旋风分离器在褐煤干燥提质中的数值模拟  

Numerical Simulation of Cyclone Separator in Lignite Drying and Upgrading

作　　者：张峰 张亚新 訾雪 

机构地区：[1]新疆大学化学化工学院煤炭清洁转化与化工过程自治区重点实验室

出　　处：《煤炭技术》2018年第2期295-297,共3页Coal Technology

基　　金：新疆自治区自然科学基金资助项目(2016D01C035);国家自然科学基金资助项目(21366032)

摘　　要：为了提高旋风分离器在褐煤干燥提质中的工作效率,采用正交试验的方法,选择旋风分离器的入口速度、排气管外延伸长度、褐煤粒径3个参数为因素,每个因素取3个水平,选取L_9(3~4)正交表得到9组方案。运用FLUENT15.0软件对旋风分离器的流场进行数值模拟,并以褐煤最优分离效率为指标,由极差综合分析法得出入口速度是影响褐煤干燥提质的主要因素及旋风分离器的入口速度、排气管外延伸长度、褐煤粒径的最优组合。In order to improve the efficiency of the cyclone separator in the drying and upgrading otlignite, orthogonal test method was used to select three parameters,such as the inlet velocity of thecyclone separator, the extension length of the exhaust pipe and the particle size of lignite, each factor wastaken at three levels, and the L9 （34）orthogonal array was chosen to be the 9 groups. The FLUENT15.0software was used to simulate the flow field of the cyclone separator, and the optimum separationefficiency of lignite was taken as the index. By comprehensive analysis of range method of the inletvelocity is the main factor affecting the drying and upgradingscheme for the separation process, which is the inlet velocitylength of the exhaust pipe and the particle size of lignite.of the lignite and the best combinationof the cyclone separator, the extension

关 键 词：褐煤 旋风分离器 正交试验 数值模拟 

分 类 号：TQ051.8[化学工程]