CN107413176A - A kind of ammonia process of desulfurization dedusting flue gas minimum discharge system and application - Google Patents
A kind of ammonia process of desulfurization dedusting flue gas minimum discharge system and application Download PDFInfo
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/12—Washers with plural different washing sections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/73—After-treatment of removed components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
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- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/10—Means for removing the washing fluid dispersed in the gas or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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Abstract
The present invention relates to a kind of ammonia process of desulfurization dedusting flue gas minimum discharge system, the system includes desulfurizing tower tower body, concentrated circulating pump, mixing pump, slurry pump, desulfuration recycle pump, water washing cycles pump, mist eliminator flushing water pump, water circulation case, gas approach and exhanst gas outlet, the interior bottom portion of the desulfurizing tower tower body is coaxially disposed enriching section, the top of the desulfurizing tower tower body sets exhanst gas outlet with being connected inside desulfurizing tower tower body, the inside of desulfurizing tower tower body between the enriching section and exhanst gas outlet sets gradually desulfurization section from bottom to top, washing section and demisting section, gas approach is set on the desulfurizing tower tower body of the enriching section；The concentrated circulating pump, mixing pump, slurry pump, desulfuration recycle pump, water washing cycles pump, mist eliminator flushing water pump, water circulation case may be contained within outside desulfurizing tower tower body.The system have the advantages that desulfuration efficiency is high, ammonia escape amount less, desulfurization neat stress cleanliness factor is high, system is not easily blocked, floor space is small, equipment is few, control is simple.
Description
Technical field
The invention belongs to environmental technology field, is related to ammonia type flue gas desulfurizing dust pelletizing system, and especially a kind of ammonia process of desulfurization removes
Cloud of dust gas minimum discharge system and application.
Background technology
Increasingly stricter with environmental protection policy, most of coal unit will reach minimum discharge requirement, i.e., in benchmark
Under the conditions of oxygen content 6%, flue gas flue dust, the sulfur dioxide of discharge are respectively no higher than 10,35mg/Nm3.Ammonia type flue gas desulfurizing dedusting
Compared with other desulfurization dust-removing techniques, reaction rate is fast, and accessory substance ammonium sulfate has very big market value, but the desulfurization technology
Still there are many problems, it is necessary to be optimized to it.Such as：(1) traditional ammonia-process desulfurization technique technics comparing is complicated, system and device compared with
It is more, place floor space is larger, may be smaller because of live site area for the improvement project of desulfurizing tower, transformation difficulty is big；
(2) after being absorbed by desulfurization section, the impurity such as many ammonium salt drops, dust, free ammonia can be remained in the flue gas after purification, and are passed
System ammonia-process desulfurization technique is washed using desulphurization circulating slurries to flue gas mostly, and washing concentration of slurry is higher, or using simple
Spray washing, the impurity such as ammonium salt contained in flue gas can not be cleaned, i.e., can not meet flue gas minimum discharge dust 5mg/Nm3Will
Ask；(3) because in desulfurizing tower concentration basin concentration of slurry it is higher, slurry droplet can flow up with flue gas, and be attached in desulfurizing tower
On apparatus surface, crystallization, fouling, or even clogging are easily caused.
Therefore, to solve the above problems, requiring that the present invention is in traditional ammonia method desulfurizing system for flue gas minimum discharge transformation
On the basis of, the optimization and improvement of system have been carried out, a kind of ammonia process of desulfurization dedusting flue gas minimum discharge system has finally been invented, has made
Obtain the reduction of device quantity, floor space reduces, the clean-up effect of flue gas greatly improves, control system simplifies.
By retrieval, following two patent publication us related to present patent application are found：
A kind of ammonia desulfuration equipment and method (CN104289090B), are related to a kind of ammonia desulfuration equipment and method, wherein
Including absorption system, technique water system, absorb fluid circulation, compressed air system.The invention device and method effectively increase
Add absorption efficiency and avoid the escape of ammonia.But the invention is disadvantageous in that：(1) absorbing liquid storage tank is set outside tower, accounted for
Ground is larger；(2) it is undesirable using common spray washing, water washing effect, it is impossible to meet minimum discharge requirement；(3) only in absorbing liquid
Storage tank storage tank aoxidizes, and ammonium sulfate product is of poor quality；(4) non-recoil of one-level catch tray lower surface is washed, easily crystallization；(5) ammoniacal liquor is supplied to
Bottom of towe concentration basin, absorb liquid storage tank and supplied without ammoniacal liquor, pH is relatively low, and desulfuration efficiency is low；(6) water washing tank, absorption liquid storage tank, concentration basin
Between use pump fluid infusion, control trouble.
A kind of external potent oxidation ammonia desulfurizing process and device (CN103566746A), are related to a kind of external potent oxidation
Ammonia desulfurizing process and device, desulfurizing tower are followed successively by from bottom to top：Crystallized region, particulate matter washing absorption section, desulfurization are washed ammonia section, removed
Mist section；The invented technology and device carry out the oxidation of ammonium sulfite in external oxidation case, and employ very low ammonium sulfate
Concentration and good air distribution pipe net, oxidation efficiency is very high, successfully solves the problems, such as that ammonia process of desulfurization oxidation is difficult.But the hair
It is bright to be disadvantageous in that：(1) oxidation case is external, and floor space is big, equipment is more；(2) desulfurization is washed ammonia section liquid distribution trough and filled out
The bed of material is sprayed using unsaturated ammonium sulfate in external oxidation case, ammonium salt is contained in exiting flue gas, clean-up effect is bad；
(3) liquid header is not provided with backwashing, easily crystallization；(4) aoxidize between case, desulfurization tower bottom stock tank and be not provided with overflow pipe, no
Automatic water supplement can be realized；(5) aoxidize between case and desulfurizing tower and be not provided with gas connection pipe road, air can not discharge oxidation case.
By contrast, there is the difference of essence with above-mentioned patent publication us in present patent application.
The content of the invention
It is an object of the invention in place of overcome the deficiencies in the prior art, there is provided a kind of ultralow row of ammonia process of desulfurization dedusting flue gas
Place system, the system have desulfuration efficiency is high, floor space is small, number of devices is few, desulfurization fume cleanliness factor is high, is not easy crystallization to block up
Fill in, control the advantages that simple.
In order to realize foregoing invention purpose, the present invention uses following technical scheme：
A kind of ammonia process of desulfurization dedusting flue gas minimum discharge system, the system include desulfurizing tower tower body, concentrated circulating pump, stirred
Pump, slurry pump, desulfuration recycle pump, water washing cycles pump, mist eliminator flushing water pump, water circulation case, gas approach and exhanst gas outlet are mixed,
The interior bottom portion of the desulfurizing tower tower body is coaxially disposed enriching section, and the top of the desulfurizing tower tower body inside desulfurizing tower tower body with being connected
Logical to set exhanst gas outlet, the inside of the desulfurizing tower tower body between the enriching section and exhanst gas outlet sets gradually desulfurization from bottom to top
Section, washing section and demisting section, gas approach is set on the desulfurizing tower tower body of the enriching section, the gas approach is connected with enriching section
It is logical to set；The concentrated circulating pump, mixing pump, slurry pump, desulfuration recycle pump, water washing cycles pump, mist eliminator flushing water pump, water follow
Ring case may be contained within outside desulfurizing tower tower body.
Moreover, the bottom of the enriching section is coaxially disposed slurry pool, the top of the slurry pool sets gas approach, the slurries
Pond includes concentration basin and the desulphurization circulating pond for mutually separating setting, setting a dividing plate in the slurry pool, the dividing plate divides slurry pool
Concentration basin and desulphurization circulating pond are divided into, the middle and lower part of the concentration basin sets an injection stream agitator, injection stream stirring
Device can spray to slurries in concentration basin concentration basin bottom, and the top of the concentration basin is connected with the enriching section above slurry pool to be set
Put；
The outlet of the mixing pump is connected setting with injection stream agitator, and the import of the mixing pump is connected with concentration basin
Connect setting；Be connected setting row's serum outlet on the desulfurizing tower tower body of the concentration basin bottom with concentration basin, and the plasma discharge liquid goes out
Mouth sets oxidation wind inlet, the oxidation wind inlet with being connected on the desulfurizing tower tower body between injection stream agitator with concentration basin
Can be connected setting with oxidation fan, and row's serum outlet can be connected setting with slurry pump.
Moreover, the top droop in the desulphurization circulating pond, which is set, tilts closed guard, the inclination bottom of the inclination closed guard
End be closely arranged at the top of dividing plate and be obliquely installed to concentration basin side, the inclination closed guard can by desulphurization circulating pond with it is dense
Enriching section above contracting pond, desulphurization circulating pond separates；Several are set on gradient baffle plate above the desulphurization circulating pond
Steam vent with top cover；Overflow pipe, the overflow pipe and concentration are set at the top of the dividing plate between the concentration basin and desulphurization circulating pond
Pond, desulphurization circulating pond are connected setting, and when liquid level of solution exceedes the mouth of pipe of overflow pipe in desulphurization circulating pond, solution overflows automatically
Flow in concentration basin；
It is connected on the desulfurizing tower tower body of desulphurization circulating pond middle and lower part with desulphurization circulating pond and liquefied ammonia/ammoniacal liquor/ammonia is set
Gas import and oxidation wind inlet；
Enriching section spraying layer is set at the top of enriching section above the gas approach, the import of the enriching section spraying layer with it is dense
The outlet of contracting circulating pump is connected setting, and the import of the concentrated circulating pump is connected setting with concentration basin；
Desulfurization section above the enriching section spraying layer is arranged at intervals the desulfurization section liquid collecting with gas cap successively from the bottom to top
Device and desulfurization section spraying layer, the lower surface of the desulfurization section liquid trap set backwash spraying layer；The desulfurization section spraying layer
Import and backwash the import of spraying layer and be connected respectively with the outlet of desulfuration recycle pump setting, the import of the desulfuration recycle pump
Be connected setting with desulphurization circulating pond, and the desulfurization section liquid trap is also connected setting with desulphurization circulating pond；
Washing section liquid trap, turbulator and water are set gradually from the bottom to top in washing section above the desulfurization section spraying layer
Wash a section spraying layer, the washing section liquid trap is connected setting with the top of water circulation case, the import of the washing section spraying layer
Outlet with water washing cycles pump is connected setting, and the import of the water washing cycles pump is connected setting with the middle and lower part of water circulation case；
Demister is set gradually in demisting section above the washing section spraying layer from the bottom to top and demisting section rinses layer, institute
State demisting section and rinse the import of layer and be connected with the outlet of mist eliminator flushing water pump setting, the mist eliminator flushing unit fixed on water pump suction and water
The middle and lower part of circulating box is connected setting；
The top of the water circulation case and the bottom in desulphurization circulating pond are connected setting by connecting pipe, the water circulation case
Top set technique water inlet；Process water is entered in water circulation case by technique water inlet.
Moreover, the middle of the gradient baffle plate sets several steam vents with top cover.
Moreover, pipeline sets motor-driven valve between the desulfuration recycle pump and backwash spraying layer.
Moreover, the turbulator is air swirl device, grid or Venturi tube.
Moreover, washing spraying layer, washing section liquid trap or the water washing cycles case are one or two or more sets of.
Moreover, the desulfurization spraying layer or concentration spraying layer are one layer or more than two layers.
Moreover, the demister is pneumatic high-effective dust-removing demister.
The application of minimum discharge ammonia method desulfurizing system and device in terms of smoke-gas wet desulfurization as described above.
The advantages of present invention obtains and good effect are：
1st, the system have desulfuration efficiency is high, ammonia escape amount less, floor space is small, number of devices is few, desulfurization fume is clean
The advantages that cleanliness is high, system is not easy Crystallization Plugging, control system is simple.
2nd, desulfurizing tower bottom of towe slurry pool subregion is divided into concentration basin and desulphurization circulating pond by the system；Built in desulphurization circulating pond
In in desulfurizing tower bottom of towe, while desulfuration efficiency is ensured, the floor space of system reduces, and number of devices is also reduced；In addition,
Steam vent is set at the top of desulphurization circulating pond, and unnecessary ammonia directly can successively enter enriching section spraying layer in pond and desulfurization section sprays
Drenching layer, so as to circulation fluid and SO2Reaction, it is therefore prevented that the escape of ammonia.
3rd, the system desulfurizing tower is respectively from bottom to top enriching section, desulfurization section, washing section, demisting section, and uses desulfurization section
Liquid trap separates enriching section and desulfurization section, separates desulfurization section and washing section using washing section liquid trap, realizes each section of function
Subregion；Enriching section spraying layer uses the ammonium salt solution that concentration is higher in concentration basin to be sprayed, it is therefore an objective to flue gas is cooled,
Heat in pre-absorption and utilization flue gas, crystallizes ammonium sulfate concentration, is subsequently generated sulfuric acid ammonium product；Desulfurization section spraying layer is using de-
Liquefied ammonia/ammonium sulfite/ammonium sulfate slurry solution is sprayed in sulfur cycle pond, can fully absorb the SO in flue gas2, improve de-
Sulphur efficiency；Washing section sets turbulator, flue gas is blended strongly with water, increases gas-liquid contact surface area, absorption efficiency height can be with
Free ammonia and ammonium salt in flue gas are substantially reduced, the cleaning performance of flue gas greatly improves.
4th, the system desulfurization section liquid trap lower surface sets backwash spraying layer, is followed using the unsaturation in desulphurization circulating pond
The saturation residual solution that ring liquid carries to its lower surface flue gas is rinsed, and is eliminated crystallization, the fouling of desulfurization section liquid trap, is prevented
Liquid trap blocks.
5th, each section of subregion of the system, circulation fluid concentration graded in water circulation case, desulphurization circulating pond, concentration basin, concentration are gradual
Increase, classification absorbs, and desulfurization and dedusting effect is good；And water circulation case, desulphurization circulating pond, the design liquid level of concentration basin reduce step by step,
Between connected with connecting pipe and overflow pipe, concentration cycles pond is main evaporation water spot, and system only needs watering cycle case supplement
Process water, realize that overflow automatic water supplement, control are simple step by step by liquid level difference.
6th, the system desulphurization tower slurry pool sets the double pond dual-stage oxidation systems of a tower, bottom of towe concentration basin and desulphurization circulating pond point
Oxidation air is not passed through, based on the oxidation of desulphurization circulating pond, supplemented by concentration basin oxidation, ensure that desulphurization circulating pond slurries overflow to
It is fully oxidized after concentration basin, meet sulphate finished product requirement.
Brief description of the drawings
Fig. 1 is a kind of structure connection diagram of the present invention；
Wherein, 1- desulfurizing towers tower body, 2- slurry pumps, 3- mixing pumps, 4- concentrated circulating pumps, 5- injection stream agitators, 6-
Concentration basin, 7- desulphurization circulatings pond, 8- desulfuration recycle pumps, 9- smoke inlets, 10- enriching section spraying layers, 11- desulfurization section liquid traps,
12- desulfurization section spraying layer 13- washing section liquid traps, 14- turbulators, 15- washing section spraying layers, 16- demisters, 17- demisting sections
Rinse layer, 18- exhanst gas outlets, 19- mist eliminator flushing water pumps, 20- water washing cycles pumps, 21- water circulation casees, 22- steam vents, 23-
Overflow pipe, 24- backwash spraying layers, 25- motor-driven valves, 26- tilt closed guard, 27- dividing plates, 28- connecting pipes.
Embodiment
Below in conjunction with the accompanying drawings and by embodiment, the present invention is further elaborated, and the following example is illustrative
, it is not limited, it is impossible to described limit protection scope of the present invention with following.
The structure be not described in detail in the present invention, annexation etc., it can be understood as ordinary skill in the art means.
A kind of ammonia process of desulfurization dedusting flue gas minimum discharge system, as shown in figure 1, the system includes desulfurizing tower tower body 1, dense
Contracting circulating pump 4, mixing pump 3, slurry pump 2, desulfuration recycle pump 8, water washing cycles pump 20, mist eliminator flushing water pump 19, water circulation case
21st, gas approach 9 and exhanst gas outlet 18, the interior bottom portion of the desulfurizing tower tower body are coaxially disposed enriching section (a), the desulfurizing tower tower
The top of body sets exhanst gas outlet, the desulfurizing tower tower between the enriching section and exhanst gas outlet with being connected inside desulfurizing tower tower body
The inside of body sets gradually desulfurization section (b), washing section (c) and demisting section (d), the desulfurizing tower tower body of the enriching section from bottom to top
Upper setting gas approach, the gas approach are connected setting with enriching section；The concentrated circulating pump, mixing pump, slurry pump, desulfurization
Circulating pump, water washing cycles pump, mist eliminator flushing water pump, water circulation case may be contained within outside desulfurizing tower tower body；
The bottom of the enriching section is coaxially disposed slurry pool, and the top of the slurry pool sets gas approach, the slurry pool bag
The concentration basin 6 for mutually separating setting and desulphurization circulating pond 7 are included, a dividing plate 27 is set in the slurry pool, the dividing plate divides slurry pool
Concentration basin and desulphurization circulating pond are divided into, the middle and lower part of the concentration basin sets an injection stream agitator 5, injection stream stirring
Slurries in concentration basin can be sprayed to concentration basin bottom by device, prevent bottom saturation slurries crystal deposition, the top of the concentration basin
Be connected setting with the enriching section above slurry pool；
The outlet of the mixing pump is connected setting with injection stream agitator, and the import of the mixing pump is connected with concentration basin
Connect setting；Be connected setting row's serum outlet (non-label in figure) on the desulfurizing tower tower body of the concentration basin bottom with concentration basin,
Be connected setting oxidation wind inlet on desulfurizing tower tower body between row's serum outlet and injection stream agitator with concentration basin
(non-label in figure), the oxidation wind import can be connected setting with oxidation fan (not shown), row's serum outlet energy
Enough settings that is connected with slurry pump；Oxidation wind is entered in concentration basin by oxidation fan and by oxidation wind inlet, with concentration
Oxidation reaction generation ammonium sulfate occurs for the ammonium sulfite remained in bottom of pond portion, and the ammonium sulfate slurries after concentration can pass through slurry pump
Discharge, prepared for subsequent sulphuric acid ammonium product；
The top droop in the desulphurization circulating pond, which is set, tilts closed guard 26, and the inclination bottom of the inclination closed guard is tight
The close top for being arranged at dividing plate is simultaneously obliquely installed to concentration basin side, and the inclination closed guard can be by desulphurization circulating pond and concentration
Enriching section above pond, desulphurization circulating pond separates, and prevents the saturated solution of enriching section spraying layer from entering in desulphurization circulating pond, Er Qieqing
Oblique closed guard is obliquely installed to concentration basin side, and this kind is set so that the spray liquid being spread across on inclination closed guard can smoothly flow
Enter into concentration basin；Several steam vents 22 with top cover are set on the gradient baffle plate above the desulphurization circulating pond, with
Just oxidation air and escape ammonia can be discharged into desulfurizing tower enriching section by steam vent in desulphurization circulating pond, and be sprayed with enriching section
Absorbing reaction occurs for the solution that drenching layer sprays, to reduce ammonia escape；Dividing plate top between the concentration basin and desulphurization circulating pond
Portion sets overflow pipe 23, and the overflow pipe and concentration basin, desulphurization circulating pond are connected setting, when liquid level of solution in desulphurization circulating pond
More than overflow pipe the mouth of pipe when, solution automatic overflow is into concentration basin, for supplementing in concentration basin the moisture of reduction because of evaporation；
It is connected on the desulfurizing tower tower body of desulphurization circulating pond middle and lower part with desulphurization circulating pond and liquefied ammonia/ammoniacal liquor/ammonia is set
Gas import and oxidation wind inlet, the liquefied ammonia/ammoniacal liquor/ammonia and desulphurization circulating pond sulfite hydrogen ammonium being passed through in desulphurization circulating pond are anti-
Ammonium sulfite should be generated, oxidation reaction generation ammonium sulfate occurs for most of ammonium sulfite solution and the oxidation wind being passed through；
Enriching section spraying layer 10 is set at the top of enriching section above the gas approach, the import of the enriching section spraying layer with
The outlet of concentrated circulating pump is connected setting, and the import of the concentrated circulating pump is connected setting with concentration basin；Circulated in concentration basin
Slurries enter enriching section spraying layer by concentrated circulating pump, and the smoke contacts with adverse current, the pH of enriching section loop slurry is relatively low, pH
It is worth typically in 3-5, therefore to SO2Simply pre-absorption, its main function are flue gas cool-downs, washed, the concentration of ammonium sulfate slurries；
Desulfurization section above the enriching section spraying layer is arranged at intervals the desulfurization section liquid collecting with gas cap successively from the bottom to top
Device 11 and desulfurization section spraying layer 12, for absorbing SO in flue gas2, the lower surface of the desulfurization section liquid trap sets recoil washing and spraying
Layer 24, crystallization, the fouling of the saturation slurries carried for eliminating desulfurization section liquid trap lower surface flue gas, prevents liquid trap from blocking；
The import of the desulfurization section spraying layer and backwash the import of spraying layer and be connected respectively with the outlet of desulfuration recycle pump setting,
The desulfuration recycle pump can provide desulphurization circulating slurries for desulfurization section spraying layer and backwash spraying layer simultaneously, the desulfuration recycle pump
Import is connected setting with desulphurization circulating pond, and the desulfurization section liquid trap is also connected setting with desulphurization circulating pond, the desulfurization section
For the desulphurization circulating liquid that liquid trap is collected from desulphurization circulating pond is flow to, it is de- that the loop slurry in desulphurization circulating pond is mostly used in circulation
Sulphur, small part is by overflow pipe overflow into concentration basin；
Washing section liquid trap 13, turbulator 14 are set gradually in washing section above the desulfurization section spraying layer from the bottom to top
With washing section spraying layer 15, the washing section liquid trap is connected setting with the top of water circulation case, the washing section spraying layer
Import be connected with the outlet of water washing cycles pump setting, the import of the water washing cycles pump is connected with the middle and lower part of water circulation case
Set；The continuous circulated sprinkling of water washing cycles pump, by the powerful mixing effect of spray and turbulator, realize and remained in absorption flue gas
Ammonium salt drop, dust, the material such as free ammonia, turbulator is set, clean result can be strengthened；
Demister 16 is set gradually in demisting section above the washing section spraying layer from the bottom to top and demisting section rinses layer
17, the import that the demisting section rinses layer is connected setting with the outlet of mist eliminator flushing water pump, and the mist eliminator flushing water pump enters
Mouth is connected setting with the middle and lower part of water circulation case；
The top of the water circulation case and the bottom in desulphurization circulating pond are connected setting by connecting pipe 28, the water circulation
The top of case sets technique water inlet (non-label in figure)；Process water is entered in water circulation case by technique water inlet；
For the water lotion that washing section liquid trap is collected from water circulation case is flow to, the water in water circulation case is mostly used in recirculated water
Wash, small part passes through connecting pipe and overflow by overflow pipe to desulphurization circulating pond, water circulation case, desulphurization circulating pond, concentration basin
Pipe realizes that overflow automatic water supplement, the water circulation case, desulphurization circulating pond, concentration basin are overflow automatically step by step by the liquid level discrepancy in elevation step by step
Moisturizing is flowed, can also be fetched water using pump, make the control of system simpler.
In the present embodiment, the turbulator can be air swirl device, grid, Venturi tube etc.；
Or washing spraying layer, washing section liquid trap or the water washing cycles case are one or two or more sets of；
Or the desulfurization spraying layer or concentration spraying layer are one layer or more than two layers；
Or the demister is pneumatic high-effective dust-removing demister or other high efficiency demisters.
In the present embodiment, motor-driven valve 25 is set on the pipeline between the desulfuration recycle pump and backwash spraying layer, just
In regular or unlatching flushing on demand.
The operation principle of ammonia process of desulfurization dedusting flue gas minimum discharge system of the present invention is as follows：
Desulfurization original flue gas is entered by gas approach, sequentially enters enriching section spraying layer, backwash spraying layer, desulfurization section upwards
Liquid trap, desulfurization section spraying layer, washing section liquid trap, turbulator, washing section spraying layer, demister, demisting section rinse layer, desulfurization
Neat stress is most discharged through exhanst gas outlet afterwards.
Desulfurization original flue gas initially enters desulfurizing tower enriching section, is contacted with the ammonium sulfate from desulfurizing tower, flue gas is exhausted
Heat drop temperature, due to the evaporation of ammonium sulfate reclaimed water, ammonium sulfate will be concentrated.The pH of enriching section loop slurry is relatively low,
PH value is typically in 3-5, therefore to SO2Simply pre-absorption, its main function are the dense of flue gas cool-down, washing and ammonium sulfate slurries
Contracting.Ammonium sulfate slurries are concentrated and discharged in concentration basin, wherein containing a small amount of ammonium sulfate crystallization and a small amount of flue dust, are sent to sulphur ammonium
Piece-rate system is post-processed.
Flue gas enters desulfurizing tower desulfurization section by enriching section.Liquefied ammonia/ammonium sulfite/ammonium sulfate slurries from desulphurization circulating pond
By the atomizer of some spraying layers, spraying zone is formed, the slurries droplet of decline forms reverse flow, flue gas with the flue gas risen
With the slurries of spray chemical reaction, SO are produced in liquid phase contact interface2Gas is largely absorbed, and is purified flue gas.Together
When, the most solid grit included in flue gas is also washed separation.
Flue gas after purification enters desulfurizing tower washing section by desulfurization section.Water from water circulation case constantly enters water-filling to flue gas
Wash, and enter in turbulator, flue gas is blended strongly with water, substantially reduce free ammonia and amounts of ammonium salt in flue gas, washing is set
Section liquid trap collects recirculated water to water circulation case.
Finally, flue gas enters absorption tower demisting section by washing section.Demisting section using pneumatic high-effective dust-removing demister or its
His high efficiency demister, flue gas droplet content after demisting section are down to 25mg/Nm3Hereinafter, minimum discharge is reached.
In flue gas and desulfurization slurry counter current contacting, washing process, SO2Absorbed by slurries, and following overall reaction occurs：
SO2+2NH3+H2O=(NH4)2SO3
SO2+(NH4)2SO3+H2O=2NH4HSO3
NH3+NH4HSO3=(NH4)2SO3
In desulphurization circulating pond and concentration basin, the oxidation air that ammonium sulfite is blasted is oxidized to ammonium sulfate：
2(NH4)2SO3+O2=2 (NH4)2SO4。
Claims (9)
- A kind of 1. ammonia process of desulfurization dedusting flue gas minimum discharge system, it is characterised in that：The system includes desulfurizing tower tower body, concentration Circulating pump, mixing pump, slurry pump, desulfuration recycle pump, water washing cycles pump, mist eliminator flushing water pump, water circulation case, gas approach and Exhanst gas outlet, the interior bottom portion of the desulfurizing tower tower body are coaxially disposed enriching section, top and the desulfurizing tower tower of the desulfurizing tower tower body Internal portion, which is connected, sets exhanst gas outlet, the inside of the desulfurizing tower tower body between the enriching section and exhanst gas outlet from bottom to top according to Secondary setting desulfurization section, washing section and demisting section, gas approach is set on the desulfurizing tower tower body of the enriching section, the gas approach with Enriching section is connected setting；The concentrated circulating pump, mixing pump, slurry pump, desulfuration recycle pump, water washing cycles pump, demister punching Wash water pump, water circulation case may be contained within outside desulfurizing tower tower body.
- 2. ammonia process of desulfurization dedusting flue gas minimum discharge system according to claim 1, it is characterised in that：The enriching section Bottom is coaxially disposed slurry pool, and the top of the slurry pool sets gas approach, and the slurry pool includes the concentration basin for mutually separating setting With desulphurization circulating pond, the slurry pool is interior to set a dividing plate, and slurry pool is divided into concentration basin and desulphurization circulating pond, institute by the dividing plate The middle and lower part for stating concentration basin sets an injection stream agitator, and the injection stream agitator can spray to slurries in concentration basin dense Contracting bottom of pond portion, the top of the concentration basin are connected setting with the enriching section above slurry pool；The outlet of the mixing pump is connected setting with injection stream agitator, and the import of the mixing pump is connected with concentration basin to be set Put；Be connected on the desulfurizing tower tower body of the concentration basin bottom with concentration basin setting row serum outlet, row's serum outlet with Be connected setting oxidation wind inlet on desulfurizing tower tower body between injection stream agitator with concentration basin, and the oxidation wind import can Be connected setting with oxidation fan, and row's serum outlet can be connected setting with slurry pump；The top droop in the desulphurization circulating pond, which is set, tilts closed guard, and the inclination bottom of the inclination closed guard is closely set It is obliquely installed in the top of dividing plate and to concentration basin side, the inclination closed guard can be by desulphurization circulating pond and concentration basin, desulfurization Enriching section above circulatory pool separates；Several rows with top cover are set on the gradient baffle plate above the desulphurization circulating pond Stomata；Overflow pipe, the overflow pipe and concentration basin, desulphurization circulating are set at the top of the dividing plate between the concentration basin and desulphurization circulating pond Chi Jun is connected setting, when liquid level of solution exceedes the mouth of pipe of overflow pipe in desulphurization circulating pond, solution automatic overflow to concentration basin In；Being connected on the desulfurizing tower tower body of desulphurization circulating pond middle and lower part with desulphurization circulating pond sets liquefied ammonia/ammoniacal liquor/ammonia to enter Mouth and oxidation wind inlet；Enriching section spraying layer is set at the top of the enriching section above the gas approach, and import and the concentration of the enriching section spraying layer follow The outlet of ring pump is connected setting, and the import of the concentrated circulating pump is connected setting with concentration basin；Desulfurization section above the enriching section spraying layer be arranged at intervals successively from the bottom to top desulfurization section liquid trap with gas cap and Desulfurization section spraying layer, the lower surface of the desulfurization section liquid trap set backwash spraying layer；The import of the desulfurization section spraying layer Import with backwash spraying layer is connected settings with the outlet of desulfuration recycle pump respectively, and the import of the desulfuration recycle pump is with taking off Sulfur cycle pond is connected setting, and the desulfurization section liquid trap is also connected setting with desulphurization circulating pond；Washing section liquid trap, turbulator and washing section are set gradually from the bottom to top in washing section above the desulfurization section spraying layer Spraying layer, the washing section liquid trap are connected setting, the import of the washing section spraying layer and water with the top of water circulation case The outlet for washing circulating pump is connected setting, and the import of the water washing cycles pump is connected setting with the middle and lower part of water circulation case；Demister is set gradually in demisting section above the washing section spraying layer from the bottom to top and demisting section rinses layer, it is described to remove The import that mist section rinses layer is connected setting, the mist eliminator flushing unit fixed on water pump suction and water circulation with the outlet of mist eliminator flushing water pump The middle and lower part of case is connected setting；The top of the water circulation case and the bottom in desulphurization circulating pond are connected setting by connecting pipe, the top of the water circulation case Portion sets technique water inlet；Process water is entered in water circulation case by technique water inlet.
- 3. ammonia process of desulfurization dedusting flue gas minimum discharge system according to claim 2, it is characterised in that：The gradient Several steam vents with top cover are set among baffle plate.
- 4. ammonia process of desulfurization dedusting flue gas minimum discharge system according to claim 2, it is characterised in that：The desulphurization circulating Pipeline sets motor-driven valve between pump and backwash spraying layer.
- 5. ammonia process of desulfurization dedusting flue gas minimum discharge system according to claim 2, it is characterised in that：The turbulator is Air swirl device, grid or Venturi tube.
- 6. ammonia process of desulfurization dedusting flue gas minimum discharge system according to claim 2, it is characterised in that：The washing spray Layer, washing section liquid trap or water washing cycles case are one or two or more sets of.
- 7. ammonia process of desulfurization dedusting flue gas minimum discharge system according to claim 2, it is characterised in that：The desulfurization spray Layer or concentration spraying layer are one layer or more than two layers.
- 8. the ammonia process of desulfurization dedusting flue gas minimum discharge system according to any one of claim 2 to 7, it is characterised in that：Institute It is pneumatic high-effective dust-removing demister to state demister.
- 9. the ammonia process of desulfurization dedusting flue gas minimum discharge system as described in any one of claim 1 to 8 is in smoke-gas wet desulfurization side The application in face.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495341A (en) * | 2013-10-16 | 2014-01-08 | 四川君和环保工程有限公司 | Absorption tower for wet desulfurization by calcium method |
| WO2014172860A1 (en) * | 2013-04-24 | 2014-10-30 | 江苏新世纪江南环保股份有限公司 | Method and apparatus for treating acidic tail gas by using ammonia process flue gas |
| CN105749704A (en) * | 2016-05-14 | 2016-07-13 | 张波 | Ammonium sulphite desulphurization system and process |
| CN206276230U (en) * | 2016-11-15 | 2017-06-27 | 中石化南京工程有限公司 | A kind of ammonia process of desulfurization anti-block apparatus |
| CN106943850A (en) * | 2017-04-26 | 2017-07-14 | 江苏科行环保科技有限公司 | A kind of multi-functional subregion ammonia desulfuration equipment |
| CN207385163U (en) * | 2017-09-26 | 2018-05-22 | 航天环境工程有限公司 | A kind of ammonia process of desulfurization dedusting flue gas minimum discharge system |
-
2017
- 2017-09-26 CN CN201710881132.3A patent/CN107413176A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014172860A1 (en) * | 2013-04-24 | 2014-10-30 | 江苏新世纪江南环保股份有限公司 | Method and apparatus for treating acidic tail gas by using ammonia process flue gas |
| CN103495341A (en) * | 2013-10-16 | 2014-01-08 | 四川君和环保工程有限公司 | Absorption tower for wet desulfurization by calcium method |
| CN105749704A (en) * | 2016-05-14 | 2016-07-13 | 张波 | Ammonium sulphite desulphurization system and process |
| CN206276230U (en) * | 2016-11-15 | 2017-06-27 | 中石化南京工程有限公司 | A kind of ammonia process of desulfurization anti-block apparatus |
| CN106943850A (en) * | 2017-04-26 | 2017-07-14 | 江苏科行环保科技有限公司 | A kind of multi-functional subregion ammonia desulfuration equipment |
| CN207385163U (en) * | 2017-09-26 | 2018-05-22 | 航天环境工程有限公司 | A kind of ammonia process of desulfurization dedusting flue gas minimum discharge system |
Cited By (34)
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| US10406478B2 (en) * | 2017-05-25 | 2019-09-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
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| CN108404639A (en) * | 2018-04-28 | 2018-08-17 | 中冶焦耐(大连)工程技术有限公司 | A kind of relieving haperacidity exhaust gas cleaner and technique |
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| CN109381988A (en) * | 2018-12-27 | 2019-02-26 | 山东盛宝传热科技有限公司 | A kind of device preventing ammonia process desulfuration tower Crystallization Plugging |
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| CN114618276A (en) * | 2021-12-14 | 2022-06-14 | 武汉龙净环保工程有限公司 | Ammonia desulphurization method for controlling escape of aerosol and ammonia |
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