Authors: A.N. Zaostrovsky, N.A. Grabovaya, Z.R. Ismagilov

Title of the article: The relationship of petrographic features and the sintering properties of carbon

Year: 2019, Issue: 6, Pages: 22-28

Branch of knowledge: 05.17.07 Chemical technology of fuel and high-energy substances

Index UDK: 662.741.3.022.001.5

DOI: 10.26730/1999-4125-2019-6-22-28

Abstract: The study was carried out to establish interacting of petrographic features and sintering coal properties. The coals of the Kuznetsk basin are extremely diverse in petrographic composition and therefore the coal of each layer should be considered as a natural charge, consisting of fusible and exhaust components.
The object of the study was concentrates of coking coal grades from the Kuzbass enrichment plants. According to the technical analysis, coal samples are similar in ash content (A^d = 7.6–11.8%). The volatiles yield indices (V^daf = 19.8-38.0) and the thickness of the plastic layer are closely related to the petrographic composition and the stage of coal metamorphism. Taking into consideration the petrographic parameter - a reflection index of vitrinite (R_o,r), coals, according to the genetic classification, belong to the 07–13 class, combining coals of coking grades. The forms of reflectograms obtained on the basis of the reflection index of vitrinite make it possible to predict possible changes in the production process with the further use of the particular brand of coal.

Key words: coal petrographic coal analysis vitrinite reflection index reflectogram sintering ability coking ability of coal

Receiving date: 18.12.2019

Publication date: 31.12.2019

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