A duplex continuous energy-saving high-gradient magnetic separator for mineral processing

Abstract

The invention discloses a duplex continuous energy-saving high-gradient magnetic separator for mineral separation. The magnetic separator comprises a rack, a magnetic separation system, a tube systemand a collection part, and the magnetic separation system comprises a magnetic separation device a and a magnetic separation device b, wherein the magnetic separation device a and the magnetic separation device b are arranged on the rack side by side, and the magnetic separation device a and the magnetic separation device b are respectively provided with the magnetic separation part and the magnetic system. The magnetic separation device a and the magnetic separation device b can realize continuous magnetic separation under the condition of working, and the magnetic separation device a and themagnetic separation device b respectively comprise an ore feeding process, a rinsing process and a rinsing process, wherein the time of the rinsing process is equal to the sum of the time of the orefeeding process and the rinsing process. According to the invention, the structure of an existing high-gradient magnetic separator is optimized and improved, the magnetic separation period of the high-gradient magnetic separator is correspondingly adjusted, the continuous magnetic separation can be achieved on the whole, and the magnetic separation efficiency of the high-gradient magnetic separator is improved.

Description

technical field [0001] The invention relates to a high-gradient magnetic separator, in particular to a duplex continuous energy-saving high-gradient magnetic separator for magnetic separation from fluid ore pulp. Background technique [0002] In the history of human mineral extraction, magnetic field has been used for magnetic separation of minerals for more than 100 years. Due to the constraints of the development of basic science such as theory and materials, the initial magnetic separator has not been widely used. Since the use of electromagnets to generate magnetic fields in 1855, the theory and practice of magnetic separators have become more and more perfect. Various types of industrial magnetic separation equipment have emerged in the industry, and magnetic separation has been widely used in iron ore beneficiation. application. After the 1960s, with the continuous development of material science, the magnetic field strength of permanent magnet materials became strong...

AI Technical Summary

Problems solved by technology

The high-gradient magnetic separators in the prior art mostly use electromagnetic coils to generate the magnetic field, which has the advantages of convenient control and high magnetic field strength, which can reach more than 1.5T, and the magnetic field strength can be adjusted by adjusting the current. The disadvantages are also obvious. Because the electromagnetic coil is used, it needs a large current when generating a magnetic field, and its power consumption is huge. It is a famous "electric tiger". In the field of mineral magnetic separation, not all magnetic separation processes are It is necessary to use a magnetic field above 1.5T for magnetic separation. Therefore, in many rough or weak magnetic separation occasions, the use of electromagnetic coil type high gradient magnetic separator is often "overkill".

Moreover, when the coil is energized to generate a magnetic field, it will also generate huge heat due to eddy current effects and other reasons. The machine must control the heat to operate normally. Therefore, high-gradient magnetic separators that use electromagnetic coil magnetic separation need to be equipped with a set of complex oil Cold or water-cooled circulation system, which further increases the complexity and manufacturing cost of HGMS

At the same time, the high-gradient magnetic separators in the prior art all use periodic magnetic separation, which cannot realize continuous magnetic separation of materials, and the magnetic separation efficiency is lower than that of continuous magnetic separators.

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