三筒回转式烘干机筒体连接方式研究  

Study on the drum connection modes of three-cylinder rotary drying machine

作　　者：杨晓红[1] 刘平成[1] 

机构地区：[1]盐城工学院机械工程学院,江苏盐城224051

出　　处：《化工矿物与加工》2015年第12期28-31,共4页Industrial Minerals & Processing

基　　金：江苏高校"生态建材与环保装备协同创新中心"暨江苏省新型环保重点实验室联合开放课题基金资助(基金号:AE201428);2012年度江苏省散装水泥科研项目计划资助

摘　　要：在工业上回转烘干机广泛应用于颗粒物料的烘干,其中三筒回转式烘干机更具优越性及广阔的市场前景,但其筒体连接方式存在以下问题:三层筒体之间的加固连接方式不适应热胀冷缩工作状态,造成连接失效;无烟气导向装置导致系统阻力大,甚至积灰阻塞等。本文对相关结构进行了传热学分析、刚度变化分析、流体运动分析,并从工程应用角度推荐了中筒与内外筒之间的具体加固连接方法,提出了三层筒体轴向相对尺寸的确定原则及相互之间的平滑连接方式。本研究结果将为大幅提高三筒回转式烘干机运行的可靠性和降低运行消耗提供技术支撑。Rotary drying machines are widely used for drying par- ticle materials in industry, in which three-cylinder rotary dryers have the superiority and broad market prospect, but the following problems still exist in the conventional drum connection modes： Strengthening connections between three-cylinder do not adapt the working status of expanding with heat and contracting with cold, causing connection failure; Smoke-free air guides result in the large system resistance, and even dust blocked, etc. This pa- per has carried on heat transfer analysis, stiffness variation analy- sis, fluid motion analysis to the correlation structure; Mean- while, the article also recommends the specific methods of strengthening connections between the middle tube and internal and external tube, from the point of engineering application. Fi- nally, the principles that determine the axial relative size of three cylinders and smooth connections between each other are respec- tively presented. The research findings will provide the technical support for substantial increase in operation reliability and reduc- tion in operation consumption for three-cylinder rotary dryers.

关 键 词：烘干机 三筒 连接方式 

分 类 号：TD926[矿业工程—选矿]