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山东金岭矿业股份有限公司选矿厂是一家拥有60多年选矿经验的大型企业,年处理铁精粉110多万吨,破碎作业采用两段破碎,磨矿系统由6台MQG2700×2100湿式格子型球磨机和6台2FLG-1500高堰式双螺旋型分级机组成,其采用一段闭路磨矿—分级流程。由于特有的矿石成分,能够比较经济地把矿石磨到选别所要求的粒度。其一段磨矿流程的主要优点是:分级机的数目较少,投资较低,生产操作简单;没有段和段之间的产物运输,节约了成本。在生产能力不断提高的情况下,由于选矿厂设备落后,一直使用20世纪70年代仿前苏联制造的球磨机,生产效率低,设备故障发生较频繁,其整体性能
Shandong Jinling Mining Co., Ltd. concentrator is a large-scale enterprise with more than 60 years dressing experience. It processes more than 1.1 million tons of fine iron powder each year and uses two stages of crushing operation. The grinding system consists of 6 sets of MQG2700 × 2100 wet grid ball mill And 6 2FLG-1500 high weir double helical classifier, which uses a closed-circuit grinding - grading process. Owing to its unique ore composition, the ore can be more economically milled to the desired particle size. The main advantage of the first grinding process is that the number of classifiers is low, the investment is low, and the production and operation are simple. There is no product transportation between sections and sections and the cost is saved. In the case of continuous improvement of production capacity, due to the backward facilities in the concentrator, ball mills manufactured in the 1970s in the former Soviet Union have been used, which have low production efficiency and frequent equipment failures. Their overall performance