CN113769582A - Ammonia water evaporator device for kiln denitration - Google Patents
Ammonia water evaporator device for kiln denitration Download PDFInfo
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- CN113769582A CN113769582A CN202111245666.XA CN202111245666A CN113769582A CN 113769582 A CN113769582 A CN 113769582A CN 202111245666 A CN202111245666 A CN 202111245666A CN 113769582 A CN113769582 A CN 113769582A
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- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 title claims abstract description 155
- 235000011114 ammonium hydroxide Nutrition 0.000 title claims abstract description 155
- 238000001704 evaporation Methods 0.000 claims abstract description 23
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000008020 evaporation Effects 0.000 claims abstract description 22
- 239000003546 flue gas Substances 0.000 claims abstract description 22
- 239000007921 spray Substances 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 72
- 229910021529 ammonia Inorganic materials 0.000 abstract description 29
- 230000008016 vaporization Effects 0.000 abstract description 11
- 238000009834 vaporization Methods 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000006200 vaporizer Substances 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000004134 energy conservation Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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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
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- 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
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides an ammonia evaporator device for kiln denitration. The ammonia evaporator device for kiln denitration includes: the ammonia water evaporator comprises an ammonia water evaporator shell, wherein the top of the ammonia water evaporator shell is fixedly connected with an ammonia water evaporator inlet for flue gas after denitration treatment to enter, the outer surface of the ammonia water evaporator shell is fixedly connected with an ammonia water evaporator support provided with a spray gun, and the bottom of the ammonia water evaporator shell is provided with an ammonia water evaporator outlet for gas to be sent out. Through installing this kind of aqueous ammonia evaporation vaporizer device additional, the evaporation vaporization ability and the mixed reaction efficiency of aqueous ammonia have been improved greatly, can satisfy the operation requirement of the required a large amount of aqueous ammonia evaporation vaporization of flue gas of higher concentration, the aqueous ammonia consumption has been reduced, do not produce new pollution sources, the optimization has promoted the denitrification facility system, simultaneously can be less than the demand that satisfies the ammonia escape standard far away, accord with the actual demand that meets in the current denitration engineering, satisfy environmental protection and energy saving's demand.
Description
Technical Field
The invention relates to the technical field of kiln flue gas denitration, in particular to an ammonia evaporator device for kiln denitration.
Background
The kiln or furnace means a furnace for firing ceramic ware and sculptures or fusing enamel to the surface of metal ware.
The denitration technology of the kiln flue gas mainly adopts a denitration mode of catalyzing by using a catalyst and using ammonia gas as a denitration reactant within a temperature range meeting the use temperature of the catalyst, wherein the ammonia gas serving as the denitration reactant of the denitration device is mainly formed by evaporating and vaporizing ammonia water.
Because a large amount of heat is needed for vaporizing a large amount of ammonia water required for denitration, if high-temperature flue gas discharged by a kiln is used for heating and vaporizing, the heat is not enough to sufficiently evaporate and vaporize the required ammonia water, the ammonia water sprayed by the denitration spray gun cannot be sufficiently vaporized, the amount of ammonia gas participating in denitration reaction is not enough to react by required amount, the phenomena of low utilization efficiency and low denitration efficiency of the denitration agent are caused, the designed denitration efficiency cannot be finally reached, and the requirement of the consumption amount of the denitration agent cannot be met, the ammonia water spraying amount can be increased if the denitration efficiency is required to be reached, the ammonia water amount which cannot be vaporized can be increased by excessive sprayed ammonia water, vicious circle is formed, part of excessive unreacted ammonia water can be discharged through a rear flue blow-off valve finally, corrosion can be caused to a rear part and a flue gas contact part, the wastewater discharge point of the unreacted ammonia water is increased, and the ammonia escape value of the denitration device is easily caused to exceed the discharge standard.
Therefore, it is necessary to provide an ammonia evaporator device for kiln denitration to solve the above technical problems.
Disclosure of Invention
The invention provides an ammonia evaporator device for kiln denitration, which solves the problems that excessive pollution is easily caused to the environment during kiln denitration, and the requirements for energy conservation and emission reduction are not met.
In order to solve the technical problem, the ammonia water evaporator device for kiln denitration provided by the invention comprises: the ammonia water evaporator comprises an ammonia water evaporator shell, wherein the top of the ammonia water evaporator shell is fixedly connected with an ammonia water evaporator inlet through which flue gas enters after denitration treatment, the outer surface of the ammonia water evaporator shell is fixedly connected with an ammonia water evaporator support provided with a spray gun, the bottom of the ammonia water evaporator shell is provided with an ammonia water evaporator outlet used for gas to be sent out, the inside of the ammonia water evaporator shell is fixedly provided with a heat exchange evaporation mixing device, the heat exchange evaporation mixing device comprises a tube array layout heat exchange tube, the top and the bottom of the heat exchange tube are respectively and fixedly connected with a top heat exchange tube plate and a bottom heat exchange tube plate, and the upper fixedly connected with a steam interface and a condensate water interface of the heat exchange tube.
Preferably, three conveying pipelines for conveying external ammonia water to the interior of the ammonia water evaporator shell are arranged on the ammonia water evaporator shell and below the ammonia water evaporator bracket.
Preferably, the heat exchange tube is arranged inside the ammonia water evaporator shell, and the top heat exchange tube plate and the bottom heat exchange tube plate are both fixedly connected with the inner surface of the ammonia water evaporator shell.
Preferably, the steam interface and the condensate interface are both located on the same side and penetrate through the ammonia water evaporator shell.
Preferably, the outside of the ammonia water evaporator shell is provided with an access manhole for workers to enter the inside of the ammonia water evaporator shell.
Preferably, the ammonia water evaporator further comprises a first-stage conveying device, a second-stage conveying device and a third-stage conveying device which are respectively fixed on the three conveying pipelines, wherein the second-stage conveying device, the first-stage conveying device and the third-stage conveying device are arranged from top to bottom and are located inside the shell of the ammonia water evaporator.
Preferably, the first-stage conveying device comprises an annular pipeline, a plurality of branch pipes are fixedly connected to the inner surface of the annular pipeline, a high-pressure spray head is fixedly connected to one end of each branch pipe, and the annular pipeline is fixed to the inner surface of the shell of the ammonia water evaporator and one of the branch pipes is communicated with the conveying pipeline.
Preferably, second grade conveyor is including dividing the flow ball, four shunt tubes of fixedly connected with on the flow ball, the bottom fixedly connected with atomizer of shunt tubes, the flow ball is fixed in one of them pipeline's one end.
Preferably, the third-stage conveying device comprises a connecting pipe which is bent upwards, a flow guide pipe which is bent downwards is fixedly connected to the top of the connecting pipe, a water leakage pipe is fixedly connected to one end of the flow guide pipe, a plurality of water leakage holes are uniformly formed in the water leakage pipe, a protective outer cover is fixedly connected to the outer surface of the connecting pipe, and the connecting pipe is fixed to one end of the conveying pipeline.
Preferably, the atomizing nozzles and the high-pressure nozzles are arranged in a staggered mode, and the connecting pipe is located in the center of the interior of the ammonia water evaporator shell.
Compared with the related art, the ammonia water evaporator device for kiln denitration provided by the invention has the following beneficial effects:
the invention provides an ammonia water evaporator device for kiln denitration, which greatly improves the evaporation vaporization capacity and mixing reaction efficiency of ammonia water by additionally arranging the ammonia water evaporation vaporizer device, can meet the use requirement of evaporation vaporization of a large amount of ammonia water required by flue gas with higher concentration, simultaneously reduces the ammonia water loss caused by the fact that the sprayed ammonia water is not evaporated and vaporized due to the improvement of the evaporation vaporization capacity and mixing reaction efficiency, thereby greatly reducing the spraying amount and consumption of ineffective ammonia water, leading well-mixed ammonia gas to enter a denitration device more uniformly, improving the denitration efficiency of the denitration device, reducing the operating cost of the denitration device, solving the problem of generating discharged ammonia water sewage, greatly improving the use reaction proportion of materials, reducing the consumption of ammonia water, not generating new pollution sources, optimizing and improving a denitration device system, thereby reducing the operating cost, meanwhile, the method can be far lower than the requirement for meeting the ammonia escape standard, meets the actual requirement in the current denitration engineering, meets the requirements of environmental protection and energy conservation, and achieves the win-win effect of environmental protection, energy conservation and emission reduction.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of an ammonia water evaporator device for kiln denitration provided by the invention;
FIG. 2 is a schematic structural view of a top portion of the ammonia evaporator bracket shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a part of the heat exchange evaporation mixing device shown in FIG. 1;
FIG. 4 is a top view of the heat exchange evaporative mixing apparatus shown in FIG. 3;
FIG. 5 is a schematic structural diagram of a second embodiment of an ammonia water evaporator device for denitration of a kiln, provided by the invention;
FIG. 6 is a schematic perspective view of the primary mixing device portion of FIG. 5;
FIG. 7 is a schematic structural view of a bottom portion of the primary mixing device of FIG. 6;
fig. 8 is a schematic structural view of a portion of the three-stage mixing device shown in fig. 7.
Reference numbers in the figures:
1. the ammonia water evaporator comprises an ammonia water evaporator shell, 2, an ammonia water evaporator inlet, 3, an ammonia water evaporator support, 4 and an ammonia water evaporator outlet;
5. the device comprises a mixing device 51, heat exchange tubes 52, a top heat exchange tube plate 53, a bottom heat exchange tube plate 54, a steam interface 55, a condensate water interface 56 and a baffle plate;
6. a conveying pipeline 7 and an inspection manhole;
8. the system comprises a primary conveying device 81, an annular pipeline 82, a shunt branch pipe 83 and a high-pressure spray head;
9. a secondary conveying device 91, a shunt ball 92, a shunt pipe 93 and an atomizing nozzle;
10. three-stage conveying device 101, connecting pipes 102, guide pipes 103, water leakage pipes 104, water leakage holes 105 and a protective outer cover.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
First embodiment
Please refer to fig. 1, fig. 2, fig. 3, and fig. 4 in combination, wherein fig. 1 is a schematic structural diagram of a first embodiment of an ammonia water evaporator apparatus for kiln denitration according to the present invention; FIG. 2 is a schematic structural view of a top portion of the ammonia evaporator bracket shown in FIG. 1; FIG. 3 is a schematic structural diagram of a part of the heat exchange evaporation mixing device shown in FIG. 1;
fig. 4 is a top view of the heat exchange evaporative mixing apparatus shown in fig. 3. The ammonia evaporator device for kiln denitration includes: the ammonia water evaporator comprises an ammonia water evaporator shell 1, wherein the top of the ammonia water evaporator shell 1 is fixedly connected with an ammonia water evaporator inlet 2 used for enabling flue gas after denitration treatment to enter, the outer surface of the ammonia water evaporator shell 1 is fixedly connected with an ammonia water evaporator support 3 provided with a spray gun, an ammonia water evaporator outlet 4 used for sending gas out is arranged at the bottom of the ammonia water evaporator shell 1, a heat exchange evaporation mixing device 5 is fixedly mounted inside the ammonia water evaporator shell 1, the heat exchange evaporation mixing device 5 comprises a tube type layout heat exchange tube 51, the top and the bottom of the heat exchange tube 51 are respectively fixedly connected with a top heat exchange tube plate 52 and a bottom heat exchange tube plate 53, a steam interface 54 and a condensate water interface 55 are fixedly connected with the heat exchange tube 51, and a baffle plate 56 is arranged on the heat exchange tube 51.
The shell of the ammonia water evaporator shell 1 is tower-type, so that flue gas subjected to denitration treatment can conveniently enter the ammonia water evaporator 1 from the ammonia water evaporator inlet 2 at the top, and an ammonia water evaporator support is respectively arranged at the positions of the ammonia water evaporator inlet 2 and the ammonia water evaporator outlet 4.
And three conveying pipelines 6 for conveying external ammonia water to the interior of the ammonia evaporator shell 1 are arranged on the ammonia evaporator shell 1 and below the ammonia evaporator bracket 3.
The delivery pipe 6 may be connected to an external pipe by a flange, and one end of the delivery pipe 6 is extended into the inside of the ammonia water evaporator 1.
The heat exchange tube 51 is arranged inside the ammonia water evaporator shell 1, and the top heat exchange tube plate 52 and the bottom heat exchange tube plate 53 are both fixedly connected with the inner surface of the ammonia water evaporator shell 1.
The heat exchange tubes 51 are fixed inside the ammonia evaporator shell 1 by the top heat exchange tube plate 52 and the bottom heat exchange tube plate 53.
The vapor interface 54 and the condensate interface 55 are both located on the same side and pass through the ammonia evaporator housing 1.
And an inspection manhole 7 used for workers to enter the ammonia evaporator shell 1 is arranged outside the ammonia evaporator shell 1.
The outside of the inspection manhole 7 can be opened and closed, which is convenient for the working personnel to enter the inside of the ammonia evaporator shell 1
The working principle of the ammonia water evaporator device for kiln denitration provided by the invention is as follows:
firstly, introducing a part of kiln flue gas treated by a denitration device into an ammonia evaporator device 1 through a pipeline and an ammonia evaporator inlet 2, introducing high-temperature flue gas into an ammonia evaporator shell 1, then passing through the position of an ammonia evaporator bracket 3 provided with a denitration spray gun, wherein the area is under the combined action of an external ammonia water conveying pump and compressed air, the spray gun conveys ammonia water into the ammonia evaporator shell 1 through a conveying pipeline 6, the ammonia water is mixed with the high-temperature flue gas in the area, then the ammonia water enters the area of a heat exchange evaporation mixing device 5 in the ammonia evaporator shell 1, the heat exchange evaporation mixing device passes through a heat exchange pipe 51 with a tubular layout, the heat flue gas mixed with the ammonia water passes through the inside of the heat exchange pipe 51, the outside is high-temperature steam, heat transfer is carried out through the pipe wall of the heat exchange pipe 51, and the heat of the high-temperature steam is transferred to the ammonia water mixed flue gas through the pipe wall of the heat exchange pipe 51, therefore, the ammonia water mixed flue gas obtains a large amount of heat, the required ammonia water is fully evaporated and vaporized, the heat exchange tubes 51 of the heat exchange evaporation mixing device 5 are uniformly distributed, the evaporated and vaporized ammonia gas can be fully and uniformly mixed with the high-temperature flue gas, and finally the ammonia gas is sent out through the outlet 4 of the ammonia water evaporator, is pressurized by the booster fan after being sent out through the outlet 4 of the ammonia water evaporator, and is sent into the inside of the denitration device through a pipeline to participate in the denitration reaction.
Compared with the related art, the ammonia water evaporator device for kiln denitration provided by the invention has the following beneficial effects:
by additionally arranging the ammonia water evaporation vaporizer device, the evaporation vaporization capacity and the mixed reaction efficiency of ammonia water are greatly improved, the use requirement of evaporation vaporization of a large amount of ammonia water required by flue gas with higher concentration can be met, meanwhile, the ammonia water loss caused by that the sprayed ammonia water is not evaporated and vaporized is reduced due to the improvement of the evaporation vaporization capacity and the mixed reaction efficiency, so that the spraying amount and the consumption amount of invalid ammonia water are greatly reduced, well-mixed ammonia gas enters a denitration device more uniformly, the denitration efficiency of the denitration device is improved, the operation cost of the denitration device is reduced, the problem of generating discharged ammonia water sewage is solved, the use reaction proportion of materials is greatly improved, the consumption amount of the ammonia water is reduced, a new pollution source is not generated, a denitration device system is optimized and improved, the operation cost is reduced, and meanwhile, the requirement of meeting the ammonia escape standard can be far lower, the method meets the actual requirements met in the current denitration engineering, meets the requirements of environmental protection and energy conservation, and achieves the win-win of environmental protection, energy conservation and emission reduction.
Second embodiment
Referring to fig. 5 to 8, based on the ammonia water evaporator device for kiln based denitration provided in the first embodiment of the present application, a second embodiment of the present application provides another ammonia water evaporator device for kiln based denitration. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the difference between the ammonia water evaporator device for kiln-based denitration provided in the second embodiment of the present application is that the ammonia water evaporator device for kiln-based denitration further includes
The ammonia water evaporator comprises a primary conveying device 8, a secondary conveying device 9 and a tertiary conveying device 10 which are respectively fixed on three conveying pipelines 6, wherein the secondary conveying device 9, the primary conveying device 8 and the tertiary conveying device 10 are arranged from top to bottom and are positioned in the ammonia water evaporator shell 1.
One-level conveyor 8 includes annular duct 81, a plurality of reposition of redundant personnel branch pipes 82 of internal surface fixedly connected with of annular duct 81, the one end fixedly connected with high pressure nozzle 83 of reposition of redundant personnel branch pipe 82, annular duct 81 is fixed in internal surface and one of them of ammonia evaporator casing 1 pipeline 6 intercommunication.
Ammonia can be fed into the annular conduit 81 through the delivery conduit 6.
The ammonia may be delivered to diverter ball 91 through delivery conduit 6.
The three-stage conveying device 10 comprises a connecting pipe 101 which is bent upwards, a guide pipe 102 which is bent downwards is fixedly connected to the top of the connecting pipe 101, a water leakage pipe 103 is fixedly connected to one end of the guide pipe 102, a plurality of water leakage holes 104 are uniformly formed in the water leakage pipe 103, a protective outer cover 105 is fixedly connected to the outer surface of the connecting pipe 101, and the connecting pipe 101 is fixed to one end of the conveying pipeline 6.
The ammonia water can be conveyed to the connecting pipe 101 through the conveying pipeline, and the ammonia water flowing down from the upper part to the inside of the connecting pipe 101 can be avoided through the guide pipe 102 bent downwards.
The atomizing spray heads 93 and the high-pressure spray heads 83 are arranged in a staggered mode, and the connecting pipe 101 is located in the center of the interior of the ammonia water evaporator shell 1.
The atomizing nozzles 93 and the high-pressure nozzles 83 are equal in number, but are not located at the same level and in the vertical direction.
The working principle of the ammonia water evaporator device for kiln denitration provided by the invention is as follows:
the ammonia water entering the annular pipeline 81 can be sprayed out through the shunt pipe 92 and the atomizing nozzle 93 and uniformly sprayed inside the ammonia water evaporator 1, and the ammonia water entering the shunt ball 91 can be sprayed out through the shunt pipe 92 and the atomizing nozzle 93 and sprayed to the area above the annular pipeline 81 and between two adjacent high-pressure nozzles 83, wherein the area which cannot be sprayed by the high-pressure nozzles 83 is sprayed.
The ammonia water entering the connecting pipe 101 can flow into the water leaking pipe 103 through the guide pipe 102 and then is sprayed out through the rear water leaking hole 104, so that the smoke passing through the primary conveying device 8 and the secondary conveying device 9 can be further mixed with the ammonia water.
Compared with the related art, the ammonia water evaporator device for kiln denitration provided by the invention has the following beneficial effects:
through setting up one-level conveyor 8, can carry out the homogeneous mixing to aqueous ammonia and the flue gas that enters into 1 inside of aqueous ammonia evaporimeter to and through second grade conveyor 9, spray the region that can not spout to high pressure nozzle 83, avoid the dead angle to remain, through tertiary conveyor 10 at last, further mix, make the mixture of aqueous ammonia and flue gas more abundant, even.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a kiln is ammonia water evaporator device for denitration which characterized in that includes:
the ammonia water evaporator comprises an ammonia water evaporator shell, wherein the top of the ammonia water evaporator shell is fixedly connected with an ammonia water evaporator inlet through which flue gas enters after denitration treatment, the outer surface of the ammonia water evaporator shell is fixedly connected with an ammonia water evaporator support provided with a spray gun, the bottom of the ammonia water evaporator shell is provided with an ammonia water evaporator outlet used for gas to be sent out, the inside of the ammonia water evaporator shell is fixedly provided with a heat exchange evaporation mixing device, the heat exchange evaporation mixing device comprises a tube array layout heat exchange tube, the top and the bottom of the heat exchange tube are respectively and fixedly connected with a top heat exchange tube plate and a bottom heat exchange tube plate, and the upper fixedly connected with a steam interface and a condensate water interface of the heat exchange tube.
2. The ammonia water evaporator device for kiln denitration according to claim 1, wherein three conveying pipelines for conveying external ammonia water to the inside of the ammonia water evaporator shell are arranged on the ammonia water evaporator shell and below the ammonia water evaporator support.
3. The ammonia water evaporator device for kiln denitration according to claim 1, wherein the heat exchange tube is arranged inside the ammonia water evaporator shell, and the top heat exchange tube plate and the bottom heat exchange tube plate are both fixedly connected with the inner surface of the ammonia water evaporator shell.
4. The ammonia water evaporator device for denitration of kiln furnace as claimed in claim 1, wherein said steam interface and condensed water interface are both located on the same side and pass through said ammonia water evaporator shell.
5. The ammonia water evaporator device for kiln denitration according to claim 1, wherein an access manhole for workers to enter the inside of the ammonia water evaporator shell is arranged outside the ammonia water evaporator shell.
6. The ammonia water evaporator device for kiln denitration according to claim 2, further comprising a first-stage conveying device, a second-stage conveying device and a third-stage conveying device which are respectively fixed to the three conveying pipelines, wherein the second-stage conveying device, the first-stage conveying device and the third-stage conveying device are arranged from top to bottom and are located inside the ammonia water evaporator shell.
7. The ammonia water evaporator device for kiln denitration according to claim 6, wherein the primary conveying device comprises an annular pipeline, a plurality of branch pipes are fixedly connected to the inner surface of the annular pipeline, one ends of the branch pipes are fixedly connected with a high-pressure nozzle, the annular pipeline is fixed to the inner surface of the ammonia water evaporator shell, and one of the conveying pipelines is communicated.
8. The ammonia water evaporator device for kiln denitration according to claim 7, wherein the secondary conveying device comprises a flow dividing ball, four flow dividing pipes are fixedly connected to the flow dividing ball, an atomizing nozzle is fixedly connected to the bottom of each flow dividing pipe, and the flow dividing ball is fixed to one end of one of the conveying pipelines.
9. The ammonia water evaporator device for kiln denitration according to claim 8, wherein the tertiary conveying device comprises a connecting pipe which is bent upwards, a guide pipe which is bent downwards is fixedly connected to the top of the connecting pipe, a water leaking pipe is fixedly connected to one end of the guide pipe, a plurality of water leaking holes are uniformly formed in the water leaking pipe, a protective cover is fixedly connected to the outer surface of the connecting pipe, and the connecting pipe is fixed to one end of one conveying pipeline.
10. The ammonia water evaporator device for kiln denitration according to claim 9, wherein the atomizing nozzles and the high pressure nozzles are arranged in a staggered manner, and the connecting pipe is located at the center inside the ammonia water evaporator shell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111245666.XA CN113769582B (en) | 2021-10-26 | 2021-10-26 | Ammonia water evaporator device for kiln denitration |
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| CN202111245666.XA CN113769582B (en) | 2021-10-26 | 2021-10-26 | Ammonia water evaporator device for kiln denitration |
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| CN113769582A true CN113769582A (en) | 2021-12-10 |
| CN113769582B CN113769582B (en) | 2024-04-16 |
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| CN216604764U (en) * | 2021-10-26 | 2022-05-27 | 安徽金森源环保工程有限公司 | Ammonia water evaporator device for kiln denitration |
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