ZS乳化药剂对褐煤半焦浮选结果的影响及机理分析

Analysis of emulsified ZS reagent effect on flotation results of lignite semi-coke and its mechanism

为提高褐煤半焦的浮选效果,基于对褐煤半焦的工业分析、元素分析和红外光谱分析,以及褐煤半焦表面的孔径分布测定,采用ZS乳化药剂作为捕收剂对褐煤半焦进行浮选试验,并对比了常规药剂0号柴油、煤油、ZS药剂的浮选效果。试验结果表明:褐煤半焦经浮选后可实现一定程度的降灰,但常规药剂浮选褐煤半焦时药剂消耗较大,在浮选精煤灰分相近时,使用ZS乳化药剂可以节省79%的药剂用量,使药剂消耗降至1 kg/t以下,同时提高了精煤产率和浮选完善指标,最后对ZS乳化药剂的捕收机理进行了初步探讨。

In order to improve flotation effect of lignite semi-coke,based on the proximate analysis,element analysis and infrared spectrum analysis on the lignite semi-coke and the measurement on the pore diameter distribution of the lignite semi-coke,the emulsified ZS reagent would be applied to the flotation experiment on the lignite semi-coke and the floatation effects of the conventional reagent No. 0 diesel,kerosene and ZS reagent were compared.The experiment results showed that after the floatation,the ash content of the lignite semi-coke could be reduced in some degree and when the conventional reagent applied to the floatation of the lignite semi- coke,the reagent consumption would be high.When the ash content of the clean coal from the floatation was closed to,the application of the emulsified ZS reagent could save the reagent volume by 79% and the reagent consumption would be reduced below 1 kg / t.The clean coal yield and floatation perfect index would be improved and a preliminary discussion was conducted on the collection mechanism of the emulsified ZS reagent.