Solids circulation behaviour in a circulating fluidized bed with a concentric annular feeding mechanism

2021 ◽  
Author(s):  
Guanghuai Zhang ◽  
Zhiwei Chen ◽  
Jie Bao ◽  
Weisheng Wei ◽  
Xiaotao Bi
Keyword(s):  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Feeding Mechanism

Modeling of Solid Fuel Combustion in Furnaces with a Circulating Fluidized Bed

2008 ◽  
Vol 39 (1) ◽  
pp. 65-78
Author(s):  
Yu. S. Teplitskii ◽  
V. A. Borodulya ◽  
V. I. Kovenskii ◽  
E. P. Nogotov
Keyword(s):  
Fluidized Bed ◽  
Solid Fuel ◽  
Circulating Fluidized Bed ◽  
Fuel Combustion ◽  
Solid Fuel Combustion

scholarly journals The Analysis of Influence of the Gangue in the Coal as Fired on the Coal Conveying System and the Boiler Operation of the Circulating Fluidized Bed Unit

2019 ◽  
Vol 118 ◽  
pp. 02011
Author(s):  
Su Pan ◽  
Yu Pengfeng ◽  
Linbo Liu ◽  
Han Jing ◽  
Xiao Shen
Keyword(s):  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Storage Conditions ◽  
Coal Gangue ◽  
Quality Data ◽  
Stable Operation ◽  
Coal Quality ◽  
Boiler Operation ◽  
Conveying System

The coal as fired, with unidentified characteristics of the coal gangue, was burned on a 300MW circulating fluidized bed unit. The equipment of the coal conveying system was damaged and the boiler operation was unstable. In response to the problems, the coal quality data and storage conditions of the coal were examined and the site was spot-checked to evaluate the coal quality characteristics. At the same time, the typical representative parameters of the coal handling system and boiler operation were selected. According to the analysis of coal quality and coal storage, the coal quality fluctuates greatly and the uniformity of particle size distribution is poor. There is actually the coal gangue with hard texture and hard to grind in the coal pile. The coal gangue will have adverse effects on the fine screening machine, fine crusher and other equipment. After burned this type of coal, the fluidized quality of the boiler bed is degraded to make an impact on the safe and stable operation of the boiler. It is recommended that the coal should be screened and then burned into the furnace to ensure safe and stable operation of the boiler.

Influence of stoichiometry air ratio on char characteristics and nitrogen conversion in circulating fluidized bed with post-combustion

Fuel ◽  
2021 ◽  
Vol 298 ◽  
pp. 120842
Author(s):  
Yuan Xiao ◽  
Guoliang Song ◽  
Xueting Yang ◽  
Zengcai Ji ◽  
Chao Wang ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Nitrogen Conversion

scholarly journals Investigation of biomass alkali release in a dual circulating fluidized bed chemical looping combustion system

Fuel ◽  
2021 ◽  
Vol 297 ◽  
pp. 120743
Author(s):  
Ivan Gogolev ◽  
Toni Pikkarainen ◽  
Juho Kauppinen ◽  
Carl Linderholm ◽  
Britt-Marie Steenari ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Chemical Looping Combustion ◽  
Chemical Looping ◽  
Combustion System
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