scholarly journals Degree of reduction as the genetic property of coal. A new concept for evaluation of coal quality.

1986 ◽  
Vol 65 (5) ◽  
pp. 302-314
Author(s):  
Yoshiaki MIURA
Keyword(s):  
Coal Quality ◽  
Degree Of Reduction ◽  
Genetic Property

Model of oil collector with changeable degree of reduction

2018 ◽  
pp. 34-39
Author(s):  
Ju.V. Khalilova ◽  
◽  
V.V. Kozlov ◽  
V.M. Spasibov ◽  
◽  
...  
Keyword(s):  
Degree Of Reduction

Update: World Coal Quality Inventory -- Argentina

2004 ◽  
Author(s):  
William E. Brooks ◽  
Jason C. Willett
Keyword(s):  
Coal Quality

Chemical analyses in the World Coal Quality Inventory

2010 ◽  
Author(s):  
Susan J. Tewalt ◽  
Harvey E. Belkin ◽  
John R. SanFilipo ◽  
Matthew D. Merrill ◽  
Curtis A. Palmer ◽  
...  
Keyword(s):  
Chemical Analyses ◽  
Coal Quality ◽  
The World

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.

Effects of coal quality on utility furnace performance

Fuel ◽  
1988 ◽  
Vol 67 (1) ◽  
pp. 27-35 ◽  
Author(s):  
J.D. Smith ◽  
T.T. Spence ◽  
P.J. Smith ◽  
A.U. Blackham ◽  
L.D. Smoot
Keyword(s):  
Coal Quality ◽  
Furnace Performance
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