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一用机械方法开采的苏联烟煤含-0.5毫米的細媒大約20％。这种細煤实际上只能用浮选方法选别。因此,特别是最近时期,煤浮选有很大的发展。大家知道,煤浮选过程並不复杂。然而,更确切些說,这仅仅是掌握它的第一阶段;只有在一定的理論基础上才可能进一步使浮选过程更加完善,特別是对一些难选煤來說。同时,煤浮选药剂作用的理論发展与矿石浮选比較还差得太远。为了弄清煤浮选时药剂作用的机理,最近几年來苏联科学院矿业研究所系統地进行了煤浮选时各种药剂作用的研究。药剂作用的研究采用了各种方法,像:直接浮选試驗、单泡器試驗、測定电动势、在加某
A mechanically mined Soviet bituminous coal contains about 20% of a fine medium of -0.5 mm. This kind of fine coal can be used only by flotation method. Therefore, especially in recent times, coal flotation has made great progress. We all know that coal flotation process is not complicated. More precisely, however, it is only the first phase of its mastery; it is only possible to further improve the flotation process on a certain theoretical basis, especially for some difficult coal preparations. At the same time, the theoretical development of the role of coal flotation reagents and ore flotation is still too far behind. In order to clarify the role of pharmaceutical agents when flotation mechanism, in recent years, the Institute of Mining Institute of the Soviet Union systematically conducted a study of the role of various agents when coal flotation. Study of the role of agents using a variety of methods, such as: direct flotation test, bubbler test, the determination of electromotive force, plus some