Manganese ore processing Plant

Manganese ore processing methods consist of ore washing and sieving, gravity separation, strong magnetic separation, flotation, pyrogenicprocess beneficiation and chemical dressing method, etc. These methods can finish dressing process very well and are popular among our customers.

Manganese ore processing flow chart

Ore washing and sieving

Ore washing is the method that utilizes hydraulic flushing and additional mechanical scrubbing to separate the ores from mud.

Ore washing often goes with sieving. For example, using water washing the ores directly on the vibrating screen, or sending the clean ores that come out of ore washing machine to vibrating screen. Sieving can be regarded as independent operation to classify the products with different particle size and grade which will be supplied to different purposes.

Gravity separation

Gravity separation is used for selecting manganese ores with simple structure and thick disseminated grain size, such as oxidation manganese ore stone with large density. Commonly used processes are heavy medium ore dressing, jig dressing and shaking table dressing.

Generally, this process is that: the ores are crushed until the grain size reaches ６～０mm or１０～０mm, then grouped. The ores with large grain size go through jigging and the ores with small grain size are sent to shaking table for shaking table dressing.

Strong magnetic separation

Magnetic separation features simple operation, easy controlling, and strong flexibility. In recent years, strong magnetic magnetic separation is the main method among manganese ore dressing. All kinds of new thick, medium and fine grain magnetic separators are successfully developed. The most common separator is medium grain strong magnetic separator. The thick or fine grain magnetic separator are also gradually got used. The microgranular strong magnetic separator is still at the experimental stage.

Heavy-intensity magnetic separation:

This process is mainly used for processing leaching type oxidation manganese ore stone. AM-３０ jigger is used to process the washed ores whose size is between 30mm and 3mm so that the manganese ore concentrate with good quality and high manganese content(>40%). Through hand picking to remove impurities, the ores can be used as battery manganese powder materials. Jig tailings and the washed ores that the size is under 3mm will be ground until the size is under 1m. Then they will be selected by strong magnetic separator. The grade of manganic concentrates should be improved 24%--25% so that the grade can reach 36%--40%.

Strong magnetic-flotation process:

The test of strong magnetic-flotation process succeed and this process is utilized in production. Strong magnetic separation is using shp-2000 strong magnetic separator. Flotation device is mainly using CHF inflatable flotation device, which features with good performance and is suitable for manganese ore dressing.

Pyrogenicprocess beneficiation(Manganese residue enrichment method)

Pyrogenicprocess beneficiation of manganese ore, is a kind of dressing methods to process poor manganese ore stones which have high phosphorus content and high ferrum content but is hard to be dressed. Pyrogenicprocess beneficiation features with simple operation and stable production. It can remove the phosphorus and ferrum out of the ores effectively so that we can get rich manganese residue with rich manganese, low ferrum and low phosphorus.

Manganese ore processing devices

Ore washing: the common equipments are ore washing screen, cylinder ore washing machine and chute ore washing machine.
Sieving: vibrating screen.
Gravity separation: jigger and shaking table.
Strong magnetic separation:: strong magnetic separator.
Flotation process: inflatable flotation device.