Beneficiation Equipment

Beneficiation Equipment

According to different iron ore types, iron ore beneficiation processes mainly refer to magnetic separation, flotation separation, gravity separation and magnetization-magnetic separation.

Magnetic separation and equipment

Magnetic separation is using magnetic field to separate materials with different magnetic intensity. Magnetic separation is the most popular method used to beneficiate black metal ore. There are two kind of magnetic separation, normal and high density. Normal magnetic separation is adopted to separate magnetite. High density magnetic separation is used to separate hematite and other ore which is weak magnetic.

Flotation process and equipment

Flotation process is also commonly seen in nowadays iron ore beneficiation. It has become a very important way to recover weak magnetic ore. It is also used to treat iron ore fine to reduce the content of silica and impurities. Flotation beneficiation separates ore by different physical and chemical properties of different materials. During the process, we always use chemicals to get better beneficiation results.

Flotation beneficiation separate ore at three physical statuses: gas-liquid-solid. The ore slurry enters the mixing bucket first. After the slurry is mixed thoroughly with chemicals, it is sent into the flotation machine. With water and gas fed into the flotation machine, along with the slurry, there will be bubbles generated. The bubbles take the parts which is valuable to us out of the slurry. And the rest is tailing.

Gravity separation and equipment

The gravity separation separates ore parts with different density. Gravity separation is also one of the most popular ore beneficiation methods. It is widely used in weight metal ore beneficiation, especially weak magnetic iron ore.

Magnetization-magnetic separation process and equipment

Magnetization is a chemical reaction used in hematite beneficiation. It transform Fe2O3 (weak magnetic) into Fe3O4 (strong magnetic). After magnetization, we can use magnetic separation.

Hematite, limonite, siderite and iron pyrites is very weak magnetic. We cannot use normal magnetic separation to beneficiate. We have to magnetize them first. And then, we can use normal magnetic separation.

Magnetization is a rather complicated process. There are many factors that can affect the effect of the reaction. Actually, calcinations can either reduce the iron ore or oxidize the iron ore.

Description of beneficiation equipment:

The equipment of mining production line cover feeder, crusher, ball mill, classifier, vibrating screen, rocking bed, magnetic separator, mix tank, flotation machine and so on.

The specific mineral beneficiation flow is as follows:

The extracted ore should be crushed by jaw crusher initially. When it gets the reasonable fineness, it is transported into ball mill by elevating conveyer and feeder, and is milled by ball mill. The subtle milled ore gets the next procedure: Classification. There is a theory that if the weights of solid particles are different, the sedimentations will be different, and the mixed ore can be classified by screw classifier.

The classified ore gets into magnetic separator. Since the specific magnetization coefficients of ores are different, the magnetic substance of mixed ore is separated from others with magnetic and mechanical force. The mineral matter, which has been separated by magnetic separator initially, is transported into flotation machine by conveyer, and different medicines are added according to different characteristics of ore, so that the needed ore is separated from others. Since the separated ore are wet, they should be dewatered by thickener initially, and dried by dryer.

The beneficiation Equipment flow produced by our company can provide you with all-around technical support. According to different customers and different mine, my company design different beneficiation complete sets of equipment for you. We can offer complete sets of selecting iron, gold, copper, tungsten, etc equipment. We also offer single machine of above and have supplied complete set mechanical equipment for the clients from all of the world.

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