Benefication of coking-coal slimes by means of screen centrifuges

A new slime-benefication technology has been developed at Coal Preparation Plant Neryungrinskaya. In this technology, the product is separated in screen centrifuges. As a result, small particles with relatively high ash content are extracted in the centrifugate. Correspondingly, the cake has the req...

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Bibliographic Details
Published in:Coke and chemistry (New York, N.Y.) N.Y.), 2009-06, Vol.52 (6), p.243-247
Main Authors: Osadchii, S. A., Samoilova, E. K., Gol’berg, G. Yu
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Coal
Industrial Chemistry/Chemical Engineering
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Summary:A new slime-benefication technology has been developed at Coal Preparation Plant Neryungrinskaya. In this technology, the product is separated in screen centrifuges. As a result, small particles with relatively high ash content are extracted in the centrifugate. Correspondingly, the cake has the required ash content of ≤10%. Industrial tests indicate that this technology is feasible at the facility. The parameters that ensure most effective slime separation are determined. The new slime-benefication system is simple and characterized by relatively low operating costs: the expected reduction in production costs relative to the existing technology is ∼126 million rub/yr.
ISSN:1068-364X
1934-8398
DOI:10.3103/S1068364X09060015