A magnetic control type dense medium cyclone

Abstract

The invention discloses a magnetic regulation type dense medium cyclone, which comprises a cyclone main body, a magnetic regulation device and an overflow magnetic guide rod structure, the magnetic regulation device is installed outside the upper part of the cyclone main body and is used to feed the cyclone An adjustable magnetic field is applied inside the main body, and the overflow magnetic rod structure is inserted into the main body of the cyclone from the top of the main body of the cyclone along the central axis of the main body of the cyclone; the main body of the cyclone includes a column section of the cyclone, an upper cone of the cyclone section, the lower cone section of the cyclone, the bottom outlet of the cyclone, the cover plate of the cyclone and the feeding section of the cyclone, the cover plate of the cyclone is set on the top of the column section of the cyclone, and the feeding section of the cyclone is set The upper part of the cyclone column section, the cyclone feed section is tangent to the inner wall of the cyclone column section. The invention adjusts the magnetic field distribution in the cyclone and the size of the radial magnetic force by adjusting the magnitude of the excitation current, thereby magnetically regulating the movement law of the magnetite powder in the dense medium cyclone, and uniformly resuspending the density of the liquid distribution to improve the sorting accuracy of the dense medium cyclone.

Description

technical field [0001] The invention belongs to the technical field of coal sorting equipment, and in particular relates to a magnetic control type dense medium cyclone. Background technique [0002] At present, under the dual pressure of resource shortage and ecological environment, high efficiency, energy saving and environmental protection have increasingly become the inevitable trend of new mineral processing equipment and processes. Combining the magnetic field with the cyclone, according to the purpose of using the magnetic minerals, it can be divided into a magnetic collection type hydrocyclone and a magnetic control type dense medium cyclone. For the magnetic collection type hydrocyclone, it is based on the hydrocyclone, and the problem of anti-enrichment of the hydrocyclone during the grinding and classification process and the dehydration and desliming of the slurry containing magnetic particles are solved by applying an external magnetic field. , the enrichment o...

AI Technical Summary

Problems solved by technology

[0007] The dense medium suspension belongs to the coarse dispersion system. Taking magnetite powder as an example, it forms an uneven two-phase system with water. Under the action of self-sedimentation and centrifugal concentration, it is easy to cause uneven density distribution, and the stability of the resuspension is difficult. Control, so that the materials are sorted according to the density gradient in the dense medium cyclone, which reduces the sorting accuracy and presents the actual industrial production problem of "overflow running coarse and underflow narrowing".

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