CN202173998U - Combined fly ash floatation separation system with self-air supply - Google Patents
Combined fly ash floatation separation system with self-air supply Download PDFInfo
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- CN202173998U CN202173998U CN2011202326568U CN201120232656U CN202173998U CN 202173998 U CN202173998 U CN 202173998U CN 2011202326568 U CN2011202326568 U CN 2011202326568U CN 201120232656 U CN201120232656 U CN 201120232656U CN 202173998 U CN202173998 U CN 202173998U
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Abstract
The utility model discloses a combined fly ash floatation separation system with self-air supply, which comprises at least two floatation separation devices. The first floatation separation device is a self-air-supply floatation separation device, and self-air supply is realized by the aid of a venturi tube structure. The second floatation separation device is a turbulent floatation separation device comprising an air dispersing device and an air supplying device, a plurality of air holes are arranged on the surface of the air dispersing device and form different angles with the horizontal plane, and the air supplying device is communicated with the air holes on the air dispersing device through a first air pipeline. Air bubbles mixed with carbon particles are reflected to more angles through the conical air dispersing device so that reflection effect is more excellent than plane reflection. The air dispersing device jets air to drive the air bubbles to float anywhere in a cylinder turbulently so that better floatation effect can be achieved. Air bubbles which do not flow through floatation plates are reflected by the conical air dispersing device so that effect of turbulent motion is enhanced.
Description
Technical field
The utility model relates to and utilizes flyash to make active carbon, and more particularly, the utility model relates to the gas mixed flyash FLOTATION SEPARATION of a kind of confession system.
Background technology
Flyash is one of bigger industrial residue of the current discharge capacity of China, present stage China's year bed drain purge reached 3,000 ten thousand tons.Along with development of electric power industry, the flyash discharge capacity of coal-burning power plant increases year by year.Contain a large amount of unburned carbon granules in the flyash, after flotation, can be used as the raw material of making active carbon.
Chinese patent 200810031474.7 discloses a kind of flotation pillar special for fly ash, at flotation column cylindrical shell top pulp distributer is housed, and establishes multistage bubbling plate in the cylindrical shell; Multiple spot swirl-flow devices and multiple spot tail ash spout hole are established in the cylindrical shell bottom; Install the ore pulp distributing pipe around the pulp distributer, cylindrical shell peripheral device circulating line, the circulating line upper end connects with the ore pulp distributing pipe; Lower end and swirl-flow devices connect; Ore pulp distributing pipe interface is connected the circulating pump two ends respectively with feed inlet and outlet, and high-carbon balanced overflow plate of ash and high-carbon ash overflow collection mouth also are housed on flotation column top, and tail ash spout hole is connected and installed with tail ash automatic control stuff box through pipeline.
Chinese patent 200920064391.8 discloses a kind of CFBB flotation pillar special for fly ash; At the top pulp distributer is housed, in establish multistage bubbling plate, the multiple spot swirl-flow devices is established in the bottom; The bottom is connected and installed taper tail ash feeder; Install the ore pulp distributing pipe around the pulp distributer, the peripheral device circulating line, the ore pulp distributing pipe connects circulating pump; The high-carbon balanced overflow plate of ash also is housed on flotation column top and collects mouth, the tail ash tube road that its bottom of taper tail ash feeder connects is connected to tail ash automatic control stuff box.
Chinese patent 200920261379.6 discloses a kind of garbage microwave pyrolysis and has produced the stirring floatation equipment that active carbon uses; This stirring floatation equipment comprises: body part F, power section G and stirring flotation section H.Body part F comprises: stir flotation cylinder, frame, the outlet of flotation thing and mixture outlet; Power section G comprises: stir the flotation motor and stir the flotation axle; Stir the flotation motor and be fixedly installed on the described frame, stir the flotation motor and be connected with stirring flotation axle.Stirring the flotation section H comprises: stirring vane and flotation blade, stirring vane are fixedly installed on described stirring flotation axle bottom, and the flotation vanes fixed is arranged on described stirring flotation axle top.
Chinese patent 200920063583.7 discloses a kind ofly produces the new equipment of active carbon with flyash, comprises that the former ash of flyash that connects successively advances ash bucket, electronic measuring scale, box tube blower, ore pulp preprocessor, first order flotation column, second level flotation column, first thickener, first filter, first dryer, the special-purpose mill of active carbon, oil water separator, second dryer; Ore pulp preprocessor and second level flotation column also are connected with the automatic medicament feeding machine of dispersant and composite floating chemical, and the special-purpose mill of active carbon also is connected with the high steam pipeline.
Chinese patent 200820046239.2 discloses a kind of flyash flotation charcoal process units; Flyash flotation charcoal process units comprises the screening module that can screen the flyash granularity, stirs module, the flotation module that can leave cleaned coal and tail ash content, dehydration module and the conveying mechanism that become integral body with upper module organic connections successively.
The shortcoming of technique scheme is: 1, independent air jet system need be set in floatation separator, increase manufacturing cost; 2, adopt swirl-flow devices that bubble is moved upward with the eddy flow state, its flotation effect is undesirable.
Summary of the invention
To the shortcoming of prior art, the purpose of the utility model provides a kind of can the realization from air feed and the FLOTATION SEPARATION system that combines with turbulent flow type from Gas feeding.
To achieve these goals; The utility model provides the gas mixed flyash FLOTATION SEPARATION of a kind of confession system; This system comprises at least two floatation separators; Wherein first floatation separator is that it comprises from the Gas feeding floatation separator: the cylindrical shell that vertically is provided with, be positioned at this cylindrical shell top the overflow collection section, be positioned at this cylindrical shell the flotation plate, be positioned at the grey collection section of tail, distributor, the EGR of this cylindrical shell bottom; The overflow collection section is provided with discharging opening; Tail ash collection section is provided with the outlet of tail ash;
A plurality of holes are arranged on the flotation plate; The effect of this flotation plate has two: the one, make different material layering with different buoyancy; The 2nd, the size of the limited aperture bubble through the hole on the flotation plate.The aperture in the hole on the flotation plate is 0.5 centimetre-5 centimetres; The flotation plate can be metal, various plastics or other material and processes, and it specifically can be single or multiple lift, is preferably the multilayer that is provided with at interval; 2-5 layer for example; Be beneficial to the material in the cylindrical shell is divided into multilayer, make the bigger ash content of proportion sink to bottom, make the higher particle of phosphorus content float to top layer.
The overflow collection section is positioned at the outside of the epimere of cylindrical shell, and its bottom is lower than the top of cylindrical shell, is used to collect the particle that goes out from the overflow of flotation section, and the bottom of overflow collection section is provided with discharging opening; For example, the overflow collection section can be hydrostatic column porose on the base plate, and the top of cylindrical shell passes from the hole on its base plate, and like this, the particle that floatingly selects in the cylindrical shell is constantly upwards piled up, and just crosses barrel and flows in the overflow collection section; And for example, the top exterior walls of cylindrical shell is provided with spout hole or overflow pipe, and the overflow collection section is the container that is positioned at this spout hole or overflow pipe below;
Tail ash collection section is positioned at the bottom of said cylindrical shell, and it is provided with the outlet of tail ash;
Distributor is positioned at top, overflow collection section, and it is provided with the container of many distribution duct for bottom or bottom; The end of distribution duct can be positioned at the top of top layer flotation plate, also can be positioned under any one deck flotation plate;
EGR comprise circulating line and be positioned at the circulating pump on the circulating line; Circulating line is provided with the Venturi tube structure; And in circulating line side-walls corresponding to Venturi tube structure, formation negative pressure; Be provided with making-up air device; For example, this making-up air device can comprise gas supplementing opening and be connected in the blowdown pipe of this gas supplementing opening, and be provided with the cap that keeps off the rain that is used for rain cover at the end of blowdown pipe;
Second floatation separator is the turbulent flow type floatation separator, and it comprises: the cylindrical shell that vertically is provided with is positioned at the overflow collection section and the tail ash collection section that is positioned at this cylindrical shell bottom at this cylindrical shell top; The overflow collection section is provided with discharging opening; Tail ash collection section is provided with the outlet of tail ash;
Be positioned at the diffusing device of air of cylindrical shell, the surface of this diffusing device of air is bigger, is used for bubble and particle are reflected; The surface of diffusing device of air is provided with a plurality of pores, and these a plurality of pores are set to become different angles with horizontal plane separately, so that the material in the cylindrical shell forms turbulent flow;
The multilayer flotation plate that be positioned at cylindrical shell, is provided with at interval, the flotation plate here are with the flotation plate of above-mentioned first floatation separator, and wherein bottom flotation plate is positioned at the top of the device of air that looses;
Be positioned at the distributor on top, overflow collection section, distributor is the container that bottom or bottom are provided with many distribution duct, and the end of distribution duct is between diffusing device of air and bottom flotation plate;
Feeder, this feeder is communicated with a plurality of pores on the diffusing device of air through first gas pipeline;
Wherein, the discharging opening of first floatation separator is connected through the distributor of discharge pipe with second floatation separator.
The Venturi tube structure here is to manufacture the same structure of Venturi tube, for example, comprises round entrance part, tapered portion, cylindrical shape throat and flaring part.In the utility model; Thereby the polymorphic structure that utilizes Venturi tube changes the speed of this pipe fluid of flowing through produces differential pressure; And make outside gas get into circulating line through making-up air device, and along with material gets in the cylindrical shell together, thereby in cylindrical shell, form bubble; Avoided independent feeder is set, saved the manufacturing cost of equipment.
The operation principle of the utility model is: the main component of flyash is carbon granule and ash content.After adding flotation agent and/or collecting agent and/or other auxiliary agent, the particle in the flyash contacts, collides with bubble, and the carbon granule that floatability is good optionally adheres to bubble, and is carried rising, realizes flotation.The ash content of floatability difference is then to sinking.
The workflow of the utility model can be divided into two stages: phase I in first floatation separator and the second stage in second floatation separator.
Wherein the phase I is (all belonging to first floatation separator with lower component): the powdered coal ash in the distributor and the mixture of flotation agent get into cylindrical shell through many distribution duct that are positioned at distributor bottom or bottom, fall on the flotation plate of top layer.Be passed down through flotation plate layer by layer then, arrive the bottom of cylindrical shell, get into circulating line, and come back in the cylindrical shell from circulating line.Venturi tube structure in the circulating line produces negative pressure, makes outside gas get into circulating line from gas supplementing opening, and along with material gets in the cylindrical shell together, thereby in cylindrical shell, form bubble.Carbon granule adheres to bubble under the effect of flotation agent, scatter floating and move upward, and through the hole on each layer flotation plate, falls on the flotation plate of the superiors smoothly, realizes the flotation of carbon granule.The ash content of floatability difference is fallen tail ash collection section then not through the flotation of flotation plate.The carbon granule that floatingly selects is collected in the overflow collecting layer, and from discharging opening in discharge pipe gets into the distributor of second floatation separator, begun the second stage of flotation.
Second stage be that the carbon granule that floatingly selects with the phase I is as the further flotation of raw material, to make the higher particle of phosphorus content.Its flow process is (all belonging to second floatation separator with lower component): the particle in the distributor gets into cylindrical shell through many distribution duct that are positioned at distributor bottom or bottom.Feeder is through the pore air feed in cylindrical shell on the device of air that looses; Carbon granule adheres to bubble under the effect of flotation agent, and scatters floating and move upward with turbulent condition, smoothly through the hole on each layer flotation plate; Fall on the flotation plate of the superiors, realize the flotation of carbon granule.The carbon granule that floatingly selects is collected in the overflow collection section.The ash content of floatability difference is fallen tail ash collection section then not through the flotation of flotation plate.
According to an embodiment of the utility model, in first floatation separator, circulating line comprises material collection section, material pump segment, material tonifying Qi section; The sidewall of cylindrical shell connects the material collection section, and the material collection section connects the material pump segment, and the material pump segment connects material tonifying Qi section, and material tonifying Qi section is connected to the sidewall of cylindrical shell; Circulating pump is arranged at the material pump segment.Material in the cylindrical shell gets into the material collection section from cylindrical shell under the swabbing action of circulating pump, get into material tonifying Qi section through the material pump segment then, gets back in the cylindrical shell from material tonifying Qi section at last.Particularly, the tie point of material collection section and material tonifying Qi section and cylinder lateral wall all is positioned at the below of bottom flotation plate.
Material tonifying Qi section is provided with the Venturi tube structure, and making-up air device is the blowdown pipe that an end connects material tonifying Qi section, other end opening.Like this, outside gas gets into from blowdown pipe, and along with the material in the material tonifying Qi section gets into cylindrical shell, promptly material has circulated and got back to after the cylindrical shell in a week, in cylindrical shell, has brought outside gas into.
According to another embodiment of the utility model, in first floatation separator, circulating line also comprises the material diversion section, and this material diversion section can be, and is for example horizontally disposed circular, and material tonifying Qi section is connected in the material pump segment through this material diversion section.In addition, the material tonifying Qi section that is connected in this material diversion section can be many, and the material in the material pump segment is introduced into the material diversion section, gets into each bar material tonifying Qi section from the material diversion section then.
According to another embodiment of the utility model, in second floatation separator, the awl that its diffusing device of air is a point upward is bucket-shaped, and a plurality of pores are located on its conical surface.The purpose that the bucket-shaped diffusing device of air of this awl is set is: the bubble that 1, is combined with carbon granule is reflected to more angle by the bucket-shaped diffusing device of air of this awl, and its reflecting effect is superior to plane reflection; 2, diffusing device of air is jet, and the driving bubble scatters floating in cylindrical shell with turbulent condition, reach better flotation effect; 3, the bubble that does not pass the flotation plate is bored bucket-shaped diffusing device of air reflection, thereby the effect of having aggravated turbulent motion has improved the flotation rate.In order to reach better reflecting effect, according to another embodiment of the utility model, this awl bucket angle of boring bucket-shaped diffusing device of air is 60 °-150 ° (awl bucket angle was the angle between the cross section of axle and two intersections of boring the bucket surface).It specifically can select different awl bucket angles according to different materials, adopts 90 ° awl bucket angle like CFB flyash.
Another embodiment according to the utility model; In second floatation separator; Cylindrical shell comprises superposed first thinner flotation section and the second thicker flotation section that is positioned at the bottom; The overflow collection section is positioned at the outside of the first flotation section, and the bottom of overflow collection section is lower than the top of the first flotation section, is used to collect the particle that goes out from the overflow of flotation section.For example, the overflow collection section can be hydrostatic column porose on the base plate, and the top of the first flotation section passes from the hole on its base plate, and like this, the particle that floatingly selects in the flotation section is constantly upwards piled up, and flows in the overflow collection section with regard to the barrel of crossing the flotation section; And for example, the top exterior walls of the first flotation section is provided with spout hole or overflow pipe, and the overflow collection section is the container that is positioned at this spout hole or overflow pipe below.Particularly; Be provided with divergent cone section between the first flotation section and the said second flotation section as transitional region; This divergent cone section is positioned at the top of bottom flotation plate, specifically can be between two-layer flotation plate, and for example between bottom flotation plate and the last layer flotation plate that is adjacent.Through the divergent cone section is set, make floatation separator increase reflecting surface, and then the bubble velocity that comes up from the below is slowed down and adjust its direction of motion, the advantage of doing like this is: 1, the turbulent motion effect through reflection aggravation bubble; 2, avoid bubble along cylinder wall to the top of floatation separator and make the spillwag chute at top smooth inadequately.
Another embodiment according to the utility model; In second floatation separator; Feeder is connected with one or more the second gas pipelines, and second gas pipeline leads in the distributor of second floatation separator or is connected to the distribution duct of second floatation separator.For example this second gas pipeline can be one, leads in the distributor; Also can be many, be connected respectively to every distribution duct.
According to another embodiment of the utility model, in each floatation separator, tail ash collection section is that the awl of pointed end is bucket-shaped, and the outlet of tail ash is positioned at the place, tip of its bottom.The outlet of tail ash connects the tail ash tube road, and for example, the height of the end in this tail ash tube road is positioned on the top layer flotation plate.Further, the end in tail ash tube road is provided with the liquid level regulation apparatus of regulating liquid level in the floatation separator, and this liquid level regulation apparatus specifically can comprise:
Be inserted in the tubule in the tail ash tube road, the external diameter of this tubule is consistent with the internal diameter in tail ash tube road, and the sidewall on this tubule top is provided with a plurality of holes;
Be connected in tubule and also can adjust the screw mandrel of tubule height.Wherein, screw mandrel can be fixedly connected on the sidewall or its capping of tubule.
Tail ash in the tail ash tube road goes out from the orifice flow on the tubule sidewall, through regulating the height in hole on the tubule sidewall, can regulate the liquid level in the floatation separator.Particularly, screw mandrel is provided with swing handle, through the rotation swing handle screw mandrel is rotated, and moves up and down thereby drive the tubule that is inserted in the tail ash tube road.
According to another embodiment of the utility model, in each floatation separator, also comprise the tail ash bin, the tail ash bin is positioned at the end in tail ash tube road, and is enclosed within outside the tail ash tube road, and the bottom or the bottom of tail ash bin have ash discharging hole.
Another embodiment according to the utility model; First floatation separator also comprises storage device; Flotation agent and treat that the particle of flotation adds in this storage device, the bottom or the bottom of storage device are provided with charging line, and this charging line leads to the distributor of first floatation separator.
According to another embodiment of the utility model, cylindrical shell is cylinder or side's tube.The corner of side's tube can form reflection, and the particle in the cylinder and the more even distribution of bubble.In addition, the top of tail ash collection section can be provided with filter in the cylindrical shell, to slow down the downstream rate of material.
According to another embodiment of the utility model, each floatation separator also can comprise the ultrasonic separation means that is positioned on the barrel.Through ultrasonic separation means is set, break combining between carbon granule and the ash content effectively, improved the flotation rate of carbon greatly.This ultrasonic separation means improves peeling off of carbon granule and ash content through the emission ultrasonic wave, for example, forms granularity and reaches the ultra-fine carbon granule of 10,000 purposes.Particularly, this ultrasonic separation means comprises ultrasonic transmitter and supporting servicing unit.
In addition, first floatation separator also can be provided with power-actuated feeder, and so that the outer air feed beyond air feed to be provided, for example, this feeder can comprise air blast and be connected in the air duct in the floatation separator that leads to of this air blast.
First floatation separator of the utility model can have one or more, for example 3-5; Second floatation separator can have one; The discharging opening of a plurality of first floatation separators all is connected through the distributor of discharge pipe with second floatation separator; Be that the float product of a plurality of first floatation separators gets into second floatation separator and carries out flotation once more, to improve the phosphorus content of final float product.
Compared with prior art, the utlity model has following beneficial effect:
Thereby 1, utilize the polymorphic structure of Venturi tube that the speed of this pipe fluid of flowing through is changed and produce differential pressure; And make outside gas get into circulating line through making-up air device; And along with material gets in the cylindrical shell together; Thereby in cylindrical shell, form bubble, avoided independent feeder is set, saved the manufacturing cost of equipment;
2, the bubble that is combined with carbon granule is bored bucket-shaped diffusing device of air and is reflected to more angle, and its reflecting effect is superior to plane reflection; The device of air that looses is jet, and the driving bubble scatters floating in cylindrical shell with turbulent condition, reach better flotation effect; Do not pass the bubble of flotation plate and bored bucket-shaped diffusing device of air reflection, thus the effect of having aggravated turbulent motion.
Below in conjunction with accompanying drawing the utility model is done further to specify.
Description of drawings
Fig. 1 is the structural representation of the embodiment 1 of the utility model;
Fig. 2 is the structural representation of the liquid level regulation apparatus among the embodiment 1 of the utility model;
Fig. 3 is the structural representation of the embodiment 2 of the utility model;
Fig. 4 is the structural representation of the embodiment 3 of the utility model.
The specific embodiment
Embodiment 1
As shown in Figure 1, the embodiment 1 of the utility model comprises two floatation separators.
Wherein, First floatation separator is that it comprises from the Gas feeding floatation separator: storage device 8, distributor 1, the cylindrical shell 2 that vertically is provided with, overflow collection section 3, tail ash collection section 4, multilayer flotation plate 5, EGR 6, tail ash bin 7, liquid level regulation apparatus 9.
Wherein, be provided with agitating device 801 in the storage device 8, be used for powdered coal ash slurry and flotation agent are fully stirred.The bottom of storage device 8 is provided with charging line 802, and charging line 802 is provided with slag stock pump 803, and this charging line 802 leads to distributor 1.
Be provided with the multilayer flotation plate 5 (for example 3 layers) that is provided with at interval in the cylindrical shell 2.
Tail ash collection section 4 is positioned at cylindrical shell 2 bottoms, and it be that the awl of pointed end is bucket-shaped, and the place, tip of its bottom is provided with the tail ash and exports 401.Tail ash outlet 401 connects tail ash tube road 402, and the height of the end in this tail ash tube road 402 is positioned on the top layer flotation plate 5, with the liquid level in the adjustment floatation separator.The end in tail ash tube road 402 is provided with liquid level regulation apparatus 9 (as shown in Figure 2); Liquid level regulation apparatus 9 comprises tubule 901, the capping 903 that is fixedly connected on tubule 901 tops that is inserted in the tail ash tube road 402, the screw mandrel 904 that is fixedly connected on capping 903 tops; Wherein the external diameter of tubule 901 is consistent with the internal diameter in tail ash tube road 402, and the sidewall on tubule 901 tops is provided with a plurality of slotted holes 902; Screw mandrel 904 is provided with swing handle 905, through rotating swing handle 905 screw mandrel 904 is rotated, and moves up and down thereby drive the tubules 901 that are inserted in the tail ash tube road 402, regulates the liquid level in the cylindrical shell 2 through the height of regulating the grey slotted hole 902 that flows out of tail.
Tail ash bin 7 is positioned at the end in tail ash tube road 402, and is enclosed within outside the tail ash tube road 402, and the bottom of tail ash bin 7 has ash discharging hole 701.
Distributor 1 is provided with the container of many (for example 4) distribution duct 103 for the bottom, and it is positioned at 3 tops, overflow collection section, and the end of distribution duct 103 is positioned at the top of top layer flotation plate 5; Distributor 2 is provided with charging aperture 102, and the other end of charging line 802 is connected to this charging aperture 102.
Wherein, material collection section 61 comprises many (for example 4) discharging section 611 and collection sections 612.One end of these many discharging sections 611 all is connected in the sidewall of cylindrical shell 2, and tie point is positioned at the below of bottom flotation plate 5, and the other end all is connected in collection section 612.Collection section 612 is the semi-annular shape that vertically is provided with.
One end of material pump segment 62 connects collection section 612; Circulating pump 621 is positioned on this material pump segment 62.
The other end of material pump segment 62 connects material shunting section 63, and this material diversion section 63 is horizontally disposed circular.
Material tonifying Qi section 64 has many (for example 4), and an end of these many material tonifying Qi sections 64 all is connected in material pump segment 62, and the other end all is connected in the sidewall of cylindrical shell 2, and tie point is positioned at the below of bottom flotation plate 5.
Be equipped with Venturi tube structure 641 in every material tonifying Qi section 64; The sidewall of every material tonifying Qi section 64, the position that forms negative pressure corresponding to Venturi tube structure 641 are provided with making-up air device, and this making-up air device comprises gas supplementing opening and is connected in the blowdown pipe 642 of this gas supplementing opening.
Second floatation separator is the turbulent flow type floatation separator, and it comprises: distributor 2 ', the cylindrical shell 3 ' that vertically is provided with, the diffusing device of air 4 ' of the bucket-shaped reflection of awl, multilayer flotation plate 5 ', feeder 6 ', physical separation means such as ultrasonic wave separator 8 ', filter 9 ', overflow collection section 301 ', tail ash collection section 305 '.
The cylindrical shell 3 ' that vertically is provided with can be divided into three parts, is followed successively by from top to bottom: the first flotation section 302 ', divergent cone section 303 ', the second flotation section 304 '.Wherein, the first flotation section 302 ' is thinner, is provided with one deck flotation plate 5 ' in it.The second flotation section 304 ' is thicker, is provided with loose device of air 4 ' and one deck flotation plate 5 ' in it.Divergent cone section 303 ' is positioned between the first flotation section 302 ' and the second flotation section 304 ', is the bucket-shaped transitional region of the awl of point upward.
Overflow collection section 301 ' to first flotation section 302 ' is thick, be enclosed within outside the first flotation section 302 ', and the top of the first flotation section 302 ' is positioned between the top and bottom of overflow collection section 301 '; In addition, the bottom of overflow collection section 301 ' is provided with discharging opening 309 '.
Tail ash collection section 305 ' is that the awl of pointed end is bucket-shaped, and its bottom tip place is provided with tail ash outlet 306 '.Between the second flotation section 304 ' and tail ash collection section 305 ', be provided with filter 9 '.
The device of air 4 ' that looses is that the awl of point upward is bucket-shaped, and its awl bucket angle is 120 °, and its conical surface is provided with a plurality of pores 401 '; It is positioned at the second flotation section 304 ', and is positioned at 305 ' top, the bucket-shaped tail ash of awl collection section.The device of air 4 ' that looses is provided with a plurality of ultrasonic separation means 8 '.
Multilayer (for example two-layer) the flotation plate 5 ' that is provided with at interval lays respectively in the first flotation section 302 ' and the second flotation section 304 ', and wherein the flotation plate 5 ' of bottom is positioned at the top of the bucket-shaped diffusing device of air 4 ' of awl.
The discharging opening 301 of first floatation separator connects discharge pipe 302, and the other end of this discharge pipe 302 leads to the distributor 2 ' of second floatation separator.
Feeder 6 ' connects first gas pipeline 601 ' and second gas pipeline 602 '; Wherein, first gas pipeline 601 ' is communicated with a plurality of pores 401 ' of awl on the bucket-shaped diffusing device of air 4 ', and second gas pipeline 602 ' leads to distributor 2 '.
As shown in Figure 3, the embodiment 2 of the utility model is similar with embodiment 1, and its difference is: 1, first floatation separator is not provided with tail ash tube road 402, liquid level regulation apparatus, tail ash bin 7; 2, in second floatation separator; Tail ash outlet 306 ' connects tail ash tube road 307 '; The end in this tail ash tube road 307 ' is provided with tail ash bin 10 ' and liquid level regulation apparatus, and the structure and the annexation of tail ash tube road, liquid level regulation apparatus, tail ash bin are the same here, repeat no more at this.
As shown in Figure 4, the embodiment 3 of the utility model is similar with embodiment 2, and its difference is: second floatation separator comprises that also the discharge pipe 302 of storage device 1 ', the first floatation separator leads to this storage device 1 '.Be provided with agitating device 101 ' in the storage device 1 ', the bottom of storage device 1 ' is provided with charging line 102 ', and charging line 102 ' is provided with slag stock pump 103 ', and this charging line 102 ' leads to distributor 2 '.
The embodiment 4 of the utility model is similar with embodiment 1, and its difference is: 1, first floatation separator has three, and the discharging opening of these three first floatation separators all is connected to the distributor of second floatation separator through discharge pipe; 2, in first floatation separator, the bottom of distribution duct is positioned under the top layer flotation plate.
Though the utility model discloses as above with preferred embodiment, be not in order to limit the scope that the utility model is implemented.Any those of ordinary skill in the art, in the invention scope that does not break away from the utility model, when can doing a little improvement, promptly every equal improvement of doing according to the utility model, the invention scope that should be the utility model is contained.
Claims (10)
1. the gas mixed flyash FLOTATION SEPARATION of confession system, this system comprises at least two floatation separators; It is characterized in that first floatation separator is that it comprises from the Gas feeding floatation separator: the cylindrical shell that vertically is provided with, be positioned at this cylindrical shell top the overflow collection section, be positioned at this cylindrical shell the flotation plate, be positioned at the grey collection section of tail of this cylindrical shell bottom; Said overflow collection section is provided with discharging opening; Said tail ash collection section is provided with the outlet of tail ash;
Be positioned at the distributor of top, said overflow collection section, said distributor is the container that bottom or bottom are provided with many distribution duct;
EGR, it comprise circulating line and be positioned at the circulating pump on the said circulating line; Said circulating line is provided with the Venturi tube structure, and in the circulating line side-walls corresponding to Venturi tube structure, formation negative pressure, is provided with making-up air device;
Second floatation separator is the turbulent flow type floatation separator, and it comprises: the cylindrical shell that vertically is provided with is positioned at the overflow collection section and the tail ash collection section that is positioned at this cylindrical shell bottom at this cylindrical shell top; Said overflow collection section is provided with discharging opening; Said tail ash collection section is provided with the outlet of tail ash;
Be positioned at the diffusing device of air of said cylindrical shell, the surface of this diffusing device of air is provided with a plurality of pores, and these a plurality of pores are set to become different angles with horizontal plane separately;
The multilayer flotation plate that be positioned at said cylindrical shell, is provided with at interval, wherein bottom flotation plate is positioned at the top of said diffusing device of air;
Be positioned at the distributor of top, said overflow collection section, said distributor is the container that bottom or bottom are provided with many distribution duct, and the end of said distribution duct is between said diffusing device of air and said bottom flotation plate;
Feeder, this feeder is communicated with a plurality of pores on the said diffusing device of air through first gas pipeline;
Wherein, the discharging opening of said first floatation separator is connected through the distributor of discharge pipe with said second floatation separator.
2. the system of claim 1 is characterized in that, in said first floatation separator, described circulating line comprises material collection section, material pump segment and material tonifying Qi section; Wherein, the sidewall of said cylindrical shell connects said material collection section, and said material collection section connects said material pump segment, and said material pump segment connects said material tonifying Qi section, and said material tonifying Qi section is connected to the sidewall of said cylindrical shell; Said circulating pump is arranged at said material pump segment; Establish described Venturi tube structure in the said material tonifying Qi section; Described making-up air device is the blowdown pipe that an end connects said material tonifying Qi section, other end opening.
3. system as claimed in claim 2 is characterized in that said circulating line also comprises the material diversion section, and said material tonifying Qi section is connected in said material pump segment through said material diversion section.
4. system as claimed in claim 3 is characterized in that, described material tonifying Qi section has many, and the other end of described many material tonifying Qi sections is connected in said material diversion section.
5. system as claimed in claim 2 is characterized in that, the tie point of said material collection section and said material tonifying Qi section and said cylinder lateral wall all is positioned at the below of bottom flotation plate.
6. the system of claim 1 is characterized in that, in said second floatation separator, the awl that said diffusing device of air is a point upward is bucket-shaped, and said a plurality of pores are located on its conical surface.
7. the system of claim 1; It is characterized in that; In said second floatation separator, said cylindrical shell comprises superposed first thinner flotation section and the second thicker flotation section that is positioned at the bottom, and said overflow collection section is positioned at the outside of the said first flotation section.
8. system as claimed in claim 7 is characterized in that, in said second floatation separator, is provided with the divergent cone section as transitional region between said first flotation section and the said second flotation section, and this divergent cone section is positioned at the top of bottom flotation plate.
9. the system of claim 1; It is characterized in that; In said second floatation separator; Said feeder is connected with one or more the second gas pipelines, and said second gas pipeline leads in the distributor of said second floatation separator or is connected to the distribution duct of said second floatation separator.
10. the system of claim 1 is characterized in that, each said floatation separator also comprises the barrel that is positioned at said floatation separator or the ultrasonic separation means on the said diffusing device of air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202326568U CN202173998U (en) | 2011-07-04 | 2011-07-04 | Combined fly ash floatation separation system with self-air supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202326568U CN202173998U (en) | 2011-07-04 | 2011-07-04 | Combined fly ash floatation separation system with self-air supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202173998U true CN202173998U (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202326568U Withdrawn - After Issue CN202173998U (en) | 2011-07-04 | 2011-07-04 | Combined fly ash floatation separation system with self-air supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202173998U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240610A (en) * | 2011-07-04 | 2011-11-16 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Self-gas supply mixed fly ash multistage flotation separation system |
| CN110787915A (en) * | 2018-08-01 | 2020-02-14 | 奥图泰(芬兰)公司 | Flotation system, flotation line and use thereof |
| GB2610536A (en) * | 2021-10-26 | 2023-03-08 | Univ Jiangsu | Multichannel Venturi-tube hydrodynamic cavitation generating device |
-
2011
- 2011-07-04 CN CN2011202326568U patent/CN202173998U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240610A (en) * | 2011-07-04 | 2011-11-16 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Self-gas supply mixed fly ash multistage flotation separation system |
| CN102240610B (en) * | 2011-07-04 | 2013-03-06 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Self-gas supply mixed fly ash multistage flotation separation system |
| CN110787915A (en) * | 2018-08-01 | 2020-02-14 | 奥图泰(芬兰)公司 | Flotation system, flotation line and use thereof |
| GB2610536A (en) * | 2021-10-26 | 2023-03-08 | Univ Jiangsu | Multichannel Venturi-tube hydrodynamic cavitation generating device |
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