Efficiency of application of antipyrogenic materials for coating coals and coke
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- Category: Contens №6 2019
- Last Updated on 01 January 2020
- Published on 23 December 2019
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Authors:
N.A.Drizhd, Dr. Sc. (Tech.), Prof., orcid.org/0000-0001-7269-7626, Republican State Enterprise in the capacity of Economic Conduct “Karaganda State Technical University”, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
A.Zh.Dauletzhanov, orcid.org/0000-0002-1770-3728, Republican State Enterprise in the capacity of Economic Conduct “Karaganda State Technical University”, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
N.M.Zamaliyev, PhD, orcid.org/0000-0003-0628-2654, Republican State Enterprise in the capacity of Economic Conduct “Karaganda State Technical University”, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Zh.T.Dauletzhanova, orcid.org/0000-0001-9682-5127, Republican State Enterprise in the capacity of Economic Conduct “Karaganda State Technical University”, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract:
Purpose. Selection of the most effective anti-pyrogenic coating for stacks of coal and special coke during open storage to preserve consumer properties.
Methodology. The methods of technological modeling and experimental studies are used.
Findings. Observations of physical changes in stacks covered with various flame retardant materials are conducted through field and laboratory tests over time. Corresponding degrees of preservation of the initial state of the product when using certain coatings are established. The most effective coatings were identified by changes in the technical and particle size parameters of coals and special coke. Monitoring of temperature data in the depth of stacks confirmed a direct relationship between stack volumes and the degree of oxidation processes.
Originality. For the first time, the dependences of the safety of fractions and technical parameters of Shubarkol coal and special coke in stacks on the use of different flame retardants over time have been established. The obtained results on using polymeric materials make it possible to create similar coatings from recycled materials and production wastes.
Practical value. The obtained laboratory results allow us to recommend certain anti-pyrogenic materials for use in production operations on the basis of the Shubarkol and other coal industry enterprises. The development of polymer coatings from recycled coke production will improve the environmental situation in the region.
References.
1. Gamov, M. I., & Gordeyev, I. V. (2017). The main factors and environmental consequences of spontaneous combustion of dumps of coal mines of the East Donbass, University News. North Caucasus Region, Natural Sciences, (2), 92-100. https://doi.org/10.23683/0321-3005-2017-2-92-100.
2. Ozdogan, M. V., Turan, G., Karakus, D., Onur, A. H., Konak, G., & Yalcin, E. (2018). Prevention of spontaneous combustion in coal drifts using a lining material: a case study of the Tuncbilek Omerler underground mine, Turkey. J. S. Afr. Inst. Min. Metall., 118(2). https://doi.org/10.17159/2411-9717/2018/v118n2a8.
3. ST RK 1526-2016 Coals of the Shubarkol deposit. Technical conditions(n.d.). Retrieved from https://www.egfntd.kz/rus/tv/385998.html.
4. ST RK 1527-2006 Solid mineral fuel. Marking, packaging, transportation and storage(n.d.). Retrieved from https://www.egfntd.kz/rus/tv/337754.html.
5. Portola, V. A., & Torosyan, E. S. (2016). The effect of flame retardants on the sorption activity of a preheated. Bulletin of the Kuzbass State Technical University, (3), 15-20.
6. ASTM D7582-5 Standard Test Methods for Proximate Analysis of Coal and Coke by Macro Thermogravimetric Analysis. Chapter 5. Significance and Use (5.5)(n.d.). https://doi.org/10.1520/D7582-15.
7. Portola, V. A., & Chramtsov, V. I. (2017). The effect of compositions used in mines on the tendency of coal to spontaneous combustion. Industrial safety, (2), 56-59.
8. GOST 2093-82 Interstate standard. Solid fuel. The sieve method for determining the particle size distribution(n.d.). Retrieved from http://docs.cntd.ru/document/gost-2093-82.
9. Drizhd, N. A., & Dauletzhanov, A. Zh. (2018). The use of anti-pyrogenic materials for coating of coal and coke from the Shubarkol deposit. In Works of the International Scientific and Practical Conference “The integration of science, education and production is the basis for the implementation of the Plan of Nations” (Saginov readings -10), Karagandy, 14‒15 June 2018. Retrieved from http://www.kstu.kz/wp-content/uploads/2018/10/12/%D0%A7%D0%B0%D1%81%D1%82%D1%8C%204.pdf.
10. GOST 147-2013 (ISO 1928:2009) Solid mineral fuel. Determination of gross calorific value and calculation of net calorific value(n.d.). Retrieved from http://docs.cntd.ru/document/1200107606.
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