Effect of magnetic minerals in the machine magnetic separation process

The root causes of minerals generate a magnetic substance is the result of an internal molecular or atomic electrons running The formation of molecular motion of electrons circulation, thus generating a magnetic field Electronic sports side stretch is orbiting around the nucleus; the second is the electronic spin of their own movement Weak magnetic moment produced by the rail, is negligible, while the spin magnetic moment of a strong movement, is a major source of magnetic substances Before nonmagnetized mineral internal magnetic moment orientation disorder, it does not show magnetic properties When placed in a magnetic field is magnetized, the mineral internal magnetic moment consistent orientation, thus showing magnetism Magnetic minerals can be divided into diamagnetic, paramagnetic and ferromagnetic
Magnetic separation process is under external magnetic field by means of an external magnetic field under mineral magnetization size selective separation conditions In mineral magnetic classification, comparison, describing common hysteresis curve and magnetic saturation, remanence, coercivity and other principles explain behavior in magnetic separation of minerals

Mineral magnetic separator has a great influence on the process It should be recycled to the susceptibility of magnetic products in ore particles decision separator (weak or strong magnetic field) to select a magnetic field strength Influence of mineral magnetic separator process are the following:

1 Due to the strong magnetic minerals magnetite and other magnetic strong, they recovered with a lower magnetic field can be achieved
2 Magnetite particles after magnetization will retain the residual magnetism When finegrained particles attract each other to form a magnetic group or magnetic chains Easy to disperse magnetic group, which if they contain gangue particles, it will reduce the quality of magnetic products If there is a magnetic group in grading operations to mine, the classification efficiency is reduced This is the adverse effect of magnetic reunion In this case it can be used to eliminate residual magnetism demagnetizer, magnetic reunion damage
3 The microfine particles of magnetite weak magnetic, magnetic separator while in the water movement suffered greater resistance, and therefore require a larger magnetic force during recovery, and the water is easy to be washed away, causing metal loss Visible, grinding process to minimize excessive wear
4 If the grinding process of monomer dissociation is not enough, there will be even particles raw magnetite and gangue Although more nonmagnetic gangue minerals, but because a strong magnetic magnetite, it is subjected to a magnetic force enough to put even the students and their gangue go to magnetic products, which reduces the quality of magnetic products If you want this part of the living body is separated from the magnetic products, the need to use a fine sieve and then grinding, flotation, reelection or other sorting methods

Product Categories : magnetic minerals