CN113769582B - Ammonia water evaporator device for kiln denitration - Google Patents
Ammonia water evaporator device for kiln denitration Download PDFInfo
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- CN113769582B CN113769582B CN202111245666.XA CN202111245666A CN113769582B CN 113769582 B CN113769582 B CN 113769582B CN 202111245666 A CN202111245666 A CN 202111245666A CN 113769582 B CN113769582 B CN 113769582B
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- ammonia water
- water evaporator
- fixedly connected
- denitration
- heat exchange
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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
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000001704 evaporation Methods 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 22
- 239000007789 gas Substances 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000007689 inspection Methods 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 43
- 229910021529 ammonia Inorganic materials 0.000 abstract description 20
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 230000008016 vaporization Effects 0.000 abstract description 8
- 238000009834 vaporization Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000006200 vaporizer Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 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
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
Abstract
The invention provides an ammonia water evaporator device for kiln denitration. The ammonia water evaporator device for kiln denitration comprises: the ammonia water evaporator comprises an ammonia water evaporator shell, wherein an ammonia water evaporator inlet used for enabling flue gas to enter after denitration treatment is fixedly connected to the top of the ammonia water evaporator shell, an ammonia water evaporator support provided with a spray gun is fixedly connected to the outer surface of the ammonia water evaporator shell, and an ammonia water evaporator outlet used for delivering gas is arranged at the bottom of the ammonia water evaporator shell. By additionally installing the ammonia water evaporation vaporizer device, the evaporation capacity and the mixed reaction efficiency of ammonia water are greatly improved, the use requirement of evaporation and vaporization of a large amount of ammonia water required by high-concentration flue gas can be met, the consumption of ammonia water is reduced, a new pollution source is not generated, a denitration device system is optimally promoted, meanwhile, the requirements for meeting ammonia escape standards can be far lower than the requirements for meeting the current denitration engineering, and the requirements for environmental protection and energy saving are met.
Description
Technical Field
The invention relates to the technical field of kiln flue gas denitration, in particular to an ammonia water evaporator device for kiln denitration.
Background
Kiln or furnace refers to a furnace used to fire ceramic ware and sculptures or fuse enamel to the surface of the metal ware.
The kiln flue gas denitration technology mainly uses a catalyst for catalysis, and uses ammonia gas as a denitration mode of a denitration reactant in a temperature range meeting the use requirement of the catalyst, wherein the ammonia gas of the denitration agent of the denitration device is mainly vaporized by ammonia water.
Because a large amount of heat is needed for vaporizing a large amount of ammonia water needed by denitration, if high-temperature flue gas discharged by a kiln is utilized for heating and vaporizing, the heat is insufficient for fully vaporizing the needed ammonia water, the ammonia water sprayed by a denitration spray gun can not be fully vaporized, the ammonia amount participating in denitration reaction is insufficient for reacting the needed amount, the use efficiency of a denitration agent is low, the phenomenon that the denitration efficiency is low and the denitration efficiency is low is caused, the designed denitration efficiency is finally not achieved, the requirement of the consumption of the denitration agent is not met, if the denitration efficiency is required, the spraying amount of the ammonia water can be increased, the ammonia water quantity which can not be vaporized is increased by too much sprayed into the ammonia water, vicious circle is formed, a part of excessive unreacted ammonia water can be finally discharged through a rear flue blow-off valve, corrosion can be caused to a rear part and a flue gas contact part, the waste water discharge point of the unreacted ammonia water is increased, and the ammonia escape value of a denitration device is easy to exceed the discharge standard.
Therefore, it is necessary to provide an ammonia water evaporator device for kiln denitration to solve the above technical problems.
Disclosure of Invention
The invention provides an ammonia water evaporator device for kiln denitration, which solves the problems that the environment is easy to cause excessive pollution during kiln denitration and the requirements of energy conservation and emission reduction are not met.
In order to solve the technical problems, the ammonia water evaporator device for kiln denitration provided by the invention comprises: the ammonia water evaporator shell, the top fixedly connected with of ammonia water evaporator shell is used for the ammonia water evaporator import that flue gas got into after denitration treatment, the surface fixedly connected with of ammonia water evaporator shell installs the ammonia water evaporator support of spray gun to the bottom of ammonia water evaporator shell is provided with the ammonia water evaporator export that is used for gaseous delivery, the inside fixed mounting of ammonia water evaporator shell has heat transfer evaporation mixing arrangement, heat transfer evaporation mixing arrangement includes tubular overall arrangement heat exchange tube, the top and the bottom of heat exchange tube are fixedly connected with top heat exchange tube sheet and bottom heat exchange tube sheet respectively to the last fixedly connected with steam interface and the comdenstion water interface of heat exchange tube.
Preferably, 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.
Preferably, the heat exchange tube is arranged in the ammonia water evaporator shell, and the top heat exchange tube plate and the bottom heat exchange tube plate are fixedly connected with the inner surface of the ammonia water evaporator shell.
Preferably, the vapor interface and the condensed water interface are both located on the same side and pass through the ammonia water evaporator housing.
Preferably, an inspection manhole for personnel to enter the inside of the ammonia water evaporator shell is arranged on the outer portion 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 positioned in the ammonia water evaporator shell.
Preferably, the primary conveying device comprises an annular pipeline, the inner surface of the annular pipeline is fixedly connected with a plurality of branch pipes, one end of each branch pipe is fixedly connected with a high-pressure spray head, and the annular pipeline is fixed on the inner surface of the ammonia water evaporator shell and one of the branch pipes is communicated with the conveying pipeline.
Preferably, the secondary conveying device comprises a shunt ball, four shunt tubes are fixedly connected to the shunt ball, an atomizing nozzle is fixedly connected to the bottom of each shunt tube, and the shunt ball is fixed to one end of one conveying pipeline.
Preferably, the three-stage conveying device comprises a connecting pipe which is bent upwards, the top of the connecting pipe is fixedly connected with a guide pipe which is bent downwards, one end of the guide pipe is fixedly connected with a water leakage pipe, a plurality of water leakage holes are uniformly formed in the water leakage pipe, the outer surface of the connecting pipe is fixedly connected with a protective outer cover, and the connecting pipe is fixed at one end of the conveying pipeline.
Preferably, the atomization spray heads and the high-pressure spray heads are arranged in a staggered mode, and the connecting pipe is located at the center position inside the ammonia water evaporator shell.
Compared with the related art, the ammonia water evaporator device for kiln denitration has the following beneficial effects:
the ammonia water evaporator device for kiln denitration provided by the invention has the advantages that the ammonia water evaporation evaporator device is additionally arranged, so that the evaporation capacity and the mixed reaction efficiency of ammonia water are greatly improved, the use requirement of evaporation and evaporation of a large amount of ammonia water required by high-concentration flue gas can be met, meanwhile, the ammonia water loss caused by the fact that injected ammonia water fails to evaporate and evaporate is reduced due to the improvement of evaporation capacity and mixed reaction efficiency, the injection amount and consumption of invalid ammonia water are greatly reduced, well-mixed ammonia gas enters the 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 ammonia water consumption is reduced, a new pollution source is not generated, the denitration device system is optimally improved, the operation cost is reduced, meanwhile, the requirement for meeting the ammonia escape standard is far lower, the actual requirement met in the current denitration engineering is met, the win-win environment protection energy saving requirement is met, and the energy saving requirement is met.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of an ammonia water evaporator device for kiln denitration provided by the invention;
FIG. 2 is a schematic view of a top view of the ammonia water evaporator stand of FIG. 1;
FIG. 3 is a schematic view of a portion of the heat exchange evaporative mixing device of FIG. 1;
FIG. 4 is a top view of the heat exchange evaporative mixing device of FIG. 3;
fig. 5 is a schematic structural diagram of a second embodiment of an ammonia water evaporator device for kiln denitration provided by the invention;
FIG. 6 is a schematic perspective view of a portion of the primary mixing device of FIG. 5;
FIG. 7 is a schematic view of the bottom portion of the primary mixing device of FIG. 6;
fig. 8 is a schematic view of the construction of the portion of the tertiary mixing device shown in fig. 7.
Reference numerals in the drawings:
1. the ammonia water evaporator comprises an ammonia water evaporator shell, 2, an ammonia water evaporator inlet, 3, an ammonia water evaporator bracket, 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 condensed water interface 56 and a baffle plate;
6. a conveying pipeline, a 7, an inspection manhole;
8. the device comprises a primary conveying device 81, an annular pipeline 82, a branch pipe 83 and a high-pressure spray head;
9. the secondary conveying device 91, the split-flow ball 92, the split-flow pipe 93 and the atomizing nozzle;
10. the three-stage conveying device comprises a three-stage conveying device 101, a connecting pipe 102, a flow guide pipe 103, a water leakage pipe 104, a water leakage hole 105 and a protective outer cover.
Detailed Description
The invention will be further described with reference to the drawings and embodiments.
First embodiment
Referring to fig. 1, fig. 2, fig. 3, and fig. 4 in combination, fig. 1 is a schematic structural diagram of a first embodiment of an ammonia water evaporator device for denitration of a kiln according to the present invention; FIG. 2 is a schematic view of a top view of the ammonia water evaporator stand of FIG. 1; FIG. 3 is a schematic view of a portion of the heat exchange evaporative mixing device of FIG. 1;
fig. 4 is a top view of the heat exchange evaporative mixing device shown in fig. 3. The ammonia water evaporator device for kiln denitration comprises: the ammonia water evaporator shell 1, the top fixedly connected with of ammonia water evaporator shell 1 is used for the ammonia water evaporator import 2 that flue gas got into after denitration treatment, the surface fixedly connected with of ammonia water evaporator shell 1 installs the ammonia water evaporator support 3 of spray gun to the bottom of ammonia water evaporator shell 1 is provided with the ammonia water evaporator export 4 that is used for gaseous delivery, the inside fixed mounting of ammonia water evaporator shell 1 has heat transfer evaporation mixing arrangement 5, heat transfer evaporation mixing arrangement 5 includes shell and tube type overall arrangement heat exchange tube 51, the top and the bottom of heat exchange tube 51 fixedly connected with top heat exchange tube sheet 52 and bottom heat exchange tube sheet 53 respectively to the last fixedly connected with steam interface 54 and the comdenstion water interface 55 of heat exchange tube 51, be provided with baffle 56 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 conveniently enters the ammonia water evaporator 1 from the ammonia water evaporator inlet 2 at the top, and an ammonia water evaporator bracket is arranged at the positions of the ammonia water evaporator inlet 2 and the ammonia water evaporator outlet 4.
Three conveying pipelines 6 for conveying external ammonia water to the inside of the ammonia water evaporator shell 1 are arranged on the ammonia water evaporator shell 1 and below the ammonia water evaporator support 3.
The delivery pipe 6 may be connected to an external pipe by a flange, and one end of the delivery pipe 6 protrudes into the interior of the ammonia water evaporator 1.
The heat exchange tube 51 is arranged in the ammonia water evaporator shell 1, and the top heat exchange tube plate 52 and the bottom heat exchange tube plate 53 are fixedly connected with the inner surface of the ammonia water evaporator shell 1.
The heat exchange tubes 51 are fixed inside the ammonia water evaporator housing 1 by the top heat exchange tube plate 52 and the bottom heat exchange tube plate 53.
The vapor port 54 and the condensed water port 55 are both located on the same side and pass through the ammonia water evaporator housing 1.
The outside of the ammonia water evaporator housing 1 is provided with an inspection manhole 7 for personnel to enter the inside of the ammonia water evaporator housing 1.
The exterior of the inspection manhole 7 can be opened and closed, so that the operator can conveniently enter the interior of the ammonia water evaporator shell 1
The ammonia water evaporator device for kiln denitration provided by the invention has the following working principle:
firstly, a part of kiln flue gas treated by a denitration device is introduced into an ammonia evaporator device 1 through a pipeline and an ammonia evaporator inlet 2, high-temperature flue gas enters the ammonia evaporator shell 1 and then is transmitted to the ammonia evaporator bracket 3 of a denitration spray gun through the pipe wall of the heat exchange pipe 51, a large amount of heat is obtained from the mixed flue gas, required ammonia water is fully evaporated and gasified by the spray gun through the combined action of an external ammonia water conveying pump and compressed air, the ammonia water is mixed with the high-temperature flue gas in the area, then enters the area of a heat exchange evaporation mixing device 5 in the ammonia evaporator shell 1, the heat exchange evaporation mixing device is used for carrying out heat transfer through the heat exchange pipe 51 in a tubular layout, the heat of the heat exchange pipe 51 is used for carrying out heat transfer through the heat exchange pipe 51, the heat of the high-temperature steam is transmitted to the ammonia water mixed flue gas through the pipe wall of the heat exchange pipe 51, the required ammonia water is fully evaporated and gasified by the spray gun, the evaporated ammonia water can be fully and evenly mixed with the high-temperature flue gas, finally, the evaporated ammonia water is delivered out of the ammonia water evaporation mixing device 4 through the heat exchange pipe 4 through the water evaporation device, and the ammonia water is delivered to the inside of the denitration device through the denitration device, and the denitration device is pressurized and then is delivered to the denitration device through the inside the denitration device.
Compared with the related art, the ammonia water evaporator device for kiln denitration has the following beneficial effects:
by additionally installing the ammonia evaporation vaporizer device, the evaporation vaporization capacity and the mixing reaction efficiency of ammonia are greatly improved, the use requirement of a large amount of ammonia evaporation vaporization required by high-concentration flue gas can be met, meanwhile, the ammonia loss caused by the fact that injected ammonia fails to evaporate vaporization is reduced due to the improvement of the evaporation vaporization capacity and the mixing reaction efficiency, thereby greatly reducing the injection amount and consumption of invalid ammonia, leading the well mixed ammonia to enter the denitration device more uniformly, improving the denitration efficiency of the denitration device, reducing the operation cost of the denitration device, solving the problem of generating discharged ammonia sewage, greatly improving the use reaction proportion of materials, reducing the consumption of ammonia, avoiding generating new pollution sources, optimizing and improving the denitration device system, further reducing the operation cost, simultaneously being far lower than the requirement of meeting the ammonia escape standard, meeting the actual requirement met in the current denitration engineering, and meeting the requirements of environmental protection, energy conservation and emission reduction.
Second embodiment
Referring to fig. 5-8 in combination, a first embodiment of the present application provides an ammonia water evaporator device for denitration of a kiln, and a second embodiment of the present application provides another ammonia water evaporator device for denitration of a kiln. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the ammonia water evaporator device for denitration based on the kiln according to the second embodiment of the present application is different in that the ammonia water evaporator device for denitration based on the kiln further includes
The primary conveying device 8, the secondary conveying device 9 and the tertiary conveying device 10 which are respectively fixed on the three conveying pipelines 6 are arranged in the ammonia water evaporator shell 1 from top to bottom.
The secondary conveying device 9, the primary conveying device 8 and the tertiary conveying device 10 are arranged from top to bottom and are mainly pipe fittings and spray heads, so that kiln flue gas is not influenced to be introduced into the ammonia water evaporator device 1 through the pipeline and the ammonia water evaporator inlet 2.
The primary conveying device 8 comprises an annular pipeline 81, the inner surface of the annular pipeline 81 is fixedly connected with a plurality of branch pipes 82, one end of each branch pipe 82 is fixedly connected with a high-pressure spray head 83, and the annular pipeline 81 is fixed on the inner surface of the ammonia water evaporator shell 1 and one of the conveying pipelines 6 is communicated.
Ammonia may be fed into the annular pipe 81 through the feed pipe 6.
The secondary conveying device 9 comprises a split-flow ball 91, four split-flow pipes 92 are fixedly connected to the split-flow ball 91, an atomizing nozzle 93 is fixedly connected to the bottom of each split-flow pipe 92, and the split-flow ball 91 is fixed to one end of one conveying pipeline 6.
Ammonia water can be fed into the diverter ball 91 through the feed line 6.
The three-stage conveying device 10 comprises a connecting pipe 101 which is bent upwards, the top of the connecting pipe 101 is fixedly connected with a guide pipe 102 which is bent downwards, one end of the guide pipe 102 is fixedly connected with a water leakage pipe 103, a plurality of water leakage holes 104 are uniformly formed in the water leakage pipe 103, the outer surface of the connecting pipe 101 is fixedly connected with a protective outer cover 105, and the connecting pipe 101 is fixed at one end of the conveying pipeline 6.
Ammonia water can be transported to the connection pipe 101 through the transport pipe, and the downward bending of the flow guide 102 can prevent ammonia water from flowing down upward into the connection pipe 101.
The atomization spray nozzles 93 and the high-pressure spray nozzles 83 are arranged in a staggered manner, and the connecting pipe 101 is positioned at the center position inside the ammonia water evaporator shell 1.
The number of the atomizing nozzles 93 and the number of the high-pressure nozzles 83 are identical, but are not located at the same level and in the vertical direction.
The ammonia water evaporator device for kiln denitration provided by the invention has the following working principle:
ammonia water entering the annular pipeline 81 can be sprayed through the shunt tubes 92 and the atomizing spray heads 93 and uniformly sprayed in the ammonia water evaporator 1, and the ammonia water entering the shunt balls 91 can be sprayed through the shunt tubes 92 and the atomizing spray heads 93 and sprayed to the area which is positioned above the annular pipeline 81 and cannot be sprayed by the high-pressure spray heads 83 between two adjacent high-pressure spray heads 83.
The ammonia water entering the connecting pipe 101 can flow into the water leakage pipe 103 through the flow guide pipe 102 and then be sprayed out through the rear water leakage hole 104, so that the ammonia water can be further mixed for the flue gas passing through the primary conveying device 8 and the secondary conveying device 9.
Compared with the related art, the ammonia water evaporator device for kiln denitration has the following beneficial effects:
through setting up one-level conveyor 8, can carry out the even mixing to the ammonia water and enter into the inside flue gas of ammonia water evaporator 1 to and through second grade conveyor 9, spray the region that high-pressure nozzle 83 can not spout, avoid the dead angle to remain, at last through tertiary conveyor 10, further mix, make the mixture of ammonia water and flue gas more abundant, even.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (4)
1. An ammonia water evaporator device for denitration of a kiln, comprising:
the ammonia water evaporator shell, the top of the ammonia water evaporator shell is fixedly connected with an ammonia water evaporator inlet for flue gas entering after denitration treatment, the outer surface of the ammonia water evaporator shell is fixedly connected with an ammonia water evaporator bracket provided with a spray gun, the bottom of the ammonia water evaporator shell is provided with an ammonia water evaporator outlet for delivering gas, 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 tubular layout heat exchange tube, the top and the bottom of the heat exchange tube are respectively fixedly connected with a top heat exchange tube plate and a bottom heat exchange tube plate, the upper part of the heat exchange tube is fixedly connected with a steam interface and a condensed water interface, three conveying pipelines for conveying external ammonia water into the ammonia water evaporator shell are arranged on the ammonia water evaporator shell and below the ammonia water evaporator bracket, the heat exchange tube is arranged in the ammonia water evaporator shell, the top heat exchange tube plate and the bottom heat exchange tube plate are fixedly connected with the inner surface of the ammonia water evaporator shell, 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 three conveying pipelines, the first-stage conveying device, the second-stage conveying device and the third-stage conveying device are arranged from top to bottom and are positioned in the ammonia water evaporator shell, the first-stage conveying device comprises an annular pipeline, the inner surface of the annular pipeline is fixedly connected with a plurality of branch pipes, one end of each branch pipe is fixedly connected with a high-pressure spray head, the annular pipeline is fixed on the inner surface of the ammonia water evaporator shell and communicated with one conveying pipeline, the second-stage conveying device comprises a branch ball, four branch pipes are fixedly connected on the branch ball, the bottom fixedly connected with atomizer of shunt tubes, the reposition of redundant personnel ball is fixed in one of them pipeline's one end, tertiary conveyor includes the crooked connecting pipe that rises, the top fixedly connected with downwarping honeycomb duct of connecting pipe, the one end fixedly connected with of honeycomb duct leaks the pipe, a plurality of holes that leak have evenly been seted up on the water pipe to the surface fixedly connected with protection dustcoat of connecting pipe, the connecting pipe is fixed in pipeline's one end.
2. The ammonia water evaporator device for kiln denitration according to claim 1, wherein the vapor port and the condensed water port are both located on the same side and pass through the ammonia water evaporator housing.
3. The ammonia water evaporator device for kiln denitration according to claim 1, wherein an inspection manhole for a worker to enter the inside of the ammonia water evaporator housing is provided on the outside of the ammonia water evaporator housing.
4. The ammonia water evaporator device for kiln denitration according to claim 1, wherein the atomizing nozzle and the high-pressure nozzle are arranged in a staggered manner, and the connecting pipe is positioned at the center position inside the ammonia water evaporator shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111245666.XA CN113769582B (en) | 2021-10-26 | 2021-10-26 | Ammonia water evaporator device for kiln denitration |
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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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| CN113769582A CN113769582A (en) | 2021-12-10 |
| CN113769582B true CN113769582B (en) | 2024-04-16 |
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| CN207533055U (en) * | 2017-09-29 | 2018-06-26 | 浙江省环境保护科学设计研究院 | A kind of ammonium hydroxide vaporising device for clinker line flue gas SCR denitration |
| CN208839370U (en) * | 2018-08-14 | 2019-05-10 | 东方电气集团东方锅炉股份有限公司 | A kind of ammonium hydroxide vapourizing unit using fume afterheat |
| CN209237715U (en) * | 2018-11-28 | 2019-08-13 | 北京美斯顿科技开发有限公司 | A kind of ammonium hydroxide evaporation mixer and ethane cracking furnace exhaust gas denitration system |
| CN211635981U (en) * | 2019-12-31 | 2020-10-09 | 河北林格环保科技有限公司 | Energy-saving ammonia water evaporator for flue gas denitration and denitration system |
| CN212974724U (en) * | 2020-07-29 | 2021-04-16 | 湖北中环信环保科技有限公司 | Ammonia water vaporization device in denitration of hazardous waste sintering flue gas |
| CN213492988U (en) * | 2020-08-11 | 2021-06-22 | 北京首钢国际工程技术有限公司 | Ammonia water vaporization ammonia preparation device |
| 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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