期刊文献+

高压辊磨预处理对超细粒度磁铁精矿粉球团性能的影响 被引量:17

Effect of High Pressure Roll Grinding on Pellet Property of Super-Fine Magnetite Concentrate
原文传递
导出
摘要 某磁铁精矿粉粒度虽然非常细,小于0.044mm的比例达到88%,但由于该矿粉颗粒形貌为板状、片状结构,故为中等成球性能矿粉。采用高压辊磨对该矿粉进行预处理后,其颗粒形貌发生很大变化,造球性能得到改善,膨润土单耗降低,但生球爆裂温度有下降趋势;高压辊磨预处理铁矿粉后,对改善预热球团矿的抗压强度效果不明显,但成品球团抗压强度得到提高。研究结果表明,高压辊磨预处理对细粒度磁铁精矿粉的造球性能及成品球强度有明显的改善效果。 For one kind of super fine magnetite concentrate with about 88% of particle size less than 0.044 mm,its ballability was middle classs because of plate and plate-like structure.However,particle morphology of concentrates was changed and balling performance was improved after concentrates pretreated by HPRG,which resulted in the decrease of the bentonite addition rate and breakdown temperature of green pellets.The results show that the compression strength of finished pellets increases markedly after pretreated by HPRG,but no obvious effect is observed on the changes of compression strength of preheated pellets.The whole experiment indicates that the balling performance can be improved and compression strength of finished pellets can be increased after the super fine magnetite concentrate pretreated by HPRG.
出处 《钢铁》 CAS CSCD 北大核心 2012年第9期19-24,共6页 Iron and Steel
关键词 磁铁矿粉 高压辊磨 造球性能 抗压强度 球团矿 magnetite concentrate high pressure roll grinding balling performance compression strength pellet
  • 相关文献

参考文献11

  • 1Abdel-Zaher M Abouzeid,Dougls W Fuerstenau. Grinding of Mineral Mixtures in High-Pressure Grinding Rolls[J].International Journal of Mineral Processing,2009,(93):59.
  • 2Fuerstenau D W,Abouzeid A-Z M. Role of Feed Moisture in High-Pressure Roll Mill Comminution[J].International Journal of Mineral Processing,2007,(82):203.
  • 3Wills B A,Napier-Mum T J. Wills' Mineral Processing Technology[M].Changsha:Central South University Press and Elsevier Ltd,2008.
  • 4Tavares L M. Particle Weakening in High-Pressure Roll Grinding[J].Minerals Engineering,2005,(18):651.
  • 5Fuerstenau D W,Shukl A,Kapur P C. Energy Consumption and Product Size Distribution in Choke-Fed,High-Compression Roll Mills[J].International Journal of Mineral Processing,1991,(32):59.
  • 6Fuerstenaua D W,Deb A,Kapure P C. Linear and Nonlinear Particle Breakage Processes in Comminution Systems[J].Miner Process,2004,(745):317.
  • 7Lim I L,Voigt W,Weller K R. Particles Size Distribution and Energy Expenditure in Grinding Minerals and Ores in High-Pressureroll Mills[J].International Journal of Mineral Processing,1996,(44):539.
  • 8赵艳虎;武瑞华.200万吨球团造球工艺优化实践[J]邯钢科技,2008(02):21.
  • 9吴文和;舒方华.巴西赤铁精矿在500万吨团生产中的应用[J]球团技术,2008(04):17.
  • 10傅菊英;朱德庆.铁矿氧化球团基本原理、工艺及设备[M]长沙:中南大学出版社,2005.

同被引文献199

引证文献17

二级引证文献71

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部