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Production process for obtaining sulfur concentrate from copper tailings

A production process, copper tailings technology, applied in the field of production process to obtain sulfur concentrate, can solve the problems of low sulfur concentrate grade in sulfur recovery rate, large overflow loss, insufficient flotation acidity, etc., to solve the problem of overflow The effect of large flow loss, increased sulfur production, and improved grade

Active Publication Date: 2021-03-12
江西江铜银珠山矿业有限公司
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  • Description
  • Claims
  • Application Information

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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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  • Production process for obtaining sulfur concentrate from copper tailings

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Effect test

Embodiment 1

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

[0027] S1. The copper tailings enter the transmission thickener and are squeezed densely by rakes. The thickened ore pulp enters the ore-drawing pool to form the bottom liquid of the thickener. ;

[0028] S2. The bottom liquid of the concentrator enters the rubber-lined pump, and the rubber-lined pump transports the bottom liquid of the concentrator to the copper tail dealkalization slurry pump, and the slurry pump continues to lift to the copper tail dealkalization cyclone group Classification is carried out, and the classified grit enters the copper tailing dealkalization mixing tank to the sulfur separation process, and the dealkalization overflow is discharged with the overflow port as secondary tailings to the tailings pond;

[0029] S3. After the sand settling enters the sulfur separation ...

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 also includes, after the sulfur sweeping secondary ore is introduced into the pump pool, adding acid through the pump pool Water and clear water are mixed for pulping, and the graded grit enters the mixing tank to add acid water for further pulping to achieve the third sulfur activation. Such a new process greatly increases the sulfur output of the selected copper tail, and achieves the purpose of rapidly activating the original sulfur in the copper tail.

Embodiment 3

[0038] This embodiment provides a production process for obtaining sulfur concentrate from copper tailings. On the basis of Example 1, the pH of the minerals in the pump pool after pulping is 7.5, and the minerals in the mixing tank after pulping are 7.5. The pH is 7.2 and kept stirring for 1-2h, then continue to adjust the slurry 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. The production process comprises the following process steps that ore pulp obtained after the coppertailings are thickened enters an ore drawing pool to form a thickener base solution; the thickener base solution is conveyed to a copper tail dealkalization slurry pump by a rubber lining pump, thenlifted to a copper tail dealkalization cyclone group for grading, and graded settled sand enters a copper tail dealkalization stirring barrel and then enters a flotation machine to start a sulfur separation process; after the settled sand enters the sulfur separation process, middlings obtained through one-time roughing, three-time sweeping and one-time refining and second sulfur sweeping is guided into a pump pool of the copper tail dealkalization slurry pump, and then the middlings are lifted to the copper tail dealkalization cyclone through the slurry pump to be subjected to secondary activation and desliming; and finally, the obtained product sulfur concentrate is thickened in a concentrate thickener. According to the production process for obtaining the sulfur concentrate from the copper tailings, the yield of overflow loss and the loss sulfur recovery rate are reduced, so that the sulfur separation recovery rate and the sulfur concentrate grade are effectively improved.

Description

technical field [0001] The technical field of sulfur separation in mines of the present invention particularly relates to a production process for obtaining sulfur concentrate from copper tailings. Background technique [0002] When copper tailings are used for sulfur separation, the concentrator generally activates the copper tails with acidic water, and then uses a rubber-lined pump to lift the underflow of the thickener to the cyclone for classification, and then sand is selected, and the overflow returns to the thickener for reciprocating separation. However, with the improvement of the production efficiency of the ball mill in recent years, the sulfur output of the copper tail has also increased correspondingly, and the original cyclone has been unable to meet the existing sulfur selection process. In order to solve the bottleneck problem affecting the production index, it is of great significance to use the copper tail dealkalization cyclone group to optimize the gradi...

Claims

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Application Information

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Patent Type & Authority Applications(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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