Study on the demarcation of applied magnetic induction for determining magnetization state of matrices in high gradient magnetic separation

2018 ◽  
Vol 127 ◽  
pp. 191-197 ◽  
Author(s):  
Yuhua Wang ◽  
Danxiao Gao ◽  
Xiayu Zheng ◽  
Dongfang Lu ◽  
Xudong Li
Keyword(s):  
Magnetic Separation ◽  
Magnetic Induction ◽  
High Gradient Magnetic Separation ◽  
High Gradient ◽  
Magnetization State

Centrifugal High Gradient Magnetic Separation of Fine Ilmenite

2013 ◽  
Vol 634-638 ◽  
pp. 3304-3307
Author(s):  
Lu Zheng Chen ◽  
Guo Dong Xu ◽  
Jian Xiong Huang ◽  
Shu Ming Wen
Keyword(s):  
Magnetic Separation ◽  
Magnetic Induction ◽  
Rotation Speed ◽  
Pilot Scale ◽  
Separation Performance ◽  
High Gradient Magnetic Separation ◽  
High Gradient ◽  
Concentrate Grade ◽  
Two Parameters

Centrifugal High Gradient Magnetic Separation (CHGMS) was creatively developed, and in the present investigation was used for the concentration of fine ilmenite from tailings through a cyclic pilot-scale CHGMS separator, to study the effect of two key parameters, i.e., magnetic induction and rotation speed of matrix, on the separation performance of the separator. The results of investigation indicates that the CHGMS is effective in concentrating the ilmenite; an increase in the rotation speed increases concentrate grade but reduces recovery of TiO2, and this is reverse for the induction. While the two parameters were optimized, a concentrate assaying 19.42% TiO2 with 80.72% recovery of TiO2 is achievable from the tailings assaying 8.18% TiO2. It was concluded that the CHGMS provides a prospective technology for the concentration of fine ilmenite.

Effect of Rod Arrangement in Matrix on High Gradient Magnetic Separation Performance

2013 ◽  
Vol 634-638 ◽  
pp. 3351-3354 ◽  
Author(s):  
Lu Zheng Chen ◽  
Guo Dong Xu ◽  
Shu Ming Wen ◽  
Si Qing Liu ◽  
Li Kun Gao
Keyword(s):  
Magnetic Separation ◽  
Magnetic Induction ◽  
Pilot Scale ◽  
Superior Performance ◽  
Separation Performance ◽  
Collision Efficiency ◽  
High Gradient Magnetic Separation ◽  
High Gradient ◽  
Magnetic Elements ◽  
The Matrix

The effect of rod arrangement in a rod matrix on high gradient magnetic separation (HGMS) performance has been comparatively investigated through a cyclic pilot-scale centrifugal HGMS separator, with contiguously and orthogonally arranged rod matrixes respectively. The results of investigation indicate that the arrangement of rod elements in the matrix has a distinct effect on the HGMS performance, for relatively low magnetic inductions; beyond the threshold magnetic induction, the magnetic induction dominates that of the arrangement and the importance of the arrangement is significantly weakened even vanished. It was thus concluded that the combinatorial optimization for magnetic elements in the matrix improves the collision efficiency of particles with matrix, and gives a superior performance in a HGMS separator, at a lower energizing consumption.

scholarly journals Selective Capture of Magnetic Wires to Particles in High Gradient Magnetic Separation

Minerals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 509 ◽  
Author(s):  
Zeng ◽  
Tong ◽  
Yi ◽  
Chen
Keyword(s):  
Magnetic Separation ◽  
Magnetic Induction ◽  
Actual Condition ◽  
Ideal Condition ◽  
High Gradient Magnetic Separation ◽  
High Gradient ◽  
Feed Mode ◽  
Weakly Magnetic ◽  
Magnetic Wires ◽  
The Ideal

High gradient magnetic separation (HGMS) achieves effective separation to fine weakly magnetic minerals using numerous small magnetic wires in matrix, and its separation performance is inherently dependent on the capture characteristics of the wires. In this work, the selective capture of magnetic wire to particles in high gradient magnetic field was theoretically described and simulated using COMSOL Multiphysics. It was found that the capture trajectories of a small amount of particles under the ideal condition was significantly different from those of a large amount of particles under the actual condition, and non-magnetic particles would be much more easily entrained into magnetic deposits captured onto the wire surface under the actual condition than those under the ideal condition. These theoretical and simulated results were basically validated with the experimental magnetic capture to an ilmenite ore, and the wires in slow feed mode have achieved much higher capture selectivity than those in the fast feed mode. For instance, at the magnetic induction of 0.8 T, the TiO2 grade of magnetic deposits captured by 3 mm diameter wire in the slow feed model reached 36.78%, which is higher than 28.32% in the fast feed model. The selective capture difference between the fast and slow feed models increased with increase in the magnetic induction and with decrease in the pulsating frequency. This investigation contributes to improve HGMS performance in concentrating fine weakly magnetic ores.

PARTICULATE CAPTURE OF PLUTONIUM BY HIGH GRADIENT MAGNETIC SEPARATION WITH ADVANCED MATRICES

2001 ◽  
Vol 36 (5-6) ◽  
pp. 1335-1349 ◽  
Author(s):  
Laura A. Worl ◽  
David Devlin ◽  
Dallas Hill ◽  
Dennis Padilla ◽  
F. Coyne Prenger
Keyword(s):  
Magnetic Separation ◽  
High Gradient Magnetic Separation ◽  
High Gradient
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