CN109453903B - Filling type flotation column - Google Patents
Filling type flotation column Download PDFInfo
- Publication number
- CN109453903B CN109453903B CN201811410267.2A CN201811410267A CN109453903B CN 109453903 B CN109453903 B CN 109453903B CN 201811410267 A CN201811410267 A CN 201811410267A CN 109453903 B CN109453903 B CN 109453903B
- Authority
- CN
- China
- Prior art keywords
- column body
- flotation
- section
- column
- flotation column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Paper (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a filling type flotation column, which comprises a flotation column body, wherein the upper section of the flotation column body is provided with a driving motor, the driving motor is connected with a transmission shaft, and the transmission shaft is arranged in the flotation column body; the control box is arranged on one side of the support frame at the upper section of the column body and is electrically connected with the driving motor; the concentrate outlet is arranged on the side wall of the bottom of the upper section of the column body; the middle section of the flotation column includes: the steady flow regulating and controlling device is provided with a plurality of horizontal steady flow filling plates which are sleeved on the transmission shaft in parallel, and the middle parts of the horizontal steady flow filling plates are respectively provided with a rotating motor; the slurry inlet is arranged on the side wall of the column body; the column body lower section includes: the air inlet is communicated with a bubble generator arranged in the flotation column body; and a tailing outlet, wherein a tailing valve is arranged on the tailing outlet. The packed flotation column provided by the invention can be used for favorably regulating and controlling the flow field in the flotation process, improving the overall performance of the flotation column and improving the flotation environment of different types of ores.
Description
Technical Field
The invention relates to the technical field of mineral flotation equipment, in particular to a filling type flotation column.
Background
Flotation recovery of fine fraction minerals is one of the major scientific problems faced in the field of modern mineral processing. The flotation column, called flotation column for short, is a mechanical device capable of completing the flotation process of granular minerals. The ore pulp added with the reagent enters a flotation column, and then passes through a bubble generator at the bottom of the flotation column, so that some particles float on bubbles, and the rest particles are retained in the ore pulp and finally discharged through different outlets, thereby achieving the purpose of separating mineral particles. Compared with the flotation machine type equipment which generates high-intensity turbulent flow due to continuous and violent stirring in the flotation process, the flotation column has no strong turbulent flow field inside, and is more favorable for flotation recovery of fine-particle minerals. In addition, the flotation column has the characteristics of simple structure, light weight, large volume, simplicity and convenience in operation, low operating cost, high flotation efficiency, simple process, easiness in automation realization and the like, and becomes a hot research topic and widely-used flotation equipment at home and abroad in recent years. However, the conventional flotation column has the phenomena that the internal flow field is unevenly distributed, a large-scale circulation flow is easily formed, and the like, and the problems can be relieved by generally optimizing the internal structure of the flotation column or adding a filling medium and the like.
The Chinese patent ZL200820158502.7 discloses a flow stabilizing partition plate for gas dispersion and fluid control of a flotation column, which is arranged in the flotation column as a filling medium, improves the flow field environment of the flotation column to a certain extent, and well solves the problems of easy blockage and volume occupation of the filling medium. The flow stabilizing partition plate has the advantages of gas dispersion and fluid control, can improve the flow field characteristics in the flotation column, weaken the phenomena of large-range circulation and the like, and further can improve the recovery rate of fine-fraction minerals. However, after relevant data documents are reviewed, the existing filling media for optimizing the flow field, including the patent, are fixed at specific positions in the flotation column in a specific mode, and belong to 'static' filling, while gas-liquid-solid three-phase fluid in the flotation process is not uniformly distributed in the equipment and has the characteristic of 'dynamic', and the existing flotation column cannot well regulate and control the flow field in the existing flotation column. The flow field characteristics have great influence on the flotation effect of the flotation column, so that the flow field characteristics still have further research and improvement values.
Disclosure of Invention
The invention provides a packed flotation column, aiming at overcoming the defects of the existing packed flotation column in the aspect of regulating and controlling the flow field characteristics in the flotation column.
In order to achieve the above object, the present invention provides a packed flotation column comprising:
the flotation column is characterized by being divided into an upper column section, a middle column section and a lower column section, wherein the upper column section, the middle column section and the lower column section are communicated with one another;
wherein, the cylinder upper segment sets up to trapezium structure, includes:
the driving motor is arranged at the top of the upper section of the column body and is supported by a supporting frame arranged on the upper section of the column body, the driving motor is connected with a transmission shaft, and the transmission shaft is arranged in the flotation column body;
the control box is arranged on one side of the support frame at the upper section of the column body and is electrically connected with the driving motor;
the concentrate outlet is formed in the side wall of the bottom of the upper section of the column body, and is arranged at the lowest point of the trapezoid structure;
the cylinder middle section includes:
the steady flow regulating and controlling device is provided with a plurality of horizontal steady flow filling plates, each horizontal steady flow filling plate is sleeved on the transmission shaft in parallel, a rotating motor is arranged in the middle of each horizontal steady flow plate, and the rotating motor is electrically connected with the driving motor through a connecting wire arranged in the transmission shaft;
the ore pulp inlet is arranged on the side wall of the upper part of the middle section of the column body, and the position of the ore pulp inlet is higher than that of the horizontal steady flow filling plate arranged on the uppermost layer;
the column body lower section includes:
the air inlet is arranged on the side wall of the lower section of the column body and is communicated with the bubble generator arranged at the bottom of the middle section of the column body through a communicating pipe;
and the tailing outlet is arranged at the bottom of the lower section of the column body, and a tailing valve is arranged on the tailing outlet.
The rotating motors between the two adjacent horizontal steady-flow filling plates are arranged in a mutually reverse mode to drive the two adjacent horizontal steady-flow filling plates to rotate in a mutually reverse mode.
The connection relation between each horizontal steady flow filling plate and the transmission shaft is a position-adjustable structure.
And the specification parameters of each horizontal steady flow filling plate are the same, and the specification parameters comprise hole spacing, plate height and horizontal diameter.
The scheme of the invention has the following beneficial effects:
the filling type flotation column weakens large-range circulation in the flotation process through the plurality of layers of horizontal filling plates with the flow stabilizing effect, and is beneficial to the flotation of minerals. Meanwhile, the axial movement speed of mineral particles or bubbles is reduced through the reverse slow rotation of the two adjacent steady flow filling plates, a small-range mixing field beneficial to the flotation of fine-particle minerals is generated, and the flotation index is improved. The operation parameters of the flotation column, including the number, specification, position and autorotation speed of the steady flow filling plates, can be adjusted according to the properties of different ores so as to adapt to different mineral flotation requirements.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the horizontal flow stabilizing filling plate of the present invention.
[ description of reference ]
1-a flotation column; 2-driving the motor; 3-a support frame; 4-a transmission shaft; 5-a control box; 6-concentrate outlet; 7-horizontal steady flow filling plate; 8-rotating the motor; 9-a pulp inlet; 10-an air inlet; 11-a bubble generator; 12-a tailings outlet; 13-tailing valve.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a packed flotation column aiming at the defect of the existing packed flotation column in the aspect of regulating and controlling the flow field characteristics in the flotation column.
As shown in fig. 1, an embodiment of the present invention provides a packed flotation column comprising: the flotation column 1 is characterized by being divided into an upper column section, a middle column section and a lower column section, wherein the upper column section, the middle column section and the lower column section are communicated with one another; wherein, the cylinder upper segment sets up to trapezium structure, includes: the driving motor 2 is arranged at the top of the upper section of the column body, the driving motor 2 is supported by a supporting frame 3 arranged on the upper section of the column body, the driving motor 2 is connected with a transmission shaft 4, and the transmission shaft 4 is arranged in the flotation column body 1; the control box 5 is arranged on one side of the support frame 3 at the upper section of the column body, and the control box 5 is electrically connected with the driving motor 2; a concentrate outlet 6, wherein the concentrate outlet 6 is arranged on the side wall of the bottom of the upper section of the column body at the lowest point of the trapezoid structure; the cylinder middle section includes: the steady flow regulating and controlling device is provided with a plurality of horizontal steady flow filling plates 7, each horizontal steady flow filling plate 7 is sleeved on the transmission shaft 4 in parallel, a rotating motor 8 is arranged in the middle of each horizontal steady flow filling plate 7, and the rotating motor 8 is electrically connected with the driving motor 2 through a connecting wire arranged in the transmission shaft 4; the ore pulp inlet 9 is arranged on the upper side wall of the middle section of the column, and the position of the ore pulp inlet 9 is higher than that of the horizontal steady flow filling plate 7 arranged on the uppermost layer; the column body lower section includes: the air inlet 10 is arranged on the side wall of the lower section of the column body, and the air inlet 10 is communicated with the bubble generator 11 arranged at the bottom of the middle section of the column body through a communicating pipe; and a tailings outlet 12, wherein the tailings outlet 12 is arranged at the bottom of the lower section of the column, and a tailings valve 13 is arranged on the tailings outlet 12.
The invention relates to a filling type flotation column which comprises a flotation column basic structure and filling media, wherein ore pulp enters the flotation column from an ore pulp inlet 9 and is mineralized with bubbles generated by a bubble generator 11, part of concentrate is lifted along with the bubbles and is discharged from a concentrate outlet 6 at the top, and the rest part of concentrate is discharged along with the ore pulp from a tailing outlet 12. The filling medium arranged in the flotation column consists of a plurality of horizontal steady flow filling plates 7, and each horizontal steady flow filling plate 7 is sleeved on the transmission shaft 4 at the center of the flotation column to weaken large-range circulation in the flotation column and optimize the flotation of minerals.
The rotating motor 8 between the two adjacent horizontal steady flow filling plates 7 is arranged in a mutually reverse direction to drive the two adjacent horizontal steady flow filling plates 7 to rotate in a mutually reverse direction, the position of the transmission shaft 4 can be adjusted by sleeving the horizontal steady flow filling plates 7, and the specification parameters of the horizontal steady flow filling plates 7 are the same and comprise hole intervals, plate thickness and horizontal diameter.
According to the filling type flotation column, a small-range mixed field is generated by the mutual reverse rotation of the two adjacent horizontal steady-flow filling plates 7, and the flotation index is improved. Aiming at different ore particles, different flow fields in the flotation column are formed by adjusting the parameters such as the number, the specification, the position, the rotation speed and the like of the horizontal steady flow filling plates 7, so that the flotation device is suitable for the flotation environments required by different ore particles.
In order to facilitate an understanding of the apparatus to which the present invention relates, the following description will be made more clearly and more fully with reference to the following specific examples, in which the settings of the various parameters of the flotation column are as follows:
the height of the flotation column is 3000mm, the diameter is 300mm, the horizontal steady flow filling plate 7 is provided with three layers, the distance between the three layers is 400mm, the horizontal steady flow filling plate 7 is of the same specification, the horizontal steady flow filling plate is made of stainless steel thin plates, the diameter is 280mm, the height is 60mm, and the distance between adjacent thin plates in the horizontal steady flow filling plate is 35 mm.
Embodiment 1: through the test method, the actual ore dressing test of the bauxite is carried out in a laboratory, and the specific test process is as follows: grinding 2kg of bauxite to a particle size of-200, the mesh accounts for 90% (fine particle grade), adding chemicals in advance, mixing the pulp, uniformly feeding the pulp into a flotation column at an apparent liquid velocity of 1cm/s through an ore pulp inlet 9, feeding air at an apparent air velocity of 1.5cm/s through an air inlet 10, generating a bubble group with a Sade diameter of about 0.7mm through a bubble generator 11, and performing reverse mineralization flotation with ore pulp flow. The rotating speed of the horizontal steady-flow filling plate 7 is adjusted by the control box 5 to rotate at a low speed. And after the flotation operation is finished, collecting foam concentrate products, filtering, drying, weighing, preparing samples and analyzing. Through parallel tests, the existence of the horizontal steady flow filling plate 7 and the influence of the rotation speed of the horizontal steady flow filling plate on the bauxite flotation index are examined, and the test results are shown in table 1. The test results show that the addition of the three layers of the horizontal steady flow filling plates 7 can improve the grade and the recovery rate of aluminum in the concentrate, and meanwhile, the horizontal steady flow filling plates 7 are rotated at a low speed, so that the recovery quality of bauxite can be enhanced. However, the rotating speed needs to be limited in a low speed range, and excessive rotating speed can destroy the 'static' flow field environment suitable for the floatation of the fine-particle minerals in the flotation column and influence mineral recovery.
Table 1: effect of the Filler Medium on bauxite flotation index
Embodiment 2: through a computer numerical simulation test, the influence of the horizontal steady flow filling plate 7 on the flow field of the flotation column is researched under a gas-liquid two-phase system. Simulation results show that: compared with the hollow column flotation column, the flotation column provided with the horizontal steady-flow filling plate 7 with slow rotation has the advantage that the flow field structure is obviously improved. The horizontal steady flow filling plate 7 can obviously reduce the descending speed of the air-water mixed phase and increase the residence time of the fluid in the flotation column. When the flotation column is unfilled, a circulation flow is generated over the entire column, and this disadvantage can be significantly reduced by the horizontal flow-stabilizing filling plates 7.
In the description herein, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (4)
1. A filling type flotation column comprises a flotation column body and is characterized in that the flotation column body is divided into an upper column body section, a middle column body section and a lower column body section, and the upper column body section, the middle column body section and the lower column body section are communicated with one another;
wherein, the cylinder upper segment sets up to trapezium structure, includes:
the driving motor is arranged at the top of the upper section of the column body and is supported by a supporting frame arranged on the upper section of the column body, the driving motor is connected with a transmission shaft, and the transmission shaft is arranged in the flotation column body;
the control box is arranged on one side of the support frame at the upper section of the column body and is electrically connected with the driving motor;
the concentrate outlet is formed in the side wall of the bottom of the upper section of the column body, and is arranged at the lowest point of the trapezoid structure;
the cylinder middle section includes:
the steady flow regulating and controlling device is provided with a plurality of horizontal steady flow filling plates, each horizontal steady flow filling plate is sleeved on the transmission shaft in parallel, a rotating motor is arranged in the middle of each horizontal steady flow plate, and the rotating motor is electrically connected with the driving motor through a connecting wire arranged in the transmission shaft;
the ore pulp inlet is arranged on the side wall of the upper part of the middle section of the column body, and the position of the ore pulp inlet is higher than that of the horizontal steady flow filling plate arranged on the uppermost layer;
the column body lower section includes:
the air inlet is arranged on the side wall of the lower section of the column body and is communicated with the bubble generator arranged at the bottom of the middle section of the column body through a communicating pipe;
and the tailing outlet is arranged at the bottom of the lower section of the column body, and a tailing valve is arranged on the tailing outlet.
2. The packed flotation column as recited in claim 1, wherein the rotating motors between two adjacent horizontal flow-stabilizing packing plates are arranged in opposite directions to drive the two adjacent horizontal flow-stabilizing packing plates to rotate in opposite directions.
3. The packed flotation column as recited in claim 2, wherein each horizontal flow stabilizing packing plate is connected to the drive shaft in a position adjustable configuration.
4. The packed flotation column of claim 3, wherein each of the horizontal flow-stabilizing packing plates has the same specification parameters including hole spacing, plate height, and horizontal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811410267.2A CN109453903B (en) | 2018-11-23 | 2018-11-23 | Filling type flotation column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811410267.2A CN109453903B (en) | 2018-11-23 | 2018-11-23 | Filling type flotation column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109453903A CN109453903A (en) | 2019-03-12 |
| CN109453903B true CN109453903B (en) | 2019-12-31 |
Family
ID=65611513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811410267.2A Active CN109453903B (en) | 2018-11-23 | 2018-11-23 | Filling type flotation column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109453903B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586340B (en) * | 2019-09-30 | 2021-11-02 | 郑州大学 | Coarse particle mineral hydraulic flotation equipment and method based on orifice plate hydraulic cavitation bubble formation |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU520132A1 (en) * | 1974-06-10 | 1976-07-05 | Институт минеральных ресурсов | Column Flotation Apparatus |
| US4966687A (en) * | 1985-12-19 | 1990-10-30 | The Standard Oil Company | Method and apparatus for column flotation of mineral matter |
| CN1169626C (en) * | 2001-12-29 | 2004-10-06 | 中南大学 | Flotation column used in bauxite reverse flotation desilicon |
| CN2845915Y (en) * | 2005-10-06 | 2006-12-13 | 黄罕 | Improved spiral static micro bubble floatation column |
| CN105689155B (en) * | 2016-04-08 | 2017-10-24 | 中国矿业大学 | Multi-product flotation column device and method |
| CN107537699B (en) * | 2017-09-12 | 2019-04-02 | 中国矿业大学 | A kind of device for filling in flotation column section |
| CN207463454U (en) * | 2017-10-23 | 2018-06-08 | 尤灵革 | A kind of Packed Flotation Columns |
-
2018
- 2018-11-23 CN CN201811410267.2A patent/CN109453903B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109453903A (en) | 2019-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Schubert | On the optimization of hydrodynamics in fine particle flotation | |
| CN101543739A (en) | Surface modification pulp mixing machine and application thereof | |
| US20180243757A1 (en) | System, method and apparatus for froth flotation | |
| US4960509A (en) | Ore flotation device and process | |
| CN108435440A (en) | A kind of grind floats integrated apparatus and working method | |
| CN209663508U (en) | Flotation unit and floatation equipment including the flotation unit | |
| CA2762841A1 (en) | Improved method and apparatus for froth flotation in a vessel with agitation | |
| CN109453903B (en) | Filling type flotation column | |
| AU2006221915A1 (en) | Method of floating and flotation circuit | |
| CN108636618A (en) | Experiment multistage mineral flotation unit and its application process | |
| CN101439313A (en) | Hydraulic sorting device | |
| CN208340961U (en) | Test mineral floating device | |
| CA2070146C (en) | Method for concentrating ore slurries by means of intensive agitation conditioning and simultaneous flotation, and an apparatus for the same | |
| CN108097471B (en) | Flotation method and flotation equipment for strengthening turbulence intensity of three-phase ore pulp | |
| CN203678299U (en) | Double-shaft forced shear size mixing device | |
| CN112403686A (en) | Coarse-grained mineral dissociation device and method | |
| CN114405683B (en) | Graphite flotation treatment process and device | |
| CN108380399A (en) | Experiment mineral floating device | |
| CN114029128B (en) | Graphite ore crushing, grinding and flotation integrated equipment and method | |
| CN102626671A (en) | Magnetic field ore dressing equipment and using method thereof | |
| CN112691792B (en) | Quality-improving dissociation device and method for coarse-grained minerals | |
| Govender et al. | Hybrid Energy FlotationTM-on the optimization of fine and coarse particle kinetics in a single ro | |
| CN1638873A (en) | Rotor for flotation mechanism and method for directing material flow in flotation machine | |
| Jaszczur et al. | An analysis of the velocity field distribution inside the flotation chamber | |
| Sachinraj et al. | Optimization of Column Flotation for Fine Coal Using Taguchi Method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |