摘要
为达到一种新型重油加工工艺中低密度颗粒高效分离的要求,根据离心分离和重力沉降分离的原理,设计了一种新型阵列旋转喷射分布器,通过阵列射流,在喷雾造粒的同时,形成旋转流场,将低密度的固体颗粒与气相溶剂高效分离。建立了一套新型喷雾造粒分离塔实验装置,并优化了产生阵列射流的分布器的结构和位置,详细研究了不同条件下装置的分离性能。研究结果表明,具有环形阵列排布的新型分布器结构,能够产生可控制的旋转流场,对于密度为0.1～0.3g·cm-3的细小颗粒具有很好的分离效果,其分离效率可以达到95%,最高可达99%。
In order to obtain high separation efficiency for lower-density particles in new heavy oil processing,a new type of arraying and revolving distributor was designed according to the principle of centrifugal separation and gravitational sedimentation.A revolving flow field formed in the process of spraying prilling with the arraying jet flow.Lower-density particles were separated from the gaseous solvent.One set of experimental equipment was set up.Separation characteristics were studied with different structures and installing heights of the distributor.The new distributor with annular arraying distribution characteristic produces revolving flow field and presents better separation effect of exiguous particles.Its separation efficiency reaches 95%—99%.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2011年第2期393-398,共6页
CIESC Journal
基金
国家重点基础研究发展计划项目(2010CB226902)~~
关键词
喷雾射流
颗粒分离
造粒塔
阵列
旋转
spraying jet flow
particle separation
granulating tower
arraying
revolving
