Scores:
12
MNiSW
120.94
ICV
 
 

COAL MICRONIZATION STUDIES IN VIBRATING MILL IN TERMS OF COAL WATER SLURRY (CWS) FUEL PREPARATION

Jolanta Robak 1  ,  
Karina Ignasiak 1  ,  
 
1
Institute for Chemical Processing of Coal, Zamkowa 1 St., 41-803 Zabrze, Poland
J. Ecol. Eng. 2017; 18(2):111–118
Publish date: 2017-03-01
KEYWORDS:
TOPICS:
ABSTRACT:
The paper presents the results of coal milling tests in aspect of slurry fuel preparation. The tests were carried out with the use of vibrating mill with working chamber of 47.5 dm3. The influence of milling time, amount and composition of grinding aids on degree of fineness and particle size distribution has been investigated. It has been found that the efficiency of the grinding process (in this type of milling device) depends primarily on the milling time and the share of grinding aids and - to a lesser extent - on their polydispersity. The study allows to conclude that the grinding time, composition and share of used grinding aids enable to control the final grain size of coal which has an impact on apparent viscosity of coal water slurry.
CORRESPONDING AUTHOR:
Michał Rejdak   
Institute for Chemical Processing of Coal, Zamkowa 1 St., 41-803 Zabrze, Poland
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