InfIuence of uItra-fine Shenfu coaI fines on viscosity and stabiIity of coaI water sIurry
QU Jianlin
SONG Chengjian
ZHOU Anning
GONG Ming
YU Wei
Abstract：In order to improve Shenfu coal water slurry(CWS)concentration and overcome the preparation problems due to the bad coal properties such as low ash and sulfur content,high internal water,the ultra-fine Shenfu coal fines was added to the CWS according to the particle gradation theory. The optimum proportion of different particle size and ratio of two additives were optimized via dry CWS prepara-tion process. The influence of different size ultra-fine Shenfu coal fines on viscosity and stability of CWS was researched. The results showed that,when the mass ratio of TJJ1 and TJJ2 was 4 ︰ 1,the dispersity of CWS was the best,When the mass ratio of W125 ~ 200 and Wd50 =12μm and Wd50 =6. 5μm was 40 ︰ 60 ︰ 40,the concentration of CWS was about 70% ,the viscosity was below 1200 mPa·s,the stability was B which met the industrial requirements.
Keywords：Shenfu coalultral-fine coal finescoal water slurryupgrading
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 65-68 )