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Preparation method of full-tailings paste

A full tailings and system technology, applied in the mining field, can solve the problems affecting the filling efficiency of the paste, and achieve the effects of increasing mine income, improving stability, and stabilizing the concentration of the preparation

Active Publication Date: 2015-12-02
UNIV OF SCI & TECH BEIJING +1
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Problems solved by technology

Among them, the precise control of the concentration is the key. At present, the concentration control mainly depends on the deep cone thickener. If the underflow concentration of the whole tailings of the thickener is high, the design concentration can be achieved by adding water, but if the underflow concentration of the thickener is lower than the design value, it cannot be achieved. Adjustment can only stop filling, which greatly affects the filling efficiency of paste

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  • Preparation method of full-tailings paste

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Embodiment Construction

[0017] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0018] The present invention provides a whole tailings paste preparation method aiming at the problems such as the deficiency of the existing paste preparation concentration control method.

[0019] Such as figure 1 As shown, is the flow diagram of the method, using the method shown in the flow diagram to fill a copper-zinc ore with full tailings paste.

[0020] There are provincial highways and section expressways passing above a certain copper-zinc mine, and the mining area is located in a forest protection area. In order to prevent the surface subsidence caused by ore body mining and affect the normal operation of the road, at the same time, in order to prevent excessive tailings from the mining area from occupying the forest protection area After re...

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Abstract

The invention provides a preparation method of a full-tailings paste and belongs to the technical field of mining. The method comprises the following steps: firstly thickening and concentrating full-tailings slurry of a concentration plant through a deep-cone thickener, introducing the full-tailings slurry into a paste stirring system when the full-tailings slurry needs to be packed after the full-tailings slurry is thickened to the designed concentration, introducing the full-tailings slurry into a full-tailings drying system, introducing one part of the dried full tailings into an automatic adding system of the dried full tailings to adjust the preparation concentration of the paste, and selling the other part of the dried full tailings into cement plants. The paste prepared by the method is stable in concentration, high in packing efficiency and high in utilization rate of the tailings; meanwhile, the full tailings can be sold to the cement plants for manufacturing cement; the waste is turned into wealth; the benefits of the mines are increased.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a method for preparing a whole tailings paste. Background technique [0002] With the advantages of no segregation, no dehydration, and no stratification, paste filling has gradually become the development direction of filling mining technology in the 21st century. However, the technical requirements for paste preparation are high, which is mainly reflected in the homogenization and stirring of the paste, and the precise control of the paste concentration. Among them, the precise control of the concentration is the key. At present, the concentration control mainly relies on the deep cone thickener. If the concentration of the tailings underflow of the thickener is high, the design concentration can be achieved by adding water, but if the underflow concentration of the thickener is lower than the design value, it cannot be achieved. Adjustment can only stop filling, which greatly ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
Inventor 吴爱祥王洪江王少勇陈辉艾纯明孙伟李公成
Owner UNIV OF SCI & TECH BEIJING
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