CN107362911A - Jet micro-bubble flotation machine - Google Patents
Jet micro-bubble flotation machine Download PDFInfo
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- CN107362911A CN107362911A CN201710786682.7A CN201710786682A CN107362911A CN 107362911 A CN107362911 A CN 107362911A CN 201710786682 A CN201710786682 A CN 201710786682A CN 107362911 A CN107362911 A CN 107362911A
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- flotation
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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
Abstract
The present invention relates to a kind of jet micro-bubble flotation machine, including frame, flotation cylinder, pulp distributer mounting bracket, pulp distributer, microvesicle mineralization unit；The upper end installation concentrate overflow launder of the flotation cylinder, at least one concentrate collection port in bottom of concentrate overflow launder；Inner cylinder is installed in the cone of flotation cylinder bottom, tailings discharging passage is provided between the inner cylinder and flotation cylinder；Self-regulation air-flowing type Qu Pao mechanisms are installed on the lower section pulp distributer mounting bracket of pulp distributer, self-regulation air-flowing type Qu Pao mechanisms include air duct, the lower end of air duct is air inlet, the upper end of air duct is sealed and installed with lid, air outlet is laid with the upper lid, air outlet connects the suction nozzle on micro-bubble mineralizer by pipeline respectively；The axial direction of air duct interior edge air duct is provided with central shaft, is provided with axial flow fan leaf on central shaft in air duct；In the end of central shaft, bubble blade is driven in installation, and the bottom of air duct is also equipped with adjusting the flashboard of intake.The present invention has the advantages that to operate steadily, flotation efficiency height, flotation precision are high.
Description
Technical field
The invention belongs to flotation technology field, more particularly to a kind of jet micro-bubble flotation machine.
Background technology
With rapid development of economy, the mankind are more and more to the demand of mineral resources, and mineral resources are used as one kind not
Its reserves of reproducible resource are being reduced year by year with swift and violent speed, and faced with this situation, utilization lean ore, mine tailing seem
It is particularly important.In recent years, substantial amounts of research work has been carried out in this respect both at home and abroad, part scientific achievement has been applied to
In industrial production, good economy, environmental and social benefits are achieved.
Industrially developed country is horizontal and economically developed as a national science and technology is weighed using the degree of comprehensive utilization of tailing
The mark of degree, it is not only to pursue maximum economic effect using purpose, but also from comprehensive resource utilization rate, protecting ecology
The synthesis such as environment takes in.The comprehensive utilization of tailing research in China is started late, but is quickly grown in recent years, the metal in China
Mineral resources lean ore is more, Associated Constituents are more, middle-size and small-size mineral deposit is more, and many mines are exploited into middle and advanced stage at present, economic benefit day
Become reduce, situation forced some mines have to walk multi mineral product joint development and comprehensive utilization way.
Known flotation device is a kind of conventional floatation equipment of mineral manufacture field, is widely used in non-ferrous metal, black
The separation operation of metal, rare precious metal and coal, chemical industry mineral etc..The species of flotation device is various, and difference, which is mainly manifested in, fills
Gas mode and stirring structure etc., it is at present different by flotation device with agitating mode by inflation using most sorting techniques
Be divided into two major classes, i.e., agitation impeller flotator and pneumatic flotation cell (thank to Guangyuan,《Mineral dressing》, China Mining University publishes
Society, in August, 2001).Agitation impeller flotator is often referred to simply as flotation device, and most typical pneumatic flotation cell is exactly flotation
Post.
Agitation impeller flotator has stronger turbulence level due to its strong stirring action, makes ore pulp scattered equal
It is even, and acted on certain midge, stirring action will can suck simultaneously or the segmentation of the air of press-in is broken into tiny bubble,
So agitation impeller flotator typically inflation is good, and bubble is uniformly dispersed.The main region that bubble contacts with ore particle point
High-shear region of the cloth around impeller, mineralization is strong, thus flotation device to the proportions such as coarse flotation and metalliferous mineral compared with
Big mineral floating more effectively (Sun Shiyuan,《Newest Chinese preparation equipment handbook》, Beijing Machinery Industry publishing house, 2006
October).But turbulence level stronger in cell body is unfavorable for mineral laden bubble floating, and because flotation device body height is smaller, tail
Mine mouth position is higher, the good mineral of substantial amounts of floatability and less mineral laden bubble is discharged from mine tailing mouth, ore pulp short circuit occurs
With target minreal channelling phenomenon, decline the single groove efficiency of separation, so traditional flotation device is typically by the way of multiple-grooved is used in conjunction, instead
Multiple flotation, can be such that target minreal is sufficiently separated with ore pulp.Although can so obtain expected separating effect, repeat
Sorting adds the quantity of equipment, adds input of founding the factory, and power consumption increase, adds the operation cost for selecting factory.
In floatation equipment, the mineralization degree of bubble, bubble and the isolating environment of ore pulp be all realize separate it is crucial because
Element (king provides,《Floating separation technology》, metallurgical industry publishing house, in October, 2006), the turbulence level of flotation device is larger, comparatively
The isolating environment of flotation column is preferable, and due to no agitating device, flotation column turbulence level is weaker, there is provided the separation ring of quasi-static
Border, the separation for being advantageous to mineral laden bubble and ore pulp is layered, and forms stable froth bed.Flotation column belongs to column type floatation machine, is
A kind of shallow/deep groove type pneumatic flotation cell, usual ore pulp are fed from flotation column top, reverse with the bubble of rising in dropping process
Contact, mineralising is realized in adverse current is collided.But mineralization process and inner loop are strengthened in stirring of the flotation column due to lacking flotation device
Strengthen recovery link, mineralization intensity is relatively weak, so flotation column increases ore particle and bubble typically in the form of pillar height is increased
Contact probability, increase the length of mineralised zones, the height of column of traditional flotation column is typically at 10 meters or so, but the rate of recovery is still
Less than flotation device, and the recovery to the larger metalliferous mineral of coarse grain and proportion is particularly disadvantageous.For this problem, many scholars
Once some novel flotation columns were designed, enhance remineralization efficacy to a certain extent, but all floated at present without solving root problem
Post rate of recovery in the flotation of metalliferous mineral is selected still to be not so good as flotation device.
The discharge of concentrate is to realize last link of FLOTATION SEPARATION, and on separate mode, flotation device uses edge more
The form of scraper plate scrapes bubble, and flotation column uses automatic Overruning more, these separate modes all exist foam largely accumulate, wait it is to be doctored
The residence time is long when going out, froth bed horizontal transfer stroke is big, the shortcomings of dead angle be present, not to froth concentrate active collection, all
It may be considered the concentrate discharge mode of extensive style.In addition, flotation device is due to stronger action of turbulent flow, in froth concentrate entrainment compared with
To be serious, spray equipment that traditional flotation device is not cleaned to froth concentrate, so concentrate grade is poor.
A kind of micro-bubble flotation machine disclosed in prior art, number of patent application 002072599, its primary structure include pan feeding
Mouth, pulp distributer, air compartment, flotation bucket, concentrate hopper, chats bucket, mineralization unit etc. form, and it, which is mainly characterized by, passes through ore pulp
Valve on the micro-bubble mineralizer of distributor connection, is connected by airway tube with air compartment, so as to realize ore pulp mineralising；This patent is public
The pressure of reflection shower nozzle of the micro-bubble flotation machine opened in ore pulp washing process due to mineralization unit bottom is larger so that chats bucket
Larger magic flower inside still occurs so that positioned at the enlarged in thickness of the turbulent layer of flotation bottom of the barrel, due to the height of flotation bucket
It is constant, the relative reduction of thickness of the flotation layer (stratosphere) positioned at upper strata is in turn resulted in, in turn results in row of the microvesicle in flotation layer
Journey reduces, and causes flotation precision and flotation efficiency to reduce；Magic flower can also damage to the microvesicle being molded simultaneously, and reduction has
The quantity of microvesicle is imitated, reduces the efficiency of sorting；In addition, circulation washing is directly entered in the ore pulp that the bottom of chats bucket comes out,
The ore pulp that so will result in part permineralization is directly entered secondary washing process, and then reduces flotation efficiency；This
The lower slurry-conveying tube that micro-bubble mineralizer is connected in patent is latus rectum structure, in the art when ore pulp conveys in path tube to ore deposit
The mineralising of slurry does not influence directly；This patent collects concentrate by the way of nature overflow, during for larger flotation section,
Cause foam to accumulate, and then reduce concentrate collection efficiency and flotation efficiency.
The content of the invention
The present invention provides that one kind operates steadily, flotation efficiency is high, floating for technical problem present in solution known technology
Select a kind of jet micro-bubble flotation machine that precision is high.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：
A kind of jet micro-bubble flotation machine, including frame, the flotation cylinder for being fixedly mounted on frame upper end, are fixedly mounted on flotation
The pulp distributer mounting bracket of cylinder upper end, the pulp distributer being fixedly mounted on pulp distributer mounting bracket, ore pulp distribution
Device connects ore pulp delivery duct；The excircle of the pulp distributer uniformly connects several microvesicle mineralising lists by ore pulp distribution pipe
Member；The top of the flotation cylinder is cylindrical structure, and the bottom of flotation cylinder is conical structure；The bottom of the flotation cylinder
The bottom of cone connects liquid level adjuster by communicating pipe, and the liquid level adjuster is provided with tailings discharging pipe, the mine tailing
Delivery pipe connects mine tailing storage cylinder；The upper end of the flotation cylinder is along the circumferential direction provided with concentrate overflow launder, concentrate overflow launder
At least one concentrate collection port in bottom, concentrate collection port pass through concentrate delivery pipe connect concentrate storage cylinder；In flotation cylinder lower end
Inner cylinder is installed in the cone in portion, tailings discharging passage is provided between the inner cylinder and flotation cylinder；The upper end of the inner cylinder
For cylindrical structure, the bottom of inner cylinder is conical structure, and the upper end of the inner cylinder is provided with turbulence plate, the turbulence plate
It is provided with flowing hole；The bottom connection ore pulp circulation pipe of the cone of the inner cylinder, the other end connection ore deposit of ore pulp circulation pipe
Starch distributor；The microvesicle mineralization unit includes the micro-bubble mineralizer being connected with above-mentioned ore pulp distribution pipe, the micro-bubble mineralizer
On suction nozzle is installed, the bottom connection mineralising jet pipe of micro-bubble mineralizer, the bottom of the mineralising jet pipe is through disorderly
Flowing plate extends to inner cylinder；The end connection fluid jet nozzle of the mineralising jet pipe；The lower section ore pulp distribution of the pulp distributer
Self-regulation air-flowing type Qu Pao mechanisms are installed, the self-regulation air-flowing type Qu Pao mechanisms include air duct, the wind on device mounting bracket
The center line of cylinder overlaps with the center line of flotation cylinder, and the lower end of the air duct is air inlet, and the upper end of air duct is sealed and installed with
Cover, be laid with air outlet on the upper lid, the quantity of the air outlet is at least identical with the quantity of microvesicle mineralization unit；It is described
Air outlet connects the suction nozzle on micro-bubble mineralizer by pipeline respectively；Gate valve, the air duct interior edge air duct are installed on pipeline
Axial direction central shaft is installed, the center line of central shaft overlaps with the center line of air duct；Installed in air duct on central shaft
There is axial flow fan leaf；The bottom of the central shaft is extended in the froth bed of flotation cylinder upper end formation；In the end of central shaft
Installation drives the foam for carrying concentrate particle to steep blade to the drive that concentrate overflow launder direction moves horizontally, described to drive bubble blade at least
Provided with five；The bottom for driving bubble blade is located at flotation cylinder upper surface concordantly or more than upper surface；The lower end of the air duct
Portion is also equipped with adjusting the flashboard of intake.
The present invention can also use following technical measures：
The bottom of the central shaft is sealed and installed with pressure bubble guide shell, and bubble oar is driven in the outer wall installation of the pressure bubble guide shell
Leaf；The lower end of pressure bubble guide shell is provided with deflection cone, and the center line of deflection cone overlaps with the center line of flotation cylinder.
The cone angle of the deflection cone is less than or equal to 45 °.It is to drive foam to be displaced outwardly at present；
Described upper lid is spherical structure.
The mineralising jet pipe is spliced including two jet pipe monomers, and the jet pipe monomer includes body, described
The both ends of body are provided with adpting flange, and one end is provided with positioning boss in body；In positioning boss side pipe body insert dextrorotation or
Derotation conveyor screw, dextrorotation or derotation conveyor screw contact with positioning boss；The length of dextrorotation or the derotation conveyor screw is more than body
Diameter be less than tube length 1/2；The height of dextrorotation or the derotation conveyor screw is more than the 1/3 of body radius and is less than or equal to manage
The radius of body；A jet pipe monomer carries spiral without spiral body end and another jet pipe monomer in two jet pipe monomers
Body end connects to form mineralising jet pipe by flange；One end of mineralising jet pipe carries conveyor screw, the other end of mineralising jet pipe
Without conveyor screw, the mineralising jet pipe end connection micro-bubble mineralizer with conveyor screw, without the mineralising jet pipe end of conveyor screw
Connect fluid jet nozzle.
The fluid jet nozzle includes connecting tube and hollow type jet body, and the connecting tube and hollow type jet body, which are fixed, to be connected
Connect；The connection tube end connects the bottom of mineralising jet pipe by flange；Number is laid with the hollow type jet body
Individual jet orifice, all jet hole area sums and the surface area ratio of hollow type jet body are 1 on hollow type jet body:2~4；
All jet hole area sums are more than the sectional area of connecting tube on hollow type jet body.
The jet body is a hollow spheroid, hemisphere or cylindrical tube.
Reflection cone is provided with by supporting plate in the inner cylinder, the vertex of a cone of the reflection cone is located at fluid jet nozzle side, reflected
The center line of cone overlaps with the center line of flotation cylinder；The reflection cone edge of bottom surface and leaving for inner cylinder lower end cone inwall
Gap, form ore pulp circulation canal；Gap width is 100mm~150mm；The distance of curved surface fluid jet nozzle lower end of the reflection cone
Vertical range is 300mm~500mm.
The upper plane of inner cylinder is located at the 1/3~1/2 of flotation cylinder.
The cone angle of the cone of the inner cylinder lower end is more than the cone angle of flotation cylinder lower end cone；Coordinate in two cones
The gap in gap to the mine tailing exit of place mine tailing porch gradually increases.
The present invention has the advantages and positive effects of：Because the present invention uses above-mentioned technical proposal so that present invention tool
Have the advantage that：
1st, because the present invention is using the negative pressure drive Qu Pao mechanisms of micro-bubble mineralizer suction nozzle, solve existing larger float
The problem of selecting section foam accumulation, improves concentrate collection efficiency and flotation efficiency, is automatically adjusted in addition, being had according to production bubble efficiency
The characteristics of driving bubble speed, driving force ratio is more steady during bubble is driven；Justing think can drive bubble blade to drive bubble using motor,
But the thickness of froth bed is not a fixed state in floatation process, and froth bed is still used when froth bed thickness is smaller
The larger driving force of thickness carries out drive bubble, so will result in the rupture of effective foam, reduces flotation efficiency, mechanism and
Outer gas-distributing motor driving is compared to the loss for reducing effective foam, and this Qu Pao mechanisms do not consume other energy, has energy-conservation, subtracts
The effect of row, while the manufacturing cost of equipment is also reduced, and the maintenance cost of equipment.
2nd, it is spliced by two jet pipe monomers in the mineralising jet pipe of the present invention, while is pacified in two jet pipe monomers
A dextrorotation conveyor screw and derotation conveyor screw are filled, utilizes the effect of dextrorotation conveyor screw and derotation conveyor screw so that ore pulp is in ore deposit
Change and reciprocating type rotary motion is formed in jet pipe, the turbulent phenomenon possessed by itself in mineralising jet pipe, and then strengthen ore pulp
Mineralization degree, for the later stage improve flotation efficiency lay the foundation.
3rd, the present invention uses decompression type fluid jet nozzle, fundamentally changes ore pulp in course of conveying due to flow velocity and pressure
The reason for, to ore pulp bring it is huge spring up and roll, and then reduce the thickness of the turbulent layer in flotation cylinder, due to flotation cylinder
Height it is constant, make positioned at turbulent layer upper strata flotation layer (stratosphere) thickness relative increase, and then extend microvesicle in flotation
The stroke of layer so that microvesicle more concentrate particles in uphill process are attached on microvesicle, improve flotation precision and flotation effect
Rate.
4th, present invention installation reflection cone in inner cylinder, avoids the ore pulp of part permineralization from directly entering by circulation pipe
Enter secondary washing process, and then improve flotation efficiency.
In summary, the present invention have operate steadily, flotation efficiency is high, flotation precision is high, while be also equipped with equipment debugging
The characteristics of being simple and convenient to operate.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is that self-regulation air-flowing type drives bubble mechanism structure schematic diagram；
Fig. 3 is mineralising jet pipe internal structure schematic diagram；
Fig. 4 to Fig. 6 is fluid jet nozzle structural representation；
Fig. 7 is reflection cone mounting structure schematic diagram.
In figure：1st, frame；2nd, flotation cylinder；3rd, pulp distributer mounting bracket；4th, pulp distributer；5th, microvesicle mineralization unit；
5-1, micro-bubble mineralizer；5-2, suction nozzle；5-3, mineralising jet pipe；5-30, body；5-31, adpting flange；5-32, convex
Platform；5-33, dextrorotation conveyor screw；5-34, derotation conveyor screw；5-4, fluid jet nozzle；5-40, connecting tube；5-41, hollow type jet
Body；5-42, jet orifice；6th, tailings discharging pipe；6-1, liquid level adjuster；7th, concentrate overflow launder；8th, concentrate collection port；9th, connect
Pipe；10th, inner cylinder；11st, tailings discharging passage；12nd, Qu Pao mechanisms；12-1, air duct；12-10, air inlet；12-2, upper lid；12-
20th, air outlet；12-3, gate valve；12-4, central shaft；12-5, axial flow fan leaf；12-6, drive bubble blade；12-7, flashboard；13rd, pressure bubble
Guide shell；14th, deflection cone；15th, reflection cone；15-1, supporting plate；15-2, ore pulp circulation canal；16th, turbulence plate；17th, circulation pipe.
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing
Describe in detail as follows：
Refer to Fig. 1 and Fig. 2, a kind of jet micro-bubble flotation machine, including frame 1, the flotation for being fixedly mounted on frame upper end
Cylinder 2, is fixedly mounted on the pulp distributer mounting bracket 3 of flotation cylinder upper end, is fixedly mounted on pulp distributer mounting bracket
Pulp distributer 4, pulp distributer connection ore pulp delivery duct；The excircle of the pulp distributer is equal by ore pulp distribution pipe
Cloth connects several microvesicle mineralization units 5；The top of the flotation cylinder is cylindrical structure, and the bottom of flotation cylinder 2 is cone
Structure；The bottom of the bottom cone of the flotation cylinder is by connecting liquid level adjuster 6-1, the liquid level adjustment communicating pipe 9
Device is provided with tailings discharging pipe 6, and the tailings discharging pipe connects mine tailing storage cylinder；The upper end of the flotation cylinder is along the circumferential direction
Concentrate overflow launder 7, at least one concentrate collection port 8 in bottom of concentrate overflow launder are installed, concentrate collection port is conveyed by concentrate
Pipe connects concentrate storage cylinder；Inner cylinder 10 is installed in the cone of the bottom of flotation cylinder 2, set between the inner cylinder and flotation cylinder
There is tailings discharging passage 11；The upper end of the inner cylinder is cylindrical structure, and the bottom of inner cylinder is conical structure, described interior
The upper end of cylinder 10 is provided with turbulence plate 16, and the turbulence plate is provided with flowing hole；The effect of turbulence plate is reduced in inner cylinder by penetrating
The ore pulp impact that flow tube sprays down, reduces destruction of the magic flower to microvesicle；The bottom connection ore deposit of the cone of the inner cylinder 10
Starch circulation pipe 12, the other end connection pulp distributer 4 of ore pulp circulation pipe；The microvesicle mineralization unit 5 includes and above-mentioned ore pulp
The micro-bubble mineralizer 5-1 of distribution pipe connection, is provided with suction nozzle 5-2, the bottom of micro-bubble mineralizer on the micro-bubble mineralizer
Mineralising jet pipe 5-3 is connected, the bottom of the mineralising jet pipe extends to inner cylinder 10 through turbulence plate 11；The mineralising jet
The end connection fluid jet nozzle 5-4 of pipe；Self-regulated solar term are installed on the lower section pulp distributer mounting bracket of the pulp distributer 4
Streaming Qu Pao mechanisms 12, the self-regulation air-flowing type Qu Pao mechanisms 12 include air duct 12-1, the center line of the air duct 12-1 with
The center line of flotation cylinder 2 overlaps, and the lower end of the air duct 12-1 is air inlet 12-10, and the upper end of air duct is sealed and installed with lid
12-2, is laid with air outlet 12-20 on the upper lid, the quantity of the quantity of the air outlet at least with microvesicle mineralization unit 5
It is identical, when the quantity of air outlet is more than the quantity of microvesicle mineralization unit 5, no air outlet can be entered in actual use
Row sealing blocking, so that air duct has certain versatility；The air outlet 12-10 connects microvesicle ore deposit by pipeline respectively
Change the suction nozzle 5-2 on device 5-1；For the ease of controlling intake, gate valve 12-3, the air duct interior edge wind are installed on pipeline
The axial direction of cylinder is provided with central shaft 12-4, and the center line of central shaft overlaps with the center line of air duct；The central shaft in air duct
On axial flow fan leaf 12-5 is installed；The bottom of the central shaft 12-4 is extended in the froth bed of the upper end of flotation cylinder 2 formation；
In the end of central shaft, installation drives the foam for carrying concentrate particle to steep blade 12- to the drive that concentrate overflow launder direction moves horizontally
6, the bubble blade that drives is at least provided with five；When the quantity for driving bubble blade is very few, the driving force demand of bubble blade is driven with regard to big, when
Air duct will be unable to driving and drive the rotation of bubble blade, and then be unable to reach the mesh for driving bubble when caused power is not big enough from bottom to top
's；In order to ensure foam walking in a horizontal state in the case where driving the drive of bubble blade as far as possible, while the driving force for avoiding driving bubble blade damages bubble by pressure
Foam, the bottom for driving bubble blade 12-6 are located at flotation cylinder upper surface concordantly or more than upper surface；In order to realize real-time regulation
Intake ensures the driving force of drive bubble blade, is also equipped with adjusting the flashboard 12-7 of intake in the bottom of the air duct.
In order to reach preferable flotation effect, the upper plane of above-mentioned inner cylinder is located at the 1/3~1/2 of flotation cylinder.
In order to avoid ore pulp blocks in tailings discharging passage, the cone angle of the cone of the inner cylinder lower end is more than flotation cylinder
The cone angle of lower end cone；The gap in the gap of mine tailing porch to mine tailing exit gradually increases at two cone cooperations
Greatly.
In order that foam has the trend that a level is walked to concentrate overflow launder 7, it is close in the bottom of the central shaft
Envelope is provided with pressure bubble guide shell 13, and bubble blade 12-6 is driven in the outer wall installation of the pressure bubble guide shell；The lower end of pressure bubble guide shell is set
There is deflection cone 14, the cone angle of the deflection cone is less than or equal to 45 °；The center line of deflection cone overlaps with the center line of flotation cylinder 2.
In order to which the upper end reduced in air duct evenly distributes, dead angle is avoided, described upper lid is spherical structure.
In order to further deepen mineralization process so that medicament is sufficiently mixed with ore pulp, and the mineralising jet pipe is using as follows
Structure, referring to Fig. 3, the mineralising jet pipe 5-3 includes jet pipe monomer and jet pipe monomer is spliced, the jet pipe
Monomer includes body 5-30, and the both ends of the body are provided with adpting flange 5-31, and one end is provided with positioning boss 5-32 in body；
Dextrorotation conveyor screw 5-33 or derotation conveyor screw 5-34, dextrorotation or derotation conveyor screw and convex are inserted in positioning boss side pipe body
Platform contacts；The diameter that the length of dextrorotation or the derotation conveyor screw is more than body is less than the 1/2 of tube length；The dextrorotation is anti-
The height for revolving conveyor screw is more than the 1/3 of the body radius radius for being less than or equal to body；A jet pipe in two jet pipe monomers
Monomer is connected to form mineralising jet pipe with spiral body end with another jet pipe monomer without spiral body end by flange；Mineralising
One end of jet pipe carries conveyor screw, and the other end of mineralising jet pipe is without conveyor screw, the mineralising jet pipe end with conveyor screw
Micro-bubble mineralizer is connected, fluid jet nozzle is connected without the mineralising jet pipe end of conveyor screw.
The fluid jet nozzle 5-4 includes connecting tube 5-40 and hollow type jet body 5-41, the connecting tube and hollow type are penetrated
Fluid is fixedly connected；The connection tube end connects the bottom of mineralising jet pipe by flange；On the hollow type jet body
It is laid with several jet orifice 5-42, all jet hole area sums and the surface area of hollow type jet body on hollow type jet body
The ratio between be 1:2~4；All jet hole area sums are more than the sectional area of connecting tube on hollow type jet body.Using said structure
Fluid jet nozzle reduce the ore pulp pressure that ejects, avoid because injection pressure is excessive, and cause inner cylinder in that appearance is larger to be turned over
Flower so that the thickness positioned at the turbulent layer of flotation bottom of the barrel reduces, and because the height of flotation cylinder is constant, makes the flotation positioned at upper strata
The thickness of layer (stratosphere) is relative to subtract increase, and then extension microvesicle is in the stroke of flotation layer so that microvesicle in uphill process more
More concentrate particles are attached on microvesicle, improve flotation precision and flotation efficiency.
In order that ore pulp uniformly sprays to surrounding；Above-mentioned jet body is preferably a hollow spheroid, hemisphere or cylinder
Shape cylinder, Fig. 4 is referred to Fig. 6.
In order to avoid the ore pulp of partly permineralization is directly entered secondary washing process, pass through branch in the inner cylinder
Fagging 15-1 is provided with reflection cone 15, refers to Fig. 7；The vertex of a cone of the reflection cone is located at fluid jet nozzle side, reflects the center of cone
Line overlaps with the center line of flotation cylinder；Gap, shape are left with inner cylinder lower end cone inwall in the edge of the reflection cone bottom surface
Into ore pulp circulation canal；Gap width is 100mm~150mm；It is described reflection cone distance of curved surface fluid jet nozzle lower end it is vertical away from
From for 300mm~500mm, washing efficiency is improved by said structure.
Operation principle of the present invention：Ore pulp enters pulp distributer by ore pulp delivery duct, and pulp distributer divides ore pulp
Microvesicle mineralization unit is fitted on, under the effect of the pressure, ore pulp is forced from micro-bubble mineralizer by being produced in micro-bubble mineralizer big
The microvesicle of amount carries out mineralising to ore pulp, and the ore pulp that mineralising is crossed enters inner cylinder, the ore deposit that mineralising is crossed through mineralising jet pipe and fluid jet nozzle
Slurry smoothly ramped up in the presence of microvesicle buoyancy it is floating, rise it is floating during hydrophily spoil particles sink, finally enter floating
Select cylinder bottom to be discharged by tailings discharging pipe, and hydrophobicity cleaned coal particle constantly rise the floating last concentrate hopper that overflows to and arranged from concentrate mouth
Go out；In floatation process, the suction nozzle on micro-bubble mineralizer forms a negative pressure, due to the wind of suction nozzle connection Qu Pao mechanisms
Cylinder, therefore a upward negative pressure will be formed in air duct, the axle stream that this negative pressure can be with drive installation in air duct on central shaft
Flabellum rotates, and axial flow fan leaf, which rotates, drives drive bubble blade to rotate；Drive blade by it is steady promote carry the foam of concentrate particle to
Concentrate overflow launder direction moves horizontally, in floatation process, according to air inlet number automatically adjust driving blade rotating speed, specifically
For, suction nozzle air inflow is more, and microvesicle is also more caused by micro-bubble mineralizer, and then causes the froth bed on flotation cylinder upper strata
Thickness it is long-range, at the same time, negative pressure caused by suction nozzle place is also bigger, and caused power is also bigger in air duct,
The rotating speed of drive bubble blade is also faster, and then can be and realize that froth bed is accelerated to the speed that overflow launder direction moves horizontally, and makes production
It is directly proportional with the speed for driving bubble to steep speed, avoids foam from accumulating, the excessive phenomenon of foam.In floatation process, dextrorotation spiral shell is utilized
Revolve the effect of body and derotation conveyor screw so that ore pulp is forming reciprocating type rotary motion in mineralising jet pipe, in mineralising jet
Turbulent phenomenon possessed by itself in pipe, and then strengthen the mineralization degree of ore pulp, improving flotation efficiency for the later stage lays the foundation.Adopt
With decompression type fluid jet nozzle, in floatation process, fundamentally change ore pulp in course of conveying due to flow velocity and the original of pressure
Cause, to ore pulp bring it is huge spring up and roll, and then reduce the thickness of the turbulent layer in flotation cylinder, due to the height of flotation cylinder
Spend it is constant, make positioned at turbulent layer upper strata flotation layer (stratosphere) thickness relative increase, and then extend microvesicle in flotation layer
Stroke so that microvesicle more concentrate particles in uphill process are attached on microvesicle, improve flotation precision and flotation efficiency.
Installation reflection cone in inner cylinder, in floatation process, the ore pulp of part permineralization is avoided directly to enter two by circulation pipe
Secondary washing process, and then improve flotation efficiency.
It is described above to be only the preferred embodiments of the present invention, any formal limitation not is made to the present invention,
Every technical spirit according to the present invention belongs to any simple modification made for any of the above embodiments, equivalent variations and modification
In the range of technical solution of the present invention.
Claims (10)
1. a kind of jet micro-bubble flotation machine, including frame, the flotation cylinder for being fixedly mounted on frame upper end, are fixedly mounted on flotation cylinder
The pulp distributer mounting bracket of upper end, the pulp distributer being fixedly mounted on pulp distributer mounting bracket, pulp distributer
Connect ore pulp delivery duct；The excircle of the pulp distributer uniformly connects several microvesicle mineralising lists by ore pulp distribution pipe
Member；The top of the flotation cylinder is cylindrical structure, and the bottom of flotation cylinder is conical structure；The bottom of the flotation cylinder
The bottom of cone connects liquid level adjuster by communicating pipe, and the liquid level adjuster is provided with tailings discharging pipe, the mine tailing
Delivery pipe connects mine tailing storage cylinder；The upper end of the flotation cylinder is along the circumferential direction provided with concentrate overflow launder, concentrate overflow launder
At least one concentrate collection port in bottom, concentrate collection port pass through concentrate delivery pipe connect concentrate storage cylinder；
Inner cylinder is installed in the cone of flotation cylinder bottom, tailings discharging passage is provided between the inner cylinder and flotation cylinder；
The upper end of the inner cylinder is cylindrical structure, and the bottom of inner cylinder is conical structure, and the upper end of the inner cylinder is provided with
Turbulence plate, the turbulence plate are provided with flowing hole；
The bottom connection ore pulp circulation pipe of the cone of the inner cylinder, the other end connection pulp distributer of ore pulp circulation pipe；
The microvesicle mineralization unit includes the micro-bubble mineralizer that is connected with above-mentioned ore pulp distribution pipe, be provided with the micro-bubble mineralizer into
Valve, the bottom connection mineralising jet pipe of micro-bubble mineralizer, the bottom of the mineralising jet pipe extends to through turbulence plate
Inner cylinder；The end connection fluid jet nozzle of the mineralising jet pipe；
It is characterized in that：Self-regulation air-flowing type is installed on the lower section pulp distributer mounting bracket of the pulp distributer and drives bubble machine
Structure, the self-regulation air-flowing type Qu Pao mechanisms include air duct, and the center line of the air duct overlaps with the center line of flotation cylinder, described
The lower end of air duct is air inlet, and the upper end of air duct is sealed and installed with lid, air outlet, the air-out are laid with the upper lid
The quantity of mouth is at least identical with the quantity of microvesicle mineralization unit；The air outlet is connected on micro-bubble mineralizer respectively by pipeline
Suction nozzle；Gate valve is installed, the axial direction of the air duct interior edge air duct is provided with central shaft, the center line of central shaft on pipeline
Overlapped with the center line of air duct；Axial flow fan leaf is installed in air duct on central shaft；The bottom of the central shaft extends to floating
In the froth bed for selecting the formation of cylinder upper end；Installed in the end of central shaft and drive the foam for carrying concentrate particle to concentrate overflow launder
The drive bubble blade that direction moves horizontally, the bubble blade that drives is at least provided with five；The bottom for driving bubble blade is located at flotation cylinder
Upper surface is concordantly or more than upper surface；The bottom of the air duct is also equipped with adjusting the flashboard of intake.
2. jet micro-bubble flotation machine according to claim 1, it is characterised in that：The bottom sealing installation of the central shaft
There is pressure bubble guide shell, bubble blade is driven in the outer wall installation of the pressure bubble guide shell；The lower end of pressure bubble guide shell is provided with deflection cone, water conservancy diversion
The center line of cone overlaps with the center line of flotation cylinder.
3. jet micro-bubble flotation machine according to claim 2, it is characterised in that：The cone angle of the deflection cone is less than or equal to
45°。
4. jet micro-bubble flotation machine according to claim 1, it is characterised in that：Described upper lid is spherical structure.
5. jet micro-bubble flotation machine according to claim 1, it is characterised in that：The mineralising jet pipe includes two jets
Pipe monomer is spliced, and the jet pipe monomer includes body, and the both ends of the body are provided with adpting flange, one end in body
Provided with positioning boss；Dextrorotation or derotation conveyor screw, dextrorotation or derotation conveyor screw and convex are inserted in positioning boss side pipe body
Platform contacts；The diameter that the length of dextrorotation or the derotation conveyor screw is more than body is less than the 1/2 of tube length；The dextrorotation is anti-
The height for revolving conveyor screw is more than the 1/3 of the body radius radius for being less than or equal to body；
A jet pipe monomer carries spiral body end without spiral body end and another jet pipe monomer in two jet pipe monomers
Connect to form mineralising jet pipe by flange；One end of mineralising jet pipe carries conveyor screw, the other end of mineralising jet pipe without
Conveyor screw, the mineralising jet pipe end connection micro-bubble mineralizer with conveyor screw, is connected without the mineralising jet pipe end of conveyor screw
Fluid jet nozzle.
6. jet micro-bubble flotation machine according to claim 1, it is characterised in that：The fluid jet nozzle includes connecting tube with
Empty formula jet body, the connecting tube are fixedly connected with hollow type jet body；The connection tube end connects mineralising by flange and penetrated
The bottom of flow tube；It is laid with several jet orifices on the hollow type jet body, all jet hole faces on hollow type jet body
Product sum and the surface area ratio of hollow type jet body are 1:2~4；All jet hole area sums are more than on hollow type jet body
The sectional area of connecting tube.
7. jet micro-bubble flotation machine according to claim 6, it is characterised in that：The jet body is a hollow ball
Body, hemisphere or cylindrical tube.
8. jet micro-bubble flotation machine according to claim 1, it is characterised in that：It is provided with the inner cylinder by supporting plate
Reflection cone, the vertex of a cone of the reflection cone are located at fluid jet nozzle side, and the center line for reflecting cone overlaps with the center line of flotation cylinder；It is described
The gap of leaving at the edge and inner cylinder lower end cone inwall of reflection cone bottom surface, forms ore pulp circulation canal；Gap width is 100mm
~150mm；The vertical range of the distance of curved surface fluid jet nozzle lower end of the reflection cone is 300mm~500mm.
9. jet micro-bubble flotation machine according to claim 1, it is characterised in that：The upper plane of inner cylinder is located at the 1/ of flotation cylinder
At 3~1/2.
10. jet micro-bubble flotation machine according to claim 1, it is characterised in that：The cone of the cone of the inner cylinder lower end
Angle is more than the cone angle of flotation cylinder lower end cone；The gap of mine tailing porch to the mine tailing exit at two cone cooperations
Gap gradually increases.
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| CN201710786682.7A CN107362911B (en) | 2017-09-04 | 2017-09-04 | Jet flow micro-bubble flotation machine |
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| CN201710786682.7A CN107362911B (en) | 2017-09-04 | 2017-09-04 | Jet flow micro-bubble flotation machine |
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| CN108246515A (en) * | 2018-03-28 | 2018-07-06 | 中国矿业大学 | A kind of size mixing flotation integral system and method for floating of sizing mixing with internal circulatory function |
| CN108672103A (en) * | 2018-06-28 | 2018-10-19 | 中国铝业股份有限公司 | A kind of bauxite decanter type floatation equipment and method for separating |
| CN109513529A (en) * | 2018-12-29 | 2019-03-26 | 中煤（天津）洗选科技有限公司 | A kind of vertical ore pulp surface property modifier |
| CN110732412A (en) * | 2019-10-28 | 2020-01-31 | 太原睿孚特选煤技术有限公司 | cavitation jet flow microbubble flotation machine and cavitation jet flow bubble generator |
| WO2020025853A1 (en) | 2018-08-01 | 2020-02-06 | Outotec (Finland) Oy | Flotation cell |
| WO2020025850A1 (en) | 2018-08-01 | 2020-02-06 | Outotec (Finland) Oy | Flotation cell |
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| CN110787913A (en) * | 2018-08-01 | 2020-02-14 | 奥图泰(芬兰)公司 | Flotation cell |
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| CN111389599A (en) * | 2020-01-19 | 2020-07-10 | 湖南长欣博远工程技术有限公司 | Jet type short column flotation machine |
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| CN110787915A (en) * | 2018-08-01 | 2020-02-14 | 奥图泰(芬兰)公司 | Flotation system, flotation line and use thereof |
| EP3829777A4 (en) * | 2018-08-01 | 2022-04-13 | Metso Outotec Finland Oy | Flotation cell |
| WO2020025850A1 (en) | 2018-08-01 | 2020-02-06 | Outotec (Finland) Oy | Flotation cell |
| US20210323002A1 (en) * | 2018-08-01 | 2021-10-21 | Metso Outotec Finland Oy | Flotation Cell |
| EP3829776A4 (en) * | 2018-08-01 | 2022-04-13 | Metso Outotec Finland Oy | Flotation cell |
| EP3829773A4 (en) * | 2018-08-01 | 2022-04-13 | Metso Outotec Finland Oy | Flotation cell |
| CN109513529B (en) * | 2018-12-29 | 2023-12-15 | 中煤（天津）洗选科技有限公司 | Vertical ore pulp surface modifying machine |
| CN109513529A (en) * | 2018-12-29 | 2019-03-26 | 中煤（天津）洗选科技有限公司 | A kind of vertical ore pulp surface property modifier |
| CN110732412A (en) * | 2019-10-28 | 2020-01-31 | 太原睿孚特选煤技术有限公司 | cavitation jet flow microbubble flotation machine and cavitation jet flow bubble generator |
| CN111389599A (en) * | 2020-01-19 | 2020-07-10 | 湖南长欣博远工程技术有限公司 | Jet type short column flotation machine |
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