Modelling of technological parameters of aluminium melt refining in the ladle by blowing of inert gas through the rotating impeller
| Autor: | Markéta Tkadlečková, Josef Walek, Mariola Saternus, Karel Michalek |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
lcsh:TN1-997
refining ladle Materials science chemistry.chemical_element Baffle 02 engineering and technology 020501 mining & metallurgy Impeller Aluminium General Materials Science Inert gas lcsh:Mining engineering. Metallurgy Refining (metallurgy) Ladle Metallurgy Metals and Alloys 021001 nanoscience & nanotechnology inert gas blowing degassing of the melt Volumetric flow rate 0205 materials engineering chemistry Scientific method impeller 0210 nano-technology physical modelling |
| Zdroj: | Metals Volume 11 Issue 2 Metals, Vol 11, Iss 284, p 284 (2021) |
| Popis: | The presented paper deals with the use of physical modelling to study the degassing process of aluminium melts in the refining ladle by blowing inert gas through a rotating impeller. For the purposes of physical modelling, a plexiglass model in a scale of 1:1 is used for the operating ladle. Part of the physical model is a hollow shaft used for gas supply that is equipped with an impeller and two baffles. The degassing process of aluminium melt by blowing of inert gas is simulated at physical modelling by a decrease of dissolved oxygen in the model liquid (water). This paper is aimed at the evaluation of laboratory experiments that were obtained by the method of physical modelling. Attention is focused on the assessment of relevant parameters for the degassing process-rotary impeller speeds, volume flow rate of inert gas, the distance of the impeller from the bottom of the refining ladle, and impeller variant. The preliminary results of physical modelling show that the optimal results of the refining process are achieved by using the F2A 190 impeller. Web of Science 11 2 art. no. 284 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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