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Concentration plant and method for beauxite tailings

A technology for concentration device and tailings, which is applied to the bauxite tailings concentration device and the concentration field, can solve the problems of increasing the transportation cost, increasing the area of ​​the tailings pond, and conveying a large amount of slurry.

Inactive Publication Date: 2006-07-26
SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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  • Abstract
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Problems solved by technology

The concentration of the underflow concentrated by the current tailings concentration device and method is only about 22%. If the concentrated underflow is directly discharged into the tailings pond, there will be the following technical problems: the amount of slurry to be transported is large, and the transportation cost will be increased; The area of ​​the tailings pond is enlarged, facing safety and environmental problems; settlement and water return are difficult, increasing fresh water consumption

Method used

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  • Concentration plant and method for beauxite tailings
  • Concentration plant and method for beauxite tailings
  • Concentration plant and method for beauxite tailings

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Embodiment Construction

[0015] Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, but the scope of protection of the present invention is not limited to

[0016] limited by the examples.

[0017] Such as figure 2 As shown, the tailings concentration device of the present invention is composed of a settling tank 5 connected to the ore dressing tailings conveying pipeline 1, a concentrated underflow pump 3 and a conveying pipeline 4 connected to the bottom discharge port of the settling tank 5 at the inlet end constitute.

[0018] Such as image 3 As shown, the settling tank 5 adopts a settling tank whose ratio of the diameter to the height of the straight section of the tank body is ≥ 1.0, and the settling tank diameter is ≤ 18 meters.

[0019] The tailings concentration method, the ore dressing tailings enter the settling tank 5, add flocculant to the settling tank for concentration, the flocculant is one of inorganic acid, starch, po...

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Abstract

The invention relates a concentration device and method used for concentrating tailings of bauxite. The device comprises settling bath connected with tailings delivery pipe, concentration pump, the entrance of which is connected with settling bath, and delivery pipe. The invention improves the tailings concentration, reduces the delivery ore pulp content, decreases the area of tailing, and increases the backwater ratio.

Description

Technical field [0001] The invention relates to a concentrating device and a concentrating method, in particular to a tailings concentrating device and a concentrating method suitable for bauxite. Background technique [0002] At present, the beneficiation of middle and low grade bauxite has been industrialized. However, there are still some problems in the bauxite beneficiation process, among which the dehydration of flotation tailings needs to be solved urgently. In the industrial process flow, the flotation tailings are concentrated using a traditional thickener, and the structure of the thickening device is as follows: figure 1 As shown, the beneficiation tailings with a concentration of about 6% enter the concentrator 2 for concentration, and the concentrated underflow is transported through the concentration underflow pump 3 and the delivery pipeline 4 . The concentration of the underflow concentrated by the current tailings concentration device and method is only ab...

Claims

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Application Information

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IPC IPC(8): B01D21/01
Inventor 于传敏葛长礼王宝奎刘常林
Owner SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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