Simplified Calculation Kinetic Model for Solid Metal Melting and Decarburization Process
In this paper, a calculation model for decarburization kinetic in solid metal melting process is studied. Firstly the macro-kinetic model is established, and the melting and decarburization process is divided into five steps, which are adsorption and dissolution of O2, liquid phase mass transfer of...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2015-08-01
|
| Series: | High Temperature Materials and Processes |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/htmp-2014-0045 |
| _version_ | 1818580848396468224 |
|---|---|
| author | Dong Kai Zhu Rong Liu Wenjuan |
| author_facet | Dong Kai Zhu Rong Liu Wenjuan |
| author_sort | Dong Kai |
| collection | DOAJ |
| description | In this paper, a calculation model for decarburization kinetic in solid metal melting process is studied. Firstly the macro-kinetic model is established, and the melting and decarburization process is divided into five steps, which are adsorption and dissolution of O2, liquid phase mass transfer of [C], interfacial reaction of [C] and [O], diffusion of CO gas, and melting and dropping of metal. Secondly based on the assumptions that the total decarburization process is steady at the reaction temperature of 1800 K, the interface reaction is in equilibrium state, the composition in the liquid metal is homogenous, all the activity coefficients are 1 and so on, the calculation model is simplified into equations set with six formulas, and is calculated under 10584 conditions with the help of VB software. Results show that the C or O2 deliverability is the restricted link under different conditions. Finally, a decarburization experiment of melting pig iron at the rate of 0.56 kg/(s·m2) is achieved, and it proves that the simplified calculation model is in uniform with the actual data at a low melting rate. |
| first_indexed | 2024-12-16T07:24:07Z |
| format | Article |
| id | doaj.art-9f8ede93c88c43168d6f24238172f69c |
| institution | Directory Open Access Journal |
| issn | 0334-6455 2191-0324 |
| language | English |
| last_indexed | 2024-12-16T07:24:07Z |
| publishDate | 2015-08-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | High Temperature Materials and Processes |
| spelling | doaj.art-9f8ede93c88c43168d6f24238172f69c2022-12-21T22:39:34ZengDe GruyterHigh Temperature Materials and Processes0334-64552191-03242015-08-0134544745610.1515/htmp-2014-0045Simplified Calculation Kinetic Model for Solid Metal Melting and Decarburization ProcessDong Kai0Zhu Rong1Liu Wenjuan2School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaBeijing Safetech Pipeline Co., Ltd, Beijing 100083, ChinaIn this paper, a calculation model for decarburization kinetic in solid metal melting process is studied. Firstly the macro-kinetic model is established, and the melting and decarburization process is divided into five steps, which are adsorption and dissolution of O2, liquid phase mass transfer of [C], interfacial reaction of [C] and [O], diffusion of CO gas, and melting and dropping of metal. Secondly based on the assumptions that the total decarburization process is steady at the reaction temperature of 1800 K, the interface reaction is in equilibrium state, the composition in the liquid metal is homogenous, all the activity coefficients are 1 and so on, the calculation model is simplified into equations set with six formulas, and is calculated under 10584 conditions with the help of VB software. Results show that the C or O2 deliverability is the restricted link under different conditions. Finally, a decarburization experiment of melting pig iron at the rate of 0.56 kg/(s·m2) is achieved, and it proves that the simplified calculation model is in uniform with the actual data at a low melting rate.https://doi.org/10.1515/htmp-2014-0045calculation kinetic modelsimplified modelmelting and decarburization processeaf steelmaking82.40.-g |
| spellingShingle | Dong Kai Zhu Rong Liu Wenjuan Simplified Calculation Kinetic Model for Solid Metal Melting and Decarburization Process High Temperature Materials and Processes calculation kinetic model simplified model melting and decarburization process eaf steelmaking 82.40.-g |
| title | Simplified Calculation Kinetic Model for Solid Metal Melting and Decarburization Process |
| title_full | Simplified Calculation Kinetic Model for Solid Metal Melting and Decarburization Process |
| title_fullStr | Simplified Calculation Kinetic Model for Solid Metal Melting and Decarburization Process |
| title_full_unstemmed | Simplified Calculation Kinetic Model for Solid Metal Melting and Decarburization Process |
| title_short | Simplified Calculation Kinetic Model for Solid Metal Melting and Decarburization Process |
| title_sort | simplified calculation kinetic model for solid metal melting and decarburization process |
| topic | calculation kinetic model simplified model melting and decarburization process eaf steelmaking 82.40.-g |
| url | https://doi.org/10.1515/htmp-2014-0045 |
| work_keys_str_mv | AT dongkai simplifiedcalculationkineticmodelforsolidmetalmeltinganddecarburizationprocess AT zhurong simplifiedcalculationkineticmodelforsolidmetalmeltinganddecarburizationprocess AT liuwenjuan simplifiedcalculationkineticmodelforsolidmetalmeltinganddecarburizationprocess |