Floatation column for mineral separation

Abstract

A flotation column for mineral separation, characterized in that it includes a column body, which is divided into a concentrate collection tank, a sorting barrel, and a tailings discharge box from top to bottom in sequence, and the concentrate There is more than one concentrate discharge port on the collection tank, and the concentrate discharge port is equipped with a concentrate discharge electric solenoid valve that can adjust the liquid level. In the sorting section, the sorting barrel is connected with the external air pump, and the sorting barrel is equipped with a column inner cyclone, and the tailings discharge port at the bottom of the tailings discharge box is equipped with an automatic valve linked with the concentrate discharge electric solenoid valve. Dump valve. The invention is a flotation column for mineral separation with simple and compact structure, low cost, high efficiency and energy saving, small floor space, long service life, fast flotation speed and large processing capacity.

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 by a single circulation pump into the multi-point circulation of the mineralizer at the top of the flotation column, and its repeated separation speed is slow, inconvenient to adjust, and the efficiency is not high; The implementation of the system plays the role of air inflation and pressure supplementation, but for the automatic discharge of clean coal and liquid level adjustment, the automatic collection and discharge of tailings have no direct correlation effect, so the overall automation control is not high, the utilization rate of equipment is not very ideal, and the energy consumption also larger

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