Coke quality and optimization of batch composition

Lyalyuk, V. P.; Kassim, D. A.; Lyakhova, I. A.; Sokolova, V. P.

doi:10.3103/s1068364x12120010

Cited by 6 publications

(7 citation statements)

References 1 publication

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“…Specialists at Ukrai nian Coal Chemistry Institute have reached an analo gous conclusion for Ukrainian coke plants [5]. There fore, we are surprised by the claim that the increase in decrease in the mechanical strength of coke produced at Ukrainian enterprises, including the ArcelorMittal Krivoi Rog plant [1]. The suggested explanation for this conclusion is that the ranks assigned by the coal suppliers may not match the ranks identified at the coke plant.…”

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confidence: 99%

“…Lyalyuk and his colleagues identify the optimal rank composition in terms of the best coke quality for each enterprise [1]. However, that is inconsistent with the fundamental theoretical principles in batch for mulation, from optimization of the monthly coal orders to ongoing correction of the batch composition in the light of coal quality (including petrographic data).…”

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confidence: 99%

“…The dependence of coke quality on optimization of the batch was discussed in this journal by Lyalyuk and his colleagues [1]. For coke production at ArcelorMit tal Krivoi Rog, a new optimal rank composition was adopted, and a formula for the coefficient K opt(Vt) tak ing account of petrographic and reflectogram data was proposed.…”

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confidence: 99%

“…At the Krivoi Rog coke plant, intake monitoring of the coal includes technical, plastometric, petro graphic, and other analysis, according to [1]. There fore, we do not understand why concentrates imported from the United States are classified solely in terms of the yield of volatiles, without considering the plastic layer thickness, as required by State Standard GOST 25543-88 [7].…”

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confidence: 99%

“…According to the yield of volatiles V daf , the imported HV coal was assigned to ranks DG and G in [1]; all the other imported coal was assigned to ranks K and Zh. Such indiscriminate assignment to ranks K and Zh, which differ greatly in clinkering properties and in their role in the batch, is unacceptable in prac tice, especially where imported coal is concerned.…”

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Popova¹,

Stepanov²

2013

Coke Chem.

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Popova¹,

Stepanov²

2013

Coke Chem.

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Modeling the horizontal movement of bulk material in the system “conveyor – rotary mixer”

et al. 2020

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In this work, we consider methods for analytical construction of the profile of rotor blades mixer, as well as mathematical modeling of their work on moving and mixing bulk material on a conveyor to increase process efficiency mixing raw materials and optimizing its operating costs. In addition to increasing the effectiveness of the mixing process and lower operating costs, the goal of implementation the proposed methods is the consciousness of production with the least possible errors that would meet modern technical requirements and be adapted to consumer tasks. In this regard, the aim of this work was to determine rational parameters and geometric characteristics of the profile of the rotor mixer blades contributing to improving the quality of mixing the metallurgical charge transported on a conveyor belt. To achieve the goal by modeling, which is a key method of the fourth concept industrial revolution, using the developed mathematical model analyzed the movement of a particle of material along a conveyor belt with its subsequent interaction with the blades of the working body of the rotary mixer.

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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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Coke quality and optimization of batch composition

Cited by 6 publications

References 1 publication

More on the optimization of batch composition

More on the optimization of batch composition

Modeling the horizontal movement of bulk material in the system “conveyor – rotary mixer”

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

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