Dry magnetic separator with introduced wind power and mineral magnetic separation method

Abstract

The invention discloses a dry magnetic separator with introduced wind power and a mineral magnetic separation method. The dry magnetic separator comprises an outer shell, a feeding device, a ventilation roller barrel, an unloading roller, a concentrate hopper and a tailings hopper, wherein ventilation roller barrel is arranged in the outer shell in a horizontal rotation manner; a low-frequency alternating magnetic field is arranged at the surface of the ventilation roller barrel; a plurality of through holes are uniformly formed in the surface of the ventilation roller barrel; ventilation materials are embedded into the through holes; the ventilation roller barrel is provided with a closed inner cavity; pressure air is introduced into the inner cavity; the feeding device corresponding to the ventilation roller barrel is arranged at the top of the outer shell; the unloading roller is arranged at the right side of the ventilation roller barrel; the concentrate hopper is correspondingly arranged below the unloading roller; the tailings hopper is correspondingly arranged below the ventilation roller barrel. According to the device and the method, the wind power is introduced into the separation and sorting processes of magnetic materials, so that the wind power, gravity and centrifugal force together directly take part in completion with magnetic force, and further the recovery rate of magnetic mineral can be obviously increased, and the concentrate grade is obviously promoted.

Description

technical field [0001] The invention belongs to the technical field of mineral magnetic separation, in particular to a dry magnetic separator and a mineral magnetic separation method. Background technique [0002] The so-called magnetic separation is a mineral separation method that uses the magnetic difference of the materials to be sorted to separate mineral particles in the sorting magnetic field. Magnetic separation can be divided into wet magnetic separation and dry magnetic separation in two forms. Wet magnetic separation needs to use water as the working medium, which will be difficult to realize in areas with severe water shortage, and may cause serious pollution to the surrounding environment; compared with the complicated process and application limitations of wet magnetic separation, dry magnetic separation The equipment has many advantages such as simple structure, low investment, low operating cost, energy saving and environmental protection. Therefore, dry ma...

AI Technical Summary

Problems solved by technology

However, the phenomenon of magnetic agglomeration and magnetic inclusion during the sorting process of fine-grained magnetic materials still cannot be solved well.

Images