Журналы →  Tsvetnye Metally →  2017 →  №6 →  Назад

LIGHT METALS AND CARBON MATERIALS
Название Assessment of effect of coagulation and sedimentation of dust particles on operation stability of aluminium electrolyzer burners
DOI 10.17580/tsm.2017.06.08
Автор Shakhray S. G., Dekterev A. A., Skuratov A. P., Klimovich L. V.
Информация об авторе

Siberian Federal University, Krasnoyarsk, Russia:

S. G. Shakhray, Assistant Professor, Chair of Technosphere Safety of Mining and Metallurgical Production, e-mail: shahrai56@mail.ru
A. A. Dekterev, Assistant Professor
A. P. Skuratov, Professor
L. V. Klimovich, Senior Lecturer

Реферат

Repeating extinction of burning is one of problems during the exploitation of the final burners of aluminium electrolyzer anode gases. During these periods, unburned resins in burned anode gases are released in gas flue networks. As resins are condensed, dust particles in removed gases are intensively sedimented there from gas flow. According to this, gas flue network forms the sediments, reducing the usable area of the cross section of gas flues. Burning is extincted because of the change of qualitative composition of anode gas entered in burner during depressurization of gas-collecting bell, when burning is carried out directly under the bell and preventing the gas access in burner as a result of the bell driving with sedimentations. Beyond this, burner can be extincted as a result of the growth of dust concentration because of its coagulation and formation of conglomerates with the coarseness of up to 400 μm and more. The same processes are in gas flue network, which complicates the problem of sediments formation. Our paper shows the results of assessment of intensity of coagulation and sedimentation of dust particles and their influence on stability of aluminium electrolyzer burners operation.
This paper was financially supported by the Russian Foundation for Basic Research, the Government of Krasnoyarsk Krai and Krasnoyarsk Krai Fund of support of scientific and scientific-technical activity within the scientific project No.17-48-240595 р_а.

Ключевые слова Aluminium electrolyzer, burner, anode gases, final burning, dust, coagulation, sedimentation, extinction
Библиографический список

1. Syrdal A. K. The Søderberg Cell Technology — Future Challenges and Possibilities. Light Metals. 2002. pp. 319–325.
2. Barber M., Tabereaux A. T. The end of an era for Søderberg technology in North and South America. Light Metals. 2014. pp. 809–814.
3. Shakhray S. G., Skuratov A. P., Belyanin A. V. Calculation of parameters of final burning of aluminium electrolyzer anode gases. Collection of reports of the VII International Congress “Non-ferrous metals-2015”, Krasnoyarsk, September 14–18, 2015. pp. 146, 147.
4. Bezborodov L. S., Vasilev V. V., Dekterev A. A. Optimization of system of gas purification of electrolysis production of aluminium for its fire and blast safety increasing. Sibirskiy vestnik pozharnoy bezopasnosti. 1999. No. 3/4. pp. 26–46.
5. Kulikov B. P., Storozhev Yu. I. Dust and gas emissions of aluminium electrolysers with self-baked anodes : monograph. Krasnoyarsk : SFU, 2012. 268 p.
6. Andersen D. H., Linga H. Evaluating the Crack Resistance of Carbon Anodes: Implementation of a Measurement System for Tensile Strength and Fracture Toughness. Light Metals. 2015. pp. 1123–1128.
7. Khalil Khaji, Qassemi M. A. Factors influencing baked anode properties. Light Metals. 2015. pp. 1135–1140.
8. Sommerseth C., Thorne R. J., Rorvik S., Sandnes E., Ratvik A. P., Lossius L. P., Linga H., Svensson A. M. Spatial methods for characterising carbon anodes for aluminium production. Light Metals. 2015. pp. 1141–1146.
9. Shakhray S. G., Korostovenko V. V., Rebrik I. I. Improvement of bell fume exhaust systems on powerful Soderberg electrolyzers : monograph. Krasnoyarsk : IPK SFU, 2010. 146 p.
10. Burkat V. S., Drukarev V. A. Decreasing of emissions in atmosphere during aluminium production. Saint Petersburg, 2005. 275 p.
11. Fuks N. A. Aerosol mechanics. Moscow : Izdatelstvo AN SSSR, 1955. 352 p.
12. Pavlov K. F., Romankov P. G., Noskov A. A. Examples and tasks of the course of processes and apparatuses of chemical technology. Tutorial for universities. 10-th edition, revised and enlarged. Leningrad : Khimiya, 1987. 576 p.
13. Korolchenko A. Ya. Burning processes and explosions. Moscow : Pozhnauka, 2007. 266 p.
14. Shakhray S. G., Korostovenko V. V., Puzin A. V. Method of purification of burner device and gas flue networks of aluminium electrolyzer. Patent RF, No. 2437966. Applied: 30.10.2010. Published: 27.12.2011. Bulletin No. 36.
15. Sugak E. V., Kuznetsov E. V., Shakhray S. G. The dynamics of gasdispersion flow in the uptake. Vestnik Sibirskogo gosudarstvennogo aerokosmicheskogo universiteta imeni akademika M. F. Reshetneva. 2005. Iss. 7. pp. 18–23.

Language of full-text русский
Полный текст статьи Получить
Назад