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内配碳铁铌共生矿冷固结球团强度实验研究
Experimental Study on Strength of Cold-bound Pellets of Carbon-dosing Nb-Fe Associated Ore
【摘要】 采用聚乙烯醇为粘结剂,对内配碳铁铌共生矿冷固结球团强度进行了研究,分别考察了球团碳氧比、成形压力、粘结剂浓度及烘干温度对干湿球强度的影响。结果表明,在碳氧比1.0、成形压力15MPa、粘结剂浓度3.0%及烘干温度100℃条件制备球团,得到的干湿球强度均最大。
【Abstract】 The strength of cold-bound pellets of carbon-dosing Nb-Fe associated ore was studied using polyvinyl alcohol as the binder.The influences of carbon to oxygen ratio in pellets,compacting pressure,binder concentration and drying temperature on the strength of green and roasted pellets were investigated.The results show that the strength of both dry and wet pellets is maximum at carbon to oxygen ratio 1.0,compacting pressure 15 MPa,binder concentration 3%,roasting temperature 100 ℃.
【关键词】 铁铌共生矿；
冷固结球团；
内配碳；
强度；
【Key words】 Nb-Fe associated ore； cold-bound pellet； carbon-dosing； strength；
【Key words】 Nb-Fe associated ore； cold-bound pellet； carbon-dosing； strength；
【基金】 国家“十一五”科技支撑计划项目(2008BAB32B07);国家自然科学基金项目(50964011)
- 【文献出处】 稀有金属与硬质合金 ,Rare Metals and Cemented Carbides , 编辑部邮箱 ,2012年02期
- 【分类号】TF046.6
- 【被引频次】5
- 【下载频次】164