An apparatus and a method for sorting a particulate material

A technology for granular materials and equipment, which is applied in the field of equipment and methods for classifying granular materials, can solve the problems of frequent maintenance, reduced reliability, and classification of classified materials into multiple grades, so as to increase mechanical reliability , Reduce the effect of maintenance
CN104136127AInactive Publication Date: 2014-11-05CURTAIN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CURTAIN UNIV OF TECH
Publication Date
2014-11-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present disclosure provides an apparatus for sorting a particulate material. The apparatus comprises a receiving portion for receiving the particulate material having a particle size within a predetermined range of sizes. The apparatus also comprises a distributor for receiving the particulate material at an upper end thereof and having a sloped distribution surface along which, in use, the particulate material passes substantially by gravity. A surface area of the sloped distribution surface increases towards a lower end of the distributor to facilitate a monolayer feed stream of the particles exiting and falling from a lower end of the distributor distributed as a curtain-like stream of particles. The apparatus further comprises a magnetic element for generating a magnetic force that is directed such that the particles of the falling feed stream that exit the lower end of the distributor have pathways that depend on magnetic properties of the particles. The apparatus also comprises sorting portions for sorting the particles based on the pathways of the particles.
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Description

technical field

[0001] The present invention relates to an apparatus and method for sorting particulate material and in particular, but not exclusively, the invention relates to an apparatus and method for sorting mineral raw material such as iron ore. Background technique

[0002] The mining of large quantities of iron ore is required to meet the growing demand for steel products. Mined iron ore typically includes a mixture of waste material, such as rock, and iron-containing minerals such as magnetite, hematite or goethite.

[0003] In addition, iron ores come in different grades, and in particular, iron-rich ores that contain a larger proportion of iron facilitate further processing. Therefore, it is important to be able to separate rock from iron-bearing minerals, but it would be desirable that iron-bearing minerals could also be sorted into different types or grades in an efficient manner.

[0004] Different sorting devices have been proposed for sorting material into...

Claims

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