Journal of Siberian Federal University. Engineering & Technologies / Heat-Resistant Concrete for Collector Bars of Aluminum Reduction Сells Insulation

Full text (.pdf)
Issue
Journal of Siberian Federal University. Engineering & Technologies. 2016 9 (6)
Authors
Shahrai, Sergey G.; Arkhipov, Gennadiy V.; Polyakov, Peter V.; Mikhalev, Yuri G.; Ivanova, Antonina M.; Kalinovskaya, Tatiana G.; Shaydulin, Evgeniy R.; Avdeev, Yuriy O.
Contact information
Shahrai, Sergey G.:Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; E-mail: ; Arkhipov, Gennadiy V.:«RUSAL ETC» LTD 37/1 Pogranichnikov Str., Krasnoyarsk, 660111, Russia; Polyakov, Peter V.:Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; Mikhalev, Yuri G.:Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; Ivanova, Antonina M.:«Scientific and Technical Centre ELTER», Ltd 1, 26 Bakinskihkomissarov Str., Krasnoyarsk, 660004, Russia; Kalinovskaya, Tatiana G.:Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; Shaydulin, Evgeniy R.:«RUSAL ETC» LTD 37/1 Pogranichnikov Str., Krasnoyarsk, 660111, Russia
Keywords
aluminium cell; refractory concrete; horizontal currents; strength, modulus of elasticity; electrical resistance; energy efficiency
Abstract

In aluminium reduction technology it’s possible to reduce energy consumption and increase current efficiency by decreasing anode-cathode distance and horizontal currents in molten aluminium. Horizontal currents can be decreased by replacing insulation between cathode carbon block and collector bar in area of “ledge border – anode periphery projection on lining”. As an insulator it’s technologically and economically preferable to use refractory concrete which have good adhesion to steel, and chemical resistance against cryolite-alumina melt, sufficiently low compressive strength, which prevents cathode carbon block destruction in case of insulator volume expansion due to electrolyte attack. Results of the refractory concrete properties studies results in order to select the optimal bar’s insulator material composition are presented

Pages
918-927
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/21610

Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).