CFD modelling and optimization of oxygen supply mode in KIVCET smelting process
| Autor: | Liyuan Chai, Zhou Liao, Ping Zhou, Ling Zhang, Chenn Q. Zhou, Jia-dong Li |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Jet (fluid) Materials science Metallurgy Metals and Alloys Mixing (process engineering) Distributor chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Geotechnical Engineering and Engineering Geology Condensed Matter Physics 01 natural sciences Chemical reaction Oxygen chemistry 0103 physical sciences Smelting Materials Chemistry Combustor Particle 0210 nano-technology |
| Zdroj: | Transactions of Nonferrous Metals Society of China. 29:1560-1568 |
| ISSN: | 1003-6326 |
| DOI: | 10.1016/s1003-6326(19)65063-6 |
| Popis: | The influence of oxygen supply mode on the KIVCET (a Russian acronym for flash-cyclone-oxygen-electric-smelting) process was investigated using numerical simulation. The mass rate ratio (MRR) of central oxygen to lateral oxygen of the central jet distributor (CJD) burner was defined to express the oxygen supply mode, and the KIVCET process with an MRR ranging from 0.09 to 0.39 was simulated. The results show that there are four efficient reaction regions that correspond to four CJD burners. A higher central oxygen flow improves the mixing between particles and oxygen, thus enhancing reactions and shortening the reaction regions. However, a higher dust rate is induced due to the spread of the particle columns. The optimal MRR for a KIVCET furnace with a smelting capacity of 50000 kg/h is suggested to be 0.31. In this case, the chemical reactions associated with the feed are completed with an acceptable dust rate. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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