摘要
针对呼吸性粉尘连续分离问题,对陶析式、惯性冲击式、旋风式分离方法进行了分析,利用流体力学软件Fluent对虚拟冲击器内部流场进行数值模拟,建立了满足BMRC曲线分离标准的虚拟冲击器模型,并结合数值模拟结果对分离器结构尺寸进行修正优化。按照模型加工了分离器样件并进行了气溶胶实验验证,结果表明样件的分离效能与BMRC曲线标准差均小于5%,满足行业标准要求。
In view of the continuous separation problem of respirable dust, the separation methods of ceramic, inertial impact and whirlwind were analyzed. The fluid dynamics software Fluent was used to conduct numerical simulation of the flow field inside the virtual impactor, the virtual impactor model meeting the BMRC curve separation standard was established, and the structure size of the separator was modified and optimized combined with the numerical simulation results.According to the model, the separator sample was processed and verified by aerosol experiment. The results show that the separation efficiency standard deviation between the sample and the BMRC curve is less than 5%, meeting the requirements of the industry standard.
作者
李彦筑
王杰
谢双
LI Yanzhu;WANG Jie;XIE Shuang(CCTEG Chongqing Research Institute,Chongqing 400037,China;College of Safety Engineering,Chongqing Institute of Science&Technology,Chongqing 401331,China)
出处
《矿业安全与环保》
北大核心
2022年第3期20-25,共6页
Mining Safety & Environmental Protection
基金
国家重点研发计划项目(2017YFC0805200)。
