New method for recycling iron minerals in magnetic separated gangues

Abstract

The invention belongs to the technical field of mineral separation in iron and steel metallurgy industry, and particularly relates to a new method for recycling iron minerals in magnetic separated gangues, which adopts a method for recycling the magnetic separated gangues through staged magnetic separation, regrinding, fine screening and a magnetic separation column process: sending the magnetic separated gangues recycled by a recycling machine to a concentrated low-intensity magnetic separator; feeding the separated iron minerals into a ball mill for ball milling and discharging, and sendingthe minerals to a first segment of dehydration tank by a pump through a pump box; sending the dehydrated concentrate to a second segment of magnetic separator; sending the selected concentrate to a high frequency vibrating screen, returning substances on the screen to a feeding box of the concentrated low-intensity magnetic separator, and feeding the products under the screen into a third segmentof magnetic separator; sending the magnetic separated concentrate into a feeding box of a magnetic separation column to cause the concentrate to automatically flow to the magnetic separation column; and returning the gangues in each segment of magnetic separator to the gangue recycling machine. The concentrate at the magnetic separation column is the final concentrate, and the gangue at the firstsegment of magnetic separation recycling machine is the final gangue. The invention has reasonable process flow, can improve the grade of the reclaimed iron minerals in the magnetic separated ganguesthrough reasonable separation, fully utilize mineral resources, reduce the waste and loss of metals, obtain good indexes and simultaneously obtain remarkable economic benefit.

Description

Technical field [0001] The invention belongs to the field of beneficiation technology in the iron and steel metallurgical industry, in particular to a new method for recovering iron minerals in magnetic separation tailings. Background technique [0002] Existing magnetic tailings recovery processing systems mostly use disk tailings recovery machines to recover the magnetic minerals in the tailings. Magnetite is adsorbed on the disk, and the gangue contained in the minerals is difficult to remove, so the selected concentrate The grade is low, about 20%-30%. Summary of the invention [0003] The purpose of the present invention is to provide a new method for recovering iron minerals in magnetic separation tailings. Through the application of beneficiation equipment, the magnetic separation tailings are re-grinded, and the dissociation degree of mineral monomers in the magnetic separation tailings is improved. Recycling is carried out in stages, so as to improve the grade of recycle...

AI Technical Summary

Problems solved by technology

[0002] The existing magnetic separation tailings recovery and treatment systems mostly use disc tailings recovery machines to recover the magnetic minerals in the tailings. The magnetite is adsorbed on the disk, and the gangue mixed in the minerals is difficult to remove. The selected concentrate Low grade, around 20%-30%

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