Vertical ring magnetic separator for de-ironing of pulverized coal ash and method using the same

• Main Authors: CHI, JUNZHOU, ZHANG, WENHUI, WEI, CUNDI, ZHANG, JIANMIN, GUO, ZHAOHUA, NAN, QINGAN, LV, SA, XU, SHAONAN, HAN, JIANGUO, WANG, YONGWANG, DONG, HONG
• Format: Patent
• Language: English
• Published: 20.09.2012
• Subjects: MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS; PERFORMING OPERATIONS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; TRANSPORTING

A vertical ring magnetic separator for de-ironing of pulverized coal ash, comprises a rotating ring(101), an inductive medium (102), an upper iron yoke (103), a lower iron yoke (104), a magnetic exciting coil (105), a feeding opening (106), a tailing bucket (107) and a water washing device (109). The feeding opening (106) is used for feeding the pulverized coal ash to be de-ironed, and the tailing bucket (107) is used for discharging the non-magnetic particle after de-ironing. The upper iron yoke (103) and the lower iron yoke (104) are respectively arranged at the inner and outer sides below the rotating ring (101). The water washing device (109) is arranged above the rotating ring (101). The inductive medium (102) is arranged in the rotating ring (101). The magnetic exciting coil (105) is arranged at the periphery of the upper iron yoke (103) and the lower iron yoke (104), so as to make the upper iron yoke (103) and the lower iron yoke (104) to be a pair of magnetic poles for generating a magnetic field in the vertical direction. Wherein, the inductive medium (102) is layers of steel plate meshes, each steel plate mesh is woven by wire peduncles, and ridge-shaped sharp corners are arranged at the edges of the wire peduncles. A method for magnetically separating and de-ironing of pulverized coal ash, utilizes the vertical ring magnetic separator for de-ironing of pulverized coal ash. By adopting the vertical ring magnetic separator and the method for magnetically separating and de-ironing of pulverized coal ash, the de-ironing effect is improved by 20%.