| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to magnetic separation, particularly to vertical circular magnetic separator for removal of iron from coal ash. Proposed separator consists of rotary ring 101, inductor 102, top magnet frame 103, bottom magnet frame 104, magnetic excitation coil 105, feed opening 106, tank for tails 107 and flushing device 109. Opening 106 feed coal ash for removal of iron therefrom while tank 107 serves for removal nonmagnetic particles left after removal of iron. Said top iron magnet frame 103 and bottom magnet frame 104 are arranged at inner and outer sides of lower part of rotary ring 101. Flushing device 109 is arranged above said rotary ring 101. Inductor 102 is arranged inside rotary ring 101. Magnetic excitation coil 105 is located at outer edges of said top iron magnet frame 103 and bottom magnet frame 104 to make a pair of magnetic poles to induce magnetic field in vertical direction where inductor 102 is composed by layers of steel plate cells. Every said cell is braided by wire with sharp prismatic angles. Proposed separator produces magnetic field intensity of at least 15.000 Gs.EFFECT: higher efficiency, lower costs.15 cl, 6 dwg |
