Status anaIysis and prospect of sIime separation technoIogies
FU Fucun
ZHOU Wei
YAN Qinyun
ZHU Jinbo
CHEN Yanqing
WU Chao
Abstract：The technologies characteristics of coarse and fine slime separation at home and abroad were analyzed. Meanwhile,the optimum operation condition of each technology was investigated. The working mechanism and status of main equipments were indicated. The dense medium hydro-cyclone,spiral separator,water medium cyclone group and teetered bed separator were widely used in coarse slime separation. The fast-developing dense medium hydro-cyclone effectively reduced lower limit of separation. The key separation instrument of fine slime separation was flotation machine,the flotation column had better separation effects for fine slime. The slime separation process included four parts which were primary flotation of slime,one stage recovery of fine clean coal,flotation concentrate preparation,grade flota-tion of slime. The raw coal separation technologies optimization and process combination could improve separation efficiency of coarse slime. Considering feed coal size,flotation setup and concentration pressure filtration process,the flotation equipments improvement and process optimization were more beneficial to fine slime separation.
Keywords：fine slimecoarse slimeflotation separatorcoal water slurry preprocessor
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( 28-31 )