COMBUSTION CHARACTERISTICS OF A 2-STAGE SWIRL-FLOW FLUIDIZED-BED COMBUSTOR

被引：11

作者：

LEE, JK ^{[1
]}

HU, CG ^{[1
]}

SHIN, YS ^{[1
]}

CHUN, HS ^{[1
]}

机构：

[1] UNIV KOREA,DEPT CHEM ENGN,SEOUL 136701,SOUTH KOREA

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1990年 / 68卷 / 05期

关键词：

anthracite combustion; combustion efficiency; fluidized bed combustion; swirl flow; two‐stage combustor;

D O I：

10.1002/cjce.5450680513

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In order to investigate the combustion characteristics of a two‐stage swirl‐flow fluidized bed combustor, combustion experiments of low‐grade anthracite coal were performed. Experimental parameters were the fluidizing air velocity, coal feed rates, bed temperature, stoichiometric air ratio, swirl nozzle diameter and rotational diameter. The experimental results showed that, due to the swirl flow, the elutriation rates of fines were lower than those of the single‐stage fluidized bed combustor. The combustible contents of the ash in the outflow streams were also reduced. Therefore, the combustion efficiency of the two‐stage swirl‐flow fluidized bed combustor was 20% greater than that of the single‐stage fluidized bed combustor under the same operating conditions. Copyright © 1990 Canadian Society for Chemical Engineering

引用

页码：824 / 830

页数：7

共 14 条

[1]

Beer J, 1972, APPL SCI PUBL LOND, P100

[2]

BODEN BG, 1985, 8TH P INT C FBC, P605

[3]

CHEN TP, 1978, FLUIDIZATION, P151

[4]

DELONG MM, 1987, 9TH P INT C FBC ASME, P132

[5]

GONG JH, 1988, P ASIAN C FLUIDIZED, P253

[6]

GUPTA AK, 1984, SWIRL FLOWS, P1

[7] AN EXPERIMENTAL-STUDY FOR LOW-NOX FLUIDIZED-BED COAL COMBUSTOR DEVELOPMENT .1. COMBUSTION UNDER SUBSTOICHIOMETRIC CONDITIONS [J].

HIRAMA, T ;

TOMITA, M ;

ADACHI, T ;

YAMAGUCHI, H ;

HORIO, M .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1980, 14 (08) :955-960

[8]

HIRAMA T, 1983, 4TH P INT C FLUID, P467

[9]

HORIO M, 1985, 8TH P INT C FBC, P130

[10]

IKEDA S, 1983, 4TH P INT C FLUID NY, P499

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