捣固焦微观结构研究
结合捣固炼焦工艺的特点，研究了高堆积密度配煤炼焦对焦炭微观结构的影响．结果表明，捣固炼焦工艺对焦炭气孔结构影响明显．采用N：吸附法研究发现，9种捣固焦以小于10nm的中、小气孔为主，平均气孔直径小，比表面积分布广泛；3种顶装焦存在一定数量20—50nm的中孔，平均气孔直径大，比表面积小．捣固焦总气孔率、显气孔率和显气孔比例基本均低于顶装焦，捣固焦的假密度明显高于顶装焦，真密度相差不大，假密度可作为区分捣固焦与顶装焦的简易方法．焦炭光学组织主要取决于配合煤性质，捣固焦与顶装焦无明显区别．...
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| Published in | 东北大学学报（自然科学版） Vol. 37; no. 1; pp. 64 - 68 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
北京科技大学冶金与生态工程学院,北京,100083%河北钢铁集团唐山钢铁股份有限公司,河北唐山,063020%北京科技大学钢铁冶金新技术国家重点实验室,北京,100083
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1005-3026 |
| DOI | 10.3969/j.issn.1005-3026.2016.01.014 |
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| Summary: | 结合捣固炼焦工艺的特点，研究了高堆积密度配煤炼焦对焦炭微观结构的影响．结果表明，捣固炼焦工艺对焦炭气孔结构影响明显．采用N：吸附法研究发现，9种捣固焦以小于10nm的中、小气孔为主，平均气孔直径小，比表面积分布广泛；3种顶装焦存在一定数量20—50nm的中孔，平均气孔直径大，比表面积小．捣固焦总气孔率、显气孔率和显气孔比例基本均低于顶装焦，捣固焦的假密度明显高于顶装焦，真密度相差不大，假密度可作为区分捣固焦与顶装焦的简易方法．焦炭光学组织主要取决于配合煤性质，捣固焦与顶装焦无明显区别． |
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| Bibliography: | 21-1344/T GAO Bing , ZHANG Jian-liang , KONG De-wen,ZUO Hai-bin （ 1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2. Tangshan Iron ＆ Steel Co., Ltd., Hebei Iron ＆ Steel Group, Tangshan 063020, China; 3. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China. Corresponding author： GAO Bing, E-mail： sjzgaobing@ 163. com. ） Applying the stamp charging technology, the effect of high-bulk-density coal blending on the microstructure of coke was investigated. The results showed that the pore structure of coke was greatly influenced by the stamp charging technology. The pore structure of cokes was examined by using N2 adsorption technology. All 9 kinds of stamp charging coke contained mainly medium and small pores whose sizes were less than 10 nm. The mean pore diameter was small and the specific surface area distributed widely. However, 3 kinds of top charging coke all contained a certa |
| ISSN: | 1005-3026 |
| DOI: | 10.3969/j.issn.1005-3026.2016.01.014 |