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Iron Ore Separation Process

Iron Ore Separation Process

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Iron Ore Separation Technology

Iron ore separation technology is Magnetic separation. Iron ore separation technology is the use of magnetic removal method of magnetic metal impurities in the material. Iron ore separation technology of iron ore separation process use iron ore and other materials of magnetic differences under the magnetic force and other force choose other process. Usually chose to mineral press than the size of the magnetization coefficient x is divided into four categories: (1) strong magnetic minerals, x > 3000 x 10-9 m3 / kg, there are mainly magnetite, titanium magnetite, magnetic pyrite, etc.; (2) the medium magnetic minerals, x = (600 ~ 3000) x 10-9 m3 / kg, ilmenite, feints and half martite, etc; (3) weak magnetic minerals, x = (15 ~ 600) x 10-9 m3 / kg, mainly hematite, specularite, siderite, limonite, pyrolusite, psilomelane and wolframite, etc; (4) the magnetic minerals, x < 15 x 10 to 9 m3 / kg, scheelite, quartz, feldspar, galena, gold and fluorite, etc.

Iron Ore Separation Process

Iron ore separation technology working principle is to choose other material into the iron ore separation after the separation of space technology machine, magnetic and other mechanical force such as gravity, centrifugal force, friction force and resistance of medium etc) work together. The size of the magnetic mineral particles by magnetic force is related to magnetic mineral itself; The role of non-magnetic mineral grains mainly by mechanical force. Thus, each moving along different paths, sorting. In general magnetic particles in a magnetic field than the size of the magnetic force is proportional to the intensity of magnetic field and gradient.

Iron Ore Separation Process Instance

Iron ore, the ore iron ore minerals content mainly specularite, siderite and limonite, a small amount of magnetite and pyrite; The gangue minerals are mainly jasper, quartz, barite and ankerite, a small amount of calcite, etc. Surrounding rock mainly for grey green and grey black phyllite, mainly composed of chlorite, sericite, quartz and iron content, composition complex, fine disseminated extent relatively, and uneven thickness, ore is difficult to choose. Ore in production (75-15 mm) using roasting iron ore separation technology processing, powder ore (15 mm) by using iron ore separation technology processing, iron ore separation technology and equipment for Jones type iron ore separation technology. Through the production process and equipment improvement and innovation for many times, strong iron ore separation technology system original design USES two continuous grinding, strong magnetic one roughing and one scavenging process powder ore processing. Due to continuous grinding, two pieces in a grinding has iron ore content of monomer dissociation into the second period of grinding, caused by crushing, affect the metal recovery. Our experts according to the nature of the ore, after a lot of research, and the strong iron ore separation technical process of the technical innovation, strong iron ore separation technology to increase secondary scavenging, formed two grinding, fine screen classification, strong magnetic one roughing and two of scavenging process, make the metal recovery rate is increased sharply, metal recovery had the very big enhancement. System USES high gradient permanent magnetic iron ore separation technology for process optimization, machine under the condition of the concentrate grade remains unchanged, iron recovery increased, lower concentration ratio. Advantages of the process to take full advantage of the characteristics of minerals disseminated extent of uneven thickness, reducing energy consumption. At the same time, a large number of lower secondary fine grinding, grinding load production easily meet the requirements.

Application Of Iron Ore Separation Technology

Iron ore separation technology is a widely used method of ore dressing. All lean magnetite ore by weak magnetic iron ore separation technology processing. Commonly used permanent magnet drum iron ore separation technology for two machine segment; The first paragraph under the coarse grinding part discarding gangue mineral, and secondary income rough concentrate. Magnetite ore after crushing, also can use magnetic pulley primary rule out massive gangue and mining into the surrounding rock. Weak magnetic hematite ore, can be directly with strong magnetic iron ore separation technology pause; Or after magnetization roasting, with weak magnetic iron ore separation technology don’t pause. The majority of manganese content and wolframite are available strong magnetic iron ore separation technology don’t pause.

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