CN107159471B - Has ore pulp from driving and the floatation equipment of self-priming airway dysfunction - Google Patents

Abstract

It sizes mixing flotation process field the present invention relates to coal slime, and in particular to a kind of to have ore pulp from driving and the floatation equipment of self-priming airway dysfunction.The present invention includes flotation cell and the shunt assembly for realizing jet mixing function, the high-pressure jet assembly for realizing turbulent mixture function and for realizing the lower mixing component for being stirred function.The present invention integrates ore pulp mixing and flotation function, and have that low energy consumption, maintenance capacity is low, Self inhaling and the advantages of good separation effect, it can be while the efficient flotation separation demand of realization ore pulp efficiently and controllably, it also can be reduced the equipment investment of coal preparation plant's early period, so that the real cost of production of coal preparation plant be effectively reduced.

Description

Has ore pulp from driving and the floatation equipment of self-priming airway dysfunction

Technical field

It sizes mixing flotation process field the present invention relates to coal slime, and in particular to one kind has ore pulp from driving and self-priming airway dysfunction Floatation equipment.

Background technique

Floatation is most important interface method for separating, sharp in the separating flotation of polymetallic ore, the synthesis of complex ore With being widely applied in the fields such as, iron ore flotation and non-metallic ore flotation, even more -0.1mm coal slime uniquely has The method for separating of effect.The theoretical basis of various floatation process is substantially the same, i.e., ore particle is because of the hydrophobic property of own face or through floating Hydrophobic (the close gas or oil) characteristic obtained after pharmacy effect is selected, so that aggregation can occur for ore particle now in liquid-gas or water-oil interface As.Most widely used at present is froth flotation method, including following below scheme: 1), ore through broken make various mineral solutions with grinding From at monomer particle, and granular size is made to meet floatation process requirement.2) various floating agents, are added simultaneously to the ore pulp after ore grinding Stirring reconciles, and makes to act on mineral grain, to expand the intergranular floatability difference of different minerals.3) ore pulp, mixed up is sent into Flotation cell, stirring inflation.4), the ore particle in ore pulp and bubble contact, collision, the good ore particle of floatability are selectively adhered to gas The mineralized froth layer for rising and becoming airwater mist cooling composition is steeped and be carried, is overflowed through machinery scraping or from mineral slurry level, then take off Water is dried to concentrate product.The mineral grains such as not floaty gangue are arranged from flotation trench bottom as product from failing with ore pulp Out.

Flotation device used in froth flotation method is divided into mechanical agitation type and without machinery by the difference of inflation and agitating mode Stirring-type two major classes.Agitation impeller flotator use is the most remote, there is the history of last 100 years by ore dressing to coal separation, can be floating Slot is selected to provide turbulent environment, but disadvantage is that energy consumption is high and maintenance capacity is big.It is floating that no agitation impeller flotator is also known as inflatable Machine is selected, pump is used to provide energy for ore pulp, is dispersed by the jet stream of ore pulp, collision, draws enough air, the disadvantage is that needing to match The pump of set, and energy consumption is high.Meanwhile on-mechanical agitation type flotation machine be due to that will guarantee enough mine amount flows and inspiratory capacity, so that Usually excessive turbulence, the particle that will lead to mineralising fall off flotation cell flow field in floating-upward process, to influence flotation effect Fruit.

Summary of the invention

It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, provide a kind of structure it is simple and practical have mine Slurry from driving and self-priming airway dysfunction floatation equipment, integrate ore pulp mixing and flotation function, and have low energy consumption, repair The advantages of measuring low, Self inhaling and good separation effect, can efficiently and while the efficient flotation separation demand of controllable realization ore pulp, It also can be reduced the equipment investment of coal preparation plant's early period, so that the real cost of production of coal preparation plant be effectively reduced.

To achieve the above object, the invention adopts the following technical scheme:

It is a kind of to have ore pulp from driving and the floatation equipment of self-priming airway dysfunction, it is characterised in that: this equipment includes flotation cell And the stirring system in flotation cell, and stirring system include at least for realizing jet mixing function shunt assembly, For realizing the high-pressure jet assembly of turbulent mixture function and for realizing the lower mixing component for being stirred function；Wherein:

Shunt assembly includes the shell for having hollow cavity, and housing tip is connected to main ore pulp pipe through feed opening is opened up Road, housing bottom extends twice or more and is connected to the isocon of housing cavity, and the discharge end of each isocon is fixed in jet stream At the input end of spray head；

High-pressure jet assembly includes high-pressure chamber, and being disposed with for high-pressure chamber's inner axis vertical can be turned round along own axes The shaft of movement is coaxially fixed with driving wheel in shaft；Each fluid jet nozzle along high-pressure chamber circumferential direction and run through high-pressure chamber Locular wall, and the outlet end of each fluid jet nozzle is directed toward at the blade blade face of upper driving wheel, the jet direction of fluid jet nozzle and upper drive The rotation direction of driving wheel is in the same direction each other；High-pressure jet assembly further includes the barrier of sizing mixing being arranged at immediately below driving wheel, institute Stating barrier of sizing mixing includes the inner sleeve with shaft coaxial arrangement, radially outward equal in divergent shape around the outer tube wall of inner sleeve It is furnished with the grid plate of straight panel shape；That concentric annular is gone back outside inner sleeve is provided with multiple tracks outer sleeve, at least so that per adjacent housing Form that top bore is big between cylinder and adjacent louver plate and the fluidic channel for the bucket chamber shape that lower part bore is small；At the bottom of high-pressure chamber Coaxial at end to have extended downwardly discharge barrel, the lower part outlet for barrier of sizing mixing is directed toward the feed end of discharge barrel；

Lower mixing component includes lower stirring wheel, and the lower stirring wheel is coaxially fixed on the bottom axial end of shaft, and discharges The discharging path of cylinder is located in the wheel blade stirring range of lower stirring wheel.

Preferably, the isocon is six and along the vertical axis of the shell of hollow cylindrical and around uniformly distributed, shell Inner chamber bottom surface at be evenly equipped with intercommunicating pore for being connected to corresponding isocon；The also upward projection of vertical at the inner chamber bottom surface of shell Have a coniform taper divider, the axis and feed opening and shell axis of the taper divider coaxially to each other, and taper point The bottom surface of depressor is formed by circular wheel profile and is located on the most inner side bus of each intercommunicating pore.

Preferably, the fluid jet nozzle includes inner nozzle and outer nozzle, and the inner nozzle includes that directly connection isocon goes out The cone cell necking section expecting the straight pipe at end and being connected at straight pipe outlet end；Straight pipe wall coaxial hoop is equipped with annular connection Plate, coaxial sleeve is equipped with outer nozzle at annular connecting plate outer rim and the jet direction of outer nozzle and the jet direction of inner nozzle are same each other To；The straight tube body of outer nozzle, the cone tube for constituting outer nozzle, the outer tube wall of inner nozzle and annular connecting plate is constituted to enclose jointly The lumen for realizing air water medicine three-phase mixed function of outer nozzle is formed, and the outlet end of cone cell necking section is located at outer nozzle In lumen for realizing air water medicine three-phase mixed function；Through setting air intake duct to be connected to external gas medicine on annular connecting plate The lumen for realizing air water medicine three-phase mixed function in source and outer nozzle.

Preferably, the upper driving wheel is the power turbine construction for having the blade of scroll；The blade of the above driving wheel Far from upper driving wheel wheel shaft one end be distal end, the fluidic paths of fluid jet nozzle are opposite with the intersection point of the blade of upper driving wheel to be leaned on The far-end of the nearly blade.

Preferably, the high-pressure chamber include from top to bottom be arranged pass sequentially through the affixed blind flange of flange, it is upper it is thin under The upper conical cylinder of thick bell mouth shape and upper coarse and lower fine funnelform inferior pyramidal cylinder, the funnel bottom end of inferior pyramidal cylinder again and go out Flange cooperation is constituted between the feed end of barrel；Barrier of sizing mixing is attached at the funnel-form inner cavity of inferior pyramidal cylinder.

Preferably, it is coaxially disposed upper bearing (metal) on the blind flange, and the funnel bottom end of inferior pyramidal cylinder and the charging of discharge barrel Lower bearing is folded between end；Shaft is each passed through upper bearing (metal) and lower bearing and constitutes interference fit therewith.

Preferably, the lower stirring wheel includes intermediate sleeve and the circumferentially uniformly distributed stirring around intermediate sleeve axis Leaf, each paddle shape are in the rectangular plate of plate face vertical setting, and horizontal recessed fluted at the suspension end of each paddle So that each paddle constructs on the axial cross section of intermediate sleeve in " recessed " shape plate body.

Preferably, the bottom end of discharge barrel is provided with the diffuser of up-thin-low-thick bell mouth shape.

The beneficial effects of the present invention are:

1), traditional flotation operation other than pulp conveying pump, even more needs to match to obtain good flotation effect Set special coal slurry pretreatment unit and inflating and stirring device.In view of this, the present invention is in existing agitation type flotation machine and spray Penetrate in the structure basis of formula flotation device, with shunt assembly come realize ore pulp it is preliminary divide equally and mixed once function, with high pressure chest Room cooperation sizes mixing barrier to realize the pressurized jet and secondary mixed function of ore pulp, then under the discharge barrel collocation with diffuser Stirring wheel is final to realize to the quick mixing of ore pulp and efficient flotation separation function to realize mixed effect three times.Especially it is worth note Meaning, high-pressure chamber of the invention are actually to use as energy storage room.Ore pulp is by preliminary uniformly distributed and preliminary mixing Afterwards, a large amount of high pressure gas is also carried while jet stream enters high-pressure chamber；The present invention cleverly utilizes the high pressure gas to exist The indoor savings property of high pressure chest and pressure, so that the ore pulp that gas-liquid medicine three mixes is along the barrier that uniquely exports namely size mixing Fluidic channel and eject.It is each at this time due to the fluidic channel structure of the unique grid-like cone bucket shape of grid of sizing mixing itself The unit that a fluidic channel can regard autonomous working as is sized mixing area.When the indoor high pressure ore pulp of high pressure chest passes through barrier of sizing mixing Cutting shunts, thus when each unit sizes mixing and forms small-scale flow of slurry in area, the unique accumulation of energy structure of high-pressure chamber Collocation unit is sized mixing the special tectonic in area, may make top continuously ore pulp from unit size mixing area lower part outlet injection and Out, achieve the purpose that repeatedly turbulent ore pulp.Liquid stream along unit size mixing area it is spouting while, cluster fluidic can be generated naturally Dispersion and atomizing effect, dispersibility and sprayability are extremely strong, and the mixed effect of whole device can be obviously improved.

To sum up, the present invention integrates ore pulp mixing and flotation function, and the energy of entire mechanism work is mainly from mine Delivery pump is starched, entire flotation operation is more energy saving than traditional floatation process and equipment, and maintenance capacity is lower.The present invention can be efficient And while the efficient flotation separation demand of controllable realization ore pulp, moreover it is possible to the equipment investment of coal preparation plant's early period is reduced, to effectively drop The real cost of production of low coal preparation plant.Practice have shown that flotation mode of the invention have flotation effect more preferably, bubble mineralization more holds Easily, effective guarantor can be obtained in the flotation cell advantage more stable without flotation " dead zone " and froth bed, working efficiency and flotation effect Card.

2), as the further preferred scheme of above scheme, isocon is preferably six points of devices.In use, even concentration Floatation feed is sent in six points of devices by pumping from main ore slurry pipeline, and realizes ore pulp uniform divided flows function by six points of devices. Focus on, the present invention is provided with taper divider in six points of device bottoms, and the bottom surface of taper divider is formed by circle Contour line is located on the most inner side bus of each intercommunicating pore, so that the pressure for having pressure ore pulp in main ore slurry pipeline can be fine Ground is transmitted in six isocons of the housing bottom of six points of devices.Each ore pulp can be bored directly via main ore slurry pipeline The tip of shape divider is cut and is divided equally, and transits to isocon entrance naturally along the conical surface of taper divider, to prevent this Ore pulp directly impacted as main ore slurry pipeline housing bottom and therewith caused by pressure loss situation.

3), further, six isocons are connected with six fluid jet nozzles respectively, and six fluid jet nozzles are arranged by circumference In the cavity wall of high-pressure chamber.It, can be first in the outer nozzle of fluid jet nozzle for real when there is pressure ore pulp to enter fluid jet nozzle Preliminary retention in the lumen of existing air water medicine three-phase mixed function, with the large quantity of air sucked from air intake duct, so that empty The outlet end of the mixture of gas, medicament and ore pulp from the cone tube of outer nozzle is spouting, realizes its mixed function.

4), under the impact for the jet stream ore pulp with kinetic energy that fluid jet nozzle ejects, upper driving wheel is upper because blade is located at At the fluidic paths for stating jet stream ore pulp, therefore the rotational action along shaft is generated therewith.The rotational action of upper driving wheel, a side Face is to provide rotational power for the lower stirring wheel of bottom, to complete the mixed function three times to ore pulp；On the other hand, it is penetrated Ore pulp is flowed to hit and the upper driving wheel of high-speed rotation, blade also can generate dissection to the indoor air stream of high pressure chest, Microvesicle phenomenon is generated to mix with water flow, and then large-scale microvesicle mixed function can be realized in high-pressure chamber.Upper drive Driving wheel should be scroll impeller, and the drop point of jet stream ore pulp is located to concave surface and the far-end of the blade of upper driving wheel, to protect Action response and sensitivity of the driving wheel to jet stream ore pulp on card.

5), high-pressure chamber can integrally be divided into superposed up-thin-low-thick upper conical chamber and positioned at the upper thick of lower part Thin inferior pyramidal chamber down, two taper chambers are affixed each other by ring flange.Inferior pyramidal chamber is made of inferior pyramidal cylinder, thus Offer sizes mixing barrier with accommodation space, and the ore pulp ejected at the barrier that ensures using the funnel-form characteristic of itself to size mixing is poly- Hold together and acceleration effect.Upper conical chamber is then made of blind flange and upper conical cylinder, and on the one hand the inner cavity of upper conical cylinder constitutes and drives The placing chamber of driving wheel, on the other hand the barrel of upper conical cylinder then constitutes the fixation wall of fixed fluid jet nozzle.Due to upper conical cylinder Barrel is conical surface shape structure, therefore actually fluid jet nozzle is in placement, it should also be driven up in the oblique finger at certain inclination angle The blade of wheel, the exclusive turbine wheel structure of the blade of driving wheel, enables just fluid jet nozzle to be directed at driving in collocation The blade of wheel realizes the maximization transmission effect of ore pulp kinetic energy.

6), mixing component namely paddle under the setting of the lower part of shaft, paddle by intermediate sleeve and tuning fork-like or Say be " recessed " letter stencil shape paddle composition.The paddle of tuning fork-like can be realized the Double stirring effect to ore pulp, thus into One step increases ore pulp and medicament air contacting efficiency.

Detailed description of the invention

Fig. 1 is schematic cross-sectional view of the invention；

Fig. 2 is the structural schematic diagram of fluid jet nozzle；

Fig. 3 is the relative position top view of fluid jet nozzle and upper driving wheel；

Fig. 4 is the structural schematic diagram of upper driving wheel；

Fig. 5 is the top view of barrier of sizing mixing；

Fig. 6 is the top view of lower stirring wheel；

Fig. 7 is the relative position top view of intercommunicating pore and taper divider.

It illustrates each structure and component names corresponding relationship of the invention is as follows:

The main ore slurry pipeline of a-

11- shell 11a- intercommunicating pore 12- isocon 13- fluid jet nozzle

13a- straight pipe 13b- cone cell necking section 13c- annular connecting plate

13d- straight tube body 13e- cone tube 13f- air intake duct 14- taper divider

Driving wheel 23- sizes mixing barrier on 21- shaft 22-

23a- inner sleeve 23b- outer sleeve 23c- grid plate 24- discharge barrel

The upper conical cylinder 25c- inferior pyramidal cylinder of 25a- blind flange 25b-

Stirring wheel 31- intermediate sleeve 32- paddle 32a- groove under 30-

40- upper bearing (metal) 50- lower bearing 60- flotation cell

Specific embodiment

For ease of understanding, here in connection with Fig. 1-7, specific embodiments of the present invention are made described further below:

Concrete composition part of the invention is divided into several big modules, comprising: flotation cell 60, shunt assembly, high-pressure jet assembly And lower mixing component, it is described one by one below:

1, flotation cell

Flotation cell 60 can configure attached floating operation structure such as foam scraping machine etc. as conventional floatation equipment, thus Realize its intrinsic flotation function.

2, shunt assembly

When shunt assembly is using structure shown in Fig. 1-2 and Fig. 7 as specific embodiment, mainly it is subdivided into six points of devices and is connected to The fluid jet nozzle 13 of 12 end of isocon of six points of devices.

Chief component of six points of devices as shunt assembly is in order to which the floatation feed of main ore slurry pipeline a to be divided into Six tunnels output and be arranged, small volume and be sealing structure.And taper is arranged in the centre bottom of the shell of six points of devices 11 Divider 14 can then prevent having pressure ore pulp to be directly impinging 11 intracavity bottom of shell in main ore slurry pipeline a, to avoid mine Slurry causes stress loss because rising to again.The unique cone point of taper divider 14 can be effectively directly by ore pulp flow point Six strands of mine streams are dissipated into, and the inner space section of six points of devices sees it is up big and down small taper configurations, it is clear that can also be conducive to pressure Quick transmitting.

Fluid jet nozzle 13 is made of inner nozzle, outer nozzle, air intake duct 13f, annular connecting plate 13c.Inner nozzle and outer nozzle The cone angle of cone cell necking section 13b and cone tube 13e be 28 °, the fluid energy losses of this angle are minimum.Have pressure ore pulp from The cone cell necking section 13b of inner nozzle is spouting, and realizes that air-liquid, medicine three mix in the lumen of outer nozzle, final to spray It goes out.Air intake duct 13f is connected with extraneous medicine source and/or medicine source, and working media can be the gaseous mixture of aerosolized medication and air Body can also be simple air.It is assumed herein that the ore pulp in inner nozzle is to mix when air intake duct 13f is that air is drawn merely The ore pulp of medicament.Assuming that air intake duct 13f sucking be the mixed gas of medicament and air when, then be not add in inner nozzle The ore pulp of medicament.Since air intake duct 13f is located on annular connecting plate 13c, when outer nozzle and inner nozzle pass through annular connecting plate 13c When combining, above-mentioned gas can be sucked by air intake duct 13f.

When practical operation, the diameter of outer nozzle is more much bigger than inner nozzle diameter, thus guarantee enough inspiratory capacities, so that The gettering ability of fluid jet nozzle 13 gives full play to.At this point, the mixed zone namely outer spray of ore pulp and medicament, air in fluid jet nozzle 13 Air stream and medicament stream are also drawn into strip by the violent mixing realized in the lumen of mouth, the jet stream ore pulp of high speed, are increased The contact area of coal grain, medicament, air, to improve a mineralization degree in mixed zone.

3, high-pressure jet assembly

As shown in Fig. 1 and Fig. 2-5, high-pressure jet assembly, actually mainly by high-pressure chamber, upper driving wheel 22, size mixing Barrier 23 forms.Wherein:

In high-pressure chamber vertical to revolution be combined with shaft 21.Upper driving wheel 22 is fixed in shaft 21, upper driving wheel 22 be power turbine structure, in order to bear and to the kinetic energy generation movement by the spouting jet stream ore pulp of fluid jet nozzle 13 Response.Position fluid jet nozzle 13 at ore pulp discharging path and upper driving wheel 22 blade relative position when, it is to be noted that a side Face, the far-end for the close blade that the drop point of the ore pulp discharging of fluid jet nozzle 13 should be opposite, and should not be located leaning on for blade The proximal end of nearly upper driving wheel axis, to promote action response and the sensitivity of upper driving wheel 22.On the other hand, fluid jet nozzle 13 Ore pulp discharging drop point should be located at blade cross central line at, so as to provide sufficiently large rush for the rotation of blade Hit torque.The scrollwork warpage radian of blade, the then spouting rear divergent flow beam formed in outlet based on ore pulp from outer nozzle On each streamline act on the contact point on blade, and with the orthogonal design principle of the tangent line of the contact point so that The impact force of ore pulp is sufficiently utilized.

After ore pulp impacts the blade of driving wheel 22, part energy rotates blade；Other energy makes mine The dispersion of slurry again, the ore pulp particle of agglomerate is broken up, and increases the contact area of ore pulp and medicament, high-speed rotating arc impeller Air stream is cut and dispersed into again for microvesicle, secondary raising remineralization efficacy again.Since upper driving wheel 22 is located at upper conical cylinder 25b In, the top of upper conical cylinder 25b is sealed set, and ore pulp is rich in a large amount of air in Inner extrusion, ore pulp, high-speed rotating Impeller can drive the ore pulp direction downward conically shaped 25c.When ore pulp enters inferior pyramidal cylinder 25c, adjusts grid and start to play work With.

The specific configuration of barrier 23 of sizing mixing can refer to shown in Fig. 1 and Fig. 5, by inner sleeve 23a, grid plate 23c and housing Cylinder 23b is collectively constituted.Concentric ring structure is collectively formed in inner sleeve 23a and the outer sleeve 23b of multilayer, and grid plate 23c is then along interior Radially connected each inner sleeve 23a and outer sleeve 23b of sleeve 23a.When above-mentioned connection structure, which ultimately forms, to be constructed shown in Fig. 5, At this time per between adjacent outer sleeve 23b and adjacent grid plate 23c and adjacent outer sleeve 23b and inner sleeve 23a and every It can show that upper opening is big between screen 23c and the fluidic channel for the grid cone bucket shape that lower openings are small.Each jet stream is logical The unit that road can regard autonomous working as is sized mixing area.Since barrier 23 of sizing mixing is arranged in the underface of upper driving wheel 22, it is located at Inside inferior pyramidal cylinder 25c, when the high pressure ore pulp in upper conical cylinder 25b is flowed into inferior pyramidal cylinder 25c, pass through barrier 23 of sizing mixing Cutting shunt, so that sizing mixing in each unit forms small-scale flow of slurry in area.The unique accumulation of energy structure of high-pressure chamber Collocation unit is sized mixing the special tectonic in area so that top continuously ore pulp from unit size mixing area lower part outlet injection and Out, it is finally reached repeatedly the effect of turbulent ore pulp.

4, lower mixing component

As shown in Figure 1 and Figure 6, lower stirring wheel 30 is also provided in the lower axial end of shaft 21.Lower stirring wheel 30 can be seen Work is the impeller of similar " rice " shape, by 32 groups of paddle of intermediate sleeve 31 and tuning fork-like " recessed " letter stencil shape in other words At.Unique " recessed " the word construction of paddle 32, can be realized the Double stirring effect to ore pulp, increases ore pulp and medicament air Contacting efficiency.

On the basis of above structure, used between blind flange 25a, upper conical cylinder 25b, inferior pyramidal cylinder 25c and discharge barrel 24 Flange is connected with each other.And for the stability of shaft 21, on blind flange 25a and between inferior pyramidal cylinder 25c and discharge barrel 24 Upper bearing (metal) 40 and lower bearing 50 is then accordingly arranged in place, to realize the rotary bearing assembly purpose of the freely-supported beam-like of shaft 21.

For ease of understanding, here in connection with Fig. 1, concrete operating principle and process of the invention are described as follows:

When initial operation, the floatation feed of even concentration is sent to six points of devices of shunt assembly by pumping from main ore slurry pipeline a In.Due to the effect of taper divider 14, the floatation feed uniformly cut and almost without the pressure loss quickly be diverted into as In Fig. 1 and six isocon 12 shown in Fig. 7, and eventually enter into the fluid jet nozzle 13 of 12 end of isocon.There is pressure ore pulp to enter When in fluid jet nozzle 13, negative pressure can be formed in the lumen of outer nozzle, it is empty with the large quantity of air sucked from air intake duct 13f It is spouting that gas mixes medicament, the outlet of ore pulp from outer nozzle, realizes the mixed once function of shunt assembly.

When the mixed ore pulp of ore pulp, medicament, air is spouting from fluid jet nozzle 13, the mixed ore pulp can be rushed first The blade of driving part is hit, to drive 21 high speed rotation of shaft.The lower stirring wheel 30 for being fixed on 21 lower part of shaft starts Rotation, to transfer the ore pulp that agitation is located in flotation cell 60 using mixed ore pulp as power.When ore pulp impacts blade, blade Also air stream can be cut by microvesicle by turning effort in turn, to disperse ore pulp and medicament.In view of high-pressure chamber Sealing structure, therefore hyperbaric environment can be formed in inside under the continuous injection of external pressure, this makes can be rich in big in ore pulp The air of amount, and place mat is performed for the turbulent flow injection of subsequent ore pulp.

Due to the indoor hyperbaric environment of high pressure chest, discharging can be injected to by sub-high pressure again by causing ore pulp to pass through when sizing mixing barrier 23 In cylinder 24.Size mixing barrier 23 each unit size mixing area lower port just as nozzle one by one, can constantly by ore pulp It is mixed with medicament, air extrusion, after the discharge of the pressure stabilizing of discharge barrel 24 and diffuser, a large amount of microvesicles being rich in ore pulp are analysed Out, entire flotation cell 60 is diffused, provides enough carriers for the flotation of coal slime.Later, spouting via 24 discharge of discharge barrel Ore pulp can again pass by lower stirring wheel 30 and stir.32 energy of paddle of the tuning fork-like of lower stirring wheel 30 " recessed " letter stencil shape in other words Ore pulp in enough effectively cutting flotation cells, increases the remineralization efficacy of ore pulp, medicament, air, improves mineralising efficiency.Later, such as Fig. 1 Shown in, mineral laden bubble floats up to the top of the groove body of flotation device, is scraped bubble structure therewith and scraped, and entire flotation stream is finally completed Journey.

To sum up, the present invention integrates ore pulp mixing and flotation function, and the energy of entire mechanism work is mainly from mine Delivery pump is starched, flotation operation is more energy saving than traditional floatation process and equipment, and maintenance capacity is lower.The present invention can efficiently and can While the efficient flotation separation demand of the realization ore pulp of control, moreover it is possible to the equipment investment of coal preparation plant's early period is reduced, so that choosing be effectively reduced The real cost of production in coal works.Practice have shown that flotation mode of the invention have flotation effect more preferably, bubble mineralization be easier, The flotation cell advantage more stable without flotation " dead zone " and froth bed, working efficiency and flotation effect can be effectively ensured, Obviously the actual demand of current coal preparation plant can effectively be met.

Claims (8)

1. a kind of have ore pulp from driving and the floatation equipment of self-priming airway dysfunction, it is characterised in that: this equipment includes flotation cell (60) and be located at flotation cell (60) in stirring system, and stirring system include at least for realizing jet mixing function point Flow component, for realizing the high-pressure jet assembly of turbulent mixture function and for realizing the lower stirring group for being stirred function Part；Wherein:

Shunt assembly includes the shell (11) for having hollow cavity, and shell (11) top is connected to main mine through feed opening is opened up It starches pipeline (a), the isocon (12) that shell (11) bottom end extends twice or more and is connected to shell (11) inner cavity, and each isocon (12) discharge end is fixed at the input end of fluid jet nozzle (13)；

High-pressure jet assembly includes high-pressure chamber, and being disposed with for high-pressure chamber's inner axis vertical can make revolution movement along own axes Shaft (21), be coaxially fixed with driving wheel (22) in shaft (21)；Each fluid jet nozzle (13) along high-pressure chamber circumferential direction and Through the locular wall of high-pressure chamber, and the outlet end of each fluid jet nozzle (13) is directed toward at the blade blade face of upper driving wheel (22), jet stream The jet direction of spray head (13) and the rotation direction of upper driving wheel (22) are in the same direction each other；High-pressure jet assembly further includes being arranged in Barrier of sizing mixing (23) at immediately below driving wheel (22), the barrier of sizing mixing (23) include the inner sleeve with shaft (21) coaxial arrangement Cylinder (23a), around inner sleeve (23a) outer tube wall and radially outward be in divergent shape the grid plate (23c) for being evenly equipped with straight panel shape； Also concentric annular is provided with multiple tracks outer sleeve (23b) to inner sleeve (23a) outside, at least so that per adjacent outer sleeve (23b) with Form that top bore is big between adjacent louver plate (23c) and the fluidic channel for the bucket chamber shape that lower part bore is small；In high-pressure chamber Bottom end is coaxial have been extended downwardly discharge barrel (24), and the lower part outlet of barrier of sizing mixing (23) is directed toward the charging of discharge barrel (24) End；

Lower mixing component includes lower stirring wheel (30), and the lower stirring wheel (30) is coaxially fixed on the bottom shaft end of shaft (21) Place, and the discharging path of discharge barrel (24) is located in the wheel blade stirring range of lower stirring wheel (30).

2. it is according to claim 1 it is a kind of have ore pulp from driving and self-priming airway dysfunction floatation equipment, it is characterised in that: The isocon (12) is six and along the vertical axis of the shell of hollow cylindrical (11) and around uniformly distributed, shell (11) it is interior The intercommunicating pore (11a) for being connected to corresponding isocon (12) is evenly equipped at the face of bottom of chamber；Also vertical at the inner chamber bottom surface of shell (11) Upward is convexly equipped with coniform taper divider (14), the axis and feed opening and shell (11) of the taper divider (14) Coaxially to each other, and the bottom surface of taper divider (14) is formed by circular wheel profile and is located at the most interior of each intercommunicating pore (11a) axis On side bus.

3. it is according to claim 1 or 2 it is a kind of have ore pulp from driving and the floatation equipment of self-priming airway dysfunction, feature exists In: the fluid jet nozzle (13) includes inner nozzle and outer nozzle, and the inner nozzle includes directly being connected to isocon (12) discharge end Straight pipe (13a) and be connected cone cell necking section (13b) at the outlet end straight pipe (13a)；Straight pipe (13a) outer wall is same Shaft clip is equipped with annular connecting plate (13c), and coaxial sleeve is equipped with the jet stream side of outer nozzle and outer nozzle at annular connecting plate (13c) outer rim To in the same direction each other with the jet direction of inner nozzle；Constitute outer nozzle straight tube body (13d), constitute outer nozzle cone tube (13e), What the outer tube wall and annular connecting plate (13c) of inner nozzle were enclosed outer nozzle jointly mixes function for realizing air water medicine three The lumen of energy, and the outlet end of cone cell necking section (13b) is located at the pipe for realizing air water medicine three-phase mixed function of outer nozzle It is intracavitary；On annular connecting plate (13c) through setting air intake duct (13f) to be connected to external gas medicine source and outer nozzle for realizing The lumen of air water medicine three-phase mixed function.

4. it is according to claim 1 or 2 it is a kind of have ore pulp from driving and the floatation equipment of self-priming airway dysfunction, feature exists In: the upper driving wheel (22) is the power turbine construction for having the blade of scroll；The blade of the above driving wheel (22) it is remote One end from upper driving wheel (22) wheel shaft is distal end, the friendship of the blade of the fluidic paths and upper driving wheel (22) of fluid jet nozzle (13) The far-end of the relatively close blade of point.

5. it is according to claim 1 or 2 it is a kind of have ore pulp from driving and the floatation equipment of self-priming airway dysfunction, feature exists In: the high-pressure chamber include from top to bottom be arranged pass sequentially through the affixed blind flange of flange (25a), up-thin-low-thick loudspeaker The upper conical cylinder (25b) of mouth shape and upper coarse and lower fine funnelform inferior pyramidal cylinder (25c), the hopper base of inferior pyramidal cylinder (25c) End constitutes flange cooperation between the feed end of discharge barrel (24) again；Barrier (23) of sizing mixing is attached at the funnel of inferior pyramidal cylinder (25c) At shape inner cavity.

6. it is according to claim 5 it is a kind of have ore pulp from driving and self-priming airway dysfunction floatation equipment, it is characterised in that: Upper bearing (metal) (40) are coaxially disposed on the blind flange, and the feed end of the funnel bottom end of inferior pyramidal cylinder (25c) and discharge barrel (24) Between be folded with lower bearing (50)；Shaft (21) is each passed through upper bearing (metal) (40) and lower bearing (50) and constitutes interference fit therewith.

7. it is according to claim 1 or 2 it is a kind of have ore pulp from driving and the floatation equipment of self-priming airway dysfunction, feature exists In: the lower stirring wheel (30) include intermediate sleeve (31) and the circumferentially uniformly distributed paddle around intermediate sleeve (31) axis (32), each paddle (32) shape is in the rectangular plate of plate face vertical setting, and horizontal at the suspension end of each paddle (32) Recessed fluted (32a) is so that each paddle (32) is in " recessed " shape plate body structure on the axial cross section of intermediate sleeve (31) It makes.

8. it is according to claim 1 or 2 it is a kind of have ore pulp from driving and the floatation equipment of self-priming airway dysfunction, feature exists In: the bottom end of discharge barrel (24) is provided with the diffuser of up-thin-low-thick bell mouth shape.