Special equipment for flotation and air inflation in metallurgical mineral dressing

A special equipment, stirring tank technology, applied in flotation, solid separation and other directions, can solve the problem that the effective volume of a single machine cannot keep up with the development needs, reduce the rate of mineral leaching/oxidation, and reduce the cut-off grade of useful minerals, etc. Power consumption, improve flotation recovery rate, and realize the effect of automatic control

Inactive Publication Date: 2009-09-23
王树芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, with the expansion and sharp increase of mineral development and utilization, the cut-off grade of useful minerals has decreased. In order to obtain more useful minerals, the scale of ore dressing plants has become larger and larger. However, no major improvements and breakthroughs have been made in terms of stirring the pulp and aeration methods. The effective volume of a single machine cannot keep up with the development needs, the flotation effect is not good, and the power consumption is large.
For example, the inflating method of the leaching tank / oxidation tank in the existing non-ferrous metal beneficiation and smelting plant is generally to insert several steel pipes to inflate. Oxidation rate, which affects the improvement of leaching / oxidation recovery

Method used

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  • Special equipment for flotation and air inflation in metallurgical mineral dressing
  • Special equipment for flotation and air inflation in metallurgical mineral dressing
  • Special equipment for flotation and air inflation in metallurgical mineral dressing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, reference figure 1 — image 3 As shown, the device is mainly composed of host machine A, foam overflow system B, microbubble generating separator, microbubble generating system D and automatic liquid level pulp adjustment mechanism E, etc., among which,

[0020] The main engine A includes a stirring tank body 1, on which a reduction device 2 composed of a motor and a vertical reducer is installed, and an upper, middle and lower three-layer worm impeller stirring paddle 3 is installed in the stirring tank body 1, wherein The uppermost worm impeller agitator 3 is additionally equipped with a flat column pulp distribution blade a, and the worm impeller agitator 3 is connected to the reduction device 2 through a shaft;

[0021] The foam overflow system B is set in the main machine A, and includes a foam-push inverted cone-shaped tank 4 installed on the upper part of the stirring tank 1, and an annular foam overflow chute 5 is arranged on the upper end of the ...

Embodiment 2

[0033] Example 2, see Figure 4 , the structure of this example is basically the same as that of the previous example, the difference is that the water pump 21 and the vacuum water jet pump 20 are not used, but the air can be directly supplied by the air compressor, and the air passes through the air inlet 17, the air flow meter 16, the air supply The air duct c enters the air-water separation column tube 8, and then passes through a number of inflatable distribution branch pipes 9, and enters the chambers of the microbubble inflatable distributor 7, and overflows from the inflatable micropore 7-1 to achieve the purpose of microbubble inflatable.

[0034]The present invention adopts the above-mentioned device to realize complete coverage of micro-bubble inflation with no dead angle, good inflation effect, high flotation recovery rate, sufficient oxidation reaction, higher and faster leaching speed, achieving the purpose of strengthening oxidation leaching and improving recovery...

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Abstract

The invention discloses a special equipment for metallurgical beneficiation flotation inflation, which is characterized in that in the mineral flotation process, the self-balancing water isolation microbubble generation inflation method is used to completely cover the microbubble inflation, and the special equipment includes a main machine, a foam overflow system, Microbubble generation separator, microbubble generation system and automatic liquid level pulp adjustment mechanism, etc., using the flotation column / leaching tank / oxidation tank of the technology of the present invention, a large number of micro bubbles with full coverage and no dead angle rising are generated from the bottom of the tank when working. Foaming, and the reverse flow of the falling pulp, strengthens the stirring effect of mineral particles, the pulp does not sink and there is no dead angle, the foam layer on the surface of the flotation liquid is very stable, the required concentrate product can be obtained, and the recovery rate of flotation is improved. The residence time of a large number of microbubbles is prolonged, so that the speed of dissolved oxygen is accelerated, and the oxygen utilization rate can be increased by 40%, so that the oxidation reaction is more complete, the leaching speed is higher and faster, and the purpose of strengthening oxidation leaching and improving recovery rate is achieved, thereby improving benefit.

Description

technical field [0001] The present invention relates to a new technology of micro-bubble aeration of three-impeller agitated flotation column / leaching tank / oxidation tank. / Oxidation tank) for microbubble inflation, which belongs to metallurgical technology. Background technique [0002] At present, with the expansion and sharp increase of mineral development and utilization, the cut-off grade of useful minerals has decreased. In order to obtain more useful minerals, the scale of ore dressing plants has become larger and larger. However, no major improvements and breakthroughs have been made in terms of stirring the pulp and aeration methods. The effective volume of a single machine cannot keep up with the development needs, the flotation effect is not good, and the power consumption is large. For example, the inflating method of the leaching tank / oxidation tank in the existing non-ferrous metal beneficiation and smelting plant is generally to insert several steel pipes to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/02B03D1/16
Inventor 王树芳王英秋
Owner 王树芳
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