magnetic separator for gypsum

The pilot-scale PTMS ELECTROMAGNETIC SEPARATOR process combining magnetic separation pretreatment and superconducting magnetic separation utilizes an efficient electromagnetic slurry disintegrator during the pretreatment stage. Through coordinated high-frequency vibration and directional magnetic field effects, this system effectively disintegrates iron minerals encapsulated within kaolinite aggregates, preventing intergranular loss caused by agglomeration. The mineral slurry concentration is maintained at approximately 25%, with pH adjusted to 6.5-7.0 to enhance particle surface charge differentiation and improve subsequent magnetic separation selectivity.

PTMS ELECTROMAGNETIC SEPARATOR

During the superconducting magnetic separation phase, the PTMS ELECTROMAGNETIC SEPARATOR equipment operates at 4.5 Tesla magnetic field strength with precise control of pulp flow rate at 1.2 m/s, ensuring sufficient particle retention time in the magnetic field for effective capture. Through two-stage series magnetic separation, the concentrate's Fe₂O₃ content was reduced from 2.3% to 0.78%, while whiteness increased from 78% to 89.5%, meeting high-end ceramic greenware standards.

what is magnetic separation？

The combined PTMS ELECTROMAGNETIC SEPARATOR process of magnetic separation pretreatment and superconducting magnetic separation reduces energy consumption by approximately 30% compared to traditional high-gradient magnetic separation. Moreover, since the superconducting coils can operate continuously once energized without requiring constant power supply, it offers significant long-term operational cost advantages. Iron impurities not only affect kaolin's whiteness but also cause defects such as color spots and bubbles during high-temperature sintering, severely hindering the development of premium products.
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