Engineering Solutions for Cooling Aluminum Electrolyzer Exhaust Gases : научное издание | Научно-инновационный портал СФУ

Engineering Solutions for Cooling Aluminum Electrolyzer Exhaust Gases : научное издание

Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.1007/s11015-017-0394-z

Ключевые слова: aluminum, electrolyzer, bag filter, anode gases, complete combustion, burner unit, gas conduit, deformation, cooling

Аннотация: During aluminum production by self-fi ring anode technology, complete combustion of anode gas components (carbon monoxide, resin substances) is accomplished in electrolyzer burner units. With the aim of reducing combustion product temperature entering the gas conduit network of the electrolyzer body, air is fed into a burner unit in excess (alpha = 6). This amount considerably exceeds that recommended for burning gaseous fuel. As a result of the excessive air intake, excess air the temperature in the combustion zone may be reduced to 300A degrees C. Unburned resin substance is carried with this into the gas exhaust system that is cooled, condensed, and together with dust particles contained in transported anode gases, is deposited on the walls of gas conduits reducing their useful cross section. An improvement in anode gas fuel component complete combustion by optimizing excess air within the limits of alpha = 1.5-1.2 provides a temperature within the combustion zone within the limits of 1270-1330A degrees C. However, in the process the temperature of combustion products entering from a burner into the gas circuit increases to 1000A degrees C and above, and this is connected with the risk of irreversible deformation of steel gas conduits and melting of gas cleaning unit (GCU) bag filters whose permissible operating temperature is in the range 140-160A degrees C. Engineering solutions are proposed in this article aimed at providing safe operation of gas conduit circuits and electrolysis housing GCU with increased efficiency for burning resin substances in electrolyzer burner units.

Ссылки на полный текст

Издание

Журнал: METALLURGIST

Выпуск журнала: Vol. 60, Is. 9-10

Номера страниц: 973-977

ISSN журнала: 00260894

Место издания: NEW YORK

Издатель: SPRINGER

Авторы

  • Shakhrai S.G. (Siberian Fed Univ, Krasnoyarsk, Russia)
  • Nemchinova N.V. (Irkutsk Natl Res Tech Univ, Irkutsk, Russia)
  • Kondrat'ev V.V. (Irkutsk Natl Res Tech Univ, Irkutsk, Russia)
  • Mazurenko V.V. (RUSAL Co, Rus Engn Div, Shelekhov Branch, Shelekhov, Russia)
  • Shcheglov E.L. (RUSAL Co, Rus Engn Div, Krasnoyarsk Branch, Krasnoyarsk, Russia)

Вхождение в базы данных

Информация о публикациях загружается с сайта службы поддержки публикационной активности СФУ. Сообщите, если заметили неточности.

Вы можете отметить интересные фрагменты текста, которые будут доступны по уникальной ссылке в адресной строке браузера.