Open AccessStudy on Preparation and Stability of Coal Water Slurry
Author(s) -
Yanmin Zhang
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1237/4/042077
Subject(s) - slurry , coal , coal water , mixing (physics) , grinding , environmental science , materials science , particle size , coal slurry , waste management , pulp and paper industry , chemical engineering , environmental engineering , metallurgy , engineering , physics , quantum mechanics
The preparation of coal water slurry (CWS) as a new substitute for oil and the factors affecting the stability of CWS were studied in this paper. Dry method was used to prepare CWS. Dry coal water slurry refers to the preparation of CWS by grinding coal into powder, then adding water and additives, mixing and stirring. Preparation process is simple and convenient, and has low technical requirements. There are many factors affecting the stability of CWS. In this paper, the coal-water ratio, mixing time and coal particle size are selected to study, and the effects of various variables on the stability of CWS in a certain range are determined. The final experimental results show that the CWS prepared by mixing for 15 minutes with 65% water, 34% coal and 1% additive is the most stable.