【作者】 苏胜男；

【导师】 朱彤；

【作者基本信息】 东北大学 ， 机械工程， 2007， 硕士

【摘要】 球磨机是矿石磨制作业的主要设备,在有色、黑色、化工、核工业及建材的矿物选矿和加工业中占有重要地位。在中国铝业贵州分公司氧化铝厂配料工序,原有的球磨机和磨矿流程出产的原矿浆在粒度、固含及产能上均达不到后续工序的要求,使之成为氧化铝提产的瓶颈工序。本文在参考球磨机磨矿理论的基础上,结合生产实际,针对格子磨无法满足“单套管预热——高压釜强化溶出”系统指标及高产能要求的难题,从球磨机对铝矿石的磨制原理出发,通过多次实验,认为原有设备无法满足生产需求,必须从球磨机构造入手,提出了改进磨矿工艺流程,改造球磨机结构的设想,用两个磨仓代替两段磨机；取消螺旋分级机,应用旋流器来实现矿浆分级,简化工艺流程,使结构布局紧凑合理；其隔仓板的可调式设计使双仓溢流式球磨机对矿石的适应性强,有利于指标优化。氧化铝厂按以上方案试制双仓磨矿系统应用于生产中,并就隔仓板安装位置对出磨粒度的影响进行了工业实验。通过两年的实践证明,双仓溢流式球磨机磨矿系统满足了“单套管预热—高压釜强化溶出”对矿浆指标及磨机产能的要求,与原有磨矿系统相比,具有工艺流程简单、磨机结构紧凑、节能效果显著、运行维护费用降低的优点。更多还原

【Abstract】 Ball mill, the main equipment in grinding ore, plays an important role in selecting and reproducing non-ferrous, black ore, chemical ore and ore used for nuclear industry and construction. It is also widely used in coal, electric power and other fields.In the process of material matching in Alumina Factory of Guizhou Branch of China Aluminum Corporation, the raw ore magma, produced be the original ball mill through the original flowsheet of grinding circuit can not meet the requirements to size, the proportion of solid and production in processes afterwards. So it has ever been the obstacle to increase production. We in making reference to foundation of triturate theories and combining them with the real production, the technicians in our factory put forward the idea of improving equipments and process in grinding ore as well as reforming the structure of ball mill. Replace two ball mills to with two camaligs, Cancel spiral ratings machine, the applied hydroclone to carry out ore slurries ratings, can simplifying processing process, make structure layout compact reasonableness. They also fried to make equipments and process in production, come to the request of follow-up working procedure at the size, proportion of solid and production ability, In the two-year-long period, they worked hard to solve problems and improve continually, and Circulate a maintenance charge to lower. Two years later, they have proved the project is reasonable in art technique and has good application. Besides, every aspect of it can match the original one in grinding equipment and process. It is the first time for the usage of its design and industry application in Aluminum industry in China, and it has the value of wide introduction and good prospect of use.更多还原