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Double-flow injection-type floatation method and double-flow injection-type floatation device

An injection type, flotation cell technology, used in flotation, solid separation and other directions, can solve the problem of the uneven distribution of bubbles and bubbles, and achieve the effect of good aeration performance, uniform bubble distribution and good flotation effect.

Inactive Publication Date: 2013-04-03
广西华锡集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But how to control the number of bubbles, the size of the bubbles, the uniformity of the bubble distribution, and how to improve the efficiency of the whole machine have not yet been a good method, which needs further research

Method used

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  • Double-flow injection-type floatation method and double-flow injection-type floatation device
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  • Double-flow injection-type floatation method and double-flow injection-type floatation device

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Embodiment 1

[0020] Example 1: Compared with the cumulative index of Chehe concentrator industrial test and the cumulative index of the flotation machine currently used in this plant: in the case of equivalent raw ore grade, the Pb grade in the concentrate has increased by 0.10%, and the Zn grade has increased by 1.37% %, the Pb recovery rate increased by 4.93%, and the Zn recovery rate increased by 4.11%. The flotation performance of the flotation machine is better than that of the flotation machine currently used in the plant, which proves that the flotation machine has a good flotation effect and meets the design requirements.

[0021] The double-flow injection flotation method and its device of the present invention have the following advantages: both the pulp and the compressed air are sprayed into the flotation cell (1) in the form of multiple streams of fluids, blended and collided and mixed, and then merged into the flotation cell (1). A swirling flow is formed in the flotation cel...

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Abstract

The invention relates to a double-flow injection-type floatation method and a double-flow injection-type floatation device, which is mainly used for floatation of metal, nonmetal ores and chemical materials. The floatation device comprises a floatation trough body (1), a stirring impeller (3) which is fixedly installed on the lower end of a main shaft (2), a stator mechanism (4), an air inlet pipe (6), a pulp inlet pipe (5) and a one-way valve (7) which is installed above the head part of the air inlet pipe. By adopting the method for respectively injecting ore pulp flow and airflow into the floatation trough body (1), the ore pulp is adequately mixed and mineralized with the air inside the floatation trough body (1) so as to realize the sorting. The double-flow injection flotation method and device have the beneficial effects that compared with the prior art, the air is more efficiently mixed with the ore pulp, the inflation performance is better, the inflation volume can reach 1.4 to 1.7m<3> / m<2> per min, the bubbles are more and are uniformly distributed, the inflation homogeneity can reach 88 to 92 percent, the inflation volume can be adjusted within a large range, and a good floatation effect can be realized.

Description

Technical field: [0001] The invention belongs to the technical field of mineral processing equipment, and more specifically relates to a double-flow injection type flotation method and a device thereof. Background technique: [0002] The Dachang mining area is a cassiterite polymetallic sulfide ore, and there are many kinds of useful minerals in the ore. The main minerals are cassiterite, sphalerite, brittle pyrotite, pyrite, pyrrhotite, arsenopyrite and a small amount of arsenopyrite. Lead ore, sphalerite, chalcopyrite, zurtzite. Gangue minerals are mainly quartz and calcite. The elements with industrial value in ore are tin, lead, antimony, zinc, sulfur, arsenic and associated rare and precious elements indium, cadmium, gallium, gold and silver. The rich ore resources in the mining area have been gradually exhausted after decades of mining, and the ore processed at present is mainly lean ore, and the grade is declining year by year. Among them, the fire-burned tin polym...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/16
Inventor 陈锦全吴伯增胡明振
Owner 广西华锡集团股份有限公司
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