Permanent magnet magnetic separation column

By using permanent magnets in the magnetic separation column and driving the permanent magnets to rotate using a power mechanism to form a periodic magnetic field, the problem of magnetic mineral particle agglomeration is solved, achieving efficient separation of magnetic and non-magnetic minerals and improving the sorting quality and processing efficiency of iron concentrate.

CN224443265UActive Publication Date: 2026-07-03ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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Patent Information

Application Number
CN202521674811.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-07
Publication Date
2026-07-03
Estimated Expiration
2035-08-07

AI Technical Summary

Technical Problem

When existing magnetic separation columns use electromagnetic coils as the magnetic source, the magnetic clusters formed by the agglomeration of magnetic mineral particles cannot be fully dispersed, resulting in the inclusion of non-magnetic mineral particles and affecting the separation quality of iron concentrate.

Method used

Permanent magnets are used to replace electromagnetic coils, and a power mechanism drives the permanent magnets in the moving magnetic pole group to rotate, forming a periodically changing magnetic field, which separates the non-magnetic minerals in the magnetic cluster.

Benefits of technology

It improves the sorting quality of magnetic minerals, reduces energy consumption, increases equipment processing capacity, improves slurry processing efficiency, and achieves efficient separation of magnetic and non-magnetic minerals.

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Abstract

The utility model relates to the technical field of magnetic separation equipment, in particular to a permanent magnet magnetic separation column. Comprising a separation barrel and a supporting frame, a water inlet pipeline is arranged in the separation barrel, the end of the water inlet pipeline extends out of the separation barrel to be communicated with external water supply equipment, multiple layers of movable magnetic pole sets are sequentially arranged on the supporting frame from top to bottom, each static magnetic pole set comprises first permanent magnets oppositely arranged on the two sides of the separation barrel, and the polarities of the opposite sides of the first permanent magnets are opposite; each layer of moving magnetic pole group comprises second permanent magnets oppositely arranged on the two sides of the separation barrel, the polarities of the opposite sides of the second permanent magnets are opposite, when the second permanent magnets in each layer of moving magnetic pole group are opposite, the directions of formed magnetic fields are the same, and the second permanent magnets are rotationally arranged on the supporting frame; the rotating directions of the second permanent magnets oppositely arranged on the two sides of the sorting cylinder on each layer are opposite. The magnetic field which periodically and dynamically changes in the separation cylinder enables mineral particles to be periodically agglomerated and dispersed in the separation cylinder, separation of magnetic minerals and non-magnetic minerals is achieved, and the separation quality of the magnetic separation column on the magnetic minerals is improved.
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