CN107303540A - A kind of column-type floatation device and method based on oil vacuole - Google Patents
A kind of column-type floatation device and method based on oil vacuole Download PDFInfo
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- CN107303540A CN107303540A CN201710498485.5A CN201710498485A CN107303540A CN 107303540 A CN107303540 A CN 107303540A CN 201710498485 A CN201710498485 A CN 201710498485A CN 107303540 A CN107303540 A CN 107303540A
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- air inlet
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- inlet pipe
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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
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Abstract
The invention discloses a kind of column-type floatation device and method based on oil vacuole, equipment mainly includes grease chamber, sintered plate, flange, main road air inlet pipe, branch road air inlet pipe, circulating pump, bubble generator and overflow launder, it is characterized in that, grease chamber is arranged in the cylinder bottom of the column-type floatation equipment, is fixed on the sintered plate in the middle of flange and grease chamber and the ore pulp of flotation section are kept apart；Air inlet is connected with main road air inlet pipe by pipeline, and main road air inlet pipe is arranged in a circular formation around flotation column cylinder, and is connected with 6 branch road air inlet pipe；6 branch road air inlet pipe are uniformly distributed in grease chamber bottom periphery, and the gas outlet of each branch road air inlet pipe is visited the suitable length of one section of inlet space, ensured gas being uniformly distributed in grease chamber with this；The eddy flow that circulating pump is formed not only enhances the sorting of middle coal, and ensure that suspension of the mineral grain in ore pulp, to realize that the mineralising of coal grain and oil vacuole creates advantage.
Description
Technical field
The present invention relates to a kind of column-type floatation device and method, more particularly to it is a kind of for low-order coal coal slime oil vacuole flotation
Column-type floatation device and method.
Background technology
According to 2016《BP world energy sources statistical yearbooks》Report, China is still the energy-consuming of maximum in the world within 2015
State, accounts for the 23% of global Energy Consumption amount, accounts for energy-consuming and has a net increase of long 34%.The rich coal resources of China, account for China's energy
The 94% of deposit, oil and natural gas only accounts for 6%.Coal as China's energy important support and the important raw material of industry, for warp
Ji social development and energy security supply provide important leverage.The main fuel that coal is consumed as China's primary energy, is accounted for
The 64% of primary energy consumption.Although the energy resource structure of China is always in sustained improvement, root it was predicted that to coal in 2035
Consumption accounting can still reach 47% or so.Low-order coal is low including lignite, jet coal, dross coal and weakly caking coal etc.
The coal resources of degree of metamorphism.In China, low order coal resource very abundant has become coal in China production of energy and supply
Important component.As with the exhaustion and the deterioration of Resource geology condition of high-quality coal resource, low-order coal is rotten in addition
Degree is low frangible, the further raising of Coal Mechanical recovery percent, causes the slime content proportion in raw coal averagely to exist
Between 20% to 30%, high ash difficulty selects Bed for Fine Coal ratio that the trend sharply increased is presented.Because low order rank of coal metamorphism is low oxygen-containing
Amount is high, and Surface gap degree is big, causes that its floatability is poor, and clean coal recovery is low, causes the waste of coal resources.Flotation technology is so far
The 0.5 maximally effective sorting technology of below mm fine slimes is handled untill the present.For the Oxidized copper ores result of various refractory minerals
Show, compared with conventional flotation, the active oil vacuole induction time used with mineral grain adhesion is shorter, shows stronger catch
Receipts ability and selectivity, are proved to be significantly more efficient technological means.
The content of the invention
Goal of the invention：In order to solve low-order coal coal slime difficulty select the low technical barrier of the rate of recovery there is provided one kind it is simple in construction, point
Select the coal slime flotation equipment that effect is good, the rate of recovery is high.
Technical scheme：The technical scheme is that：A kind of column-type floatation equipment based on oil vacuole, including inlet valve, row
Fuel tap, grease chamber, sintered plate, flange, main road air inlet pipe, branch road air inlet pipe, air inlet, circulating pump, bubble generator, mine tailing mouthful,
Overflow launder, concentrate discharge gate, feeding mouth, gas flowmeter, air compressor machine, air accumulator and steam-water separator, it is characterised in that described
Column-type floatation equipment is divided into flotation section, scans section and grease chamber, and grease chamber is located at the bottom for scanning area, and the bottom of cylinder is fixed on method
Sintered plate in the middle of blue keeps apart grease chamber with the ore pulp in flotation column；Air accumulator passes through gas flowmeter and air inlet phase
Even, the air pressure and throughput of grease chamber are fed to adjust by using cooperatively for the valve of air accumulator and gas flowmeter；Enter
Gas port is connected with main road air inlet pipe by pipeline, and main road air inlet pipe is arranged in a circular formation around flotation column cylinder, and with 6 branch roads
Air inlet pipe is connected；6 branch road air inlet pipe are uniformly distributed in grease chamber bottom periphery, the gas outlet of each branch road air inlet pipe visit into
The suitable length of one section of grease chamber, ensures gas in the form of bubble in grease chamber with this（5）It is interior uniform scattered；The position of inlet valve
Put higher than the sintered plate certain distance at the top of grease chamber in level height, the oil pipe Lu Tong that draining valve is connected with grease chamber bottom
One level height；Circulating pump is scanning the sorting of coal during the eddy flow that area formed not only is enhanced, and ensure that mineral grain
Suspension in ore pulp, to realize that the mineralising of coal grain and oil vacuole creates advantage.
Preferably, described a kind of column-type floatation equipment based on oil vacuole, it is characterised in that mine tailing mouthful, which is located at, scans area
Bottom, the pipeline that pump entry is connected height residing in flotation column cylinder is higher than the level height one where mine tailing mouthful
Set a distance；It can supplement floating while a kind of bubble generator suction foaming agent of described column-type floatation equipment based on oil vacuole
Select the throughput in post.
A kind of column-type floatation method based on oil vacuole of the present invention, comprises the following steps：
The oiliness collecting agent and surfactant of normal temperature liquid are mixed by certain proportioning, after being uniformly mixed, beaten
Drive fuel tap into and grease chamber is fed with certain flow velocity by peristaltic pump；The pressurization obtained after air compressor machine and steam-water separator processing is done
Dry air is stored in air accumulator；Pass through the valve of air accumulator and using cooperatively for gas flowmeter so that the air of high-pressure drying
With certain pressure and flow by branch road air inlet pipe to be evenly dispersed in the form of bubble in grease chamber, due to oily room pressure
Effect so that the bubble being dispersed in oil phase after the very small pores of distribution by foring small oil vacuole inside sintered plate（Table
Bread covers the micro-bubble of one layer of oil film）；Using the negative pressure produced when circulating ore pulp injection, foaming agent is via bubble generator
Import is tangentially inhaled into eddy flow section；Small oil vacuole is entered one under the high-speed jet of ore pulp and the collective effect of foaming agent
Step is crushed, and is dispersed into the oil vacuole of micron-scale；The surface-active of variety classes and mass percent is added into oiliness collecting agent
The additives such as agent are to change the surface tension of collecting agent, so as to regulate and control the thickness of the oil film coated on bubble；Low-order coal is existed
Soaked in agitator, be well mixed to form certain density ore pulp with water, flotation column is fed from feeding mouth by feed pump；Small oil
Bubble is collided and mineralising in flotation section with the preferable low order coal particle of floatability with certain relative velocity, floats to overflow launder
In by concentrate discharge gate discharge turn into head coal product；Flotation section fail mineralising floating chats through circulating pump tangentially at a high speed
Squeeze into and scan area, the weight product that ore pulp is made in swirling motion, chats under the action of the centrifugal force is transported along the downward spiral of flotation column wall
It is dynamic, finally by mine tailing mouthful discharge turn into floc sedimentation that the relatively good coal grain of floatability in tail coal product, chats formed with oil vacuole to
Eddy flow central motion, and the secondary flotation of coal during flotation section is realized is shifted to rapidly；On the other hand, the eddy flow that circulating pump is caused,
A kind of stirring action is served to the mineral grain in flotation column, it is ensured that suspension of the mineral grain in ore pulp, it is low to realize
The mineralising of rank coal particle and oil vacuole creates advantage.
Beneficial effect：From unlike conventional floatation equipment, in using oil vacuole as the flotation operation of floatation carrier, catching
Receiving agent is directly appended in liquid phase, but is wrapped in the bubble surface being dispersed in grease chamber in oil film form one layer thin,
Oil vacuole enters after ore pulp, while oil film is with low-order coal granular absorption, and bubble reduces bubble ore deposit together with also sticking with coal grain
Work of adhesion during change, substantially reduces induction time, improves flotation efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the A-A cross-section cutaway views in Fig. 1.
In figure：1st, draining valve, 2, inlet valve, 3, mine tailing mouthful, 4, main road air inlet pipe, 5, grease chamber, 6, branch road air inlet pipe, 7, method
Orchid, 8, sintered plate, 9, air inlet, 10, circulating pump, 11, air compressor machine, 12, steam-water separator, 13, air accumulator, 14, gas stream
Gauge, 15, feeding mouth, 16, bubble generator, 17, overflow launder, 18, concentrate discharge gate.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings：
A kind of column-type floatation equipment based on oil vacuole, including inlet valve 2, draining valve 1, grease chamber 5, sintered plate 8, flange 7, main road enter
Tracheae 4, branch road air inlet pipe 6, air inlet 9, circulating pump 10, bubble generator 16, mine tailing mouth 3, overflow launder 17, concentrate discharge gate
18th, feeding mouth 15, gas flowmeter 14, air compressor machine 11, air accumulator 13 and steam-water separator 12, it is characterised in that grease chamber 5 is arranged
It is divided into flotation section in the column-type floatation equipment, scans section and grease chamber, grease chamber is located at the bottom for scanning area, the bottom of cylinder, Gu
The sintered plate 8 in the middle of flange 7 is scheduled on to keep apart grease chamber 5 with the ore pulp in flotation column；Air accumulator 13 passes through gas flowmeter
14 are connected with air inlet 9, and the sky of grease chamber 5 is fed to adjust by using cooperatively for the valve of air accumulator 13 and gas flowmeter 14
Atmospheric pressure and throughput；Air inlet 9 is connected with main road air inlet pipe 4 by pipeline, and main road air inlet pipe 4 is in around flotation column cylinder
Circular arrangement, and be connected with 6 branch road air inlet pipe 6；6 branch road air inlet pipe 6 are uniformly distributed in the bottom periphery of grease chamber 5, each
The suitable length of 5 one sections of inlet space is visited in the gas outlet of branch road air inlet pipe 6, ensures gas in the form of bubble in grease chamber with this
Uniformly disperse in 5；The position of inlet valve 2 is in level height higher than the certain distance of sintered plate 8 at the top of grease chamber 5, draining valve 1
The oil pipe road being connected with the bottom of grease chamber 5 is in same level height；Circulating pump 10 is not only strengthened scanning the eddy flow that area formed
The sorting of middle coal, and suspension of the mineral grain in ore pulp is ensure that, to realize that the mineralising of coal grain and oil vacuole has been created
Sharp condition.
In use, the oiliness collecting agent and surfactant of normal temperature liquid are mixed by certain proportioning, it is mixed by stirring
After closing uniformly, open inlet valve and grease chamber 5 is fed with certain flow velocity by peristaltic pump；At air compressor machine 11 and steam-water separator 12
The high-pressure drying air obtained after reason is stored in air accumulator 13；Made by the cooperation of the valve and gas flowmeter 14 of air accumulator 13
With so that the air of high-pressure drying is uniformly dispersed with certain pressure and flow by branch road air inlet pipe 6 in the form of bubble
In grease chamber 5, due to the effect of pressure in grease chamber 5 so that the bubble being dispersed in oil phase is by being distributed in inside sintered plate 8
Small oil vacuole is formed after very small pores（The micro-bubble of one layer of oil film of Surface coating）；Produced during due to circulation ore pulp injection
Negative pressure, foaming agent is tangentially inhaled into eddy flow section via the import of bubble generator 16；High speed of the small oil vacuole in ore pulp
Further crushed under the collective effect of jet and foaming agent, be dispersed into the oil vacuole of micron-scale；Added into oiliness collecting agent
The additive such as variety classes and the surfactant of mass percent is to change the surface tension of collecting agent, so as to regulate and control on bubble
The thickness of the oil film coated；Low-order coal is soaked in agitator, is well mixed to form certain density ore pulp with water, by
Material pump feeds flotation column from feeding mouth 15；Small oil vacuole is in flotation section with the preferable low order coal particle of floatability with certain relative
Speed collides and mineralising, floats in overflow launder 17 and to be discharged by concentrate discharge gate 18 as head coal product；Flotation section fails
The chats that mineralising floats tangentially is squeezed at a high speed through circulating pump 10 scans area, and ore pulp makees eddy flow fortune under the action of the centrifugal force
Dynamic, the weight product in chats finally turns into tail coal product, chats along the downward screw of flotation column wall by the discharge of mine tailing mouthful 3
The floc sedimentation that the middle relatively good coal grain of floatability is formed with oil vacuole is shifted to rapidly in flotation section realization to eddy flow central motion
The secondary flotation of coal；On the other hand, the eddy flow that circulating pump 10 is caused, a kind of stirring is served to the mineral grain in flotation column and is made
With, it is ensured that suspension of the mineral grain in ore pulp, to realize that the mineralising of low order coal particle and oil vacuole creates advantage.
Claims (3)
1. a kind of column-type floatation equipment based on oil vacuole, including inlet valve（2）, draining valve（1）, grease chamber（5）, sintered plate（8）, method
It is blue（7）, main road air inlet pipe（4）, branch road air inlet pipe（6）, air inlet（9）, circulating pump（10）, bubble generator（16）, mine tailing mouthful
（3）, overflow launder（17）, concentrate discharge gate（18）, feeding mouth（15）, gas flowmeter（14）, air compressor machine（11）, air accumulator（13）
And steam-water separator（12）, it is characterised in that grease chamber（5）Be arranged in the column-type floatation equipment be divided into flotation section, scan section and
Grease chamber, grease chamber is located at the bottom for scanning area, and the bottom of cylinder is fixed on flange（7）Middle sintered plate（8）Grease chamber（5）With
Ore pulp in flotation column is kept apart；Air accumulator（13）Pass through gas flowmeter（14）With air inlet（9）It is connected, passes through air accumulator
（13）Valve and gas flowmeter（14）Use cooperatively and feed grease chamber to adjust（5）Air pressure and throughput；Air inlet
Mouthful（9）With main road air inlet pipe（4）It is connected by pipeline, main road air inlet pipe（4）It is arranged in a circular formation around flotation column cylinder, and with
6 branch road air inlet pipe（6）It is connected；6 branch road air inlet pipe（6）It is uniformly distributed in grease chamber（5）Bottom periphery, each branch road air inlet
Pipe（6）Gas outlet visit inlet space（5）One section of suitable length, ensures gas in the form of bubble in grease chamber with this（5）
It is interior uniform scattered；Inlet valve（2）Position in level height be higher than grease chamber（5）The sintered plate at top（8）Certain distance, row
Fuel tap（1）With grease chamber（5）The connected oil pipe road in bottom is in same level height；Circulating pump（10）Scanning the rotation that area is formed
Stream not only enhances the sorting of middle coal, and ensure that suspension of the mineral grain in ore pulp, to realize the ore deposit of coal grain and oil vacuole
Change creates advantage.
2. a kind of column-type floatation equipment based on oil vacuole according to claim 1, it is characterised in that mine tailing mouthful, which is located at, to be scanned
The bottom in area, the pipeline that pump entry is connected height residing in flotation column cylinder is high higher than the level where mine tailing mouthful
Spend certain distance；A kind of bubble generator of described column-type floatation equipment based on oil vacuole（16）Can while suction foaming agent
To supplement the throughput in flotation column.
3. a kind of column-type floatation method based on oil vacuole of equipment according to claim 1, it is characterised in that including following step
Suddenly：
The oiliness collecting agent and surfactant of normal temperature liquid are mixed by certain proportioning, after being uniformly mixed, beaten
Drive fuel tap into and grease chamber is fed with certain flow velocity by peristaltic pump（5）；Through air compressor machine（11）And steam-water separator（12）After processing
Obtained high-pressure drying air is stored in air accumulator（13）；Pass through air accumulator（13）Valve and gas flowmeter（14）Cooperation
Use so that the air of high-pressure drying passes through branch road air inlet pipe with certain pressure and flow（6）In the form of bubble equably
It is dispersed in grease chamber（5）It is interior, due to grease chamber（5）The effect of interior pressure so that the bubble being dispersed in oil phase is by being distributed in sintering
Plate（8）Small oil vacuole is formed after internal very small pores（The micro-bubble of one layer of oil film of Surface coating）；Due to circulation ore pulp
The negative pressure produced during injection, foaming agent is via bubble generator（16）Import be tangentially inhaled into eddy flow section；Small oil
Bubble is further crushed under the high-speed jet of ore pulp and the collective effect of foaming agent, is dispersed into the oil vacuole of micron-scale；To oil
Property collecting agent in addition variety classes and the additive such as surfactant of mass percent to change the surface tension of collecting agent,
So as to regulate and control the thickness of the oil film coated on bubble；Low-order coal is soaked in agitator, is well mixed to form certain with water
The ore pulp of concentration, by feed pump from feeding mouth（15）Feed flotation column；Small oil vacuole is in flotation section and the preferable low order of floatability
Coal particle is collided and mineralising with certain relative velocity, floats to overflow launder（17）In by concentrate discharge gate（18）Discharge into
For head coal product；Flotation section fails the chats of mineralising floating through circulating pump（10）Tangentially squeeze at a high speed and scan area, ore pulp
Make the weight product in swirling motion, chats under the action of the centrifugal force along the downward screw of flotation column wall, finally by mine tailing mouthful
（3）Discharge turns into the relatively good coal grain of floatability in tail coal product, chats with the floc sedimentation of oil vacuole formation to eddy flow central motion,
And the secondary flotation of coal during flotation section is realized is shifted to rapidly；On the other hand, circulating pump（10）The eddy flow caused, in flotation column
Mineral grain serve a kind of stirring action, it is ensured that suspension of the mineral grain in ore pulp, for realize low order coal particle with
The mineralising of oil vacuole creates advantage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498485.5A CN107303540A (en) | 2017-06-27 | 2017-06-27 | A kind of column-type floatation device and method based on oil vacuole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498485.5A CN107303540A (en) | 2017-06-27 | 2017-06-27 | A kind of column-type floatation device and method based on oil vacuole |
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| CN107303540A true CN107303540A (en) | 2017-10-31 |
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| CN201710498485.5A Pending CN107303540A (en) | 2017-06-27 | 2017-06-27 | A kind of column-type floatation device and method based on oil vacuole |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108607692A (en) * | 2018-05-25 | 2018-10-02 | 河南东大科技股份有限公司 | A kind of low-grade bauxite ore dressing flotation bubble generator |
| CN109900622A (en) * | 2019-03-25 | 2019-06-18 | 山西大学 | A kind of powdered mineral floatability analyzer |
| KR102085914B1 (en) * | 2019-09-02 | 2020-03-06 | 주식회사 에이이 | Column flotation apparatus for extracting concentrate from mineral |
| CN111013826A (en) * | 2019-12-31 | 2020-04-17 | 湖北省地质实验测试中心(国土资源部武汉矿产资源监督检测中心) | Micro-fine particle mineral flotation recovery method |
| CN112516796A (en) * | 2020-11-11 | 2021-03-19 | 中国科学院青海盐湖研究所 | Extraction separation device and extraction separation method for lithium isotopes |
| CN112774872A (en) * | 2021-03-09 | 2021-05-11 | 中国矿业大学 | Bubble flotation column system for separating micro-plastic in sediment and using method thereof |
| CN113457853A (en) * | 2021-06-23 | 2021-10-01 | 湖南柿竹园有色金属有限责任公司 | Unpowered gas stirring type flotation device and flotation method |
| CN115105866A (en) * | 2021-03-23 | 2022-09-27 | 丰田自动车株式会社 | Storage tank |
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| CN115105866A (en) * | 2021-03-23 | 2022-09-27 | 丰田自动车株式会社 | Storage tank |
| CN115105866B (en) * | 2021-03-23 | 2024-05-07 | 丰田自动车株式会社 | Storage tank |
| CN113457853A (en) * | 2021-06-23 | 2021-10-01 | 湖南柿竹园有色金属有限责任公司 | Unpowered gas stirring type flotation device and flotation method |
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Application publication date: 20171031 |
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