Principle of electro magnetic filter

The principle of the electro magnetic filter is that the liquid to be filtered is filtered through a filter with a magnetic filler inside, and after the completion of the filtering, the iron powder adhering to the filler is rinsed and then filtered, and so on repeatedly Filter and rinse. When the liquid to be filtered circulates in the electromagnetic filter, the electromagnetic coil outside the filter is energized to generate a strong magnetic field, so that the special polymagnetic filter element (filler) in the filter has a strong magnetic force and can absorb Filter the iron powder and other impurities in the liquid. When a cycle is over, the electromagnetic coil in the electromagnetic filter is de-energized, the strong magnetic field of the filter element (filling) in the filter disappears, and the adsorption of iron powder is lost. Then the hot water washes the iron powder filtered by the electromagnetic filter in this cycle into the sludge tank. According to the different internal fillings, electromagnetic magnetic filters can be divided into filler type and magnetic ball type. The filler type electromagnetic filter is equipped with an electromagnetic filler similar to steel wool, and the iron powder adsorbed on the steel wool is separated through the electrification and loss of electricity and the washing process. The spherical filler is arranged inside the magnetic ball electromagnetic filter, and the magnetic ball is magnetized and demagnetized through the electrification and loss of electricity.

Magnetic ball electromagnetic filter is a kind of development and evolution on the basis of filler type (steel wool) electromagnetic filter. With the application of magnetic filter equipment in the emulsion system of cold rolling mills, magnetic filter equipment is also constantly developing With the improvement, the processing capacity and processing effect of the magnetic filter have been greatly improved. It has a better processing effect in the emulsion system of the rolling mill, and has an obvious effect on removing impurities such as iron powder in the emulsion. Stable operation and product surface quality provide a reliable guarantee. At the same time, the magnetic filter has also been widely used in the circulation system of galvanizing, tinning, continuous annealing and other units, and the treatment effect is good. It is an important treatment device that is worthy of promotion and development for the circulation system of the unit.