Magnetic particles in the magnetic field of the magnetic separator, in addition to the role of magnetic force, are also competitive. Competitiveness can be defined as the combined force of all mechanical forces opposite to the direction of the magnetic force, including gravity, centrifugal force, inertial force, and hydrodynamic drag. In the magnetic separation process, the magnetic force is the force for capturing magnetic particles, also known as the magnetic trapping force; the competitiveness is the force that causes the magnetic particles to escape from the magnetic pole, which is also called the disengagement force.
Obviously, the necessary condition for the separation of magnetic particles from non-magnetic particles is that the magnetic particles are subjected to a magnetic force greater than the competitiveness. In order to separate two magnetically different particles, it is necessary that the magnetic force of the stronger magnetic particles should be greater than the competitiveness, and the magnetic force of the weaker magnetic particles should be less than the competitiveness.
It should be noted that in the practice of magnetic separation, it is impossible to have absolutely pure magnetic products and non-magnetic products. Except for the unnaturalized dissociated symbiotic bodies affecting product purity, some monomeric magnetic particles are mixed into non-magnetic products, some of which are non-magnetic. Magnetic particles are mixed into the magnetic product.
In the former case, the recovery rate of the magnetic component is lowered, mainly because the particle size of the magnetic particles is too fine, the magnetic force is insufficient to overcome the competitiveness of the fluid resistance, and the latter case causes the grade of the magnetic product to decrease, and the reason is mostly the particle. There is a strong interaction force, the finer the particle size, the greater the slurry concentration, and the more obvious the interaction force between the particles.
So, what are the possible mistakes in choosing a magnetic separator?
1. It is not necessary to distinguish the magnetic material in the material, and the higher the magnetic field is, the better.
2. A single magnetic separator solves the magnetic substances in a variety of materials.
3. The operating state of the material during magnetic separation and iron removal is not fully considered.
4. A high magnetic field is equal to a high magnetic force.
5. Install magnetic separation and iron removal equipment from a certain point to solve the problem of magnetic pollution of a system.
6. Blind investment, investment is equal to solving the problem.
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