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Method for processing monohydrallite ore washing gangue

A bauxite and ore washing technology, which is applied in the field of bauxite washing tailings processing, can solve the problems of high concentration and sedimentation speed, difficult tailings treatment, unfavorable water resource recovery, etc., to achieve improved efficiency and low cost , to achieve the effect of flocculation and sedimentation

Active Publication Date: 2013-09-25
YUNNAN WENSHAN ALUMINUM
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  • Summary
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large proportion of fine-grained particles in the tailings and the high viscosity, the concentrated sedimentation speed is slow and the concentrated underflow concentration is low, making tailings treatment difficult and unfavorable for water resource recovery
[0004] Therefore, the current method of processing bauxite washing tailings still needs to be improved.

Method used

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  • Method for processing monohydrallite ore washing gangue
  • Method for processing monohydrallite ore washing gangue
  • Method for processing monohydrallite ore washing gangue

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Experimental program
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Effect test

Embodiment 1

[0031] refer to figure 1 , according to the following method, determine the time of the second concentrated settlement in the method for processing bauxite washing tailings of the present invention:

[0032] Samples and reagents: bauxite washing tailings with a concentration of 7%;

[0033] Flocculant (Yunnan Fenghuo Technology Co., Ltd. FHG-A15 mining polymer flocculant, sometimes referred to as "FGH-A15 flocculant" in this article).

[0034] method:

[0035] First, the above-mentioned bauxite washing tailings are transported to the high-efficiency thickener (Huaibei Mining Machinery) model NZT-50, and FHG-A15 flocculant is added to it, so as to conduct the first Concentrate and settle for 100 minutes to obtain the first concentrated underflow with a concentration of 20%, wherein 200 grams of the flocculant is added to each ton of bauxite washing tailings. After weighing the dry weight, the ratio of the dry weight to the wet weight is the underflow concentration.

[0036]...

Embodiment 2

[0042] refer tofigure 1 According to the method of the present invention, the bauxite washing tailings (concentration is 7%) are processed according to the following steps:

[0043] First, transport the bauxite washing tailings to the NZT-50 high-efficiency thickener, and add FHG-A15 flocculant to it, so that the bauxite washing tailings can be concentrated and settled for 110 minutes to obtain a concentration of 20 % of the first concentrated underflow, wherein 200 grams of the flocculant is added to each ton of bauxite washing tailings.

[0044] Next, the first concentrated underflow is pumped to the ore washing tailings pipeline, where it is mixed with bauxite ore washing tailings in a weight ratio of 10:3, and FHG-A15 flocculant is added to the mixture, and then Transported to the aforementioned high-efficiency concentrator, so as to carry out the second concentrated sedimentation for 110 minutes, to obtain the second concentrated bottom flow with a concentration of 30%. ...

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Abstract

The invention discloses a method for processing monohydrallite ore washing gangue. The method includes: conveying first monohydrallite ore washing gangue to an efficient thickener so as to perform first concentration sedimentation on the first monohydrallite ore washing gangue, and first concentration underflow can be obtained; the first concentration underflow can be collected and mixed with second monohydrallite ore washing gangue to be conveyed to the efficient thickener, second concentration sediment can be performed, and second concentration underflow can be obtained; the second concentration underflow can be conveyed to a filter press for filter pressing, and solid-liquid separation can be obtained. The method for processing monohydrallite ore washing gangue is easy and convenient, fast, efficient and less in energy consumption, does not need to add additional devices compared with a conventional method, requires low cost, is good in solid-liquid separation effect, can fully recycle water in the gangue, accordingly can effectively save water resources and avoid environment pollution, and is particularly suitable for processing the monohydrallite ore washing gangue which is tiny in granule, large in viscosity, not apt to settle and difficult to process by adopting a conventional method.

Description

technical field [0001] The invention relates to a method for processing bauxite washing tailings. Background technique [0002] Bauxite washing requires a lot of water, and the water entering the tailings needs to be recycled as much as possible, and it can also protect the environment and save water resources. Therefore, how to quickly separate the tailings from solid and liquid and make full use of water resources has become a problem that must be solved in bauxite washing. [0003] Usually, more than 50% of the mass of bauxite washing tailings is fine-grained (-0.037mm), and the concentration of tailings after washing operations is also relatively low, generally 5%-8%. At this stage, water resources are mainly recovered by flocculation and sedimentation through high-efficiency thickeners. However, due to the large proportion of fine-grained particles in the tailings and the high viscosity, the concentrated sedimentation speed is slow and the concentrated underflow conce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B01D36/04
Inventor 代延鹏贺强郝红杰杨德荣邓书朝严根潘祖恩田轮邹少坤随长江杨双龙罗朝宇陈映赵粉
Owner YUNNAN WENSHAN ALUMINUM
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