回转干馏炉转向及物料配比对停留时间的影响  

Effect of Rotation Direction of Rotary Reactor and Particle Ratio on Mean Residence Time

作　　者：孙保民[1] 王恭[1] 吴思竹[2] 李少华[3] 张立栋[3] 

机构地区：[1]华北电力大学电站设备状态监测与控制教育部重点实验室,北京102206 [2]北京朗新明环保科技有限公司,北京100039 [3]东北电力大学油页岩综合利用教育部工程研究中心,吉林吉林132012

出　　处：《中国电力》2012年第9期43-47,共5页Electric Power

基　　金：吉林省重大科技发展计划资助项目(20096034)

摘　　要：物料在回转干馏炉内的停留时间影响油页岩固体热载体干馏技术的干馏效果及出油率。在油页岩固体热载体干馏系统实验台上,以油页岩颗粒与页岩灰的混合物为实验物料,采用示踪粒子方法研究了冷态条件下混合物的配比、回转干馏炉(带内部翻料构件)的旋转方向2种因素对混合物停留时间的影响。结果表明,混合比例的不同会造成颗粒平均粒径的不同,平均粒径较小的混合物料停留时间长;干馏炉因翻料构件的结构特性,旋转方向不同时能形成不同的颗粒运动模式,当工作在直角抄板模式时,较大的表面层颗粒滚落距离造成了较长的物料停留时间。The mean residence time(MRT) of particles in rotary retort affects the oil shale distillation effect and yield of shale oil with distillation technology using solid heat carrier.Based on the oil shale distillation experiment system,a mixture of oil shale particles and shale ash is studied,and the impacts of particle ratio and rotation direction of rotary reactor(with upender in it) on MRT is analyzed by tracer particle method under the condition of cold experiments.The experimental results demonstrate that different particle ratios lead to different particle average sizes of the mixture and longer residence time in the reactor for the mixture with smaller particle average size.Because of the structural characteristics of upender within the reactor,different particle moving patterns are formed when the rotation direction is different.The higher tumble distance of surface layer particles contributes to longer residence time when the reactor upender works at a right angle.

关 键 词：油页岩干馏 固体热载体 停留时间 颗粒混合比例 翻料构件 

分 类 号：TE624.2[石油与天然气工程—油气加工工程]