基于Euler-Euler模型的煤颗粒干燥过程数值模拟研究  

Numerical Simulation of Coal Particle Drying Process Based on Euler-Euler Model

作　　者：邢曦文 浑宝炬 成董浩[3] XING Xiwen;HUN Baoju;CHENG Donghao(College of Mining Engineering,North China University of Science and Technology,Tangshan 063210,China;Hebei Key Laboratory of Mining Development and Safety Technology,Tangshan 063210,China;Port of Caofeidian Group Co.,Ltd.,Tangshan 063210,China)

机构地区：[1]华北理工大学矿业工程学院,河北唐山063210 [2]河北省矿业开发与安全技术重点实验室,河北唐山063210 [3]曹妃甸港集团有限公司,河北唐山063210

出　　处：《煤炭技术》2022年第3期223-227,共5页Coal Technology

基　　金：河北省教育厅科研资助项目(ZD20131063);唐山市科技局项目(18130206A)。

摘　　要：为了提高煤泥干燥工业效率,降低系统产尘和煤尘灾害事故的发生,优化运行参数和干燥设备结构,为后续除尘设备提供选型依据。运用流体力学理论基础和流体仿真ANSYS Fluent软件相结合的方法,对滚筒干燥机内不同颗粒粒度的干燥效果进行了模拟。结果表明,颗粒粒度越小,其干燥速率越快,易过度干燥,在系统中停留,造成较大产尘。在文中粒度范围内,颗粒粒度越大,可以同时保证系统煤尘安全和干燥效率。In order to improve the industrial efficiency of coal slime drying, reduce the occurrence of dust production and coal dust disasters, optimize the operating parameters and the structure of drying equipment, and provide a basis for the selection of subsequent dust removal equipment. The drying effects of different particle sizes in the drum dryer were simulated by the method of fluid mechanics theory and fluid simulation software Fluent of ANSYS. Results the smaller the particle size of the surface, the faster the drying rate, easy to over-dry, stay in the system, resulting in greater dust production. Within the range of particle size, the larger the particle size is, the safety and drying effect of coal dust can be ensured simultaneously.

关 键 词：煤泥干燥 滚筒干燥机 数值模拟 

分 类 号：TD984[矿业工程—选矿]