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某浮选尾煤脱泥后可浮性试验研究

Coal Conversion(2019)

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Abstract
采用Ф25 mm小锥角水力旋流器对煤泥进行预先脱泥,通过顺序评价试验对旋流器脱泥前后煤泥进行可浮性评定.结果表明:煤泥脱泥前,当精煤灰分定为12%时,精煤产率为13.68%,可燃体回收率为17.94%,可浮性为极难选;经过Ф25 mm水力旋流器脱泥后,底流合格精煤产率为36.47%,可燃体回收率为42.44%,可浮性为难选.顺序评价试验结果表明,各产品灰分均减小,说明旋流器预先脱泥对后续浮选有效,煤泥可浮性得到有效改善.
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