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A production process for obtaining sulfur concentrate from copper tailings

A production process and technology of sulfur concentrate, which is applied in the field of production process for obtaining sulfur concentrate, can solve the problems of low sulfur concentrate grade in sulfur recovery rate, large overflow loss, insufficient flotation acidity, etc. The effect of increasing the efficiency, improving sulfur production, sulfur recovery rate and improving the grade of sulfur concentrate

Active Publication Date: 2022-06-28
江西江铜银珠山矿业有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problems of large overflow loss and insufficient flotation acidity in the existing sulfur separation process, resulting in the reduction of sulfur recovery rate and sulfur concentrate grade, and to provide a method for extracting sulfur from copper tailings. Obtain the production process of sulfur concentrate, solve the above problems, and can effectively improve the selection yield, sulfur recovery rate and sulfur concentrate grade

Method used

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  • A production process for obtaining sulfur concentrate from copper tailings

Examples

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Embodiment 1

[0026] like figure 1 As shown, the present embodiment provides a production process for obtaining sulfur concentrate from copper tailings, comprising the following process steps:

[0027] S1. The copper tailings enter the drive-type thickener and are squeezed densely with a rake. The thickened ore slurry enters the ore drawing pond to form the bottom liquid of the thickener, and the supernatant liquid of the thickener is discharged with the overflow port as a tailing to the tailings pond. ;

[0028] S2. The bottom liquid of the concentrator enters the rubber lining pump, and the rubber lining pump transports the bottom liquid of the concentrator to the copper tail dealkalization slurry pump, and the slurry pump continues to lift it to the copper tail dealkalization cyclone group Carry out grading, the graded sand enters the copper tail dealkalization mixing tank to the sulfur selection process, and the dealkalization overflow is discharged with the overflow port as secondary ...

Embodiment 2

[0036] This embodiment provides a production process for obtaining sulfur concentrate from copper tailings. On the basis of Embodiment 1, the step S3 further includes: after the sulfur sweep No. 2 middle ore is introduced into the pump tank, adding acid through the pump tank Water and clean water are mixed and slurried, and the graded sand is added to the mixing tank to add acid water to re-slurp to achieve the third sulfur activation. Such a new process greatly improves the sulfur output of the selected copper tails and achieves the purpose of rapidly activating the primary sulfur in the copper tails.

Embodiment 3

[0038] This example provides a production process for obtaining sulfur concentrate from copper tailings. On the basis of Example 1, the PH of the minerals after slurring in the pump tank is 7.5, and the slurries in the mixing tank are PH 7.5. The pH is 7.2 and keep stirring for 1-2h, then continue to mix with acid water to make the pH 7 and keep stirring for 0.5-1h, then continue to adjust the pH to 6.5 and keep stirring for 30-45min.

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Abstract

The invention discloses a production process for obtaining sulfur concentrate from copper tailings, which includes the following process steps: the thickened copper tailings slurry enters the ore drawing pool to form the bottom liquid of the concentrator; the rubber-lined pump transports the bottom liquid of the concentrator to the copper tail dealkalization slurry pump, and then sent to the copper tail dealkalization cyclone group for classification, the classified sand enters the copper tail dealkalization mixing tank, and then enters the flotation machine to start the sulfur selection process; the sand settling After entering the sulfur separation process, the medium ore obtained by first roughing, three sweeping, one fine, and sulfur sweeping two is imported into the pump pool of copper tail dealkalization slurry pump, and then sent to the copper tail dealkalization cyclone by the slurry pump for secondary treatment. Secondary activation and desliming; the final product sulfur concentrate is thickened by the concentrate thickener. The invention provides a production process for obtaining sulfur concentrate from copper tailings, which can effectively improve the sulfur recovery rate and sulfur concentrate grade by reducing the overflow loss yield and sulfur recovery rate.

Description

technical field [0001] The present invention is in the technical field of mine sulfur beneficiation, in particular to a production process for obtaining sulfur concentrate from copper tailings. Background technique [0002] When using copper tailings for sulfur beneficiation, the beneficiation plant generally activates the copper tails with acid water, and then uses a rubber-lined pump to lift the underflow of the thickener to the cyclone for classification, and then the sand is selected for selection, and the overflow returns to the thickener for reciprocating cycle sorting. However, with the improvement of the production efficiency of the ball mill in recent years, the output of sulfur selected for copper tails has also increased accordingly, and the original cyclone can no longer meet the existing sulfur selection process. In order to solve the bottleneck problem that affects the production index, it is of great significance to use the copper tail dealkalization cyclone g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B9/06B03B1/00
CPCB03B9/06B03B1/00
Inventor 周建平
Owner 江西江铜银珠山矿业有限公司
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