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

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United States of America Patent

PATENT NO 8505735
APP PUB NO 20130043167A1
SERIAL NO

13579306

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A vertical ring magnetic separator for de-ironing of 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 coal ash to be de-ironed, and the tailing bucket (107) is used for discharging the non-magnetic particles after de-ironing. The upper iron yoke (103) and the lower iron yoke (104) are respectively arranged at the inner and outer sides of the lower portion of 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 wires, and ridge-shape sharp corners are formed at the edges of the wires. A method for magnetically separating and de-ironing of coal ash, utilizes the vertical ring magnetic separator for de-ironing of coal ash. By adopting the vertical ring magnetic separator and the method of magnetic separation for de-ironing, the de-ironing efficiency is improved by at least 20%.

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Patent Owner(s)

  • CHINA SHENHUA ENERGY COMPANY LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chi, Junzhou Beijing, CN 3 14
Dong, Hong Beijing, CN 32 469
Guo, Zhaohua Bejing, CN 9 14
Han, Jianguo Beijing, CN 7 20
Lv, Sa Beijing, CN 1 3
Nan, Qingan Beijing, CN 1 3
Wang, Yongwang Beijing, CN 14 17
Wei, Cundi Beijing, CN 4 14
Xu, Shaonan Beijing, CN 1 3
Zhang, Jianmin Beijing, CN 84 438
Zhang, Wenhui Beijing, CN 72 183

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