Novel magnetite separation technology

Abstract

The invention discloses a novel magnetite separation technology, and belongs to the technical field of mine mineral separation. The novel magnetite separation technology comprises the following stepsthat one, raw ore is conveyed into a first-stage ball mill for grinding, and after the grinding, a product enters a first-stage swirler for grading; two, an overflow product enters a weak magnetism wet magnetic separator for rough separation, rough separation concentrate enters a second-stage swirler for grading; three, an overflow product is input to a high-frequency undersize sieve for re-grading; four, an undersized product is condensed by a concentration magnetic separator and then is input into a first-stage magnetic separation column for separation; and five, magnetic concentrate is fedinto an elutriation machine for treatment and enters a second-stage magnetic separation column for separation, and thus concentrate is obtained finally. The first-stage magnetic separation column, theelutriation machine and the second-stage magnetic separation column are connected in series in use, and the fineness of a graded product from the second-stage ball mill is thickened appropriately, sothat a new mineral separation idea of obtaining the concentrate in advance is formed, a traditional grinding separation process flow is simplified and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of mine beneficiation, and more specifically, relates to a novel magnetite beneficiation process. Background technique [0002] Most of the domestic magnetite beneficiation industry adopts magnetic separation processing operations, and the process is mostly stage grinding, primary magnetic separation-secondary, and third re-magnetic separation processes. The most used sorting equipment is the wet drum magnetic separator, which has the characteristics of simple operation, high stability and convenient maintenance. The process of magnetic separation is that the magnetic field acts on the mineral particles. The magnetite particles themselves have the properties of a magnet, and the magnetite particles are attracted to each other, so they will "group" and "link", which is the so-called "magnetic separation". reunion". In the "magnetic agglomeration" clusters, gangues and joints will be wrapped, which reduces t...

AI Technical Summary

Problems solved by technology

In recent years, new high-efficiency magnetite separation equipment, such as magnetic separation columns and elutriation machines, have come out one after another, and major domestic dressing plants are also competing to use them, but they are basically used in the last separation operation before the final concentrate , have not seen the precedent of using magnetic separation column and elutriation machine before this, and have not seen the application of fine screen-magnetic separation column-elination machine or elutriation machine-magnetic separation column joint operation process

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