Flotation column for sorting mineral

Abstract

The invention relates to a floatation column used for mineral separation, which is characterized in that: the floatation column comprises a column body, the interior of the column body is divided into a concentrated mineral collecting tank, a separation bucket and a tail discharge box in sequence from top to down; more than one concentrated mineral discharge ports are opened on the concentrated mineral collecting tank and provided with an electromagnetic valve used for regulating the liquid surface of the discharge of the concentrated mineral; the separation bucket comprises a middle static micro-bubble separation section and a lower cyclonic separation section, and is connected with an external inflator pump and internally provided with a cyclone in the column; the tail discharge port at the bottom of the tail discharge box is provided with an automatic discharge valve linked with the concentrated mineral discharge electromagnetic valve. The invention is a floatation column used for mineral separation which has the advantages of simple and compact structure, low cost, high efficiency and energy conservation, small land occupancy, long service life, rapid floatation speed and large processing capability.

Description

technical field [0001] The present invention mainly relates to the field of mineral separation equipment, in particular to a flotation column for mineral separation, which can not only be used for flotation of coal slime in (fine) fly ash whose middle diameter is -0.5MM particle size and below. It can also be widely used in coal slime recovery and graphite chemical industry in large, medium and small coal preparation plants, and can also be used in flotation of other metals and non-metals. Background technique [0002] With the development of the national economy, the extensive resource development model of "high development, low utilization, and high emission" has gradually restricted the resource recovery rate and resource recycling rate. In the long run, this will inevitably lead to the scarcity of natural resources, energy shortage and environmental pollution, and the development of mineral resources is facing great challenges. Flotation column has shown strong vitality...

AI Technical Summary

Problems solved by technology

The defects of the existing structure are: (1) the clean coal from flotation is discharged from one point to the same direction by the electric pump, which is not easy to grasp and control the balance of the clean coal tank above the column; (2) the tailings are collected and discharged Automatic overflow, but can not automatically control the discharge, so that the feed and discharge can not be balanced, which will affect the overall balance; even pipe blockage will occur, which will affect the flotation efficiency; (3) The design of the mixed coal slurry in the middle of the sorting barrel It is pumped

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