ZGM型中速磨煤机分离器挡板开度优化研究  

Optimization Study on Separator Baffle Opening of ZGM Medium Speed Mill

作　　者：吕太[1] 丁帅[1] 程超[1] 

机构地区：[1]东北电力大学

出　　处：《电站系统工程》2016年第4期21-24,共4页Power System Engineering

摘　　要：中速磨分离器挡板是调节煤粉细度的敏感元件,挡板开度大小对磨机效率、阻力和锅炉效率均有较大影响,针对某厂ZGM113G型中速磨在运行中存在的问题,利用CFD模拟软件对该磨机的分离器进行研究,模拟不同挡板开度下分离器内部气体流场变化和颗粒运动轨,分析不同粒径煤粉颗粒在不同挡板开度下的分离效率和进出口的压差变化情况。计算出分离器挡板的最佳开度区间,并得到实际运行的验证。Medium speed mill separator baffles are sensitive elements to regulate the fineness of coal, baffle opening have a great impact on mill efficiency, resistance and boiler efficiency, Aiming at solving the problems of Zgm113 g mill encountered in actual operation,CFD simulation software is used to model the separator of this type＇s mill, internal flow state of the separator and internal particle motion trajectory on different baffle opening is simulated. By analyzing coal powder escaping rate of different particle size and pressure difference between inlet and outlet of the separator at different baffle opening, it is proved that the setting of the baffle opening is most reasonable in 40-45 degrees.

关 键 词：粗粉分离器 挡板开度 数值模拟 

分 类 号：TJ223.25[兵器科学与技术—武器系统与运用工程]