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Click to add WeChatManganese ores can be mainly divided into manganese oxide ores and manganese carbonate ores< according to their different ore properties. /strong>Two kinds.
Manganese oxide ore:This type of mineral is mainly based on secondary manganese oxide from weathered ore deposits. Secondly, there are also some sedimentary and thermal minerals. Liquid primary and secondary manganese oxide minerals. Its ore types include duronite, pyrolusite and hydromanganite. Common gangue minerals are mainly silicate and carbonate, often accompanied by iron, phosphorus, nickel, Cobalt and other minerals.
Manganese carbonate ore:This type of manganese ore is mostly sedimentary rock type manganese minerals, often including rhodochrosite, rhodochrosite, manganese-containing calcite, rhodochrosite, etc., gangue minerals They are also silicate and carbonate minerals, often accompanied by impurities such as sulfur and iron. This type of manganese ore has more complex ore properties and is more difficult to beneficiated.
Whether it is manganese oxide ore or manganese carbonate ore, they are all in the form of fine-grained inlays, and contain a considerable amount of high phosphorus, high iron and cobalt. /Associated beneficial metal minerals are difficult to sort. At present, the commonly used mineral processing processes mainly include: washing and screening method, gravity separation method, strong magnetic separation method, flotation method, combined mineral processing method, leaching method and fire enrichment method, etc.
Ore washing and screening for manganese separation: The ore washing part mainly uses hydraulic flushing or additional mechanical scrubbing to make the ore and The mud is separated. Usually, the washing operation is accompanied by the screening operation, such as directly flushing water on the vibrating screen or sending the ore (clean ore) obtained by the washing machine to the vibrating screen for screening. Screening can be used as a stand-alone operation to separate products of different particle sizes and grades for different uses.
Gravity separation of manganese:Generally, gravity separation is only suitable for simple structures and relatively small embedded particle sizes. Coarse manganese minerals, especially dense manganese oxide minerals. Commonly used gravity separation methods include Dense media beneficiation, Jig beneficiation and Shaking table beneficiation. The process is: crush the ore to 6-0mm or 10-0mm, and then carry out grading. The coarse-grade particles are sent to jig sorting, while the fine-grade particles are sent to Go to the shaker for selection.
Strong magnetic separation of manganese ore:Manganese ore is a weakly magnetic mineral. Using strong magnetic separation to separate manganese can achieve better recovery. If magnetic separation is added to the combined mineral processing process It can increase manganese grade by about 4%-10%.
Flotation manganese ore:Using sodium petroleum sulfonate instead of oxidized paraffin soap as the collector, the slurry can be separated at neutral and normal temperatures, saving chemical consumption and energy consumption.
Leaching manganese beneficiation:There are several methods: direct leaching, roasting leaching and biological leaching. Among them, direct leaching It also includes dithionate method, sulfur dioxide method, ferrous sulfate method, etc.
Pyrochemical enrichment and separation of manganese: Suitable for processing poor manganese ores with high phosphorus and high iron content that are difficult to be separated. The temperature is controlled in the electric furnace to selectively separate manganese, phosphorus and iron.
As the manganese ore beneficiation method is introduced above, then the relevant manganese ore beneficiation equipment will be introduced based on its ore beneficiation method.
Manganese ore magnetic separation equipment:The commonly used equipment for manganese ore magnetic separation is mainly strong magnetic separation equipment, including high gradient magnetic separator, Wet type strong magnetic separator and dry type strong magnetic separator.
Manganese ore and tin ore screening equipment:Commonly used ore washing equipment includes ore washing screens, round There are several types of drum washing machines and trough washing machines. The main screening equipment include: circular vibrating screen, linear vibration, etc.
Manganese ore gravity separation equipment: Common manganese ore gravity separation equipment mainly includes heavy medium cyclones, jigs and shakers.
Manganese ore flotation equipment: There are two types: Mechanical agitation flotation machine and Inflatable agitation flotation machine. Among them, the mechanical stirring type is mainly SF type, JJF type and BF type; the inflatable stirring type is XCF type, KYF type and XCF-KYF combination type.
The above are the ore types of manganese ore, manganese ore beneficiation methods and manganese ore beneficiation Introduction of equipmentIn the actual mineral processing process, how to choose a suitable process flow needs to be determined according to the mineral processing test analysis, because there are differences in each type of manganese ore. Through experimental analysis, a suitable mineral processing process plan can be designed for it. And suitable mineral processing equipment is necessary.
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