CN106178803A - A kind of remove the method for fine particle in gas phase mixture - Google Patents
A kind of remove the method for fine particle in gas phase mixture Download PDFInfo
- Publication number
- CN106178803A CN106178803A CN201610617095.0A CN201610617095A CN106178803A CN 106178803 A CN106178803 A CN 106178803A CN 201610617095 A CN201610617095 A CN 201610617095A CN 106178803 A CN106178803 A CN 106178803A
- Authority
- CN
- China
- Prior art keywords
- fine particle
- gas phase
- kinds
- removal gas
- combination
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
- B01D51/02—Amassing the particles, e.g. by flocculation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a kind of remove the method for fine particle in gas phase mixture, it is characterized in that, in gas phase mixture, add chemical substance make fine particle generation clustering phenomena, increase particle diameter or the quality of fine particle, then remove the fine particle after flocculation by separation and collection device.It is characteristic of the invention that and utilize chemical agglomeration principle that the fine particle in gaseous state system, gas-liquid mixed system and vapour-liquid mixed system is processed, the size (or quality) making fine particle increases, it is easy to remove, and flow process is simple, high efficiency, low cost, low for equipment requirements, promote the most on a large scale.
Description
Technical field
The present invention relates to a kind of remove the method for fine particle in gas phase mixture, belong to environmental protection technical field, dirty
Dye controls category, is applicable to the removing field of fine particle in air and industrial waste gas more.
Background technology
Along with global industry and the development of urbanization, environmental pollution particularly water environment pollution and atmospheric pollution are
Through becoming the subject matter that developing country faces.The existing known pollutant kind damaging atmospheric environment is various,
Wherein fine particle is that chemical composition is the most complicated, endangers one of maximum pollutant.
Data shows, in environment, fine particle is mainly derived from natural, ecological destruction and artificial extensive style is discharged.Artificial thick
Put formula discharge and also can be further divided into various fuel combustion source and mobile source.Complicated source makes the composition of fine particle also
Extremely complex, mainly comprise substantial amounts of inorganic matter, Organic substance and living substance.
Meanwhile, fine particle also has the features such as sedimentation velocity is slow, time of staying length, fed distance are remote, is to cause air
Visibility reduces, mist, the important origin cause of formation of haze weather.Along with the dynamics of China's improvement haze is gradually increased, promote Coal Clean profit
With extremely urgent, this just makes dust emission become the subject matter that current coal-burning boiler faces.Although the traditional dedusting in industry
Device category is various, but the fine particle that particle diameter is less is all existed that 20%-40% do not waits penetrate window, and arresting efficiency is many
Less than 95%, this allows for some new dedusting technologies and arises at the historic moment.Wherein, at the terminal essence with wet electrical dust precipitator as representative
Reason trapping equipment can meet the process requirement to fine particle, but cost of investment is high, floor space big and it is dirty to easily cause secondary
Dye and water resource waste.Therefore, develop a kind of technique simple, efficiently, the removal gas phase mixture of low cost, easy large-scale promotion
The method of middle fine particle is particularly important.
Summary of the invention
The present invention proposes a kind of to remove the method for fine particle in gas phase mixture, by the system containing fine particle
Middle interpolation chemical substance, makes the size (or quality) of fine particle increase, so improve follow-up conventional equipment removing difficulty and
Removal efficiency, start a kind of efficiently, low cost, simple, the technology reducing fine particle discharge easily promoted.
In order to solve the problems referred to above, the present invention adopts the following technical scheme that
(1) a kind of remove the method for fine particle in gas phase mixture, in flue gas, add chemical substance make fine particle
There is clustering phenomena, increase particle diameter or the quality of fine particle, then remove the fine grained after flocculation by separation and collection device
Thing.
(2) according to the method for fine particle in the removal gas phase mixture described in (1), described gas phase mixture is continuous
The homogeneous mixture of flowing or heterogeneous mixture；And containing one of following material or the combination of the most any two kinds: gas, solid
Body, liquid, steam, dust, inorganic matter, Organic substance, particle.
(3) according to the method for fine particle, described chemical substance bag in the removal gas phase mixture described in (1) or (2)
Include flocculant, also include additive and or flocculation aid.
(4) according to the method for fine particle in the removal gas phase mixture described in (1)-(3), described fine particle contains
One of following material or the combination of the most any two kinds: flyash, calcium sulphate powders, lime powder, SiO 2 powder, two
Titanium dioxide powder, calcium carbonate powder, other powdery type material, secondary aerosol species.
(5) according to method described in the method for fine particle in the removal gas phase mixture described in any one of (1)-(4) at gas
State system, gas-liquid mixing system or vapour-liquid mixed system are carried out；Before contacting with flocculant, under gas phase mixture state can be
One of row or the combination of the most any two kinds: absolutely dry state, air dry state, moisture state, solution state, wet saturation,
Dry saturation.
(6) according to the method for fine particle, described flocculant in the removal gas phase mixture described in any one of (1)-(5)
Containing one of following material or the combination of the most any two kinds: polyacrylamide, chitosan, kieselguhr, modified starch, modified fibre
Dimension element, aluminium polychlorid, PAFS, poly-ferric chloride, xanthan gum, sodium alginate.
(7) according to the method for fine particle, described additive in the removal gas phase mixture described in any one of (1)-(6)
Containing one of following material or the combination of the most any two kinds: stearic acid, dodecylbenzene sodium sulfonate, quaternary ammonium compounds is sweet
Dish alkaline surfactant.
(8) according to the method for fine particle, described flocculation in the removal gas phase mixture described in any one of (1)-(7)
Agent, additive, flocculation aid need to carry out dissolving or diluting before using, and solvent is aqueous phase or organic facies.
(9) according to the method for fine particle, described flocculation aid in the removal gas phase mixture described in any one of (1)-(8)
Containing one of following material or the combination of the most any two kinds: quick lime, Calx, activated silicic acid.
(10) according to the method for fine particle, described flyash in the removal gas phase mixture described in any one of (1)-(9)
Catch, for the flue gas after coal combustion is received, the particulate matter got off, be the mixture of crystalline mineral and amorphous mineral, by crystal, glass
Body and the mixture of a small amount of unburned charcoal composition, containing one of mullite, quartz, glass phase or the crystalline phase knot of the most any two kinds
Structure, can be CFBB flyash, coal-powder boiler flyash；And containing one of following chemical substance or the most any two kinds
Combination: SiO2、Al2O3、Fe2O3、CaO、MgO、SO3、TiO2。
(11) according to the method for fine particle, described flyash in the removal gas phase mixture described in any one of (1)-(10)
In the content range of each chemical substance include one of the following or combination of the most any two kinds: SiO2≤ 60%；Al2O3≤ 40%,
Fe2O3≤ 40%, CaO≤40%, MgO≤20%, SO3≤ 20%, TiO2≤ 20%.
(12) according to the method for fine particle, described polypropylene in the removal gas phase mixture described in any one of (1)-(11)
Amide can be divided into anion-polyacrylamide, non-ionic polyacrylamide, cationic-type polyacrylamide, its chemical general formula
For:
(13) according to the method for fine particle, described chitosan in the removal gas phase mixture described in any one of (1)-(12)
Its chemical general formula is:
(14) according to the method for fine particle, described flocculation in the removal gas phase mixture described in any one of (1)-(13)
Agent has a kind of or combination of the most any two kinds in following character: flocculating agent molecule amount is 100-1800 ten thousand, ion degree is
0%-80%.
(15) according to the method for fine particle, described flocculation in the removal gas phase mixture described in any one of (1)-(14)
Agent solution has an a kind of or combination of the most any two kinds in following character: concentration be 0.01-1000mg/L, pH scope be 5-
12。
(16) according to the method for fine particle, described flocculation in the removal gas phase mixture described in any one of (1)-(15)
The system temperature that agent and flocculant solution use is 1-200 DEG C.
(17) according to the method for fine particle, described interpolation in the removal gas phase mixture described in any one of (1)-(16)
Agent solution concentration is 0.01-1000mg/L.
(18) according to the method for fine particle in the removal gas phase mixture described in any one of (1)-(17), described helping is solidifying
Agent solution concentration is 0.01-1000mg/L.
(19) according to the method for fine particle, described aqueous phase in the removal gas phase mixture described in any one of (1)-(18)
System is the combination of one of tap water, pure water, production waste water or the most any two kinds or the combination of the most any two kinds；Aqueous phase body
System meets one of following condition or the combination of the most any two kinds: pH scope is 2-10, SS≤150mg/L, TDS≤15000mg/
L, COD≤300mg/L.
(20) according to the method for fine particle in the removal gas phase mixture described in any one of (1)-(19), described is organic
Solvent contains one of following material or the combination of the most any two kinds: organic amine solution, alcoholic solution, oxolane.
(21) according to the method for fine particle in the removal gas phase mixture described in any one of (1)-(20), described increase is thin
Time needed for the particle diameter of particulate matter and quality is 0.01-1000s.
(22) according to the method for fine particle, described gas-liquid in the removal gas phase mixture described in any one of (1)-(21)
In mixed system, the particle size range of fine particulates is 0.01-200 μm.
(23) according to the method for fine particle in the removal gas phase mixture described in any one of (1)-(22), in described flue gas
Pollutant include one of following material or the combination of the most any two kinds: fine particle, SO2、SO3、NOX、H2S、CO2、NH3。
(24) according to the method for fine particle in the removal gas phase mixture described in any one of (1)-(23), in described flue gas
Pollutant in the content range (flue gas is 273K in temperature, when pressure is 101325Pa) in normal conditions of each chemical substance
Meet one of following condition or the combination of the most any two kinds: fine particle≤10000mg/Nm3、SO2≤2000mg/m3、SO3
≤mg/m3、NOX≤1500mg/m3、H2S≤300mg/m3、CO2≤500mg/m3、NH3≤500mg/m3。
(25) according to the method for fine particle, described gaseous state in the removal gas phase mixture described in any one of (1)-(24)
In system, the concentration range of fine particulates is 0.01-10000mg/Nm3。
(26) according to the method for fine particle in gas phase mixture of removing described in any one of (1)-(25), flocculant, add
Add agent, flocculation aid incorporation way for being quantitatively adding method or atomizing spray method.
(27) according to the method for fine particle in the removal gas phase mixture described in any one of (1)-(26), described is trickle
It can be dynamic turbidimetry method that particle size and quality become the detection method of big required time.
(28) according to the method for fine particle in the removal gas phase mixture described in any one of (1)-(27), described is quantitative
The liquid medicine range of flow of addition method is every 1Nm3Gas adds 0.01-500mL/min；The medicament of described atomizing spray method
Solution range is every 1Nm3Gas adds 0.01-100L/min.
(29) according to the method for fine particle, described atomization in the removal gas phase mixture described in any one of (1)-(28)
Spray process possesses one of following process conditions or the combination of the most any two kinds: spray angles is that relative gas phase mixture flows to 0-
180 degree, spray number of times be 1-20 time.
(30) according to the method for fine particle in the removal gas phase mixture described in any one of (1)-(29), described is trickle
Particle size and quality increase refer to that particle diameter increases 2-100 times, and quality increases 2-10000 times.
(31) according to the method for fine particle in gas phase mixture of removing described in any one of (1)-(30), described trickle
It can be on-line monitoring method, off-line monitoring method or the two use that combines that grain thing particle diameter and quality become big monitoring method；Wherein from
Fine grained is dispersed in filter membrane, filter cylinder or solution medium by line detection method for methods such as employing Apparatus for Dust Content in Stack, sucking filtration, bubblings,
Take out after accumulative a period of time, analyze fine particle particle diameter and mass change by detecting instrument；On_line detection method is directly will
Detecting instrument is monitored fine particle particle diameter and mass change in being placed in system and gives real-time results；Described detection method or instrument
Including: laser particle size detection method, light scattering particle size detection method, nephelometry, PM10Impingement method, low pressure impactor (DLPI) method,
Electrostatic low pressure ram (ELPI) method.
(32) according to the method for fine particle in the removal gas phase mixture described in any one of (1)-(31), in coal-burning power plant
Before coal addition position in flue gas system can be desulfurizing tower, in desulfurizing tower, after desulfurizing tower and before degree of depth cleaner, or several position
The combination put.
(33) a kind of the method for fine particle in coal-fired plant flue gas is removed, the method described in any one of application (1)-(32)
Fine particle in removing coal-fired plant flue gas.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is schematic flow sheet of the present invention.
Detailed description of the invention
In the present invention, it is prepared for 9 kinds of flocculant respectively, as shown in table 1:
Flocculant list used by table 1
| Flocculant is numbered | Kind | Character (ion-type and molecular weight) |
| 1 | Polyacrylamide | Cation, 8,000,000 |
| 2 | Polyacrylamide | Cation, 8,000,000 |
| 3 | Polyacrylamide | Anion, 8,000,000 |
| 4 | Polyacrylamide | Anion, 13,000,000 |
| 5 | Polyacrylamide | Anion, 8,000,000 |
| 6 | Polyacrylamide | Anion, 8,000,000 |
| 7 | Polyacrylamide | Anion, 13,000,000 |
| 8 | Polyacrylamide | Anion, 13,000,000 |
| 9 | Polyacrylamide | Anion, 18,000,000 |
| 10 | Chitosan | |
| 11 | Polyacrylamide | Cation, 5,000,000 |
| 12 | Polyacrylamide | Anion, 18,000,000 |
Embodiment 1:
By the fine particle solution of No. 1 flocculant solution of a certain amount of 10mg/L and 0.2wt% (fine particle surface in
Elecrtonegativity, mean diameter DX50=2.57 μm) mix according to 20000:3, under the rotating speed of 300r/min, stir 1min, survey
Obtaining its mean diameter is 25.8 μm.
Embodiment 2:
By the fine particle solution of No. 2 flocculant solutions of a certain amount of 10mg/L and 0.2wt% (fine particle surface in
Elecrtonegativity, mean diameter DX50=2.57 μm) mix according to 20000:3, under the rotating speed of 300r/min, stir 1min, survey
Obtaining its mean diameter is 16.7 μm.
Embodiment 3:
No. 3 flocculant solutions of the 10mg/L of 100mL are mixed with the fine particle of 0.2g that (fine particle surface is negative electricity
Property, mean diameter DX50=2.57 μm), under the rotating speed of 300r/min, stir 1min, recording its mean diameter is 29.6 μm.
Embodiment 4:
No. 4 flocculant solutions of the 10mg/L of 100mL are mixed with the fine particle of 0.2g that (fine particle surface is negative electricity
Property, mean diameter DX50=2.57 μm), under the rotating speed of 300r/min, stir 1min, recording its mean diameter is 19.8 μm.
Embodiment 5:
No. 5 flocculant solutions of the 10mg/L of 100mL are mixed with the fine particle of 0.2g that (fine particle surface is negative electricity
Property, mean diameter DX50=2.57 μm), under the rotating speed of 300r/min, stir 1min, recording its mean diameter is 61.9 μm.
Embodiment 6:
No. 6 flocculant solutions of the 10mg/L of 100mL are mixed with the fine particle of 0.2g that (fine particle surface is negative electricity
Property, mean diameter DX50=2.57 μm), under the rotating speed of 300r/min, stir 1min, recording its mean diameter is 64.3 μm.
Embodiment 7:
The fine particle solution of configuration 0.2wt%, after being evenly distributed, takes intermediate layer suspension and measures turbid after standing 3min
Degree.By the fine particle solution of No. 7 flocculant solutions of a certain amount of 10mg/L Yu 0.2wt%, (fine particle surface is negative electricity
Property, mean diameter DX50=2.57 μm) mix according to 20000:3, under the rotating speed of 300r/min, stir 1min, stand
Take intermediate layer suspension after 3min and measure turbidity.Go turbidity removal rate up to 98.09%.
Embodiment 8:
(fine particle surface is elecrtonegativity to the fine particle solution of configuration 0.2wt%, mean diameter DX50=2.57 μm),
After being evenly distributed, take intermediate layer suspension after standing 3min and measure turbidity.By No. 8 flocculant solutions of a certain amount of 10mg/L
Mixing according to 20000:3 with the fine particle solution of 0.2wt%, under the rotating speed of 300r/min, stirring stirring 1min, quiet
Take intermediate layer suspension after putting 3min and measure turbidity.Turbidity removal rate is up to 96.9%.
Embodiment 9:
(fine particle surface is electropositive to the fine particle solution of configuration 0.2wt%, mean diameter DX50=5 μm), treat
After being evenly distributed, take intermediate layer suspension after standing 3min and measure turbidity.By a certain amount of 10mg/L9 flocculant solution with
The fine particle solution of 0.2wt% mixes according to 20000:3, and under the rotating speed of 300r/min, stirring stirring 1min, stands
Take intermediate layer suspension after 3min and measure turbidity.Turbidity removal rate is up to 99.5%.
Embodiment 10:
(fine particle surface is elecrtonegativity to the fine particle solution of configuration 0.2wt%, mean diameter DX50=100nm),
After being evenly distributed, take intermediate layer suspension after standing 3min and measure turbidity.By molten for No. 10 flocculant of a certain amount of 10mg/L
Liquid mixes according to 20000:3 with the fine particle solution of 0.2wt%.Stirring stirring 1min under the rotating speed of 300r/min,
Take intermediate layer suspension after standing 3min and measure turbidity.Turbidity removal rate is up to 97.5%.
Embodiment 11:
(fine particle surface is elecrtonegativity to the fine particle solution of configuration 0.5wt%, mean diameter DX50=2.57 μm),
Joining in the dynamic turbidimetry of voltage stabilization, mixing speed is 500r/min, after system again voltage stabilization, adds
Concentration is No. 1 flocculant of 3mg/L, again reaches stable state in system 4.5s.
Embodiment 12:
(fine particle surface is elecrtonegativity to the fine particle solution of configuration 0.5wt%, mean diameter DX50=2.57 μm),
Joining in the dynamic turbidimetry of voltage stabilization, mixing speed is 500r/min, after system again voltage stabilization, adds
Concentration is No. 1 flocculant of 1mg/L, again reaches stable state in system 5.5s.
Embodiment 13:
(fine particle surface is elecrtonegativity to the fine particle solution of configuration 0.5wt%, mean diameter DX50=2.57 μm),
Joining in the dynamic turbidimetry of voltage stabilization, mixing speed is 500r/min, after system again voltage stabilization, adds
Concentration is No. 11 flocculant of 3mg/L, again reaches stable state in system 6.2s.
Embodiment 14:
(fine particle surface is elecrtonegativity to the fine particle solution of configuration 0.5wt%, mean diameter DX50=2.57 μm),
Joining in the dynamic turbidimetry of voltage stabilization, mixing speed is 500r/min, after system again voltage stabilization, adds
Concentration is No. 11 flocculant of 1mg/L, again reaches stable state in system 7.6s.
Embodiment 15:
By blower fan system by temperature be 60 DEG C, dust concentration be 80mg/m3Ash-laden gas be introduced in reunion system,
Control air quantity to 25m3/ h, injects water in flocculant preparation tank, adds No. 12 flocculant, and configuration concentration is 10mg/L flocculant
Solution.Through shower nozzle, flocculant solution is sprayed in tower against air-flow by peristaltic pump and air compressor induction system, form mist
Cloud is sufficiently mixed collision with particulate matter in flue gas, is trapped by bulky grain thing through cleaner unit, finally by air-introduced machine by cigarette
Gas is discharged.After carrying out recording flocculation after collecting sample, fine particle mean diameter is 25.7 microns.
Comparative example 1:
By the fine particle solution of a certain amount of water Yu 0.2wt%, (fine particle surface is elecrtonegativity, mean diameter DX50
=2.57 μm) mix according to 20000:3, under the rotating speed of 300r/min, stir 1min, recording its mean diameter is 2.57 μ
m。
Comparative example 2:
(fine particle surface is elecrtonegativity to the fine particle solution of configuration 0.2wt%, mean diameter DX50=100nm),
After being evenly distributed, take intermediate layer suspension after standing 3min and measure turbidity.Fine particle by a certain amount of water Yu 0.2wt%
Solution mixes according to 20000:3.Under the rotating speed of 300r/min, stirring stirring 1min, takes intermediate layer after standing 3min suspended
Liquid measures turbidity.Turbidity removal rate is 0%.
Comparative example 3:
Cross blower fan system by temperature be 60 DEG C, dust concentration be 80mg/m3Ash-laden gas be introduced in reunion system, control
Air quantity processed is to 25m3/ h, injects water in flocculant preparation tank.By peristaltic pump and air compressor induction system through shower nozzle
Watery vomiting air-flow is sprayed in tower, forms mist cloud and be sufficiently mixed collision with particulate matter in flue gas, through cleaner unit, bulky grain thing is caught
Collection gets off, and is discharged by flue gas finally by air-introduced machine.After carrying out recording flocculation after collecting sample, fine particle mean diameter is
2.43 micron.
Sum up example and result be as shown in table 2:
Table 2 partial flocculation experimental result
| Numbering | Medicament kind | Result |
| Example 1 | PAMC | Mean diameter is 25.8 microns |
| Example 2 | PAMC | Mean diameter is 16.7 microns |
| Example 3 | PAMA | Mean diameter is 29.6 microns |
| Example 4 | PAMA | Mean diameter is 19.8 microns |
| Example 5 | PAMA | Mean diameter is 61.9 microns |
| Example 6 | PAMA | Mean diameter is 64.3 microns |
| Example 7 | PAMA | Turbidity removal rate is 98.1% |
| Example 8 | PAMA | Turbidity removal rate is 96.9% |
| Example 9 | PAMA | Turbidity removal rate is 99.5% |
| Example 10 | Chitosan | Turbidity removal rate is 97.5% |
| Example 11 | PAMC | Terminate in flocculation 5-8s |
| Example 12 | PAMA | Terminate in flocculation 5-8s |
| Example 13 | PAMC | Terminate in flocculation 5-8s |
| Example 14 | PAMC | Terminate in flocculation 5-8s |
| Example 15 | PAMA | Mean diameter is 25.7 microns |
| Comparative example 1 | Water | Mean diameter is 2.57 microns |
| Comparative example 2 | Water | Turbidity removal rate is 0% |
| Comparative example 3 | Water | Mean diameter is 2.43 microns |
The foregoing is only the preferred embodiment of 12 kinds of different flocculant of patent of the present invention, be not limited to this
Invention.The present invention can have various change and change, all within principle of the present invention, any amendment, the equivalent made, changes
Enter, within should be included in the protection domain of patent of the present invention.Above-described embodiment not detailed description of the invention exhaustive, also may be used
Having other embodiment, above-described embodiment is intended to indicate that the present invention, rather than limits the scope of the invention, all by this
Invention simple change and come application all fall within protection scope of the present invention.
It should be noted that " first ", " second " or similar vocabulary are not offered as any order, quality or importance,
It is used only to distinguish different technical characteristics.The qualifier " about " that combined amount uses comprises described value and content context is specified
Implication.(such as: it includes error when measuring specific quantity).
Claims (29)
1. remove the method for fine particle in gas phase mixture for one kind, it is characterised in that in gas phase mixture, add chemicals
Matter makes fine particle generation clustering phenomena, increases particle diameter or the quality of fine particle, then removes wadding by separation and collection device
Fine particle after Ning.
The method of fine particle in removal gas phase mixture the most according to claim 1, it is characterised in that described gas phase
Mixture is homogeneous mixture or the heterogeneous mixture of flowing continuously；And containing one of following material or the most any two kinds
Combination: gas, solid, liquid, particle, steam, dust, inorganic matter, Organic substance.
The method of fine particle in removal gas phase mixture the most according to claim 1, it is characterised in that described chemistry
Material includes flocculant；Also include additive and or flocculation aid.
The method of fine particle in removal gas phase mixture the most according to claim 1, it is characterised in that described thin
Grain thing contains one of following material or the combination of the most any two kinds: flyash, calcium sulphate powders, lime powder, titanium dioxide
Si powder, titania powder, calcium carbonate powder, secondary aerosol species.
The method of fine particle in removal gas phase mixture the most according to claim 1, it is characterised in that described method exists
Gaseous state system, gas-liquid mixing system or vapour-liquid mixed system are carried out；Before contacting with flocculant, gas phase mixture state can be
One of the following or combination of the most any two kinds: absolutely dry state, air dry state, moisture state, solution state, wet saturated shape
State, dry saturation.
The method of fine particle in removal gas phase mixture the most according to claim 3, it is characterised in that described flocculation
Agent and flocculation system contain one of following material or the combination of the most any two kinds: polyacrylamide, chitosan, kieselguhr, change
Property starch, modified cellulose, aluminium polychlorid, PAFS, poly-ferric chloride, xanthan gum, sodium alginate.
The method of fine particle in removal gas phase mixture the most according to claim 2, it is characterised in that described interpolation
Agent contains one of following material or the combination of the most any two kinds: stearic acid, dodecylbenzene sodium sulfonate, quaternary ammonium compounds,
Betaine type amphoteric surfactant.
The method of fine particle in removal gas phase mixture the most according to claim 3, it is characterised in that described flocculation
Agent, additive, flocculation aid need to carry out dissolving or diluting before using, and solvent is aqueous phase or organic facies.
The method of fine particle in removal gas phase mixture the most according to claim 3, it is characterised in that described helping is solidifying
Agent contains one of following material or the combination of the most any two kinds: quick lime, Calx, activated silicic acid.
The method of fine particle in removal gas phase mixture the most according to claim 4, it is characterised in that described fine coal
Ash catches, for receiving in the flue gas after coal combustion, the particulate matter got off, and is the mixture of crystalline mineral and amorphous mineral, by crystal, glass
Glass body and the mixture of a small amount of unburned charcoal composition, containing one of mullite, quartz, glass phase or or the crystalline substance of the most any two kinds
Phase structure, can be CFBB flyash, coal-powder boiler flyash；And containing one of following chemical substance or the most any
The combination of two kinds: SiO2、Al2O3、Fe2O3、CaO、MgO、SO3、TiO2。
The method of fine particle in 11. removal gas phase mixtures according to claim 10, it is characterised in that described fine coal
In ash, the content range of each chemical substance includes one of the following or combination of the most any two kinds: SiO2≤ 60%；Al2O3≤
40%, Fe2O3≤ 40%, CaO≤40%, MgO≤20%, SO3≤ 20%, TiO2≤ 20%.
The method of fine particle in 12. removal gas phase mixtures according to claim 6, it is characterised in that described poly-third
Acrylamide can be divided into anion-polyacrylamide, non-ionic polyacrylamide, cationic-type polyacrylamide, and its chemistry is logical
Formula is:
(n=10000～500000).
The method of fine particle in 13. removal gas phase mixtures according to claim 6, it is characterised in that described shell gathers
Its chemical general formula of sugar is:
(n=5000～100000).
The method of fine particle in 14. removal gas phase mixtures according to claim 3, it is characterised in that described wadding
Solidifying agent has a kind of or combination of the most any two kinds in following character: flocculating agent molecule amount is 100-1800 ten thousand, ion degree
For 0%-80%；Dissolving or after being diluted to flocculant solution, described flocculant solution has the one in following character or extremely
The combination of few any two kinds: concentration be 0.01-1000mg/L, pH scope be 5-12.
The method of fine particle in 15. removal gas phase mixtures according to claim 5, it is characterised in that described wadding
The system temperature that solidifying agent and flocculant solution use is 1-200 DEG C.
The method of fine particle in 16. removal gas phase mixtures according to claim 3, it is characterised in that described adds
Adding agent solution concentration is 0.01-1000mg/L；Described flocculation aid solution concentration is 0.01-1000mg/L.
The method of fine particle in 17. removal gas phase mixtures according to claim 8, it is characterised in that described water
Phase system is one of tap water, pure water, production waste water or the combination of the most any two kinds；Aqueous phase system meets one of following condition
Or the combination of the most any two kinds: pH scope is 2-10, SS≤150mg/L, TDS≤15000mg/L, COD≤300mg/L.
The method of fine particle in 18. removal gas phase mixtures according to claim 8, it is characterised in that described has
Machine solvent contains one of following material or the combination of the most any two kinds: organic amine solution, alcoholic solution, oxolane.
The method of fine particle in 19. removal gas phase mixtures according to claim 1, it is characterised in that described increase
Time needed for the particle diameter of fine particle and quality is 0.01-1000s.
The method of fine particle in 20. removal gas phase mixtures according to claim 5, it is characterised in that described gas
A kind of or the combination of the most any two kinds during fine particulates has following character in liquid mixture system: concentration range is
0.01-10000mg/Nm3；Particle size range is 0.01-200 μm.
The method of fine particle in 21. removal gas phase mixtures according to claim 1, it is characterised in that described flue gas
In pollutant include one of following material or the combination of the most any two kinds: fine particle, SO2、SO3、NOX、H2S、CO2、
NH3。
The method of fine particle in 22. removal gas phase mixtures according to claim 21, it is characterised in that described flue gas
In pollutant in the content range of each chemical substance (flue gas is 273K in temperature, and pressure is 101325Pa in normal conditions
Time) meet one of following condition or the combination of the most any two kinds: fine particle≤10000mg/Nm3、SO2≤2000mg/m3、
SO3≤mg/m3、NOX≤1500mg/m3、H2S≤300mg/m3、CO2≤500mg/m3、NH3≤500mg/m3。
The method of fine particle in 23. removal gas phase mixtures according to claim 3, it is characterised in that flocculant, add
Add agent, the incorporation way of flocculation aid is quantitative dripping method or atomizing spray method.
The method of fine particle in 24. removal gas phase mixtures according to claim 1, it is characterised in that described is thin
It can be dynamic turbidimetry method that microparticle thing particle diameter and quality become the detection method of big required time.
The method of fine particle in 25. removal gas phase mixtures according to claim 23, it is characterised in that described quantitatively
The liquid medicine range of flow of addition method is every 1Nm3Gas adds 0.01-500mL/min；The medicament of described atomizing spray method
Solution range is every 1Nm3Gas adds 0.01-100L/min.
The method of fine particle in 26. removal gas phase mixtures according to claim 23, it is characterised in that described atomization
Spray process possesses one of following process conditions or the combination of the most any two kinds: the spray angles that gas phase mixture flows to relatively is
0-180 degree, spray number of times are 1-20 time.
The method of fine particle in 27. removal gas phase mixtures according to claim 1, it is characterised in that it is described carefully
Microparticle thing particle diameter and quality increase refer to that particle diameter increases 1.1-100 times, and quality increases 1.1-10000 times.
The method of fine particle in 28. removal gas phase mixtures according to claim 27, it is characterised in that described trickle
It can be on-line monitoring method, off-line monitoring method or the two use that combines that particle size and quality become big monitoring method；Wherein
Fine grained is dispersed in filter membrane, filter cylinder or solution medium for using the methods such as Apparatus for Dust Content in Stack, sucking filtration, bubbling by offline inspection method
In, take out after accumulative a period of time, analyze fine particle particle diameter and mass change by detecting instrument；On_line detection method is direct
Monitor fine particle particle diameter and mass change in detecting instrument is placed in system and give real-time results；Described detection method or instrument
Device includes: laser particle size detection method, light scattering particle size detection method, nephelometry, PM10Impingement method, low pressure impactor (DLPI)
Method, electrostatic low pressure ram (ELPI) method.
29. 1 kinds remove the method for fine particle in coal-fired plant flue gas, it is characterised in that application any one of claim 1-28
Fine particle in described method removing coal-fired plant flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617095.0A CN106178803A (en) | 2016-07-29 | 2016-07-29 | A kind of remove the method for fine particle in gas phase mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617095.0A CN106178803A (en) | 2016-07-29 | 2016-07-29 | A kind of remove the method for fine particle in gas phase mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106178803A true CN106178803A (en) | 2016-12-07 |
Family
ID=57498511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610617095.0A Pending CN106178803A (en) | 2016-07-29 | 2016-07-29 | A kind of remove the method for fine particle in gas phase mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106178803A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018018573A1 (en) * | 2016-07-29 | 2018-02-01 | 国电新能源技术研究院 | Method for removing fine particulate matters in flue gas of coal-fired power plant |
| CN113694827A (en) * | 2021-08-27 | 2021-11-26 | 新希望六和股份有限公司 | Equidistant particle cutting method of centrifugal particle forming machine for feed production |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005076028A (en) * | 2003-08-28 | 2005-03-24 | Afton Chemical Corp | Method and composition for suppressing coal dust |
| CN102380278A (en) * | 2011-09-22 | 2012-03-21 | 东南大学 | Method for cooperatively promoting agglomeration growth of PM (particulate matter) 2.5 and treating desulfuration wastewater in evaporation manner and device of method |
| CN105018033A (en) * | 2015-07-06 | 2015-11-04 | 程叶红 | Coal dust suppressant |
| CN105067773A (en) * | 2015-08-07 | 2015-11-18 | 东南大学 | Unorganized-dust dust suppressant dust restraining rate testing and evaluating device and method |
-
2016
- 2016-07-29 CN CN201610617095.0A patent/CN106178803A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005076028A (en) * | 2003-08-28 | 2005-03-24 | Afton Chemical Corp | Method and composition for suppressing coal dust |
| CN102380278A (en) * | 2011-09-22 | 2012-03-21 | 东南大学 | Method for cooperatively promoting agglomeration growth of PM (particulate matter) 2.5 and treating desulfuration wastewater in evaporation manner and device of method |
| CN105018033A (en) * | 2015-07-06 | 2015-11-04 | 程叶红 | Coal dust suppressant |
| CN105067773A (en) * | 2015-08-07 | 2015-11-18 | 东南大学 | Unorganized-dust dust suppressant dust restraining rate testing and evaluating device and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018018573A1 (en) * | 2016-07-29 | 2018-02-01 | 国电新能源技术研究院 | Method for removing fine particulate matters in flue gas of coal-fired power plant |
| CN113694827A (en) * | 2021-08-27 | 2021-11-26 | 新希望六和股份有限公司 | Equidistant particle cutting method of centrifugal particle forming machine for feed production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018018573A1 (en) | Method for removing fine particulate matters in flue gas of coal-fired power plant | |
| CN105056679B (en) | PM in process of wet desulphurization2.5Removal methods and its device | |
| CN105126561B (en) | A kind of coal-fired flue-gas PM based on desulfurization wastewater evaporation process2.5/SO3/ Hg combines removal methods | |
| CN102380278B (en) | Method for cooperatively promoting agglomeration growth of PM (particulate matter) 2.5 and treating desulfuration wastewater in evaporation manner and device of method | |
| US9387435B2 (en) | Mercury sorbents | |
| CN104474830B (en) | For removing chemical agglomeration promotor and the using method thereof of coal-fired fine particle | |
| CN107096350B (en) | A kind of chemical agglomeration promotor and method of collaboration removal coal-fired flue-gas pollutant | |
| CN104147890B (en) | Utilize attapulgite clay suspension to reunite and trap coal-fired PM 2.5method | |
| Zheng et al. | Evolution of condensable fine particle size distribution in simulated flue gas by external regulation for growth enhancement | |
| CN104743712B (en) | A kind of dirty method of quick removal Oil in Sewage Water | |
| Zhou et al. | Improving the removal of fine particles by chemical agglomeration during the limestone-gypsum wet flue gas desulfurization process | |
| CN205055726U (en) | Wet flue gas desulfurization in -process PM2. 5 desorption device | |
| CN106178804A (en) | A kind of remove the system of fine particle in gas phase mixture | |
| CN106178803A (en) | A kind of remove the method for fine particle in gas phase mixture | |
| WO2015169125A1 (en) | Method for removing dust in gas fumes | |
| CN107441884A (en) | A kind of method of particulate pollutant in efficient removal coal-fired flue-gas of chemical agglomeration and acoustic agglomeration based on waste water | |
| CN204911125U (en) | Clean system of electric water smoke of whirlwind formula lotus separation micronic dust air | |
| CN105771531B (en) | A kind of chemical agglomeration promotor | |
| US11745135B2 (en) | Heterogeneous agglomeration adsorbent for heavy metal adsorption, method for preparing same, and applications thereof | |
| CN203458942U (en) | Ultrafine particle chemical agglomeration flocculation device based on wet desulphurization system | |
| CN108246025B (en) | Method for simultaneously absorbing carbon dioxide by coupling, atomizing and dedusting compound solution | |
| CN204034494U (en) | A kind of haze processor | |
| CN103977698A (en) | Method for reducing emission of PM 2.5 and SO2 at outlet of wet desulphurization system | |
| CN204563801U (en) | Air cleaning is except pathogen filter | |
| TWI257876B (en) | Method and apparatus for treating waste gas containing acids and/or bases |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
|
| RJ01 | Rejection of invention patent application after publication |