CN209205043U - A kind of apparatus and system for sintering flue gas denitration - Google Patents
A kind of apparatus and system for sintering flue gas denitration Download PDFInfo
- Publication number
- CN209205043U CN209205043U CN201822038901.6U CN201822038901U CN209205043U CN 209205043 U CN209205043 U CN 209205043U CN 201822038901 U CN201822038901 U CN 201822038901U CN 209205043 U CN209205043 U CN 209205043U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- denitration
- ammonia
- diversion section
- sintering flue
- 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
Landscapes
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model provides a kind of apparatus and system for sintering flue gas denitration, is related to sintering gas purifying field.Device for sintering flue gas denitration includes denitration reaction device and guiding device, exhaust gases passes are offered inside denitration reaction device, exhaust gases passes have smoke inlet, guiding device includes deflector and distributor pipe, deflector and distributor pipe are all set in inside exhaust gases passes, and distributor pipe is arranged compared with deflector closer to smoke inlet.And hot-blast stove is set on the flue platform outside exhaust gases passes, flue gas-smoke heat replacing device lower section is arranged in the second blower, so that the compact occupied area of device is small, improves space utilization rate.The device for being used for sintering flue gas denitration can make flue-gas temperature be evenly distributed, and improve denitration efficiency.
Description
Technical field
The utility model relates to sintering gas purifying fields, in particular to a kind of dress for sintering flue gas denitration
It sets and system.
Background technique
Nowadays, Steel Industrial is fast-developing, has made significant contribution for China's national economy development, but also band
Come more serious atmosphere polluting problem, especially sintering process, produces the sintering flue gas of a large amount of nitrogen-containing oxides, with
Environmental Protection Situation it is increasingly serious, sintering flue gas denitration becomes more more and more urgent.
Currently, most of steel enterprise sintering factory uses flue gas purifying equipment, flue gas temperature of the sintering flue gas after desulfurization
It spends lower, flue gas temperature elevation system need to be set, flue gas is heated, and there are unstable combustions for the heating of existing flue gas temperature elevation system
Situations such as fixed, or flue-gas temperature is uneven after heating, to cause denitration efficiency lower.
Utility model content
One of the purpose of this utility model is to provide a kind of device for sintering flue gas denitration, can make flue gas temperature
Degree is evenly distributed, and improves denitration efficiency.
The another object of the utility model is to provide a kind of system for sintering flue gas denitration, can make flue gas temperature
Degree is evenly distributed, and improves denitration efficiency.
To achieve the goals above, the utility model provides a kind of technical solution:
The utility model embodiment provides a kind of device for sintering flue gas denitration, including denitration reaction device and leads
Device is flowed, exhaust gases passes are offered inside the denitration reaction device, the exhaust gases passes have smoke inlet, the water conservancy diversion dress
It sets including deflector and distributor pipe, the deflector and the distributor pipe are all set in inside the exhaust gases passes, and described point
The stringing deflector is arranged closer to the smoke inlet.
Further, the deflector includes the first diversion section, the second diversion section and third diversion section, first water conservancy diversion
Section, second diversion section and the third diversion section are set in turn in the exhaust gases passes, wherein first diversion section
Second diversion section and the third diversion section are arranged closer to the distributor pipe.
Further, the denitration reaction device includes ammonia-gas spraying device and static mixer, the ammonia-gas spraying device and described
Static mixer is all set in the inside of the exhaust gases passes, and the ammonia-gas spraying device and the static mixer are set to described
Between one diversion section and second diversion section, and the ammonia-gas spraying device static mixer is closer to first water conservancy diversion
Section setting.
Further, the device for sintering flue gas denitration further includes ammonia generation device, and the ammonia generates dress
It sets including ammonium hydroxide storage device, ammonium hydroxide conveying device, ammonia water evaporator and ammonia-flue gas mixing arrangement, the ammonium hydroxide storage dress
It sets and is connect with one end of the ammonium hydroxide conveying device, the other end of the ammonium hydroxide conveying device and one end of the ammonia water evaporator
Connection, the other end of the ammonia water evaporator are connect with one end of the ammonia-flue gas mixing arrangement, and the ammonia-flue gas is mixed
The other end set is attached together to connect with the ammonia-gas spraying device.
Further, the denitration reaction device further includes fairing and catalyst reaction device, the fairing and
The catalyst reaction device is all set in the inside of the exhaust gases passes, and is all set in the third diversion section far from described
The side of two diversion sections, wherein the fairing catalyst reaction device is arranged closer to the third diversion section.
Further, the device for sintering flue gas denitration further includes flue gas-smoke heat replacing device, and the flue gas is logical
Road has exhanst gas outlet, and one end of the flue gas-smoke heat replacing device is connect with the smoke inlet, and the flue gas-flue gas changes
The other end of thermal is connect with the exhanst gas outlet.
Further, the device for sintering flue gas denitration further includes flue gas heat riser, the flue gas heating dress
It sets including hot-blast stove and the first blower, first blower is connect with one end of the hot-blast stove, the other end of the hot-blast stove
It is connect with the distributor pipe.
Further, the device for sintering flue gas denitration further includes desulfurizer and dust-extraction unit, the desulfurization
Device is connect with one end of the dust-extraction unit, and the other end of the dust-extraction unit is connect with the smoke inlet.
The utility model embodiment additionally provides a kind of system for sintering flue gas denitration, comprising: fume extractor and use
In the device of sintering flue gas denitration.Device for sintering flue gas denitration includes denitration reaction device and guiding device, described de-
Exhaust gases passes are offered inside nitre reaction unit, the exhaust gases passes have smoke inlet, and the guiding device includes deflector
And distributor pipe, the deflector and the distributor pipe are all set in inside the exhaust gases passes, and the distributor pipe is relatively described leads
Flowing plate is arranged closer to the smoke inlet.The fume extractor is connect with the denitration reaction device.
Further, the fume extractor includes smoke-exhaust pipeline, the second blower, chimney and third blower, described for burning
The device for tying denitrating flue gas includes ammonia generation device and denitration reaction device, and the ammonia generation device includes ammonia-flue gas
Mixing arrangement, the denitration reaction device are provided with exhaust gases passes, and the exhaust gases passes have exhanst gas outlet；The smoke-exhaust pipeline
With interconnected first end, the second end and third end, one end of second blower and the exhanst gas outlet connect
It connects, the other end of second blower is connect with the first end, and the chimney is connect with the second end, the third
One end of blower is connect with the third end, and the other end of the third blower is connect with the ammonia-flue gas mixing arrangement.
Compared with the existing technology, the beneficial effect of the apparatus and system provided by the utility model for sintering flue gas denitration
It is:
A kind of apparatus and system for sintering flue gas denitration provided by the utility model, by being arranged in exhaust gases passes
Distributor pipe is arranged, so that flue gas more uniformly enters flue gas after distributor pipe in deflector at the smoke inlet of exhaust gases passes
In channel, then the guide functions through deflector, stablize the circulation of flue gas, flue-gas temperature can be made to be evenly distributed, improves denitration effect
Rate.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of the system provided by the embodiment of the utility model for sintering flue gas denitration；
Fig. 2 is the structural representation of the distributor pipe of the device provided by the embodiment of the utility model for sintering flue gas denitration
Figure；
Fig. 3 is flue gas-smoke heat replacing device of the device provided by the embodiment of the utility model for sintering flue gas denitration
Structural schematic diagram；
Fig. 4 is the structural schematic diagram of the chimney of fume extractor provided by the embodiment of the utility model.
Icon: the system that 1- is used for sintering flue gas denitration；10- is used for the device of sintering flue gas denitration；101- denitration reaction
Device；1011- exhaust gases passes；1012- smoke inlet；1013- exhanst gas outlet；102- guiding device；The first diversion section of 1021-；
The second diversion section of 1022-；1023- third diversion section；1025- distributor pipe；103- ammonia-gas spraying device；104- static mixer；105-
Ammonia generation device；1051- ammonium hydroxide storage device；1052- ammonium hydroxide conveying device；1053- ammonia water evaporator；1054- ammonia-cigarette
Gas mixing arrangement；106- fairing；107- catalyst reaction device；108- flue gas-smoke heat replacing device；109- flue gas heating dress
It sets；1091- hot-blast stove；The first blower of 1092-；110- desulfurizer；111- dust-extraction unit；20- fume extractor；21- smoke exhaust pipe
Road；211- first end；212 the second ends；213- third end；The second blower of 22-；23- chimney；24- third blower.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be understood that term " center ", "upper", "lower", "inner", "outside" etc. refer to
The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings or when utility model product uses is used
The orientation or positional relationship that the orientation or positional relationship or those skilled in the art often put usually understand, merely to
Convenient for describing the utility model and simplifying description, rather than the equipment of indication or suggestion meaning or element must have specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important
Property.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " opening up ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to removable
Connection is unloaded, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
Embodiment
Referring to Fig. 1, Fig. 1 show the knot of the system 1 provided by the embodiment of the utility model for sintering flue gas denitration
Structure schematic diagram.System 1 for sintering flue gas denitration is applied to sintering gas purifying, be a kind of processing exhaust gas with can obtain compared with
For the equipment of the flue gas of environmental protection.System 1 for sintering flue gas denitration is including fume extractor 20 and for sintering flue gas denitration
Device 10.Fume extractor 20 is mainly used for discharging the clean flue gas after denitration, and utilizes the clean cigarette after denitration simultaneously
Gas to ensure the safety of denitration, while also saving the energy as dilution wind.The master of device 10 for sintering flue gas denitration
Acting on is that sintering flue gas is carried out denitration, before this and is able to carry out desulfurization and dust collecting process.It is de- that this is used for sintering flue gas
The system 1 of nitre can make flue-gas temperature be evenly distributed, improve denitration efficiency by stablizing the circulation of flue gas.
Please continue to refer to Fig. 1, the device 10 for sintering flue gas denitration includes denitration reaction device 101 and guiding device
102, exhaust gases passes 1011 are offered inside denitration reaction device 101, exhaust gases passes 1011 have smoke inlet 1012, water conservancy diversion dress
Set 102 include deflector and distributor pipe 1025 (as shown in Fig. 2, Fig. 2 show it is provided by the embodiment of the utility model for being sintered
The structural schematic diagram of the distributor pipe 1025 of the device 10 of denitrating flue gas), deflector and distributor pipe 1025 are all set in exhaust gases passes
Inside 1011, and distributor pipe 1025 is arranged compared with deflector closer to smoke inlet 1012.
It should be noted that exhaust gases passes 1011 are generally U-shaped, and exhaust gases passes 1011 are vertically arranged, i.e., U-shaped opening
Towards ground, while U-shaped bending section is far from ground.It is understood that exhaust gases passes 1011 not only have smoke inlet
1012, while also there is exhanst gas outlet 1013.
It should be noted that in the present embodiment, distributor pipe 1025 is generally cylindrical, it is dispersed with around cylinder
Multiple gas vents, flue gas is uniformly distributed.It is understood that in other embodiments, distributor pipe 1025 can also be
Other shapes are not limited to cylinder, can also be the shapes such as oval or rectangular, need to only have makes the equally distributed effect of flue gas
?.
Deflector includes the first diversion section 1021, the second diversion section 1022 and third diversion section 1023, the first diversion section
1021, the second diversion section 1022 and third diversion section 1023 are set in turn in exhaust gases passes 1011, wherein the first diversion section
1021 are arranged compared with the second diversion section 1022 and third diversion section 1023 closer to distributor pipe 1025.Wherein, the first diversion section 1021
For the setting of multiple plate intervals, sintering flue gas is shunted, and the second diversion section 1022 and third diversion section 1023 are in bending
The plate interval of shape is arranged, and is set at the bending section of U-shaped shape of exhaust gases passes 1011, and the second diversion section 1022 and third are led
There is a situation where bias currents for avoiding sintering flue gas in bending section for stream section 1023.First diversion section 1021, the second diversion section 1022
It is used to guide the flowing of sintering flue gas with third diversion section 1023, improves the uniformity of sintering flue gas Temperature Distribution, enhancing sintering
Flue gas heat transfer and mass transport process, finally improve denitration efficiency.
It should be noted that in the present embodiment, deflector includes three sections, i.e., it is arranged in three different locations.It can be with
Understand, in other embodiments, more multistage can be set in deflector, need to only play the effect of guidance flow of flue gas i.e.
It can.
Further, denitration reaction device 101 includes ammonia-gas spraying device 103 and static mixer 104,103 He of ammonia-gas spraying device
Static mixer 104 is all set in the inside of exhaust gases passes 1011, and ammonia-gas spraying device 103 and static mixer 104 are set to first
Between diversion section 1021 and the second diversion section 1022, and ammonia-gas spraying device 103 compared with static mixer 104 closer to the first diversion section
1021 settings.
It should be noted that in the present embodiment, ammonia-gas spraying device 103 is ammonia-spraying grid, and without being limited thereto, it can also be high
Press nozzle.Ammonia-gas spraying device 103 is mixed for spraying ammonia with sintering flue gas, and static mixer 104 is used for ammonia and sintering
Flue gas is uniformly mixed, and keeps the ammonia content in sintering flue gas uniform, reduces the escaping of ammonia.
Denitration reaction device 101 further includes fairing 106 and catalyst reaction device 107, and fairing 106 and catalysis are anti-
It answers device 107 to be all set in the inside of exhaust gases passes 1011, and is all set in third diversion section 1023 far from the second diversion section
1022 side, wherein fairing 106 is arranged compared with catalyst reaction device 107 closer to third diversion section 1023.
It should be noted that in the present embodiment, fairing 106 is flow straightening grid, and without being limited thereto, need to only have whole
Stream effect.Fairing 106 is mainly used for rectifying the sintering flue gas for being mixed with ammonia, make sintering flue gas flow velocity and
Flow direction is more orderly.
It should be noted that catalyst reaction device 107 is provided with multilayer with lacunose catalyst layer, after rectified
Sintering flue gas carry out denitration reaction, obtain clean flue gas.In the present embodiment, using selective catalytic reduction (Selective
Catalytic Reduction, SCR), i.e., under the effect of the catalyst, utilize reducing agent (such as NH3, liquefied ammonia, urea) come " have
Selectivity " with the NO in flue gasXIt reacts and generates nontoxic and pollution-free N2And H2O。
Device 10 for sintering flue gas denitration further includes ammonia generation device 105, and ammonia generation device 105 includes ammonium hydroxide
Storage device 1051, ammonium hydroxide conveying device 1052, ammonia water evaporator 1053 and ammonia-flue gas mixing arrangement 1054, ammonium hydroxide storage
Device 1051 is connect with one end of ammonium hydroxide conveying device 1052, the other end and ammonia water evaporator 1053 of ammonium hydroxide conveying device 1052
One end connection, the other end of ammonia water evaporator 1053 connect with one end of ammonia-flue gas mixing arrangement 1054, ammonia-flue gas
The other end of mixing arrangement 1054 is connect with ammonia-gas spraying device 103.
It should be noted that ammonium hydroxide storage device 1051 is that ammonia is quickly made for storing a large amount of ammonium hydroxide, ammonium hydroxide
Raw material.
It should be noted that ammonia water evaporator 1053 is pressure decatizing hairdo ammonia water evaporator 1053, ammonium hydroxide and steam are in ammonium hydroxide
1053 indirect heat exchange of evaporator, ammonium hydroxide all vaporizes in evaporation process, non-wastewater discharge, and evaporation heat source is steam, steam pressure
0.4MPa-1.0MPa。
It should be noted that ammonium hydroxide conveying device 1052 be ammonium hydroxide delivery pump, ammonium hydroxide can be made to be pressurized so that ammonium hydroxide into
Enter in ammonia water evaporator 1053.
It should be noted that ammonia-flue gas mixing arrangement 1054 is by ammonia obtained by ammonia water evaporator 1053 and warp
Ammonia is diluted by the device that the clean flue gas after crossing denitration reaction is mixed with obtaining dilution wind, to ensure to take off
The safety of nitre, while also saving the energy.
Device 10 for sintering flue gas denitration further includes flue gas-smoke heat replacing device 108 (as shown in figure 3, shown in Fig. 3
For the structure of flue gas-smoke heat replacing device 108 of the device 10 provided by the embodiment of the utility model for sintering flue gas denitration
Schematic diagram), one end of flue gas-smoke heat replacing device 108 is connect with smoke inlet 1012, flue gas-smoke heat replacing device 108 it is another
One end is connect with exhanst gas outlet 1013.
It should be noted that flue gas-smoke heat replacing device 108 can effectively recovered flue gas heat, improve energy utilization rate.
Device 10 for sintering flue gas denitration further includes flue gas heat riser 109, and flue gas heat riser 109 includes hot wind
Furnace 1091 and the first blower 1092, the first blower 1092 are connect with one end of hot-blast stove 1091, the other end of hot-blast stove 1091 with
Distributor pipe 1025 connects.
It should be noted that the first blower 1092 assists the full combustion of 1091 fuel of hot-blast stove for extracting air.
It should be noted that hot-blast stove 1091 can heat up to sintering flue gas, it can be ensured that catalysis reaction is efficiently steady
Fixed operation, finally can denitration it is ultra-clean, reach emission request.Hot-blast stove 1091 is added using coke-stove gas or blast furnace gas
Heat, hot-blast stove 1091 are set to the flue gas at distributor pipe 1025 using the heat accumulating type furnace body for having refractory lining, hot-blast stove 1091
In flue platform (not shown) outside channel 1011.The high-temperature flue gas that hot-blast stove 1091 burns passes through the distribution being attached thereto
Uniformly injection is effectively mixed into sintering flue gas with sintering flue gas pipe 1025.By the hot-blast stove that different number is arranged
1091 or adjust 1091 burning load of hot-blast stove, sintering flue gas temperature after mixing can be heated between 250-350 DEG C.
The hot-blast stove 1091 can ensure that fuel stabilization burns, and fuel tolerance is stronger, and heating system is highly reliable.
It should be noted that hot-blast stove can be either multiple for one, in the present embodiment, using a hot-blast stove.It can
With understanding, a hot-blast stove can be only connected with a distributor pipe, one hot wind respectively can also be set with a distributor pipe both ends
Furnace, can also be by being arranged multiple distributor pipes to connect more hot-blast stoves.
Device 10 for sintering flue gas denitration further includes desulfurizer 110 and dust-extraction unit 111, desulfurizer 110 with
One end of dust-extraction unit 111 connects, and the other end of dust-extraction unit 111 is connect with smoke inlet 1012.
It should be noted that desulfurizer 110 and dust-extraction unit 111 reduce SO2Denitrating catalyst is made with dust
With the influence in service life and performance, it is ensured that SCR denitration has very high denitration efficiency.
It should be noted that desulfurizer 110 is desulfurizing tower, wherein desulfurizing tower is carbon steel structure, can also be resistance to for other
The material of corrosion.In desulfurizing tower, using dry method, perhaps semi-dry desulfurizing process desulfurizing agent therein uses white lime or little Su
It beats.
Please continue to refer to Fig. 1, fume extractor 20 is connect with denitration reaction device 101.
Fume extractor 20 includes smoke-exhaust pipeline 21, the second blower 22, third blower 24 and chimney 23 (as shown in figure 4, Fig. 4
It show the structural schematic diagram of the chimney 23 of fume extractor 20 provided by the embodiment of the utility model), it is used for sintering flue gas denitration
Device 10 include ammonia generation device 105 and denitration reaction device 101, ammonia generation device 105 includes the mixing of ammonia-flue gas
Device 1054, denitration reaction device 101 are provided with exhaust gases passes 1011, and exhaust gases passes 1011 have exhanst gas outlet 1013；Smoke evacuation
Pipeline 21 has interconnected first end 211, the second end 212 and third end 213, one end of the second blower 22 and cigarette
1013 connection of gas outlet, the other end of the second blower 22 are connect with first end 211, and chimney 23 is connect with the second end 212, the
One end of three blowers 24 is connect with third end 213, and the other end and ammonia-flue gas mixing arrangement 1054 of third blower 24 connect
It connects.
It should be noted that chimney 23 is substantially in truncated cone-shaped.
It should be noted that the second blower 22 is the blower of its pressurization, it can be axial flow blower or be centrifuged wind
Machine.And second blower 22 be set to the lower section of flue gas-smoke heat replacing device 108.
Denitration reaction device 101 is set to the top of flue gas-smoke heat replacing device 108, and hot-blast stove 1091 is set to flue
On platform, the second blower 22 is set to 108 lower section of flue gas-smoke heat replacing device, by integrated arrangement, greatly reduces project
Occupied area improves space utilization rate, reduces cost.
It should be noted that third blower 24 is sent into ammonia-flue gas mixing arrangement for extracting the clean flue gas after denitration
1054, ammonia is diluted.
The working principle of system 1 provided in this embodiment for sintering flue gas denitration introduced below:
Original sintering flue gas removes SO by desulfurizer 1102, then through the powder in the removal sintering flue gas of dust-extraction unit 111
Dirt.The flue gas for the exhaust gases passes 1011 that sintering flue gas after desulfurization and dedusting is opened up from 101 inside of denitration reaction device
Enter at entrance 1012, it can be with the heat of recovered flue gas by flue gas-smoke heat replacing device 108.When sintering flue gas flows through distribution
When pipe 1025, the clean high-temperature flue gas generated with hot-blast stove 1091 is mixed, to promote the temperature of sintering flue gas.With clean high temperature cigarette
The mixed sintering flue gas of gas flows through ammonia-spraying grid after 1021 water conservancy diversion of the first diversion section and mixes with ammonia, the burning after mixing ammonia
Knot flue gas flows through static mixer 104 and is sufficiently mixed, then after 1023 water conservancy diversion of the second diversion section 1022 and third diversion section
Into fairing 106, it is rectified after sintering flue gas enter catalyst reaction device 107 carry out denitration, the clean cigarette after denitration
Gas is flowed out from flue outlet again, and passes through the heat of the further recovered flue gas of flue gas-smoke heat replacing device 108.From flue outlet
The clean flue gas of outflow is extracted out by the second blower 22, and a part flows to chimney 23, is discharged from chimney 23.Another part is via
Three blowers 24 are drawn into ammonia-flue gas mixing arrangement 1054, are diluted to ammonia obtained by ammonia water evaporator 1053, dilute
Ammonia after releasing is spurted into the sintering flue gas without denitration via ammonia-gas spraying device 103 again, is further continued for after carrying out as described above
Continuous process, completes circulation.
In conclusion a kind of device 10 and system for sintering flue gas denitration provided by the utility model, by cigarette
Deflector is set in gas channel 1011, distributor pipe 1025 is set at the smoke inlet 1012 of exhaust gases passes 1011, so that flue gas
It is more uniformly entered in exhaust gases passes 1011 after distributor pipe 1025, then the guide functions through deflector, stablizes the stream of flue gas
It is logical, flue-gas temperature can be made to be evenly distributed, improve denitration efficiency.And by integrated arrangement, project construction can be greatly decreased
Required site area.The system 1 for being used for sintering flue gas denitration has denitration efficiency high, and performance is stablized, and system is simple, skill
Art is mature, and occupied area is small, at low cost, is conducive to a wide range of the advantages of promoting and applying.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of device for sintering flue gas denitration, which is characterized in that described de- including denitration reaction device and guiding device
Exhaust gases passes are offered inside nitre reaction unit, the exhaust gases passes have smoke inlet, and the guiding device includes deflector
And distributor pipe, the deflector and the distributor pipe are all set in inside the exhaust gases passes, and the distributor pipe is relatively described leads
Flowing plate is arranged closer to the smoke inlet.
2. the device according to claim 1 for sintering flue gas denitration, which is characterized in that the deflector includes first
Diversion section, the second diversion section and third diversion section, first diversion section, second diversion section and the third diversion section according to
It is secondary to be set in the exhaust gases passes, wherein the first diversion section second diversion section and the third diversion section are more
It is arranged close to the distributor pipe.
3. the device according to claim 2 for sintering flue gas denitration, which is characterized in that the denitration reaction device packet
Ammonia-gas spraying device and static mixer are included, the ammonia-gas spraying device and the static mixer are all set in the interior of the exhaust gases passes
Portion, the ammonia-gas spraying device and the static mixer are set between first diversion section and second diversion section, and institute
The ammonia-gas spraying device static mixer is stated to be arranged closer to first diversion section.
4. the device according to claim 3 for sintering flue gas denitration, which is characterized in that described de- for sintering flue gas
The device of nitre further includes ammonia generation device, and the ammonia generation device includes ammonium hydroxide storage device, ammonium hydroxide conveying device, ammonium hydroxide
Evaporator and ammonia-flue gas mixing arrangement, the ammonium hydroxide storage device are connect with one end of the ammonium hydroxide conveying device, the ammonia
The other end of water conveying device is connect with one end of the ammonia water evaporator, the other end of the ammonia water evaporator and the ammonia
The connection of gas-flue gas mixing arrangement one end, the other end of the ammonia-flue gas mixing arrangement are connect with the ammonia-gas spraying device.
5. the device according to claim 2 for sintering flue gas denitration, which is characterized in that the denitration reaction device is also
Including fairing and catalyst reaction device, the fairing and the catalyst reaction device are all set in the exhaust gases passes
Inside, and be all set in side of the third diversion section far from second diversion section, wherein the fairing is compared with institute
Catalyst reaction device is stated to be arranged closer to the third diversion section.
6. the device according to claim 1 for sintering flue gas denitration, which is characterized in that described de- for sintering flue gas
The device of nitre further includes flue gas-smoke heat replacing device, and the exhaust gases passes have exhanst gas outlet, the flue gas-flue gas heat exchange dress
The one end set is connect with the smoke inlet, and the other end of the flue gas-smoke heat replacing device is connect with the exhanst gas outlet.
7. the device according to claim 1 for sintering flue gas denitration, which is characterized in that described de- for sintering flue gas
The device of nitre further includes flue gas heat riser, and the flue gas heat riser includes hot-blast stove and the first blower, first blower
It is connect with one end of the hot-blast stove, the other end of the hot-blast stove is connect with the distributor pipe.
8. the device according to claim 1 for sintering flue gas denitration, which is characterized in that described de- for sintering flue gas
The device of nitre further includes desulfurizer and dust-extraction unit, and the desulfurizer is connect with one end of the dust-extraction unit, described to remove
The other end of dirt device is connect with the smoke inlet.
9. a kind of system for sintering flue gas denitration characterized by comprising fume extractor and such as claim 1-8 are any
The device for sintering flue gas denitration described in, the fume extractor are connect with the denitration reaction device.
10. the system according to claim 9 for sintering flue gas denitration, which is characterized in that the fume extractor includes
Smoke-exhaust pipeline, the second blower, chimney and third blower, the device for sintering flue gas denitration include ammonia generation device and
Denitration reaction device, the ammonia generation device include ammonia-flue gas mixing arrangement, and the denitration reaction device is provided with flue gas
Channel, the exhaust gases passes have exhanst gas outlet；
The smoke-exhaust pipeline has interconnected first end, the second end and third end, one end of second blower
It is connect with the exhanst gas outlet, the other end of second blower is connect with the first end, the chimney and described second
End connection, one end of the third blower are connect with the third end, the other end and the ammonia-of the third blower
Flue gas mixing arrangement connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822038901.6U CN209205043U (en) | 2018-12-05 | 2018-12-05 | A kind of apparatus and system for sintering flue gas denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822038901.6U CN209205043U (en) | 2018-12-05 | 2018-12-05 | A kind of apparatus and system for sintering flue gas denitration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209205043U true CN209205043U (en) | 2019-08-06 |
Family
ID=67463103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822038901.6U Active CN209205043U (en) | 2018-12-05 | 2018-12-05 | A kind of apparatus and system for sintering flue gas denitration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209205043U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112774437A (en) * | 2021-01-27 | 2021-05-11 | 北京首钢国际工程技术有限公司 | Full flue gas desulfurization and denitrification device and method for independent pellet plant |
| CN112892205A (en) * | 2021-01-28 | 2021-06-04 | 北京首钢国际工程技术有限公司 | Device and method for heating SCR (selective catalytic reduction) denitration flue gas by using pulverized coal furnace |
-
2018
- 2018-12-05 CN CN201822038901.6U patent/CN209205043U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112774437A (en) * | 2021-01-27 | 2021-05-11 | 北京首钢国际工程技术有限公司 | Full flue gas desulfurization and denitrification device and method for independent pellet plant |
| CN112892205A (en) * | 2021-01-28 | 2021-06-04 | 北京首钢国际工程技术有限公司 | Device and method for heating SCR (selective catalytic reduction) denitration flue gas by using pulverized coal furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105169942B (en) | Flue gas of glass melting furnace dust-removal and desulfurizing denitration coprocessing system and processing method and application | |
| CN207680368U (en) | A kind of equipment for denitrifying flue gas based on temperature-compensating | |
| CN108176221A (en) | Sintering flue gas heating and denitration equipment and sintering flue gas heating and denitration method | |
| CN209885578U (en) | Dust removal SOx/NOx control takes off white integration system | |
| CN214319745U (en) | Device for treating CO and nitrogen oxide at tail end of flue gas of sintering machine | |
| CN107115775B (en) | Iron ore sintering flue gas sectional enrichment self-heat exchange emission reduction SOxAnd NOxMethod of producing a composite material | |
| CN209205043U (en) | A kind of apparatus and system for sintering flue gas denitration | |
| CN209630986U (en) | A kind of low-temperature flue gas mixing reheating denitration coordinated desulfurization system | |
| CN208839374U (en) | A kind of middle low-temperature smoke air SCR denitrification apparatus of cement producing line | |
| CN107899413A (en) | A kind of exhaust gas of hot-blast stove desulphurization denitration cooperates with administering method | |
| CN110064288A (en) | A kind of de- dioxin dedusting integration process of flue gas desulfurization and denitrification | |
| CN206253015U (en) | Low temperature is from heat exchange type SCR denitration reaction tower | |
| CN108579360A (en) | A kind of coke oven regenerator UTILIZATION OF VESIDUAL HEAT IN couples method of denitration and device with SNCR/SCR | |
| CN208320483U (en) | Grate rotary kiln denitration system | |
| CN209530540U (en) | A kind of denitrification apparatus of gas fired-boiler | |
| CN104329946A (en) | Waste gas denitration and residual heat recovery integral system for coke oven flue | |
| CN208839373U (en) | A kind of ammonium hydroxide vaporising device for cement SCR denitration | |
| CN109589790A (en) | Ultra-low temperature liquid phase catalytic reduction denitration device | |
| CN207769554U (en) | Sintering flue gas heating and denitration equipment and sintering flue gas heating and denitration system | |
| CN206858496U (en) | A kind of activating and reducing combustion with meagre oxygen system | |
| CN108704464A (en) | Sintering flue gas desulfurization and denitrification and flue gas whitening comprehensive treatment system and process | |
| CN208090696U (en) | Regenerative Combustion System high-temperature gas jet stream mixes bellows | |
| CN110523266A (en) | A new type of power station boiler SCR denitrification system and its working method | |
| CN207734844U (en) | Middle and low temperature flue gas dust removal denitration integrated device | |
| CN109772157A (en) | Kiln tail flue gas purification system and purification method of a new dry process cement kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |