| abstract |
Vertical ring magnetic separator for debarking coal ash comprises a rotating ring (101), an inductive medium (102), an upper iron yoke (103), a lower iron yoke (104), a magnet excitation coil (105), a supply port (106) Outlet vessel (107) and a water washing device (109). The feed port (106) is used to feed the coal ash to be de-ice, and the discharge vessel (107) is used to discharge the non-magnetic particles after defrosting. The upper iron yoke (103) and the lower iron yoke (104) are respectively disposed on the inner and outer sides of the lower portion of the rotating ring (101). The water washing device (109) is disposed above the rotating ring (101). The inductive medium (102) is disposed in the rotating ring (101). The magnet excitation coil (105) is disposed on the circumference of the upper iron yoke (103) and the lower iron yoke (104) to cause the upper iron yoke (103) and the lower iron yoke (104) to form a pair of magnetic poles for generating a magnetic field the vertical direction, wherein the inductive medium (102) consists of layers of steel fabric, wherein each steel fabric is woven with wires, and wherein ridge-shaped sharp corners are formed at the edges of the wires. A method for magnetically separating and de-ironing coal ash employs the vertical ring magnetic separator for defrosting coal ash. By ... |