CN102240609B - Internal-external coal ash multistage flotation separation system - Google Patents
Internal-external coal ash multistage flotation separation system Download PDFInfo
- Publication number
- CN102240609B CN102240609B CN 201110157381 CN201110157381A CN102240609B CN 102240609 B CN102240609 B CN 102240609B CN 201110157381 CN201110157381 CN 201110157381 CN 201110157381 A CN201110157381 A CN 201110157381A CN 102240609 B CN102240609 B CN 102240609B
- Authority
- CN
- China
- Prior art keywords
- flotation
- section
- floatation separator
- air
- separation system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an internal-external coal ash multistage flotation separation system. The system comprises at least two flotation separation devices, wherein each flotation separation device comprises a barrel, an overflow collection section and a tail ash collection section; each flotation separation device also comprises an air dispersing device, a multilayer flotation plate, a distributing device and an air supply device; the first flotation separation device also comprises a material storage device which is provided with a feeding pipeline, the feeding pipeline is communicated with the distributing device, and a tail ash pipeline is also communicated with the distributing device; the second flotation separation device also comprises a material device, a tail ash pipeline is connected to the material storage device, the storing device is provided with a feeding pipeline, and the feeding pipeline is communicated with the distributing device; and the discharge hole of the first flotation separation device is communicated with the material storage device of the second flotation separation device by virtue of a discharging pipeline. Multiple air holes of the air dispersing device are arranged in a way of respectively pointing to the upward inclined directions in different angles, thus materials in the barrel form a turbulent flow and a better flotation effect is achieved.
Description
Technical field
The present invention relates to a kind of pulverized fuel ash multilevel flotation separation system that utilizes flyash to make active carbon, more particularly, the present invention relates to a kind of in-outer formula pulverized fuel ash multilevel flotation separation system.
Background technology
Flyash is one of larger 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 the development of power industry, the flyash discharge capacity of coal-burning power plant increases year by year.Contain a large amount of unburned carbon granules in 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, establish multilayer bubbling plate in 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 pulp distributer, around device circulating line, circulating line upper end and ore pulp distributing pipe connect, lower end and swirl-flow devices connect, ore pulp distributing pipe interface and feed inlet and outlet connect respectively circulating pump two ends, the high-carbon balanced overflow plate of ash and the overflow of high-carbon ash also are housed on flotation column top collects mouthful, tail ash spout hole is connected and installed with tail ash automatic control stuff box by pipeline.
Chinese patent 200920064391.8 discloses a kind of floatation column special for circulating fluidized, 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 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 mouthful, taper tail ash feeder its bottom connects tail ash tube road 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 part 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 described frame, stir the flotation motor and be connected with stirring flotation axle.Stirring flotation part H comprises: stirring vane and flotation blade, stirring vane are fixedly installed on described stirring flotation axle bottom, and the flotation blade is fixedly installed on described stirring flotation axle top.
Chinese patent 200920063583.7 discloses a kind of new equipment of producing active carbon with flyash, comprises that the former ash of flyash that connects successively advances ash bucket, electronic measuring scale, box-type ash remover, ore pulp preprocessor, first order flotation column, second level flotation column, the first thickener, the first filter, the first dryer, active carbon Special grinding, oil water separator, the 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 active carbon Special grinding also is connected with the high steam pipeline.
Chinese patent 200820046239.2 discloses a kind of flyash flotation carbon production apparatus, the flyash flotation carbon production apparatus comprises the screening module that can screen the flyash granularity, stirs module, can cleaned coal and tail ash content from flotation module, dehydration module and becomes the conveying mechanism of integral body with upper module organic connections successively.
The shortcoming of technique scheme is: usually adopt rotational flow gas or laminar flow gas to push bubble and move upward, the movement locus of fly ash grain is on screw or straight line makes progress, and flotation effect is poor; Reflecting surface is not set, and the bubble that falls and particle directly enter the outlet of tail ash, have wasted energy consumption.
Summary of the invention
For the shortcoming of prior art, the purpose of this invention is to provide a kind of fly ash grain is upwards pushed with turbulent condition and in a cyclic process by the flotation-separation system of Multi reflection.
To achieve these goals, the invention provides a kind of in-outer formula pulverized fuel ash multilevel 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 at this cylindrical shell top and is positioned at the tail ash collection section of this cylinder body bottom; 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 loose device of air of cylindrical shell, the surface of this loose 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 cylindrical shell forms turbulent flow; The surface of being somebody's turn to do loose device of air is larger, is used for bubble and particle are reflected;
Be positioned at the multilayer flotation plate of cylindrical shell, interval setting, a plurality of holes are arranged on the flotation plate; The effect of this flotation plate has two: the one, make the different material layering with different buoyancy; The 2nd, the size of the limited aperture bubble by 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 makes, 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 loose device of air;
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 loose device of air and bottom flotation plate;
Feeder, this feeder is communicated with a plurality of pores on loose device of air by the first gas pipeline; In addition, the above-mentioned floatation separator of two-stage at least also can share a feeder, and this feeder is communicated with pore on the loose device of air of each floatation separator respectively by many first gas pipelines;
Wherein, in the first floatation separator, also comprise storage device, flotation agent and treat that the particle of flotation adds in this storage device; Bottom or the bottom of this storage device are provided with charging line, and this charging line leads to its distributor; Its tail ash tube road also leads to its distributor;
In the second floatation separator, also comprise storage device, flotation agent and treat that the particle of flotation adds in this storage device; Its tail ash tube road is connected to this storage device, and bottom or the bottom of this storage device are provided with charging line, and this charging line leads to its distributor;
The discharging opening of the first floatation separator is connected by the storage device of discharge pipe with the second floatation separator.
Operation principle of the present invention 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 flyash contacts, collides with bubble, and the carbon granule that floatability is good optionally adheres to bubble, and is carried rising, realizes flotation.The poor ash content of floatability is to sinking.The carbon granule that the first floatation separator floatingly selects enters and carries out flotation for the second time in the second floatation separator, to improve phosphorus content.
The workflow of this system can be divided into two stages: the phase I in the first floatation separator and the second stage in the second floatation separator.
Wherein the phase I is (all belonging to the first floatation separator with lower component): the powdered coal ash slurry in storage device adds flotation agent, forms mixed material.The charging line of this mixed material through being positioned at storage device bottom or bottom enters distributor.Powdered coal ash in distributor and many distribution duct of mixture through being positioned at distributor bottom or bottom of flotation agent enter cylindrical shell.Feeder is by the air feed in the cylindrical shell of the pore on loose device of air, carbon granule adheres to bubble under the effect of flotation agent, and scatters floating and move upward with turbulent condition, smoothly by the hole on each layer flotation plate, fall on the flotation plate of the superiors, realize the flotation of carbon granule.The poor ash content of floatability is by the flotation of flotation plate, falls tail ash collection section.The carbon granule that floatingly selects is collected in the overflow collecting layer, and from discharging opening in discharge pipe enters the storage device of the 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 the second floatation separator with lower component): after the particle in storage device added flotation agent, many distribution duct through being positioned at distributor bottom or bottom entered cylindrical shell.Feeder is by the air feed in the cylindrical shell of the pore on loose device of air, carbon granule adheres to bubble under the effect of flotation agent, and scatters floating and move upward with turbulent condition, smoothly by 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 poor ash content of floatability is by the flotation of flotation plate, falls tail ash collection section.
In the first floatation separator, the tail ash by the flotation plate does not enter distributor through the tail ash tube road, then reenters the first floatation separator and carries out flotation; In the second floatation separator, the tail ash by the flotation plate does not enter distributor through the tail ash tube road through storage device, then reenters the second floatation separator and carries out flotation, to improve flotation efficiency.
Owing to all being provided with loose device of air in each floatation separator, a plurality of pores of loose device of air are set to point to oblique upper with different angles separately, make the material in cylindrical shell form turbulent flow, reach better flotation effect.In addition, the surface of this loose device of air also has the effect of reflection, both can strengthen the effect of turbulent flow, and bubble and particle are moved upward again through bounce-back, can effectively improve flotation efficiency.
According to a specific embodiment of the present invention, at least one floatation separator, loose device of air is that the cone of point upward is bucket-shaped, and a plurality of pores are located on its conical surface.The purpose that the bucket-shaped loose device of air of this cone is set is: to more angle reflection, its reflecting effect is better than plane reflection to the bubble that 1, is combined with carbon granule by the bucket-shaped loose device of air of this cone; 2, loose 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 loose device of air reflection, thereby the effect of having aggravated turbulent motion has improved flotation efficiency.Due in the present invention, the gas that upwards blows is turbulent condition, and 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 embodiment of the present invention, in order to reach better reflecting effect, the cone bucket angle of the bucket-shaped loose device of air of this cone is 60 °-150 ° (cone bucket angle was the angle between the cross section of axle and two intersections of boring the bucket surface).It specifically can select different cone bucket angles according to different materials, adopts the cone bucket angle of 90 ° as CFB flyash.
According to another embodiment of the present invention, in at least one floatation separator, cylindrical shell comprises superposed the 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 used for collecting lower than the top of the first flotation section the particle that overflows from the flotation section.For example, the overflow collection section can be hydrostatic column porose on 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 the divergent cone section as transitional region between the first flotation section and described the second flotation section, 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.By 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: the turbulent motion effect of 1, aggravating bubble by reflection; 2, avoid bubble along the top from cylinder wall to floatation separator and make the spillwag chute at top smooth not.
According to another embodiment of the present invention, at least one floatation separator, feeder is connected with the one or more the second gas pipelines, and the second gas pipeline leads in distributor or is connected to distribution duct.For example this second gas pipeline can be one, leads in distributor; Also can be many, be connected respectively to every distribution duct.In addition, whole system can only arrange a feeder, and this feeder delivers gas to the loose device of air of reflection and the distributor of floatation separators at different levels by different pipelines.Like this, can accelerate to enter cylindrical shell by distribution duct by the fly ash grain that gas-powered is positioned at distributor, and then improve the efficient of flotation.Drive with respect to the negative pressure that produces with Venturi tube in prior art the technical scheme that the material in distributor flows downward, both can reduce energy consumption by gas pipeline conveying high-pressure gas, again can be according to what and viscosity adjustments of gas pressure of material, and then improve Product Precision.
According to another embodiment of the present invention, at least one floatation separator, also comprise the physical separation means that is positioned on barrel or loose device of air.By physical separation means is set, effectively break the combination between carbon granule and ash content, greatly improved the flotation efficiency of carbon.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 by the emission ultrasonic wave, for example, 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 embodiment of the present invention, cylindrical shell is cylinder and/or square tube.The corner of square tube can form reflection, and the distribution of the particle in cylinder and bubble is more even.
In addition, in cylindrical shell, the top of tail ash collection section can arrange filter, to slow down the downstream rate of material.
In addition, can be provided with the slag stock pump on each charging line, tail ash tube road, discharge pipe, so that the conveying of material.
Compared with prior art, the present invention has following beneficial effect:
1, owing to all being provided with loose device of air in each floatation separator, a plurality of pores of loose device of air are set to point to oblique upper with different angles separately, make the material in cylindrical shell form turbulent flow, reach better flotation effect;
2, the surface of loose device of air also has the effect of reflection, both can strengthen the effect of turbulent flow, and bubble and particle are moved upward again through bounce-back, can effectively improve flotation efficiency.
The present invention is described in further detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is that specific embodiments of the invention are along the structural representation of the longitudinal cross-section of its axis.
The specific embodiment
As shown in Figure 1, specific embodiments of the invention comprise the two-stage floatation separator.
Wherein, the first floatation separator comprises: storage device 1, distributor 2, the cylindrical shell 3 that vertically arranges, the loose device of air 4 of the bucket-shaped reflection of cone, multilayer flotation plate 5, feeder 6, physical separation means such as ultrasonic separation device 8, discharge pipe 7, filter 9, overflow collection section 301, tail ash collection section 305.
The cylindrical shell 3 that vertically arranges 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 cone of point upward between the first flotation section 302 and the second flotation section 304.
Tail ash collection section 305 be that the cone 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.Be provided with filter 9 between the second flotation section 304 and tail ash collection section 305.
The cone that loose device of air 4 is point upward is bucket-shaped, and its cone 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, cone bucket-shaped tail ash collection section.Loose device of air 4 is provided with a plurality of ultrasonic separation means 8.
Multilayer (for example two-layer) the flotation plate 5 that the interval arranges 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 loose device of air 4 of cone.
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 cone bucket-shaped loose device of air 4 and bottom flotation plate 5.Tail ash tube road 307 is connected to distributor 2.Also be provided with bypass line on tail ash tube road 307 as removing ash pipeline 311, be equipped with valve on tail ash tube road 307 and removing ash pipeline 311.According to the situation of powdered coal ash and concrete technological requirement, the tail ash can reenter by tail ash tube road 307 and carry out flotation in the first floatation separator, to reclaim carbon granule wherein; Carbon content in the tail ash is too low, discharges by removing ash pipeline 311.
Be provided with agitating device 101 in storage device 1, be used for powdered coal ash slurry and flotation agent are fully stirred.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.
Feeder 6 connects the first gas pipeline 601 and the second gas pipeline 602; Wherein, the first gas pipeline 601 is communicated with a plurality of pores 401 of cone on bucket-shaped loose device of air 4, and the second gas pipeline 602 leads to distributor 2.
The second floatation separator comprises: storage device 1 ', distributor 2 ', the cylindrical shell 3 ' that vertically arranges, the loose device of air 4 ' of the bucket-shaped reflection of cone, multilayer flotation plate 5 ', feeder 6 ', physical separation means such as ultrasonic separation device 8 ', filter 9 ', tail ash bin 10 ', overflow collection section 301 ', tail ash collection section 305 '.
The cylindrical shell 3 ' that vertically arranges 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 cone of point upward.
Overflow collection section 301 ' is positioned at the first flotation section 302 ' outside, 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 cone 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 '.Be provided with filter 9 ' between the second flotation section 304 ' and tail ash collection section 305 '.
The cone that loose device of air 4 ' is point upward is bucket-shaped, and its cone 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 cone collection section.Loose device of air 4 ' is provided with a plurality of ultrasonic separation means 8 '.
Multilayer (for example two-layer) the flotation plate 5 ' that the interval arranges 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 loose device of air 4 ' of cone.
The other end of the discharge pipe 701 of the first floatation separator connects the storage device 1 ' of the second floatation separator.Be provided with agitating device 101 ' in 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 ' by 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 circulating line 310 ' as removing ash pipeline 311 ', be equipped with valve on circulating line 310 ' and removing ash pipeline 311 '.According to concrete technological requirement, the tail ash can reenter by circulating line 310 ' and carry out flotation in the second floatation separator, to reclaim carbon granule wherein; Carbon content in the tail ash is too low, discharges by removing ash pipeline 311 '.
Within the end in tail ash tube road 307 ' is positioned at tail ash bin 10 ', it highly is positioned on top layer flotation plate, and the end in this tail ash tube road 307 ' is provided with liquid level regulation apparatus, is used for regulating the height of the end in tail ash tube road 307 ', thereby regulates the liquid level in the second floatation separator.
Feeder 6 ' connects the first gas pipeline 601 ' and the second gas pipeline 602 '; Wherein, the first gas pipeline 601 ' is communicated with a plurality of pores 401 ' of cone on bucket-shaped loose device of air 4 ', and the second gas pipeline 602 ' leads to distributor 2 '.
Although the present invention discloses as above with preferred embodiment, is not to limit scope of the invention process.Any those of ordinary skill in the art, within not breaking away from invention scope of the present invention, when doing a little improvement, namely every equal improvement of doing according to the present invention, should be invention scope of the present invention and contain.
Claims (11)
1. in one kind-outer formula pulverized fuel ash multilevel flotation separation system, this system comprises at least two floatation separators, described each floatation separator includes the cylindrical shell of vertical setting, is positioned at the overflow collection section at this cylindrical shell top and is positioned at the tail ash collection section of this cylinder body bottom; Described overflow collection section is provided with discharging opening; Described tail ash collection section is provided with the outlet of tail ash, and the outlet of described tail ash is connected with the tail ash tube road; Each floatation separator further comprises:
Be positioned at the loose device of air of described cylindrical shell, the surface of this loose device of air is provided with a plurality of pores;
Be positioned at the multilayer flotation plate of described cylindrical shell, interval setting, wherein bottom flotation plate is positioned at the top of described loose device of air;
Be positioned at the distributor of top, described overflow collection section, described distributor is the container that the bottom is provided with many distribution duct, and the end of described distribution duct is between described loose device of air and described bottom flotation plate;
Feeder, this feeder is communicated with a plurality of pores on described loose device of air by the first gas pipeline;
Wherein, the first floatation separator comprises storage device, and the bottom of this storage device is provided with charging line, and this charging line leads to the distributor of the first floatation separator; The tail ash tube road of described the first floatation separator also leads to the distributor of the first floatation separator;
The second floatation separator also comprises storage device, the tail ash tube road of the second floatation separator is connected to the storage device of the second floatation separator, the bottom of this storage device is provided with charging line, and this charging line leads to the distributor of the second floatation separator;
The discharging opening of described the first floatation separator is connected by the storage device of discharge pipe with described the second floatation separator.
2. flotation-separation system as claimed in claim 1, wherein, described distributor is the container that the bottom is provided with many distribution duct.
3. flotation-separation system as claimed in claim 1, wherein, the bottom of described storage device is provided with charging line.
4. flotation-separation system as described in one of claim 1-3, wherein, at least one described floatation separator, the cone that described loose device of air is point upward is bucket-shaped, and described a plurality of pores are located on its conical surface.
5. flotation-separation system as claimed in claim 4, wherein, the cone bucket angle of described loose device of air is 60 °-150 °.
6. flotation-separation system as described in one of claim 1-3, wherein, in at least one described floatation separator, described cylindrical shell comprises superposed the first thinner flotation section and the second thicker flotation section that is positioned at the bottom, described overflow collection section is positioned at the outside of described the first flotation section, and the bottom of described overflow collection section is lower than the top of described the first flotation section.
7. flotation-separation system as claimed in claim 6, wherein, be provided with the divergent cone section as transitional region between described the first flotation section and described the second flotation section, and this divergent cone section is positioned at the top of bottom flotation plate.
8. flotation-separation system as described in one of claim 1-3, wherein, in at least one described floatation separator, described feeder is connected with the one or more the second gas pipelines, and described the second gas pipeline leads in described distributor or is connected to described distribution duct.
9. flotation-separation system as described in one of claim 1-3, wherein, at least one described floatation separator, also comprise the physical separation means that is positioned on barrel or described loose device of air.
10. flotation-separation system as claimed in claim 9, wherein, described physical separation means is ultrasonic separation means.
11. flotation-separation system as described in one of claim 1-3, wherein, described cylindrical shell is the assembly of cylinder, square tube or cylinder and square tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110157381 CN102240609B (en) | 2011-06-10 | 2011-06-10 | Internal-external coal ash multistage flotation separation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110157381 CN102240609B (en) | 2011-06-10 | 2011-06-10 | Internal-external coal ash multistage flotation separation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102240609A CN102240609A (en) | 2011-11-16 |
| CN102240609B true CN102240609B (en) | 2013-06-12 |
Family
ID=44958965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110157381 Expired - Fee Related CN102240609B (en) | 2011-06-10 | 2011-06-10 | Internal-external coal ash multistage flotation separation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102240609B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6960294B2 (en) * | 2001-06-12 | 2005-11-01 | Hydrotreat, Inc. | Apparatus for the separation of solids from liquids by dissolved gas floatation |
| CN1962074A (en) * | 2006-11-25 | 2007-05-16 | 中国矿业大学 | Column type short-stage tungseten crude grading process and equipment |
| CN101284257A (en) * | 2008-06-13 | 2008-10-15 | 湖南省电力粉煤灰开发有限公司 | Flotation pillar special for fly ash |
| CN101306398A (en) * | 2007-05-15 | 2008-11-19 | 上海大屯能源股份有限公司 | Microbubble swirl separation method and divice |
| CN202146823U (en) * | 2011-06-10 | 2012-02-22 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Inside-outside cascade type fly ash flotation separation system |
-
2011
- 2011-06-10 CN CN 201110157381 patent/CN102240609B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6960294B2 (en) * | 2001-06-12 | 2005-11-01 | Hydrotreat, Inc. | Apparatus for the separation of solids from liquids by dissolved gas floatation |
| CN1962074A (en) * | 2006-11-25 | 2007-05-16 | 中国矿业大学 | Column type short-stage tungseten crude grading process and equipment |
| CN101306398A (en) * | 2007-05-15 | 2008-11-19 | 上海大屯能源股份有限公司 | Microbubble swirl separation method and divice |
| CN101284257A (en) * | 2008-06-13 | 2008-10-15 | 湖南省电力粉煤灰开发有限公司 | Flotation pillar special for fly ash |
| CN202146823U (en) * | 2011-06-10 | 2012-02-22 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Inside-outside cascade type fly ash flotation separation system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102240609A (en) | 2011-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102240608B (en) | Coal ash flotation separation equipment provided with reflection cone gas dispersing device | |
| CN102240610B (en) | Self-gas supply mixed fly ash multistage flotation separation system | |
| CN202113944U (en) | Powdered coal ash floatation separating equipment with ultrasonic separating unit | |
| CN202113946U (en) | Coal ash flotation separation equipment with turbulent gas dispersing device | |
| CN202199429U (en) | Self-air supplying fly ash flotation separation system | |
| CN202151595U (en) | Inner-inner tandem type fly ash flotation separation system | |
| CN105498981B (en) | High-carbon fly ash flotation decarbonization process with foam stabilization characteristic | |
| CN202113945U (en) | Powdered coal ash floatation separating equipment provided with conical diffusion area on tower wall | |
| CN110665646A (en) | Three-product cyclone flotation device and flotation method | |
| CN102755934B (en) | Cell type multi-stage flotation separation equipment for coal ash | |
| CN202173998U (en) | Combined fly ash floatation separation system with self-air supply | |
| CN102284375B (en) | Pulverized fuel ash flotation separation equipment with physical separation device | |
| CN102284370B (en) | Turbulent current fly ash flotation process | |
| CN102284374B (en) | External-internal type pulverized fuel ash multilevel flotation separation system | |
| CN202762555U (en) | Pulverized fuel ash flotation separation device | |
| CN202151594U (en) | Outside-outside cascading coal ash flotation separation system | |
| CN202146823U (en) | Inside-outside cascade type fly ash flotation separation system | |
| CN202146824U (en) | Outer-inner cascade type fly ash flotation-separation system | |
| CN102284377B (en) | Pulverized fuel ash flotation separation equipment with divergent cone | |
| CN202199430U (en) | Internal cycle type fly ash flotation separation device | |
| CN102240609B (en) | Internal-external coal ash multistage flotation separation system | |
| CN102233302B (en) | External-external fly ash multi-stage floatation separation system | |
| CN102319638B (en) | Turbulent mixed pulverized fuel ash multi-stage floatation separation system | |
| CN102284376B (en) | Internal-internal fly ash multi-stage flotation separation system | |
| CN202169214U (en) | Turbulence mixed coal ash flotation split system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20170610 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |