Dependence of coal’s freezing point on its granulometric composition

Kormer, M. V.; Shmeltser, Ekaterina O.; Lyalyuk, V. P.; Uchitel, Aleksandr D.; Ляхова, Ірина Анатоліївна

doi:10.3103/s1068364x15010044

Cited by 5 publications

(2 citation statements)

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“…In the same conditions, the consumption of magnesium chloride increases from 6.2 to 15.6 g/kg for the ≤3 mm class; from 5.4 to 13.5 g/kg for the 3-7 mm class; and from 2.3 to 10.8 g/kg for the 7-15 mm class. The magnesium chloride consumption is less than the calcium chloride consumption [9]. As is evident from Table 4, treating only the ≤3 mm class increases the chloride consumption.…”

Section: Results Of the Studymentioning

confidence: 83%

Current Aspects of Prevention of Coal Freezing by Means of Inorganic and Organic Reagents

2021

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In the cold season, irregular coal supplies to coke plants are aggravated by the need to heat the coal cars. Thawing of rail cars in garages (enclosures) is the least efficient and most expensive approach. Treatment of the coal concentrates with chemical additives reliably prevents freezing in winter during transit from suppliers to consumers. With a view to finding new reagents for preventing the freezing of coal in winter, the lime, the acetates and chlorides of alkaline-earth and alkaline metals are studied. Attention focuses on their physicochemical characteristics, methods of preparation and of introduction in coal concentrate, and their influence on freezing. The results of studies have shown that the use of organosilicon is more effective use of acetates and chlorides of metals. The high activity of organosilicon substances is explained by their elemental composition and structure of molecules.

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