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Rules governing the classification of coal slurries for filtering centrifuges

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Abstract

The feasibility of using filtering centrifuges for the cleaning of a coking-coal slurry is confirmed in principle, and regime operating parameters, which ensure the production of a concentrate of conditioned quality are determined on the basis of results of experimental-industrial tests of a new procedure for this operation at the Neryungrinskaya Concentrating Mill. An equation is proposed for determination of solid carry-off in the centrifuge effluent, which completely satisfactorily (with a correlation coefficient of 0.7–0.8) describes the dependence of the parameter in question on the solid content in the centrifuge feed, and on its content of −0.2-mm material. It is noted that special investigations to determine the effect of the speed of the rotor and shape of the particles on the amount of solid carry-off in the centrifuge effluent are required for construction of a model describing the size reduction of solid-phase particles in the effluent during centrifuge filtration.

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Authors and Affiliations

  1. Institute for Enrichment of Solid Fuel (IOTT), Lyubertsy, Moscow Oblast, Russia

    G. Yu. Gol’berg & Yu. B. Rubinshtein

  2. Neryungrinskaya Concentrating Mill, Neryungri, Sakha (Yakut) Republic, Russia

    S. A. Osadchii

Authors
  1. G. Yu. Gol’berg
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  2. Yu. B. Rubinshtein
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  3. S. A. Osadchii
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Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, No. 7, pp. 10–12, July, 2008.

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Gol’berg, G.Y., Rubinshtein, Y.B. & Osadchii, S.A. Rules governing the classification of coal slurries for filtering centrifuges. Chem Petrol Eng 44, 366–370 (2008). https://doi.org/10.1007/s10556-008-9065-z

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  • DOI: https://doi.org/10.1007/s10556-008-9065-z

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