Coke quality at OAO MMK with deterioration in available coal resources

Lakhtin, S. N.; Shashkov, O. A.; Mel’nikov, I. I.; Zolotukhin, Yu. A.

doi:10.3103/s1068364x11120064

Cited by 6 publications

(2 citation statements)

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“…7 shows that with an increase in the yield of volatile matters to 25 %, there comes a decrease in IR (coal caking index increasing), and when V daf is over 30 %, the mechanical properties deteriorate. In this range, typically, with the growth of volatiles the coals caking capacity decreases [8] [20] [21]. The findings are consistent with the research data [8] obtained for the coke residue after the determination of the rheological properties of coal in accordance with GOST 1186-87 [9].…”

Section: Fig 7 Dependence Coke Residue Abrasion On the Volatiles Yieldsupporting

confidence: 83%

Evaluation of the Coking Capacity Indicator of Coking Coal Concentrates Based on the Research of Non-volatile Residue Strength Via Determination of the Coking Chemical Products Yield

Васильева¹,

Cherkasova²,

Subbotin³

et al. 2016

Proceedings of the 8th Russian-Chinese Symposium "Coal in the 21st Century: Mining, Processing, Safety"

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In modern conditions, one of the most acute problems for the coking industry include deterioration of raw material base for coking and coking coal deficit. The negative impact of the deterioration of the raw material condition on the yield and quality of coking products can be compensated by the increase in the level of coal blending quality management, which is primarily based on the chemical and technological properties of coal. Therefore, for the analysis of the above parameters, it is necessary to make a full use of the potential of all available coal properties valuation techniques. In the course of this work, the quality indicators of coal concentrates of the Kuznetsk Basin were defined and the strength properties of non-volatile residue obtained in determining the yield of chemical products of coking were studied. Based on the analysis of the obtained results, the experimental dependences of the reviewed parameters were built. Keywordscoal, volatile matters, chemical products of coking, non-volatile residue, non-volatile residue strength.

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Section: Fig 7 Dependence Coke Residue Abrasion On the Volatiles Yieldsupporting

confidence: 83%

Evaluation of the Coking Capacity Indicator of Coking Coal Concentrates Based on the Research of Non-volatile Residue Strength Via Determination of the Coking Chemical Products Yield

Васильева¹,

Cherkasova²,

Subbotin³

et al. 2016

Proceedings of the 8th Russian-Chinese Symposium "Coal in the 21st Century: Mining, Processing, Safety"

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“…The use of such high-value coal improves coke quality with its inevitable rise in prices. At the same time, during periods when the coke quality, especially by abrasion (M 10 ), is deteriorating due to various reasons of coal raw nature, the coke worsens the indicators of blast furnace performance, becoming the dominant negative factor [9].…”

Section: Introductionmentioning

confidence: 99%

Dependence of the Yield of Chemical Coking Products from Coal Concentrates on Their Nature

Васильева¹,

Cherkasova²,

Subbotin³

et al. 2016

Proceedings of the 8th Russian-Chinese Symposium "Coal in the 21st Century: Mining, Processing, Safety"

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-The relevance of the work is justified by the need for a comprehensive assessment of the quality of coal concentrate used to produce coal blends in the coking process, and resources of coking chemical products derived from them. This information is necessary for making optimal coal blends for coking and for planning of coking plants operation. The purpose of work is to study the impact of the qualitative characteristics of the Kuznetsk Basin coal concentrates on the yield and composition of coking chemical products for the purpose of making coal blends for coking on their basis. In the course of studies, the following indicators have been identified: the technical analysis, caking, petrographic analysis, the yield of chemical coking products from coal concentrates and strength of the resulting coke residue. The main results of the study are the data on the main indicators of the quality of the investigated coals of the Kuznetsk basin and the coking yield as well as the relationships between these parameters. The results will later be used in the preparation of optimal coal blends for coking in the real production conditions of OAO "Koks".

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Determining the technological value of coal on the basis of coke-quality predictions

Stankevich

Zolotukhin²

2015

Coke Chem.

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Coke quality at OAO MMK with deterioration in available coal resources

Cited by 6 publications

References 0 publications

Evaluation of the Coking Capacity Indicator of Coking Coal Concentrates Based on the Research of Non-volatile Residue Strength Via Determination of the Coking Chemical Products Yield

Evaluation of the Coking Capacity Indicator of Coking Coal Concentrates Based on the Research of Non-volatile Residue Strength Via Determination of the Coking Chemical Products Yield

Dependence of the Yield of Chemical Coking Products from Coal Concentrates on Their Nature

Determining the technological value of coal on the basis of coke-quality predictions

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