Rare earth composite ceramic materials (RE/CM) were prepared by the method of firing the mixtures of the rare earth elements, polar crystal mineral materials and clays. The effects of processing method on the reducing...Rare earth composite ceramic materials (RE/CM) were prepared by the method of firing the mixtures of the rare earth elements, polar crystal mineral materials and clays. The effects of processing method on the reducing exhaust emissions were studied. The results show that after dealt with the ceramic balls, the surface tension of gasoline, and the CO concentration among exhaust emissions during combustion, decrease by 2.7% and 11.5%, respectively; however the temperature of the inner flue increases by 4.8%.展开更多
都龙矿区是我国一座含有大量共伴生稀贵金属的大型锌锡铜复杂多金属矿床。矿石成分复杂,嵌布粒度细,细磨是实现较高的精矿品位和回收率的关键。目前,矿区选厂采用特种钢球作为细磨的介质,存在负荷大、能耗高,细度达不到工艺技术要求等问...都龙矿区是我国一座含有大量共伴生稀贵金属的大型锌锡铜复杂多金属矿床。矿石成分复杂,嵌布粒度细,细磨是实现较高的精矿品位和回收率的关键。目前,矿区选厂采用特种钢球作为细磨的介质,存在负荷大、能耗高,细度达不到工艺技术要求等问题,为此,开展了纳米陶瓷球在复杂多金属矿铜粗精矿细磨的应用研究。研究结果表明,纳米陶瓷球有效的提升了磨矿效率,铜粗精矿再磨细度达到了-0.037 mm 占80%以上,且无铁离子干扰,很好地改善了选矿指标。在原矿含铜略有下降的前提下,铜精矿品位提高1%,铜精矿回收率提升6%。同时,球耗、能耗下降明显,球耗仅为轴承钢球的六分之一、电耗可节约24%。每年可为公司增效1 000多万元。展开更多
文摘Rare earth composite ceramic materials (RE/CM) were prepared by the method of firing the mixtures of the rare earth elements, polar crystal mineral materials and clays. The effects of processing method on the reducing exhaust emissions were studied. The results show that after dealt with the ceramic balls, the surface tension of gasoline, and the CO concentration among exhaust emissions during combustion, decrease by 2.7% and 11.5%, respectively; however the temperature of the inner flue increases by 4.8%.
文摘都龙矿区是我国一座含有大量共伴生稀贵金属的大型锌锡铜复杂多金属矿床。矿石成分复杂,嵌布粒度细,细磨是实现较高的精矿品位和回收率的关键。目前,矿区选厂采用特种钢球作为细磨的介质,存在负荷大、能耗高,细度达不到工艺技术要求等问题,为此,开展了纳米陶瓷球在复杂多金属矿铜粗精矿细磨的应用研究。研究结果表明,纳米陶瓷球有效的提升了磨矿效率,铜粗精矿再磨细度达到了-0.037 mm 占80%以上,且无铁离子干扰,很好地改善了选矿指标。在原矿含铜略有下降的前提下,铜精矿品位提高1%,铜精矿回收率提升6%。同时,球耗、能耗下降明显,球耗仅为轴承钢球的六分之一、电耗可节约24%。每年可为公司增效1 000多万元。
