Coal Dust Wettability Test
V. A. ARKHIPOV1,2, D. YU. PALEEV3, YU. F. PATRAKOV3, A. S. USANINA3,4
1Tomsk State University, pr. Lenina 36, Build. 10, Tomsk, 634050 Russia
2Institute for Problems of Chemical and Energetic Technologies, Siberian Branch, Russian Academy of Sciences, ul. Sotsialisticheskaya 1, Biysk, 659322 Russia
3Institute of Coal, Siberian Branch, Russian Academy of Sciences, pr. Leningradskii 10, Kemerovo, 650065 Russia
4Tomsk State University, pr. Lenina 36, Tomsk, 634050 Russia
Keywords: coal, coal dust, wettability, air and dust mixture, spectral transmittance, capture coefficient
Abstract
The authors present a new method of testing wettability of fine coal particles settled on water drops. Ratio of wetted particles is calculated by measured optical density of air and dust mixture. The offered method enables measurements to be taken immediately in the air and dust mixture, without mechanical treatment of coal dust particles, which improves accuracy of particle wettability testing
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