Full
Outline
A 3D finite element simulation model of a ZH high-intensity magnetic separator (HIMS) was established based on Ansys Maxwell. The magnetic field distribution characteristics and the variation law of magnetic field intensity in the separation channel of the separator with three kinds of medium (serrated plate, elliptical rod and cylindrical rod) were systematically analyzed. A simulation experiment on separating particles was conducted by using the discrete element method. The results show that the serrated plate medium produces an obviously focused magnetic field effect at the serrated part, with the maximum field intensity reaching 2.08 T. The periodic strong gradient fluctuation is beneficial to the efficient capture of fine ilmenite particles. The elliptical rod medium can bring good uniformity in magnetic field strength, which is suitable for stable separation of coarse minerals. The cylindrical rod medium leads to a wide magnetic field distribution and can be applicable to separation of mixed materials with wide size fraction. The simulation results are in good agreement with the experimental measurement, which verifies the reliability of the model. Further particle simulation reveals that serrated plate medium can break particle agglomeration and suppress non-magnetic mineral entrainment by periodic gradient reversal, and finally realize the efficient enrichment of ilmenite. It is concluded that the serrated plate medium has significant advantages in separation of fine ilmenite and is the preferred medium for the ZH HIMS.
99
22
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
