Magnetic separation of manganese oxide ore

Most are manganese oxide ore deposits Eluvial secondary ore, soft texture, containing more clay minerals, the mining of clay and easy handling process, the clay content is usually 20% to 70%, in order to improve ore The manganese-containing grade and improved crushing, sieving, beneficiation and transportation conditions all require washing. Coarse grain 5mm Above) sorting by retreading and other re-election methods, fine 5mm The following) can be separated by a strong magnetic separation method.

The pre-miao mining area of ​​Liancheng manganese mine in Fujian Province is a weathering crust-manganese-manganese deposit, which is divided into leaching type, slope type and leaching and slope type mixing type, mainly leaching type. The main ore minerals are hard metal manganese ore, manganese ore, manganese soil and brown iron ore and other gangue minerals are dominated by quartz, followed by sericite, opal, barite, other impurities are mainly loess, clay.

The ore process is a washing-jigging-strong magnetic separation process. Broken to 70mm After the following, first wash the mine, sieve classification , + 30mm Hand selection, 4. 5 ~ 30mm ore is re-elected with A M - 30 jig, -4.5mm The granules were sorted using a Q C - 200 induction roll type strong magnetic field magnetic separator. The strong magnetic input grade is 35.68% , the concentrate grade is 41.23% , and the recovery rate is 93.6% .

The SPH type strong magnetic separator is also used for the magnetic separation of manganese oxide ore.

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