CN115814542A - High-temperature nitrogen oxide treatment system containing ultrafine powder - Google Patents
High-temperature nitrogen oxide treatment system containing ultrafine powder Download PDFInfo
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- CN115814542A CN115814542A CN202310113589.5A CN202310113589A CN115814542A CN 115814542 A CN115814542 A CN 115814542A CN 202310113589 A CN202310113589 A CN 202310113589A CN 115814542 A CN115814542 A CN 115814542A
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- Prior art keywords
- gas
- nitrogen oxide
- treatment system
- filter
- protective shell
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000000843 powder Substances 0.000 title claims abstract description 32
- 239000007789 gas Substances 0.000 claims abstract description 74
- 238000010521 absorption reaction Methods 0.000 claims abstract description 55
- 238000009833 condensation Methods 0.000 claims abstract description 15
- 230000005494 condensation Effects 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 29
- 239000007791 liquid phase Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 238000012856 packing Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 7
- 239000002912 waste gas Substances 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 10
- 238000001914 filtration Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 235000013842 nitrous oxide Nutrition 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- ZWWCURLKEXEFQT-UHFFFAOYSA-N dinitrogen pentaoxide Chemical compound [O-][N+](=O)O[N+]([O-])=O ZWWCURLKEXEFQT-UHFFFAOYSA-N 0.000 description 2
- WFPZPJSADLPSON-UHFFFAOYSA-N dinitrogen tetraoxide Chemical compound [O-][N+](=O)[N+]([O-])=O WFPZPJSADLPSON-UHFFFAOYSA-N 0.000 description 2
- LZDSILRDTDCIQT-UHFFFAOYSA-N dinitrogen trioxide Chemical compound [O-][N+](=O)N=O LZDSILRDTDCIQT-UHFFFAOYSA-N 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229960001730 nitrous oxide Drugs 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses a high-temperature nitrogen oxide treatment system containing ultrafine powder, which comprises: the absorption tower comprises a candle filter, a condensation cooler, an absorption tower, a gas heater and a gas cooler, wherein an inlet and an outlet of the candle filter are respectively connected with a reaction furnace and the condensation cooler; the outlet of the condensation cooler is connected to an absorption tower; the outlet of the absorption tower is connected to a gas heater. According to the invention, the interception of ultrafine powder containing radioactivity is combined with the waste gas treatment mode, the purposes of recovery and tail gas treatment are achieved, the waste of ultrafine powder is avoided, the emission pressure of nuclear waste is reduced, the tail gas treatment time cost and equipment cost are reduced, and the economy is greatly guaranteed.
Description
Technical Field
The invention relates to the technical field related to waste gas treatment, in particular to a treatment system for treating nitrogen oxide tail gas which is generated in the nuclear industry, has medium and high temperature and contains ultrafine powder.
Background
Nitrogen oxides (NOx) mainly include: nitrogen monoxide (NO), dinitrogen monoxide (N2O), nitrogen dioxide (NO 2), dinitrogen trioxide (N2O 3), dinitrogen tetroxide (N2O 4), dinitrogen pentoxide (N2O 5) and other compounds are one of the main pollutants in the atmosphere. The waste gas not only has complex components and extremely high pollution, but also can threaten the physical health of production operators and cause great harm to plant areas and surrounding environments.
The tail gas containing nitrogen oxides produced in certain redox reactions of the nuclear industry has the following characteristics: the tail gas contains extremely strong corrosive high-temperature water vapor, oxygen, carbon dioxide, water vapor, nitrogen dioxide and the like, the outlet temperature of the tail gas is 600 ℃, and the tail gas contains ultrafine powder. Therefore, the tail gas treatment device containing the ultrafine powder by using the prior art cannot recover the ultrafine powder, the loss of the reacted ultrafine powder is caused, the ultrafine powder has strong radioactivity and ultrahigh value, and meanwhile, the ultrafine powder is harmful to human bodies, cannot be discharged at will and can only be treated as nuclear waste, and the treatment can cause the waste of a large amount of manpower and financial resources. In addition, the existing commonly used wet absorption process for treating nitrogen oxides adopts dilute nitric acid or water for physical absorption, and has the advantage of simple equipment, but obviously has the problem of low purification efficiency, and the main reason is that the reaction between physical absorption gas and absorption liquid is insufficient, and the ideal absorption effect is difficult to achieve in a short period, which is also the main reason that the absorption efficiency of the method in a laboratory can reach more than 90%, but the absorption efficiency in actual industrial production can only reach 50-65%.
Disclosure of Invention
The invention aims to provide a high-temperature nitrogen oxide treatment system containing ultrafine powder, which aims to solve the problem that the ultrafine powder cannot be recycled in the conventional tail gas treatment device containing ultrafine powder in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a high temperature and ultra-fine powder containing nitrogen oxide treatment system comprising: the absorption tower comprises a candle filter, a condensation cooler, an absorption tower, a gas heater and a gas cooler, wherein an inlet and an outlet of the candle filter are respectively connected with a reaction furnace and the condensation cooler; the outlet of the condensation cooler is connected to an absorption tower; the outlet of the absorption tower is connected to a gas heater.
As a further scheme of the invention: the outlet of the gas cooler is connected with a buffer tank, and the buffer tank is connected with an injection pump.
As a further scheme of the invention: and a wire mesh demister is arranged between the gas heater and the absorption tower.
As a further scheme of the invention: and a medium-efficiency filter and a high-efficiency filter are respectively arranged between the gas heater and the gas cooler, and the medium-efficiency filter and the high-efficiency filter adopt glass fiber filter elements.
As a further scheme of the invention: the candle type filter is provided with a sealing cover, the sealing cover is connected with a discharge port, an outer protective shell is arranged in the candle type filter main body, an inner protective shell is arranged in the outer protective shell, and the protective shell and the inner protective shell are of carbon steel cast lead cylinder structures and are in relative rotating connection; the side surface and the bottom surface of the outer protective shell are respectively provided with a plurality of outer through grooves distributed in an array, and the side surface and the bottom surface of the inner protective shell are respectively provided with a plurality of inner through grooves distributed in an array.
As a further scheme of the invention: a plurality of sintered metal filtering units are arranged inside the inner protective shell, the end part of the inner protective shell is provided with an end cover in threaded connection, and the sintered metal filtering units penetrate through the end cover and are respectively connected with a discharge port and a back flushing pipe.
As a further scheme of the invention: the bottom of the candle filter is respectively connected with an air inlet pipe and a collecting port.
As a further scheme of the invention: the top of the absorption tower is provided with an absorption liquid inlet, the absorption liquid inlet is connected with an absorption liquid storage tank through a metering pump, and the end part of the absorption liquid inlet is connected with a liquid distributor; still be connected with gas access on the absorption tower, gas access is connected with the condensation cooler, and gas access end connection has the microbubble generator, the liquid phase inlet tube is connected to the microbubble generator side, the liquid phase inlet tube is connected in the cloth liquid ware bottom surface, microbubble generator end connection V type spout.
As a further scheme of the invention: and a filter cloth is arranged in the absorption tower below the liquid distributor, and a packing layer is arranged below the gas inlet.
As a further scheme of the invention: the packing layer adopts Raschig ring ceramic packing.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the interception of ultrafine powder containing radioactivity is combined with the waste gas treatment mode, and the purposes of recovery and tail gas treatment are achieved, so that the waste of ultrafine powder is avoided, the emission pressure of nuclear waste is reduced, the tail gas treatment time cost and equipment cost are reduced, and the economy is greatly guaranteed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the candle filter of the present invention.
FIG. 3 is a schematic view showing the inner structure of a candle filter according to the present invention
FIG. 4 is a schematic structural diagram of the outer protective shell of the present invention.
FIG. 5 is a schematic view of the inner protective shell according to the present invention.
FIG. 6 is a schematic view of the structure of an absorption column in the present invention.
Fig. 7 is a schematic diagram of a microbubble generator according to the present invention.
In the figure, 101, a reaction tower; 102. a candle filter; 1021. a sealing cover; 1022. a discharge port; 1023. a blowback pipe; 1024. an air inlet pipe; 1025. a mobile phone port; 1026. an outer protective shell; 10261. a chute; 10262. an outer through groove; 1027. an inner protective shell; 10271. a flange; 10272. an inner barrel groove; 10273. an end cap; 1028. sintering the metal filter element; 103. a condensing cooler; 104. an absorption tower; 1041. an absorption liquid inlet; 10411. a liquid distributor; 1042. filtering cloth; 1043. a gas inlet; 1044. a microbubble generator; 10441. a liquid phase introduction tube; 10442. a V-shaped nozzle; 1045. a filler layer; 105. a wire mesh demister; 106. a gas heater; 107. medium efficiency filter, 108, high efficiency filter; 109. a gas cooler; 1010. a buffer tank; 1011. an injection pump; 1012. exhaust gas discharge ports, 1013, a metering pump; 1014. and an absorption liquid storage tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a high temperature nitrogen oxide treatment system containing ultra-fine powder comprises: the device comprises a candle filter 102, a condensation cooler 103, an absorption tower 104, a gas heater 106 and a gas cooler 109, wherein the inlet and the outlet of the candle filter 102 are respectively connected with a reaction furnace 101 and the condensation cooler 103, and a sintered metal filtering unit 1028 arranged in the candle filter 102 is used for filtering superfine radioactive metal powder in tail gas; an outlet of the condensation cooler 103 is connected to the absorption tower 104, the condensation cooler 103 is used for cooling the tail gas to reduce the temperature of the tail gas from 600 ℃ to 40 ℃, removing water vapor in the tail gas so as to remove nitrogen in the absorption tower 104, and the condensation cooler 103 simultaneously recovers heat energy and can supply heat for a subsequent gas heater 106 or other equipment in a plant; the outlet of the absorption tower 104 is connected to a gas heater 106, a wire mesh demister 105 is arranged between the gas heater 106 and the absorption tower 104 and used for removing mist in the gas 1, the gas is heated by the gas heater 106 to reach 120 ℃, so that the wet gas is changed into dry gas, and the gas is input to a gas cooler 109 and then cooled to reach the emission standard; in order to further improve the filtering effect on other solid matters, a medium-efficiency filter 107 and a high-efficiency filter 108 are respectively arranged between the gas heater 106 and the gas cooler 109, the medium-efficiency filter adopts a glass fiber filter element, the filtering efficiency respectively reaches 85 percent and 99.95 percent, and the impurity emission is further reduced;
in order to ensure the stability of the gas pressure in the tail gas and the stability of the reaction pressure in the process of the reaction furnace 101, a buffer tank 1010 is connected to the outlet of the gas cooler 109, an injection pump 1011 is connected to the buffer tank 1010, the buffer tank 1010 can stabilize the pressure of the tail gas in the whole system, and finally the gas passing through the buffer tank 1010 is discharged to a waste gas discharge port 1012 in the factory through the injection pump 1011.
As shown in fig. 2 to 5, in consideration of the metal powder trapped by the candle filter 102 contains strong radioactivity, and therefore, the subsequent filter maintenance needs to be considered, including the requirement of radiation protection in the filter element replacement operation, in this embodiment, a sealing cover 1021 is arranged on the candle filter 102, a discharge port 1022 is connected to the sealing cover 1021, an outer protective shell 1026 is arranged inside the main body of the candle filter 102, an inner protective shell 1027 is arranged inside the outer protective shell 1026, both the protective shell 1026 and the inner protective shell 1027 are carbon steel cast lead cylinder structures, a chute 10261 and a flange 10271 which are mutually matched are respectively arranged inside the outer protective shell 1026 and outside the inner protective shell 1027, and the flange 10271 can rotate in the chute 10261, so that the inner protective shell and the outer protective shell can relatively rotate; the side surface and the bottom surface of the outer protective shell 1026 are respectively provided with a plurality of outer through grooves 10262 distributed in an array, the side surface and the bottom surface of the inner protective shell 1027 are respectively provided with a plurality of inner through grooves 10272 distributed in an array, and in the relative rotation process of the inner protective shell and the outer protective shell, the relative position change of the inner through grooves and the outer through grooves enables the inside of the inner protective shell 1027 to be communicated or cut off with the inside of the candle filter 102, namely the inside is opened when the inner through grooves and the outer through grooves are aligned, and the inner through grooves and the outer through grooves are respectively blocked after being staggered; when needing to change the filter core unit and collecting the powder, lift the interface of discharge port 1022 off earlier, dismantle sealed lid 1021 and loosen again, do not open the lid after loosening, but rotate certain angle with it, the logical groove relative position on the interior outer protective housing changes and staggers in the rotation process, and make interior outer logical groove shutoff each other, thereby make the inside airtight space that forms of interior protective housing 1027, reach the radiation protection purpose under the protection of carbon steel cast lead material, after that lift the whole of dismantling and transfer to special nuclear waste disposal room again, dismantle under the radiation protection operating rules of higher specification, collect, operation such as change, like this in the operation of dismantling, transporting can significantly reduce the condition that the radiation leaked.
Inside protecting shell 1027 sets up a plurality of sintered metal filter unit 1028, threaded connection's end cover 10273 is installed to interior protecting shell 1027 tip, sintered metal filter unit 1028 runs through end cover 10273 and connects discharge port 1022 and blowback pipe 1023 respectively, intermittent type pulsed blowback air current is introduced to blowback pipe 1023, the blowback function passes through differential pressure gauge feedback pressure control, can blow off the filter cake on the unit and improve the filter effect, reduce the interference to the exhaust gas air current again in the minimum degree simultaneously.
An inlet pipe 1024 and a collection opening 1025 are connected to the bottom of the candle filter 102, respectively.
As shown in fig. 6 and 7, an absorption liquid inlet 1041 is arranged at the top of the absorption tower 104, the absorption liquid inlet 1041 is connected to an absorption liquid storage tank 1014 through a metering pump 1013, a dilute nitric acid solution for absorbing nitrogen oxides is stored in the absorption liquid storage tank 1014, and a liquid distributor 10411 is connected to an end of the absorption liquid inlet 1041; the absorption tower 104 is further connected with a gas inlet 1043, the gas inlet 1043 is connected with the condensing cooler 103, the end of the gas inlet 1043 is connected with a microbubble generator 1044, the side surface of the microbubble generator 1044 is connected with a liquid phase introducing pipe 10441, the liquid phase introducing pipe 10441 is connected to the bottom surface of the liquid distributor 10411, and the end of the microbubble generator 1044 is connected with a V-shaped nozzle 10442; a filter cloth 1042 is arranged in the absorption tower 104 below the liquid distributor 10411, and a packing layer 1045 is arranged below the gas inlet 1043, wherein the packing layer is made of Raschig ring ceramic packing; the nitrogen oxide gas is sprayed into the tower through the gas inlet 1043, the pressure is increased at the V-shaped nozzle 10442, the absorption liquid introduced by the self weight of the liquid distributor 10411 is arranged in the liquid-phase introducing pipe 10441, the negative pressure at the V-shaped nozzle 10442 can also generate the suction effect on the absorption liquid, the liquid phase is introduced into the nozzle, the gas at the position is sheared into micro bubbles by the liquid phase, the gas is dispersed into countless micro bubbles to be sprayed out, the micro bubbles are contacted with the slowly dropping absorption liquid after being sprayed out, and the reaction is fully performed after passing through the packing layer 1045, so that the content of most of nitrogen oxide in the absorption gas is greatly improved, and the purification effect is obviously improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A high-temperature nitrogen oxide treatment system containing ultrafine powder is characterized in that: the method comprises the following steps: the device comprises a candle filter (102), a condensation cooler (103), an absorption tower (104), a gas heater (106) and a gas cooler (109), wherein the inlet and the outlet of the candle filter (102) are respectively connected with a reaction furnace (101) and the condensation cooler (103); the outlet of the condensation cooler (103) is connected to an absorption tower (104); the outlet of the absorption column (104) is connected to a gas heater (106).
2. A high temperature nitrogen oxide treatment system containing ultra fine powder as claimed in claim 1, wherein: the outlet of the gas cooler (109) is connected with a buffer tank (1010), and the buffer tank (1010) is connected with an injection pump (1011).
3. A high temperature nitrogen oxide treatment system containing ultra fine powder as claimed in claim 1, wherein: and a wire mesh demister (105) is arranged between the gas heater (106) and the absorption tower (105).
4. A high temperature nitrogen oxide treatment system containing ultra fine powder as claimed in claim 1, wherein: a middle-effect filter (107) and a high-effect filter (108) are respectively arranged between the gas heater (106) and the gas cooler (109), and the middle-effect filter (107) and the high-effect filter (108) adopt glass fiber filter elements.
5. A high temperature nitrogen oxide treatment system containing ultra-fine powder according to any one of claims 1 to 4, wherein: the candle type filter (102) is provided with a sealing cover (1021), the sealing cover (1021) is connected with a discharge port (1022), an outer protective shell (1026) is arranged inside a main body of the candle type filter (102), an inner protective shell (1027) is arranged inside the outer protective shell (1026), and the protective shell (1026) and the inner protective shell (1027) are both carbon steel cast lead cylinder structures and are connected in a relative rotating manner; the side surface and the bottom surface of the outer protective shell (1026) are respectively provided with a plurality of outer through grooves (10262) distributed in an array, and the side surface and the bottom surface of the inner protective shell (1027) are respectively provided with a plurality of inner through grooves (10272) distributed in an array.
6. A high temperature nitrogen oxide treatment system containing ultra fine powder as claimed in claim 5, wherein: a plurality of sintered metal filter units (1028) are arranged inside the inner protective shell (1027), end covers (10273) which are in threaded connection are mounted at the end parts of the inner protective shell (1027), and the sintered metal filter units (1028) penetrate through the end covers (10273) and are respectively connected with a discharge port (1022) and a blowback pipe (1023).
7. A high temperature and ultra-fine powder containing nitrogen oxide treatment system as claimed in claim 5, wherein: the bottom of the candle filter (102) is respectively connected with an air inlet pipe (1024) and a collection port (1025).
8. A high temperature nitrogen oxide treatment system containing ultra fine powder according to any one of claims 1 to 4, wherein: an absorption liquid inlet (1041) is formed in the top of the absorption tower (104), the absorption liquid inlet (1041) is connected with an absorption liquid storage tank (1014) through a metering pump (1013), and a liquid distributor (10411) is connected to the end of the absorption liquid inlet (1041); still be connected with gas inlet (1043) on absorption tower (104), gas inlet (1043) are connected with condensing cooler (103), and gas inlet (1043) end connection has microbubble generator (1044), liquid phase inlet tube (10441) is connected to microbubble generator (1044) side, liquid phase inlet tube (10441) is connected in cloth ware (10411) bottom surface, and microbubble generator (1044) end connection V type spout (10442).
9. A high temperature nitrogen oxide treatment system containing ultra fine powders as claimed in claim 8, wherein: and a filter cloth (1042) is arranged in the absorption tower (104) below the liquid distributor (10411), and a packing layer (1045) is arranged below the gas inlet (1043).
10. A high temperature nitrogen oxide treatment system containing ultra fine powders as claimed in claim 9, wherein: the packing layer (1045) adopts Raschig ring ceramic packing.
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|---|---|---|---|
| CN202310113589.5A CN115814542B (en) | 2023-02-15 | 2023-02-15 | High-temperature nitrogen oxide treatment system containing superfine powder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310113589.5A CN115814542B (en) | 2023-02-15 | 2023-02-15 | High-temperature nitrogen oxide treatment system containing superfine powder |
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| CN115814542B CN115814542B (en) | 2023-05-02 |
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| CN104689679A (en) * | 2014-12-18 | 2015-06-10 | 成都华西堂投资有限公司 | Desulfurization and denitrification process for coke oven flue gas |
| CN104696531A (en) * | 2015-03-16 | 2015-06-10 | 大连碧蓝节能环保科技有限公司 | Delay opening and closing valve for cleaning candle filter elements |
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