External annular sorting device

Abstract

The invention relates to a sorting device, in particular to an external annular sorting device which is characterized by comprising permanent magnet groups, a machine body, a flow deflector, a stand and a rotating frame, wherein the machine body in an annular structure is fixed on the stand; one end of the machine body is provided with a feed opening positioned on the right end of the upper part of the machine body; the other end of the machine body is provided with a magnetic product discharge opening positioned on the right end of the lower part of the machine body; the left part of the machine body is provided with a nonmagnetic product discharge opening positioned between the feed opening and the magnetic product discharge opening; an annular channel is arranged in the machine body and communicated with the nonmagnetic product discharge opening; the upper end of a communicated position of the nonmagnetic product discharge opening and the annular channel is provided with the flow deflector; the magnetic product discharge opening is provided with a movable door; and 2-6 permanent magnet groups are arranged on annular wires formed along the internal surface of the machine body and fixed on the rotating frame which can rotate. The invention has the advantages of compact equipment, low energy consumption, convenient installation and less magnetic material impurities.

Description

technical field [0001] The invention relates to a sorting device. Background technique [0002] The magnetic separation method and the sorting device using the magnetic method are one of the key equipment widely used in material separation. Due to the complexity of magnetic separation, in the actual mineral processing and production process, middling re-election of froth flotation including magnetic materials, middling recycling treatment of flotation columns, overflow running and mixing of concentrated dehydration (overflow contains magnetic Materials), magnetic removal of non-metallic minerals, etc., often contain more or less magnetic inclusions, magnetic intergrowths and fine-grained magnetic materials, which need to be reprocessed. [0003] When dealing with the materials in the above-mentioned processing process, there are often problems such as complicated procedures, protracted processes, and difficult handling. For example, when dealing with the medium ore of frot...

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Problems solved by technology

[0003] When dealing with the materials in the above processing process, there are often problems such as complicated procedures, protracted processes, and difficult handling.

For example, when dealing with the medium ore of froth flotation and the medium ore of the flotation column, it is often necessary to increase the volume of the flotation tank and the medium ore circulation volume or the number of cycles, resulting in prolonged process, complicated process, and some results are not good; When the concentrated and dehydrated overflow contains magnetic materials, it is very difficult to handle due to the large liquid-solid ratio and low solids in the slurry

At the same time, when the fluid medium in the magnetic material is gas or contains gas, there is currently no suitable magnetic separation equipment for their magnetic separation, such as: magnetic removal of impurities in dry fine-grained non-metallic minerals, etc.

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