流态化冷却器设计优化及换热研究  

Design Optimization and Heat Transfer Study of Fluidization Cooler

作　　者：曹万秋[1] CAO Wan-qiu

机构地区：[1]沈阳铝镁设计研究院有限公司

出　　处：《有色设备》2019年第3期48-50,共3页Nonferrous Metallurgical Equipment

摘　　要：流态化冷却器是氧化铝生产过程中至关重要的设备,流态化冷却器的作用是将焙烧生成的高温氧化铝由250℃冷却到80℃,冷却效果的好坏直接影响后续工序中皮带的使用寿命和氧化铝包装运输。现场实际运行中也有各种各样的问题存在,如换热效果不好、换热管束磨损、系统漏风等问题。本文针对现场的主要问题提出了解决办法,同时从理论上针对流态化冷却器的初始流化风速、换热系数进行了研究。Fluidization cooler is an important equipment in the process of alumina production.The cooler is to cool the alumina which was produced by roaster from 250 degrees to 80 degrees Celsius.The cooling effect is good or bad,which directly affects the life of the belt and the packaging and transportation of alumina.There are also various problems in the actual operation,such as poor heat exchange effect,wear of the heat exchange tube bundle,and system leakage.In this paper,the solution to the main problems in the field is proposed,and the initial fluidization wind speed and heat transfer coefficient of the convection cooler are studied.

关 键 词：氧化铝 流态化冷却器 风速 换热 

分 类 号：TF821[冶金工程—有色金属冶金]