CN114777147B - Flue gas de-whitening method and device - Google Patents
Flue gas de-whitening method and device Download PDFInfo
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- CN114777147B CN114777147B CN202210311139.2A CN202210311139A CN114777147B CN 114777147 B CN114777147 B CN 114777147B CN 202210311139 A CN202210311139 A CN 202210311139A CN 114777147 B CN114777147 B CN 114777147B
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—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 condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chimneys And Flues (AREA)
Abstract
The invention provides a flue gas whitening method and device, which comprises the steps of carrying out heat exchange treatment on desulfurized saturated wet flue gas through a flue gas heat exchanger, reducing the temperature of the desulfurized saturated wet flue gas to separate out condensed water to obtain flue gas with reduced moisture content, introducing the flue gas with reduced moisture content into a tail gas chimney, heating the flue gas with reduced moisture content through introducing heat source gas into the tail gas chimney to obtain mixed flue gas, enabling the temperature of the mixed flue gas to be higher than the standard saturation temperature of the mixed flue gas, ensuring that the mixed flue gas is unsaturated mixed flue gas, and discharging the unsaturated mixed flue gas from a discharge port of the tail gas chimney. The invention can solve the problems of high requirements on equipment materials, high system investment cost, corrosion, blockage, leakage and the like of the system after the system is put into operation, certain limitation on practical application and the like of the existing white removing technology.
Description
Technical Field
The invention relates to the technical field of flue gas treatment, in particular to a flue gas whitening method and device.
Background
The moisture content in the flue gas after wet desulfurization basically reaches saturation, and the flue gas is reduced due to the external temperature in the process of being discharged into the atmosphere through a chimney, partial vaporous water and pollutants in the flue gas can be condensed, mist water vapor is formed at the outlet of the chimney, a white smoke plume phenomenon is generated, serious visual pollution is caused, great doubt is brought to surrounding residents, and certain pressure is brought to environmental protection work of factories. In addition, condensate in the white smoke plume is weak acid, can corrode nearby buildings and steel structures after drifting and can generate certain harm to plant growth.
The existing whitening technology mainly comprises MGGH technology, GGH technology, direct dehumidification technology and the like. The principle of the MGGH technology is that heat in high-temperature flue gas before desulfurization is utilized to heat a heat medium, meanwhile, the heat medium transfers heat to low-temperature flue gas after desulfurization, the heat medium continuously circularly flows between the high-temperature flue gas and the low-temperature flue gas, the heat in the high-temperature flue gas is continuously transferred to the low-temperature flue gas, and white smoke can be eliminated by increasing the temperature of the low-temperature flue gas. The GGH technology heats low-temperature flue gas after desulfurization by using high-temperature flue gas at an inlet of a desulfurization system, and the two flue gases directly and indirectly contact in the GGH to realize heat exchange. The desulfurized low-temperature flue gas is heated and then is discharged to the atmosphere through a chimney, so that white smoke can be eliminated. However, the technology has higher investment and operation cost, and has the problems of corrosion, blockage, leakage and the like, so the use is limited to a certain extent. The direct dehumidification technology has higher running cost and investment cost if white smoke plume is thoroughly eliminated, so that some projects directly dehumidify after a desulfurizing tower. The method has lower investment and operation cost, but can not thoroughly eliminate white smoke, and can still see the white smoke when the atmospheric temperature is lower.
In summary, the existing whitening technology has high requirements on equipment materials, so that the investment cost of the system is high, and the problems of corrosion, blockage, leakage and the like exist after the system is put into operation, and the existing whitening technology is limited in practical application.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a method and a device for whitening flue gas, so as to solve the problems that the existing whitening technology has high requirements on equipment materials, so that the investment cost of a system is high, and the system has phenomena of corrosion, blockage, leakage and the like after operation, so that the practical application is limited to a certain extent.
The invention provides a smoke whitening method, which is characterized by comprising the following steps:
Carrying out heat exchange treatment on the desulfurized saturated wet flue gas through a flue gas heat exchanger, so that the temperature of the desulfurized saturated wet flue gas is reduced, condensed water is separated out, and flue gas with reduced moisture content is obtained;
Introducing the flue gas with the reduced moisture content into a tail gas chimney, and heating the flue gas with the reduced moisture content by introducing heat source gas into the tail gas chimney to obtain mixed flue gas;
the temperature of the mixed flue gas is enabled to be higher than the standard saturation temperature of the mixed flue gas, so that the mixed flue gas is ensured to be unsaturated;
And discharging the unsaturated mixed flue gas from a discharge outlet of the tail gas chimney.
In addition, the preferred scheme is that the heat exchange treatment is performed on the desulfurized saturated wet flue gas through the flue gas heat exchanger, so that the condensed water is separated out by reducing the temperature of the desulfurized saturated wet flue gas, and the flue gas with reduced moisture content is obtained by the following steps:
respectively introducing the desulfurized saturated wet flue gas and air into the flue gas heat exchanger;
And carrying out heat exchange treatment on the desulfurized saturated wet flue gas and the air through the flue gas heat exchanger, so that the temperature of the desulfurized saturated wet flue gas is reduced, condensed water is separated out, and the flue gas with reduced moisture content is obtained.
In addition, preferably, in the process of respectively introducing the desulfurized saturated wet flue gas and the air into the flue gas heat exchanger,
Introducing the desulfurized saturated wet flue gas into a heat source inlet of the flue gas heat exchanger through a flue gas pipeline and/or,
Air is introduced into a cold source inlet of the flue gas heat exchanger through a fan.
In addition, the preferable scheme is that the flue gas with the reduced moisture content is introduced into a tail gas chimney, and the flue gas with the reduced moisture content is heated by introducing heat source gas into the tail gas chimney, so that the mixed flue gas is obtained, and the method comprises the following steps:
introducing the flue gas with the reduced moisture content into a tail gas chimney;
and introducing the heated air obtained after the heat exchange treatment into the tail gas chimney as heat source gas to mix with the flue gas with reduced moisture content in the tail gas chimney, so that the flue gas with reduced moisture content is heated to obtain mixed flue gas.
In addition, the preferable proposal is that the air with the temperature increased obtained after the heat exchange treatment is used as the heat source gas to be introduced into the tail gas chimney to be mixed with the flue gas with the reduced moisture content in the tail gas chimney, so that the flue gas with the reduced moisture content is heated, and the mixed flue gas is obtained,
Introducing the warmed air into the tail gas chimney through an air pipe, wherein,
The heated air enters the tail gas chimney from the tail end of the tail gas chimney;
and the flue gas with the reduced moisture content enters the tail gas chimney from the middle part of the tail gas chimney.
Furthermore, it is preferable that the flue gas heat exchanger is a plate heat exchanger.
In addition, the preferred scheme is that after the heat exchange treatment is performed on the desulfurized saturated wet flue gas by the flue gas heat exchanger, the temperature of the desulfurized saturated wet flue gas is reduced to separate out condensed water, and after the flue gas with reduced moisture content is obtained, the method further comprises the following steps:
and recycling condensed water precipitated in the heat exchange treatment process of the desulfurized saturated wet flue gas.
The invention provides a flue gas whitening device for the flue gas whitening method, which comprises a flue gas heat exchanger, a cold source introducing device and a heat source gas introducing device, wherein,
The flue gas heat exchanger comprises a heat source inlet and a cold source inlet;
The desulfurized saturated wet flue gas pipeline is connected with the heat source inlet, and the cold source introducing device is connected with the cold source inlet;
the flue gas outlet after heat exchange of the cold source of the flue gas heat exchanger is connected with the tail gas chimney through a tail gas pipeline, and the heat source gas introducing device is connected with the tail gas chimney.
According to the technical scheme, the flue gas whitening method and the flue gas whitening device provided by the invention have the advantages that the heat exchange treatment is carried out on the desulfurized saturated wet flue gas through the flue gas heat exchanger, so that the temperature of the desulfurized saturated wet flue gas is reduced to separate out condensed water, the moisture content (or relative humidity) of the exhausted flue gas is greatly reduced, the dew point temperature of the exhausted flue gas is reduced, the exhausted flue gas can not reach the dew point temperature in a short time after being exhausted, the moisture in the tail gas can not be condensed into water mist, and the purpose of reducing the white flue gas is further achieved. The invention can effectively eliminate white smoke, lighten equipment corrosion, prolong the service life of the system, effectively solve the problem of blockage, and has the advantages of low investment, low energy consumption and the like.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Furthermore, the invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and attainments together with a more complete understanding of the invention will become apparent and appreciated by referring to the following description taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 is a flow chart of a flue gas whitening method according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a flue gas whitening apparatus according to an embodiment of the present invention
In the attached drawings, a 1-smoke heat exchanger, a 2-tail gas chimney, a 3-smoke pipeline, a 4-fan, a 5-air pipe, a 6-tail gas pipeline and a 7-desulfurized saturated wet smoke pipeline.
The same reference numerals will be used throughout the drawings to refer to similar or corresponding features or functions.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details.
Aiming at the problems that the prior art has high requirements on equipment materials, so that the investment cost of a system is high, and the phenomena of corrosion, blockage, leakage and the like exist after the system is put into operation, and the actual application is limited to a certain extent, the flue gas whitening method and the flue gas whitening device are provided.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In order to illustrate the flue gas whitening method provided by the invention, fig. 1 shows a flow of the flue gas whitening method according to an embodiment of the invention, and fig. 2 shows a structure of a flue gas whitening device according to an embodiment of the invention.
As shown in fig. 1 and fig. 2 together, the flue gas whitening method provided by the invention comprises the following steps:
s1, carrying out heat exchange treatment on desulfurized saturated wet flue gas through a flue gas heat exchanger 1, so that the temperature of the desulfurized saturated wet flue gas is reduced, condensed water is separated out, and flue gas with reduced moisture content is obtained;
s2, introducing the flue gas with the reduced moisture content into a tail gas chimney 2, and heating the flue gas with the reduced moisture content by introducing heat source gas into the tail gas chimney 2 to obtain mixed flue gas;
s3, enabling the temperature of the mixed flue gas to be higher than the standard saturation temperature of the mixed flue gas, and ensuring that the mixed flue gas is unsaturated;
And S4, discharging the unsaturated mixed flue gas from a discharge port of the tail gas chimney 2.
The heat exchange treatment is carried out on the desulfurized saturated wet flue gas by the flue gas heat exchanger 1, so that the temperature of the desulfurized saturated wet flue gas is reduced to separate out condensed water, the moisture content (or relative humidity) of the exhaust flue gas is greatly reduced, the dew point temperature of the exhaust flue gas is reduced, the exhaust flue gas can not reach the dew point temperature in a short time after being exhausted, the moisture in the tail gas can not be condensed into water mist, and the purpose of reducing white flue gas is further achieved. The invention can effectively eliminate white smoke, lighten equipment corrosion, prolong the service life of the system, effectively solve the problem of blockage, and has the advantages of low investment, low energy consumption and the like.
As a preferred embodiment of the present invention, heat exchange treatment is performed on the desulfurized saturated wet flue gas by the flue gas heat exchanger 1, so that condensed water is separated out by reducing the temperature of the desulfurized saturated wet flue gas, and the flue gas with reduced moisture content is obtained, which comprises:
Respectively introducing the desulfurized saturated wet flue gas and air into a flue gas heat exchanger 1;
the heat exchange treatment is carried out on the desulfurized saturated wet flue gas and air through the flue gas heat exchanger 1, so that the temperature of the desulfurized saturated wet flue gas is reduced, condensed water is separated out, and the flue gas with reduced moisture content is obtained.
The heat exchange is carried out on the desulfurized saturated wet flue gas in the flue gas heat exchanger 1 by introducing air, and the air hole which is obtained after the heat exchange can also be used as a subsequent heat source gas, wherein the air can also be replaced by circulating water and is used for reducing the temperature of the desulfurized saturated wet flue gas.
As a preferred embodiment of the present invention, in the process of introducing the desulfurized saturated wet flue gas and air into the flue gas heat exchanger 1, respectively, the desulfurized saturated wet flue gas is introduced into the heat source inlet of the flue gas heat exchanger 1 through the flue gas duct 3 and/or the air is introduced into the cold source inlet of the flue gas heat exchanger 1 through the fan 4. The flue gas and air are led into the flue gas heat exchanger 1 for heat exchange by means of a flue gas duct 3 and a fan 4, wherein the average temperature of the air at the outlet of the fan 4 is 15 ℃.
As a preferred embodiment of the present invention, introducing the flue gas with reduced moisture content into the tail gas chimney 2, and heating the flue gas with reduced moisture content by introducing the heat source gas into the tail gas chimney 2, the obtaining the mixed flue gas includes:
introducing the flue gas with reduced moisture content into a tail gas chimney 2;
And (3) introducing the heated air obtained after heat exchange treatment into the tail gas chimney 2 as heat source gas to be mixed with the flue gas with reduced moisture content in the tail gas chimney 2, so that the flue gas with reduced moisture content is heated, and the mixed flue gas is obtained. The air heated is used as the heat source gas to achieve the effect of waste heat utilization, and other waste heat flue gas or waste heat steam can be used as the heat source gas to carry out waste heat utilization.
As a preferred embodiment of the invention, in the process of introducing the heated air obtained after heat exchange treatment as heat source gas into the tail gas chimney 2 to be mixed with the flue gas with reduced moisture content in the tail gas chimney 2, heating the flue gas with reduced moisture content to obtain mixed flue gas,
The warmed air is introduced into the exhaust stack 2 through the air duct 5, wherein,
The heated air enters the tail gas chimney 2 from the tail end of the tail gas chimney 2;
the flue gas with reduced moisture content enters the tail gas chimney 2 from the middle part of the tail gas chimney 2.
The flue gas with reduced moisture content is convenient for fully mixing with the warmed air, so that the flue gas with reduced moisture content is warmed up more uniformly.
As a preferred embodiment of the invention, the flue gas heat exchanger 1 is a plate heat exchanger. The heat exchange effect is better.
As a preferred embodiment of the present invention, after heat exchange treatment is performed on the desulfurized saturated wet flue gas by a flue gas heat exchanger to reduce the temperature of the desulfurized saturated wet flue gas and precipitate condensed water, the flue gas with reduced moisture content is obtained, further comprising:
and recycling condensed water separated out from the desulfurized saturated wet flue gas in the heat exchange treatment process. The collected condensed water can be reused in the system.
The invention provides a flue gas whitening device for the flue gas whitening method, which comprises a flue gas heat exchanger 1, a cold source introducing device and a heat source gas introducing device, wherein,
The flue gas heat exchanger 1 comprises a heat source inlet and a cold source inlet;
The desulfurized saturated wet flue gas pipeline 7 is connected with a heat source inlet, and the cold source introducing device is connected with a cold source inlet;
The flue gas outlet of the flue gas heat exchanger 1 after heat exchange of the cold source is connected with the tail gas chimney 2 through the tail gas pipeline 6, and the heat source gas introducing device is connected with the tail gas chimney 2.
The invention is a preferable embodiment, wherein the cold source introducing device is a fan 4, the heat source gas introducing device is an air pipe 5, and the air pipe 5 is connected with a hot gas outlet after heat exchange of a heat source of the flue gas heat exchanger 1.
In order to better explain the flue gas whitening method and the flue gas whitening device provided by the invention, specific embodiments are provided as follows:
The desulfurized flue gas is 42 ℃ saturated wet flue gas (containing 8.1 percent of water), the flue gas flow is 238846Nm 3/h, the flue gas enters a flue gas heat exchanger, the temperature is reduced to 37 ℃ after heat exchange with the blown air (containing 6.2 percent of water), and the flue gas flow is 234008Nm 3/h.
The average temperature of the air at the outlet of the fan is 15 ℃, the flow is 300000Nm 3/h, the temperature is increased to 39.3 ℃ after heat exchange with the flue gas after desulfurization, and the flow is unchanged.
The cooled desulfurization flue gas and the heated air are mixed in a chimney, the flue gas temperature is 38.3 ℃ and the water content is 3.2%, the flow is 534008Nm 3/h, and the temperature is 13 ℃ higher than the saturation temperature. At this time, the mixed smoke is in an unsaturated state, and no condensed water mist and white smoke are generated during discharge.
According to the flue gas whitening method and device provided by the invention, the heat exchange treatment is carried out on the desulfurized saturated wet flue gas through the flue gas heat exchanger, so that the temperature of the desulfurized saturated wet flue gas is reduced to separate out condensed water, the moisture content (or relative humidity) of the emptied flue gas is greatly reduced, the dew point temperature of the emptied flue gas is reduced, the emptied flue gas can not reach the dew point temperature in a short time after being discharged, the moisture in the tail gas can not be condensed into water mist, and the purpose of reducing the white flue gas is further achieved. The invention can effectively eliminate white smoke, lighten equipment corrosion, prolong the service life of the system, effectively solve the problem of blockage, and has the advantages of low investment, low energy consumption and the like.
The flue gas whitening method and apparatus according to the present invention are described above by way of example with reference to the accompanying drawings. It will be appreciated by those skilled in the art that various modifications may be made to the flue gas whitening method and apparatus of the present invention as set forth above without departing from the spirit of the invention. Accordingly, the scope of the invention should be determined from the following claims.
Claims (6)
1. A method for whitening flue gas, comprising the steps of:
Carrying out heat exchange treatment on the desulfurized saturated wet flue gas through a flue gas heat exchanger, so that the temperature of the desulfurized saturated wet flue gas is reduced, condensed water is separated out, and flue gas with reduced moisture content is obtained;
Introducing the flue gas with the reduced moisture content into a tail gas chimney, and heating the flue gas with the reduced moisture content by introducing heat source gas into the tail gas chimney to obtain mixed flue gas, wherein the method comprises the steps of introducing the flue gas with the reduced moisture content into the tail gas chimney; the method comprises the steps of mixing heated air obtained after heat exchange treatment with flue gas with reduced moisture content in a tail gas chimney as heat source gas, heating the flue gas with reduced moisture content to obtain mixed flue gas, mixing the heated air obtained after heat exchange treatment with the flue gas with reduced moisture content in the tail gas chimney as heat source gas, heating the flue gas with reduced moisture content to obtain mixed flue gas, and introducing the heated air into the tail gas chimney through an air pipe in the process of obtaining mixed flue gas, wherein the heated air enters the tail gas chimney from the tail end of the tail gas chimney, and the flue gas with reduced moisture content enters the tail gas chimney from the middle of the tail gas chimney through a tail gas pipeline;
the temperature of the mixed flue gas is enabled to be higher than the standard saturation temperature of the mixed flue gas, so that the mixed flue gas is ensured to be unsaturated;
And discharging the unsaturated mixed flue gas from a discharge outlet of the tail gas chimney.
2. The method for removing white from flue gas according to claim 1, wherein the heat exchange treatment of the desulfurized saturated wet flue gas by a flue gas heat exchanger to reduce the temperature of the desulfurized saturated wet flue gas to separate out condensed water, and obtaining the flue gas with reduced moisture content comprises:
respectively introducing the desulfurized saturated wet flue gas and air into the flue gas heat exchanger;
And carrying out heat exchange treatment on the desulfurized saturated wet flue gas and the air through the flue gas heat exchanger, so that the temperature of the desulfurized saturated wet flue gas is reduced, condensed water is separated out, and the flue gas with reduced moisture content is obtained.
3. A flue gas whitening method according to claim 2, wherein, during the introduction of the desulfurized saturated wet flue gas and air respectively into the flue gas heat exchanger,
Introducing the desulfurized saturated wet flue gas into a heat source inlet of the flue gas heat exchanger through a flue gas pipeline and/or,
Air is introduced into a cold source inlet of the flue gas heat exchanger through a fan.
4. A flue gas whitening method according to claim 1, wherein,
The flue gas heat exchanger is a plate heat exchanger.
5. The method for removing white from flue gas according to claim 1, wherein after the heat exchange treatment is performed on the desulfurized saturated wet flue gas by the flue gas heat exchanger to reduce the temperature of the desulfurized saturated wet flue gas to separate out condensed water, the method further comprises:
and recycling condensed water precipitated in the heat exchange treatment process of the desulfurized saturated wet flue gas.
6. A flue gas whitening device for a flue gas whitening method according to any one of claims 1 to 5, characterized by comprising a flue gas heat exchanger, a cold source introduction device and a heat source gas introduction device, wherein,
The flue gas heat exchanger comprises a heat source inlet and a cold source inlet;
The desulfurized saturated wet flue gas pipeline is connected with the heat source inlet, and the cold source introducing device is connected with the cold source inlet;
The flue gas outlet after heat exchange of the cold source of the flue gas heat exchanger is connected with a tail gas chimney through a tail gas pipeline, the heat source gas introducing device is connected with the tail gas chimney through a heat source gas pipeline,
The cold source introducing device is a fan, the heat source gas introducing device is an air pipe, and the air pipe is connected with a hot gas outlet after heat exchange of a heat source of the flue gas heat exchanger;
the method comprises the steps of introducing heated air into the tail gas chimney through an air pipe, enabling the heated air to enter the tail gas chimney from the tail end of the tail gas chimney, and enabling flue gas with reduced moisture content to enter the tail gas chimney from the middle of the tail gas chimney through the tail gas pipeline.
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| CN105805768A (en) * | 2016-05-19 | 2016-07-27 | 洛阳瑞昌石油化工设备有限公司 | Energy saving and environmental protecting equipment and process for reducing white smoke in flue gas |
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| CN108786388A (en) * | 2018-05-24 | 2018-11-13 | 天津大学 | A kind of removing method of wet type desulfurizing flue gas water mist |
| CN109395527A (en) * | 2018-12-05 | 2019-03-01 | 中冶南方都市环保工程技术股份有限公司 | A kind of dehumidifying of wet desulfurization flue gas takes off white system and method |
| CN211274153U (en) * | 2019-12-02 | 2020-08-18 | 海汇集团有限公司 | A boiler flue gas dewhitening device |
| CN111974182A (en) * | 2020-07-30 | 2020-11-24 | 浙江开尔新材料股份有限公司 | Novel high-efficient waste heat retrieval and utilization and flue gas take off white integrated device |
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