Fluidized bed ash cooler used in a circulating fluidized bed boiler: An experimental study and application

被引：8
|
作者：
Zhang Man [1 ]
Bie Rushan [1 ]
Xue Qinggui [2 ]
机构：
[1] Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150006, Peoples R China
[2] Harbin Dahe Power Engn Co Ltd, Harbin, Peoples R China
来源：
POWDER TECHNOLOGY | 2010年 / 201卷 / 02期
关键词：
Circulating fluidized bed ash cooler; Fluidizing air flow; Conveying of ash flow; Fluidizing air pressure;
D O I：
10.1016/j.powtec.2010.03.004
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The performance of a fluidized bed ash cooler was studied using a cold experiment bench. The air flow rate, particle size of the solids and air distributor type are considered to be the key parameters of the operation of a fluidized bed ash cooler (FBAC). It was found that the amount of fluidizing air directly affects the conveying of ash and that they have a quadratic relationship. An acceptable particle size distribution for the solids is d(50)<450 mu m. Furthermore, the experiment reveals that the height of the weir in the FBAC does not affect the conveying of the ash flow. The influence of injected air on the transportation of ash is not significant. Optimal air nozzle dimensions are presented. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：114 / 122
页数：9
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