Abstract
Considered are aspects of application of hydraulic screens with the fixed and combined (fixed + moving) screening surface of various geometrical shapes (rectangular, conical, conical-and-rectangular) for preparation of machine grades at preparatory wet screening of ROM coals by separation size of 6-20mm. It is shown that efficiency of preparatory wet screening depends on energy intensity of process, but is determined by the value of so-called screening work consumed directly for screening the grades being under the separation size to the undersize product. Based on cost-effectiveness balance, optimum is application of the combined shape of screening surface providing the factory section productive capacity of 500-1000t/h in case of single-flow version, with the resulting quality of large machine grade meeting the requirements of heavy-media separation in magnetite medium.
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Alexandrovitch, P.D., Danilovitch, P.A., Yurjevitch, P.A., Teodozievitch, S.Y. (2016). HYDRAULIC SCREENING AS METHOD OF ROM COAL MACHINE GRADES PREPARATION. In: Litvinenko, V. (eds) XVIII International Coal Preparation Congress. Springer, Cham. https://doi.org/10.1007/978-3-319-40943-6_148
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DOI: https://doi.org/10.1007/978-3-319-40943-6_148
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