Method and device for simultaneously carrying out grinding and floatation processes on ultrafine particles

An ultra-fine particle, edge flotation technology, used in flotation, solid waste removal, solid separation, etc., can solve the problems of increasing the torque of the driving mechanism, hindering the design of flotation functions, and low flotation efficiency, and reducing Driving power, saving particle classification device configuration, and facilitating installation and maintenance

Inactive Publication Date: 2014-06-25
佛山市兴民科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the driving mechanism of the stirring screw shaft is set on the top of the vertical grinding machine, the setting of the stirring screw shaft is longer, thereby increasing the torque of the driving mechanism, resulting in an increase in driving power; this setting method of the driving mechanism also hinders the The flotation function design on the upper part of the vertical grinding machine is required, resulting in low flotation efficiency

Method used

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  • Method and device for simultaneously carrying out grinding and floatation processes on ultrafine particles
  • Method and device for simultaneously carrying out grinding and floatation processes on ultrafine particles

Examples

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Effect test

Embodiment 1

[0036] From attached figure 1 It can be seen that the present invention is an ultrasonic flotation method for ultrafine particles, and adopts the method of integrating the grinding process and the ultrasonic flotation process in the flotation cell body 15, so that the ore pulp 3 to be flotation is located in the flotation tank 15 The vertical grinding functional zone 29 at the lower part of the selection tank enters the flotation tank body, and after the set grinding process, the new grinding slurry 26 is produced; the new grinding slurry enters the upper part of the vertical grinding functional zone. The ultrasonic dispersing functional area 40 in the ultrasonic dispersing functional area 40, after the set ultrasonic dispersing process, the output ultrasonic dispersing pulp 25; the ultrasonic dispersing pulp enters the ultrasonic flotation functional area 4 located on the upper part of the ultrasonic dispersing functional area, and undergoes the set ultrasonic flotation Afte...

Embodiment 2

[0047] An ultrasonic flotation process of edge grinding and flotation of cyanogen gold waste slag, the cyanogen gold waste slag contains 4g / t of gold, and the particle size is ≤74um accounting for 100%. Tests have shown that a gold recovery rate of 92.5% can be obtained for a gold concentrate grade ≥ 20 g / t by using a one-stage, one-stage edge-grinding, edge-floating, and ultrasonic flotation process. However, if the grade of gold concentrate is ≤20g / t, or even cyanogen gold waste residue or flotation tailings with a gold content of ≤1g / t, the gold recovery rate of 92.5% cannot be achieved by using the first-stage and one-stage side-grinding and flotation ultrasonic flotation process. , the grade of gold concentrate produced is ≤10g / t. Therefore, it is necessary to apply the grinding-side-floating ultrasonic flotation process for roughing first, and then apply the grinding-side-floating ultrasonic flotation process for the coarse concentrate.

[0048] From attached figure 2...

Embodiment 3

[0058] A side-grinding and floating ultrasonic flotation process of low-grade ultra-fine zinc oxide ore, zinc oxide ore contains zinc ≤ 6%, particle size ≤ 74um accounts for 80%, and mud content 10-30%. The test shows that the zinc oxide ore with high mudification rate is suitable for the ultrasonic flotation process in which the muddy zinc oxide ore is separated separately and the zinc oxide ore is ground and floated after desliming.

[0059] The edge-grinding-float ultrasonic flotation process of ultra-fine zinc oxide ore, the technical principle is the same as embodiment one, but its ultrasonic sound intensity parameter is set as 10-50% of embodiment one; It is 150-300% of Embodiment 1; under the same conditions of grinding intensity and grinding time parameters, the processing amount of pulp to be flotation is set as 150-300% of Embodiment 1.

[0060] Test results: zinc recovery rate 83-85%, zinc concentrate grade 33-36%.

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Abstract

The invention provides a method and a device for simultaneously carrying out the grinding and floatation processes on ultrafine particles. An ultrasonic generating device is arranged in an integral flotation cell during the grinding and floatation processes, so ultrasonic waves can be generated by the ultrasonic generating device, to promote the flotation of currently ground pulp. Alternatively, the ultrasonic generating device can also be arranged between a grinding functional area and a flotation functional area, so an ultrasonic dispersion functional area can be established between the grinding functional area and the flotation functional area, the currently ground pulp can be dispersed on an ultrasonic basis and further subjected to ultrasonic flotation in the flotation functional area. The entire device of the invention consists of the grinding functional area and the flotation functional area located in the same flotation cell and is characterized in that the device is further provided with the ultrasonic dispersion functional area, and the ultrasonic dispersion functional area and the flotation functional area are provided with the ultrasonic generating devices.

Description

Technical field [0001] The invention relates to a mineral flotation method and device, in particular to a mineral flotation method and device for flotation while grinding ultrafine particles, and belongs to the technical field of flotation. Background technique [0002] When the ore particle size is less than 74um (200 mesh) accounts for more than 80%, the flotation efficiency of the conventional flotation method tends to decrease as the ore particle size decreases. Therefore, for the enrichment of valuable elements that need to achieve ultra-fine particle size to obtain effective dissociation, separation and smelting engineers turn to wet leaching or pyro-smelting methods. When the content of valuable elements (such as Au) in ultrafine particles is low, it is difficult to make profits by wet leaching or pyrometallurgy due to the constraints of energy and environmental pollution costs. As a result, a large number of valuable elements with ultra-fine particle size and low gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00B03D1/16B02C17/10B09B3/00
Inventor 曾兴民孟宇群梁中堂汪旭明
Owner 佛山市兴民科技有限公司
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