Research on the impact of rotor wear on the effectiveness of the aluminium refining process

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F23%3A43972105" target="_blank" >RIV/49777513:23210/23:43972105 - isvavai.cz</a>

Result on the web

<a href="https://www.nature.com/articles/s41598-023-44562-0" target="_blank" >https://www.nature.com/articles/s41598-023-44562-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-023-44562-0" target="_blank" >10.1038/s41598-023-44562-0</a>

Result language

angličtina

Original language name

Research on the impact of rotor wear on the effectiveness of the aluminium refining process

Original language description

Physical modelling is successfully used to understand mechanisms involved in the aluminium refining process by injecting inert gas into the liquid metal through rotors. Two types of industrial impellers, which are extremely different in construction, were tested in the research. The aim of the research was to determine the effectiveness of their operation depending on their degree of wear. This type of research has not been tested on water models so far. During the process, the parameters were changed, such as the gas flow rate from 13 to 19 L/min, the rotor speed from 325 to 400 rpm and the height of the rotor from the bottom of the refining reactor. Tests were carried out for new and worn rotors. Oxygen removal rate curves were prepared on the basis of tests determining changes in oxygen content in the model liquid as a function of time for changing rotor speed values. It was found that the efficiency of hydrogen removal from the model liquid was higher when worn impellers were used in the model. In order to verify results of model tests, a metallographic analysis of samples obtained in industrial conditions and using the analysed process parameters was carried out.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

2045-2322

Volume of the periodical

13

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

17

Pages from-to

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UT code for WoS article

001094254900031

EID of the result in the Scopus database

2-s2.0-85174466715