CN106334627A - Flotation column and method for separating ore pulp through same - Google Patents
Flotation column and method for separating ore pulp through same Download PDFInfo
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- CN106334627A CN106334627A CN201610930922.1A CN201610930922A CN106334627A CN 106334627 A CN106334627 A CN 106334627A CN 201610930922 A CN201610930922 A CN 201610930922A CN 106334627 A CN106334627 A CN 106334627A
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- China
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- cylinder
- ultrasonic probe
- flotation column
- ore pulp
- column according
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Classifications
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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
-
- 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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
- B03D2203/08—Coal ores, fly ash or soot
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention relates to the field of material separation and provides a flotation column and a method for separating ore pulp through the same. The flotation column and the separation method aim to lower mechanical mixing between hydrophilic materials and hydrophobic materials and improve the overflow product quality and the separation accuracy. The flotation column comprises a column body, a bubble generator and ultrasonic probes, an overflow port is formed in the top end of the column body, a feeding port is formed in the side wall of a separation cylinder body, the bubble generator and the ultrasonic probes are arranged inside the column body, and the bubble generator can provide ascending bubbles for the column body.
Description
Technical field
The present invention relates to the fall ash desulfurizer of coarse slime is and in particular to a kind of flotation column and use in a kind of coal preparation technique
Its method carrying out sorting coal.
Background technology
, as China's main energy sources, in primary energy production and consumption total amount, proportion is considerably long in future for coal
70% about is all will be maintained in period.For meeting the demand to the energy for the rapid economic development, mechanical coal mining technology constantly pushes away
Extensively, coal mining amount increases year by year, and coal washing task is very arduous.At present, flotation be graded shot and superfine granule fine coal
Ripe, effective method, and realize industrializing.However, constantly deepening with coal mining depth, fine slime is in raw coal
Proportion persistently increases, and thin, miscellaneous, the difficult feature of coal resources in China itself, and market in addition requires day to quality of cleaned coal
Benefit is harsh, comprehensively leads to particulate and micro-size fraction coal slurry content in float coal mud constantly to increase, coal slime floatability be deteriorated and be in into
One step degradating trend, slime separation effect difference and in the urgent need to efficient separation, using the contradiction between a large amount of coal slimes.
With the increase entering particulate and micro-size fraction ratio in float coal mud, coal slime flotation process proposes more to floatation equipment
High requirement.Current slime separation equipment mainly has shallow-slot type flotation device and colossal order flotation column.Wherein, flotation device multiple-grooved string
Connection, power of motor from the first Room to last room, stirring intensity, aeration quantity all same are it is impossible to meet the floated characteristic of material
Require with the more and more poor sorting of assorting room；Cell body is shallow, and cleaned coal froth bed is thin, non-foam refining process；Height is carried secretly in foam
Grey thin mud is many, poor selectivity, and the efficiency of separation is low；Impeller and nozzle wear are serious, and maintenance load is big, and maintenance cost is high；Take up an area
Area is big, needs space for maintenance big, construction investment is high；Power consumption is big.Therefore, traditional flotation device no longer adapt to particulate and fine
The sorting of the big difficult-to-float coal of grain size content.Flotation column sorting advantage to superfine material high selectivity because of it, in flotation technology
Field shows powerful vitality, is increasingly paid attention to by industry, and theoretical research and popularization and application become coal separation industry
Focus.But flotation column (refers specifically to granularity and is less than 0.045mm coal in the big coal slime of process particulate and micro-size fraction coal slurry content
The coal slime that the content of grain is more than 50%) when yet suffer from: high ash thin mud passes through mechanical entrapment, thin mud and the cleaned coal of cleaned coal foam
Particle shape becomes floc sedimentation, and the mode such as thin mud cover lid cleaned coal particle surface pollutes cleaned coal, leads to floatation clean coal ash content to be generally higher than essence
Product of coal quality requirement, gravity treatment cleaned coal " back of the body ash " is serious, the economic benefit of the smart coal yield of impact and enterprise.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of machinery that can reduce between hydrophilic material and drainage material
Mix, improve the flotation column of overflow product quality and sharpness of separation and the method carrying out sorting coal using it.
A kind of flotation column of the present invention, comprising: cylinder, air bubble generator and ultrasonic probe；
The top of described cylinder is provided with overfall；The side wall of described sorting cylinder is provided with dog-house；
Described air bubble generator and described ultrasonic probe are respectively arranged in described cylinder；Described air bubble generator can
Produce the bubble rising in described cylinder intracavity.
Preferably, described ultrasonic probe being radially arranged along described cylinder.
Preferably, length in described cylinder for the described ultrasonic probe is 0.25-1 times of described column diameter.
Preferably, the quantity of described ultrasonic probe is multiple, and multiple described ultrasonic probe is along described column axis
Direction spacing setting.
Preferably, the spacing of the adjacent described ultrasonic probe of any two is 5-30cm.
Preferably, the spacing of the adjacent described ultrasonic probe of any two is 10-20cm.
Preferably, the bottom of described cylinder has discharge gate.
Preferably, the bottom of described cylinder is funnel-form.
Preferably, also include: feeder；Described feeder is arranged at the lateral wall of described sorting cylinder.
A kind of method being carried out using any of the above-described kind of flotation column sorting ore pulp of the present invention, is comprised the steps:
A. described air bubble generator produces the bubble of rising in described cylinder；Start ultrasonic probe so that ultrasonic wave
Probe forms the ultrasonic wave field of force in described cylinder；
B. ore pulp to be sorted is thrown in into described cylinder by described dog-house；
C. ore pulp forms sorting under the comprehensive function of self gravitation, rising bubble and the ultrasonic wave field of force；Wherein in ore pulp
Hydrophobic granule with rise bubble and rise, and eventually through overfall flow out described cylinder；Hydrophilic granules in ore pulp exist
It is settled down to the bottom of cylinder under self gravitation effect,.
Flotation column provided by the present invention is due to introducing ultrasonic probe, the ultrasonic wave field of force energy of ultrasonic probe formation
Enough promote dispersion in flotation column for the material particles, increase the probability of hydrophobic granule and bubble hit, attachment and adhesion, improve essence
The rate of recovery of coal particle；The oscillation action of ultrasonic wave can strengthen bubble to the thin mud particle of mechanical entrapment or hydrophobicity relatively simultaneously
The removing effect of weak particle, realizes selected to product.
Brief description
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
In embodiment or description of the prior art, the accompanying drawing of required use is briefly described.In all of the figs, similar element
Or partly typically identified by similar reference.In accompanying drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is a kind of structural representation of flotation column of the present invention.
Reference:
1- cylinder
11- overfall
12- dog-house
13- discharge gate
2- air bubble generator
3- ultrasonic probe
4- feeder
Specific embodiment
Below in conjunction with accompanying drawing, the embodiment of technical solution of the present invention is described in detail.Following examples are only used for
Clearly technical scheme is described, is therefore only used as example, and the protection model of the present invention can not be limited with this
Enclose.
As shown in figure 1, as a kind of specific embodiment, flotation column provided by the present invention includes: cylinder 1, bubble produce
Raw device 2 and ultrasonic probe 3.The top of cylinder 1 is provided with overfall 11, and side wall is provided with dog-house 12.Overfall 11 is used for
The spilling of drainage material (cleaned coal), wherein in order to collect the material flowing out from overfall 11, the present invention is also in the lateral wall of cylinder 1
Setting feeder 4, the drainage material flowing out from overfall 11 can fall directly into feeder 4 and be collected.Dog-house 12 is used for
Throw in material to be sorted into cylinder 1.Air bubble generator 2 and ultrasonic probe 3 are respectively arranged in cylinder 1；Bubble produces
Device 2 is used for producing the bubble rising in cylinder 1, and the bubble of generation can form froth bed on the top of cylinder 1, in order to realize this
Air bubble generator 2 specifically can be arranged at bottom or the position near bottom of cylinder 1 inner chamber by effect.Ultrasonic probe 3 is used
In providing the ultrasonic wave field of force, so that concussion is formed to the material in cylinder 1.It is all edge in assorting room in view of each material particles
The axis direction of cylinder 1 rises or falls, therefore in order to reach the optimal concussion to material particles and dispersion effect, the present invention
In ultrasonic probe 3 should be arranged with the direction vertical with the material particles direction of motion, ultrasonic probe 3 should in other words
Radial direction setting along cylinder 1.
Because produced by ultrasonic probe 3, ultrasonic wave field of force covering radius is limited, therefore in order to ensure in main body 1
All can be covered by the ultrasonic wave field of force it should take measures respectively in the circumferential and axial of main body 1 respectively everywhere, feasible
Scheme at least includes:
In the circumferential: at the sustained height of cylinder 1, visited with the axis of cylinder 1 for the multiple ultrasonic wave of axis annular array
3 so that the ultrasonic wave field of force of multiple ultrasonic probe 3 covers the cross section of cylinder 1；Or at the sustained height of cylinder 1
One ultrasonic probe 3 is only set, but experiments verify that only the length in cylinder 1 is column diameter when ultrasonic probe 3
When 0.25-1 times, the effect that cylinder 1 cross section is completely covered can be reached.
In the axial direction: multiple along (preferably equidistant) setting of axial direction (i.e. at the differing heights of cylinder) spacing of cylinder 1
Ultrasonic probe 3.Experiment proves that, when the line space design of ultrasonic probe 3 adjacent for any two is 5-30cm, substantially
Ensure that the ultrasonic wave field of force that the plurality of ultrasonic probe 3 axially arranged along cylinder 1 produces covers cylinder in the axial direction
Each position；And when being 10-20cm by the line space design of ultrasonic probe 3 adjacent for any two, then any two is adjacent
The ultrasonic wave field of force produced by ultrasonic probe 3 just non-overlapping or overlapping less, i.e. the ultrasonic wave field of force is in cylinder 1 axially
On be evenly distributed, and then make to be located at the material particles at differing heights in cylinder 1 and be subject to concussion uniformly, thus being more conducive to sort
The carrying out of task.
Flotation column provided by the present invention is due to introducing ultrasonic probe 3, the ultrasonic wave field of force of ultrasonic probe 3 formation
Dispersion in flotation column for the material particles can be promoted, increase the probability of hydrophobic granule and bubble hit, attachment and adhesion, improve
The rate of recovery of cleaned coal particle；The oscillation action of ultrasonic wave can strengthen bubble to the thin mud particle of mechanical entrapment or hydrophobicity simultaneously
The removing effect of weaker particle, realizes selected to material.
The method being carried out using flotation column of the present invention sorting ore pulp, is comprised the steps:
A. air bubble generator 2 produces the bubble rising in cylinder 1；Start ultrasonic probe 3 so that ultrasonic probe 3
Form the ultrasonic wave field of force in cylinder 1；
B. ore pulp to be sorted is thrown in into cylinder 1 by dog-house 12；
C. ore pulp forms sorting under the comprehensive function of self gravitation, rising bubble and the ultrasonic wave field of force；Wherein in ore pulp
Hydrophobic granule with rise bubble and rise, and eventually through overfall 11 flow out cylinder 1；Hydrophilic granules in ore pulp are certainly
It is settled down to the bottom of cylinder 1 under body Action of Gravity Field, form tail coal product.And amass in order to avoid tail coal product is formed in cylinder 1
Poly-, the present invention can arrange discharge gate 13 in the bottom of cylinder 1, so that tail coal product is quilt when reaching cylinder 1 bottom
Discharge.Further, the bottom of cylinder 1 can also be designed as funnel-form, water conservancy diversion effect is formed with the discharge to tail coal product.
The detailed process that in above-mentioned steps c, material forms sorting in cylinder is:
C1. the bubble being generated by air Bubble generating apparatus 2 moves in cylinder 1 upwards, and the bubble moving upwards is transported with downward
There is adverse current mineralising phenomenon in dynamic ore pulp, wherein hydrophobic granule adheres to bubble formation mineral laden bubble, and in bubble lifting action
Under move upwards, enter cylinder top froth bed；Hydrophilic granules not with bubble adhesion, and be to continue with moving downward；Thus it is real
Show hydrophobic granule to separate by particle with hydrophilic granules；
C2. enter froth bed in mineral laden bubble the ultrasonic wave field of force and froth bed secondary enrichment comprehensive function under, foam
The gangue particle of the mechanical entrapment particle weaker with bubble adhesion comes off from bubble and moves downward, and strong with bubble adhesion
Hydrophobic granule continues up, and finally enters feeder 4 with foam overflow, forms overflow product (head coal product)；
C3. the particle coming off from bubble during moving downward,
Or adhere to again with the bubble moving upwards, repeat the above steps c1 and c2；
Or move downward, and with ore pulp in do not collect with the hydrophilic granules of bubble adhesion enter main body 1 inner chamber bottom
Portion, and finally discharge cylinder 1 inner chamber from discharge gate 13, form tail coal product.
It should be noted that unless otherwise stated, technical term used in this application or scientific terminology should be this
The ordinary meaning that bright one of ordinary skill in the art are understood.
In the description of the present application it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation of instruction such as pin ", " counterclockwise ", " axial ", " radially ", " circumferential " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must
Must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction or hint are relatively important
Property or the implicit quantity indicating indicated technical characteristic.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In this application, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
Connect or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to concrete feelings
Condition understands above-mentioned term concrete meaning in the present invention.
In this application, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible
It is the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the specification of the present invention, illustrate a large amount of details.It is to be appreciated, however, that embodiments of the invention are permissible
Put into practice in the case of there is no these details.In some instances, known method, structure and skill are not been shown in detail
Art, so as not to obscure the understanding of this description.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combine.
Finally it is noted that various embodiments above, only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that: its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme, it all should be covered in the middle of the claim of the present invention and the scope of specification.
Claims (10)
1. a kind of flotation column is it is characterised in that include: cylinder, air bubble generator and ultrasonic probe；
The top of described cylinder is provided with overfall；The side wall of described sorting cylinder is provided with dog-house；
Described air bubble generator and described ultrasonic probe are respectively arranged in described cylinder；Described air bubble generator can be in institute
State cylinder intracavity and produce the bubble rising.
2. a kind of flotation column according to claim 1 it is characterised in that described ultrasonic probe along described cylinder radial direction
Setting.
3. a kind of flotation column according to claim 2 is it is characterised in that length in described cylinder for the described ultrasonic probe
Spend 0.25-1 times for described column diameter.
4. a kind of flotation column according to claim 1 it is characterised in that described ultrasonic probe quantity be multiple, and
Multiple described ultrasonic probes are arranged along described column axis direction spacing.
5. a kind of flotation column according to claim 4 is it is characterised in that any two adjacent described ultrasonic probe
Spacing is 5-30cm.
6. a kind of flotation column according to claim 4 is it is characterised in that any two adjacent described ultrasonic probe
Spacing is 10-20cm.
7. a kind of flotation column according to claim 1 is it is characterised in that the bottom of described cylinder has discharge gate.
8. a kind of flotation column according to claim 7 is it is characterised in that the bottom of described cylinder is funnel-form.
9. a kind of flotation column according to claim 1 is it is characterised in that also include: feeder；Described feeder is arranged at
The lateral wall of described sorting cylinder.
10. a kind of usage right requires any one described flotation column of 1-9 to carry out the method sorting ore pulp, comprises the steps:
A. described air bubble generator produces the bubble of rising in described cylinder；Start ultrasonic probe so that ultrasonic probe
Form the ultrasonic wave field of force in described cylinder；
B. ore pulp to be sorted is thrown in into described cylinder by described dog-house；
C. ore pulp forms sorting under the comprehensive function of self gravitation, rising bubble and the ultrasonic wave field of force；Dredging wherein in ore pulp
Particle water flows out described cylinder with the bubble rising by overfall；Hydrophilic granules in ore pulp settle under self gravitation effect,
Bottom to cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930922.1A CN106334627A (en) | 2016-10-31 | 2016-10-31 | Flotation column and method for separating ore pulp through same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930922.1A CN106334627A (en) | 2016-10-31 | 2016-10-31 | Flotation column and method for separating ore pulp through same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106334627A true CN106334627A (en) | 2017-01-18 |
Family
ID=57840692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610930922.1A Pending CN106334627A (en) | 2016-10-31 | 2016-10-31 | Flotation column and method for separating ore pulp through same |
Country Status (1)
| Country | Link |
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| CN (1) | CN106334627A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177396A (en) * | 2017-06-29 | 2017-09-19 | 广东固特超声股份有限公司 | Energy-collecting ultrasonic ripple desulfurizer |
| CN107705283A (en) * | 2017-06-14 | 2018-02-16 | 华北理工大学 | Particle and bubble hit detection method based on Otsu image segmentation |
| CN114713380A (en) * | 2021-10-19 | 2022-07-08 | 中国矿业大学 | Coarse particle flotation device and method based on coupling of ultrasonic waves and mechanical damping blocks |
| WO2022241532A1 (en) * | 2021-05-17 | 2022-11-24 | Vale S.A. | Method and system for ore processing with application of ultrasound to the flotation froth |
-
2016
- 2016-10-31 CN CN201610930922.1A patent/CN106334627A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705283A (en) * | 2017-06-14 | 2018-02-16 | 华北理工大学 | Particle and bubble hit detection method based on Otsu image segmentation |
| CN107705283B (en) * | 2017-06-14 | 2020-11-17 | 华北理工大学 | Particle and bubble collision detection method based on Otsu image segmentation |
| CN107177396A (en) * | 2017-06-29 | 2017-09-19 | 广东固特超声股份有限公司 | Energy-collecting ultrasonic ripple desulfurizer |
| WO2022241532A1 (en) * | 2021-05-17 | 2022-11-24 | Vale S.A. | Method and system for ore processing with application of ultrasound to the flotation froth |
| CN114713380A (en) * | 2021-10-19 | 2022-07-08 | 中国矿业大学 | Coarse particle flotation device and method based on coupling of ultrasonic waves and mechanical damping blocks |
| CN114713380B (en) * | 2021-10-19 | 2022-12-27 | 中国矿业大学 | Coarse particle flotation device and method based on coupling of ultrasonic waves and mechanical damping blocks |
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Application publication date: 20170118 |
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