Impurity separator for rare earth permanent magnetic materials for civil engineering

Abstract

The invention relates to the technical field of impurity separation equipment for rare earth permanent magnetic materials, and in particular to an impurity separator for rare earth permanent magneticmaterials for civil engineering. A servo motor rotates a first rotating shaft through gear rotation, so that a reel rotates along with the first rotating shaft to tighten or loosen a first pull rope.A sliding sleeve is moved up and down under the effect of the first pull rope and a first spring, and moves a first sliding block through a rotating rod, so that a first spring rod moves a crushing roller to crush the materials. Impurities and magnetic materials are separated, the crushed materials fall into an impurity removal box from a through hole. Magnetic adsorption is generated by using anelectromagnetic chuck such that the magnetic parts in the materials falling into the impurity removal box are adsorbed, and nonmagnetic impurities are automatically guided to the right end along withthe gradient of an inclined plane and are discharged from a discharge pipe. The impurity separator is easy and convenient to operate, and good in impurity removal effect.

Description

technical field [0001] The invention relates to the technical field of impurity separation equipment for rare earth permanent magnet materials, in particular to an impurity separator for rare earth permanent magnet materials used in civil engineering. Background technique [0002] Civil engineering refers to various technical work such as survey, planning, design, construction, installation and maintenance for new construction, reconstruction or expansion of buildings, structures and related supporting facilities, etc. engineering entities. [0003] Rare earth engineering is a direction and branch of civil engineering. The rare earth is a permanent magnetic material, which refers to a material that can maintain a constant magnetic field once it is magnetized. In practice, permanent magnet materials work in the second quadrant demagnetization part of the hysteresis loop after deep magnetic saturation and magnetization. Commonly used permanent magnet materials are divided in...

AI Technical Summary

Problems solved by technology

[0009] Although the rare earth permanent magnet material has the most superior magnetic properties, it also has serious weaknesses, one of which is poor corrosion resistance. The electrochemical corrosion potential of the Nd-rich phase of the rare earth permanent magnet is extremely low, and it is easy to oxidize, absorb hydrogen and hydrolyze. , so rare earth permanent magnets can degrade rapidly in a certain environment and lose their magnetic properties

If these corroded and degraded rare earth permanent magnet materials are discarded directly, it will cause a waste of rare earth resources. Therefore, there are successive methods of using waste rare earth permanent magnet materials to regenerate high-performance permanent magnets.

[0010] However, in the process of recycling waste rare earth permanent magnet materials, impurity removal is a very important part. If manual picking is used, since the waste rare earth permanent magnet materials still have a certain degree of magnetism, it is difficult to remove impurities. Recycling The efficiency is not high, so it is necessary to design a kind of impurity separator for rare earth permanent magnet materials used in civil engineering to improve the efficiency of impurity removal

Images