CN208244961U - A kind of cavitation jet flotation bubble generator and flotation unit - Google Patents
A kind of cavitation jet flotation bubble generator and flotation unit Download PDFInfo
- Publication number
- CN208244961U CN208244961U CN201820239128.7U CN201820239128U CN208244961U CN 208244961 U CN208244961 U CN 208244961U CN 201820239128 U CN201820239128 U CN 201820239128U CN 208244961 U CN208244961 U CN 208244961U
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- CN
- China
- Prior art keywords
- flotation
- diffuser
- cavitation jet
- bubble generator
- venturi mixer
- 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.)
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- 238000005188 flotation Methods 0.000 title claims abstract description 80
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 16
- 239000011707 mineral Substances 0.000 claims abstract description 16
- 239000012141 concentrate Substances 0.000 claims description 25
- 239000002245 particle Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 7
- 230000004907 flux Effects 0.000 claims description 3
- 235000010627 Phaseolus vulgaris Nutrition 0.000 abstract description 5
- 244000046052 Phaseolus vulgaris Species 0.000 abstract description 5
- 238000009291 froth flotation Methods 0.000 abstract description 4
- 239000003245 coal Substances 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 230000033558 biomineral tissue development Effects 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000007667 floating Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Abstract
The utility model relates to flotation unit technical fields, specially a kind of cavitation jet flotation bubble generator and flotation unit, it solves the problems, such as that Bed for Fine Coal and mineral can not effectively be overcome to collide mineralising low efficiency and poor selectivity in existing froth flotation mineral, specially a kind of flotation unit with cavitation jet flotation bubble generator, cavitation jet flotation bubble generator includes feeding pipe, pressure-air air inlet pipe, trunnion, diffuser, venturi mixer and air intake duct, the side wall of feeding pipe is provided with pressure-air air inlet pipe, pan feeding bottom of the tube is connected with diffuser, diffuser screw top is connected with trunnion, diffusion bottom of the tube is provided with connecting tube, connecting tube lower part is provided with venturi mixer, venturi mixer is plugged in downcomer, venturi mixer is provided with air intake duct close to the side wall of diffuser.The utility model realizes the function of the non-collision mineralization flotation of fine beans and mineral grain, so that the rate of recovery of subsieve flotation obtains synchronous raising with selectivity.
Description
Technical field
The utility model relates to flotation unit technical field, specially a kind of cavitation jet flotation bubble generator and flotation
Device.
Background technique
Froth flotation is a kind of universal method of sorting mined material from microfine ore pulp, is had using the flotation device of froth flotation
Mechanical stirring is flotation device and air jet flotation machine, and wherein agitation impeller flotator makes gas by the dissection of agitator arm
Bubble, which crushes, generates foam, and foam size is larger, about 1~3mm, and the mineralising mode of particle and bubble mainly collides mineralising, micro-
Particulate collides mineralising low efficiency, poor selectivity；Air jet flotation machine is then that the principle for generating negative pressure using ore pulp injection sucks sky
Gas inflates ore pulp and generates foam to carry out FLOTATION SEPARATION, due to generating negative pressure when the injection of this flotation device ore pulp, sucking
While air, the gas dissolved in ore pulp can also be precipitated in the form of microvesicle, enhances subsieve flotation process, thus micro-
Bed for Fine Coal and mineral floating field are used widely, it is considered to be the substitute technology equipment of agitation impeller flotator, injection
The representative type of formula flotation device is one kind " air jet flotation machine " that Chinese utility model patent 92229333.3 discloses, this is floating
Select machine injecting type agitating device instead of traditional mechanical stirring device, so that the separating effect of fine beans be made to be changed
It is kind.
Although the bubble particle size that air jet flotation machine generates is less than agitation impeller flotator, under the conditions of certain aeration quantity
The gas-liquid interface area for particle bubble contact is improved, and then the collision mineralising for improving particle bubble to a certain extent is general
Rate, but the low efficiency of mineralising is collided since ore particle inertia is small for fine mineral particle, and be easy to carry under one's arms and make in the foam to concentrate
At pollution, the grade of flotation concentrate is reduced.
Therefore, it designs one kind and is guaranteeing the conventional grade efficiency of separation simultaneously, fine beans and mineral can effectively be overcome to collide
The novel floatation equipment of mineralising low efficiency and poor selectivity is an industry field technical problem urgently to be resolved.
Summary of the invention
The utility model in order to solve effectively overcome in existing froth flotation mineral Bed for Fine Coal and mineral collision mineralising
The problem of low efficiency and poor selectivity, provides a kind of cavitation jet flotation bubble generator and flotation unit.
The utility model is achieved by the following technical solution: a kind of cavitation jet flotation bubble generator, including is entered
Expects pipe, pressure-air air inlet pipe, trunnion, diffuser, venturi mixer and air intake duct, feeding pipe top are provided with flange, enter
The side wall of expects pipe is provided with pressure-air air inlet pipe, and pan feeding bottom of the tube is connected with diffuser, and the central cavity of diffuser is upper narrow
Lower wide grading structure, diffuser screw top are connected with trunnion, and diffusion bottom of the tube is provided with connecting tube, the setting of connecting tube lower part
There is venturi mixer, venturi mixer is plugged in downcomer, and venturi mixer is provided with close to the side wall of diffuser
Air intake duct.
The diameter of trunnion is the 1/2~1/3 of pan feeding pipe diameter, and trunnion is greater than at a distance from pressure-air air inlet pipe upper surface
The diameter of feeding pipe, diffuser lower end surface between venturi mixer at a distance from be 1~1.5 times of diffuser lower end surface diameter,
The minimum diameter of venturi mixer is 1.2~2 times of diffuser lower end surface diameter.
The gas pressure applied in pressure-air air inlet pipe is 300~400kPa, and gas flow is dosed by feeding pipe
The 2%~3% of mineral slurry flux.
A kind of cavitation jet flotation unit, including cavitation jet flotation bubble generator, flotation cell and concentrate overflow launder, it is empty
Change jet stream flotation bubble generator lower part and be provided with downcomer, downcomer bottom is connected with ore pulp dispensing head, ore pulp dispensing head and
Downcomer is arranged in flotation cell, and flotation cell lower part is provided with tailing outlet port, is provided with concentrate overflow launder, concentrate on the outside of flotation cell
Overflow launder is provided with concentrate outflow port.
Uniformly divided by the inflation ore pulp of cavitation jet flotation bubble generator by the ore pulp dispensing head for being connected to downcomer
In the section of flotation cell, mineral laden bubble carries concentrate and enters concentrate overflow launder and enter next process by concentrate outflow port cloth, not
The particle of mineralising enters next process by the tailing outlet port of flotation trench bottom with flow of slurry.
The utility model has the beneficial effect that compared with prior art
The utility model provides a kind of cavitation jet flotation bubble generation that can be suitably used for fine beans and mineral floating
Device and flotation unit can generate conventional flotation bubble in the micro-nano air pocket of hydrophobic particle surfaces in-situ preparation and simultaneously, realize
The function of the non-collision mineralization flotation of fine beans and mineral grain, so that the rate of recovery of subsieve flotation and selectivity obtain
It is synchronous to improve.
Detailed description of the invention
Fig. 1 is the utility model cavitation jet stream flotation bubble generator architecture schematic diagram；
Fig. 2 is a kind of cavitation jet flotation bubble generator and flotation unit structural schematic diagram of the utility model.
In figure: 1- cavitation jet flotation bubble generator, 2- downcomer, 3- ore pulp dispensing head, 4- flotation cell, 5- concentrate overflow
Chute, 6- concentrate outflow port, 7- tailing outlet port, 8- feeding pipe, 9- trunnion, 10- diffuser, 11- pressure-air air inlet pipe,
12- connecting tube, 13- venturi mixer, 14- air intake duct.
Specific embodiment
Utility model is further elaborated referring to Figures 1 and 2, a kind of cavitation jet flotation bubble generator, including
Feeding pipe 8, pressure-air air inlet pipe 11, trunnion 9, diffuser 10, venturi mixer 13 and air intake duct 14,8 top of feeding pipe
It is provided with flange, the side wall of feeding pipe 8 is provided with pressure-air air inlet pipe 11, and 8 bottom of feeding pipe is connected with diffuser 10, diffusion
The central cavity of pipe 10 is up-narrow and down-wide grading structure, and 10 screw top of diffuser is connected with trunnion 9, and 10 bottom of diffuser is set
It is equipped with connecting tube 12,12 lower part of connecting tube is provided with venturi mixer 13, and venturi mixer 13 is plugged in downcomer 2,
Venturi mixer 13 is provided with air intake duct 14 close to the side wall of diffuser 10.
The diameter of trunnion 9 is the 1/2~1/3 of 8 diameter of feeding pipe, trunnion 9 and 11 upper surface of pressure-air air inlet pipe away from
From be greater than feeding pipe 8 diameter, 10 lower end surface of diffuser between venturi mixer 13 at a distance from for 10 lower end surface of diffuser it is straight
1~1.5 times of diameter, the minimum diameter of venturi mixer 13 are 1.2~2 times of 10 lower end surface diameter of diffuser.Pressure-air
The gas pressure applied in air inlet pipe 11 is 300~400kPa, and gas flow by feeding pipe 8 dose mineral slurry flux 2%~
3%。
A kind of cavitation jet flotation unit, including cavitation jet flotation bubble generator 1, flotation cell 4 and concentrate overflow launder
5,1 lower part of cavitation jet flotation bubble generator is provided with downcomer 2, and 2 bottom of downcomer is connected with ore pulp dispensing head 3, ore pulp
Dispensing head 3 and downcomer 2 are arranged in flotation cell 4, and 4 lower part of flotation cell is provided with tailing outlet port 7, is provided on the outside of flotation cell 4
Concentrate overflow launder 5, concentrate overflow launder 5 are provided with concentrate outflow port 6.By the inflation mine of cavitation jet flotation bubble generator 1
Slurry is evenly distributed on the section of flotation cell 4 by the ore pulp dispensing head 3 for being connected to downcomer 2, and mineral laden bubble carries concentrate and enters essence
Mine collecting tank 5 enters next process by concentrate outflow port 6, and the particle of non-mineralising is with flow of slurry by the tail of 4 bottom of flotation cell
Mine outlet 7 enters next process.
According to a kind of cavitation jet flotation bubble generator described in the utility model and flotation unit, when work, pan feeding
By flanged joint transfer pipeline, the ore pulp that pressure is 0.18~0.3MPa is penetrated from upper feeding pipe 8 into cavitation at the top of pipe 8
Flotation bubble generator 1 is flowed, while air is pressed by pressure-air air inlet pipe 11, pressure-air is mixed with ore pulp, flows through trunnion 9
When, since local static pressure reduces suddenly at trunnion 9, the gas in ore pulp is big in the form of micro-nano air pocket in hydrophobic particle surfaces
Amount is precipitated, and is attached to hydrophobic particulate surface, the ore pulp containing micro-nano air pocket through diffuser high speed ejection, with downcomer 2
Junction forms negative pressure, and air enters downcomer 2 through air intake duct self-priming and tears since the high intensity of ore pulp is turbulent into microvesicle, attached
There is the hydrophobic granule of micro-nano air pocket and microvesicle to collide in the high turbulent environment of downcomer 2 mineralising, form particle bubble
Gas floc sedimentation is evenly distributed on the section of flotation cell 4 via the ore pulp dispensing head 3 of 2 lower part of downcomer；Particle bubble gas floc sedimentation is floating
It selects to rise in slot 4 and float, and form froth bed on 4 top of flotation cell, further enter concentrate overflow launder 5 through overflow weir, finally by essence
Mine outflow port 6 enters next process, and the particle of non-mineralising enters lower one of operation work through flotation trench bottom tailing outlet port 7
Sequence so far completes floatation process.
Claims (5)
1. a kind of cavitation jet flotation bubble generator, it is characterised in that: including feeding pipe (8), pressure-air air inlet pipe (11),
Trunnion (9), diffuser (10), venturi mixer (13) and air intake duct (14), feeding pipe (8) top are provided with flange, pan feeding
The side wall of pipe (8) is provided with pressure-air air inlet pipe (11), and feeding pipe (8) bottom is connected with diffuser (10), diffuser (10)
Central cavity be up-narrow and down-wide grading structure, diffuser (10) screw top is connected with trunnion (9), diffuser (10) bottom
It is provided with connecting tube (12), connecting tube (12) lower part is provided with venturi mixer (13), and venturi mixer (13) is plugged in
In downcomer (2), side wall of the venturi mixer (13) close to diffuser (10) is provided with air intake duct (14).
2. a kind of cavitation jet flotation bubble generator according to claim 1, it is characterised in that: the diameter of trunnion (9)
It is the 1/2~1/3 of feeding pipe (8) diameter, trunnion (9) is greater than feeding pipe at a distance from pressure-air air inlet pipe (11) upper surface
(8) diameter, diffuser (10) lower end surface between venturi mixer (13) at a distance from be diffuser (10) lower end surface diameter 1
~1.5 times, the minimum diameter of venturi mixer (13) is 1.2~2 times of diffuser (10) lower end surface diameter.
3. a kind of cavitation jet flotation bubble generator according to claim 1, it is characterised in that: pressure-air air inlet pipe
(11) in apply gas pressure be 300~400kPa, and gas flow by feeding pipe (8) dose mineral slurry flux 2%~
3%。
4. a kind of cavitation jet flotation unit, it is characterised in that: including cavitation jet flotation bubble generator (1), flotation cell (4)
With concentrate overflow launder (5), cavitation jet flotation bubble generator (1) lower part is provided with downcomer (2), and downcomer (2) bottom connects
It is connected to ore pulp dispensing head (3), in flotation cell (4), flotation cell (4) lower part is provided with for ore pulp dispensing head (3) and downcomer (2) setting
Tailing outlet port (7), flotation cell (4) outside are provided with concentrate overflow launder (5), and concentrate overflow launder (5) is provided with concentrate outflow port
(6).
5. a kind of cavitation jet flotation unit according to claim 4, it is characterised in that: pass through cavitation jet flotation bubble
The inflation ore pulp of generator (1) is evenly distributed on the section of flotation cell (4) by the ore pulp dispensing head (3) for being connected to downcomer (2),
Mineral laden bubble, which carries concentrate and enters concentrate overflow launder (5), enters next process by concentrate outflow port (6), the particle of non-mineralising with
Flow of slurry enters next process by the tailing outlet port (7) of flotation cell (4) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820239128.7U CN208244961U (en) | 2018-02-10 | 2018-02-10 | A kind of cavitation jet flotation bubble generator and flotation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820239128.7U CN208244961U (en) | 2018-02-10 | 2018-02-10 | A kind of cavitation jet flotation bubble generator and flotation unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208244961U true CN208244961U (en) | 2018-12-18 |
Family
ID=64608316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820239128.7U Withdrawn - After Issue CN208244961U (en) | 2018-02-10 | 2018-02-10 | A kind of cavitation jet flotation bubble generator and flotation unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208244961U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339673A (en) * | 2018-02-10 | 2018-07-31 | 太原理工大学 | A kind of cavitation jet flotation bubble generator and flotation unit |
-
2018
- 2018-02-10 CN CN201820239128.7U patent/CN208244961U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339673A (en) * | 2018-02-10 | 2018-07-31 | 太原理工大学 | A kind of cavitation jet flotation bubble generator and flotation unit |
| CN108339673B (en) * | 2018-02-10 | 2023-11-21 | 内蒙古科灵时代矿业技术有限公司 | Cavitation jet flow flotation bubble generator and flotation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210319 Address after: 017211 no.3002, North Xingyuan, xinkhan Road, a town, ejinholo banner, Ordos City, Inner Mongolia Autonomous Region Patentee after: Inner Mongolia Keling times Mining Technology Co.,Ltd. Address before: 030024 No. 79 West Main Street, Taiyuan, Shanxi, Yingze Patentee before: Taiyuan University of Technology |
|
| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181218 Effective date of abandoning: 20231121 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181218 Effective date of abandoning: 20231121 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |