ELECTROMAGNETIC FILTER WITH VARIABLE HYDRAULIC RESISTANCE FOR LIQUID ENVIRONMENTS PURIFICATION

The results of investigations of magnetic field distribution in solenoid magnetic filters was shown. Based on researches it was established that the magnetic field induction in the volume of solenoid distributed in such way that the magnetic induction in the near-wall zone in 2-2,5 times more than the induction in the axial zone. The loss of the magnetic field in the «short» solenoids can reach 50% or more. It was set the rational value of geometric simplex L/D at which the magnetization of ferromagnetic nozzle is uniform and the number of areas with low value of magnetic field decreases. A new design of magnetic filter with special channels in which creates a different hydraulic resistance to the liquid medium was proposed. It was shown the calculations of pressure loss in the near-wall and axial zones of magnetic filters and the ratio for determine the parameters of filtering nozzles was calculated. By choosing the optimal speed mode in the near-wall and axial zones, achieves the alignment of purification process conditions, increases absorption capacity of nozzles and effectiveness of purification in general.