VIC3168

收稿日期:2022-01-03 修回日期:2022-03-02 出版日期:2022-06-05 发布日期:2022-06-30
通讯作者: 段晨龙
作者简介:周晨阳(1992—)，男，博士，博士后，zhoucy@cumt.edu.cn
基金资助:
国家杰出青年科学基金项目(52125403);国家自然科学基金重大研究计划培育项目(91434133)

Intensification of dry dense medium fluidization separation process from a mesoscale perspective

Chenyang ZHOU^1,²(),Ying JIA¹,Yuemin ZHAO¹,Yong ZHANG³,Zhijie FU⁴,Yuqing FENG⁵,Chenlong DUAN¹()

^1.Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, Department of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
^2.Particle Technology Research Center, The University of Western Ontario, London N6A 5B9, Ontario, Canada
^3.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
^4.Department of Biological and Chemical Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
^5.CSIRO, Melbourne VIC 3168, Australia

Received:2022-01-03 Revised:2022-03-02 Online:2022-06-05 Published:2022-06-30
Contact: Chenlong DUAN

摘要/Abstract

摘要：

煤炭在保障我国能源安全中具有重要作用。干法重介流态化分选是煤炭分选加工领域的重要组成部分，有助于推动我国煤炭资源的高效洁净利用。流态化分选密度的稳定调控是实现高效分选的必要条件，调控的核心是如何削弱气泡扰动作用，关键是理解流态化分选过程中介尺度结构的演变及调控机制。从介尺度视角分析了气固流态化干法分选调控过程的关键科学问题，梳理了单元干法分选设备以及系统放大过程中介尺度结构的研究进展，分析了介尺度结构的演变规律，提出了介尺度结构的精准调控策略，对干法流态化的工业推广应用及煤炭的分选提质具有重要意义。

关键词: 介尺度, 流态化, 选煤, 过程强化

Abstract:

Coal plays an important role in providing the basic energy security. Dry heavy-medium fluidized separation is an important part of coal separation and processing, which helps to promote the efficient and clean utilization of coal resources in China. Reliable separation is mainly based on the accurate density control in the separation process. And the core of density control is related to weakening the bubble evolution in the bed. It is comparably important to understand the tendency of bubble evolution and the principle of bubble dispersal. The research proposed the key scientific problems in dry fluidization separation process from mesoscale perspective. Furthermore, the research progress has been collected on the evolution of mesoscale structure on the view of lab system and scale-up of dry fluidization separation system. The mentioned research provided the detailed explanations on evolution of mesoscale structure. Meanwhile, the relevant methods have been put forward on the accurate regulation of mesoscale structure. It is also of great significance to the sorting and quality improvement of coal.

Key words: mesoscale, fluidization, coal beneficiation, process intensification

中图分类号:

TD 94

周晨阳, 贾颖, 赵跃民, 张勇, 付芝杰, 冯昱清, 段晨龙. 介尺度视角下干法重介流态化分选过程强化[J]. 化工学报, 2022, 73(6): 2452-2467.

Chenyang ZHOU, Ying JIA, Yuemin ZHAO, Yong ZHANG, Zhijie FU, Yuqing FENG, Chenlong DUAN. Intensification of dry dense medium fluidization separation process from a mesoscale perspective[J]. CIESC Journal, 2022, 73(6): 2452-2467.

图/表 8

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介尺度视角下干法重介流态化分选过程强化

Intensification of dry dense medium fluidization separation process from a mesoscale perspective

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