| 焦炭反应性对高炉炉料熔滴性能的影响 |
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| 引用本文： | 吕庆,王福佳,李豪杰,刘然. 焦炭反应性对高炉炉料熔滴性能的影响[J]. 钢铁, 2016, 51(2): 10-14. DOI: 10.13228/j.boyuan.issn0449-749x.20150144 |
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| 作者姓名： | 吕庆 王福佳 李豪杰 刘然 |
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| 作者单位： | 1.河北联合大学冶金与能源学院，教育部现代冶金技术重点实验室，河北 唐山 063009 2.河钢集团宣钢公司，河北 宣化 075000 |
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| 基金项目： | 国家自然科学基金资助项目(U1360205) |
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| 摘 要： | 利用高温熔滴炉模拟实际高炉软熔带的运行情况，对高炉使用焦炭的热态性能进行分析，探讨了不同反应性的焦炭加入后对炉料软化温度、熔化温度、最大压差，熔滴综合指标等高温物理性能的影响。试验结果表明：随着焦炭反应性的增加，炉料软化开始温度[t10]降低，由1 220降低到1 112 ℃，降低了108 ℃；压差陡升温度[ts]降低，由1 306降低到1 268 ℃，降低了38 ℃；最大压差[Δpmax]增大，由8.62增加到11.05 kPa，料层透气性变差；熔滴综合指标[S]值增大，由680增加到820 kPa·℃，熔滴性能变差。
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| 关 键 词： | 关键词：焦炭 热态性能 高温物理性能 |
| 收稿时间： | 2015-04-01 |
Influence of coke reactivity on dropping performance of furnace burden |
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| Lü Qing,WANG Fu-jia,LI Hao-jie,LIU Ran. Influence of coke reactivity on dropping performance of furnace burden[J]. Iron & Steel, 2016, 51(2): 10-14. DOI: 10.13228/j.boyuan.issn0449-749x.20150144 |
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| Authors: | Lü Qing WANG Fu-jia LI Hao-jie LIU Ran |
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| Affiliation: | 1.College of Metallurgy and Energy，Key Laboratory for Advanced Metallurgy Technology，Ministry of Education，Hebei United University，Tangshan 063009，Hebei，China 2.Xuan Steel Compang，He Steel Group，Xuanhua 075000，Hebei，China |
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| Abstract: | Experiments were carried out in the lab to simulate cohesive zone of blast furnace in a high temperature oven，respectively to discusse the effect on charge softening temperature range， melting temperature range， maximum pressure， droplet comprehensive index and other high temperature physical properties after coke with different reactivity is added. The results showed with coke reactivity enhanced softening temperature[（t10）]were decreased by 108 ℃ from 1 220 ℃ to 1 112 ℃. Renewed pressure temperature[（ts）]were decreased by 28 ℃ from 1 306 ℃ to 1 268 ℃， but the maximum pressure[（Δpmax）]were increased from 8.62 kPa to 11.05 kPa， which resulted in a worse burden permeability. The results also showed， with coke reactivity enhancing dropping integrated indicators([S]value) were increased from 680 kPa·℃ to 820 kPa·℃ and droplet performance got worse. |
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| Keywords: | coke hot performance dropping performance physical properties of high temperature |
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