冶金渣颗粒余热回收的实验研究

doi:10.12068/j.issn.1005-3026.2014.02.021

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (2): 245-248.DOI: 10.12068/j.issn.1005-3026.2014.02.021

冶金渣颗粒余热回收的实验研究

刘军祥，于庆波，谢华清，秦勤

(东北大学材料与冶金学院，辽宁沈阳110819)

收稿日期:2013-05-22 修回日期:2013-05-22 出版日期:2014-02-15 发布日期:2013-11-22
通讯作者: 刘军祥
作者简介:刘军祥(1983-)，男，河北唐山人，东北大学博士后研究人员;于庆波(1966-)，男，山东莱阳人，东北大学教授，博士生导师.
基金资助:
国家科技支撑计划项目(2013BAA03B03)；国家自然科学基金资助项目(51304048)；中国博士后科学基金面上项目(2013M541240).

Experimental Study on Waste Heat Recovery for Metallurgical Slag Particles

LIU Junxiang， YU Qingbo， XIE Huaqing， QIN Qin

School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China.

Received:2013-05-22 Revised:2013-05-22 Online:2014-02-15 Published:2013-11-22
Contact: YU Qingbo
About author:-
Supported by:
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摘要/Abstract

摘要： 针对空气回收高温冶金渣粒余热存在的诸多问题，提出了采用自流床余热锅炉直接回收高温颗粒余热，用以生产蒸汽的技术路线.搭建了自流床余热锅炉换热实验平台，研究了换热管内水的雷诺数Re、渣粒流速和渣粒初始温度对余热锅炉换热特性的影响规律.通过实验发现:渣粒侧的换热热阻值为水侧换热热阻值的55~100倍，综合换热热阻的大小取决于渣粒侧换热热阻的大小，换热管内水的雷诺数Re对综合换热系数和热回收效率几乎没有影响；随着渣粒流速和渣粒初始温度的提高，渣粒换热系数和热回收效率均逐渐增加.

关键词: 冶金渣粒, 余热回收, 自流床余热锅炉, 换热特性

Abstract: In order to solve variuous problems in recovering waste heat from high temperature metallurgical slag particles by cold air， the technique that the waste heat of metallurgical slag particles is directly recovered by gravity bed waste heat boiler to produce steam was proposed. The experiment apparatus for gravity bed waste heat boiler was established. The influences of Reynolds number of water in heat exchange tubes， slag particle velocity and the initial temperature of slag particles on heat exchange were investigated. The results show that the heat exchange resistance of slag particles is about 55~100 times as much as that of water in tubes.The total heat exchange resistance is determined by heat exchange resistance of slag particles， and the Reynolds number of water in heat exchange tubes has little influence on total heat exchange coefficient and waste heat recovery rate. The heat exchange coefficient of slag and the waste heat recovery rate increase gradually with the increases in velocity and initial temperature of slag particles.

Key words: metallurgical slag particle, waste heat recovery, gravity bed waste heat boiler, heat exchange characteristics

中图分类号:

TF09

刘军祥，于庆波，谢华清，秦勤. 冶金渣颗粒余热回收的实验研究[J]. 东北大学学报:自然科学版, 2014, 35(2): 245-248.

LIU Junxiang， YU Qingbo， XIE Huaqing， QIN Qin. Experimental Study on Waste Heat Recovery for Metallurgical Slag Particles[J]. Journal of Northeastern University Natural Science, 2014, 35(2): 245-248.

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冶金渣颗粒余热回收的实验研究

Experimental Study on Waste Heat Recovery for Metallurgical Slag Particles

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