Effect of magnetic field orientation on high gradient magnetic separation performance

2011 ◽  
Vol 24 (1) ◽  
pp. 88-90 ◽  
Author(s):  
Luzheng Chen
Keyword(s):  
Magnetic Field ◽  
Magnetic Separation ◽  
Separation Performance ◽  
Field Orientation ◽  
High Gradient Magnetic Separation ◽  
High Gradient ◽  
Magnetic Field Orientation

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.

Investigation of Combination of Variable Diameter Rod Elements in Rod Matrix on High Gradient Magnetic Separation Performance

2014 ◽  
Vol 1030-1032 ◽  
pp. 1193-1196 ◽  
Author(s):  
Li Ding ◽  
Lu Zheng Chen ◽  
Jian Wu Zeng
Keyword(s):  
Magnetic Separation ◽  
Magnetic Particles ◽  
Decisive Role ◽  
Matrix Analysis ◽  
Separation Performance ◽  
High Gradient Magnetic Separation ◽  
High Gradient ◽  
Variable Diameter ◽  
Oxidized Iron ◽  
Weakly Magnetic

Rod matrix is effectively applied to separate fine weakly magnetic particles in pulsating high gradient magnetic separation (PHGMS), due to its reliable operation, simple combination and resistance to mechanical entrainment. They are now used to beneficiate oxidized iron ores, ilmenite, and wolframite, etc., and to purify wastewater. The combination of variable diameters rod elements in rod matrix plays a decisive role in recovery most of the different size fractions of magnetic particles, thus generating a significant influence on the performance of PHGMS. Combination of variable diameter rod elements in rod matrix on PHGMS is investigated in combination of 3 mm and 2 mm rod elements in rod matrix, by Slice-Matrix Analysis (SMA); it was found that the recovery of combinatorial rod matrix is higher than single diameter of matrix on PHGMS.

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.

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