Overflow-discharge-type magnetic hydrocyclone

Abstract

The invention relates to an overflow-discharge-type magnetic hydrocyclone. The technical scheme is that the lower end of an overflow tube (3) is positioned on the middle part or the lower part of a cylinder body (9); the upper end of a central magnetic bar (5) is welded on a port at the lower end of the overflow tube (3) through 2-4 connecting fins (4); the lower end of the central magnetic bar (5) is in flush with the lower end of an upper conical body (8), and the diameter of the central magnetic bar (5) is 0.2-0.3 times of the inner diameter of the overflow tube (3); the overflow tube (3), the connecting fins (4), the central magnetic bar (5), the upper conical body (8) and the cylinder body (9) all adopt magnetic materials; a top cover (11), an ore feeding block (10) and a lower conical body (7) all adopt nonmagnetic materials; one ends of four U-shaped iron cores wound with coils (1) are respectively welded on the outer wall of the overflow tube (3) extending out of the top cover (11), and the other ends of the four U-shaped iron cores wound with coils (1) are respectively welded on the outer wall of the cylinder body (9); and the U-shaped iron covers (2) wound with the coils are arranged in a 'cross-shaped' central symmetrical mode. The overflow-discharge-type magnetic hydrocyclone provided by the invention has the advantages of low cost, energy consumption conservation, long service life, convenience in operation, high classification efficiency and adaptability to industrial application.

Description

technical field [0001] The invention belongs to the technical field of hydrocyclones. Specifically, it relates to an overflow discharge type magnetic hydrocyclone. Background technique [0002] Since the emergence of hydrocyclone in the 1930s, its structure and performance have been continuously improved and perfected, and it has been widely used in mineral processing, chemical and petroleum fields. The classification particle size of the hydrocyclone is not only related to the particle size, but also to the density, that is, the particles with large diameter and low density enter the overflow, and the particles with small diameter and high density enter the underflow. In the iron ore grinding and classification circuit widely used by the cyclone, this defect leads to: (1) The iron minerals that have been dissociated from monomers enter the grit due to their high density and continue to return to the mill for grinding, which not only It wastes energy and causes unnecessary...

AI Technical Summary

Problems solved by technology

Since the above-mentioned equipment has a magnetic field from the top cover of the cyclone to the corresponding overflow pipe section at the lower end of the cylinder, the fine magnetic materials will be attracted to the overflow pipe, reducing the classification efficiency; the cylinder has a magnetic field, and the magnetic field of the vertebral body is very weak. The effective magnetic field range is small, and there are still a large number of materials with qualified particle size enriched in the sand settling, resulting in overgrinding, which will bring adverse effects to subsequent sorting operations, so it is not used in industry

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