Study on flight and collision process of molten blast furnace slag
The mathematical model was established for the flight process of the molten blast furnace slag after the centrifugal graining, and the model was discretely solved by the Runge-Kutta method. The results show that, the flight distance of the slag droplets along the x direction is proportional to the d...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Powder Metallurgy Technology
2022-12-01
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| Series: | Fenmo yejin jishu |
| Subjects: | |
| Online Access: | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2020050018 |
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| author | WANG Kai YI Chui-jie HU Feng-chao ZHAN Sheng |
| author_facet | WANG Kai YI Chui-jie HU Feng-chao ZHAN Sheng |
| author_sort | WANG Kai |
| collection | DOAJ |
| description | The mathematical model was established for the flight process of the molten blast furnace slag after the centrifugal graining, and the model was discretely solved by the Runge-Kutta method. The results show that, the flight distance of the slag droplets along the x direction is proportional to the diameter and the initial velocity of droplets. Due to the air flow resistance and gravity, the velocity of droplets decreases with time, and then increases slightly. Critical impact velocity of the droplets was proposed by analyzing the excess rebound energy of the slag droplets after collision with wall. The results indicate that, the critical impact velocity is an interval, and the larger the droplets, the lower the bounds. The experiments were performed with the initial droplet velocities of 10, 12, and 14 m·s‒1. The results indicate that, the actual falling distance of the slag droplets is greater than the theoretical values, because the initial velocity of the slag droplets is less than the linear velocity of the granulation plate. Meanwhile, the impact velocity of the slag droplets is between the upper and lower bound, thus no adhesion occurs. |
| format | Article |
| id | doaj-art-7a81c4bdadf14b35ac8d5cfe4cb3b09e |
| institution | Kabale University |
| issn | 1001-3784 |
| language | zho |
| publishDate | 2022-12-01 |
| publisher | Editorial Office of Powder Metallurgy Technology |
| record_format | Article |
| series | Fenmo yejin jishu |
| spelling | doaj-art-7a81c4bdadf14b35ac8d5cfe4cb3b09e2024-12-12T03:13:10ZzhoEditorial Office of Powder Metallurgy TechnologyFenmo yejin jishu1001-37842022-12-0140653554010.19591/j.cnki.cn11-1974/tf.2020050018Study on flight and collision process of molten blast furnace slagWANG KaiYI Chui-jieHU Feng-chaoZHAN ShengThe mathematical model was established for the flight process of the molten blast furnace slag after the centrifugal graining, and the model was discretely solved by the Runge-Kutta method. The results show that, the flight distance of the slag droplets along the x direction is proportional to the diameter and the initial velocity of droplets. Due to the air flow resistance and gravity, the velocity of droplets decreases with time, and then increases slightly. Critical impact velocity of the droplets was proposed by analyzing the excess rebound energy of the slag droplets after collision with wall. The results indicate that, the critical impact velocity is an interval, and the larger the droplets, the lower the bounds. The experiments were performed with the initial droplet velocities of 10, 12, and 14 m·s‒1. The results indicate that, the actual falling distance of the slag droplets is greater than the theoretical values, because the initial velocity of the slag droplets is less than the linear velocity of the granulation plate. Meanwhile, the impact velocity of the slag droplets is between the upper and lower bound, thus no adhesion occurs.https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2020050018blast furnace slagflight dynamicscollisionmathematical model |
| spellingShingle | WANG Kai YI Chui-jie HU Feng-chao ZHAN Sheng Study on flight and collision process of molten blast furnace slag Fenmo yejin jishu blast furnace slag flight dynamics collision mathematical model |
| title | Study on flight and collision process of molten blast furnace slag |
| title_full | Study on flight and collision process of molten blast furnace slag |
| title_fullStr | Study on flight and collision process of molten blast furnace slag |
| title_full_unstemmed | Study on flight and collision process of molten blast furnace slag |
| title_short | Study on flight and collision process of molten blast furnace slag |
| title_sort | study on flight and collision process of molten blast furnace slag |
| topic | blast furnace slag flight dynamics collision mathematical model |
| url | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2020050018 |
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