CN102179312B - Large swirl injection flotation column - Google Patents
Large swirl injection flotation column Download PDFInfo
- Publication number
- CN102179312B CN102179312B CN 201010237193 CN201010237193A CN102179312B CN 102179312 B CN102179312 B CN 102179312B CN 201010237193 CN201010237193 CN 201010237193 CN 201010237193 A CN201010237193 A CN 201010237193A CN 102179312 B CN102179312 B CN 102179312B
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- Prior art keywords
- flotation column
- outlet
- opening
- column
- cavity
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- 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
- B03D1/1418—Flotation machines using centrifugal forces
-
- 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
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/1468—Discharge mechanisms for the sediments
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
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Abstract
The invention provides a large swirl injection floatation column, which comprises a floatation column cavity. The outer wall of the floatation column cavity is provided with an opening connected with an ore pulp inlet pipe; a swirl injection aerator is arranged on the ore pulp inlet pipe; and the bottom of the floatation column cavity is provided with more than one opening below which a tailing discharge pipe; and the tailing discharge pipe has a large upper part and a small lower part. In the floatation column, the lower bottom surface is provided with openings connected with conical pipes, namely conical tailing discharge holes are equally divided, a tailing slag sedimentation dead angle does not occur at the bottom of the floatation column without a stirring device, a problem that large tailing discharge holes of the floatation column are blocked is solved, the swirl injection aerator is used for conveying ore pulp in the large floatation column, the diameter of the swirl injectionfloatation column is increased to 5-15 meters, and the single-trough treatment capacity is improved to 2,000-20,000 tons of dry ore per 24 hours, so that the floatation time of the large floatation column is prolonged, the recovery rate can be improved by 1-3 percent, the grade of concentration can be improved, the treatment capacity is improved and energy is greatly saved.
Description
Technical field
The invention belongs to mineral products flotation technology field, relate to a kind of mineral floating equipment, especially a kind of large-size rotational flow sprays flotation column.
Background technology
In the prior art, the floatation equipment of mineral products flotation use comprises flotation column.The ore pulp that contains floating agent is being carried a large amount of air secretly and is being entered flotation column, mixes fully therein then layering, in the foam with the concentrate that flotates, discharge from the top outlet of flotation column, the mine tailing deposition of solid is discharged flotation column in the bottom of flotation column by the mine tailing discharge line of U-shaped.Normally used flotation column in the prior art for so that the air in the ore pulp, medicament fully mix with mineral and contact, will arrange agitating device in flotation column, this device can prevent that also the mine tailing solid from can not discharge in flotation column bottom deposition.But this flotation column with agitating device is because relatively poor to the mixed effect of material, so that concentrate flotation degree is not high, efficient is lower.
The applicant develops a kind of " cyclone jetting hydrosizer ", see the patent No. for details and be 02252728.1 Chinese patent, a kind of swirl injection aerator has been installed in this flotation device, it is installed on the peripheral sidewalls of flotation column, ore pulp can be sneaked into ore pulp with air automatically by this swirl injection aerator, and enter in the flotation column in the mode of spraying, by the parts such as baffle plate are set in flotation column, save agitating device, can be so that ore pulp fully contact in flotation column have improved the concentrate flotation efficiency greatly.
But this cyclone jetting hydrosizer in the prior art maximum gauge of flotation column can only be accomplished 5 meters, single groove 50m
32000 tons for the treatment of capacities per 24 hours.If flotation column is large again; flotation column bottom mine tailing slag deposition Dead Core Problems will appear; so that replace the flotation column of conventional agitating device maximize to meet with bottleneck and can't break through with swirl injection, this flotation effect is good, simple in structure, working service all very easily cyclone jetting hydrosizer can not adapt to bargh's large-scale development need.
So large-scale flotation column of the prior art also all is the structure that adopts in-built agitating device, and can not uses the swirl injection aerator.
Summary of the invention
The object of the invention is to improve the deficiencies in the prior art, provide a kind of use swirl injection aerator to substitute agitating device, and can be so that the mine tailing slag sprays flotation column at the large-size rotational flow that the flotation column bottom does not deposit the dead angle.
The object of the present invention is achieved like this:
A kind of large-size rotational flow sprays flotation column, it comprises a flotation column cavity, at this ore pulp inlet tube the swirl injection aerator is installed, it is characterized in that, the bottom of described flotation column cavity arranges one with upper shed, connection tailings discharging outlet below this opening, the area of the port of export of this outlet is up big and down small outlet less than the area at the arrival end of described cavity bottom opening of this outlet.
Described outlet is in the circle that is shaped as of the cross section of the arrival end of described cavity bottom opening; And/or,
The arrival end of described outlet is several, and described opening evenly distributes on described flotation column cavity bottom surface, and this opening is on average cut apart several taper tailings dischargings outlets of formation with the area of this bottom surface;
On the inside pipe wall of described outlet, can be provided with the spirality fin, form the spiral-flow type outlet.
The cross section of described flotation column can be the multiple section shapes such as circular, oval, square, rhombus or rectangle.
Described outlet is in the circle that is shaped as of the cross section of the arrival end of described cavity bottom opening.
When the arrival end of described outlet was several, described opening can evenly distribute on described flotation column cavity bottom surface, and this opening is on average cut apart several taper tailings dischargings outlets of formation with the area of this bottom surface.
The port of export of described outlet is connected with a mine tailing discharge pipe.
Described outlet can be conical pipe, also can be the ladder conical pipe that the cylinder pipeline section that reduced gradually by some diameters from the arrival end to the port of export couples together.
The junction of each cylinder pipeline section of described ladder conical pipe is preferably the rounding off structure.
On the inside pipe wall of described outlet, can be provided with the spirality fin, form the spiral-flow type outlet.
Described swirl injection aerator can evenly distribute on the outer wall of described flotation column.For example, swirl injection bubble transmitter is that the swirl injection aerator evenly distributes on the sidewall of flotation column trench bottom.And the injection direction of swirl injection aerator is preferably towards flotation column bottom land side cell wall to the ore deposit.
The gross area sum of the described opening on the described cavity bottom surface more area near bottom surface is better.
A preferred version is: the chamber bottom surface of the cavity of described flotation column is for circular, establish seven described outlets on it, the upper port of this outlet i.e. seven described openings is equal-sized circular cross-section opening, the center of circle of one of them opening overlaps with the center of circle of flotation column chamber bottom surface, and other 6 described openings are evenly distributed in the described around openings of center.
In this preferred version, the maximum of the diameter of described opening is 1/3 of described bottom surface diameter.Like this, the circle of 7 openings is tangent each other, and the circle of 6 openings on every side is all tangent with the outer rim of bottom surface.
Another preferred version is: the chamber bottom surface of the cavity of described flotation column is rectangle, establish six described outlets on it, the upper port of this outlet i.e. six described openings is equal-sized circular cross-section opening, and its matrix form with two row, three row is arranged.
Maximum at opening diameter described in this preferred version is 1/3 of the long limit of rectangle, is 1/2 of rectangle minor face.Like this, the circle of 6 openings is tangent each other, and tangent with the outer rim of bottom surface.
The cone angle of described conical pipe is greater than 0 °, less than 90 °, between 1 ° to 89 °; Optimum taper angle is 45 ° to 75 °.
The size of this cone angle can be decided according to the kind of mine tailing.
Flotation column cavity of the present invention, it can be the flotation column of any type of the prior art, for example, it comprises flotation cell and the foam tank that is connected, on the sidewall of the bottom of this flotation cell, be respectively equipped with ore pulp import and mine tailing outlet with the bottom, the upper mine tailing discharge pipe that connects of mine tailing outlet is discharged the mine tailing ore pulp.Be provided with the concentrate outlet at foam tank; Also connect the U-shaped pipe in the bottom of cavity.Difference is exactly, pipeline in the ore pulp import is installed the swirl injection aerator, correspondingly, the improved flotation cell structure that is 200620167417.8 and is called in " swirl injection flotation column and flotation unit that a kind of ore pulp cyclone flotation is used " with the patent No. of the applicant application also is applicable to described flotation column of the present invention, core main points of the present invention are by the flotation column bottom in the mine tailing outlet some openings to be set, on average cut apart the outlet of taper tailings discharging, thereby for the large-scale flotation column of diameter greater than 5 meters, cancelled agitating device wherein.Facility same as the prior art on the flotation column repeats no more in the present invention.
Large-size rotational flow provided by the invention sprays flotation column, by at its bottom surface opening being set, connection conical pipe or notch cuttype Taper Pipe below this opening be not so that in the situation that agitating device is not set, mine tailing slag deposition dead angle can occur in the bottom of flotation column yet.Technical scheme of the present invention takes on average to cut apart the outlet of taper tailings discharging in the flotation column bottom, solved flotation column maximization tailings discharging outlet blockage problem, can in large-scale flotation column, use swirl injection aerator transfer ore pulp, by above-mentioned improvement, can be so that the diameter of swirl injection flotation column be increased to diameter more than 5 meters, then can reach 15 meters, single groove treating capacity (do ore deposit) is brought up to per 24 hours 2 kilotons-20,000 ton.Thus, can be so that the flotation time of large-scale flotation column prolong, the rate of recovery can improve 1%-3%, can also improve concentrate grade, in addition, energy efficient greatly when disposal ability is improved.
Description of drawings
Fig. 1 is the structural representation that large-size rotational flow provided by the invention sprays its cavity bottom outlet of demonstration of flotation column;
Fig. 2 is flotation column bottom surface upper shed distributed architecture schematic diagram in a kind of preferred version;
Fig. 3 is flotation column bottom surface upper shed distributed architecture schematic diagram in the another kind of preferred version;
Fig. 4 is that the master of large-size rotational flow injection flotation column provided by the invention looks the broken section structural representation.Fig. 5 is the sectional structure schematic diagram with the outlet of spiral ridge;
Fig. 6 is the plan structure schematic diagram with the outlet of spiral ridge;
Fig. 7 is the main sectional structure schematic diagram of ladder conical pipe.
The specific embodiment
As shown in Figure 1 and Figure 4, a kind of large-size rotational flow provided by the invention sprays flotation column, and its diameter is greater than 5 meters.This flotation column comprises a flotation column cavity 1, in this flotation column cavity 1 outer wall upper shed, connect ore pulp inlet tube 11, at this ore pulp inlet tube swirl injection aerator 12 is installed, arrange one with upper shed in the bottom of flotation column cavity 1, be provided with in the present embodiment 7 openings 13, connection conical outlet pipe 2 is used for tailings discharging below each opening 13, the port of export of this outlet area less than the area of described cavity bottom opening, be up big and down small conical pipe 2.
This conical pipe 2 is preferably eddy flow conical pipe 21, namely shown in Fig. 5,6, is provided with spiral ridge 21a at the inside pipe wall of conical pipe, so that the Tailings Slurry that flows through in this outlet flows through rotatably, like this, can prevent the delay of slag on the outlet tube wall.
Described outlet can also be notch cuttype conical pipe 22 as shown in Figure 7.Also spiral ridge can be set on the wall within it.
Described opening 13 can evenly distribute on flotation column cavity 1 chamber bottom surface.The port of export of the outlet 2 below each opening is connected with a mine tailing discharge pipe 4 by a transition conduit 3.
Described swirl injection aerator 12 can evenly distribute on the outer wall of described flotation column.For example, swirl injection bubble transmitter is that the swirl injection aerator evenly distributes on the sidewall of flotation column trench bottom, injection direction towards flotation column trench bottom side cell wall to the ore deposit.
Key of the present invention is by opening the bottom surface of flotation column chamber to be cut apart, and connects taper (notch cuttype) pipe below the opening, so that do not have slag deposition dead angle on the bottom surface.Therefore, more the area near bottom surface is better for the gross area sum of the described opening on the bottom surface of described cavity chamber.
The cross section of described flotation column can be circular, oval, square, rhombus or rectangle.
Described opening is circular open.
As shown in Figure 2, described flotation column chamber bottom surface is circular, described opening 11 is 7 to be become preferred, each opening 11 is equal-sized circular open, the circle of one of them opening overlaps with the center of circle of the bottom surface of flotation column, and other 6 described openings are evenly distributed in the described around openings of center.The diameter of described opening is 1/3 of described bottom surface diameter.Like this, the circle of 7 openings is tangent each other, and the circle of 6 openings on every side is all tangent with the outer rim of bottom surface.
As shown in Figure 3, the bottom surface of described flotation column chamber is rectangle, and described opening 11 is preferably 6, and each opening 11 is equal-sized circular open, and it lines up two row, three column matrix shapes.Described opening diameter is 1/3 of the long limit of rectangle, is 1/2 of rectangle minor face.Like this, the circle of 6 openings is tangent each other, and tangent with the outer rim of bottom surface.
Described conical pipe comprises that the cone angle of eddy flow conical pipe and stairstepping conical pipe can be for greater than 0 °, and less than 90 °, between 1 ° to 89 °, optimum taper angle is 45 ° to 75 °.The size of this cone angle can be decided according to the kind of mine tailing.
Claims (13)
1. a large-size rotational flow sprays flotation column, it comprises a flotation column cavity, in this flotation column chamber outer wall upper shed, connect the ore pulp inlet tube, at this ore pulp inlet tube the swirl injection aerator is installed, it is characterized in that: the bottom of described flotation column cavity arranges more than one opening, connection tailings discharging outlet below this opening, the area of the port of export of this outlet is up big and down small outlet less than the area at the arrival end of described cavity bottom opening of this outlet; The arrival end of described outlet is several, and described opening evenly distributes on described flotation column cavity bottom surface, and this opening is on average cut apart several taper tailings dischargings outlets of formation with the area of this bottom surface.
2. spray flotation column according to the described large-size rotational flow of claim l, it is characterized in that: described outlet is in the circle that is shaped as of the cross section of the arrival end of described cavity bottom opening; And/or,
Inside pipe wall at described outlet is provided with the spirality fin, forms the spiral-flow type outlet.
3. spray flotation column according to claim l or 2 described large-size rotational flows, it is characterized in that: the cross section of described flotation column is circular, oval, square or rhombus; Perhaps,
Described outlet is conical pipe, or the ladder conical pipe that couples together of the cylinder pipeline section that is reduced gradually by some diameters from the arrival end to the port of export.
4. spray flotation column according to claim l or 2 described large-size rotational flows, it is characterized in that: the port of export of described outlet is connected with a mine tailing discharge pipe.
5. spray flotation column according to the described large-size rotational flow of claim l, it is characterized in that: described swirl injection aerator evenly distributes on the outer wall of described flotation column.
6. large-size rotational flow according to claim 5 sprays flotation column, it is characterized in that: described swirl injection aerator evenly distributes on the sidewall of flotation column trench bottom.
According to claim 5 or 6 described large-size rotational flows spray flotation columns, it is characterized in that: the injection direction of described swirl injection aerator is towards flotation column trench bottom side channel wall.
8. large-size rotational flow according to claim 1 sprays flotation column, it is characterized in that: the bottom surface of the chamber of described flotation column cavity is for circular, establish seven described outlets on it, the upper port of this outlet i.e. seven described openings is equal-sized circular open, the center of circle of one of them described opening overlaps with the center of circle of the bottom surface of flotation column chamber, and other six described openings are evenly distributed in the described around openings of center; Perhaps,
The chamber bottom surface of the cavity of described flotation column is rectangle, establishes six described outlets on it, and the upper port of this outlet i.e. six described openings is equal-sized circular open, and its matrix form with two row, three row is arranged.
9. large-size rotational flow according to claim 8 sprays flotation column, and it is characterized in that: the maximum of the diameter of described opening is the l/3 of described bottom surface diameter.
10. large-size rotational flow according to claim 8 sprays flotation column, it is characterized in that: the maximum of described opening diameter is the l/3 on the long limit of described bottom surface rectangle, is the l/2 of this rectangle minor face.
11. large-size rotational flow according to claim 3 sprays flotation column, it is characterized in that: the cone angle of described conical pipe is greater than 0 °, less than 90 °.
12. large-size rotational flow according to claim 11 sprays flotation column, it is characterized in that: the cone angle of described conical pipe is l ° to 89 °.
13. large-size rotational flow according to claim 12 sprays flotation column, it is characterized in that: the cone angle of described conical pipe is 45 ° to 75 °.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010237193 CN102179312B (en) | 2010-07-22 | 2010-07-22 | Large swirl injection flotation column |
| PCT/CN2010/076186 WO2012009871A1 (en) | 2010-07-22 | 2010-08-20 | Large cyclone spraying flotation column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010237193 CN102179312B (en) | 2010-07-22 | 2010-07-22 | Large swirl injection flotation column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102179312A CN102179312A (en) | 2011-09-14 |
| CN102179312B true CN102179312B (en) | 2013-10-23 |
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ID=44565711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010237193 Expired - Fee Related CN102179312B (en) | 2010-07-22 | 2010-07-22 | Large swirl injection flotation column |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102179312B (en) |
| WO (1) | WO2012009871A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641786B (en) * | 2011-05-06 | 2016-06-01 | 李宾 | A kind of can the swirl injection flotation column of smooth and easy discharge mine tailing |
| CN102649103B (en) * | 2011-12-14 | 2013-10-23 | 李宾 | Swirl jetting flotation column of polygonal tube body |
| CN105664544B (en) * | 2016-03-29 | 2018-12-04 | 中国恩菲工程技术有限公司 | Concentrator |
| CN105697060B (en) * | 2016-03-29 | 2019-03-12 | 中国恩菲工程技术有限公司 | Sand warehouse |
| CN105664545B (en) * | 2016-03-29 | 2018-12-04 | 中国恩菲工程技术有限公司 | Underground concentrator |
| CN105697058B (en) * | 2016-03-29 | 2019-03-01 | 中国恩菲工程技术有限公司 | Sand warehouse |
| CN111570082B (en) * | 2020-06-03 | 2022-03-08 | 瓮福（集团）有限责任公司 | Combined separation process for high-sesqui medium-low grade silico-calcic phosphorite |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU419253A1 (en) * | 1970-06-24 | 1974-03-15 | FLOATING MACHINE | |
| FI87893C (en) * | 1991-06-05 | 1993-03-10 | Outokumpu Research Oy | Methods of enriching ore suspension by means of vigorous preparatory mixing and simultaneous flotation and devices for carrying out this |
| AUPN961296A0 (en) * | 1996-05-01 | 1996-05-23 | Outokumpu Mintec Oy | Dual outlet pulp level control system for flash flotation devices |
| CN2431047Y (en) * | 2000-07-07 | 2001-05-23 | 中国矿业大学（北京校区） | Bidirectionally inflating jet flotation column |
| FI115447B (en) * | 2002-03-18 | 2005-05-13 | Outokumpu Oy | Flotation plant and method |
| CN2766961Y (en) * | 2005-01-11 | 2006-03-29 | 李宾 | Rotary stream force field flotation column |
| CN201214072Y (en) * | 2006-12-11 | 2009-04-01 | 李宾 | Rotational flow injecting flotation column and flotation unit for pulp rotational flow flotation |
| CN201871426U (en) * | 2010-07-22 | 2011-06-22 | 李宾 | Large cyclone jetting flotation column |
-
2010
- 2010-07-22 CN CN 201010237193 patent/CN102179312B/en not_active Expired - Fee Related
- 2010-08-20 WO PCT/CN2010/076186 patent/WO2012009871A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN102179312A (en) | 2011-09-14 |
| WO2012009871A1 (en) | 2012-01-26 |
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