Flotation process adopting flotation column to regrading scheelite instead of flotation machine

A flotation column and flotation machine technology, applied in the field of scheelite flotation, can solve the problems of unstable beneficiation index, low degree of automation, high labor intensity, etc., to improve labor environment, reduce labor intensity, and high degree of automation Effect

Inactive Publication Date: 2012-09-12
CHINA MOLYBDENUM
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Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, the present invention proposes a scheelite concentrating process that uses flotation columns instead of flotation machines, so that it can solve the problems of low concentrate grade, high labor intensity, and automation in scheelite flotation. Problems of low and unstable beneficiation index

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  • Flotation process adopting flotation column to regrading scheelite instead of flotation machine
  • Flotation process adopting flotation column to regrading scheelite instead of flotation machine
  • Flotation process adopting flotation column to regrading scheelite instead of flotation machine

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Embodiment Construction

[0018] Such as figure 1 As shown, a scheelite beneficiation process that uses flotation columns instead of flotation machines is to use flotation column technology in the scheelite beneficiation after roughing scheelite ore to conduct several times of beneficiation of rough concentrate , the selected tailings are also fine-swept several times using flotation columns to obtain higher-grade scheelite concentrates. The steps are as follows:

[0019] 1. Rough concentrate is obtained from scheelite after rough separation, and the coarse concentrate is concentrated into about 70% ore pulp. Add caustic soda at about 200±10 grams per ton of coarse concentrate, heat to 92-95°C, and keep warm for two Hours off the drug.

[0020] 2. The heated and demedicated coarse concentrate enters a stirring tank for slurry adjustment, so that the concentration of the ore slurry is between 20% and 30%;

[0021] 3. Then enter the flotation column for fine and rough selection, and the fine and rough ...

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Abstract

The invention belongs to the technical field of scheelite flotation, and discloses a flotation process adopting a flotation column to regrading scheelite instead of a flotation machine, wherein, the flotation column technology is adopted in scheelite regrading after the scheelite is processed through rough concentration; rough concentrate is regraded repeatedly; well-chosen tailings are also processed through fine scavenging for a plurality of times by adopting the flotation column so as to obtain scheelite concentrate with high grade, that is, the rough concentrate is obtained after rough concentration; ore slurry that is concentrated is then processed through heating, reagent removal and size mixing, so that the ore slurry can enter the flotation column for fine roughing when the contraction of the ore slurry ranges from 20 to 30 percent; foam products obtained in the fine roughing enter a regrading area comprising at least one flotation column and are regraded once or repeatedly, so as to obtain high-grade scheelite concentrate; and the tailings obtained in the fine roughing enter a fine scavenging area, and the tailings that are processed through fine scavenging are conveyed to a tailing dam or return for scheelite roughing. The flotation process can obtain scheelite concentrate with higher grade, the operation energy consumption of the flotation column is low, the mineral dressing index is increased, the labor environment can be improved, the labor intensity is reduced, and smoother production can be ensured.

Description

technical field [0001] The invention belongs to the technical field of scheelite flotation, and mainly relates to a flotation process for selecting scheelite by using a flotation column instead of a flotation machine. Background technique [0002] At present, black tungsten ore in my country has been exploited, and the tungsten industry is facing severe challenges. Since 2007, Luoyang Luanchuan Molybdenum Industry Group Co., Ltd. has built two scheelite concentrators to recover scheelite from floating molybdenum tailings. It can produce nearly 10,000 tons of scheelite each year, realizing an output value of more than 800 million yuan. At present, the recovery of scheelite adopts the process of roughing at room temperature, heating the coarse concentrate to remove the drug and then refining; the roughing adopts advanced flotation column technology, and the refining adopts flotation machine flotation. Flotation with flotation machines has problems such as low concentrate gra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00
Inventor 王选毅雷春强吴铁生薛明向简建军辛亚涛王立兴杨冬明邓双丽张兆金李玉坤王向辉
Owner CHINA MOLYBDENUM
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