CN217367574U - Flue gas denitration equipment - Google Patents
Flue gas denitration equipment Download PDFInfo
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- CN217367574U CN217367574U CN202121026235.XU CN202121026235U CN217367574U CN 217367574 U CN217367574 U CN 217367574U CN 202121026235 U CN202121026235 U CN 202121026235U CN 217367574 U CN217367574 U CN 217367574U
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- flue gas
- denitration
- negative pressure
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- filtering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The application discloses flue gas denitration equipment includes: the denitration device comprises a filtering device (100), a denitration device (200), a negative pressure device (300), a purification device (400) and an air pump (500), wherein the filtering device (100) comprises a filter screen (110), and the filter screen (110) divides the inner space of the filtering device (100) into a first space and a second space; the negative pressure device (300) and the purification device (400) are arranged in the inner space of the denitration device (200), and the negative pressure device (300) is positioned above the purification device (400); the air pump (500) is arranged at the top of the filtering device (100), the input end of the air pump (500) is communicated with the second space, and the output end of the air pump (500) is communicated with the denitration device (200).
Description
Technical Field
The application relates to the technical field of flue gas denitration, and especially relates to a flue gas denitration device.
Background
In the industrial field, a large amount of tail flue gas can be generated after the boiler burns, the flue gas contains harmful substances and can pollute the environment, and in order to avoid the situation, the flue gas is generally subjected to processes of dust removal, denitration and the like before being discharged.
In order to save energy, the existing biomass boiler taking biomass as fuel utilizes renewable agriculture and forestry residues to replace burning coal as boiler fuel, but the biomass fuel has high ash content and light ash content, so that most of fly ash can be brought into a tail heating surface by flue gas, and the purification effect of the flue gas is influenced.
SUMMERY OF THE UTILITY MODEL
The application discloses flue gas denitration equipment to solve the lower problem of gas cleaning efficiency of present boiler.
In order to solve the above problems, the following technical solutions are adopted in the present application:
the embodiment of the application discloses flue gas denitration equipment includes: the device comprises a filtering device, a denitration device, a negative pressure device, a purification device and an air pump, wherein the filtering device comprises a filter screen, and the internal space of the filtering device is divided into a first space and a second space by the filter screen; the negative pressure device and the purification device are arranged in the inner space of the denitration device, and the negative pressure device is positioned above the purification device; the air pump is arranged at the top of the filtering device, the input end of the air pump is communicated with the second space, and the output end of the air pump is communicated with the denitration device.
The technical scheme who this application adopted can reach following beneficial effect:
the embodiment of the application discloses flue gas denitration equipment, through setting up in the inside negative pressure mechanism of denitrification facility, negative pressure mechanism can produce the upwards discharge of a large amount of gas of negative pressure extraction, make the flue gas that gets into denitrification facility through the output of air pump after filter equipment filters can the upward movement, at the in-process that rises, the flue gas can react with the purifier of negative pressure device below, thereby carry out the denitration to the flue gas, get rid of NOx in the flue gas, make the harmful substance in the flue gas can be got rid of comparatively high-efficiently, through this kind of mode, can solve the lower problem of the flue gas purification efficiency of present boiler.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic external structural diagram of a flue gas denitration apparatus disclosed in an embodiment of the present application;
fig. 2 is a schematic diagram of an internal structure of a denitration device of a flue gas denitration apparatus disclosed in an embodiment of the present application;
fig. 3 is a schematic diagram of an internal structure of a filtering apparatus of a flue gas denitration device disclosed in an embodiment of the present application.
Description of reference numerals:
100-filtering device, 110-filtering screen, 120-opening, 130-collecting vessel, 200-denitrating device, 300-negative pressure device, 310-lantern ring, 320-bracket, 330-driving mechanism, 340-fan, 400-purifying device, 410-filler, 420-sleeve, 500-air pump, 600-water pump, 700-inlet pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, 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 application.
Technical solutions disclosed in the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 shows an external structure schematic diagram of a flue gas denitration device, as shown in fig. 1, an embodiment of the application discloses a flue gas denitration device, and the disclosed flue gas denitration device includes: filter equipment 100, denitrification facility 200, negative pressure equipment 300, purifier 400 and air pump 500, filter equipment 100 passes through air pump 500 intercommunication with denitrification facility 200, when air pump 500 carries out the during operation, can extract the flue gas of boiler, the flue gas filters the back through filter equipment 100, negative pressure equipment 300 extracts a large amount of gases for the flue gas gets into denitrification facility 200, reacts with purifier 400, thereby can realize carrying out the mesh of denitration to the flue gas.
Wherein, specifically, filter equipment 100 includes filter screen 110, and filter screen 110 divides into first space and second space with filter equipment 100's inner space, and the flue gas of boiler gets into filter equipment 100 after, passes through first space and second space in proper order, is filtered by filter screen 110, filters the large particulate matter in the flue gas.
It should be noted that, flue gas is generated after combustion in a boiler, and in order to remove harmful substances in the flue gas, processes such as dust removal and denitration are generally performed, and the dust removal and denitration processes have different requirements for the content of fly ash in the flue gas. Through the filter screen 110, the requirements of dust removal and denitration processes on the fly ash content can be met, and the influence of the excessive fly ash content in the flue gas on the denitration device 200 in the flue gas denitration equipment is avoided.
The flue gas filtered by the filtering device 100 enters the denitration device 200, the negative pressure device 300 and the purification device 400 are arranged in the internal space (not shown in fig. 1) of the denitration device 200, a large amount of gas can be extracted by the negative pressure generated by the negative pressure device 300 through the negative pressure device 300 in the internal space of the denitration device 200 and is discharged upwards, so that the flue gas entering the denitration device 200 rises upwards, the negative pressure device 300 is positioned above the purification device 400, and in the process of rising upwards, the flue gas reacts with the purification device 400, and then the nitrogen oxide NOx in the flue gas can be removed and purified. It should be noted that NOx is a gas with pungent odor and strong toxicity, and not only has serious harm to buildings, crops and soil, but also has great toxicity to human body.
In addition, air pump 500 sets up in filter equipment 100's top, and air pump 500's input and second space intercommunication, air pump 500's output and denitrification facility 200 intercommunication, in specific working process, the flue gas of air pump 500's input extraction boiler for the flue gas passes through first space and second space in proper order, and filter the large granule material in the flue gas by filter screen 110, the flue gas after the filtration gets into denitrification facility 200 through the output, purify the flue gas by denitrification facility 200, get rid of the NOx in the flue gas.
The embodiment of the application discloses flue gas denitration equipment, through setting up in the inside negative pressure mechanism of denitrification facility, negative pressure mechanism can produce the upwards discharge of a large amount of gas of negative pressure extraction, make the flue gas that gets into denitrification facility through the output of air pump after filter equipment filters can the upward movement, at the in-process that rises, the flue gas can react with the purifier of negative pressure device below, thereby carry out the denitration to the flue gas, get rid of NOx in the flue gas, make the harmful substance in the flue gas can be got rid of comparatively high-efficiently, through this kind of mode, can solve the lower problem of the flue gas purification efficiency of present boiler.
Fig. 2 shows a schematic diagram of an internal structure of a denitration device of a flue gas denitration apparatus, and as shown in fig. 2, the negative pressure device 300 may include: the denitration device comprises a lantern ring 310, a support 320, a driving mechanism 330 and a fan 340, wherein the lantern ring 310 is fixed on the inner wall of the denitration device 200, the support 320 is arranged on the lantern ring 310, the driving mechanism 330 is connected with the support 320, the driving mechanism 330 can be fixed through the support 320, the driving mechanism 330 is prevented from being unstable in structure, the fan 340 is connected with the driving mechanism 330, and the driving mechanism 330 drives the fan 340 to rotate. In a specific working process, the driving mechanism 330 can drive the fan 340 to rotate, after the driving mechanism 330 drives the fan 340 to rotate, a large amount of gas can be extracted by generated negative pressure to be discharged upwards, the smoke gas also moves upwards, and in the process of rising of the smoke gas, the smoke gas can react with the purification device 400 to remove harmful substances in the smoke gas.
The driving mechanism 330 may be of various types, such as a hydraulic driving device, a pneumatic driving device, a motor driving device, a mechanical driving device, etc., which is not limited in this embodiment of the application specifically, in a case that the driving mechanism 330 is a motor driving device, the motor driving device may drive the fan 340 to rotate, so as to generate a negative pressure, and the generated negative pressure may extract a large amount of gas to drive the flue gas to move upwards and react with the purification apparatus 400.
In order to avoid the driving mechanism 330 being blocked by the smoke, in an optional scheme, a protective shell is arranged outside the driving mechanism 330, and through the protective shell, the driving mechanism 330 can be ensured to work stably, so that the driving mechanism 330 is prevented from being affected by impurities in the smoke, and the service life of the driving mechanism 330 is prolonged.
In one possible implementation, as shown in fig. 2, the purification apparatus 400 may include: the flue gas purification device comprises a filler 410 and a sleeve 420, wherein the sleeve 420 is fixed on the inner wall of the denitration device 200 and is positioned below the negative pressure device 300, the filler 410 is filled in the sleeve 420, and when the negative pressure device 300 extracts flue gas and moves upwards, the flue gas reacts with the filler 410 to remove harmful substances in the flue gas and purify the flue gas.
In order to make the flue gas fully react with the filler 410, optionally, the filler 410 may be a reducing agent, and the filtered flue gas may undergo an oxidation-reduction reaction with the reducing agent to remove NOx in the flue gas, thereby accelerating the purification efficiency of the flue gas.
Fig. 3 shows a schematic diagram of an internal structure of a filtering apparatus of a flue gas denitration device, and as shown in fig. 3, the filtering apparatus 100 may further include: opening 120 and collection dish 130, opening 120 sets up in filter equipment 100's bottom, and communicate with first space, collect dish 130 cladding in opening 120, after the flue gas of boiler loops through first space and second space, can be filtered by filter screen 110, filter large particulate matter in the flue gas, filter remaining dust when the later stage is cleaned, can pass through opening 120, be collected by collection dish 130, during the flue gas after the filtration can get into denitrification facility 200, purify it by denitrification facility 200. In this way, the large particulate matter in the flue gas can be better collected by the collection vessel 130, and the filter device 100 is prevented from being blocked and the service life of the filter device 100 is prevented from being affected.
In this application embodiment, flue gas denitration equipment can include: as shown in fig. 1 or fig. 2, an output end and an input end of the water pump 600 are both communicated with the denitration device 200, the output end is located above the negative pressure device 300, and the input end is located below the purification device 400. In specific working process, negative pressure device 300 can extract the flue gas upward movement after filtering, at the in-process that rises, the flue gas can react with filler 410, get rid of NOx in the flue gas, in addition, can produce liquid after the reaction, under the effect of water pump 600, the liquid of production passes through input entering water pump 600, and export to denitrification facility 200 from the output, and liquid can collide with fan 340, form a fog and spray, spray the flue gas, and then can further improve the purifying effect of flue gas.
In further technical scheme, in order to further improve flue gas denitration equipment's purification efficiency, water pump 600's output can be equipped with a plurality of liquid outlets, and the flue gas can spray to the flue gas that needs the denitration more fully with the produced liquid of filler 410 emergence redox reaction, improves subsequent purifying effect.
In addition, the flue gas denitration equipment that this application embodiment disclosed can also include: the inlet pipe 700, as shown in fig. 3, the inlet pipe 700 may be communicated with the first space, and the flue gas enters the filtering apparatus 100 through the inlet pipe 700. Through advancing pipe 700, the flue gas that produces after the boiler burning can get into filter equipment 100 to accomplish subsequent dust removal and the operation of denitration to the flue gas, realize the purification to the flue gas, through this kind of mode, can avoid the flue gas that the boiler produced to leak, cause the pollution to the environment.
In order to ensure that the flue gas filtered by the filtering device 100 can be smoothly output to the denitration device 200, in an alternative scheme, the output end of the air pump 500 may be higher than the connecting end of the air pump 500 and the denitration device 200. Through this kind of mode, the flue gas can be exported to denitrification facility 200 relatively fast under the effect of pressure, carries out denitration treatment by denitrification facility 200, realizes purifying the purpose to the flue gas.
In the embodiments of the present application, the difference between the embodiments is described in detail, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.
Claims (10)
1. The utility model provides a flue gas denitration equipment which characterized in that includes: a filtering device (100), a denitration device (200), a negative pressure device (300), a purification device (400) and an air pump (500),
the filtering apparatus (100) includes a filtering net (110), the filtering net (110) divides an inner space of the filtering apparatus (100) into a first space and a second space;
the negative pressure device (300) and the purification device (400) are arranged in the inner space of the denitration device (200), and the negative pressure device (300) is positioned above the purification device (400);
the air pump (500) is arranged at the top of the filtering device (100), the input end of the air pump (500) is communicated with the second space, and the output end of the air pump (500) is communicated with the denitration device (200).
2. The flue gas denitration apparatus of claim 1, wherein the negative pressure device (300) comprises: the denitration device comprises a lantern ring (310), a support (320), a driving mechanism (330) and a fan (340), wherein the lantern ring (310) is fixed on the inner wall of the denitration device (200), the support (320) is arranged on the lantern ring (310), the driving mechanism (330) is connected with the support (320), the fan (340) is connected with the driving mechanism (330), and the driving mechanism (330) drives the fan (340) to rotate.
3. The flue gas denitration apparatus of claim 2, wherein a protective casing is provided outside the driving mechanism (330).
4. The flue gas denitration apparatus according to claim 1, wherein said purification device (400) comprises: the denitration device comprises a filler (410) and a sleeve (420), wherein the sleeve (420) is fixed on the inner wall of the denitration device (200) and is positioned below the negative pressure device (300), and the filler (410) is filled in the sleeve (420).
5. The flue gas denitration apparatus according to claim 4, wherein the filler (410) is a reducing agent.
6. The flue gas denitration apparatus according to claim 1, wherein said filtering means (100) further comprises: the opening (120) is arranged at the bottom of the filtering device (100) and is communicated with the first space, and the collecting dish (130) covers the opening (120).
7. The flue gas denitration apparatus according to claim 1, comprising: the output end and the input end of the water pump (600) are communicated with the denitration device (200), the output end is located above the negative pressure device (300), and the input end is located below the purification device (400).
8. The flue gas denitration apparatus of claim 7, wherein the output end of the water pump (600) is provided with a plurality of liquid outlets.
9. The flue gas denitration apparatus of claim 1, further comprising: an inlet pipe (700), the inlet pipe (700) is communicated with the first space, and the flue gas enters the filtering device (100) through the inlet pipe (700).
10. The flue gas denitration apparatus of claim 1, wherein an output end of the air pump (500) is higher than a connection end of the air pump (500) and the denitration device (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121026235.XU CN217367574U (en) | 2021-05-13 | 2021-05-13 | Flue gas denitration equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121026235.XU CN217367574U (en) | 2021-05-13 | 2021-05-13 | Flue gas denitration equipment |
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| CN217367574U true CN217367574U (en) | 2022-09-06 |
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| CN202121026235.XU Active CN217367574U (en) | 2021-05-13 | 2021-05-13 | Flue gas denitration equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113209739A (en) * | 2021-05-13 | 2021-08-06 | 福建晋江热电有限公司 | Flue gas denitration equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113209739A (en) * | 2021-05-13 | 2021-08-06 | 福建晋江热电有限公司 | Flue gas denitration equipment |
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