WU Yongfu1a, LI Zhi1a, ZHANG Xuefeng1a,2, WANG Zhenfeng1b,3, LIU Zhongxing1b
(1a. Faculty of Energy and Environment, 1b. Faculty of Materials and Metallurgy, Inner Mongolia University of Science and Technology,Baotou 014000, China; 2. Shanxi North Hengtong Power System Co., Ltd., Datong 037000, China;3. Clean Extraction and Application of Light Rare Earth Engineering Research Center of Inner Mongolia Autonomous Region, Baotou 014010, China)
Abstract：Cyclone separator is one of the commonly used separation equipment in the process of preparing rare earth oxides by atomization roasting. In order to improve the separation efficiency of ultrafine particles in the calcinated products, Fluent numerical simulation and experimental verification were combined to obtain the optimal configuration of the cyclone separator. The particle separation efficiency and fluid pressure drop were evaluated to explore the optimization effect of the expanded structure cyclone. The results show that the separation efficiency of 1, 3 and 5 μm particles is increased by 13.25%, 42.33% and 44.02%, respectively, and the drag coefficient is reduced when cone height is 370 mm away from cyclone top plate and the Angle of expansion improvement is 10°. The cyclone separator of new improved structure can reduce energy consumption and improve the separation efficiency.
Keywords：atomized roasting; cyclone separator; ultrafine particles; numerical simulation
Get Citation：WU Y F, LI Z, ZHANG X F, et al. Optimized simulation of cyclone separator for preparation of ultrafine particles by atomization roasting[J]. China Powder Science and Technology, 2023, 29(6): 39-49.
DOI：10.13732/j.issn.1008-5548.2023.06.004
Received：2023-06-05,Revised：2023-09-12,Online：2023-09-28 11:38。
Funding Project：国家自然科学基金项目,编号:51964039; 内蒙古自治区自然科学基金项目,编号:2022LHMS05004;内蒙古自治区应用技术研究与开发资金项目,编号:2021GG0103;白云鄂博稀土资源研究与综合利用国家重点实验室开放基金资助项目,编号:2021H2275; 企业课题:稀土萃取液直接制备稀土抛光材料。
First Author：伍永福(1974—), 男, 教授,博士, 硕士生导师, 研究方向为冶金热过程绿色低碳新技术开发与应用。E-mail: wyf07@imust.edu.cn。
Corresponding Author：王振峰(1984—),男,讲师,博士,硕士生导师,研究方向为稀土绿色冶金技术开发。E-mail: wzhf2010@126.com。
CLC No：TB44; TQ051.8
Type Code：A
Serial No：1008-5548(2023)06-0039-11
