Industrial investigation of thermooxidative coking on interlinked gratings

Strakhov, V. M.; Kaliakparov, A. G.; Kariev, Artem; Жумагулов, М. Г.; Nikiforov, A. S.

doi:10.3103/s1068364x08050050

Cited by 5 publications

(3 citation statements)

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“…Since this type of coal belongs to non-baking long-flame coals of the D brand, the production of special coke in conventional coke batteries is impossible, therefore, a thermal oxidation method of coking on grate grates is recommended [ [18], [19], [20]].…”

Section: Introductionmentioning

confidence: 99%

“…Despite the large number of scientific works carried out in the field of production of special coke from non-baking coals of Kazakhstan, there is incomplete information about the features of the pyrolysis process of this type of coal and the dependence on the physical and physicochemical parameters of the special coke and on the parameters of coking [ [17], [18], [19], [20], [21], [22], [23]].…”

Section: Introductionmentioning

confidence: 99%

“…In turn, the stable content of humidity and volatile parameters contribute to an increase in the electrical resistance and reactivity of the special coke [ [1], [5], [18], [19], [20]].…”

Section: Introductionmentioning

confidence: 99%

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Determination of the quality of special coke as a result of heat treatment of coal from the Shubarkolskoye field

Aubakirov¹,

Kaliakparov²,

Tolymbekova³

2023

KIMS/CUMR/MShKP

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To date, there is a tendency to increase the pace of production in the field of ferrous metallurgy. The constant demand for steel products is accompanied by an increase in prices for raw materials, including carbon reducing agents. In the conditions of the domestic market of Kazakhstan, of great interest is the study and the possibility of using low-baking and non-baking coal as a raw material for the production of special coke used as a reducing agent in metallurgy, the relevance and expediency of which is also due to the resource conservation and energy efficiency program in the use of raw materials put forward by the Government of the Republic of Kazakhstan. In this article, as a result of the search for high-quality, alternative types of reducing agents used in the production of ferroalloys, experimental data of thermal oxidation treatment (coking) of long-flame, non-baking coals of the Shubarkol deposit (Kazakhstan) are presented. In laboratory conditions, during the experiments, the tested grade D coals with a fraction of 70-80 mm were subjected to temperature exposure at temperatures of 800, 850, 900, 950 °C with various preset heating speeds to determine the quality characteristics that meet the requirements for reducing agents for the metallurgical industry, in particular for the production of ferroalloys, in electro thermal, steelmaking, for agglomeration of iron and non-ferrous ores, etc. A technical analysis of long–flame coal was carried out, the volatile and moisture content of which are Vdaf – 44.5%, W – 14.8%, respectively. Also, the obtained special coke was evaluated by the content of volatile components as a result of heat treatment of coals from the Shubarkol deposit: the volatile content averaged 1.73-3.15%, the moisture was 0.73-1.65%.Based on the results of the studies, the possibility of obtaining a special coke from these types of coals with appropriate characteristics was shown.

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Section: Introductionmentioning

confidence: 99%