CN209968068U - Plasma collaborative denitration device for waste incineration flue gas - Google Patents
Plasma collaborative denitration device for waste incineration flue gas Download PDFInfo
- Publication number
- CN209968068U CN209968068U CN201920502185.4U CN201920502185U CN209968068U CN 209968068 U CN209968068 U CN 209968068U CN 201920502185 U CN201920502185 U CN 201920502185U CN 209968068 U CN209968068 U CN 209968068U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- plasma
- conveying pipeline
- tower
- air door
- 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.)
- Active
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a flue gas treatment technical field especially relates to a msw incineration flue gas plasma is denitrification facility in coordination. The utility model provides a msw incineration flue gas plasma denitration device in coordination, includes exhaust gas generator, desulfurizing tower and chimney, wherein: the waste gas generator, the chilling tower, the mixing and uniformly distributing device, the plasma reactor, the activated carbon ejector, the dust remover and the smoke return air duct, the waste gas generator, the chilling tower, the mixing and uniformly distributing device, the desulfurizing tower, the dust remover, the induced draft fan and the chimney are sequentially connected through a first conveying pipeline, the activated carbon ejector is arranged on a first conveying pipeline between the desulfurizing tower and the dust remover, one end of the smoke return air duct is arranged on the first conveying pipeline between the induced draft fan and the chimney, the other end of the smoke return air duct is connected with the mixing and uniformly distributing device, and the plasma reactor is arranged on the smoke return air duct. The utility model discloses fine particle and acid composition in the flue gas cause wearing and tearing and corruption to plasma equipment to prevent to influence plasma reactor's life and stability.
Description
Technical Field
The utility model relates to a flue gas treatment technical field especially relates to a msw incineration flue gas plasma is denitrification facility in coordination.
Background
With the development of socioeconomic of China, a lot of industrial garbage is generated. The smoke generated by burning the garbage contains fine particles (dust), HF, HCl and NOX、SO2Dioxin, furan, heavy metals, etc. and a small amount of CO, if the flue gas is directly discharged, serious air pollution is generated.
Most of the existing markets adopt an SNCR denitration technology, and ammonia water or urea is adopted as a reducing agent to remove and reduce emission of nitrogen oxides in flue gas. Because the SNCR technology can not ensure NO when the garbage incinerator is just started, the incineration working condition is unstable and the garbage incinerator is in low-load operationXThe indexes reach the standard stably, and blockage and corrosion of an air preheater, a dust remover and the like caused by Ammonium Bisulfate (ABS) and secondary aerosol pollution generated by ammonia and ammonium salt fine particles and the like are caused by excessive spraying of a reducing agent.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the nitrogen oxide content in the flue gas can't reach emission standard among the correlation technique, the embodiment of the utility model provides a waste incineration flue gas plasma denitration device in coordination, its aim at reduces the nitrogen oxide content in the flue gas to in the emission prevents to cause jam or corruption to the dust remover.
The utility model provides a msw incineration flue gas plasma is denitrification facility in coordination, including exhaust gas generator, desulfurizing tower and chimney, still include the quench tower, mix the equipartition ware, plasma reactor, the active carbon sprayer, the dust remover, draught fan and return flue gas duct, exhaust gas generator, the quench tower, mix the equipartition ware, the desulfurizing tower, the dust remover, draught fan and chimney link to each other in proper order through first pipeline, the active carbon sprayer sets up on the first pipeline between desulfurizing tower and dust remover, the one end in return flue gas duct sets up on the first pipeline between draught fan and chimney, the other end in return flue gas duct links to each other with mixing the equipartition ware, plasma reactor sets up on return flue gas duct.
The flue gas generated in the waste gas generator is cooled by the chilling tower so as to prevent the adverse effect on the performance of a subsequent desulfurizing tower or the high-temperature damage caused by a filter material of a dust remover; through the arrangement of the smoke returning air duct, gas can be conveniently supplied into the plasma reactor, a large amount of active free radicals can be conveniently generated in the plasma reactor, and the active free radicals are input into the mixing and uniformly distributing device to be mixed with the flue gas output from the chilling tower, so that pollutants such as low-valence nitrogen oxides, dioxins, furans, CO, gaseous zero-valent mercury and the like in the flue gas are oxidized and then sequentially treated by the desulfurizing tower, the active carbon ejector and the dust remover.
Further cooling the flue gas by a desulfurizing tower, and absorbing acidic components such as SO in the flue gas2HCl, HF and nitric oxide which is oxidized into high valence state by free radical, etc., then the flue gas is sprayed with active carbon by an active carbon sprayer, thereby adsorbing dioxin, furans, heavy metals, etc. in the flue gas, and finally the acidic components in the flue gas are further removed by a dust remover to thoroughly remove the acidic components; therefore, the content of nitrogen oxides in the flue gas is reduced, the flue gas reaches the emission standard, and meanwhile, acidic components, dioxin, furan, heavy metals and the like in the flue gas are removed, so that the harm to the environment caused by direct emission is avoided.
Through the setting to the draught fan to accelerate the diffusion velocity of the net flue gas after the dust remover is handled, be convenient for spread.
Optionally, the return flue includes second pipeline, return flue air door, from inhaling wind flue air door and auxiliary fan, and the one end of second pipeline links to each other with the first pipeline between draught fan and the chimney, and the other end of second pipeline links to each other with mixing the uniform distributor, and return flue air door, plasma reactor, auxiliary fan and from inhaling wind flue air door all set up on the second pipeline.
Through the arrangement of the second conveying pipeline, the air door of the return air flue and the air door of the self-air suction flue, the clean flue gas treated by the dust remover and the external self-air suction flue gas are prevented from being simultaneously input into the second conveying pipeline, so that the stability of a flow field in the desulfurizing tower is damaged; the auxiliary fan is arranged, so that clean flue gas can be conveniently input into the second conveying pipeline when the waste gas generator runs at a low load; through the arrangement of the plasma reactor, the second conveying pipeline can conveniently input clean flue gas or self-ventilation flue gas into the plasma reactor.
Optionally, the return air flue air door includes return air flue entry air door and return air flue export air door, return air flue entry air door sets up in the one end that the second pipeline is close to the export of draught fan, return air flue export air door sets up in the one end that the second pipeline closes on the hybrid uniform distributor, plasma reactor and auxiliary fan set gradually between return air flue entry air door and return air flue export air door, be located between return air flue entry air door and the auxiliary fan from the return air flue air door, and link to each other with the second pipeline.
The arrangement of the second conveying pipeline, the air door of the return air flue and the air door of the self-suction air flue is convenient for closing the air door of the return air flue when the clean flue gas treated by the dust remover is not required to be conveyed into the second conveying pipeline, preventing the clean flue gas from entering the second conveying pipeline to damage the stability of a flow field in the desulfurization tower, and closing the air door of the self-suction air flue when the clean flue gas treated by the dust remover is required to be conveyed into the second conveying pipeline to avoid that the self-suction air flue gas enters the air door of the self-suction air flue and the clean flue gas cannot be smoothly input into the second conveying pipeline, so that the flow field in the desulfurization tower is damaged; the auxiliary fan is arranged, so that clean flue gas can be conveniently input into the second conveying pipeline when the waste gas generator runs at a low load; through the arrangement of the plasma reactor, the second conveying pipeline can conveniently input clean flue gas or self-ventilation flue gas into the plasma reactor.
Optionally, a self-suction flow controller is further disposed between the self-suction flue air door and the second conveying pipeline.
Through setting up from inhaling wind flow controller to the flue gas velocity of control from inhaling wind flue air door department, thereby be convenient for clean flue gas to flow back in the second conveying pipeline and flow to in the plasma reactor.
Optionally, the plasma reactor includes a reactor body, a plasma power supply and a discharge electrode, the reactor body is located at one end of the second conveying pipe and is adjacent to the quench tower, the discharge electrode is disposed in the reactor body, and the plasma power supply is disposed outside the reactor body and connected to the discharge electrode.
The positive electrode of the plasma power supply is connected with the discharge electrode, and the negative electrode is grounded, so that the discharge electrode injects electric energy into the flue gas, and O in the flue gas2、H2And (3) ionizing molecules such as O and the like into active free radicals, and conveying the backflow clean flue gas containing the active free radicals or self-suction air into the desulfurizing tower.
Optionally, the mixing and uniform distribution device comprises a distributor and a mixer, the chilling tower, the distributor, the mixer and the desulfurizing tower are sequentially connected, one end of the second conveying pipeline is connected with the distributor, at least one group of spray pipes are arranged in the distributor, at least one group of mixing plates which are arranged at a first included angle with the conveying direction of the flue gas are arranged in the mixer, and the mixing plates are circular or elliptical.
Through the arrangement of the distributor and the mixer, the self-suction air or backflow clean flue gas rich in active free radicals in the plasma reactor is firstly input into the distributor, the self-suction air or backflow clean flue gas is divided into a plurality of strands through the distributor, the plurality of strands of self-suction air or backflow clean flue gas are fully mixed with the original flue gas through the mixer, and the active free radicals fully oxidize partial components in the flue gas.
Optionally, be equipped with desulfurization process water in the desulfurizing tower and spout with ware and filter layer, the desulfurizing tower includes second input and second output, and desulfurization process water spouts with ware and is higher than the second input relatively and be less than the setting of second output, and the filter layer is higher than desulfurization process water and spouts with ware and be less than the setting of second output relatively.
The desulfurization process water injector is arranged in the desulfurization tower, SO that the flue gas input into the desulfurization tower can be conveniently sprayed with water to create an ionic water environment, and alkaline substances, HCl, HF and SO in a filter layer can be further treated3、SO2And the high-valence nitrogen oxide generated by oxidation reacts to generate salts, so that the salts can be conveniently removed from the flue gas in a dust remover.
Optionally, a cooling atomizer is arranged in the quench tower, the quench tower includes a first input end and a first output end, and the cooling atomizer is relatively lower than the first input end and higher than the first output end.
The first input end, the cooling atomizer and the first output end are sequentially arranged from top to bottom, so that the flue gas input into the chilling tower is fully sprayed by the cooling atomizer, and the temperature of the flue gas is reduced from 200-250 ℃ to 170 ℃.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a plasma collaborative denitration device for waste incineration flue gas according to an embodiment of the present invention;
fig. 2 is the utility model provides a structural schematic diagram of a waste incineration flue gas plasma denitration device in coordination in another embodiment.
In the figure: 10. an exhaust gas generator; 11. an SNCR denitration reactor; 20. a quench tower; 21. cooling the atomizer; 22. a first input terminal; 23. a first output terminal; 30. a mixing and uniform distributing device; 31. a dispenser; 32. A mixer; 40. a smoke return air duct; 41. a second delivery conduit; 42. an auxiliary fan; 43. a self-suction flue damper; 44. an air return flue air door; 45. a self-suction air flow controller; 50. a plasma reactor; 51. A reactor body; 52. a plasma power supply; 53. a discharge electrode; 60. a desulfurizing tower; 61. a desulfurization process water injector; 62. a filter layer; 63. a second input terminal; 64. a second output terminal; 70. an activated carbon injector; 80. a dust remover; 81. a filter bag; 90. a chimney; 91. an induced draft fan.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Most of denitration in the existing market adopts SNCR denitration technology, and ammonia water or urea is used as a reducing agent to remove nitrogen oxides in flue gas. Because the SNCR technology can not ensure NO when the garbage incinerator is just started, the incineration working condition is unstable and the garbage incinerator is in low-load operationXThe indexes reach the standard stably, and blockage and corrosion of an air preheater, a dust remover and the like caused by Ammonium Bisulfate (ABS) and secondary aerosol pollution generated by ammonia and ammonium salt fine particles and the like are caused by excessive spraying of a reducing agent.
In order to solve the technical problem that the nitrogen oxide content in the flue gas can't reach emission standard among the correlation technique, the embodiment of the utility model provides a waste incineration flue gas plasma denitration device in coordination, its aim at reduces the nitrogen oxide content in the flue gas to in the emission prevents to cause jam or corruption to the dust remover. The structure of the plasma synergistic denitration device for waste incineration flue gas is illustrated in the following by combining fig. 1-2.
This msw incineration flue gas plasma denitration device in coordination includes that loop through exhaust gas generator 10, chilling tower 20, the mixing equipartition ware 30 that first pipeline links to each other, desulfurizing tower 60, dust remover 80, draught fan 91 and chimney 90, still includes active carbon sprayer 70, plasma reactor 50 and return flue gas duct 40, wherein: the exhaust gas generator 10 performs preliminary denitration on raw flue gas; the chilling tower 20 cools the flue gas to form a first flue gas; the smoke returning air duct 40 extracts second smoke and conveys the second smoke to the plasma reactor 50; the plasma reactor 50 ionizes water molecules and oxygen molecules in the second flue gas into active free radicals to form backflow flue gas; the mixing and uniform distributing device 30 mixes the first flue gas and the return flue gas to form mixed flue gas; the desulfurizing tower 60 cools the mixed flue gas and absorbs absorbable components in the mixed flue gas; the activated carbon injector 70 injects activated carbon into the mixed flue gas treated by the desulfurizing tower 60; the dust remover 80 removes dust from the flue gas sprayed with the activated carbon to form clean flue gas; the stack 90 discharges clean flue gas.
Optionally, the waste generator 10 includes an SNCR denitration reactor 11, and the flue gas is firstly subjected to preliminary denitration by the SNCR denitration reactor 11 and then is input into the chilling tower 20 to be cooled.
In order to cool the raw flue gas output by the waste gas generator 10, a cooling atomizer 21 is arranged in the chilling tower 20, the chilling tower 20 comprises a first input end 22 and a first output end 23, and the cooling atomizer 21 is arranged relatively lower than the first input end 22 and higher than the first output end 23, so that the raw flue gas is sufficiently sprayed by the cooling atomizer 21 to cool the temperature of the raw flue gas from 200 ℃ to 250 ℃ to 170 ℃.
Optionally, the smoke returning duct 40 includes a second conveying pipeline 41 and a return air flue damper 44, one end of the second conveying pipeline 41 is connected to the first conveying pipeline between the induced draft fan 91 and the chimney 90, the other end of the second conveying pipeline 41 is connected to the mixing and uniform distributing device 30, and the plasma reactor 50 is arranged on the second conveying pipeline 41. Further, the return air flue damper 44 includes a first damper and a second damper, the first damper and the second damper are respectively disposed at two ends of the second conveying pipeline 41, and the plasma reactor 50 is disposed between the first damper and the second damper and disposed adjacent to the mixing and uniformly distributing device 30.
In a specific implementation, the return air duct 40 further includes an auxiliary fan 42, and the auxiliary fan 42 is disposed at one end of the second conveying pipe 41 adjacent to the chimney 90 and between a return air flue damper 44 disposed adjacent to the chimney 90 and the plasma reactor 50. When the exhaust gas generator 10 is in low-load operation, that is, when the system pressure difference between the front of the inlet of the chimney 90 and the front of the inlet of the desulfurizing tower 60 is small, the clean flue gas cannot automatically flow back into the second conveying pipeline 41, and at this time, the clean flue gas passing through the induced draft fan 91 is input into the second conveying pipeline 41 through the return air flue damper 44 arranged near the chimney 90 by the auxiliary fan 42.
Optionally, the return air duct 40 further includes a self-suction air duct damper 43, and the self-suction air duct damper 43 is connected to the second conveying duct 41, specifically, the self-suction air duct damper 43 is disposed between a return air duct damper 44 disposed adjacent to the chimney 90 and the auxiliary fan 42. When the exhaust gas generator 10 is operated at a high load or at a full load, in order to prevent the flow field in the desulfurization tower 60 from being unstable, the external self-suction flue gas is sucked into the plasma reactor 50 through the self-suction flue damper 43 without sucking the clean flue gas between the induced draft fan 91 and the chimney 90.
In order to facilitate the control of the flue gas flow rate at the air door 43 of the self-suction flue, a self-suction flow controller 45 is further disposed between the air door 43 of the self-suction flue and the second conveying pipe 41.
In the actual operation process, if the plasma reactor 50 is arranged in front of the desulfurizing tower 60, since fine particles, i.e., dust and acidic components in the flue gas have strong corrosivity, the equipment is easily abraded and corroded, and the service life and the stability of the plasma reactor 50 are affected, the two ends of the flue gas return duct 40 are respectively connected with the first conveying pipeline and the mixing and uniform distribution device 30 between the induced draft fan 91 and the chimney 90, and the plasma reactor 50 is additionally arranged on the flue gas return duct 40, so that the service life of the plasma reactor 50 is prolonged, and the operation stability of the plasma reactor 50 is improved.
Optionally, the plasma reactor 50 includes a reactor body 51, a plasma power source 52 and a discharge electrode 53, the reactor body 51 is located at one end of the second conveying pipe 41 and is disposed adjacent to the quench tower 20, the discharge electrode 53 is disposed in the reactor body 51, and the plasma power source 52 is disposed outside the reactor body 51 and is connected to the discharge electrode 53.
Generally, the positive electrode of the plasma power source 52 is connected to the discharge electrode 53, and the negative electrode is grounded, so that the discharge electrode 53 injects electric energy into the flue gas, so that O in the flue gas is generated2、H2The molecules such as O are ionized into active free radicals, and the returned flue gas containing the active free radicals is conveyed into the mixing and uniformly distributing device 30.
The mixing and uniform distributing device 30 comprises a distributor 31 and a mixer 32, the chilling tower 20, the distributor 31, the mixer 32 and the desulfurizing tower 60 are sequentially connected, one end of the second conveying pipeline 41 is connected with the distributor 31, at least one group of spray pipes are arranged in the distributor 31, and at least one group of mixing plates which are arranged at a first included angle with the conveying direction of the flue gas are arranged in the mixer 32.
Preferably, the first included angle is 40 ° to 55 °.
Preferably, the mixing plate is circular in shape; alternatively, the mixing plate is elliptical in shape.
When the first flue gas or the backflow flue gas is input into the distributor 31, the distributor 31 divides the first flue gas and the backflow flue gas into at least one flue gas through the spray pipe, then inputs the at least one flue gas into the mixer 32 and fully mixes the flue gas through the mixing plate, and the mixer 32 inputs the fully mixed flue gas into the desulfurizing tower 60.
In the process of mixing the first flue gas and the backflow flue gas, because the backflow flue gas is rich in a large amount of active free radicals, NO, CO and gaseous zero-valent mercury in the first flue gas are easily oxidized into high-valence nitrogen oxides and CO respectively2And mercury ions, and degrading dioxin, furan and the like in the first flue gas into low molecular organic matters such as carboxylic acid and the like and CO2、HCl、H2Inorganic substances such as O are further supplied into the desulfurizing tower 60.
In order to facilitate the removal of fine particles, acidic components and oxidized components in the mixed flue gas, a desulfurization process water injector 61 and a filter layer 62 for injecting water to the mixed flue gas are arranged in the desulfurization tower 60, the desulfurization tower 60 comprises a second input end 63 and a second output end 64, the desulfurization process water injector 61 is relatively higher than the second input end 63 and lower than the second output end 64, and the filter layer is arranged62 are positioned relatively above the desulfurized process water injector 61 and below the second output 64. In the present application, the fine particulate matter is typically dust and the acidic component is typically SO3、SO2HCl, HF, etc., high-valence nitrogen oxides oxidized by radicals, mercury ions, carboxylic acids, and other small-molecule organic substances.
Optionally, the filter layer 62 is provided with a first alkaline substance for reacting with the acidic component and the oxidized component in the mixed flue gas, so that the acidic component and the oxidized component are conveniently removed from the mixed flue gas. In this embodiment, the first alkaline substance may be Ca (OH)2。
Optionally, the number of the filter layers 62 is at least one, and is uniformly distributed in the desulfurization tower 60 along the desulfurization process water injector 61 to the second output end 64.
Because the desulfurization process water injector 61 injects water into the mixed flue gas to reduce the temperature of the mixed flue gas from 170 ℃ to 130-150 ℃, the water absorbs the heat of the mixed flue gas to evaporate, and the water evaporation needs a certain time, an environment of ionized water, hydrophilic micromolecular organic matters such as high-valence nitrogen oxides, carboxylic acids and the like, HCl, HF, SO and the like, and an environment of ionized water are formed in the desulfurizing tower 603、SO2Etc. with Ca (OH)2Reacting to generate nitrate, carboxylate and CaCl2·4H2O、CaF2Sulfate, etc. to be captured by the subsequent dust separator 80.
Optionally, the activated carbon injector 70 is connected to the first conveying pipeline between the desulfurizing tower 60 and the dust collector 80, so as to inject activated carbon into the flue gas treated by the desulfurizing tower 60, thereby adsorbing and trapping dioxin, furan and heavy metal components in the flue gas.
Optionally, the dust collector 80 is a bag collector. In this embodiment, a filter bag 81 is disposed in the bag filter, and a second alkaline substance is disposed in the filter bag 81 and is used for trapping low molecular organic substances or non-toxic inorganic substances such as high-valence nitrogen oxides, HCl, HF, hydrophilic carboxylic acid, and the like in the mixed flue gas. In the present application, the second basic substance may be Ca (OH)2。
In order to accelerate the output of the clean flue gas, an induced draft fan 91 is arranged between the dust collector 80 and the chimney 90, and one end of the flue gas returning duct 40 is arranged on a first conveying pipeline between the induced draft fan 91 and the chimney 90.
To sum up, the utility model discloses a to exhaust gas generator, quench tower, plasma reactor, desulfurizing tower, active carbon sprayer, bag collector and chimney's setting to in getting rid of the tiny particulate matter (dust) in the flue gas, HF, HCl, NOX、SO3、SO2Dioxin, furan, heavy metal and the like and a small amount of CO, so that the smoke gas reaches the standard and is discharged; the plasma reactor is connected with the air return flue, so that the abrasion and corrosion of fine particles and acidic components in the flue gas to equipment are avoided, the service life of the plasma reactor is prolonged, and the operation stability is improved.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above description is only for the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (8)
1. The utility model provides a msw incineration flue gas plasma denitration device in coordination, includes exhaust gas generator, desulfurizing tower and chimney, its characterized in that still includes quench tower, mixed equipartition ware, plasma reactor, active carbon sprayer, dust remover, draught fan and returns the cigarette wind channel, exhaust gas generator quench tower mix the equipartition ware the desulfurizing tower the dust remover the draught fan with the chimney links to each other in proper order through first pipeline, the active carbon sprayer set up in the desulfurizing tower with on the first pipeline between the dust remover, return the one end in cigarette wind channel set up in the draught fan with on the first pipeline between the chimney, return the other end in cigarette wind channel with mix the equipartition ware and link to each other, plasma reactor set up in return on the cigarette wind channel.
2. The plasma collaborative denitration device for the waste incineration flue gas according to claim 1, wherein the smoke return duct comprises a second conveying pipeline, a return air flue air door, a self-suction air flue air door and an auxiliary fan, one end of the second conveying pipeline is connected with the draught fan and the first conveying pipeline between the chimneys, the other end of the second conveying pipeline is connected with the uniform mixing distributor, and the return air flue air door, the plasma reactor, the auxiliary fan and the self-suction air flue air door are arranged on the second conveying pipeline.
3. The plasma collaborative denitration device for the waste incineration flue gas as claimed in claim 2, wherein the return air flue air door comprises a return air flue inlet air door and a return air flue outlet air door, the return air flue inlet air door is arranged at one end of the second conveying pipeline adjacent to the chimney, the return air flue outlet air door is arranged at one end of the second conveying pipeline adjacent to the mixing distributor, the plasma reactor and the auxiliary fan are sequentially arranged between the return air flue inlet air door and the return air flue outlet air door, and the self-suction air flue air door is arranged between the return air flue inlet air door and the auxiliary fan and is connected with the second conveying pipeline.
4. The plasma synergistic denitration device for the waste incineration flue gas as claimed in claim 3, wherein a self-suction air flow controller is further arranged between the self-suction air flue damper and the second conveying pipeline.
5. The plasma synergistic denitration device for the waste incineration flue gas as claimed in claim 2, wherein the plasma reactor comprises a reactor body, a plasma power supply and a discharge electrode, the reactor body is located at one end of the second conveying pipeline and is arranged adjacent to the chilling tower, the discharge electrode is arranged in the reactor body, and the plasma power supply is arranged outside the reactor body and is connected with the discharge electrode.
6. The plasma collaborative denitration device for the waste incineration flue gas as claimed in claim 2, wherein the mixing and uniform distribution device comprises a distributor and a mixer, the chilling tower, the distributor, the mixer and the desulfurization tower are sequentially connected, one end of the second conveying pipeline is connected with the distributor, at least one group of spray pipes is arranged in the distributor, at least one group of mixing plates arranged at a first included angle with the conveying direction of the flue gas are arranged in the mixer, and the mixing plates are circular or elliptical.
7. The plasma synergistic denitration device for waste incineration flue gas as claimed in claim 6, wherein a desulfurization process water injector and a filter layer are arranged in the desulfurization tower, the desulfurization tower comprises a second input end and a second output end, the desulfurization process water injector is arranged relatively higher than the second input end and lower than the second output end, and the filter layer is arranged relatively higher than the desulfurization process water injector and lower than the second output end.
8. The plasma synergistic denitration device for waste incineration flue gas as claimed in claim 1, wherein a cooling atomizer is arranged in the chilling tower, the chilling tower comprises a first input end and a first output end, and the cooling atomizer is relatively lower than the first input end and higher than the first output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920502185.4U CN209968068U (en) | 2019-04-15 | 2019-04-15 | Plasma collaborative denitration device for waste incineration flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920502185.4U CN209968068U (en) | 2019-04-15 | 2019-04-15 | Plasma collaborative denitration device for waste incineration flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209968068U true CN209968068U (en) | 2020-01-21 |
Family
ID=69257834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920502185.4U Active CN209968068U (en) | 2019-04-15 | 2019-04-15 | Plasma collaborative denitration device for waste incineration flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209968068U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114146548A (en) * | 2021-11-15 | 2022-03-08 | 南通山剑石墨设备有限公司 | Waste gas desulfurization and denitrification system |
-
2019
- 2019-04-15 CN CN201920502185.4U patent/CN209968068U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114146548A (en) * | 2021-11-15 | 2022-03-08 | 南通山剑石墨设备有限公司 | Waste gas desulfurization and denitrification system |
| CN114146548B (en) * | 2021-11-15 | 2023-12-29 | 南通山剑石墨设备有限公司 | Exhaust gas desulfurization and denitrification system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203501199U (en) | NOx-controlled denitrification device of glass kiln | |
| CN110756033A (en) | Deep purification treatment system and process for waste incineration power station flue gas | |
| CN108176204A (en) | Flue gas and desulfurizing and denitrifying integrated purification system and purification method | |
| MXPA04006507A (en) | Exhaust gas treatment system. | |
| CN109603462A (en) | A kind of technique using plasma purification flue gas of garbage furnace | |
| CN108043210A (en) | A kind of desulfurization of coke oven flue gas and dedusting denitrification integral system | |
| WO2021088526A1 (en) | Flue gas multi-pollutant synergistic purification process and apparatus | |
| WO2020098574A1 (en) | Method and apparatus for purifying waste incineration flue gas | |
| CN113144862A (en) | Biomass incineration power generation flue gas ultralow emission system and emission method thereof | |
| CN109550341A (en) | Alkali recovery furnace flue gas minimum discharge device and flue gas processing method | |
| CN209968068U (en) | Plasma collaborative denitration device for waste incineration flue gas | |
| CN215388629U (en) | Pollutant collaborative purification system for waste incineration flue gas | |
| CN210206404U (en) | Desulfurization, denitrification and dust removal integrated device for industrial kiln | |
| CN212492330U (en) | Active coke combined desulfurization and denitrification system based on pre-oxidation | |
| CN112915759B (en) | Solid waste pyrolysis flue gas cooperative treatment process | |
| CN113289475A (en) | Method for reducing ammonia escape after SNCR or SCR denitration | |
| CN111905541A (en) | Pre-oxidation-based active coke combined desulfurization and denitrification system and method | |
| CN111085092A (en) | Desulfurization and dust removal device and desulfurization and dust removal method for gas boiler | |
| CN115090091B (en) | Device and method for removing escaped ammonia in waste incineration flue gas by using citric acid | |
| CN110115916A (en) | The tapping equipment and technique of gas boiler flue gas | |
| CN112915760B (en) | Solid waste pyrolysis flue gas cooperative treatment system | |
| CN214210020U (en) | Ceramic flue gas treatment system | |
| CN104075335A (en) | Process and device for realizing up-to-standard emission of boiler flue gas with coupling technology | |
| CN210814644U (en) | Denitration, desulfurization and dust removal system of biomass boiler | |
| CN212440687U (en) | Desulfurizing and dust-removing device for gas boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |