The effect of magnetic field on magnetic separation

1. SHUOSEN The effect of magnetic field on magnetic separation www.shuosencrusher.com

2. APPLICATION OF MAGNETIC SEPARATOR Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Maecenas porttitor congue massa. Fusce posuere, magna sed pulvinar ultricies, purus lectus malesuada libero, sit amet commodo magna eros quis urna. Magnetic separator is widely used in wood industry, mining industry, kiln industry, chemical industry, food and other factories in resource recovery.The magnetic separator is suitable for wet or dry magnetic separation of manganese ore, magnetite, pyrrhotite, roasted ore, ilmenite and other materials with particle size less than 3mm. It is also used for iron removal of coal, non- metallic ore, building materials and other materials.

3. The magnetic system of the magnetic separator, we adopt high-performance permanent magnet king NdFeB materials as the magnetic source, the magnetic intensity of the barrel is 800-12000GS. The effect of magnetic separator magnetic field on magnetic separation The magnetic field generated by the magnetic separator is one of the important factors in the magnetic separation process. According to the different requirements of mineral separation, we need to reliably analyze the magnetic separation equipment and process of the magnetic separator: The magnetic difference of minerals is the basis of magnetic separation.The magnetism of minerals can be measured, according to the degree of its magnetic strength can be divided into three types of minerals: (1) strong magnetic minerals, such as magnetite, pyrrhotite, such minerals are few;(2) weak magnetic minerals, such as hematite, limonite, ilmenite, permanganite, pyrolusite, garnet, such as the number of such minerals more;(3) non-magnetic minerals, most of the non-metallic minerals and non-ferrous metal minerals belong to this category.

4. In the magnetic field of the magnetic separator, strong magnetic minerals are subject to the largest magnetic force, weak magnetic minerals are subject to a small magnetic force, non-magnetic minerals are not subject to magnetic force or weak force. The magnetic field of magnetic separator is a necessary condition for magnetic separation.Magnetic field can be divided into uniform magnetic field and non-uniform magnetic field, the non-uniform degree of magnetic field is expressed by magnetic field gradient, magnetic field gradient is the rate of change of magnetic field intensity along the space, that is, the change of magnetic field intensity per unit length.The greater the magnetic field gradient, the greater the non- uniformity of the magnetic field, that is, the greater the change rate of the magnetic field intensity along the space.The magnitude of magnetic force exerted on a magnetic particle is proportional to the product of magnetic field intensity and magnetic field gradient. If the magnetic field gradient is zero (the magnetic field gradient of a uniform magnetic field is zero no matter how strong the magnetic field is), then the magnetic force on the magnetic particle is equal to zero, and the magnetic separation cannot be carried out.Therefore, magnetic washers use uneven magnetic fields.

5. In the process of magnetic separation, ore particles are affected by a variety of forces, in addition to magnetic force, gravity, centrifugal force, force and friction force, etc.When the magnetic force of magnetic particles is greater than the sum of the other forces, it will be sucked out or deviated from the material flow, become magnetic products, the rest is non- magnetic products, to achieve the separation of different magnetic minerals. Shanghai Shuosen Mining Machine Co.,Ltd