CN221287422U - Tunnel kiln dry desulfurization and denitrification treatment device - Google Patents
Tunnel kiln dry desulfurization and denitrification treatment device Download PDFInfo
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- CN221287422U CN221287422U CN202323081670.4U CN202323081670U CN221287422U CN 221287422 U CN221287422 U CN 221287422U CN 202323081670 U CN202323081670 U CN 202323081670U CN 221287422 U CN221287422 U CN 221287422U
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- spray gun
- storage bin
- blanking machine
- feed bin
- flue
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 18
- 230000023556 desulfurization Effects 0.000 title claims abstract description 18
- 239000007921 spray Substances 0.000 claims abstract description 25
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000004202 carbamide Substances 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 11
- 239000000428 dust Substances 0.000 claims description 21
- 230000008676 import Effects 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 7
- 230000010354 integration Effects 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 15
- 239000000779 smoke Substances 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 12
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000002351 wastewater Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 11
- 239000003546 flue gas Substances 0.000 description 11
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 7
- 239000000920 calcium hydroxide Substances 0.000 description 7
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model belongs to the technical field of environmental protection, and particularly relates to a dry desulfurization and denitrification treatment device for a tunnel kiln. According to the utility model, by arranging the first spiral metering blanking machine, the first storage bin, the first spray gun, the second spiral metering blanking machine, the second storage bin, the second spray gun and the turbulent flow, an integrated installation design is realized, urea particles can be directly pyrolyzed, the urea dissolving tank, the urea solution storage tank and other devices are eliminated, and the complex equipment construction is reduced; the method has the advantages of no secondary pollution, no wastewater generation in the whole process, no secondary treatment cost, dry treatment of the whole project, no smoke plume phenomenon of a chimney, simple operation, less use equipment and simple operation process.
Description
Technical Field
The utility model relates to the technical field of environmental protection, in particular to a tunnel kiln dry desulfurization and denitrification treatment device.
Background
With the increasing requirements of people in China on living environments, the national environmental protection force is more and more strict, various industries face environmental protection treatment, sulfur dioxide and nitrogen oxides are used as main factors for polluting the environment in flue gas, a selective reduction (SCR) denitration technology is used as a denitration technology which is mature in technology, economical and practical, and the selective reduction (SCR) denitration technology is popularized and applied in industries such as electric power, gas boilers, aluminum oxide, steel and the like in recent years. The flue gas SCR denitration is characterized in that a spray gun is used for spraying a reducing agent (such as ammonia water and urea) solution into a flue in an atomizing mode, the ammonia water has extremely high safety risk in the storage and transportation processes, meanwhile, the urea solution is used, a plurality of devices such as urea dissolution and urea solution storage are required to be arranged, the related investment cost is increased, the main desulfurization process is wet desulfurization, and wastewater and smoke plume can be generated in the desulfurization process.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a dry desulfurization and denitrification treatment device for a tunnel kiln, which solves the problems of the prior art that the tunnel kiln smoke treatment is difficult and painful, the tunnel kiln smoke quantity is generally smaller, the equipment usage amount is more and the investment cost is more expensive due to the traditional process treatment.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tunnel cave dry process SOx/NOx control treatment device, includes dust removal denitration integrated reactor, dust removal denitration integrated reactor bottom is provided with the discharge opening, dust removal denitration integrated reactor bottom one side is provided with the import flue, be provided with the venturi on the import flue, be provided with first feed bin on the venturi, be provided with first spiral measurement blanking machine on the first feed bin, first feed bin bottom is provided with first spray gun, it is provided with the second feed bin to keep away from the venturi on the import flue, be provided with second spiral measurement blanking machine on the second feed bin, second feed bin lower part is provided with the roots fan, second feed bin bottom is provided with the second spray gun, it is provided with the vortex to keep away from the second feed bin in the import flue, be provided with sack, catalyst in the dust removal denitration integrated reactor, dust removal denitration integrated reactor top one side is provided with the export.
As a preferred technical scheme of the utility model: the venturi tube is fixedly connected to the inlet flue and communicated with the inlet flue.
As a preferred technical scheme of the utility model: the urea particles are stored in the first storage bin, and the first storage bin is communicated with the venturi.
As a preferred technical scheme of the utility model: the first spiral metering blanking machine is fixedly arranged on one side of the first storage bin, the output end of the first spiral metering blanking machine stretches into the first storage bin, and the lower end of the first storage bin stretches into the venturi tube and is communicated with the first spray gun.
As a preferred technical scheme of the utility model: the upper end and the lower end of the second storage bin extend into the inlet flue and are communicated with the second spray gun, and the second spiral metering blanking machine is fixedly connected to one side of the lower portion of the second storage bin.
As a preferred technical scheme of the utility model: the cloth bags are arranged in the dust removal and denitration integrated reactor at equal intervals.
As a preferred technical scheme of the utility model: the outlet flue is fixedly arranged on one side of the upper end of the dedusting and denitration integrated reactor and is communicated with the interior of the dedusting and denitration integrated reactor.
Compared with the prior art, the utility model provides a tunnel kiln dry desulfurization and denitrification treatment device, which has the following beneficial effects:
according to the tunnel kiln dry desulfurization and denitrification treatment device, a first spiral metering blanking machine, a first storage bin, a first spray gun, a second spiral metering blanking machine, a second storage bin, a second spray gun and turbulent flow are arranged, flue gas enters a venturi tube from an inlet flue, urea particles are conveyed into the first spray gun through the first spiral metering blanking machine, the temperature of the flue gas is utilized to decompose into ammonia gas and carbon dioxide, a Roots blower reacts calcium hydroxide powder metered by the second spiral metering blanking machine, calcium hydroxide reacts with sulfur dioxide in the flue gas to produce calcium sulfate, the calcium sulfate and other dust are removed through a cloth bag in a dust removal and denitrification integrated reactor, the dust is collected through a discharge opening, the flue gas passes through a catalyst, nitrogen oxides and ammonia in the flue gas react to generate nitrogen and water, the flue gas enters a chimney through the flue, the discharge is completed, the problem of desulfurization and denitrification space is solved, the integrated installation design is realized, urea particles can be directly pyrolyzed, a urea dissolving tank, urea solution storage tank and other devices are eliminated, and complex device construction is reduced; the method has the advantages of no secondary pollution, no wastewater generation in the whole process, no secondary treatment cost, dry treatment of the whole project, no smoke plume phenomenon of a chimney, simple operation, less use equipment and simple operation process.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an enlarged schematic view of FIG. 1A according to the present utility model;
FIG. 3 is an enlarged schematic view of FIG. 1B according to the present utility model.
In the figure: 1. an inlet flue; 2. a venturi; 3. a first screw metering blanking machine; 4. a first bin; 5. a first spray gun; 6. roots blower; 7. a second spiral metering blanking machine; 8. a second bin; 9. a second spray gun; 10. turbulence; 11. a discharge port; 12. the dust removal and denitration integrated reactor; 13. a cloth bag; 14. a catalyst; 15. and (5) an outlet flue.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 3, in the present embodiment: the utility model provides a tunnel cave dry process SOx/NOx control device, including dust removal denitration integrated reactor 12, dust removal denitration integrated reactor 12 bottom is provided with discharge opening 11, dust removal denitration integrated reactor 12 bottom one side is provided with import flue 1, be provided with venturi tube 2 on the import flue 1, be provided with first feed bin 4 on the venturi tube 2, be provided with first spiral measurement blanking machine 3 on the first feed bin 4, first feed bin 4 bottom is provided with first spray gun 5, it is provided with second feed bin 8 to keep away from venturi tube 2 on the import flue 1, be provided with second spiral measurement blanking machine 7 on the second feed bin 8, second feed bin 8 lower part is provided with Roots blower 6, second feed bin 8 bottom is provided with second spray gun 9, it is provided with vortex 10 to keep away from second feed bin 8 in the import flue 1, be provided with sack 13 in the dust removal denitration integrated reactor 12, catalyst 14, dust removal denitration integrated reactor 12 top one side is provided with export 15.
In the embodiment, the inlet flue 1 is fixedly connected to one side of the bottom of the dedusting and denitration integrated reactor 12 and is communicated with the inside, the venturi tube 2 is fixedly connected to the inlet flue 1 and is communicated with the inlet flue 1, and flue gas can be conveniently input through the inlet flue 1; the urea particles are stored in the first storage bin 4, the first storage bin 4 is communicated with the venturi tube 2, and the urea particles can be conveniently stored through the first storage bin 4; the first spiral metering blanking machine 3 is fixedly arranged on one side of the first storage bin 4, the output end of the first storage bin extends into the first storage bin 4, the lower end of the first storage bin 4 extends into the venturi tube 2 and is communicated with the first spray gun 5, and urea particles can conveniently enter the venturi tube 2 smoothly and contact with flue gas through the first spiral metering blanking machine 3 and the first spray gun 5; the upper end and the lower end of the second storage bin 8 extend into the inlet flue 1 and are communicated with the second spray gun 9, the second spiral metering blanking machine 7 is fixedly connected to one side of the lower part of the second storage bin 8, calcium hydroxide powder metered by the second spiral metering blanking machine 7 can be sprayed into the inlet flue 1 through the second spiral metering blanking machine 7, the second spray gun 9 and the Roots blower 6, and calcium hydroxide and ammonia in flue gas are uniformly mixed through the turbulent flow 10; the cloth bags 13 are divided into a plurality of groups, and the cloth bags 13 are equidistantly arranged in the dust removal and denitration integrated reactor 12; the outlet flue 15 is fixedly arranged on one side of the upper end of the dedusting and denitration integrated reactor 12 and is communicated with the interior of the dedusting and denitration integrated reactor 12.
The working principle and the using flow of the utility model are as follows: in the actual use process, the equipment is placed at a proper position, one end of an inlet flue 1 is connected with a corresponding smoke discharge port, an outlet flue 15 is connected with an adaptive chimney input end, in the process, smoke enters a venturi tube 2 from the inlet flue 1, urea particles are stored in a first storage bin 4, a first spiral metering blanking machine 3 is used for conveying the urea particles into a first spray gun 5, high-flow-rate (40-60 m/s) airflow in the venturi tube 2 drives the urea particles to disperse and decompose into ammonia and carbon dioxide by using the smoke temperature, calcium oxide powder is stored in a second storage bin 8, a Roots blower 6 is used for uniformly spraying calcium hydroxide powder metered by the second spiral metering blanking machine 7 into the inlet flue 1, calcium hydroxide and ammonia in the smoke are uniformly mixed through a turbulent flow 10, sulfur dioxide in the calcium hydroxide and the smoke react to produce calcium sulfate, calcium sulfate and other dust are removed through a cloth bag 13 in a dedusting and denitration integrated reactor 12, the calcium sulfate and other dust are collected through an 11 discharge port, nitrogen oxide and ammonia in the smoke react in the smoke are enabled to generate nitrogen and water through a catalyst 14, and the nitrogen and the smoke is generated into a chimney through a smoke outlet, the urea release space is further solved, the problems of the equipment can be solved, the problems of the equipment are solved, and the equipment is directly and the equipment is completely and the equipment is reduced; the method has the advantages of no secondary pollution, no wastewater generation in the whole process, no secondary treatment cost, dry treatment of the whole project, no smoke plume phenomenon of a chimney, simple operation, less use equipment and simple operation process.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The utility model provides a device is administered in dry desulfurization denitration of tunnel cave, its characterized in that, including dust removal denitration integration reactor (12), dust removal denitration integration reactor (12) bottom is provided with discharge opening (11), dust removal denitration integration reactor (12) bottom one side is provided with import flue (1), be provided with venturi (2) on import flue (1), be provided with first feed bin (4) on venturi (2), be provided with first spiral measurement blanking machine (3) on first feed bin (4), first feed bin (4) bottom is provided with first spray gun (5), be provided with second feed bin (8) on import flue (1) of keeping away from venturi (2), be provided with second spiral measurement blanking machine (7) on second feed bin (8), second feed bin (8) lower part is provided with Roots blower (6), second feed bin (8) bottom is provided with second spray gun (9), keep away from second feed bin (8) in import flue (1), be provided with first spiral measurement blanking machine (3) on first feed bin (4) bottom, be provided with first spray gun (5), be provided with second spray gun (12) on the inlet flue (1) of keeping away from venturi (2), be provided with vortex (7) on one side of the denitration reactor (13).
2. The tunnel kiln dry desulfurization and denitrification treatment device according to claim 1, which is characterized in that: the inlet flue (1) is fixedly connected to one side of the bottom of the dedusting and denitration integrated reactor (12) and is communicated with the inside, and the venturi tube (2) is fixedly connected to the inlet flue (1) and is communicated with the inlet flue (1).
3. The tunnel kiln dry desulfurization and denitrification treatment device according to claim 1, which is characterized in that: the urea particles are stored in the first storage bin (4), and the first storage bin (4) is communicated with the venturi tube (2).
4. The tunnel kiln dry desulfurization and denitrification treatment device according to claim 1, which is characterized in that: the first spiral metering blanking machine (3) is fixedly arranged on one side of the first storage bin (4) and the output end of the first spiral metering blanking machine extends into the first storage bin (4), and the lower end of the first storage bin (4) extends into the venturi tube (2) and is communicated with the first spray gun (5).
5. The tunnel kiln dry desulfurization and denitrification treatment device according to claim 1, which is characterized in that: the upper end and the lower end of the second storage bin (8) extend into the inlet flue (1) and are communicated with the second spray gun (9), and the second spiral metering blanking machine (7) is fixedly connected to one side of the lower portion of the second storage bin (8).
6. The tunnel kiln dry desulfurization and denitrification treatment device according to claim 1, which is characterized in that: the cloth bags (13) share a plurality of groups, and the cloth bags (13) are equidistantly arranged in the dedusting and denitration integrated reactor (12).
7. The tunnel kiln dry desulfurization and denitrification treatment device according to claim 1, which is characterized in that: the outlet flue (15) is fixedly arranged on one side of the upper end of the dedusting and denitration integrated reactor (12) and is communicated with the inside of the dedusting and denitration integrated reactor (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323081670.4U CN221287422U (en) | 2023-11-15 | 2023-11-15 | Tunnel kiln dry desulfurization and denitrification treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323081670.4U CN221287422U (en) | 2023-11-15 | 2023-11-15 | Tunnel kiln dry desulfurization and denitrification treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221287422U true CN221287422U (en) | 2024-07-09 |
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ID=91741765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323081670.4U Active CN221287422U (en) | 2023-11-15 | 2023-11-15 | Tunnel kiln dry desulfurization and denitrification treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221287422U (en) |
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2023
- 2023-11-15 CN CN202323081670.4U patent/CN221287422U/en active Active
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