| Numerical Simulation on Blast Furnace Operation with Hot Burden Charging | |
| Alternative Title | Numerical Simulation on Blast Furnace Operation with Hot Burden Charging |
| Guo Tonglai; Chu Mansheng; Liu Zhenggen; Wang Hongtao | |
| 2014 | |
| Source Publication | JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
 |
| ISSN | 1006-706X |
| Volume | 21Issue:8Pages:729-736 |
| Abstract | Blast furnace operation with hot burden charging was numerically simulated to preliminarily analyze its advantages and disadvantages. Multi-fluid blast furnace model was utilized to simulate hot burden charging operations under the conditions that the charging temperatures of pellet and coke were supposed separately or simultaneously as 800 degrees C. The results showed that, with hot burden charging, the furnace top temperature significantly increased in comparison to the conventional operation with cold burden charging. However, in-furnace temperature decreased, which decelerated the reduction rate of ferrous burdens. The concentrations of reducing gases were decreased in the furnace. The height of cohesive zone shifted downwards. When the charging temperatures of pellet and coke were simultaneously 800 degrees C (PC800), coke rate, fuel rate and carbon emission rate were decreased by 13. 4, 22. 1 and 19. 25 kg center dot t(-1), respectively. The ratio of ore to coke, solid burden charging rate and hot metal productivity were increased by 4. 79%, 7. 55 kg center dot s(-1) and 6. 38%, respectively. Heat taken away by top gas and energy consumption per ton hot metal were increased by 68. 97% and 6. 40%, respectively. Generally speaking, hot burden charging was adverse to energy utilization of blast furnace. |
| Other Abstract | Blast furnace operation with hot burden charging was numerically simulated to preliminarily analyze its advantages and disadvantages. Multi-fluid blast furnace model was utilized to simulate hot burden charging operations under the conditions that the charging temperatures of pellet and coke were supposed separately or simultaneously as 800 ℃. The results showed that, with hot burden charging, the furnace top temperature significantly increased in comparison to the conventional operation with cold burden charging. However, in-furnace temperature decreased, which decelerated the reduction rate of ferrous burdens. The concentrations of reducing gases were decreased in the furnace. The height of cohesive zone shifted downwards. When the charging temperatures of pellet and coke were simultaneously 800 ℃ (PC800), coke rate, fuel rate and carbon emission rate were decreased by 13.4, 22.1 and 19.25 kg·t~(-1), respectively. The ratio of ore to coke, solid burden charging rate and hot metal productivity were increased by 4.79%, 7.55 kg·s~(-1) and 6.38%, respectively. Heat taken away by top gas and energy consumption per ton hot metal were increased by 68.97% and 6.40%, respectively. Generally speaking, hot burden charging was adverse to energy utilization of blast furnace. |
| Keyword | NATURAL-GAS INJECTION MATHEMATICAL-MODEL OXYGEN FLOW blast furnace hot burden charging multi-fluid theory energy consumption |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Natural Science Foundation of China] ; [Program for New Century Excellent Talents in University of China] |
| CSCD ID | CSCD:5215224 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/143117 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Guo Tonglai,Chu Mansheng,Liu Zhenggen,et al. Numerical Simulation on Blast Furnace Operation with Hot Burden Charging[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2014,21(8):729-736. |
| APA | Guo Tonglai,Chu Mansheng,Liu Zhenggen,&Wang Hongtao.(2014).Numerical Simulation on Blast Furnace Operation with Hot Burden Charging.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,21(8),729-736. |
| MLA | Guo Tonglai,et al."Numerical Simulation on Blast Furnace Operation with Hot Burden Charging".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 21.8(2014):729-736. |
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