Conical pressureless fed three-product dense-medium cyclone

Abstract

The invention relates to a taper non-pressure feeding three-product heavy medium cyclone device, wherein it is formed by first-stage non-pressure feeding cyclone device and the second-stage non-pressure feeding cyclone device; the first stage device is taper cyclone device whose taper angle theta is 5-40degree, the mounting angle alpha is 25-50degree; the second stage cyclone device is cylinder one whose mounting angle beta is 5-90degree; the front end of first stage device has heavy medium suspension inlet and light product outlet while another end has mineral inlet; one end of second-stage device has heavy product outlet and another end has middle product outlet. The invention can effectively select high-density mineral, whose density is higher than 2. 0kg / l. The invention has simple process and low cost.

Description

technical field [0001] The invention relates to a three-product dense medium cyclone for ore dressing, which belongs to the technical field of separation. Specifically, it is a conical non-pressure feeding three-product dense medium cyclone that uses low-density dense medium suspension to achieve high-density non-magnetic mineral separation. Background technique [0002] At present, the three-product dense medium cyclone has been widely used in the separation of coal. Among them, a typical example is that Chinese patent application 02158903.8 discloses "a dense medium cyclone device, coal preparation system and coal preparation method", which is a large-scale pressureless feeding three-product dense medium cyclone as the main selection Dense medium coal preparation technology and equipment for equipment. This kind of dense medium cyclone is composed of the first section (hereinafter referred to as the first section) of the cylindrical cyclone and the second section (herein...

AI Technical Summary

Problems solved by technology

[0003] The dense medium suspension density used in the above-mentioned three-product dense medium cyclone used in coal production is mostly below 1.6kg / L, so this kind of three-product dense medium cyclone cannot be used for high separation density (separation density ≥ 2.0kg / L) for effective separation of non-magnetic minerals. At the same time, this kind of three-product dense medium cyclone cannot obtain economical and effective separation of raw ore with high gangue content

[0004] In the past, the separation of non-magnetic minerals with high density was carried out by chemical beneficiation. Chemical beneficiation has the disadvantages of complicated beneficiation process, high beneficiation cost, serious environmental pollution, and difficult purification of the obtained products.

It has also been tried to adopt the dense medium beneficiation method, but it has not been successful due to various reasons.

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