| PMC精矿粉细磨粒度对球团质量的影响 |
| |
| 引用本文： | 田野,吕庆,刘小杰,郄亚娜,李建鹏. PMC精矿粉细磨粒度对球团质量的影响[J]. 矿冶工程, 2017, 37(1): 85-88. DOI: 10.3969/j.issn.0253-6099.2017.01.023 |
| |
| 作者姓名： | 田野 吕庆 刘小杰 郄亚娜 李建鹏 |
| |
| 作者单位： | 华北理工大学 冶金与能源学院 河北省现代冶金技术重点实验室, 河北 唐山 063009 |
| |
| 基金项目： | 国家自然科学基金(U1360205) |
| |
| 摘 要： | 研究了PMC精矿粒度对球团质量的影响, 结果表明：PMC矿粉粒度由0.074 mm变细至0.044 mm, 球团落下强度由3.90次/0.5 m增大到4.25次/0.5 m, 抗压强度由7.42 N/个增大到7.62 N/个, 成球率由94.02%下降到87.80%, 爆裂温度由460 ℃降到390 ℃。当预热时间15 min、预热温度925 ℃、焙烧温度1 300 ℃、焙烧时间10 min时, PMC0.044精矿粉球团的抗压强度较PMC0.074精矿粉球团的抗压强度有显著提高。
|
| 关 键 词： | PMC矿粉 球团 粒度 焙烧 |
| 收稿时间： | 2016-09-17 |
Effect of Grinding Fineness of PMC on Qualities of Pellets |
| |
| TIAN Ye,LV Qing,LIU Xiao-jie,QIE Ya-na,LI Jian-peng. Effect of Grinding Fineness of PMC on Qualities of Pellets[J]. Mining and Metallurgical Engineering, 2017, 37(1): 85-88. DOI: 10.3969/j.issn.0253-6099.2017.01.023 |
| |
| Authors: | TIAN Ye LV Qing LIU Xiao-jie QIE Ya-na LI Jian-peng |
| |
| Affiliation: | College of Metallurgy and Energy, Hebei Key Laboratory of Modern Metallurgy Technology, North China University of Science and Technology, Tangshan 063009, Hebei, China |
| |
| Abstract: | The effect of grinding fineness of PMC on green pellet quality was studied. Results show that, with its grinding fineness decreasing from 0.074 mm to 0.044 mm, the drop number of pellet increases from 3.90 times/0.5 m to 4.25 times/0.5 m, compression strength increases from 7.42 N/a to 7.62 N/a, while pelletizing rate decreases from 94.02% to 87.80% and cracking temperature decreases from 460 ℃ to 390 ℃. It is found that having been preheated at a temperature of 925 ℃ for 15 min and roasted at 1 300 ℃ for 10 min, the pellet of PMC at grinding fineness of 0.044 mm had compression strength improved, compared to the pellet of PMC at fineness of 0.074 mm. |
| |
| Keywords: | PMC pellets particle size roasting |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《矿冶工程》浏览原始摘要信息 |
|
点击此处可从《矿冶工程》下载全文 |
|
