[1]陆勇,赵长遂,姚伟文,等.凹型布风板流化床气、固动力特性试验—扬析[J].东南大学学报(自然科学版),1986,16(3):65-75.[doi:10.3969/j.issn.1001-0505.1986.03.007]
 Lu Yong,Zhao Changsui,Yao Weiwen,et al.Gas-Solid Kinetic Characteristics in Fluidized Bed with a Concave Distributor-Elutriation[J].Journal of Southeast University (Natural Science Edition),1986,16(3):65-75.[doi:10.3969/j.issn.1001-0505.1986.03.007]
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凹型布风板流化床气、固动力特性试验—扬析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
16
期数:
1986年第3期
页码:
65-75
栏目:
本刊信息
出版日期:
1986-05-20

文章信息/Info

Title:
Gas-Solid Kinetic Characteristics in Fluidized Bed with a Concave Distributor-Elutriation
作者:
陆勇赵长遂姚伟文范从振
南京工学院热能工程研究所
Author(s):
Lu Yong Zhao Changsui Yao Weiwen Fan Congzhen
Research Institute of Thermal energy Engineering
关键词:
流化床 动力特性试验 扬析常数 扬析速率常数 宽筛分 布风板 燃烧效率 双组分 细颗粒 床层
分类号:
+
DOI:
10.3969/j.issn.1001-0505.1986.03.007
摘要:
本文介绍了在0.2×0.5×2.64m沸腾床模拟台上气——固动力特性的冷态试验,包括颗粒在床层中的运动规律、颗粒的扬析及床内气流动力场。所用物料有玻璃珠、溢流渣和石英砂。分别就双组分和宽筛分床料作出了各种单因素对扬析速率常数的关联曲线和幂函数表达式;利用回归分析建立了各因子的综合无因次关联式,揭示了颗粒扬析的基本机理及沸腾床内的一般规律。利用凹型布风装置,改变了床层气固动力结构,实现了改善颗粒燃烬度、提高燃烧效率的预期设想。
Abstract:
This paper summaries the results about experimental investigation of gas solid kinetic characteristics at ambient temperature in fluidized bed with 0.2×0.5×2.64m, including the movement pattern of particles in the bed, fine elutriation and air kinetic characteristics. The materials used in present experiments are glass beads, overflow slag and silica sand. A group of relative functions of single variable are respectively set up for materials with two components and wide range size distribution. Dimensionless correlations are developed by means of regression result. The basic mechanism of fines elutriation and general regularity on FBB are proposed. With a concave distributor, the gas-solid kinetic characteristics in the bed are changed and the residence time of fines is increased.

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更新日期/Last Update: 2013-05-01