Investigation on the Alloy Mixing and Inclusion Removement through Using a New Slot-Porous Matched Tuyeres
A mathematical model was developed to investigate the refining process through using slot-porous matched dual tuyeres. In this model, the bubble expansion is considered through the ideal gas state equation. The density variation of bubbles is calculated through the mass conservation equation. The co...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/4/667 |
| _version_ | 1797604306074992640 |
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| author | Xianglong Li Huihua Wang Jun Tian Deyong Wang Tianpeng Qu Dong Hou Shaoyan Hu Guangjun Wu |
| author_facet | Xianglong Li Huihua Wang Jun Tian Deyong Wang Tianpeng Qu Dong Hou Shaoyan Hu Guangjun Wu |
| author_sort | Xianglong Li |
| collection | DOAJ |
| description | A mathematical model was developed to investigate the refining process through using slot-porous matched dual tuyeres. In this model, the bubble expansion is considered through the ideal gas state equation. The density variation of bubbles is calculated through the mass conservation equation. The coalescence and breakup of bubbles are tracked using the discrete particle model (DPM). The transient flow is computed through the k-ε model with three continuous phases (air–slag–steel). Comparisons were made between traditional porous–porous and the new slot–porous tuyeres, mainly focusing on the mixing behavior and inclusion removement ratio. The results show that, for traditional porous–porous matched tuyeres (P-P mode), the inclusion removement ratio is 34.14%; by comparison, after employing the slot–porous matched tuyeres (S-P mode), the inclusion removements ratio rises to 36.34%. The mixing time is also shortened by 18.74% by using the S-P mode. The reason for this phenomenon is because the slot tuyere produces a strong asymmetry that drives more liquid at the bottom of the ladle. The new tuyere match takes advantage of porous and slot tuyeres, and the mixing behavior and inclusion removements are improved. The result is beneficial for future refining. |
| first_indexed | 2024-03-11T04:44:32Z |
| format | Article |
| id | doaj.art-556d6c8fa4c34ee093f3de8285927d19 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T04:44:32Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-556d6c8fa4c34ee093f3de8285927d192023-11-17T20:25:57ZengMDPI AGMetals2075-47012023-03-0113466710.3390/met13040667Investigation on the Alloy Mixing and Inclusion Removement through Using a New Slot-Porous Matched TuyeresXianglong Li0Huihua Wang1Jun Tian2Deyong Wang3Tianpeng Qu4Dong Hou5Shaoyan Hu6Guangjun Wu7School of Iron and Steel, Soochow University, Suzhou 215137, ChinaSchool of Iron and Steel, Soochow University, Suzhou 215137, ChinaSchool of Iron and Steel, Soochow University, Suzhou 215137, ChinaSchool of Iron and Steel, Soochow University, Suzhou 215137, ChinaSchool of Iron and Steel, Soochow University, Suzhou 215137, ChinaSchool of Iron and Steel, Soochow University, Suzhou 215137, ChinaSchool of Iron and Steel, Soochow University, Suzhou 215137, ChinaLaiwu Technique Center, Shandong Iron & Steel Group Company Limited, Jinan 271104, ChinaA mathematical model was developed to investigate the refining process through using slot-porous matched dual tuyeres. In this model, the bubble expansion is considered through the ideal gas state equation. The density variation of bubbles is calculated through the mass conservation equation. The coalescence and breakup of bubbles are tracked using the discrete particle model (DPM). The transient flow is computed through the k-ε model with three continuous phases (air–slag–steel). Comparisons were made between traditional porous–porous and the new slot–porous tuyeres, mainly focusing on the mixing behavior and inclusion removement ratio. The results show that, for traditional porous–porous matched tuyeres (P-P mode), the inclusion removement ratio is 34.14%; by comparison, after employing the slot–porous matched tuyeres (S-P mode), the inclusion removements ratio rises to 36.34%. The mixing time is also shortened by 18.74% by using the S-P mode. The reason for this phenomenon is because the slot tuyere produces a strong asymmetry that drives more liquid at the bottom of the ladle. The new tuyere match takes advantage of porous and slot tuyeres, and the mixing behavior and inclusion removements are improved. The result is beneficial for future refining.https://www.mdpi.com/2075-4701/13/4/667inclusionbubbletuyeremixingladle |
| spellingShingle | Xianglong Li Huihua Wang Jun Tian Deyong Wang Tianpeng Qu Dong Hou Shaoyan Hu Guangjun Wu Investigation on the Alloy Mixing and Inclusion Removement through Using a New Slot-Porous Matched Tuyeres Metals inclusion bubble tuyere mixing ladle |
| title | Investigation on the Alloy Mixing and Inclusion Removement through Using a New Slot-Porous Matched Tuyeres |
| title_full | Investigation on the Alloy Mixing and Inclusion Removement through Using a New Slot-Porous Matched Tuyeres |
| title_fullStr | Investigation on the Alloy Mixing and Inclusion Removement through Using a New Slot-Porous Matched Tuyeres |
| title_full_unstemmed | Investigation on the Alloy Mixing and Inclusion Removement through Using a New Slot-Porous Matched Tuyeres |
| title_short | Investigation on the Alloy Mixing and Inclusion Removement through Using a New Slot-Porous Matched Tuyeres |
| title_sort | investigation on the alloy mixing and inclusion removement through using a new slot porous matched tuyeres |
| topic | inclusion bubble tuyere mixing ladle |
| url | https://www.mdpi.com/2075-4701/13/4/667 |
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