Overall Process of Ore Dressing in Mining Industry

The flotation process is controlled by X fluorescence load flow analyzer, automatic ore pulp PH value adjustment, automatic medicine addition, ore level control and air inflation. At present, countries abroad adopt large-scale distributed control system ranging from detection instrumentation to process control. The relative advantages of automatic control compared with those of manual control are higher processing capacity, a 25%-50% labor productivity rise, low cost and high recycle rate. However, we have proven reserves of 53.1 billion tons and potential reserves of 50.1 billion more with industrial reserves accounting for 24.5 billion tons. A large proportion of ore coexists and associates with each other. The lean ore occupies a considerable proportion of 97%. Our nation is rich in iron ore resource. Since rich ore is little, the average geological grade is only 32.6%, lower than the average world level with n percent. Consequently, almost all ores need dressing and enrichment. Moreover, due to the reason that 50% of lean ore is weak magnetic ore, austere challenges are posed to ore dressing work.
The production of ore dressing is a complex process, with the transition and transformation of substance and energy. It has the characteristics of time-variation, large lag, complex mechanism and lots of affecting factors, with the performance of consecution in large range, nonlinearity and tight coupling, which is complex and indeterminate. To a service-oriented brand integrity, as the professional manufacturer of complete sets of mining machinery, like mobile crusher, Henan Hongxing is always doing the best in products and service.mining machine: http://www.hxjqchina.com/n99.html
The product process of raw ores is to sieve the raw ores to the ore fines of 0 to 15mm and ore lumps of over 15mm. the ore fines are sent to the strong magnetic cylindrical ore storage bin by the belt conveyor as the materials of the product of strong magnetic separation. The ore lumps are sent to the bunker in front of the furnace through two-times screening by the belt conveyor as the materials of the roaster.
The process of roast working of the shaft furnace is to send the ores to the shaft furnace to be roasted, which can separate the ores to the waste rocks and valuable ores. The waste rocks are sent to the hillock by the belt conveyor and the winching system, while the valuable ores are sent to the weak magnetic cylindrical ores bin as the product of the materials of weak magnetic separation.
The working process of ore grinding and magnetic separation can be divided into the strong magnetic separation and weak magnetic separation. The primary of the ore grinding system is a closed circuit made by the ball mill and the separator, while the secondary is a closed circuit consisting by the ball mill and the water cyclone. The undersize sieves are embodied in both of the two ore grindings to control the particle sizes feeding the secondary from the first separation. The ore fines or the roasted ores are classified by the classifier after grinded by the ball mills.