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针对亲水煤泥的表面性质,选择十二烷基苯磺酸钠、十二烷基三甲基氯化铵、油酸钠、辛醇几种典型的表面活性剂作为促进剂进行浮选试验,结果表明,油酸钠效果最好,当其用量为350 g/t时,浮选完善度可达到13%;对煤泥采用重选—浮选联合分选试验表明,该流程可实现煤泥的高效回收,总精矿产率为53.75%,灰分为23.06%,可燃体回收率达到54.07%。
According to the surface properties of hydrophilic slime, several typical surfactants, sodium dodecyl benzene sulfonate, dodecyl trimethyl ammonium chloride, sodium oleate and octanol, were selected as the flotation reagent , The results show that the best effect of sodium oleate, when the amount of 350 g / t, the flotation perfectness can reach 13%; coal sequestration by re-election - flotation joint sorting tests show that the process can achieve coal Efficient recovery of mud, the total concentrate yield was 53.75%, 23.06% of ash, combustible body recovery rate reached 54.07%.