滚筒式冷渣器灰渣运动实验与模拟  

Experimental and Simulation Study of the Ash and Slag Movement in a Roller Type Slag Cooler

作　　者：庄宇 陈汉平[2] 王贤华[2] 张世红[2] 

机构地区：[1]上海电气电站集团工程公司,上海201199 [2]华中科技大学煤燃烧国家重点实验室,湖北武汉430074

出　　处：《热能动力工程》2012年第2期218-221,266-267,共4页Journal of Engineering for Thermal Energy and Power

基　　金：国家"十一五"科技支撑计划基金资助项目(2006BAA03B05-03;2006BAA03B02-09);国家自然科学基金资助项目(51021065)

摘　　要：通过灰渣在滚筒冷渣器内的运动实验,建立了滚筒内灰渣的轴向运动模型,研究了滚筒转速、倾斜角、填充度和滚筒直径等参数对灰渣平均停留时间的影响。结果表明:滚落状态下灰渣在滚筒内停留时间约为滑移状态的1.5倍,灰渣间混合良好;在其它条件不变的情况下,随转速和倾斜角、直径的增大或填充度的减小,灰渣在滚筒内的停留时间减小;转速越大灰渣间混合越强,填充度越大混合越弱。Through a movement test of slag inside a roller slag cooler,established was an axial movement model inside the roller and studied was the influence of the rotating speed,inclination angle,filling-up degree and diameter of the roller on the mean residence time of the slag.It has been found that in the rolling-down state,the residence time of the slag in the roller is about 1.5 times of that in the sliding movement state and the ash and slag are well mixed.Under the condition that other conditions are kept unchanged,the residence time of the ash and slag in the roller will be shortened with an increase of the rotating speed,inclination angle and diameter or a decrease of the filling-up degree.The higher the rotating speed,the ash and slag are mixed better.The higher the filling-up degree,the ash and slag are mixed worse.

关 键 词：滚筒式冷渣器 倾斜角 填充度 转速 平均停留时间 

分 类 号：TK223[动力工程及工程热物理—动力机械及工程]