Influence of addition methods of reagent on slime water setting efficiency
WANG Xiaobin
LIU Changchun
LIANG Shihong
Abstract：To increase flocculation efficiency of slime and improve supplied materials characteristics from pressured filter,based on the a-nalysis of raw coal types and size composition,the influence of reagent,reagent concentration,dosing position,dosage on slime water setting efficiency was investigated. Adding 0. 8 mL reagent at twice had similar effect of adding 1. 0 mL reagent at a time. The second dosage made the slime floc aggregate again,the bigger floc sank quickly. Secondary dosage avoided the pollution of clear water and reduced total rea-gent consumption. The shorter the mixing time between slime and flocculant,the better the setting effect. Over-mixing would decrease the setting velocity. The setting effect was better when the reagent was added separately at protection box and bridge. Adding reagent in multi-ple locations improved setting efficiency and decreased circulating content of slime.
Keywords：thickenerslime waterflocculationmultiple dosing
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( 23-26 )