CN210229632U - Flue gas spiral diffusion denitrification facility - Google Patents
Flue gas spiral diffusion denitrification facility Download PDFInfo
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- CN210229632U CN210229632U CN201920956699.7U CN201920956699U CN210229632U CN 210229632 U CN210229632 U CN 210229632U CN 201920956699 U CN201920956699 U CN 201920956699U CN 210229632 U CN210229632 U CN 210229632U
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Abstract
The utility model relates to a flue gas spiral diffusion denitration device, which comprises a pipeline main body, wherein two end parts of the pipeline main body are respectively provided with a flue gas inlet pipeline and a flue gas outlet pipeline, the pipeline main body is sequentially divided into a leading-in section, a mixing section, a cooling section and a reaction section, a burner is arranged between the leading-in section and the flue gas inlet pipeline, a reducing agent injection device is arranged on the mixing section, a steam superheater is arranged in the cooling section, a denitration reactor is arranged in the reaction section, and the side-by-side parts of the flue gas inlet pipeline and the flue gas outlet pipeline are provided with an air preheater; the flue gas outlet pipeline is communicated with the chimney, an electric dust remover is further arranged between the flue gas outlet pipeline and the chimney, and the device utilizes a low-temperature SCR denitration technology to remove the pins. The utility model discloses have the reduction energy consumption, reduce running cost, make reductant and flue gas intensive mixing, alleviate beneficial effect such as "chimney rain" production.
Description
Technical Field
The utility model relates to a denitrification facility especially relates to a flue gas spiral diffusion denitrification facility, belongs to chemical waste liquid pollutant and administers technical field.
Background
As an important device for supplying heat and steam, the industrial boiler is widely applied to various fields of national production and life. At present, more than 60 million industrial boilers are used in China, and more than 40 million industrial boilers for coal combustion account for more than 80% of the total number of the industrial boilers, and the annual consumption of standard coal is about 4 hundred million tons, which accounts for 1/4 of the total coal consumption of China. In a certain period of time, the energy consumption structure of China still takes coal as the main material. Therefore, the coal-fired industrial boiler is not changed in a short period of time in the aspect that the industrial boiler is dominant.
NOXIs an important atmospheric pollutant and is an important factor for triggering acid rain, haze and photochemical smog. The environmental protection standards of all parts of China are all on NOXThe amount of emissions is severely limited. In the field of industrial and domestic boilers, coal or petroleum has traditionally been used as a fuel. However, due to the limitation of the characteristics of the fuels, the difficulty in realizing low nitrogen oxide emission is very high, and tail gas denitration treatment is required to realize the standard of pollutant emission. However, due to the limitation of the characteristics of the fuels, the difficulty in realizing low nitrogen oxide emission is very high, and tail gas denitration treatment is required to realize the standard of pollutant emission.
Flue gas denitration belongs to the post-combustion treatment technology, and a flue gas denitration device is required to be installed in a smoke exhaust system of many developed countries. The method for denitration of flue gas is more, but currently, a large number of industrial applications are only a selective catalytic reduction method and a selective non-catalytic reduction method, other methods are in experimental research stages or pilot-plant test stages at present, and the selective catalytic reduction method is the most advanced denitration technology with the highest efficiency in the denitration technologies applied at present. The principle of SCR denitration is as follows: liquid ammonia, ammonia water or urea are used as reducing agents, ammonia gas is evaporated from the liquid ammonia, the ammonia water or the urea through pyrolysis, the ammonia gas and air are diluted and then sprayed into a flue gas pipeline through an ammonia spraying device, the diluted flue gas and the ammonia gas are fully mixed, and nitrogen and water are generated under the action of a catalyst.
At present, the mature medium-temperature SCR denitration technology is applied, the temperature of flue gas required by reaction is generally 300-450 ℃, the temperature of the flue gas after desulfurization is further reduced to 60-80 ℃, the temperature of the flue gas needs to be raised to the optimal temperature range of a catalyst, the energy consumption is high, the operation cost is high, in addition, the mixing efficiency of a reducing agent sprayed into a flue gas channel and the flue gas is low, in addition, the temperature of the flue gas after denitration can be gradually reduced in the process of discharging the flue gas to the atmosphere through a chimney, so that a large amount of moisture in wet flue gas is condensed into small droplets, the small droplets collide with each other to form large droplets, the droplets with larger diameters cannot be completely evaporated in the air in the falling process, so that chimney rain can be formed in a certain area, and the rain drops have larger corrosiveness on buildings and equipment.
SUMMERY OF THE UTILITY MODEL
The utility model discloses mainly be to the mixed inefficiency of current denitrification facility energy consumption big, running cost high, reductant and flue gas and form the problem of "chimney rain" around the chimney easily, provide one kind can reduce the energy consumption, reduce the running cost, make reductant and flue gas intensive mixing, alleviate the flue gas spiral diffusion denitrification facility of "chimney rain" production.
The purpose of the utility model is mainly realized by the following scheme:
a spiral diffusion denitration device for flue gas comprises a pipeline main body, wherein a flue gas inlet pipeline and a flue gas outlet pipeline are respectively arranged at two end parts of the pipeline main body, the pipeline main body is sequentially divided into a leading-in section, a mixing section, a cooling section and a reaction section from the flue gas inlet pipeline to the flue gas outlet pipeline, a burner is arranged between the leading-in section and the flue gas inlet pipeline, a reducing agent injection device is arranged on the mixing section, a steam superheater is arranged in the cooling section, a denitration reactor is arranged in the reaction section, and air preheaters are arranged at the side-by-side parts of the flue gas inlet pipeline and the flue gas outlet pipeline; the smoke outlet pipeline is communicated with the chimney, and an electric dust remover is further arranged between the smoke outlet pipeline and the chimney. Flue gas spiral diffusion denitrification facility install behind desulphurization unit, flue gas after the semidry process desulfurization can realize good denitration and disappear white effect through this flue gas spiral diffusion denitrification facility.
Preferably, the lower part in the chimney is provided with one or more stages of rotational flow plates, a flushing pipe is arranged below the rotational flow plates, and the water outlet direction of the flushing pipe is consistent with the flow direction of the flue gas in the chimney; the cyclone plate is characterized in that a diversion trench is further arranged below the cyclone plate, one end of the diversion trench is arranged at the joint of the cyclone plate and the inner wall of the chimney, and the other end of the diversion trench is inclined downwards to the center of the chimney.
Preferably, the whirl plate includes circular support, and circular support center is equipped with the retainer plate, be equipped with a plurality of blades between retainer plate and the circular support, still be provided with the connecting hole on the circular support for be fixed in the chimney with the whirl plate.
Preferably, the upper part in the chimney is provided with a heat exchange tube, the heat exchange tube is spirally arranged in the chimney, a plurality of obliquely arranged flow deflectors are distributed on the inner wall of the chimney between the heat exchange tube and the rotational flow plate at intervals in an annular mode, so that the flue gas spirally flows in the chimney and passes through the heat exchange tube, and the spiral flowing direction of the flue gas is consistent with the spiral direction of the heat exchange tube.
Preferably, the lower end of the heat exchange tube is a hot medium inlet, the upper end of the heat exchange tube is a cold medium outlet, the two ends of the heat exchange tube penetrate out of the chimney, and the distance between every two adjacent spiral rings of the heat exchange tube is 50-100 mm.
Preferably, the reducing agent injection device comprises an ammonia water storage tank, an evaporator, a dilution fan and a nozzle, one end of the evaporator is communicated with the ammonia water storage tank through a pipeline, the other end of the evaporator is connected with the nozzle through a pipeline, the nozzle is arranged at the inlet end of the mixing section and used for spraying the reducing agent into the mixing section, so that flue gas and the reducing agent are fully mixed and subjected to pre-denitration treatment, and the dilution fan is connected between the nozzle and the evaporator and used for blowing a large amount of air to dilute ammonia gas.
Preferably, a contraction section is additionally arranged between the introduction section and the mixing section, so that the flue gas enters the mixing section from the introduction section through the contraction section.
Preferably, flue gas guide plates are arranged at corners of the cooling section and the reaction section so as to optimize a flue gas flow field.
Preferably, an economizer is further arranged in the cooling section, and flue gas firstly passes through the steam superheater and then passes through the economizer.
Preferably, the denitration reactor comprises one or more vertically stacked catalyst layers, the catalyst layers are honeycomb type, flat plate type or corrugated plate type, soot blowers are arranged on the catalyst layers, and the soot blowers are superheated steam soot blowers or ultrasonic soot blowers.
Therefore, the utility model discloses possess following advantage: (1) the utility model utilizes the flue gas waste heat and the coke oven gas burner to improve the flue gas temperature, and has less energy consumption and low operation cost; (2) the flue gas after temperature rise enters the contraction section through the introduction section, the flow speed is increased through the contraction section to form turbulent flow, and the turbulent flow is uniformly mixed with the reducing agent sprayed by the reducing agent spraying device; (3) the chimney is internally provided with a rotational flow plate, a flow deflector and a heat exchange tube, when smoke enters the chimney from a smoke outlet pipeline, fog drops in the smoke are thrown to the inner wall of the chimney or directly blocked to be separated from the smoke by utilizing the centrifugal separation principle of blades of the rotational flow plate, so that the fog drops are intercepted, the defogging and dehumidifying effects are achieved, and the blades can be prevented from scaling by the arranged flushing tube; (4) the flue gas gets into the water conservancy diversion piece, divide into the multilayer flue gas by the water conservancy diversion piece, every layer of flue gas all independently rotates upwards, can effectively reduce the velocity of flow of inner wall department like this, the flue gas spiral flows through the heat exchange tube, and the spiral flow direction of flue gas is unanimous with the spiral direction of heat exchange tube, the flue gas accomplishes the heat transfer at the in-process of rotatory flow, effectively increase the contact time of flue gas and heat exchange tube, the flue gas is discharged at once when having the highest temperature after being heated, the flue gas of this moment has higher diffusion velocity, chimney export white fog is not obvious, further improve the flue gas and disappear white effect, alleviate "chimney rain" and produce.
Drawings
FIG. 1 is a schematic structural diagram of the spiral diffusion denitration device for flue gas of the present invention;
FIG. 2 is a schematic structural view of a chimney in the flue gas spiral diffusion denitration device of the utility model;
FIG. 3 is a front view of a cyclone plate in the flue gas spiral diffusion denitration device of the present invention;
FIG. 4 is a top view of a swirling plate in the flue gas spiral diffusion denitration device of the present invention;
FIG. 5 is a schematic structural view of a flow deflector in the spiral diffusion denitration device for flue gas of the present invention;
fig. 6 is the structure schematic diagram of the heat exchange tube in the flue gas spiral diffusion denitration device of the utility model.
Illustration of the drawings: 1-a pipeline main body, 2-a flue gas inlet pipeline, 3-a flue gas outlet pipeline, 4-a leading-in section, 5-a mixing section, 6-a cooling section, 7-a reaction section, 8-a combustor, 9-a reducing agent injection device, 10-a steam superheater, 11-a denitration reactor, 12-an air preheater, 13-an electric precipitator, 14-a chimney, 15-a swirl plate, 16-an ammonia water storage tank, 17-an evaporator, 18-a dilution fan, 19-a nozzle, 20-a contraction section, 21-a flue gas guide plate, 22-an economizer, 23-a catalyst layer, 24-a flushing pipe, 25-a guide groove, 26-a circular bracket, 27-a fixed ring, 28-a blade, 29-a connecting hole and 30-a heat exchange pipe, 31-guide plate, 32-heat medium inlet and 33-cold medium outlet.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
As shown in figure 1, the utility model provides a technical proposal, a flue gas spiral diffusion denitration device, the flue gas spiral diffusion denitration device comprises a pipeline main body 1, wherein a flue gas inlet pipeline 2 and a flue gas outlet pipeline 3 are respectively arranged at two end parts of the pipeline main body 1, the flue gas inlet pipeline 2 is connected with the flue gas outlet pipeline 3, the pipeline main body 1 is sequentially divided into a leading-in section 4, a mixing section 5, a cooling section 6 and a reaction section 7, a burner 8 is arranged between the leading-in section 4 and the flue gas inlet pipeline 2, a reducing agent injection device 9 is arranged on the mixing section 5, a steam superheater 10 is arranged in the cooling section 6, a denitration reactor 11 is arranged in the reaction section 7, a flue gas guide plate 21 is arranged at the corner of the cooling section 6 and the reaction section 7, so as to optimize the flue gas flow field, and play the roles of minimizing the pressure drop of the system and minimizing the guide plate. An economizer 22 is further arranged in the cooling section 6, and flue gas firstly passes through the steam superheater 10 and then flows through the economizer 22; the side by side parts of the flue gas inlet pipeline 2 and the flue gas outlet pipeline 3 are provided with an air preheater 12, so that heat exchange between high-temperature flue gas in the flue gas outlet pipeline 3 and low-temperature flue gas in the flue gas inlet pipeline 2 is realized, the flue gas outlet pipeline 3 is communicated with a chimney 14, and an electric dust remover 13 is further arranged on the flue gas outlet pipeline 3. Flue gas spiral diffusion denitrification facility install behind desulphurization unit, flue gas after the semidry process desulfurization can realize good denitration and disappear white effect through this flue gas spiral diffusion denitrification facility.
As shown in fig. 2, a first-stage or several-stage swirl plate 15 is arranged at the lower part in the chimney 14, the swirl plate 15 is made of an alloy material (such as C276) or an anticorrosive material (such as lining glue and coating glass flakes), a flushing pipe 24 is arranged below the swirl plate 15, the water outlet direction of the flushing pipe 24 is consistent with the flow direction of flue gas in the chimney 14, the flushing pipe 24 is externally connected with a spraying system, and the flushing pipe 24 flushes the swirl plate 15 every 2-3 hours; a diversion trench 25 is further arranged below the swirl plate 15, one end of the diversion trench 25 is arranged at the joint of the swirl plate 15 and the inner wall of the chimney 14, and the other end of the diversion trench is obliquely and downwardly deflected to the center of the chimney 14; as shown in fig. 3 and 4, the swirling plate 15 includes a circular support 26, a fixing ring 27 is disposed at the center of the circular support 26, a plurality of blades 28 are disposed between the fixing ring 27 and the circular support 26, the circular support 26 is further provided with connecting holes 29, the number of the connecting holes 29 is three or more, the connecting holes 29 are uniformly distributed at the edge of the circular support 26 and are used for fixing the swirling plate 15 in the chimney 14, a heat exchange pipe 30 is disposed at the inner upper portion of the chimney 14, the heat exchange pipe 30 is as shown in fig. 5, and the heat exchange pipe 30 is spirally disposed in the chimney 14; as shown in fig. 6, a plurality of obliquely arranged flow deflectors 31 are annularly and alternately distributed on the inner wall of the chimney 14 between the heat exchange tube 30 and the swirl plate 15, so that the flue gas spirally flows through the heat exchange tube 30 in the chimney 14, the flow deflectors 31 are made of common carbon steel plates, glass flake anticorrosive layers are arranged on the surfaces of the flow deflectors, the spiral flow direction of the flue gas is consistent with the spiral direction of the heat exchange tube 30, the lower end of the heat exchange tube 30 is a heat medium inlet 32, the upper end of the heat exchange tube 30 is a cold medium outlet 33, the heat medium enters the heat exchange tube 30 from the heat medium inlet 32, the heat exchange with the flue gas is completed during flowing, the heat medium becomes a cold medium, the cold medium is discharged from the cold medium outlet 33, the heating of the flue gas is realized, the whitening effect is realized by increasing the temperature of the flue gas, the heat exchange tube 30 is fixed on the inner, the distance between two adjacent spiral rings of the heat exchange tube 30 is 50-100 mm.
The reducing agent injection device 9 comprises an ammonia water storage tank 16, an evaporator 17, a dilution fan 18 and a nozzle 19, wherein one end of the evaporator 17 is communicated with the ammonia water storage tank 16 through a pipeline, the other end of the evaporator is connected with the nozzle 19 through a pipeline, the nozzle 19 is arranged at the inlet end of the mixing section 5 and is used for injecting a reducing agent into the mixing section 5 so that smoke and the reducing agent are fully mixed and subjected to pre-denitration treatment, the dilution fan 18 is connected between the nozzle 19 and the evaporator 17 and is used for blowing a large amount of air to dilute ammonia, and a contraction section 20 is additionally arranged between the introduction section 4 and the mixing section 5 so that the smoke enters the mixing section 5 from the introduction section 4 through the table-shaped contraction section 20; the denitration reactor 11 comprises one or more vertically stacked low-temperature catalyst layers 23, the low-temperature catalyst layers 23 are honeycomb type, flat plate type or corrugated plate type, soot blowers are arranged on the low-temperature catalyst layers 23, and the soot blowers are superheated steam soot blowers or ultrasonic soot blowers.
The utility model discloses a flue gas spiral diffusion denitrification facility is connected behind the desulphurization unit, and flue gas after semidry process desulfurization enters into flue gas inlet pipe 2 through the effect of draught fan, and the flue gas temperature is 60-80 ℃ this moment, preheats through air heater 12 and combustor 8 preliminarily, and the flue gas temperature reaches 230-; secondly, the flue gas after temperature rise enters the contraction section 20 through the leading-in section 4, the flow speed is increased through the contraction section 20 to form turbulent flow, the turbulent flow is uniformly mixed with the reducing agent sprayed by the reducing agent spraying device 9, and a part of the reducing agent is mixed with NO in the flue gasXCarrying out high-temperature rapid reaction, and allowing the other part of reducing agent to flow to the cooling section 6 along with the gas flow; thirdly, mixingThe flue gas enters a steam superheater 10, a serpentine steam superheater is adopted, the steam superheater is provided with a relatively dense pipe group and is transversely and longitudinally flushed by the flue gas, the flue gas mainly transfers heat to a pipe in a convection mode and also has a part of radiation heat absorption capacity, the steam absorbs the heat of the high-temperature flue gas and is sent to a steam turbine for cogeneration, the flue gas is discharged from an air preheater 12 and then enters an economizer 22 to heat boiler feed water, the energy utilization efficiency is improved, the flue gas temperature is reduced to 180 degrees and 200 degrees, and the economizer 22 adopts a cast iron horizontal economizer; then, the flue gas is discharged from the economizer 22 and enters the denitration reactor 11, secondary reaction is carried out under the action of the low-temperature SCR catalyst layer 23, NOx in the flue gas reacts with NH3 to generate N2 and H2O, denitration is carried out, and the catalyst layer 23 is in a honeycomb shape; finally, the denitrated flue gas enters the flue gas outlet pipeline 3, the waste heat is transferred to the flue gas in the flue gas outlet pipeline 3 through the air preheater 12, the denitrated and cooled flue gas removes particle smoke dust through the electric dust remover 13, so that the amount of the smoke dust discharged into the atmosphere is greatly reduced, the flue gas after passing through the electric dust remover 13 is discharged into the atmosphere through the chimney 14, a rotational flow plate 15, a flow deflector 31 and a heat exchange pipe 30 are arranged in the chimney 14, when the flue gas enters the chimney 14 from the flue gas outlet pipeline 3, the centrifugal separation principle of blades 28 of the rotational flow plate 15 is utilized, fog drops in the flue gas are thrown to the inner wall of the chimney 14 or are directly blocked to be separated from the flue gas, so that the fog drops are intercepted, the defogging and dehumidifying effects are achieved, and the provided flushing pipe 24 can prevent the blades from scaling; the flue gas gets into the water conservancy diversion piece 31, divide into the multilayer flue gas by the water conservancy diversion piece 31, every layer of flue gas all independently rotates upwards, can effectively reduce the velocity of flow of inner wall department like this, the flue gas spiral flows through heat exchange tube 30, and the spiral flow direction of flue gas is unanimous with the spiral direction of heat exchange tube 30, the flue gas accomplishes the heat transfer at the in-process of rotatory flow, effectively increase the contact time of flue gas and heat exchange tube, the flue gas is discharged at once when having the highest temperature after being heated, the flue gas of this moment has higher diffusion velocity, chimney export white fog is not obvious, further improve the flue gas and disappear white effect, alleviate "chimney rain" and produce.
It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a flue gas spiral diffusion denitrification facility which characterized in that: the spiral diffusion denitration device for the flue gas comprises a pipeline main body (1), wherein a flue gas inlet pipeline (2) and a flue gas outlet pipeline (3) are respectively arranged at two end parts of the pipeline main body (1), the pipeline main body (1) is sequentially divided into a leading-in section (4), a mixing section (5), a cooling section (6) and a reaction section (7) from the flue gas inlet pipeline (2) to the flue gas outlet pipeline (3), a combustor (8) is arranged between the leading-in section (4) and the flue gas inlet pipeline (2), a reducing agent injection device (9) is arranged on the mixing section (5), a steam superheater (10) is arranged in the cooling section (6), a denitration reactor (11) is arranged in the reaction section (7), and air preheaters (12) are arranged at the side by side parts of the flue gas inlet pipeline (2) and the flue gas outlet pipeline (3); the flue gas outlet pipeline (3) is communicated with a chimney (14), and an electric dust remover (13) is further arranged between the flue gas outlet pipeline (3) and the chimney (14).
2. The spiral diffusion denitration device for flue gas as claimed in claim 1, wherein: a first-stage or multi-stage swirl plate (15) is arranged at the lower part in the chimney (14), a flushing pipe (24) is arranged below the swirl plate (15), and the water outlet direction of the flushing pipe (24) is consistent with the flow direction of flue gas in the chimney (14); the cyclone plate (15) below still is equipped with guiding gutter (25), handing-over department of cyclone plate (15) and chimney (14) inner wall is located to guiding gutter (25) one end, and the other end is inclined downwards to the chimney (14) center.
3. The spiral diffusion denitration device for the flue gas as claimed in claim 2, wherein: the cyclone plate (15) comprises a circular support (26), a fixing ring (27) is arranged at the center of the circular support (26), a plurality of blades (28) are arranged between the fixing ring (27) and the circular support (26), and a connecting hole (29) is further formed in the circular support (26) and used for fixing the cyclone plate (15) in the chimney (14).
4. The spiral diffusion denitration device for flue gas as claimed in claim 3, wherein: the upper portion is equipped with heat exchange tube (30) in chimney (14), heat exchange tube (30) spiral set up in chimney (14), annular interval distribution has a plurality of water conservancy diversion pieces (31) that the slope set up on chimney (14) inner wall between heat exchange tube (30) and whirl board (15), makes the flue gas at chimney (14) internal spiral flow through heat exchange tube (30), and the spiral flow direction of flue gas is unanimous with the spiral direction of heat exchange tube (30).
5. The spiral diffusion denitration device for flue gas as claimed in claim 4, wherein: the lower end of the heat exchange tube (30) is a heat medium inlet (32), the upper end of the heat exchange tube is a cold medium outlet (33), the two ends of the heat exchange tube (30) penetrate out of the chimney (14), and the distance between every two adjacent spiral rings of the heat exchange tube (30) is 50-100 mm.
6. The spiral diffusion denitration device for flue gas as claimed in claim 1, wherein: reducing agent injection apparatus (9) include aqueous ammonia storage tank (16), evaporimeter (17), dilution fan (18) and nozzle (19), evaporimeter (17) one end is passed through pipeline and aqueous ammonia storage tank (16) intercommunication, and the other end passes through the pipeline and is connected with nozzle (19), nozzle (19) set up in the entrance point of mixing section (5), be used for to spout the reducing agent in mixing section (5), make the flue gas with the reducing agent intensive mixing and denitration treatment in advance, dilution fan (18) are connected between nozzle (19) and evaporimeter (17) for it dilutes the ammonia to drum into a large amount of air.
7. The spiral diffusion denitration device for the flue gas as claimed in claim 6, wherein: a contraction section (20) is additionally arranged between the introduction section (4) and the mixing section (5) so that the flue gas enters the mixing section (5) from the introduction section (4) through the contraction section (20).
8. The spiral diffusion denitration device for flue gas as claimed in claim 1, wherein: and flue gas guide plates (21) are arranged at the corners of the cooling section (6) and the reaction section (7) so as to optimize a flue gas flow field.
9. The spiral diffusion denitration device for the flue gas as claimed in claim 8, wherein: an economizer (22) is further arranged in the cooling section (6), and flue gas firstly passes through the steam superheater (10) and then flows through the economizer (22).
10. The spiral diffusion denitration device for flue gas as claimed in claim 1, wherein: the denitration reactor (11) comprises one or more vertically stacked catalyst layers (23), the catalyst layers (23) are honeycomb type, flat plate type or corrugated plate type, soot blowers are arranged on the catalyst layers (23), and the soot blowers are superheated steam soot blowers or ultrasonic soot blowers.
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| CN201920956699.7U CN210229632U (en) | 2019-06-24 | 2019-06-24 | Flue gas spiral diffusion denitrification facility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180386A (en) * | 2019-06-24 | 2019-08-30 | 台州临港热电有限公司 | A kind of flue gas spiral diffusion denitrification apparatus and method of denitration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180386A (en) * | 2019-06-24 | 2019-08-30 | 台州临港热电有限公司 | A kind of flue gas spiral diffusion denitrification apparatus and method of denitration |
| CN110180386B (en) * | 2019-06-24 | 2024-03-26 | 台州临港热电有限公司 | Flue gas spiral diffusion denitration device and denitration method |
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