CN106178765A - The charged ultrapurification plant of mist formula - Google Patents
The charged ultrapurification plant of mist formula Download PDFInfo
- Publication number
- CN106178765A CN106178765A CN201610798697.0A CN201610798697A CN106178765A CN 106178765 A CN106178765 A CN 106178765A CN 201610798697 A CN201610798697 A CN 201610798697A CN 106178765 A CN106178765 A CN 106178765A
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- ultrapurification
- tower
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- plant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
- B01D47/063—Spray cleaning with two or more jets impinging against each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/22—Materials not provided for elsewhere for dust-laying or dust-absorbing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/02—Enhancing the particle separation by electrostatic or magnetic effects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/06—Separation units provided with means for cleaning and maintenance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of charged ultrapurification plant of mist formula, including ultrapurification tower, the blast pipe of flue gas is sent at the middle part of ultrapurification tower in arranging oriented tower, the top of ultrapurification tower is provided with the chimney discharging clean flue gas, and the bottom of ultrapurification tower is provided with blow-off pipe；The ultrapurification tower being positioned at blast pipe oblique upper arranges the atomizing lance spraying band charged liquid on the flue gas of oriented entrance tower.The present invention can make flue gas pass through diversion mode even into ultrapurification tower, band charged liquid covers flue gas by high-pressure atomization, and impact, adsorb and reunite small powder material so that it is aggregate into the sedimentation of big shape grain with and catch, various pollutant can be purified simultaneously, reach ultra-clean discharge.
Description
Technical field
The present invention relates to technical field of environment protection equipment, particularly a kind of smoke gas treatment purifier.
Background technology
Carry out the kiln burnt with main fuels such as fire coal, fuel oil, combustion gas, produce substantial amounts of SO2、NOX, dust and a large amount of
Heavy metal, directly environment will be caused severe contamination by discharge, it is therefore desirable to carry out dust removal process before fume emission.Coal-fired pot
The cleaner unit that stove uses is divided into dry collector and the big class of wet scrubber two, and wherein the microgranule in flue gas is returned by dry collector
Receipts can play a role, but desulfurized effect is poor, operation more inconvenience；Therefore at present for the purified treatment of flue gas,
Mostly carry out udst separation by wet-esp, with meet the requirement of environmental protection.
But, existing wet-esp pertains only to single udst separation, exists and easily climbs after Charging system is paddled
Electrical phenomena, water consumption are big, Posterior circle shipwreck to be the shortcoming such as to process and power consumption is big, it is impossible to realize ultra-clean discharge.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of smoke eliminator, it is possible to make the mistake of flue gas turbulization
Cheng Zhong, adsorbs, reunites and restrains the SO in flue gas2、NOX, dust and heavy metal, reach ultra-clean discharge.
For solving above-mentioned technical problem, the technical solution used in the present invention is as follows.
The charged ultrapurification plant of mist formula, including ultrapurification tower, flue gas is sent in arranging oriented tower in the middle part of ultrapurification tower
Blast pipe, the top of ultrapurification tower is provided with the chimney discharging clean flue gas, and the bottom of ultrapurification tower is provided with blow-off pipe；It is positioned at
The atomizing lance spraying band charged liquid on flue gas in oriented entrance tower is set in the ultrapurification tower of blast pipe oblique upper.
The above-mentioned charged ultrapurification plant of mist formula, described atomizing lance is radially arranged along ultrapurification tower cross section, atomizing lance
And the angle between the horizontal plane of blast pipe place is 30 °～50 °.
The above-mentioned charged ultrapurification plant of mist formula, described atomizing lance place horizontal plane is provided with two that angle is 30 ° altogether
Atomizing lance.
The above-mentioned charged ultrapurification plant of mist formula, is positioned at the ultrapurification tower above atomizing lance and is provided with in absorption flue gas dirty
The packing layer of dye thing.
The above-mentioned charged ultrapurification plant of mist formula, is positioned at the ultrapurification tower above packing layer and is provided with except mist wash mill.
The above-mentioned charged ultrapurification plant of mist formula, is positioned in the air inlet pipe outside ultrapurification tower and is provided with spiral water conservancy diversion air intake dress
Put.
The above-mentioned charged ultrapurification plant of mist formula, containing coal stream dust suppressant in the band charged liquid of described atomizing lance ejection.
The above-mentioned charged ultrapurification plant of mist formula, described coal stream dust suppressant includes the component of following mass fraction: starch-grafted
Acrylate copolymer 1%～3%, sodium lauryl sulphate SDS0.01%～0.05%.
The above-mentioned charged ultrapurification plant of mist formula, described coal stream dust suppressant includes the component of following mass fraction: polyanion
Cellulose0.1%～0.3%, surfactant triton x-1000.01%～0.05%.
The above-mentioned charged ultrapurification plant of mist formula, described surfactant includes the component of following mass fraction: rapid osmotic
Agent T0.03%～0.08%, alkyl polyglucoside 0.01%～0.03%, increase
Effect agent is held concurrently the sodium silicate of water-retaining agent mass concentration 0.1%
Owing to have employed above technical scheme, the invention technological progress is as follows.
The application of the present invention, can make flue gas pass through diversion mode and pass through high pressure even into ultrapurification tower, band charged liquid
Atomization covers flue gas, and impact, adsorb and reunite small powder material so that it is aggregate into the sedimentation of big shape grain with and catch, the most sharp
Powder material is again caught with packing layer above ultrapurification tower, and by catching particulate matter further except mist wash mill, can be simultaneously
Purify various pollutant, reach ultra-clean discharge.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Wherein: 1. ultrapurification tower, 2. except mist wash mill, 3. packing layer, 4. atomizing lance, 5. blast pipe, 6. blow-off pipe,
7. chimney.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
Embodiment 1
A kind of charged ultrapurification plant of mist formula, its structure is as it is shown in figure 1, include ultrapurification tower 1, and the middle part of ultrapurification tower sets
It is equipped with blast pipe 5, for sending into flue gas in tower；The top of ultrapurification tower is provided with chimney 7, for discharging after treatment
Clean flue gas；The bottom of ultrapurification tower is provided with blow-off pipe 6, the sewage produced during discharging fume treatment.
It is provided with the equipment that flue gas is processed in ultrapurification tower, mainly includes being successively set on ultrapurification from bottom to top
Atomizing lance 4 on inner wall of tower, packing layer 3 and except mist wash mill 2.
Atomizing lance 4 sprays band charged liquid on the flue gas in oriented entrance tower, and atomizing lance 4 is arranged on blast pipe
In the ultrapurification tower of oblique upper, atomizing lance is radially arranged along ultrapurification tower cross section, atomizing lance 4 and blast pipe 5 place water
Angle between plane is 30 °～50 °, in the present embodiment, for ensureing dust removing effects, and atomizing lance 4 and blast pipe 5 place level
Angle between face is 45 °.
For improving dust removing effects, the present invention also can arrange two atomizing lances at atomizing lance place horizontal plane altogether, two
Angle between atomizing lance is 30 °, as shown in Figure 2.
Atomizing lance in the present invention is a kind of low pressure two-fluid spray spray gun, is atomized water by compressed air,
Making water form the fine liquid particles of countless high-speed motion, the water droplet in high-speed motion and dust granules collide and are combined in one
Rising, granule increases because of surface moisture, and is easy between granule mutually flock together formation greatly under the effect of surface water
Granule dust, makes particle bulk weight increase and departs from the movement locus of flue gas and fall to wash tower bottoms.
The present invention uses spray pattern, and relative to traditional spray mode, water fog particle particle diameter only has spray mode granule
The 1/10 of particle diameter, so the water of unit volume differs 1000 times at its amounts of particles after atomization, spray flux density is very big, makes
Dust has nowhere to run；And the water smoke produced can make dust generation moistening bond, and assemble, become big thus fall down；Therefore
The present invention utilizes the high speed tax that atomizing lance sprays with flue gas mutually to spray, it is achieved that purifying and dedusting.
Containing coal stream dust suppressant in the band charged liquid of ejection in the atomizing lance of the present invention, coal stream dust suppressant includes following
The component of mass fraction: starch graft acrylic acid polymer 1%～3%, sodium lauryl sulphate SDS
0.01%～0.05%.In the present embodiment, the mass fraction of starch graft acrylic acid polymer is 2%, sodium dialkyl sulfate SDSMass fraction be 0.03%.
The preparation method of starch graft acrylic acid polymer is: with starchFor raw material, over cure
Acid ammonium (NH4)2S2O8-sodium sulfite NaHSO3For initiator, acrylic acidAnd acrylamide
For grafted monomers, Triallyl isocyanurate (TAIC)For cross-linking agent, hydrogen
Sodium oxide (NaOH) is nertralizer, uses water solution polymerization process to prepare after starch gelatinization.
In the preparation process of starch graft acrylic acid polymer, monomer is connect by the graft copolymer of starch by graft copolymerization
Branch is on the carbon atom of starch chain.Starch Super Water Absorbent Resin, is commonly referred to as starch and acrylonitrile, acrylic acid (sodium) and third
The monomers such as acrylamide carry out the product that copolymerization obtains, and graft reaction can be by free radical initiation, anionic initiation and coupling reaction
Deng occurring, free radical is typically used to cause.Free radical cause be starch under initiator effect, generate Starch Free Radicals, starch
Free radical generates monomer radical again with monomer reaction, then increases generation monomer graft starch polymer by chain.
Coal stream dust suppressant in the present invention is based on degradable, coalescence material nontoxic, free of contamination, additional efficiently
A kind of dynamically dust suppressant of wettability material synthesis, this dust suppressant energy quickly moistened dust, small-particle coal grain coalescence is become big
Grain, has good anti-dust effect.
The packing layer 3 of the present invention is arranged in the ultrapurification tower above atomizing lance, is used for adsorbing pollutant in flue gas.Remove
Mist wash mill 2 is arranged in the ultrapurification tower above packing layer, all can reprocess the flue gas after spraying treatment, carries
High clean-up effect.
The present invention is provided with spiral water conservancy diversion air-intake device in the air inlet pipe being positioned at outside ultrapurification tower, such that it is able to make flue gas
Enter into uniformly and stably in ultrapurification tower.
Using the present invention that flue gas is carried out purified treatment, can make in the flue gas of discharge, particle concentration is 30mg/Nm3, grain
Footpath is less than 30 microns, and dust emission can be less than 5mg/Nm3, water consumption is low, is only the 5-10% of tradition water, can energy efficient
50%；There is installation, the advantage that easy to maintenance, floor space is little, operating cost is low.
Embodiment 2
The present embodiment differs only in from embodiment 1: the component of coal stream dust suppressant is different.Coal stream dust suppression in the present embodiment
Agent includes the component of following mass fraction: polyanion cellulose0.1%～
0.3%, nonionic surfactant 0.01%～0.05%.In the present embodiment, the mass fraction of polyanion cellulose is
0.1%, the mass fraction of nonionic surfactant is 0.03%.
Polyanion cellulose synthetic method is: the size-reduced machine of absorbent cotton is ground into powder, NaOH analytical pure,
ClCHZCOOH analytical pure, HCl analytical pure, CH3CHOHCH3Analytical pure, 95%CH3CH2OH analytical pure, C6H6Analytical pure, NaCl divides
Analyse pure, nonionic surfactant, technical grade N2, synthesize in above-mentioned raw materials is loaded on steel cylinder.
Nonionic surfactant includes the component of following mass fraction: fast penetrant T
0.03%～0.08%, alkyl polyglucoside 0.01%～0.03%, synergist hold concurrently water-retaining agent select mass concentration 0.1%～0.3%
Sodium silicateIn the present embodiment, the mass fraction of fast penetrant T is 0.05%；The mass parts of alkyl polyglucoside
Number is 0.01%；Synergist hold concurrently water-retaining agent select mass concentration 0.1% sodium silicateMass fraction is
0.5%.
Fast penetrant T preparation principle is undertaken in two steps, described in detail below.
The first step is esterification, i.e. with maleic anhydride and isooctanol as raw material, under catalyst action, synthesizes suitable
Diisooctyl butenedioate, its reaction equation is:
Second step is sulfonating reaction, i.e. adds sodium sulfite and phase transfer catalyst in first step product, its
Reaction equation is:
By-product monoesters is also had to generate in esterification reaction process:
Fast penetrant T obtains through dibasic acid esters sulfonation, so the monoesters that the first step generates needs to neutralize, and neutralizes life
The monoester sodium salt become can be as follows as the phase transfer catalyst of second step sulfonating reaction, reaction equation:
H17C8OOCCH=CHCOOH+NaOH → H17C8OOCCH=CHCOONa+H2O
Nonionic surfactant in the present invention, nontoxic, odorless, dissolubility is big, and low temperature does not crystallizes, without precipitation and salt
Analysis phenomenon, can be greatly lowered the surface tension of water, and holding time length and physicochemical property are constant, non-combustible, to metal and rubber
Corrosion-free, low cost, and convenient transportation.
Claims (10)
1. the charged ultrapurification plant of mist formula, it is characterised in that: including ultrapurification tower (1), the middle part of ultrapurification tower arranges oriented tower
The blast pipe (5) of interior feeding flue gas, the top of ultrapurification tower is provided with the chimney (7) discharging clean flue gas, the end of ultrapurification tower
Portion is provided with blow-off pipe (6)；The ultrapurification tower being positioned at blast pipe oblique upper arranges sprinkling band on the flue gas of oriented entrance tower
The atomizing lance (4) of charged liquid.
The charged ultrapurification plant of mist formula the most according to claim 1, it is characterised in that: described atomizing lance is along ultrapurification tower
Cross section is radially arranged, and the angle between atomizing lance (4) and blast pipe (5) place horizontal plane is 30 °～50 °.
The charged ultrapurification plant of mist formula the most according to claim 2, it is characterised in that: described atomizing lance place horizontal plane
It is provided with two atomizing lances that angle is 30 ° altogether.
The charged ultrapurification plant of mist formula the most according to claim 1, it is characterised in that: be positioned at above atomizing lance is ultra-clean
The packing layer (3) of pollutant in absorption flue gas it is provided with in changing tower.
The charged ultrapurification plant of mist formula the most according to claim 4, it is characterised in that: it is positioned at the ultrapurification above packing layer
It is provided with in tower except mist wash mill (2).
6. according to the charged ultrapurification plant of mist formula described in any one of claim 1 to 5, it is characterised in that: it is positioned at ultrapurification tower
Spiral water conservancy diversion air-intake device it is provided with in outer air inlet pipe.
The charged ultrapurification plant of mist formula the most according to claim 1, it is characterised in that: the band lotus of described atomizing lance ejection
Containing coal stream dust suppressant in electro-hydraulic body.
The charged ultrapurification plant of mist formula the most according to claim 7, it is characterised in that described coal stream dust suppressant includes following
The component of mass fraction: starch graft acrylic acid polymer 1%～3%, sodium lauryl sulphate SDS0.01%～0.05%.
The charged ultrapurification plant of mist formula the most according to claim 7, it is characterised in that described coal stream dust suppressant includes following
The component of mass fraction: polyanion cellulose (C6H7O2(OH)2OCH2COONa〕n0.1%～0.3%, surfactant QULA
Logical X-1000.01%～0.05%.
The charged ultrapurification plant of mist formula the most according to claim 9, it is characterised in that described surfactant include with
The component of lower mass fraction: fast penetrant T0.03%～0.08%,
Alkyl polyglucoside 0.01%～0.03%, synergist is held concurrently the sodium silicate of water-retaining agent mass concentration 0.1%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610798697.0A CN106178765B (en) | 2016-08-31 | 2016-08-31 | Fog type charged super-purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610798697.0A CN106178765B (en) | 2016-08-31 | 2016-08-31 | Fog type charged super-purifying device |
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| CN106178765A true CN106178765A (en) | 2016-12-07 |
| CN106178765B CN106178765B (en) | 2021-07-27 |
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| CN201610798697.0A Active CN106178765B (en) | 2016-08-31 | 2016-08-31 | Fog type charged super-purifying device |
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Cited By (3)
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| CN108176167A (en) * | 2017-12-29 | 2018-06-19 | 西安科技大学 | Coal-burning power plant's dedusting denitration activity agent and preparation method, application method and application |
| CN108744820A (en) * | 2018-06-11 | 2018-11-06 | 西安交通大学 | A kind of ultrasonic atomization pre electrified turbulence coagulation device |
| WO2022228938A1 (en) * | 2021-04-26 | 2022-11-03 | Basf Se | Device and method for separating liquid droplets from a gas stream by means of a centrifugal mist eliminator |
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| CN108176167A (en) * | 2017-12-29 | 2018-06-19 | 西安科技大学 | Coal-burning power plant's dedusting denitration activity agent and preparation method, application method and application |
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| CN108744820A (en) * | 2018-06-11 | 2018-11-06 | 西安交通大学 | A kind of ultrasonic atomization pre electrified turbulence coagulation device |
| WO2022228938A1 (en) * | 2021-04-26 | 2022-11-03 | Basf Se | Device and method for separating liquid droplets from a gas stream by means of a centrifugal mist eliminator |
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| Publication number | Publication date |
|---|---|
| CN106178765B (en) | 2021-07-27 |
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