CN112642277A - Cremation machine tail gas treatment system - Google Patents
Cremation machine tail gas treatment system Download PDFInfo
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- B01D53/02—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 adsorption, e.g. preparative gas chromatography
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Abstract
The invention relates to the technical field of cremation machine tail gas treatment systems, and discloses a cremation machine tail gas treatment system which comprises a high-temperature denitration system, a desulfurization system, a HCL (hydrogen chloride) system, a ceramic tube dust removal system, a medium-temperature denitration system, an electric field dust removal dehydration system, a photo-oxygen catalysis system, an activated carbon adsorption system, a low-temperature denitration system and a discharge system. This cremation machine tail gas processing system, through high temperature denitration, the setting of medium temperature denitration and low temperature denitration, reach the purpose of best denitration effect, through the desulfurization, the setting of taking off HCL, the purpose that improves the environmental protection ability has been reached, the setting through electric field dust removal dehydration, thereby desorption fat soluble compound has been reached, moisture and smoke and dust, with these waste collection backs, can act as the fuel, the purpose of make full use of resource has been reached, setting through light oxygen catalytic system, the purpose of high efficiency processing has been reached, can detect in real time through automatic on-line measuring system, it can preserve and can be monitored by real time to have reached data, prevent the purpose of unexpected situation.
Description
Technical Field
The invention relates to the technical field of tail gas treatment, in particular to a tail gas treatment system of a cremation machine.
Background
The first environmental pollution of the ten environments in the world is atmospheric pollution which is mainly a human generation source, flue gas treatment is effectively, reasonably and normatively carried out mainly due to combustion and chemical industry, the standard emission is achieved, a good environment is created for social ecological environment and human life, along with the development of the society, the quality of the flue gas generated by the human flue gas generation source is more and more harmful to human beings, deep treatment is not slow, and funeral flue gas treatment is seriously lagged behind the treatment of industrial flue gas.
The existing cremation machine tail gas treatment system generally adopts a lower-end treatment mode, has the defects of weaker treatment capacity, lower resource utilization rate, peculiar smell and incapability of monitoring the subsequent tail gas emission in real time.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a tail gas treatment system of a cremation machine, which has the advantages of strong treatment capacity, high resource utilization rate, environmental protection, capability of timely monitoring tail gas and the like, and solves the problems in the background art.
(II) technical scheme
In order to achieve the purposes of strong processing capacity, high resource utilization rate, environmental protection and timely monitoring of tail gas, the invention provides the following technical scheme: the utility model provides a cremation machine tail gas processing system, its characterized in that, including SNCR high temperature deNOx systems, air distribution system, SDS desulfurization takes off HCL tower, ceramic pipe dust remover, the medium temperature denitration module of SCR, electric field dust removal dewatering system, light oxygen catalytic system, active carbon adsorption system, SNCR low temperature deNOx systems and discharge system. One end of the SNCR high-temperature denitration system is communicated with the spark production flue gas, the SDS desulfurization and HCL removal tower is communicated with the SNCR high-temperature denitration system through an exhaust fan, the ceramic tube dust remover is communicated with the SDS desulfurization and HCL removal tower through a guide pipe, the SCR medium-temperature denitration module is communicated with the ceramic tube dust remover, the electric field dust removal and dehydration system is communicated with the SCR medium-temperature denitration module, the photo-oxidation catalysis system is communicated with the electric field dust removal and dehydration system, the active carbon adsorption system is communicated with the photo-oxidation catalysis system, the SNCR low-temperature denitration system is communicated with the active carbon adsorption system, and the discharge system is communicated with the SNCR low-temperature denitration system.
A cremator tail gas processing system includes the following steps:
1) high-temperature denitration: by using SNCR denitration method, spraying denitration agent in the form of liquid mist into a high-temperature area section at the flue gas outlet of the cremator by using a high-efficiency two-fluid spray gun nozzle, and automatically stopping when the reaction temperature is lower than a certain value
2) Desulfurizing and removing HCL: the desulfurization principle is as follows: the dry powder desulfurizer is sprayed into a desulfurizing tower acceleration zone of an injector structure through an external air distribution system, proper reaction time is selected, sulfate byproducts are rapidly and fully generated, and the principle of removing HCL is as follows: the same principle as the desulfurization method generates chloride salt by-product
3) Dedusting the ceramic tube: recovery of by-product dust using specially made ceramic fiber tubes
4) Medium-temperature denitration: by utilizing the SCR denitration method, the high-efficiency two-fluid spray gun nozzle without the type and specification and different denitration agents are adopted, under the action of a catalyst, the denitration agent is sprayed through the high-efficiency two-fluid spray gun nozzle when the temperature reaches a certain value, and the denitration agent is automatically stopped when the temperature of flue gas is lower than a certain value
5) Electric field dedusting and dewatering: the gas is ionized by high-voltage electrostatic principle and technology, i.e. gas molecules are ionized into ions and molecules with positive charges and negative charges under the action of high-voltage electric field, the charges are given to a precipitation pole under the action of attraction of the precipitation pole, and are adsorbed on a polar plate, and the precipitation freely falls along the polar plate under the action of gravity, and finally is discharged from the tower.
6) Photo-oxidative catalysis: and introducing the gas subjected to electric field dust removal into a photo-oxygen catalytic device, cracking and cutting molecular chains of the waste gas by using light with a wavelength of 253.7nm, and performing catalytic oxidation on gas molecules by using a light wavelength of 185nm to generate carbon dioxide and water.
7) Activated carbon adsorption: and introducing the gas subjected to photo-oxidation catalysis into the activated carbon adsorption device, and carrying out physical adsorption on the internal gas through the internal activated carbon to finish adsorption, filtration and purification.
8) Low-temperature denitration: by utilizing the SNCR denitration method, the gas subjected to medium-temperature denitration is introduced into the low-temperature denitration system through the fan, and low-temperature denitration is carried out through different denitration agents, denitration temperatures and different spraying forms.
9) An exhaust system: the automatic online detection system is arranged on the chimney, so that gas in the chimney is detected in real time, and is discharged after being qualified.
Preferably, the equivalent ratio of desulfurization to HCI removal is 1:1, and the desulfurizing agent is sprayed into the inside of the desulfurization and HCL removal tower in the form of ultrafine powder.
Preferably, the two sides of the high-voltage electric field are provided with protective plates, and the voltage of the high-voltage electric field can be adjusted.
Preferably, the air speed, the temperature, the residence time and the number of the UV lamp tubes in the photo-oxidation catalytic system can be adjusted to exceed the diameter of dust by 0.5-1 μm, and the purification efficiency reaches more than 99.99%.
Preferably, the activated carbon with different specifications is adopted, so that the pores among the activated carbon are changed, and the adsorption efficiency and the adsorption quality can be changed.
(III) advantageous effects
Compared with the prior art, the invention provides a cremation machine tail gas treatment system, which has the following beneficial effects:
1. this cremation machine tail gas processing system, through the setting of high temperature denitration, medium temperature denitration and low temperature denitration, through in different place temperature sections, select different place denitration methods, different denitrifiers, different spray into vaporific form, make this cremation machine tail gas processing system reach and to adjust denitration effect, so that reach the purpose of best denitration effect, through the setting of desulfurization, the HCL of taking off, adopt dry powder desulfurizer and dry powder to take off the HCL agent and carry out desulfurization and take off HCL when using, make and generate sulfate compound and chloride compound, because of sulfate compound and chloride compound are neutral, can not cause any pollution to the environment, so reached the purpose that improves the environmental protection ability.
2. The cremator tail gas treatment system, through the setting of electric field dust removal dehydration, make the impurity in the gas precipitate on the precipitation electrode through high-voltage electrostatic principle and technology when using, drop and then discharge by self gravity, thus has reached and got rid of fat-soluble compound, moisture and smoke dust, after collecting these wastes, can act as the fuel, has reached the purpose of making full use of resources, through the setting of the photo-oxygen catalysis system, the fluorescent tube of different wave bands utilizes the chemical principle to make the high molecular compound, organic compound schizolysis, degradation turn into low molecular compound, this kind of method surpasss the traditional ozone purifier, can also clear away the gas peculiar smell, can oxidize and decompose the harmful component in the polluted air into harmless products and water in the very short time, have reached the purpose of high-efficient treatment, can detect in real time through the automatic on-line detection system, the data can be stored and monitored in real time, and the purpose of preventing accidents is achieved.
Drawings
FIG. 1 is a schematic process flow diagram of a cremator exhaust gas treatment system according to the present invention;
fig. 2 is a schematic view of a process equipment of a cremator tail gas treatment system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
The first embodiment is as follows: the utility model provides a cremation machine tail gas processing system, includes SNCR high temperature deNOx systems, air distribution system, SDS desulfurization and takes off HCL tower, ceramic pipe dust remover, the medium temperature denitration module of SCR, electric field dust removal dewatering system, light oxygen catalytic system, active carbon adsorption system, SNCR low temperature deNOx systems and discharge system. One end of the SNCR high-temperature denitration system is communicated with the spark production flue gas, the SDS desulfurization and HCL removal tower is communicated with the SNCR high-temperature denitration system through an exhaust fan, the ceramic tube dust remover is communicated with the SDS desulfurization and HCL removal tower through a guide pipe, the SCR medium-temperature denitration module is communicated with the ceramic tube dust remover, the electric field dust removal and dehydration system is communicated with the SCR medium-temperature denitration module, the photo-oxidation catalysis system is communicated with the electric field dust removal and dehydration system, the active carbon adsorption system is communicated with the photo-oxidation catalysis system, the SNCR low-temperature denitration system is communicated with the active carbon adsorption system, and the discharge system is communicated with the SNCR low-temperature denitration system.
A cremator tail gas processing system includes the following steps:
1) high-temperature denitration: by utilizing the SNCR denitration method, a denitration agent is sprayed into a high-temperature area section at a smoke outlet of a cremation machine in a liquid mist form at high pressure by utilizing a high-efficiency two-fluid spray gun nozzle, and the denitration agent is automatically stopped when the reaction temperature is lower than a certain value.
2) Desulfurizing and removing HCL: the desulfurization principle is as follows: the dry powder desulfurizer is sprayed into a desulfurizing tower acceleration zone of an injector structure through an external air distribution system, proper reaction time is selected, sulfate byproducts are rapidly and fully generated, and the principle of removing HCL is as follows: the same principle as the desulfurization described above, a chloride salt by-product is produced.
3) Dedusting the ceramic tube: and recovering the byproduct dust by using a special ceramic fiber pipe.
4) Medium-temperature denitration: by utilizing the SCR denitration method, high-efficiency two-fluid spray gun nozzles with different types and specifications and different denitration agents are adopted, under the action of a catalyst, the denitration agent is sprayed through the high-efficiency two-fluid spray gun nozzles when the temperature reaches a certain value, and the denitration agent is automatically stopped when the temperature of flue gas is lower than a certain value.
5) Electric field dedusting and dewatering: the gas is ionized by high-voltage electrostatic principle and technology, i.e. gas molecules are ionized into ions and molecules with positive charges and negative charges under the action of high-voltage electric field, the charges are given to a precipitation pole under the action of attraction of the precipitation pole, and are adsorbed on a polar plate, and the precipitation freely falls along the polar plate under the action of gravity, and finally is discharged from the tower.
6) Photo-oxidative catalysis: and introducing the gas subjected to electric field dust removal into a photo-oxygen catalytic device, cracking and cutting molecular chains of the waste gas by using light with a wavelength of 253.7nm, and performing catalytic oxidation on gas molecules by using a light wavelength of 185nm to generate carbon dioxide and water.
7) Activated carbon adsorption: and introducing the gas subjected to photo-oxidation catalysis into the activated carbon adsorption device, and carrying out physical adsorption on the internal gas through the internal activated carbon to finish adsorption, filtration and purification.
8) Low-temperature denitration: by utilizing the SNCR denitration method, the gas subjected to medium-temperature denitration is introduced into the low-temperature denitration system through the fan, and low-temperature denitration is carried out through different denitration agents, denitration temperatures and different spraying forms.
9) An exhaust system: the automatic online detection system is arranged on the chimney, so that gas in the chimney is detected in real time, and is discharged after being qualified.
The equivalent ratio of 1:1.5 is adopted for desulfurization and HCI removal, and the desulfurizing agent is sprayed into the inside of a desulfurization and HCL removal tower in the form of ultrafine powder.
The two sides of the high-voltage electric field are provided with protective plates, and the voltage of the high-voltage electric field can be adjusted.
The air speed, the temperature, the residence time and the number of the UV lamp tubes in the photo-oxidation catalysis system can be adjusted to exceed the dust diameter by 0.5-1 mu m, and the purification efficiency reaches more than 99.99%. .
The active carbon with different specifications is adopted, so that the pores among the active carbon are changed, and the adsorption efficiency and the adsorption quality can be changed.
Example two: the utility model provides a cremation machine tail gas processing system, includes SNCR high temperature deNOx systems, air distribution system, SDS desulfurization and takes off HCL tower, ceramic pipe dust remover, the medium temperature denitration module of SCR, electric field dust removal dewatering system, light oxygen catalytic system, active carbon adsorption system, SNCR low temperature deNOx systems and discharge system. One end of the SNCR high-temperature denitration system is communicated with the spark production flue gas, the SDS desulfurization and HCL removal tower is communicated with the SNCR high-temperature denitration system through an exhaust fan, the ceramic tube dust remover is communicated with the SDS desulfurization and HCL removal tower through a guide pipe, the SCR medium-temperature denitration module is communicated with the ceramic tube dust remover, the electric field dust removal and dehydration system is communicated with the SCR medium-temperature denitration module, the photo-oxidation catalysis system is communicated with the electric field dust removal and dehydration system, the active carbon adsorption system is communicated with the photo-oxidation catalysis system, the SNCR low-temperature denitration system is communicated with the active carbon adsorption system, and the discharge system is communicated with the SNCR low-temperature denitration system.
A cremator tail gas processing system includes the following steps:
1) high-temperature denitration: by utilizing the SNCR denitration method, a denitration agent is sprayed into a high-temperature area section at a smoke outlet of a cremation machine in a liquid mist form at high pressure by utilizing a high-efficiency two-fluid spray gun nozzle, and the denitration agent is automatically stopped when the reaction temperature is lower than a certain value.
2) Desulfurizing and removing HCL: the desulfurization principle is as follows: the dry powder desulfurizer is sprayed into a desulfurizing tower acceleration zone of an injector structure through an external air distribution system, proper reaction time is selected, sulfate byproducts are rapidly and fully generated, and the principle of removing HCL is as follows: the same principle as the desulfurization described above, a chloride salt by-product is produced.
3) Dedusting the ceramic tube: and recovering the byproduct dust by using a special ceramic fiber pipe.
4) Medium-temperature denitration: by utilizing the SCR denitration method, high-efficiency two-fluid spray gun nozzles with different types and specifications and different denitration agents are adopted, under the action of a catalyst, the denitration agent is sprayed through the high-efficiency two-fluid spray gun nozzles when the temperature reaches a certain value, and the denitration agent is automatically stopped when the temperature of flue gas is lower than a certain value.
5) Electric field dedusting and dewatering: the gas is ionized by high-voltage electrostatic principle and technology, i.e. gas molecules are ionized into ions and molecules with positive charges and negative charges under the action of high-voltage electric field, the charges are given to a precipitation pole under the action of attraction of the precipitation pole, and are adsorbed on a polar plate, and the precipitation freely falls along the polar plate under the action of gravity, and finally is discharged from the tower.
6) Photo-oxidative catalysis: and introducing the gas subjected to electric field dust removal into a photo-oxygen catalytic device, cracking and cutting molecular chains of the waste gas by using light with a wavelength of 253.7nm, and performing catalytic oxidation on gas molecules by using a light wavelength of 185nm to generate carbon dioxide and water.
7) Activated carbon adsorption: and introducing the gas subjected to photo-oxidation catalysis into the activated carbon adsorption device, and carrying out physical adsorption on the internal gas through the internal activated carbon to finish adsorption, filtration and purification.
8) Low-temperature denitration: by utilizing the SNCR denitration method, the gas subjected to medium-temperature denitration is introduced into the low-temperature denitration system through the fan, and low-temperature denitration is carried out through different denitration agents, denitration temperatures and different spraying forms.
9) An exhaust system: the automatic online detection system is arranged on the chimney, so that gas in the chimney is detected in real time, and is discharged after being qualified.
The equivalent ratio of desulfurization to HCI removal is 1:1, and the desulfurizing agent is sprayed into the inside of the desulfurization and HCL removal tower in the form of ultrafine powder.
The two sides of the high-voltage electric field are provided with protective plates, and the voltage of the high-voltage electric field can be adjusted.
The air speed, the temperature, the residence time and the number of the UV lamp tubes in the photo-oxidation catalysis system can be adjusted to reach the condition that the dust diameter is 1-1.5 mu m, and the purification efficiency reaches 99.65%.
The active carbon with different specifications is adopted, so that the pores among the active carbon are changed, and the adsorption efficiency and the adsorption quality can be changed.
Example three: the utility model provides a cremation machine tail gas processing system, includes SNCR high temperature deNOx systems, air distribution system, SDS desulfurization and takes off HCL tower, ceramic pipe dust remover, the medium temperature denitration module of SCR, electric field dust removal dewatering system, light oxygen catalytic system, active carbon adsorption system, SNCR low temperature deNOx systems and discharge system. One end of the SNCR high-temperature denitration system is communicated with the spark production flue gas, the SDS desulfurization and HCL removal tower is communicated with the SNCR high-temperature denitration system through an exhaust fan, the ceramic tube dust remover is communicated with the SDS desulfurization and HCL removal tower through a guide pipe, the SCR medium-temperature denitration module is communicated with the ceramic tube dust remover, the electric field dust removal and dehydration system is communicated with the SCR medium-temperature denitration module, the photo-oxidation catalysis system is communicated with the electric field dust removal and dehydration system, the active carbon adsorption system is communicated with the photo-oxidation catalysis system, the SNCR low-temperature denitration system is communicated with the active carbon adsorption system, and the discharge system is communicated with the SNCR low-temperature denitration system
A cremator tail gas processing system includes the following steps:
1) high-temperature denitration: by utilizing the SNCR denitration method, a denitration agent is sprayed into a high-temperature area section at a smoke outlet of a cremation machine in a liquid mist form at high pressure by utilizing a high-efficiency two-fluid spray gun nozzle, and the denitration agent is automatically stopped when the reaction temperature is lower than a certain value.
2) Desulfurizing and removing HCL: the desulfurization principle is as follows: the dry powder desulfurizer is sprayed into a desulfurizing tower acceleration zone of an injector structure through an external air distribution system, proper reaction time is selected, sulfate byproducts are rapidly and fully generated, and the principle of removing HCL is as follows: the same principle as the desulfurization described above, a chloride salt by-product is produced.
3) Dedusting the ceramic tube: and recovering the byproduct dust by using a special ceramic fiber pipe.
4) Medium-temperature denitration: by utilizing the SCR denitration method, high-efficiency two-fluid spray gun nozzles with different types and specifications and different denitration agents are adopted, under the action of a catalyst, the denitration agent is sprayed through the high-efficiency two-fluid spray gun nozzles when the temperature reaches a certain value, and the denitration agent is automatically stopped when the temperature of flue gas is lower than a certain value.
5) Electric field dedusting and dewatering: the gas is ionized by high-voltage electrostatic principle and technology, i.e. gas molecules are ionized into ions and molecules with positive charges and negative charges under the action of high-voltage electric field, the charges are given to a precipitation pole under the action of attraction of the precipitation pole, and are adsorbed on a polar plate, and the precipitation freely falls along the polar plate under the action of gravity, and finally is discharged from the tower.
6) Photo-oxidative catalysis: and introducing the gas subjected to electric field dust removal into a photo-oxygen catalytic device, cracking and cutting molecular chains of the waste gas by using light with a wavelength of 253.7nm, and performing catalytic oxidation on gas molecules by using a light wavelength of 185nm to generate carbon dioxide and water.
7) Activated carbon adsorption: and introducing the gas subjected to photo-oxidation catalysis into the activated carbon adsorption device, and carrying out physical adsorption on the internal gas through the internal activated carbon to finish adsorption, filtration and purification.
8) Low-temperature denitration: by utilizing the SNCR denitration method, the gas subjected to medium-temperature denitration is introduced into the low-temperature denitration system through the fan, and low-temperature denitration is carried out through different denitration agents, denitration temperatures and different spraying forms.
9) An exhaust system: the automatic online detection system is arranged on the chimney, so that gas in the chimney is detected in real time, and is discharged after being qualified.
The equivalent ratio of desulfurization to HCI removal is 1:2, and the desulfurizing agent is sprayed into the inside of the desulfurization and HCL removal tower in the form of ultrafine powder.
The two sides of the high-voltage electric field are provided with protective plates, and the voltage of the high-voltage electric field can be adjusted.
The air speed, the temperature, the residence time and the number of the UV lamp tubes in the photo-oxidation catalysis system can be adjusted to exceed the dust diameter by 0.5-1 mu m, and the purification efficiency reaches more than 99.99%.
The active carbon with different specifications is adopted, so that the pores among the active carbon are changed, and the adsorption efficiency and the adsorption quality can be changed.
The invention has the beneficial effects that: the cremator tail gas treatment system can adjust the denitration effect by setting high-temperature denitration, medium-temperature denitration and low-temperature denitration, selecting different denitration methods, different denitration agents and different spraying mist forms when in use, so as to achieve the purpose of optimal denitration effect, adopts dry powder desulfurizer and dry powder dealcoholization agent to desulfurize and dealcoholize HCL when in use through the setting of desulfurization and dealcoholization, so as to generate sulfate compounds and chloride compounds, because the sulfate compounds and the chloride compounds are neutral, the environment can not be polluted, the purpose of improving the environment-friendly capacity is achieved, impurities in gas are precipitated on a precipitation electrode by a high-voltage electrostatic principle and technology when in use, are reduced by self gravity and then discharged, therefore, fat-soluble compounds, moisture and smoke dust are removed, the waste can be used as fuel after being collected, the purpose of fully utilizing resources is achieved, lamp tubes with different wave bands enable high-molecular compounds and organic compounds to be cracked and degraded into low-molecular compounds by utilizing a chemical principle through the arrangement of a photo-oxidation catalytic system, the method surpasses the traditional ozone purifier, gas peculiar smell can be removed, harmful components in polluted air can be oxidized and decomposed into harmless products and water in a very short time, the purpose of efficient treatment is achieved, the detection can be carried out in real time through an automatic online detection system, the purposes that data can be stored and monitored in real time and accidental situations are prevented are achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a cremation machine tail gas processing system, its characterized in that includes SNCR high temperature deNOx systems, air distribution system, SDS desulfurization and HCL tower, ceramic pipe dust remover, the medium temperature denitration module of SCR, electric field dust removal dewatering system, light oxygen catalytic system, active carbon adsorption system, SNCR low temperature deNOx systems and discharge system. One end of the SNCR high-temperature denitration system is communicated with the spark production flue gas, the SDS desulfurization and HCL removal tower is communicated with the SNCR high-temperature denitration system through an exhaust fan, the ceramic tube dust remover is communicated with the SDS desulfurization and HCL removal tower through a guide pipe, the SCR medium-temperature denitration module is communicated with the ceramic tube dust remover, the electric field dust removal and dehydration system is communicated with the SCR medium-temperature denitration module, the photo-oxidation catalysis system is communicated with the electric field dust removal and dehydration system, the active carbon adsorption system is communicated with the photo-oxidation catalysis system, the SNCR low-temperature denitration system is communicated with the active carbon adsorption system, and the discharge system is communicated with the SNCR low-temperature denitration system.
2. A cremator tail gas processing system includes the following steps:
1) high-temperature denitration: by utilizing the SNCR denitration method, a denitration agent is sprayed into a high-temperature area section at a smoke outlet of a cremation machine in a liquid mist form at high pressure by utilizing a high-efficiency two-fluid spray gun nozzle, and the denitration agent is automatically stopped when the reaction temperature is lower than a certain value.
2) Desulfurizing and removing HCL: the desulfurization principle is as follows: the dry powder desulfurizer is sprayed into a desulfurizing tower acceleration zone of an injector structure through an external air distribution system, proper reaction time is selected, sulfate byproducts are rapidly and fully generated, and the principle of removing HCL is as follows: the same principle as the desulfurization described above, a chloride salt by-product is produced.
3) Dedusting the ceramic tube: and recovering the byproduct dust by using a special ceramic fiber pipe.
4) Medium-temperature denitration: by utilizing the SCR denitration method, high-efficiency two-fluid spray gun nozzles with different types and specifications and different denitration agents are adopted, under the action of a catalyst, the denitration agent is sprayed through the high-efficiency two-fluid spray gun nozzles when the temperature reaches a certain value, and the denitration agent is automatically stopped when the temperature of flue gas is lower than a certain value.
5) Electric field dedusting and dewatering: the gas is ionized by high-voltage electrostatic principle and technology, i.e. gas molecules are ionized into ions and molecules with positive charges and negative charges under the action of high-voltage electric field, the charges are given to a precipitation pole under the action of attraction of the precipitation pole, and are adsorbed on a polar plate, and the precipitation freely falls along the polar plate under the action of gravity, and finally is discharged from the tower.
6) Photo-oxidative catalysis: and introducing the gas subjected to electric field dust removal into a photo-oxygen catalytic device, cracking and cutting molecular chains of the waste gas by using light with a wavelength of 253.7nm, and performing catalytic oxidation on gas molecules by using a light wavelength of 185nm to generate carbon dioxide and water.
7) Activated carbon adsorption: and introducing the gas subjected to photo-oxidation catalysis into the activated carbon adsorption device, and carrying out physical adsorption on the internal gas through the internal activated carbon to finish adsorption, filtration and purification.
8) Low-temperature denitration: by utilizing the SNCR denitration method, the gas subjected to medium-temperature denitration is introduced into the low-temperature denitration system through the fan, and low-temperature denitration is carried out through different denitration agents, denitration temperatures and different spraying forms.
9) An exhaust system: the automatic online detection system is arranged on the chimney, so that gas in the chimney is detected in real time, and is discharged after being qualified.
3. The cremator tail gas processing system of claim 2, wherein: the desulfurization and HCI removal adopt an equivalent ratio of 1:1, and the desulfurizing agent is sprayed into the inside of a desulfurization and HCL removal tower in the form of ultrafine powder.
4. The cremator tail gas processing system of claim 2, wherein: there is the guard plate both sides of high-voltage electric field, and can adjust high-voltage electric field's voltage.
5. The cremator tail gas processing system of claim 2, wherein: the wind speed, the temperature, the residence time and the number of the UV lamp tubes in the photo-oxidation catalysis system can be adjusted to exceed the dust diameter by 0.5-1 mu m, and the purification efficiency reaches more than 99.99%.
6. The cremator tail gas processing system of claim 2, wherein: the active carbon with different specifications is adopted, so that the pores among the active carbon are changed, and the adsorption efficiency and the adsorption quality can be changed.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113262631A (en) * | 2021-05-21 | 2021-08-17 | 浙江兴利盛环保设备有限公司 | Nano denitration agent, preparation method and denitration method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113262631A (en) * | 2021-05-21 | 2021-08-17 | 浙江兴利盛环保设备有限公司 | Nano denitration agent, preparation method and denitration method |
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