CN215940300U - High-efficient mechanical stirring formula flash flotation device - Google Patents
High-efficient mechanical stirring formula flash flotation device Download PDFInfo
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- CN215940300U CN215940300U CN202122252130.2U CN202122252130U CN215940300U CN 215940300 U CN215940300 U CN 215940300U CN 202122252130 U CN202122252130 U CN 202122252130U CN 215940300 U CN215940300 U CN 215940300U
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Abstract
The utility model discloses a high-efficiency mechanical stirring type flash flotation machine, which comprises a flotation tank body, generally consisting of a plurality of working units which are connected in series, wherein each working unit comprises the flotation tank body, the center of the lower part of each flotation tank body is respectively provided with a false bottom, a plurality of flow deflectors are uniformly arranged on each false bottom, the center of each flotation tank body is respectively provided with a stirring driving device and a stirring impeller, the upper part of each stirring impeller is provided with a stator cover plate, the periphery of each stator cover plate is provided with a plurality of stator blades, the number and the positions of the plurality of stator blades are respectively arranged corresponding to the plurality of flow deflectors, foam guide plates are respectively arranged in each flotation tank body by taking the stirring driving device as the center towards two sides, the upper parts of the plurality of foam guide plates are respectively provided with a spray water tank, the upper parts of the plurality of spray water tanks are respectively provided with a water inlet pipe, and the lower parts of the plurality of spray water tanks are respectively provided with a plurality of spray water pipes, a plurality of flotation cell bodies all are provided with the foam outflow, and the inside section of a plurality of flotation cell bodies all is provided with the turbulent grid.
Description
Technical Field
The utility model relates to the field of coal slime flotation devices, in particular to a high-efficiency mechanical stirring type flash flotation machine.
Background
Froth flotation is a common method for separating minerals from a fine ore slurry, with mechanical agitation flotation machines being the most widely used. In the flotation machine, the ore pulp treated by adding the medicament is stirred and aerated to ensure that certain ore particles are selectively fixed on the bubbles; floating to the surface of the ore pulp, being scraped to form foam products, and the rest part is remained in the ore pulp so as to achieve the purpose of separating minerals.
However, the foam scraping mechanism of the existing flotation equipment generates disturbance on the foam layer, the flow state of the mineralized collecting area interferes with the stability of the foam layer, and when the aeration quantity is large to a certain degree, the problems that the liquid level is turned over, the separation precision and the processing capacity are limited and the like can be caused, so that the high-efficiency mechanical stirring type flash flotation machine is provided.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a high-efficiency mechanical stirring type flash flotation machine, which solves the problems of disturbance of a foam layer by a foam scraping mechanism of the prior flotation equipment, interference of a flow state of a mineralized collecting area on the stability of the foam layer, liquid level flowering caused by large aeration quantity, limited separation precision and processing capacity and the like by arranging an optimized flotation structure, and provides the high-efficiency mechanical stirring type flash flotation machine.
In order to solve the technical problems, the utility model provides the following technical scheme: a high-efficiency mechanical stirring type flash flotation machine comprises a flotation tank body, which is generally formed by connecting a plurality of working units in series, each working unit comprises a flotation tank body, the center of the lower part of each flotation tank body is respectively provided with a false bottom, each false bottom is provided with a plurality of flow deflectors which are uniformly arranged, the center of each flotation tank body is provided with a stirring driving device and a stirring impeller, the upper part of each stirring impeller is provided with a stator cover plate, the periphery of each stator cover plate is provided with a plurality of stator blades, the number and the positions of the plurality of stator blades are respectively arranged corresponding to the plurality of flow deflectors, each flotation tank body is internally provided with foam guide plates by taking the stirring driving device as the center and towards two sides, the upper parts of the plurality of foam guide plates are respectively provided with a spraying water tank, the upper parts of the plurality of spraying water tanks are respectively provided with a water inlet pipe, and the lower parts of the spraying water tanks are respectively provided with a plurality of spraying water pipes, it is a plurality of the flotation cell body all is provided with the foam flow export, and is a plurality of the inside section of flotation cell body all is provided with the turbulent grid, and first work cell outside bottom is provided with the pan feeding pipe, and the last work cell outside is provided with the tailing case, be provided with ore pulp liquid level guiding mechanism on the tailing case, set up the middlings case through middle submergence formula between two flotation cell bodies and communicate mutually.
As a preferable technical scheme of the utility model, an inclined plate assembly is arranged in the middling box, an included angle of seventy degrees is formed between the inclined plate assembly and the horizontal plane, and the length of the inclined plate assembly is more than one thousand millimeters.
As a preferable technical scheme of the utility model, a plurality of the spray water pipes are respectively and correspondingly arranged in an upper closed space formed by the corresponding foam outflow port, the side wall of the flotation tank body and the foam guide plate.
Compared with the prior art, the utility model can achieve the following beneficial effects:
1. the inclined plate assembly arranged in the middling box has the separation effect according to the density of the ore pulp, so that the bubbles with low density and the ore pulp with higher density are more effectively separated, and the mineralized bubbles are effectively prevented from entering the next flotation tank body and the tailing box along with the ore pulp flow; meanwhile, the reverse washing effect of the spray water on the top of the conical space formed by the side wall of the flotation tank body and the foam guide plate on the ascending bubble flow is exerted, so that the technical scheme provided by the utility model can ensure that the flotation process can operate under the operation condition far higher than the conventional flotation aeration quantity, the non-selective entrainment pollution of mineralized bubbles on non-target minerals is reduced, the separation efficiency of a single tank of the flotation machine is improved, and the particle bubble mineralization efficiency and the single-tank pulp treatment capacity are greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of a working unit of a flotation machine of the present invention;
FIG. 2 is a schematic view of the flotation cell assembly of the present invention;
fig. 3 is a schematic view of the structure of the ore box of the present invention.
Wherein: 1. a flotation tank body; 2. false bottom; 3. a flow deflector; 4. a stirring drive device; 5. a stirring impeller; 6. a stator cover plate; 7. a stator vane; 8. a foam guide plate; 9. a spray water tank; 10. a water inlet pipe; 11. a foam outflow; 12. a feeding pipe; 13. a middling box; 14. a tailing tank; 15. a pulp liquid level adjusting mechanism; 16. a turbulent flow grid; 101. a spray header; 131. a tilt plate assembly.
Detailed Description
The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example (b):
as shown in fig. 1-3, the present invention provides a high efficiency mechanical agitation type flash flotation machine, which comprises a flotation tank body 1, generally comprising a plurality of working units connected in series, each working unit comprises a flotation tank body 1, a dummy bottom 2 is respectively arranged at the center of the lower part of each flotation tank body 1, a plurality of flow deflectors 3 are uniformly arranged on each dummy bottom 2, a stirring driving device 4 and a stirring impeller 5 are respectively arranged at the center of each flotation tank body 1, a stator cover plate 6 is arranged at the upper part of each stirring impeller 5, a plurality of stator blades 7 are arranged at the periphery of each stator cover plate 6, the number and the positions of the plurality of stator blades 7 are respectively arranged corresponding to the plurality of flow deflectors 3, foam guide plates 8 are respectively arranged in each flotation tank body 1 from the stirring driving device 4 to both sides, a spray water tank 9 is arranged at the upper parts of the plurality of foam guide plates 8, a water inlet pipe 10 is arranged at the upper parts of the plurality of spray water tanks 9, the lower parts of the plurality of spraying water tanks 9 are respectively provided with a plurality of spraying water pipes 101, the plurality of flotation tank bodies 1 are respectively provided with a foam outflow port 11, the inner sections of the plurality of flotation tank bodies 1 are respectively provided with a turbulent flow grid 16, the bottom of the outer side of the first working unit is provided with a feeding pipe 12, the outer side of the last working unit is provided with a tailing tank 14, the tailing tank 14 is provided with an ore pulp liquid level adjusting mechanism 15, and the two flotation tank bodies 1 are communicated with each other through a middling tank 13 arranged in a middle immersion manner;
when the device works, the fed slime water is added with a flotation reagent and is subjected to size mixing in an ore pulp preprocessor (not shown in the figure), then enters the flotation tank body 1 through a feeding pipe 12 of a first working unit of a flotation unit by virtue of pressure difference, is driven by a stirring driving device 4 to rotate in a space formed by a stator cover plate 6 and a plurality of stator blades 7 on the periphery of the stator cover plate, because ore pulp is thrown out of the stirring impeller 5, vacuum is formed in an inner cavity of the stirring impeller 5, air is sucked in through a sleeve of the stirring driving device 4, collision between bubbles and ore pulp particles occurs at the intersection of an outlet of the stirring impeller 5 and the stator blades 7 to mineralize the particles, so as to form mineralized bubble aggregates, the mineralized bubbles sprayed out of the stator blades 7 are diffused along the cross sections by a plurality of corresponding guide plates 3 and are uniformly distributed on the cross section of the flotation tank body 1, float upwards and enter a conical space formed by the side wall of the flotation tank body 1 and a foam guide plate 8 after being rectified by a turbulence grid 16, the mineralized bubble aggregate moves upwards in the space to form a dynamic foam area, and the dynamic foam is washed and purified in a counter-current manner through a spray water pipe 101 and then is discharged out of the flotation machine through a foam outflow port 11; the entrainment amount of the foam aggregate to the ore pulp can be controlled by controlling the spraying water amount, and further the concentrate grade is regulated and controlled. The ore pulp enters the next flotation cell working unit through the middling box 13 arranged between the flotation cell bodies 1, the inclined plate component 131 is arranged in the middling box 13 and can effectively separate mineralized bubble aggregates and the ore pulp, because the inclined plate component 131 works according to the shallow sedimentation principle and has the effect of separation according to density, after mineralized bubbles enter the space of the inclined plate component 131, because the ratio is small, mineralized bubbles form an upward foam flow layer along the upper part of the space of the inclined plate component 131, ore pulp forms a downward flow layer along the lower layer of the inclined plate component 131 because of higher density, the mineralized bubbles are effectively prevented from entering the next working unit of the flotation tank body 1, the aeration utilization efficiency and the concentrate foam recovery rate of the working unit of the flotation tank body 1 are improved, meanwhile, mineralized particles are prevented from entering the next working unit of the flotation tank to be mineralized repeatedly, so that the number of the required flotation tank units in series connection is reduced. A tailing tank 14 is arranged on the working unit of the tail flotation tank body 1, and the liquid level height of ore pulp in the flotation machine is adjusted through an ore pulp liquid level adjusting mechanism 15 arranged on the tailing tank 14. Because clear foam layers and ore pulp liquid levels are not needed when the working units of each flotation tank body 1 operate, the aim of adjusting the foam recovery rate of concentrate and the grade of concentrate can be achieved by adjusting the aeration quantity and the spraying water quantity of the working units of each flotation tank body 1.
In other embodiments, the middling box 13 is provided with an inclined plate assembly 131, the inclined plate assembly 131 forms an included angle of seventy degrees with the horizontal plane, and the length of the inclined plate assembly 131 is greater than one thousand millimeters;
facilitating the rapid sliding of material off the surface of the inclined plate assembly 131 to the tip designated location.
In other embodiments, a plurality of spray header pipes 101 are respectively and correspondingly arranged in the upper closed space formed by the corresponding foam outflow port 11, the side wall of the flotation tank body 1 and the foam guide plate 8; the countercurrent washing and purification of the dynamic foam area are convenient.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a high-efficient mechanical stirring formula flash flotation machine, includes flotation cell body (1), its characterized in that: generally, the device is composed of a plurality of working units which are connected in series, each working unit comprises a flotation tank body (1), the center of the lower part of each flotation tank body (1) is provided with a false bottom (2) respectively, each false bottom (2) is provided with a plurality of flow deflectors (3) which are uniformly arranged, the center of each flotation tank body (1) is provided with a stirring driving device (4) and a stirring impeller (5), the upper part of each stirring impeller (5) is provided with a stator cover plate (6), the periphery of each stator cover plate (6) is provided with a plurality of stator blades (7), the number and the positions of the stator blades (7) are respectively arranged corresponding to the flow deflectors (3), each flotation tank body (1) is internally provided with a foam guide plate (8) by taking the stirring driving device (4) as the center and arranged towards two sides, and the upper part of the foam guide plate (8) is provided with a spraying water tank (9), it is a plurality of spray tank (9) upper portion all is provided with inlet tube (10), and is a plurality of spray tank (9) lower part all is provided with a plurality of spray header (101), and is a plurality of flotation cell body (1) all is provided with foam flow export (11), and is a plurality of the inside section of flotation cell body (1) all is provided with turbulent grid (16), and first work cell outside bottom is provided with pan feeding pipe (12), and the last work cell outside is provided with tailing case (14), be provided with ore pulp liquid level guiding mechanism (15) on tailing case (14), set up middling case (13) through middle submergence formula between two flotation cell bodies (1) and be linked together.
2. A high efficiency mechanically agitated flash flotation machine according to claim 1 wherein: be provided with hang plate subassembly (131) in middling case (13), be seventy degrees contained angles between hang plate subassembly (131) and the horizontal plane, hang plate subassembly (131) length is greater than one thousand millimeters.
3. A high efficiency mechanically agitated flash flotation machine according to claim 1 wherein: the plurality of spray water pipes (101) are respectively and correspondingly arranged in the upper closed space formed by the corresponding foam outflow port (11), the side wall of the flotation tank body (1) and the foam guide plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122252130.2U CN215940300U (en) | 2021-09-16 | 2021-09-16 | High-efficient mechanical stirring formula flash flotation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122252130.2U CN215940300U (en) | 2021-09-16 | 2021-09-16 | High-efficient mechanical stirring formula flash flotation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215940300U true CN215940300U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122252130.2U Active CN215940300U (en) | 2021-09-16 | 2021-09-16 | High-efficient mechanical stirring formula flash flotation device |
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| CN (1) | CN215940300U (en) |
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2021
- 2021-09-16 CN CN202122252130.2U patent/CN215940300U/en active Active
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