Manganese is an important alloying element for steelmaking. It can greatly increase the hardness, strength and wear resistance of steel, and is of great significance to steel production. Naturally mined manganese ore often contains various associated minerals. Mineral processing experiments should be carried out on the ore to find a suitable mineral processing process according to its ore composition and characteristics to avoid economic losses and waste of resources.

At present, the beneficiation methods of manganese ore mainly include washing, screening, gravity separation, strong magnetic separation, flotation, pyrometallurgical enrichment, chemical beneficiation and other methods. However, for some low-grade manganese ores, the existing beneficiation methods are either technically infeasible, economically unreasonable, or both, so these low-grade manganese ores cannot be effectively utilized, which causes a serious waste of resources. For example: there is a manganese oxide ore containing 10% to 20% manganese and 4% to 5% iron in the prior art. The ore properties are complex and the types of gangue minerals are many. The existing beneficiation methods cannot obtain valuable concentrate products. Either the iron content in the manganese concentrate exceeds the standard, or the beneficiation recovery rate is low, which is economically unreasonable. Therefore, this manganese oxide ore cannot be effectively utilized at present.

The weathered low-grade and difficult-to-select manganese ore separation process first removes fine particles from the original ore, controls the particle size of the ore to be selected by pre-screening, and uses a photoelectric waste machine to pre-select the ore to enrich the concentrate and reduce the processing volume of subsequent processes. The crushing process is used instead of the traditional ball milling process, which can minimize the processing capacity of the jigging and shaking table to save energy and reduce production costs.

During manganese ore flotation, the manganese ore needs to be grounded before it can be sorted, and a powdered manganese concentrate is obtained, but a lump manganese concentrate cannot be obtained. The powdered manganese concentrate is less valuable than the lump manganese concentrate, which limits the application scope of the existing manganese ore beneficiation methods.

At present, most of the flotation methods of manganese carbonate ore are limited to laboratory research, and have disadvantages such as complex process flow, poor process adaptability, and high production cost. Therefore, it has not been applied in industrial production. Some manganese ore concentrators that use flotation technology have also switched to other methods such as gravity separation and magnetic separation.

For iron-containing manganese oxide ore, the magnetic separation method cannot separate manganese and iron, which causes the iron impurities in the manganese concentrate to exceed the standard, the quality of the manganese concentrate to be reduced, and it may even be unsalable.

Manganese ore often contains a large amount of extremely low-grade ore mud, which needs to be washed and deslimed in advance. The beneficiation of manganese ore should not be deslimed after grinding, but should be pre-deslimed before grinding. Because the secondary ore mud produced by grinding will increase the manganese loss in the concentrate, and the desliming method of slag screen plus weak magnetic separation and strong magnetic separation is used, the process flow is complicated. There are many types of manganese ores, and even in the same mine, the manganese ores may be diverse. It is difficult to apply only one sorting method to all manganese ores, and the process adaptability is poor.

MINGDER artificial intelligence ore sorting machine and x-ray ore sorting equipment provides a beneficiation method for obtaining massive manganese concentrate, which can obtain high-value massive manganese concentrate. It not only improves the grade of manganese concentrate and manganese recovery rate, and improves beneficiation efficiency, but also is environmentally friendly and pollution-free, has a simple process flow, is easy to operate and manage, and has low production costs, making it suitable for industrial production.