ALRO Slatina Plant

Slatina-Timiş, Romania

ALRO Slatina Plant

Slatina-Timiş, Romania
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Morega A.M.,Polytechnic University of Bucharest | Morega A.M.,Gheorghe Mihoc Caius Iacob Institute of Statistical Mathematics and Applied Mathematics | Petre M.V.,ALRO Slatina Plant | Cilianu M.,ALRO Slatina Plant
2011 7th International Symposium on Advanced Topics in Electrical Engineering, ATEE 2011 | Year: 2011

With the increase in the electrical power of the aluminum electrolysis cell grows also the internal heat produced, and this may cause the expansion of the cathode blocks and implicitly the deformation of the cathode bars. To decrease the risk of breaking of welding with the flexible beam, along with finding ways and means to dissipate the heat in excess, one solution is to modify the current design of the flexible connections. Consequently we investigate the thermally induced stress-strain within the flexible beam, and the couplings between the current flow, Joule heating and heat transfer within the flexible beam, and thermal expansion. © 2011 Univ Politehnica of Buchare.


Radulescu C.,ALRO Slatina Plant | Ciobanu G.,ALRO Slatina Plant | Panait N.,Polytechnic University of Bucharest
UPB Scientific Bulletin, Series B: Chemistry and Materials Science | Year: 2012

The method targets a continuous control, with automatic signaling of the alumina feeding and crust breaking during the operation at the upgraded pots for the electrolytic aluminum production. The method is based on a continuous control of the alumina concentration variation in the electrolyte by seizing the attainment of minimum critical thresholds which lead to the anode effects occurrence. The method aims to establish the eventual differences between a preset standard chart of pot pseudo-resistance variation and its real variation chart during pot operation. When some differences between the two charts are noticed, situated over the preset maximum thresholds, an acoustic signal is given and message to the process computer is sent to inform about the occurrence of a fault at the alumina feeding devices.


Radulescu C.,ALRO Slatina Plant | Ciobanu G.,ALRO Slatina Plant | Panait N.,Polytechnic University of Bucharest
UPB Scientific Bulletin, Series B: Chemistry and Materials Science | Year: 2012

This study has allowed the identification of a correlation, with a high determination coefficient R2 = 0.91, between the evolution of the level of instability in pot operation and main average process parameters achieved over a certain operating period, namely the average cathode drop, the actual average voltage, the average number of anode effects, the pot age. These relations create the possibility to perform individual recalculation for each pot, in automatic mode at 10 - 20 day preset intervals, of the reference resistance that would ensure a good operating thermal stability as well as a level of instability as reduced as possible.


Petre M.V.,ALRO Slatina Plant | Morega A.M.,Polytechnic University of Bucharest
UPB Scientific Bulletin, Series C: Electrical Engineering | Year: 2010

This paper presents the heat transfer by the side-wall of an electrolysis cell in ALRO Slatina plant. Because internal heat generation increases with the electrical power density, adequate ways and means of dissipating the heat in excess must be considered. One of the solutions consists in redesigning the current cell wall. The paper presents simulation and experimental results that may be of interest in to the cell case design.

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