Operational lifetime increase of the pumping equipment when pumping-out contaminated groundwater

Purpose. Solving the problem of increasing pumping equipment operational lifetime when pumping-out contaminated groundwater in iron-ore industry by extracting hard, abrasive part, using magnetic filters based on permanent ferrite magnets. Methods. To produce spherical hard-magnetic elements that catch finely-dispersed and weakly-magnetic particles industry, barium powder BaО∙6Fe2O3 is applied, which usually used for obtaining ferrites. Spherical filling a filtering installation are obtained method spheroidizing dragee machine. Sintering granules from conducted high-temperature atmospheric electric box furnace. The sintered made magnetized pulsed toroidal-shaped setup constant field. Findings. For continuous purification magnetic, non-magnetic highly with help filters, scheme two sections pro-posed. A technology producing magnets has been developed installation, includes coarse column hollow-spherical 16-17 mm diameter fine full-bodied 6-7 diameter. Originality.The term operation doubled if to eliminate wear due two-section In case changing filter, idle time reduced supplementary auxiliary column. possibility processing filtration products their use field construction metallurgy without environmental pollution substantiated. Practical implications. proposed, consisting particles. different diameters ensure quality process. research results allow increase eliminating wear, will lead significant savings replacement repair centrifugal pumps. Keywords: equipment, groundwater, ferrite, magnet,