CN202151594U - Outside-outside cascading coal ash flotation separation system - Google Patents
Outside-outside cascading coal ash flotation separation system Download PDFInfo
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- CN202151594U CN202151594U CN2011201970971U CN201120197097U CN202151594U CN 202151594 U CN202151594 U CN 202151594U CN 2011201970971 U CN2011201970971 U CN 2011201970971U CN 201120197097 U CN201120197097 U CN 201120197097U CN 202151594 U CN202151594 U CN 202151594U
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Abstract
The utility model discloses an outside-outside cascading coal ash flotation separation system, which comprises at least two flotation separation devices. Each flotation separation system comprises a barrel, an overflow collecting segment, a tail ash collecting section, an air dispersing device, flotation plates, a distributing device, an air feed device and a storing device. A discharge hole of a first flotation separation device is communicated with the storing device of a second flotation separation device through a discharging pipe. The outside-outside cascading coal ash flotation separation system enables air wafted upward to maintain a state of turbulent flow and thus realizes long contact time and full contact between carbon particles and air bubbles and enables coal ash particles to be crashed into the carbon particles and ash content particles with higher probability, thereby having better flotation effect and higher flotation efficiency.
Description
Technical field
The utility model relates to and utilizes flyash to make active carbon, more particularly, the utility model relate to a kind of outer-outer tandem type flyash FLOTATION SEPARATION 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 multilayer 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 multilayer 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: adopt rotational flow gas or laminar flow gas to push bubble usually and move upward, the movement locus of fly ash grain is on the screw or straight line makes progress, and flotation effect is poor; Reflecting surface is not set, and bubble that falls and particle directly get into the outlet of tail ash, have wasted energy consumption.
Summary of the invention
To the shortcoming of prior art, the purpose of the utility model provide a kind of fly ash grain is upwards pushed with turbulent condition and in floatation process by the FLOTATION SEPARATION system of reflection repeatedly.
To achieve these goals; The utility model provide a kind of outer-outer tandem type flyash FLOTATION SEPARATION system; This system comprises at least two floatation separators; Each floatation separator includes the cylindrical shell of vertical setting, 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; Each floatation separator further comprises:
Be positioned at the diffusing device of air of 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 point to oblique upper with different angles separately, so that the material in the cylindrical shell forms turbulent flow; The surface of being somebody's turn to do the device of air that looses is bigger, is used for bubble and particle are reflected;
The multilayer flotation plate that be positioned at cylindrical shell, is provided with at interval has a plurality of holes 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, and the flotation plate can be metal, various plastics or other material and processes, and it specifically can be single or multiple lift, 2-5 layer for example, and wherein bottom flotation plate is positioned at the top of the device of air that looses;
Be positioned at the distributor of top, overflow collection section, this 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; In addition, the above-mentioned floatation separator of two-stage at least also can a shared feeder, this feeder through many first gas pipelines respectively with the diffusing device of air of each floatation separator on pore be communicated with;
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 distributor;
Wherein, storage device is separately also led in the tail ash outlet separately of each floatation separator; The discharging opening of first floatation separator is connected through the storage device of discharge pipe with second floatation separator.
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 carbon granule that first floatation separator floatingly selects gets into and carries out the flotation second time in second floatation separator, to improve phosphorus content.
The workflow of this system 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 slurry in storage device adds flotation agent, forms mixed material.This mixed material gets into distributor through the charging line that is positioned at storage device bottom or bottom.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.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 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 storage device 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 and phase I are similar, are specially (all belonging to second floatation separator with lower component): after the particle in the storage device adds flotation agent, get 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.
Owing to all be provided with diffusing device of air in each floatation separator, a plurality of pores of the device of air that looses are set to point to oblique upper with different angles separately, make the material in the cylindrical shell form turbulent flow, reach better flotation effect.In addition, the surface of this diffusing device of air also has the effect of reflection, both can strengthen the effect of turbulent flow, and bubble and particle are moved upward through bounce-back again, can improve flotation efficiency effectively.
According to a specific embodiment of the utility model, at least one floatation separator, diffusing device of air is that the awl of 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 flotation efficiency.Because in the utility model, the gas that upwards blows is turbulent condition, the time of contact of carbon granule and bubble is long; Contact more abundant; The probability that fly ash grain is broken for carbon granule and ash particles increases greatly, thereby makes flotation effect better, and flotation efficiency is higher.According to another specific embodiment of the utility model, in order to reach better reflecting effect, 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 specific embodiment according to the utility model; In at least one 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.
According to another specific embodiment of the utility model, at least one floatation separator, feeder is connected with one or more the second gas pipelines, and second gas pipeline leads in the distributor or is connected to distribution duct.For example this second gas pipeline can be one, leads in the distributor; Also can be many, be connected respectively to every distribution duct.In addition, whole system can only be provided with a feeder, and this feeder delivers gas to the diffusing device of air of reflection and the distributor of floatation separators at different levels through different pipelines.Like this, can quicken to get into cylindrical shell through the fly ash grain that gas-powered is positioned at distributor, and then improve the efficient of flotation through distribution duct.Drive the technical scheme that the material in the distributor flows downward with respect to the negative pressure that produces with Venturi tube in the prior art; Carry gases at high pressure both can cut down the consumption of energy through gas pipeline; Again can be according to what and viscosity adjustments of gas pressure of material, and then improve the product precision.
According to another specific embodiment of the utility model, at least one floatation separator, also comprise the physical separation means that is positioned on barrel or the diffusing device of air.Through physical separation means is set, break combining between carbon granule and the ash content effectively, improved the flotation efficiency of carbon greatly.This physical separation means specifically can be ultrasonic separation means or ultrasonic broken in bulk putting, and improves peeling off of carbon granule and ash content through the emission ultrasonic wave, forms granularity and reaches the ultra-fine carbon granule of 10,000 purposes.Particularly, this ultrasonic separation means or ultrasonic broken in bulk putting comprise ultrasonic transmitter and supporting servicing unit.
According to another specific embodiment of the utility model, in each floatation separator, the outlet of tail ash is connected with the tail ash tube road, and this tail ash tube road is connected to storage device.The effect that is provided with like this is: the tail ash through the flotation plate gets into interpolation flotation agent in the storage device, and gets into floatation separator again through distributor and carry out flotation, thereby has improved flotation efficiency.Particularly, between outlet of tail ash and the storage device tail ash bin can be set, the tail ash tube road is connected to the tail ash bin from the outlet of tail ash earlier, leads to storage device from the tail ash bin again.
According to another specific 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.
In addition, can be provided with the slag stock pump on each bar charging line, tail ash tube road, the discharge pipe, so that the conveying of material.
Compared with prior art, the utlity model has following beneficial effect:
1, owing to all be provided with diffusing device of air in each floatation separator, a plurality of pores of the device of air that looses are set to point to oblique upper with different angles separately, make the material in the cylindrical shell form turbulent flow, reach better flotation effect;
2, the surface of diffusing device of air also has the effect of reflection, both can strengthen the effect of turbulent flow, and bubble and particle are moved upward through bounce-back again, can improve flotation efficiency effectively.
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 specific embodiment of the utility model along the longitudinal cross-section of its axis.
The specific embodiment
As shown in Figure 1, the specific embodiment of the utility model comprises the two-stage floatation separator.
Wherein, first floatation separator comprises: storage device 1, 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, discharge pipe 7, filter 9, tail ash bin 10, 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 the bucket-shaped transitional region of the awl of point upward between the first flotation section 302 and the second flotation section 304.
Tail ash collection section 305 be that the awl of pointed end is bucket-shaped, and its bottom tip place is provided with tail ash outlet 306, and the tail ash exports 306 and is connected with tail ash tube road 307, and tail ash tube road 307 is provided with slag stock pump 308.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 tops, awl bucket-shaped tail ash 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.
Distributor 2 is positioned at 301 tops, overflow collection section, is provided with the container of many (for example 8) distribution duct 201 for the bottom.The end of distribution duct 201 is within the second flotation section 304, between awl bucket-shaped diffusing device of air 4 and the bottom flotation plate 5.
Be provided with agitating device 101 in the storage device 1, be used for powdered coal ash slurry and flotation agent are fully stirred.Tail ash tube road 307 is connected to tail ash bin 10 from tail ash outlet 306, and tail ash bin 10 is connected to storage device 1 through circulating line 310.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.
In addition, also be provided with bypass line on the circulating line 310, be equipped with valve on circulating line 310 and the removing ash pipeline 311 as removing ash pipeline 311.According to powdered coal ash and technological requirement, the tail ash can get into again through circulating line 310 and carry out flotation in first floatation separator, to reclaim carbon granule wherein; Carbon content in the tail ash is low excessively, then discharges through removing ash pipeline 311.
The end in tail ash tube road 307 is positioned within the tail ash bin 10; It highly is positioned on the top layer flotation plate; And the end in this tail ash tube road 307 is provided with liquid level regulation apparatus, is used to regulate the height of the end in tail ash tube road 307, thereby regulates the liquid level in first 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.
Second floatation separator comprises: storage device 1 ', 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 ', tail ash bin 10 ', 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 ' is positioned at the outside of 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 ' be that the awl of pointed end is bucket-shaped, and its bottom tip place is provided with tail ash outlet 306 ', and the tail ash exports 306 ' and is connected with tail ash tube road 307 ', and tail ash tube road 307 ' is provided with slag stock pump 308 '.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 other end of the discharge pipe 701 of first floatation separator connects the storage device 1 ' of second floatation separator.Be provided with agitating device 101 ' in the storage device 1 ', be used for powdered coal ash slurry and flotation agent are fully stirred.Tail ash tube road 307 ' is connected to tail ash bin 10 ' from tail ash outlet 306 ', and tail ash bin 10 ' is connected to storage device 1 ' through circulating line 310 '; 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 '.
In addition, also be provided with bypass line on the circulating line 310 ', be equipped with valve on circulating line 310 ' and the removing ash pipeline 311 ' as removing ash pipeline 311 '.According to concrete technological requirement, the tail ash can get into again through circulating line 310 ' and carry out flotation in second floatation separator, to reclaim carbon granule wherein; Carbon content in the tail ash is low excessively, then discharges through removing ash pipeline 311 '.
The end in tail ash tube road 307 ' is positioned within the tail ash bin 10 '; It highly is positioned on the top layer flotation plate; And the end in this tail ash tube road 307 ' is provided with liquid level regulation apparatus, is used to regulate the height of the end in tail ash tube road 307 ', thereby regulates the liquid level in 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 '.
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. outer-outer tandem type flyash FLOTATION SEPARATION system; This system comprises at least two floatation separators; Said each floatation separator includes the cylindrical shell of vertical setting, 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; It is characterized in that each floatation separator further comprises:
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;
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;
Storage device, the bottom or the bottom of said storage device are provided with charging line, and this charging line leads to said distributor;
Wherein, storage device is separately also led in the tail ash outlet separately of each floatation separator; The discharging opening of said first floatation separator is connected through the storage device of discharge pipe with said second floatation separator.
2. FLOTATION SEPARATION as claimed in claim 1 system is characterized in that at least one said 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.
3. FLOTATION SEPARATION as claimed in claim 2 system is characterized in that the awl bucket angle of said diffusing device of air is 60 °-150 °.
4. FLOTATION SEPARATION as claimed in claim 1 system; It is characterized in that; In at least one said 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, and the bottom of said overflow collection section is lower than the top of the said first flotation section.
5. FLOTATION SEPARATION as claimed in claim 4 system is characterized in that be provided with the divergent cone section as transitional region between said first flotation section and the said second flotation section, this divergent cone section is positioned at the top of bottom flotation plate.
6. FLOTATION SEPARATION as claimed in claim 1 system; It is characterized in that; In at least one said floatation separator, said feeder is connected with one or more the second gas pipelines, and said second gas pipeline leads in the said distributor or is connected to said distribution duct.
7. FLOTATION SEPARATION as claimed in claim 1 system is characterized in that, at least one said floatation separator, also comprises the physical separation means that is positioned on barrel or the said diffusing device of air.
8. FLOTATION SEPARATION as claimed in claim 7 system is characterized in that said physical separation means is a ultrasonic separation means.
9. FLOTATION SEPARATION as claimed in claim 1 system is characterized in that, in each said floatation separator, the outlet of said tail ash is connected with the tail ash tube road, and this tail ash tube road is connected to said storage device.
10. FLOTATION SEPARATION as claimed in claim 1 system is characterized in that, said cylindrical shell is cylinder or side's tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201970971U CN202151594U (en) | 2011-06-10 | 2011-06-10 | Outside-outside cascading coal ash flotation separation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201970971U CN202151594U (en) | 2011-06-10 | 2011-06-10 | Outside-outside cascading coal ash flotation separation system |
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| CN202151594U true CN202151594U (en) | 2012-02-29 |
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| CN2011201970971U Expired - Lifetime CN202151594U (en) | 2011-06-10 | 2011-06-10 | Outside-outside cascading coal ash flotation separation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102233302A (en) * | 2011-06-10 | 2011-11-09 | 福建省龙岩龙能粉煤灰综合利用有限公司 | External-external fly ash multi-stage floatation separation system |
-
2011
- 2011-06-10 CN CN2011201970971U patent/CN202151594U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102233302A (en) * | 2011-06-10 | 2011-11-09 | 福建省龙岩龙能粉煤灰综合利用有限公司 | External-external fly ash multi-stage floatation separation system |
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