变径炭素回转窑内物料平均停留时间的计算变径炭素回转窑内物料平均停留时间的计算.pdfVIP

　第 60 卷 　第 3 期 　 　化 　工 　学 　报 　　　 　　　　Vol60 　No3 　 2009 年 3 月 　 　CIESC 　J ournal 　 　　March 　2009 研究简报 变径炭素回转窑内物料平均停留时间的计算 王春华 , 陈文仲 , 陈海耿 , 左春友 (东北大学材料与冶金学院 , 辽宁 沈阳 110004) 关键词 : 炭素回转窑 ; 窑尾扩径 ; 翻料装置 ; 物料停留时间 中图分类号 : TF 062 　　　　　　文献标识码 : A 文章编号 : 0438 - 1157 (2009) 03 - 0574 - 06 Calculatio n of mean re sidence time of solid s in variable diamet er car bon rot ary kiln WAN G Chunhua , C H EN Wenzhong , C H EN Haigeng , ZU O Chunyou ( Col leg e of M ate ri als an d M et al l u rgy , N ort heas te rn Uni ve rs i ty , S heny ang 110004 , L i aoni ng , Chi na) A b st ract : Ba sed on t he axial bed dep t h mo del of st raight rot ary kiln p rop o sed by p rior re searcher s , t he equation of mean re sidence time of solid s in car bon rot ary kiln wit h variable diamet er an d t ur ndow n rig wa s develop ed Col d exp eriment s were carried out on a laboratory rot ary kiln under ambient con ditio n s The co mp ari son bet ween calculat ed re sult s and exp eriment dat a showed t hat calculat ed re sult s of t he re sidence time of solids agreed well wit h mea surement s and t he p rediction er ror varied in a small range of - 15 % — + 12 %No fit tin g p aramet er wa s nece ssary The ma ss flow rat e of solids increa sed and t he mean re sidence time decrea sed wit h increa sin g kiln rot ation sp eed and kiln slop e The ma ss flow rat e of solids increa sed and t he mean re sidence time might po ssibly decrea se or increa se wit h increa sin g dam height at t he feed en d . Key wor ds : car bon rot ary