Study on Pipeline Transport Properties of Coal Fly Ash Slurry
It is more economically feasible to transport fly ash by pipeline than by railway,road and ship.This paper mainly studies the effect of concentration,settlement and particle size on rheological properties of slurry,pipeline transportation concentration is an important parameter in pipeline design,which has great influence on pipeline transportation flow velocity,transportation resistance,pipeline diameter selection and operation cost.According to the results of rheological property test,the bigger the slurry concentration is,the worse its rheological property is.According to the results of settling property test,when the slurry concentration increases gradually from low concentration,the settling velocity of slurry gradually slows down,when the slurry concentration is in the range of 50%~55%,the settling velocity is obviously slowed down and the slurry stability is good.