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Columnar flotation device for micro-fine particle minerals

A flotation device and column-type technology, applied in the field of fine-grained mineral column-type flotation devices, can solve the problems of consuming pulp energy and wasting energy consumption, and achieve the effects of good mineralization effect, wide adaptability and large specific gravity.

Active Publication Date: 2018-12-07
甘肃省合作早子沟金矿有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The self-suction air-intake type uses the change of the flow velocity of the pulp in the variable-diameter pipe to generate negative pressure, and the air bubbles are generated by the self-suction air in the connection with the outside world. This method consumes the energy of the pulp and causes waste of energy consumption.

Method used

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  • Columnar flotation device for micro-fine particle minerals
  • Columnar flotation device for micro-fine particle minerals
  • Columnar flotation device for micro-fine particle minerals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The ore of a gold mine in Gansu belongs to fine-grained dissemination, containing antimony, arsenic, carbon and other harmful elements. The particle size of the gold inlay is fine, the mineral mud is serious, the oxidation rate is high, the hardness of gold-bearing minerals varies greatly, and the recovery rate of dressing and smelting is low. Process flow and parameters: After the raw ore is crushed, it enters the grinding system with a designed daily processing capacity of 2,000 tons and an actual processing capacity of 2,400 tons. After two stages of closed-circuit grinding, the -200 mesh reaches more than 85%, and the concentration is 21%+-2. The flotation system, after one fine, one coarse, three fine, and four sweeps, the tailings grade is about 1.25g / t, and the tailings are concentrated and classified by 6 sets of 250 cyclones, the bottom flow concentration is 50%, and the fineness is -200 mesh 40 %, the tailings after regrinding and re-selection and the overflow ...

Embodiment 2

[0071] A column type flotation device, comprising a flotation column cylindrical shell (1), a concentrate overflow tank (2) located outside the upper part of the shell, an air duct (3) located at the inner bottom of the flotation column shell, and a The slurry feeder (4) on the upper part of the flotation column, the slurry feeder is connected to the ore inlet pipeline (41), and is located in the middle of the flotation column shell with a tailings discharge outlet (5). The body is also provided with a concentrate discharge port (7), the position of the concentrate discharge port (7) is higher than the tailings discharge port (5), the lower part of the shell is a cone structure, and the cone structure The bottom is equipped with an emergency gate valve port (6), and the tailings discharge port (5) and the emergency gate valve port (6) are all equipped with valve controls;

[0072] The connection between the slurry feeder (4) and the ore inlet pipeline (41) is an annular pipeli...

Embodiment 3

[0082] A column type flotation device, comprising a flotation column cylindrical shell (1), a concentrate overflow tank (2) located outside the upper part of the shell, an air duct (3) located at the inner bottom of the flotation column shell, and a The slurry feeder (4) on the upper part of the flotation column, the slurry feeder is connected to the ore inlet pipeline (41), and is located in the middle of the flotation column shell with a tailings discharge outlet (5). The body is also provided with a concentrate discharge port (7), the position of the concentrate discharge port (7) is higher than the tailings discharge port (5), the lower part of the shell is a cone structure, and the cone structure The bottom is equipped with an emergency gate valve port (6), and the tailings discharge port (5) and the emergency gate valve port (6) are all equipped with valve controls;

[0083] The connection between the slurry feeder (4) and the ore inlet pipeline (41) is an annular pipeli...

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Abstract

The invention discloses a columnar flotation device. The columnar flotation device comprises a flotation column columnar shell, a concentrate overflow trough located on the outer side of the upper portion of the shell, air pipes located at the inner bottom of the flotation column shell and a pulp feeder located on the inner upper portion of a flotation column. The pulp feeder is connected with a mineral feeding pipeline, and a tailing discharging opening is arranged in the middle of the flotation column shell. The shell is further provided with a concentrate discharging opening, and the position of the concentrate discharging opening is higher than that of the tailing discharging opening. The lower portion of the shell is of a cone structure, an accident emergency gate valve opening is mounted at the bottom of the cone structure, and the tailing discharging opening and the accident emergency gate valve opening are both provided with valves for control. The columnar flotation device ishigh in flotation pulp flow speed, large in collision probability with bubbles, high in turbulent degree, good in mineralization effect, capable of recycling micro-fine particle minerals well and meeting the requirement of the micro-fine particle mineral separation process and wide in application range.

Description

technical field [0001] The invention relates to a column type flotation device for microfine minerals, in particular to a column type device for the flotation process of microfine minerals. Background technique [0002] Flotation technology is an economical and effective sorting method in the field of mining to enrich useful minerals that can reach the standard metal content for smelting from natural primary ores. The selected equipment mainly includes mechanical agitation flotation machines and non-mechanical agitation flotation machines. [0003] The development of mechanical agitation flotation machines has a history of many years at home and abroad, and the technology is becoming more and more mature. However, this type of equipment has unavoidable shortcomings. Due to high energy consumption and strong interference in the mechanical stirring area, the fine mineral particles carried by the air bubbles after mineralization are easily affected by it and fall off, resultin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/24B03D1/14B03D1/02
CPCB03D1/025B03D1/1456B03D1/1468B03D1/24B03D1/242
Inventor 姜桂鹏王春光秦洪波张君林刘忠堂吴洋
Owner 甘肃省合作早子沟金矿有限责任公司
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