CN209475967U - Ultra-low temperature denitration device combined with dual-alkali desulfurization process - Google Patents
Ultra-low temperature denitration device combined with dual-alkali desulfurization process Download PDFInfo
- Publication number
- CN209475967U CN209475967U CN201822111916.0U CN201822111916U CN209475967U CN 209475967 U CN209475967 U CN 209475967U CN 201822111916 U CN201822111916 U CN 201822111916U CN 209475967 U CN209475967 U CN 209475967U
- Authority
- CN
- China
- Prior art keywords
- tower
- denitration
- pump
- spray thrower
- desulfurizing
- 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.)
- Active
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 59
- 230000023556 desulfurization Effects 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000003513 alkali Substances 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title abstract description 4
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 66
- 239000007921 spray Substances 0.000 claims abstract description 50
- 230000009467 reduction Effects 0.000 claims abstract description 29
- 239000000779 smoke Substances 0.000 claims abstract description 13
- 238000003860 storage Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 40
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- 238000005516 engineering process Methods 0.000 claims description 22
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 14
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 14
- 239000004571 lime Substances 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 12
- 230000008929 regeneration Effects 0.000 claims description 12
- 238000011069 regeneration method Methods 0.000 claims description 12
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 41
- 239000003546 flue gas Substances 0.000 description 31
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 28
- 238000006722 reduction reaction Methods 0.000 description 22
- 239000000047 product Substances 0.000 description 21
- 238000006243 chemical reaction Methods 0.000 description 18
- 239000007789 gas Substances 0.000 description 16
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 3
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009719 regenerative response Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses an ultra-low temperature denitrification facility that combines two alkali method desulfurization process, even there is the desulfurizing tower of smoke inlet including one side, even there is the denitration tower of denitration circulating pump, even there is the lye pond of lye pump and even there is the denitrifier storage tank of denitrifier pump, it links to the circulation tank of lye pump to have seted up the pipeline in the desulfurizing tower bottom, the circulation tank pipeline links to the desulfurization circulating pump, be equipped with in the desulfurizing tower and link to the desulfurization spray thrower of desulfurization circulating pump, circulation tank one side pipe connection has the reduction circulating pump, the top of the tower of desulfurizing tower passes through the pipe connection with the denitration tower, the direction from the bottom of the tower to the top of the tower has connected gradually the denitration spray thrower in the denitration tower, the reduction spray thrower, reduction circulating pump is connected with the reduction spray thrower, the denitration circulating pump is connected with the denitration spray throw; the utility model discloses combine together two alkali method desulfurization processes and end temperature denitration technique, simple structure, the denitration of rational utilization desulfurization product has improved desulfurization rate and denitration rate when reducing low-cost.
Description
Technical field
The utility model relates to flue gases purification fields, more specifically, it relates to a kind of combination double alkali method desulfurizing work
The ultralow temperature denitrification apparatus of skill.
Background technique
Industrial melting furnaces denitrating flue gas is the environmental protection policy that country just proposed and promoted in recent years, it is intended to protect environment, inhibit
Industry excess capacity promotes industry technology transition；But it is suitble to the matching technology of industry melting furnaces denitrating flue gas, is at home and abroad in
The development exploration stage；Industry melting furnaces denitration method for flue gas generallys use SNCR and SCR method denitration at present；SNCR method denitration is not
Under conditions of catalyst, the reducing agents such as ammonia, urea are sprayed into Boiler Furnace and carry out selective reaction with NOx, but must be
Reducing agent is added in high-temperature region, which is influenced very greatly by boiler structure size, and denitrification rate is low；SCR method denitration refers in catalyst
And under the conditions of 320~450 DEG C of reaction temperature, the reaction of nitrogen oxides in reducing agent (liquefied ammonia) and flue gas generate harmless nitrogen and
Water, to remove the NOx in flue gas, SCR method denitration efficiency is up to 70-90%；However steel-making sintering machine, nonferrous smelting fuming
Furnace, bottom convertor survey the flue-gas temperature of blown converter and coke oven all at 200 DEG C hereinafter, the temperature such as after wet desulphurization is even more to be lower than
After 60 DEG C, according to SNCR and SCR method denitration, it is also necessary to carry out heat temperature raising to flue gas, considerably increase operating cost.
Dual alkali scrubbing FGD process using sodium hydroxide solution as starting desulfurizing agent, directly beat by the sodium hydroxide solution made
Enter SO in desulfuration absorbing tower washing removing flue gas2Achieve the purpose that flue gas desulfurization, then desulfurization product is through desulfurizer regeneration pond
Be reduced into sodium hydroxide and returned in desulfurizing tower again and is recycled, but in existing double alkali method flue gas desulfurization technology, desulfurization product into
It is restored not exclusively after entering regenerated reactor, causes to reduce desulfurization degree when being recycled.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of combination double alkali method desulfurizing technologies
Ultralow temperature denitrification apparatus, have the advantages that operating cost is low and high desulphurization and denitration.
To achieve the above object, the utility model provides following technical solution:
A kind of ultralow temperature denitrification apparatus of combination double alkali method desulfurizing technology, including desulfurizing tower, denitrating tower, lye pond and denitration
Agent storage tank, the side of the desulfurizing tower tower bottom are connected with smoke inlet, and circulating slot is offered in the tower bottom of the desulfurizing tower, described to follow
One side ducts of annular groove are connected with lye pump, and the lye pump is connect with the lye pond, another side ducts connection of circulating slot
There is desulfuration recycle pump, several layers desulfurization spray thrower, the desulfurization spray thrower and the desulphurization circulating are provided in the desulfurizing tower
Pump connection, one side ducts of circulating slot are connected with reduction circulating pump, and the tower top of the desulfurizing tower and denitrating tower bottom tower are logical
Piping connection, the interior direction from tower bottom to tower top of the denitrating tower are connected with denitration spray thrower, reduction spray thrower, demisting in turn
Device and chimney, the reduction circulating pump are connect with the reduction spray thrower, and denitrating tower tower bottom side is connected with denitration circulation
Pump, the denitration circulating pump are connect with the denitration spray thrower, and the denitrfying agent storage tank is connected with denitrfying agent pump, the denitrating tower
Tower bottom side and the denitrfying agent pump connect.
So set, containing SO2And NOXIndustrial smoke enter desulfurization by being connected to the smoke inlet of desulfurizing tower tower bottom side
Tower；By lye pump from lye pond convey Lai lye fill in the circulating slot to the tower bottom for being opened in desulfurizing tower, then through desulfurization
Circulating pump is transported to desulfurization spray thrower and contains SO2And NOXIndustrial smoke contact carry out desulphurization reaction；Desulfurization spray thrower is provided with
Several layers, convenient for make desulfurization jet flow device spray doctor solution and flue gas in SO2It obtains more sufficiently reacting, realizes and improve desulfurization degree
Effect；After flue gas after the completion of desulfurization enters the tower bottom of denitrating tower by pipeline from desulfurization column overhead, by denitrfying agent pump from denitration
The denitrfying agent that the conveying of agent storage tank comes is delivered to denitration spray thrower and smoke contacts progress to denitrating tower tower bottom, then through denitration circulating pump
Denitration reaction；The flue gas for completing denitration reaction sequentially enters the reduction spray thrower of denitrating tower upper end and demister contact carries out instead
It answers, the desulfurization product liquid of reduction spray thrower is first delivered to by reduction circulating pump and flue gas reduction generates N2And H2After O, by demisting
Device passes through direct exhaust chimney qualified discharge after further purifying, and realizes the effect for improving denitrification rate；By double alkali method desulfurizing technology and bottom
Warm denitration technology combines, can be lower than 90 DEG C the case where lower completion oxynitrides removing, do not limited by flue-gas temperature
System, improves the stability of system；And overall structure is simple, rationally using desulfurization product as denitrification reducing agent, reduction it is low at
This while, improves desulfurization degree and denitrification rate；In addition, recycling in gas-liquid closing in entire production process, new three will not be generated
It is useless, it is without secondary pollution.
Further setting: vortex gas distributor is provided in the desulfurizing tower.
So set, changing flue gas using vortex gas distributor by the vortex gas distributor being arranged in desulfurizing tower
Walking manner, improve the way of contact of flue gas and doctor solution, realize and further increase the utilization rate and denitration efficiency of desulfurizing agent.
Further setting: a liter gas cap, described liter of gas are provided between the denitration spray thrower and the reduction spray thrower
Cap is connected in the denitrating tower.
So set, by the liter gas cap being arranged between denitration spray thrower and reduction spray thrower, realization is sprayed to denitration
Flue gas after drenching the spray liquid reaction of device carries out gas-liquid separation.
Further setting: further including regenerated reactor, lime stock tank and solid-liquid separator, the lime stock tank and the regenerated reactor
The connection of upper end pipeline, the bottom end of the regenerated reactor connect with the solid-liquid separator pipeline, the tower bottom of the denitrating tower with it is described
The connection of regenerated reactor upper end pipeline.
So set, denitration reduction reaction, which generates denitration product, enters in regenerated reactor and is delivered to out of lime stock tank regeneration
Regenerative response occurs for the lime slurry in pond, and the regeneration slurries after reaction, which are threaded a pipe, to be transported in solid-liquid separator, solid-liquid point
It is returned to from the regenerated liquid that device is separated and continues to participate in desulphurization reaction in desulfurizing tower；Realization reduces cost, rationally recycles de-
The function of nitre product raising desulfurization degree.
Further setting: the tower bottom of the desulfurizing tower is connect with regenerated reactor upper end pipeline.
So set, the desulfurization product in desulfurizing tower tower bottom enters regenerated reactor by pipeline and regeneration occurs for lime white instead
It answers, the regeneration slurries after reaction, which are threaded a pipe, to be transported in solid-liquid separator, and the regenerated liquid that solid-liquid separator is separated returns to
Desulphurization reaction is continued to participate in desulfurizing tower；Realization reduces cost, rationally recycles the function that desulfurization product improves desulfurization degree.
Further setting: the bottom end of the solid-liquid separator is connected with intermediate pool, and the intermediate pool side is connected with filters pressing
Pump, the output end of the filter pressing pump are connected with filter press.
So set, the underflow that solid-liquid separator is separated is transported in filter press through intermediate pool, filter pressing pump, through filters pressing
Desulphurization denitration product is separated sale by machine, and filtrate then returns to desulfurizing tower and continues to participate in desulphurization reaction, is improved desulfurization and is taken off
The utilization rate of nitre product.
Further setting: the filter press pipeline is connected with reservoir, and the side of the reservoir is connected with regeneration liquid pump,
Regenerated liquid pump line road is connected to the circulating slot side.
So set, the filtrate after filter press filters pressing is after reservoir further filters, by being connected to reservoir one
The regeneration liquid pump of side enters in circulating slot, further increases into the desulfurizing agent quality in circulating slot.
Further setting: two layers of primary demister is provided in the desulfurizing tower.
So set, by be set in desulfurizing tower two layers primary demister, realize that the flue gas to desulfurization in it carries out
Preliminary purification.
Further setting: agitating device is provided in the regenerated reactor.
So set, playing connects desulphurization and denitration product sufficiently with lime white by the agitating device for being set to regenerated reactor
Touching reaction.
In conclusion the utility model combines double alkali method desulfurizing technology and bottom temperature denitration technology, 90 can be lower than
DEG C the case where lower completion oxynitrides removing, do not limited by flue-gas temperature, improve the stability of system；And whole knot
Structure is simple, rationally using desulfurization product as denitrification reducing agent, improves desulfurization degree and denitrification rate while reducing low cost；Separately
Outside, it is recycled in gas-liquid closing in entire production process, the new three wastes will not be generated, it is without secondary pollution.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
In figure: 1, desulfurizing tower；2, denitrating tower；3, lye pond；4, denitrfying agent storage tank；5, smoke inlet；6, circulating slot；7, lye
Pump；8, desulfuration recycle pump；9, desulfurization spray thrower；10, circulating pump is restored；11, denitration spray thrower；12, spray thrower is restored；13, it removes
Day with fog；14, chimney；15, denitration circulating pump；16, denitrfying agent pumps；17, vortex gas distributor；18, gas cap is risen；19, it regenerates
Pond；20, lime stock tank；21, solid-liquid separator；22, intermediate pool；23, filter pressing pump；24, filter press；25, reservoir；26, it regenerates
Liquid pump；27, primary demister；28, agitating device.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
A kind of ultralow temperature denitrification apparatus of the combination double alkali method desulfurizing technology of the utility model, as shown in Fig. 1, including it is de-
The tower top of sulphur tower 1, denitrating tower 2, lye pond 3 and denitrfying agent storage tank 4, desulfurizing tower 1 is connect with 2 bottom tower of denitrating tower by pipeline, is taken off
Nitre agent storage tank 4 is connected with denitrfying agent pump 16, and the tower bottom side of denitrating tower 2 is connect with denitrfying agent pump 16.
As shown in Figure 1, the side of 1 tower bottom of desulfurizing tower is connected with smoke inlet 5；Vortex gas distribution is provided in desulfurizing tower 1
Device 17；Two layers of primary demister 27 is provided in desulfurizing tower 1；Circulating slot 6,6 side of circulating slot are offered in the tower bottom of desulfurizing tower 1
Pipeline is connected with reduction circulating pump 10, and 6 one side ducts of circulating slot are connected with lye pump 7, and lye pump 7 connect with lye pond 3, follows
Another side ducts of annular groove 6 are connected with desulfuration recycle pump 8, and several layers desulfurization spray thrower 9, desulfurization spray thrower 9 are provided in desulfurizing tower 1
It is connect with desulfuration recycle pump 8；
As shown in Figure 1, the direction in denitrating tower 2 from tower bottom to tower top is connected with denitration spray thrower 11, reduction spray in turn
Device 12, demister 13 and chimney 14, reduction circulating pump 10 are connect with reduction spray thrower 12, and 2 tower bottom side of denitrating tower is connected with de-
Nitre circulating pump 15, denitration circulating pump 15 are connect with denitration spray thrower 11；It is set between denitration spray thrower 11 and reduction spray thrower 12
It is equipped with liter gas cap 18, gas cap 18 is risen and is connected in denitrating tower 2.
As shown in Figure 1, further include regenerated reactor 19, lime stock tank 20 and solid-liquid separator 21, lime stock tank 20 and regenerated reactor
The connection of 19 upper end pipelines, the bottom end of regenerated reactor 19 are connect with 21 pipeline of solid-liquid separator, in the tower bottom and regenerated reactor 19 of denitrating tower 2
The connection of end pipe road；The tower bottom of desulfurizing tower 1 is connect with 19 upper end pipeline of regenerated reactor；Agitating device 28 is provided in regenerated reactor 19.Gu
The bottom end of liquid/gas separator 21 is connected with intermediate pool 22, and 22 side of intermediate pool is connected with filter pressing pump 23, and the output end of filter pressing pump 23 connects
It is connected to filter press 24,24 pipeline of filter press is connected with reservoir 25, and the side of reservoir 25 is connected with regeneration liquid pump 26, regenerated liquid
It pumps 26 pipelines and is connected to 6 side of circulating slot.
Working principle: contain SO2And NOXIndustrial smoke by be connected to the smoke inlet 5 of 1 tower bottom side of desulfurizing tower enter it is de-
Sulphur tower 1；By lye pump 7 from lye pond 3 convey Lai lye fill to the circulating slot 6 in the tower bottom for being opened in desulfurizing tower 1, then
Desulfurization spray thrower 9 is transported to through desulfuration recycle pump 8 and contains SO2And NOXIndustrial smoke contact carry out desulphurization reaction；Desulfurization spray
Device 9 is provided with several layers, and SO2 obtains more sufficiently reacting in the doctor solution and flue gas convenient for making the ejection of desulfurization jet flow device, and realization mentions
The effect of high desulfurization rate；Flue gas after the completion of desulfurization is realized by two layers be set in desulfurizing tower 1 primary demister 27 to de-
Flue gas after the completion of sulphur carries out preliminary purification.Flue gas after preliminary purification enters denitrating tower 2 by pipeline from 1 tower top of desulfurizing tower
After tower bottom, by denitrfying agent pump 16 from denitrfying agent storage tank 4 convey Lai denitrfying agent to 2 tower bottom of denitrating tower, then through denitration circulating pump 15
It is delivered to denitration spray thrower 11 and smoke contacts carries out denitration reaction；The flue gas for completing denitration reaction passes through in denitration spray thrower 11
The liter gas cap 18 being arranged between reduction spray thrower 12, realizes and carries out to the flue gas after reacting with the spray liquid of denitration spray thrower 11
Gas-liquid separation.Then, the reduction spray thrower 12 and the contact of demister 13 for sequentially entering 2 upper end of denitrating tower are reacted, first by also
Former circulating pump 10 is delivered to the desulfurization product liquid of reduction spray thrower 12 and flue gas reduction generates N2And H2After O, by demister 13 into
By 14 qualified discharge of direct exhaust chimney after the purification of one step, the effect for improving denitrification rate is realized；By double alkali method desulfurizing technology and bottom temperature
Denitration technology combines, can be lower than 90 DEG C the case where lower completion oxynitrides removing, do not limited by flue-gas temperature,
Improve the stability of system；And overall structure is simple, rationally using desulfurization product as denitrification reducing agent, reduces low cost
Desulfurization degree and denitrification rate are improved simultaneously；In addition, recycling in gas-liquid closing in entire production process, the new three wastes will not be generated,
It is without secondary pollution.
In addition, changing flue gas using vortex gas distributor 17 by the vortex gas distributor 17 being arranged in desulfurizing tower 1
Walking manner, improve the way of contact of flue gas and doctor solution, realize and further increase the utilization rate and denitration efficiency of desulfurizing agent；
The desulfurization product that denitration reduction reaction generates denitration product and 1 tower bottom of desulfurizing tower enters in regenerated reactor 19 and from lime stock tank 20
Regenerative response occurs for the lime slurry being inside delivered in regenerated reactor 19, and the regeneration slurries after reaction, which are threaded a pipe, was transported to solid-liquid point
From in device 21, the regenerated liquid that solid-liquid separator 21 is separated returns in desulfurizing tower 1 and continues to participate in desulphurization reaction；Realize reduce at
This, recycles denitration product and desulfurization product rationally to improve the function of desulfurization degree；Solid-liquid separator 21 is separated dense
Slurry is transported in filter press 24 through intermediate pool 22, filter pressing pump 23, and desulphurization denitration product is separated sale through filter press 24, is mentioned
The utilization rate of high desulfurization and denitration product；Filtrate after 24 filters pressing of filter press passes through company after reservoir 25 further filtering
The regeneration liquid pump 26 for being connected to 25 side of reservoir enters in circulating slot 6, further increases into the desulfurizing agent matter in circulating slot 6
Amount.By being set to the agitating device 28 of regenerated reactor 19, playing, which comes into full contact with desulphurization and denitration product with lime white, reacts；This
Utility model also uses DSC control system to be precisely controlled, it is ensured that reduces operating cost in the case where tail gas NOx emission compliance.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (9)
1. a kind of ultralow temperature denitrification apparatus of combination double alkali method desulfurizing technology, it is characterised in that: including desulfurizing tower, denitrating tower, alkali
Liquid pool and denitrfying agent storage tank, the side of the desulfurizing tower tower bottom are connected with smoke inlet, offer and follow in the tower bottom of the desulfurizing tower
Annular groove, one side ducts of circulating slot are connected with lye pump, and the lye pump is connect with the lye pond, and the circulating slot is another
Side ducts are connected with desulfuration recycle pump, and several layers desulfurization spray thrower, the desulfurization spray thrower and institute are provided in the desulfurizing tower
Desulfuration recycle pump connection is stated, one side ducts of circulating slot are connected with reduction circulating pump, and the tower top of the desulfurizing tower takes off with described
Nitre tower bottom tower is connected by pipeline, and the direction in the denitrating tower from tower bottom to tower top is connected with denitration spray thrower, reduction in turn
Spray thrower, demister and chimney, the reduction circulating pump are connect with the reduction spray thrower, the connection of denitrating tower tower bottom side
There is denitration circulating pump, the denitration circulating pump is connect with the denitration spray thrower, and the denitrfying agent storage tank is connected with denitrfying agent pump,
The tower bottom side of the denitrating tower and denitrfying agent pump connect.
2. a kind of ultralow temperature denitrification apparatus of combination double alkali method desulfurizing technology according to claim 1, it is characterised in that: institute
It states and is provided with vortex gas distributor in desulfurizing tower.
3. a kind of ultralow temperature denitrification apparatus of combination double alkali method desulfurizing technology according to claim 1, it is characterised in that:
A liter gas cap is provided between the denitration spray thrower and the reduction spray thrower, described liter of gas cap is connected in the denitrating tower.
4. a kind of ultralow temperature denitrification apparatus of combination double alkali method desulfurizing technology according to claim 1, it is characterised in that: also
Including regenerated reactor, lime stock tank and solid-liquid separator, the lime stock tank is connect with regenerated reactor upper end pipeline, the regeneration
The bottom end in pond is connect with the solid-liquid separator pipeline, and the tower bottom of the denitrating tower is connect with regenerated reactor upper end pipeline.
5. a kind of ultralow temperature denitrification apparatus of combination double alkali method desulfurizing technology according to claim 4, it is characterised in that: institute
The tower bottom for stating desulfurizing tower is connect with regenerated reactor upper end pipeline.
6. a kind of ultralow temperature denitrification apparatus of combination double alkali method desulfurizing technology according to claim 4, it is characterised in that: institute
The bottom end for stating solid-liquid separator is connected with intermediate pool, and the intermediate pool side is connected with filter pressing pump, the output end of the filter pressing pump
It is connected with filter press.
7. a kind of ultralow temperature denitrification apparatus of combination double alkali method desulfurizing technology according to claim 6, it is characterised in that: institute
It states filter press pipeline and is connected with reservoir, the side of the reservoir is connected with regeneration liquid pump, the connection of regenerated liquid pump line road
In the circulating slot side.
8. a kind of ultralow temperature denitrification apparatus of combination double alkali method desulfurizing technology according to claim 1, it is characterised in that: institute
It states and is provided with two layers of primary demister in desulfurizing tower.
9. a kind of ultralow temperature denitrification apparatus of combination double alkali method desulfurizing technology according to claim 4, it is characterised in that: institute
It states and is provided with agitating device in regenerated reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822111916.0U CN209475967U (en) | 2018-12-17 | 2018-12-17 | Ultra-low temperature denitration device combined with dual-alkali desulfurization process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822111916.0U CN209475967U (en) | 2018-12-17 | 2018-12-17 | Ultra-low temperature denitration device combined with dual-alkali desulfurization process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209475967U true CN209475967U (en) | 2019-10-11 |
Family
ID=68127488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822111916.0U Active CN209475967U (en) | 2018-12-17 | 2018-12-17 | Ultra-low temperature denitration device combined with dual-alkali desulfurization process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209475967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589766A (en) * | 2018-12-17 | 2019-04-09 | 湖北蔚天环保科技有限公司 | Ultra-low temperature denitration device combined with dual-alkali desulfurization process |
-
2018
- 2018-12-17 CN CN201822111916.0U patent/CN209475967U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589766A (en) * | 2018-12-17 | 2019-04-09 | 湖北蔚天环保科技有限公司 | Ultra-low temperature denitration device combined with dual-alkali desulfurization process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102512927B (en) | Integrated flue gas desulfurizing and denitrating purification system and purification technology for same | |
| CN107551813B (en) | Ship desulfurization and denitrification integrated process and device | |
| CN103480272A (en) | Dust-removing, denitration and desulfurization process and device for flue gas of glass kiln | |
| CN104324575B (en) | A kind of system of spray absorber formula sintering flue gas and desulfurizing and denitrifying | |
| CN104906937A (en) | Flue gas desulfurization and denitrification device and method of coal fired boiler | |
| CN104941410A (en) | Flue gas desulfurization and denitrification integrated method and device based on two-step oxidation process of active molecules O3 at low temperature | |
| CN103961996A (en) | Fume purification system with tower box | |
| CN202113765U (en) | Boiler fume treatment system | |
| CN105013315A (en) | Wet method flue gas desulphurization denitration dedusting integration system | |
| CN103977664A (en) | Flue gas desulfurization, denitration and dust removal method | |
| CN105148697A (en) | Flue gas desulfurization and denitrification system | |
| CN202893175U (en) | Flue gas desulfurization and denitrification integrated device of sintering machine | |
| CN102847430B (en) | System and technology for cleaning flue gas | |
| CN105032173A (en) | Device and process of ammonia-soda-process combined desulfurization and denitrification | |
| CN209475967U (en) | Ultra-low temperature denitration device combined with dual-alkali desulfurization process | |
| CN201889155U (en) | Removal device for sulfur dioxide in smoke | |
| CN206762618U (en) | A kind of dry-wet integratedization desulfuring and denitrifying apparatus | |
| CN102614768B (en) | Desulfurization reactor device | |
| CN204911188U (en) | Flue gas desulfurization deNOx systems | |
| CN204469519U (en) | A kind of flue gas desulfurization denitration dust-removing integrated device | |
| CN109589766A (en) | Ultra-low temperature denitration device combined with dual-alkali desulfurization process | |
| CN203899437U (en) | Tower tank fume gas purification system | |
| CN203389527U (en) | Low-temperature multi-effect flue gas treatment device | |
| CN209475965U (en) | Ultralow-temperature denitration device combined with lime-gypsum desulfurization process | |
| CN108636037A (en) | A kind of catalytic cracking flue gas wet desulphurization denitration dust collecting technique and system and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |