The results of the flotation experiments shows that the ash content of the washed coal is only half of the coal slurry flotation without comminution by high pressure water jet, and the total sulfur.
试验结果表明，高压水射流粉碎过的煤泥浮选后其精煤的灰分含量为煤泥直接浮选精煤含量的一半，全硫含量仅为煤泥直接浮选精煤含量的五分之一。
After four - stage cleaning flotation. 86.8 % of ash was rejected from coal.
经过四步浮选后，灰分的去除率可达到86.8％；
Aimed at the practical situation-the ash of flotation concentrate is higher than it of concentrate exports in production, the way to reduce the ash of flotation concentrate is discussed.
针对生产中存在的浮选精煤灰分高于外销精煤灰分的实际情况，探讨了降低浮选精煤灰分的途径。
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