Three-product cyclone micro-bubble flotation column separation equipment and method

A micro-bubble flotation column and three-product technology, which is applied in flotation, cyclone device, solid separation, etc., can solve the problem that the filter press dehydration operation is difficult to carry out normally, which affects the economic benefit of the clean coal recovery rate of the enterprise, and the tailing coal runs rough. To achieve the effect of flexible product structure adjustment, reducing mechanical entrainment pollution, and ensuring the quality of clean coal

CN103480502BActive Publication Date: 2016-01-20CHINA UNIV OF MINING & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-01-20

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Abstract

The invention discloses separation equipment with three-product cyclone micro-bubble flotation columns and a separation method implemented by the separation equipment. The separation equipment mainly comprises a water spray pipe, a froth concentrate tank, an upper flotation column, a lower flotation column, a middling discharge pipe, a circulating pulp pipe, a feeding pipe, a tailing pipe and the like. The separation method includes serially arranging the upper flotation column and the lower flotation column in a staggered manner; arranging the middling discharge pipe at the lower end of the upper flotation column; organically combining serial flotation, sedimentation flotation and column flotation with one another to repeatedly and continuously concentrate concentrate products, reduce high-dust fine slime pollution to the greatest extent and guarantee the quality of flotation concentrated tailing products. The separation equipment and the separation method have the advantages that the separation equipment is simple in structure and can be operated easily and conveniently, additional power and additional chemical consumption are omitted, the products are flexible in structure, the problem of conflict among separation efficiency, energy consumption and chemical consumption can be effectively solved, and the technical difficult problem of poor separation effect for coal slime with high concentration and high-dust fine slime content and poor selectivity can be effectively solved; the height proportion of the upper flotation column to the lower flotation column can be flexibly adjusted, so that the separation equipment and the separation method are adaptive to variation of flotability of minerals.
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Description

technical field

[0001] The invention relates to a three-product cyclone micro-bubble flotation column separation equipment and method, especially suitable for the separation of coal slime with high concentration, high ash fine mud content and poor selectivity, and also suitable for the separation of other minerals. Background technique

[0002] With the improvement of coal mining mechanization in my country, the deterioration of resource geological conditions, the large-scale construction of coal preparation plants and the wide application of dense medium cyclones, the proportion of high-ash and difficult-to-separate fine-grained coal has increased sharply, and some of them have been floating in raw coal -0.074 The fine slime content of mm size is as high as 90%, and the buoyancy of the slime is very poor, and the progress is showing a worsening trend, which makes the contradiction of the slime separation more prominent. Coal slime separation becomes micro-fine particle separa...

Examples

Embodiment Construction

[0017] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0018] figure 1 As shown, the three-product cyclone micro-bubble flotation column separation equipment of the present invention is mainly composed of a spray water pipe 1, a foam concentrate collection tank 2, a flotation column, a medium ore discharge pipe 4, a circulating pulp extraction pipe 5, and a circulation Ore slurry feeding pipe 6, circulating ore slurry pump 7, bubble generator 8, pressure gauge 9, feed pipe 11, steady flow plate 13, conical cylinder 14, tailings pipe 15 constitute. The flotation column is composed of an upper flotation column 3 and a lower flotation column 12, the upper flotation column 3 and the lower flotation column 12 are connected in series through the elbow 10, and the lower part of the upper flotation column 3 is provided with a middle mine Discharge pipe 4, described feeding pipe 11 is arranged on the top of lower flota...