CN115069083A - Dust removal SOx/NOx control takes off white integrative tower - Google Patents
Dust removal SOx/NOx control takes off white integrative tower Download PDFInfo
- Publication number
- CN115069083A CN115069083A CN202210865863.XA CN202210865863A CN115069083A CN 115069083 A CN115069083 A CN 115069083A CN 202210865863 A CN202210865863 A CN 202210865863A CN 115069083 A CN115069083 A CN 115069083A
- Authority
- CN
- China
- Prior art keywords
- spraying system
- desulfurization
- denitration
- liquid collecting
- tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000428 dust Substances 0.000 title claims description 25
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 67
- 230000023556 desulfurization Effects 0.000 claims abstract description 67
- 238000005507 spraying Methods 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 239000003513 alkali Substances 0.000 claims abstract description 40
- 238000010521 absorption reaction Methods 0.000 claims abstract description 33
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 27
- 230000002087 whitening effect Effects 0.000 claims abstract description 22
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 47
- 239000003546 flue gas Substances 0.000 abstract description 47
- 238000011282 treatment Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 5
- 239000002912 waste gas Substances 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003897 fog Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- MXWHMTNPTTVWDM-NXOFHUPFSA-N mitoguazone Chemical compound NC(N)=N\N=C(/C)\C=N\N=C(N)N MXWHMTNPTTVWDM-NXOFHUPFSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Images
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
- B01D53/75—Multi-step processes
-
- 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
- B01D53/007—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 by irradiation
-
- 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
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- 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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/814—Magnetic fields
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a dedusting, desulfurization, denitrification and de-whitening integrated tower, and belongs to the technical field of waste gas treatment equipment. The system comprises a tower body, a gas inlet, a multilayer desulfurization spraying system, a denitration liquid collecting disc, an COA denitration spraying system, an alkali absorption liquid collecting disc, an evaporator, a chimney and an alkali absorption spraying system, wherein the gas inlet is arranged on the side face of the bottom of the tower body, the multilayer desulfurization spraying system is arranged on the lower portion of the tower body, the multilayer demister is arranged above the multilayer desulfurization spraying system, the denitration liquid collecting disc is arranged on the upper portion of the multilayer demister, the COA denitration spraying system is arranged on the upper portion of the denitration liquid collecting disc, the alkali absorption spraying system is arranged above the COA denitration spraying system, the alkali absorption spraying system is arranged above the alkali absorption liquid collecting disc, the electromagnetic field generating device is arranged in the middle of the upper portion of the tower body, the evaporator is arranged above the electromagnetic field generating device, the condenser is arranged above the evaporator, and the chimney is arranged at the top of the tower body. The invention can effectively improve the efficiency of dedusting, desulfurizing, denitrating and whitening the flue gas, thereby ensuring that the flue gas reaches the standard and is discharged.
Description
Technical Field
The invention relates to the technical field of waste gas treatment equipment, in particular to a dedusting, desulfurization, denitrification and whitening integrated tower.
Background
There are generally two cases of white smoke in a chimney: white smoke bands which are generated in a production process (such as a drying process and the like) and contain a large amount of high temperature and water vapor, wherein the water vapor possibly contains harmful components and is diffused into the atmosphere along with the water vapor to pollute the air; after wet desulfurization of high-temperature boiler flue gas, white smoke belt is generated, and the white smoke belt is actually small drops of sulfuric acid and causes direct damage to buildings, agriculture and the like, so that white smoke needs to be subjected to whitening treatment. The reason for white smoke generation: the air temperature is low, when the smoke containing a large amount of water vapor is discharged into the atmosphere, the reduction range of the smoke temperature is large, and when the temperature is reduced to be below the dew point, the water vapor in the smoke can be condensed to form small liquid drops, so that white smoke is generated. The absolute moisture content of the smoke is increased, so that the dew point temperature is increased, and after the smoke is discharged to the atmosphere, the dew point temperature is reduced, condensation occurs, and white smoke is generated. When the temperature is reduced, the water vapor can be condensed and separated out, and the absolute moisture content of the flue gas is reduced. Therefore, the method can be realized by reducing the temperature of the flue gas to be lower than the dew point temperature; meanwhile, the generation of white smoke can be reduced by effectively capturing the fine water mist after cooling. In addition, in order to reduce the pollution of white smoke to the environment, the smoke needs to be subjected to dust removal, desulfurization, denitration and other treatments, so that the smoke can be discharged up to the standard.
In the prior art, the conventional flue gas desulfurization process mainly comprises the following steps: the desulfurization efficiency of the limestone-gypsum desulfurization process, the ammonia desulfurization process, the dry desulfurization process, the double-alkali desulfurization process, the semi-dry desulfurization process and the like can reach more than 90 percent, and the limestone-gypsum desulfurization process is the most extensive.
In the prior art, the conventional process for flue gas denitration mainly comprises the following steps: SNCR denitration, SCR denitration, ozone denitration, COA denitration and other processes. SNCR denitration is a denitration process in a furnace, the temperature is required to be 850-1150 ℃, the denitration efficiency is 30-50%, and the denitration efficiency is low; SCR denitration is a selective catalytic reduction reaction, the temperature is required to be between 180 ℃ and 350 ℃, the denitration efficiency is high, and the investment is large; the principle of ozone denitration is to oxidize NO into NO by adopting high-concentration ozone 2 The denitration efficiency is low, and the unreacted ozone can pollute the atmosphere; the COA denitration is oxidation denitration, and NO is oxidized into NO by adopting a liquid strong oxidant 2 The denitration efficiency is high, and the operation is stable.
In the prior art, the dust removing equipment is generally an electric dust remover, a bag-type dust remover, a wet electric dust remover and the like. The electric dust collector and the bag-type dust collector are widely applied, the dust collection efficiency is high, the electric dust collector and the bag-type dust collector are applied to the front desulfurization section and the rear desulfurization section, and wet electric dust collectors are mostly adopted for dust collection.
The whitening process in the prior art mainly comprises the following steps: the MGGH de-whitening (wet desulphurization chimney de-whitening) process is adopted, namely, the heat exchanger is used for cooling the flue gas twice, and then the heat exchanger is used for heating the flue gas. The process reduces the water content of the flue gas by cooling, and improves the saturated water content of the flue gas by heating; the electromagnetic de-whitening device is adopted, namely high-pressure high-frequency electromagnetic energy is utilized to treat pollution components such as water mist, particles, inorganic salt, PM2.5 (particles with equivalent diameter less than or equal to 2.5 micrometers) and the like in the flue gas, and the de-whitening efficiency is high.
However, the treatment processes in the above technical solutions are not integrated together, and therefore, the flue gas cannot be simultaneously subjected to dust removal, desulfurization, denitration and whitening, so that the flue gas treatment efficiency is low, and the floor area of the equipment is large.
Disclosure of Invention
The embodiment of the invention aims to provide a dedusting, desulfurization, denitrification and whitening integrated tower, which can improve the integration level of equipment, reduce the occupied area and improve the efficiency of dedusting, desulfurization, denitrification and whitening of flue gas so as to ensure that the flue gas reaches the standard and is discharged.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dust removal SOx/NOx control takes off white integrative tower includes: the device comprises a tower body, an air inlet, a multilayer desulfurization spraying system, a multilayer demister, a denitration liquid collecting tray, a COA denitration spraying system, an alkali absorption liquid collecting tray, an alkali absorption spraying system, an electromagnetic field generating device, an evaporator, a condenser and a chimney, wherein the air inlet is arranged on the side surface of the bottom of the tower body, the multilayer desulfurization spraying system is positioned at the lower part of the tower body, the multilayer demister is arranged above the multilayer desulfurization spraying system, the denitration liquid collecting tray is positioned at the upper part of the multilayer demister, the COA denitration spraying system is arranged at the upper part of the denitration liquid collecting tray, the alkali absorption liquid collecting tray is arranged above the COA denitration spraying system, the alkali absorption spraying system is positioned above the alkali absorption liquid collecting tray, the electromagnetic field generating device is positioned in the middle of the upper part of the tower body, and the evaporator is arranged above the electromagnetic field generating device, the condenser is located the evaporimeter top, the chimney set up in the top of tower body.
Preferably, the dust-removing, desulfurization, denitrification and whitening integrated tower further comprises a lower insulating system positioned below the electromagnetic field generating device and an upper insulating system positioned above the electromagnetic field generating device.
Preferably, the direction of the electromagnetic force generated by the electromagnetic field generating device is along the height direction of the tower body.
Preferably, the dedusting, desulfurization, denitrification and whitening integrated tower further comprises a liquid collecting disc discharge port arranged on the side face of the tower body, and the liquid collecting disc discharge port is arranged on the upper portions of the denitrification liquid collecting disc and the alkali absorption liquid collecting disc.
Preferably, the dust removal, desulfurization, denitrification and whitening integrated tower further comprises a desulfurization sewage outlet arranged on the side face of the tower body, and the desulfurization sewage outlet is arranged on the lower portion of the tower body.
Preferably, each layer of the desulfurization spraying system is provided with a service inlet.
Preferably, the desulfurization spraying system is three-layer, and the demister is two-layer.
The invention has the following beneficial effects:
according to the embodiment of the invention, firstly, the flue gas enters the multilayer desulfurization spraying system from bottom to top through the gas inlet and is fully contacted with slurry sprayed by the desulfurization spraying system to complete flue gas desulfurization; then the liquid drops in the flue gas are intercepted by the multilayer demister; then the waste water is in contact reaction with the denitration agent sprayed by the COA denitration spraying system through the denitration liquid collecting disc, and NO is oxidized into NO 2 The flue gas passes through the alkali absorption liquid collecting disc to contact with alkali liquor sprayed by the alkali absorption spraying system to absorb NO 2 Complete thorough denitration, pass through electromagnetic field generating device to purify composition such as alkali fog, particulate matter, steam in the flue gas, the rethread the evaporimeter is cooled down and is filtered moisture to the flue gas, passes through the condenser is heated up and is reduced flue gas relative humidity to the flue gas, finally passes through the chimney is up to standard and is discharged the external environment. Therefore, according to the embodiment of the invention, the desulfurization spraying system, the demister, the COA denitration spraying system, the alkali absorption spraying system, the electromagnetic field generating device, the evaporator and the condenser are integrated in the tower body, so that the integration level of equipment can be improved, the occupied area is reduced, the efficiency of dedusting, desulfurizing, denitrating and whitening the flue gas can be improved, and the flue gas is ensured to be discharged up to the standard.
Drawings
Fig. 1 is a schematic structural diagram of a dust removal, desulfurization, denitrification and whitening integrated tower provided by an embodiment of the invention.
Reference numerals:
an air inlet 1; a tower body 2; a desulfurization spraying system 3; a service entrance 4; a demister 5;
a denitration liquid collecting disc 6; COA denitration spraying system 7; an alkali absorption drip pan 8; an alkali absorption spray system 9; a lower insulation system 10; an electromagnetic field generating device 11; an upper insulation system 12; an evaporator 13; a condenser 14; a chimney 15; a drip pan drain 16; and a desulfurization sewage outlet 17.
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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, it is a schematic structural diagram of an integrated tower for dust removal, desulfurization, denitrification and whitening provided by an embodiment of the present invention. The dedusting, desulfurization, denitrification and whitening integrated tower can comprise a tower body 2, an air inlet 1, a multilayer desulfurization spraying system 3, a multilayer demister 5, a denitration liquid collecting tray 6, a COA denitration spraying system 7, an alkali absorption liquid collecting tray 8, an alkali absorption spraying system 9, an electromagnetic field generating device 11, an evaporator 13, a condenser 14 and a chimney 15.
In this embodiment, the air inlet 1 is disposed on the bottom side of the tower body 2, and the multi-layer desulfurization spraying system 3 is disposed on the lower portion of the tower body 2. And external flue gas enters the multilayer desulfurization spraying system 3 through the gas inlet 1 and is fully contacted with slurry sprayed by the desulfurization spraying system 3 to complete flue gas desulfurization. Wherein, the multilayer desulfurization spraying system 3 is preferably three layers.
The multilayer demister 5 is arranged above the multilayer desulfurization spraying system 3 and used for intercepting liquid drops in the flue gas. Among them, the multilayer demister 5 is preferably two layers.
Further, in order to facilitate the maintenance of the desulfurization spraying systems 3, a maintenance inlet 4 is arranged at each layer of the desulfurization spraying systems 3. The service access 4 may be square or circular.
In addition, dust removal SOx/NOx control takes off white integrative tower still including set up in the desulfurization drain 17 of tower body 2 side, desulfurization drain 17 arranges the lower part of tower body 2 for carry out recycle with the sulfur-containing material behind the flue gas desulfurization.
In this embodiment, the denitration liquid collecting tray 6 is located on the upper portion of the multilayer demister 5, and the COA denitration spray system 7 is disposed on the upper portion of the denitration liquid collecting tray 6. After passing through the denitration liquid collecting disc 6, the flue gas contacts and reacts with a denitration agent sprayed by the COA denitration spraying system 7 to oxidize NO into NO 2 。
The alkali absorption spray system 9 is located above the alkali absorption liquid collection tray 8. The flue gas passes through the alkali absorption liquid collecting disc 8 and contacts with alkali liquor sprayed by the alkali absorption spraying system 9 to absorb NO 2 Complete denitration is completed.
Preferably, the dust removal, desulfurization, denitrification and whitening integrated tower further comprises a liquid collecting tray discharge port 16 arranged on the side surface of the tower body 2, wherein the liquid collecting tray discharge port 16 is arranged on the upper parts of the denitrification liquid collecting tray 6 and the alkali absorption liquid collecting tray 8, so that unreacted denitrification agent can flow back to an external denitrification agent storage tank through the liquid collecting tray discharge port 16, and recycling is realized.
Further, the electromagnetic field generating device 11 is located in the middle of the upper part of the tower body 2. Wherein, the direction of the electromagnetic force generated by the electromagnetic field generating device 11 is along the height direction of the tower body 2. The electromagnetic field generating device 11 can effectively purify the components such as alkali fog, particles, water vapor and the like in the flue gas.
The dust removal, desulfurization, denitrification and whitening removal integrated tower further comprises a lower insulation system 10 positioned below the electromagnetic field generating device 11 and an upper insulation system 12 positioned above the electromagnetic field generating device 11.
In this embodiment, the evaporator 13 is disposed above the electromagnetic field generating device 11, the condenser 14 is disposed above the evaporator 13, and the chimney 15 is disposed at the top of the tower body 2. The flue gas passes through the evaporator 13 in turn to cool and filter moisture, then passes through the condenser 14 to heat and reduce the relative humidity of the flue gas, and finally passes through the chimney 15 to reach the emission standard.
It can be understood that, in the embodiment of the present invention, the desulfurization spraying system 3, the demister 5, the COA denitration spraying system 7, the alkali absorption spraying system 9, the electromagnetic field generating device 11, the evaporator 13, and the condenser 14 are integrated in the tower body 2, so that the integration level of the equipment can be improved, the floor area can be reduced, and the efficiency of removing dust, desulfurization, denitration, and whitening from flue gas can be improved, thereby ensuring that the flue gas is discharged up to standard.
In summary, in the embodiment of the present invention, the flue gas enters the multilayer desulfurization spraying system 3 through the gas inlet 1 from bottom to top, and fully contacts with the slurry sprayed by the desulfurization spraying system 3 to complete the flue gas desulfurization; then the liquid drops in the flue gas are intercepted by the multilayer demister 5; then the waste water is in contact reaction with the denitration agent sprayed by the COA denitration spraying system 7 through the denitration liquid collecting disc 6, and NO is oxidized into NO 2 The flue gas passes through the alkali absorption liquid collecting disc 8 and contacts with alkali liquor sprayed by the alkali absorption spraying system 9 to absorb NO 2 Complete thorough denitration, pass through electromagnetic field generating device to purify compositions such as alkali fog, particulate matter, steam in the flue gas, the rethread evaporimeter 13 is cooled down and is filtered moisture to the flue gas, passes through condenser 14 is heated up and is reduced flue gas relative humidity to the flue gas, finally passes through chimney 15 discharge to external environment up to standard.
Therefore, in the embodiment of the invention, the desulfurization spraying system 3, the demister 5, the COA denitration spraying system 7, the alkali absorption spraying system 9, the electromagnetic field generating device 11, the evaporator 13 and the condenser 14 are integrated in the tower body 2, so that the integration level of equipment can be improved, the occupied area can be reduced, the efficiency of dedusting, desulfurizing, denitrating and whitening the flue gas can be improved, and the flue gas can be ensured to be discharged up to the standard.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a dust removal SOx/NOx control takes off white integrative tower which characterized in that includes: the device comprises a tower body, an air inlet, a multilayer desulfurization spraying system, a multilayer demister, a denitration liquid collecting tray, a COA denitration spraying system, an alkali absorption liquid collecting tray, an alkali absorption spraying system, an electromagnetic field generating device, an evaporator, a condenser and a chimney, wherein the air inlet is arranged on the side surface of the bottom of the tower body, the multilayer desulfurization spraying system is positioned at the lower part of the tower body, the multilayer demister is arranged above the multilayer desulfurization spraying system, the denitration liquid collecting tray is positioned at the upper part of the multilayer demister, the COA denitration spraying system is arranged at the upper part of the denitration liquid collecting tray, the alkali absorption liquid collecting tray is arranged above the COA denitration spraying system, the alkali absorption spraying system is positioned above the alkali absorption liquid collecting tray, the electromagnetic field generating device is positioned in the middle of the upper part of the tower body, and the evaporator is arranged above the electromagnetic field generating device, the condenser is located the evaporimeter top, the chimney set up in the top of tower body.
2. The tower of claim 1, further comprising a lower insulation system below the electromagnetic field generator and an upper insulation system above the electromagnetic field generator.
3. The tower of claim 1, wherein the electromagnetic force generated by the electromagnetic field generator is directed along the height of the tower.
4. The dust-removing, desulfurization, denitrification and whitening integrated tower as claimed in claim 1, further comprising a liquid collecting tray discharge port arranged on the side surface of the tower body, wherein the liquid collecting tray discharge port is arranged on the upper parts of the denitration liquid collecting tray and the alkali absorption liquid collecting tray.
5. The dust removal, desulfurization, denitrification and whitening integrated tower as claimed in claim 1, further comprising a desulfurization sewage outlet arranged on the side surface of the tower body, wherein the desulfurization sewage outlet is arranged at the lower part of the tower body.
6. The integrated tower for dedusting, desulfurizing, denitrifying and whitening as claimed in claim 1, wherein a service inlet is provided at each layer of the desulfurization spraying system.
7. The integrated tower for dedusting, desulfurizing, denitrifying and whitening as claimed in claim 1, wherein the desulfurizing spraying system has three layers, and the demister has two layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210865863.XA CN115069083A (en) | 2022-07-22 | 2022-07-22 | Dust removal SOx/NOx control takes off white integrative tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210865863.XA CN115069083A (en) | 2022-07-22 | 2022-07-22 | Dust removal SOx/NOx control takes off white integrative tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115069083A true CN115069083A (en) | 2022-09-20 |
Family
ID=83243754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210865863.XA Pending CN115069083A (en) | 2022-07-22 | 2022-07-22 | Dust removal SOx/NOx control takes off white integrative tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115069083A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118060071A (en) * | 2024-04-25 | 2024-05-24 | 山东保蓝环保有限公司 | Energy-saving smoke magnetic energy whitening device and process for treating smoke by adopting same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237814A (en) * | 2016-08-31 | 2016-12-21 | 山东天力能源股份有限公司 | A kind of flue gas ultra-clean discharge desulphurization denitration dust removal integrated plant and technique thereof |
| CN107138038A (en) * | 2017-07-11 | 2017-09-08 | 毕伟新 | A kind of wet desulphurization denitration dust collecting integrated technique and device |
| CN216171285U (en) * | 2021-11-04 | 2022-04-05 | 海南绿佳净环保工程有限公司 | Composite flue gas desulfurization, denitrification and whitening ultra-low emission integrated system |
-
2022
- 2022-07-22 CN CN202210865863.XA patent/CN115069083A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237814A (en) * | 2016-08-31 | 2016-12-21 | 山东天力能源股份有限公司 | A kind of flue gas ultra-clean discharge desulphurization denitration dust removal integrated plant and technique thereof |
| CN107138038A (en) * | 2017-07-11 | 2017-09-08 | 毕伟新 | A kind of wet desulphurization denitration dust collecting integrated technique and device |
| CN216171285U (en) * | 2021-11-04 | 2022-04-05 | 海南绿佳净环保工程有限公司 | Composite flue gas desulfurization, denitrification and whitening ultra-low emission integrated system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118060071A (en) * | 2024-04-25 | 2024-05-24 | 山东保蓝环保有限公司 | Energy-saving smoke magnetic energy whitening device and process for treating smoke by adopting same |
| CN118060071B (en) * | 2024-04-25 | 2024-07-09 | 山东保蓝环保有限公司 | Energy-saving smoke magnetic energy whitening device and process for treating smoke by adopting same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206652386U (en) | A kind of minimum discharge purifier of burning city domestic garbage flue gas | |
| CN101829468B (en) | Flue-gas cleaning method and system for waste incineration | |
| CN102974185B (en) | Modularized integrated smoke purification system and method for removing plurality of pollutants | |
| CN108554145B (en) | Flue gas desulfurization, denitrification, dust removal and whitening device | |
| CN202606025U (en) | Smoke desulfurizer | |
| CN103185346B (en) | Combined purification system for waste incineration smoke and technology of combined purification system | |
| CN103894051A (en) | Wet-type smoke desulphurization and denitrification integrated system and method | |
| CN101708414A (en) | System and method for desulphurizing waste gas by cyclic absorption and application thereof | |
| CN109529576B (en) | Flue gas low temperature desulfurization denitration spray scrubber | |
| CN102294171A (en) | Flue gas purifying system | |
| CN102380295A (en) | Waste rubber cracking gas purifying process and equipment thereof | |
| JP4326276B2 (en) | Gas purification device and flue gas desulfurization system | |
| JPS62197130A (en) | Method for treating exhaust gas | |
| CN110201536A (en) | A kind of kiln gas denitration sulfur-fixing dust takes off white purification device and method | |
| CN102688682A (en) | Flue gas desulfurization tower | |
| CN110898584A (en) | Low-temperature wet type flue gas dust and white removal device and using method thereof | |
| CN113769569A (en) | Low-temperature desulfurization and denitrification method and system for flue gas of rotary kiln combustion furnace of garbage power plant | |
| CN115069083A (en) | Dust removal SOx/NOx control takes off white integrative tower | |
| CN210544082U (en) | Heat exchange type waste heat recovery and waste gas purification device | |
| CN209405955U (en) | Garbage burning boiler flue gas minimum discharge system | |
| CN208244444U (en) | A kind of smoke comprehensive controlling device | |
| CN114151817A (en) | Flue gas treatment system and treatment method | |
| CN202136916U (en) | Flue gas purification system | |
| CN213021041U (en) | Flue gas co-processing system of sintering machine | |
| CN111545026A (en) | Low-temperature efficient desulfurization and denitrification device and method for flue gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220920 |
|
| WD01 | Invention patent application deemed withdrawn after publication |