CN211854042U - Waste gas burning device capable of treating flue gas - Google Patents
Waste gas burning device capable of treating flue gas Download PDFInfo
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- CN211854042U CN211854042U CN201922249799.9U CN201922249799U CN211854042U CN 211854042 U CN211854042 U CN 211854042U CN 201922249799 U CN201922249799 U CN 201922249799U CN 211854042 U CN211854042 U CN 211854042U
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Abstract
The utility model provides a waste gas burning device capable of processing flue gas, when combustible gas in industrial waste gas is subjected to diffusion combustion, nitrogen oxides in the flue gas are changed into nitrogen and water to be directly discharged without any secondary pollution, a combined pipeline is arranged in a shell, a waste gas spray pipe is arranged at the front end of the combined pipeline, the outlet of the waste gas spray pipe is positioned outside a secondary combustion-supporting air pipe in the furnace, a secondary combustion-supporting air pipe in the furnace is arranged at the front side of the combined pipeline, the secondary combustion-supporting air pipe in the furnace divides combustion-supporting air entering the shell into primary combustion-supporting air positioned outside the secondary combustion-supporting air pipe in the furnace and secondary combustion-supporting air positioned inside the secondary combustion-supporting air pipe in the furnace, an ignition device is arranged in the shell, a flue gas processing device is also arranged in the shell, the device comprises a material spray pipe for introducing flue gas processing material, a material nozzle is arranged at the material outlet of the smoke treatment.
Description
Technical Field
The utility model relates to a waste gas treatment technical field, concretely relates to can handle burning waste gas device of flue gas.
Background
At present, a large amount of industrial waste gas is discharged in the production process of domestic petroleum coal chemical enterprises, such as coke oven crude gas or simply treated or processed coke oven gas, blast furnace gas, coal bed gas, generator gas, city gas, biogas, calcium carbide furnace tail gas and carbon black tail gas, the industrial waste gas contains a large amount of combustible gas and is directly discharged into the atmosphere, so that huge waste and serious environmental pollution are caused, when the industrial waste gas is combusted, because the components are complex, the combustible components of the same type of waste gas are different from each other, the contained impurities are completely different, in the incombustible components, a plurality of waste gases contain components which are forbidden to be discharged in environmental protection or have limited discharge amount, particularly, a large amount of nitrogen and nitrogen oxide components exist in all waste gases, the nitrogen and the like are oxidized at high temperature in the normal combustion process, and the flue gas contains a large amount of nitrogen oxide, so that the industrial waste gas is directly discharged to cause serious pollution to, used by environmental protection restriction, if with nitrogen separation in the gas or carry out denitration treatment with the nitrogen oxide in the flue gas, need very big economic input and daily treatment expense, bring very big economic burden for the enterprise, still can bring secondary pollution, diffusion formula low temperature combustion technique in the stove has been adopted to the nitrogen oxide that the combustion process produced, its nitrogen oxide content obviously reduces, still be higher than discharge requirements up to standard far away in the total content of original nitrogen oxide in the waste gas in addition, show that only depends on combustion process's control difficult will discharge and reach the environmental protection requirement.
At present, nitrogen oxides of burners burning such waste gas on the market far exceed the emission standard, many users are called to stop by environmental protection departments or are modified in a limited period, if no new scientific combustion device or reasonable and more economical treatment method is available to achieve standard emission, industrial waste gas containing combustible gas is directly emitted or burnt, so that the environment is polluted, a large amount of available heat is wasted, and in order to achieve the standard use, many factories have to carry out flue gas denitration treatment to generate secondary pollution.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a can handle burning waste gas device of flue gas, it can be when carrying out the diffusion burning with combustible gas in the industrial waste gas, becomes nitrogen oxide and water direct emission in the flue gas, does not have any secondary pollution, realizes standardizing standard utilization to various industrial waste gas effectively.
The technical scheme is as follows: the utility model provides a can handle burning exhaust apparatus of flue gas, is including casing and the flame pipe that is connected, be provided with waste gas admission line, combustion-supporting wind admission line on the casing respectively, its characterized in that: the combined pipeline is communicated with the combustion-supporting air inlet pipeline, a plurality of waste gas spray pipes communicated with the combined pipeline are arranged at the front end of the combined pipeline, a furnace secondary combustion-supporting air pipe is arranged at the front side of the combined pipeline, the outlet of each waste gas spray pipe is positioned on the outer side of the furnace secondary combustion-supporting air pipe and extends to the front end of the flame pipe, a combustion-supporting air inlet and a combustion-supporting air outlet are respectively arranged at two ends of the furnace secondary combustion-supporting air pipe, the combustion-supporting air outlet of the furnace secondary combustion-supporting air pipe extends forwards to cross the outlet of the waste gas spray pipe, the furnace secondary combustion-supporting air pipe divides the combustion-supporting air entering the shell into primary combustion-supporting air positioned on the outer side of the furnace secondary combustion-supporting air pipe and secondary combustion-supporting air positioned on the inner side of the furnace secondary combustion-supporting air pipe, the smoke treatment device comprises a material spray pipe, one end of the material spray pipe is arranged to be a smoke treatment material inlet for introducing smoke treatment materials, the other end of the material spray pipe is arranged to be a smoke treatment material outlet, the smoke treatment material outlet extends forwards to cross a combustion-supporting air outlet of a secondary combustion-supporting air pipe in the furnace, and a material nozzle is arranged at the smoke treatment material outlet.
Furthermore, the combined pipeline comprises an inner pipe and a jacket positioned on the outer side of the inner pipe, the jacket is respectively connected with the waste gas inlet pipeline and the waste gas spray pipe to form a waste gas channel, one end of the inner pipe is arranged as a combustion-supporting air inlet, and the other end of the inner pipe is connected with a secondary combustion-supporting air pipe in the furnace to form an air channel.
Furthermore, the waste gas spray pipe is annularly distributed on the outer side of the secondary combustion-supporting air pipe in the furnace.
Furthermore, an outer dispersing type waste gas nozzle is arranged at the outlet of the waste gas spray pipe, and a dispersing prevention cover is arranged on the outer dispersing type waste gas nozzle and can enable waste gas to be dispersed outwards and sprayed out.
Further, when the flue gas treatment material is gas, the material nozzle is a gas nozzle; when the smoke treatment material is liquid, the material nozzle adopts an atomizing nozzle.
Further, the material spray pipe is arranged in the supporting protective sleeve, the supporting protective sleeve is close to one end of the smoke treatment material outlet and is provided with a high-temperature-resistant supporting protective sleeve, and the material spray pipe is close to one end of the smoke treatment material outlet and is provided with a high-temperature-resistant material spray pipe.
Furthermore, a combustion-supporting air outlet of the secondary combustion-supporting air pipe in the furnace is provided with a diffusion type cyclone plate for changing the secondary combustion-supporting air into dispersed rotary backflow divergent air.
Furthermore, the ignition device comprises an ignition tube arranged in the shell, one end of the ignition tube is communicated with an ignition gas inlet, the other end of the ignition tube extends into the flame tube and is provided with an ignition and ever-burning flame nozzle, an automatic ignition element is arranged at the position of the ignition and ever-burning flame nozzle, and the ignition and ever-burning flame nozzle is close to an outlet of the waste gas spray pipe.
Furthermore, an electric waste gas regulating valve is arranged on the waste gas inlet pipeline, an electric regulating air door is arranged on the combustion air inlet pipeline, and a material electric regulating valve is arranged on the flue gas treatment material inlet.
Furthermore, an inspection door is arranged on the shell, and the shell and the flame tube are connected into a whole through a connecting flange.
The utility model discloses a can handle burning waste gas device of flue gas, can carry out the diffusion burning with combustible gas in the flue gas of industrial waste gas such, nitrogen oxide in the minimize flue gas, meanwhile, set up flue gas processing apparatus on the burning waste gas device, flue gas processing apparatus's material spray tube can be with flue gas treatment material ammonia or aqueous ammonia or urea and catalyst solution by heating the back produce the flue gas initial position that the aqueous ammonia directly sprays to burning flame afterbody and abundant and flue gas mix, make nitrogen oxide and ammonia in the flue gas take place chemical reaction, become nitrogen oxide and water direct emission, no any secondary pollution, it can change according to the change of burning load to handle the material and spout the volume, handle running cost greatly reduced, realize carrying out standard up-to-standard utilization to various industrial waste gas effectively.
Drawings
FIG. 1 is a schematic front view of a waste gas combustion device capable of treating flue gas according to the present invention;
fig. 2 is a schematic side view of the waste gas combustion device capable of processing flue gas.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1 and 2, the waste gas combustion device capable of treating flue gas of the utility model comprises a shell 1 and a flame tube 2 which are connected, a waste gas inlet pipeline 3 and a combustion-supporting air inlet pipeline 4 are respectively arranged on the shell 1, a combined pipeline 5 communicated with the combustion-supporting air inlet pipeline 4 is arranged in the shell 1, a plurality of waste gas spray pipes 6 communicated with the combined pipeline are arranged at the front end of the combined pipeline 6, a secondary combustion-supporting air pipe 7 in the furnace is arranged at the front side of the combined pipeline 6,
in this embodiment, the combined pipeline includes an inner pipe 501 and a jacket 502 located outside the inner pipe 501, the jacket 502 is connected to the exhaust gas inlet pipeline 3 and the exhaust gas nozzle 6 to form an exhaust gas channel, one end of the inner pipe 501 is set as a combustion-supporting air inlet, the other end of the inner pipe 501 is connected to the secondary combustion-supporting air pipe 7 in the furnace to form an air channel, the exhaust gas nozzle 6 is annularly distributed outside the secondary combustion-supporting air pipe 7 in the furnace, the exhaust gas nozzle 6 uniformly sprays exhaust gas around the secondary combustion-supporting air pipe 7 to diffuse the exhaust gas, so that the combustion area is large and the flame temperature is reduced at the same load, an outlet 601 of the exhaust gas nozzle is located outside the secondary combustion-supporting air pipe 6 in the furnace and extends to the front end of the flame pipe 2, a combustion-supporting air inlet 701 and a combustion-supporting air outlet 702 are respectively arranged at two ends of the secondary combustion-supporting air pipe 7 in, the combustion-supporting air outlet 701 of the secondary combustion-supporting air pipe in the furnace extends forwards to cross the outlet 601 of the waste gas spray pipe, the combustion-supporting air pipe 7 in the furnace divides the combustion-supporting air entering the shell into primary combustion-supporting air positioned outside the secondary combustion-supporting air pipe in the furnace and secondary combustion-supporting air positioned inside the secondary combustion-supporting air pipe in the furnace, a diffusion type cyclone plate 8 is arranged at the combustion-supporting air outlet 702 of the secondary combustion-supporting air pipe in the furnace and used for changing the secondary combustion-supporting air into dispersed rotary backflow divergent air, so that large flames in the furnace are hollow, the dispersed flames with increased flame area can be prevented from being burnt out due to overheating of the spray pipe, an ignition device is arranged in the shell, a smoke treatment device is also arranged in the shell and comprises a material spray pipe 9, one end of the material spray pipe is provided with a smoke treatment material inlet, the flue gas treatment material outlet 902 extends forward to cross the air combustion outlet 702 of the secondary combustion-supporting air pipe in the furnace, and a material nozzle 10 is arranged at the flue gas treatment material outlet.
Specifically, when the flue gas treatment material is gas, such as ammonia gas, the material nozzle 10 is a gas nozzle; when the flue gas treatment material is a liquid such as urea solution or ammonia water, the material nozzle 10 adopts an atomizing nozzle for decomposing nitrogen oxides and reducing the nitrogen oxides into nitrogen and water.
In this embodiment, the outlet 601 of the exhaust nozzle is provided with an outer dispersing exhaust nozzle 11, the outer dispersing exhaust nozzle 11 is provided with a dispersion-preventing cover 12, so that the exhaust can be dispersed and sprayed outwards, the dispersion-preventing cover 12 is used for dispersing the exhaust outwards to form a hollow area of the total flame assembly, and the flame area is large and the temperature is low after the mixture of the flame area and the primary combustion-supporting air is mixed.
In addition in this embodiment, material spray tube 9 is arranged in supporting sheath pipe 13, the one end that supporting sheath 13 pipe is close to the export of flue gas treatment material is provided with high temperature resistant supporting sheath pipe 1301, the one end that material spray tube 9 is close to the export of flue gas treatment material is provided with high temperature resistant material spray tube 903, material spray tube 9 is handled the material with the flue gas and is carried in the furnace, spray the material through the material nozzle and mix in the terminal flue gas of flame, material spray tube 9 divide into two parts, the maintenance change can be convenient for in the setting of high temperature resistant material spray tube 903.
In addition, the ignition device comprises an ignition pipe 1401 arranged in the shell, one end of the ignition pipe 1401 is communicated with an ignition gas inlet 1402, the other end of the ignition pipe 1401 extends into the flame pipe 2 and is provided with an ignition and long-open flame nozzle, an automatic ignition element 1403 is arranged at the position of the ignition and long-open flame nozzle, the ignition and long-open flame nozzle is arranged close to an outlet 601 of the exhaust gas spray pipe, and the ignition gas is ignited through the automatic ignition element 1403 after flowing into the ignition pipe 1401.
In addition, the exhaust gas inlet pipeline 3 is provided with an exhaust gas electric regulating valve 15 which can be used for regulating the air inflow of exhaust gas, the combustion-supporting air inlet pipeline is provided with an electric regulating air door 16 which can be used for regulating the air inflow of air, the flue gas treatment material inlet is provided with a material electric regulating valve 17 which can be used for regulating the inlet amount of flue gas treatment materials, and the exhaust gas electric regulating valve 15, the electric regulating air door 16 and the material electric regulating valve 17 are respectively connected with an electric actuator or a servo motor.
In the present embodiment, the housing 1 is provided with an inspection door 18, and the housing 1 and the flame tube 2 are integrally connected by a connecting flange 19.
After the waste gas is introduced from the waste gas inlet pipeline, the waste gas is firstly diffused through the waste gas spray pipe after passing through the combined pipeline, the waste gas is uniformly sprayed to the periphery of a secondary combustion-supporting air pipe in the furnace to be mixed with primary combustion-supporting air, and is ignited through the ignition device to be combusted to output a plurality of beams of flames, the arrangement ensures that the combustion area greatly reduces the flame temperature under the same load, then the flames are in contact combustion with the secondary combustion-supporting air, the secondary combustion-supporting air is changed into dispersed rotary backflow divergent air by the diffusion type cyclone plate, so that the large flames in the furnace are hollow, the dispersed flames with the increased flame area can be prevented from being overheated and being burnt out by the burnt-out spray gun, the central temperature of the combustion flames is reduced, the generation of nitrogen oxides is prevented, the low-nitrogen combustion and the low-nitrogen environmental protection emission are realized, in addition, the material, the flue gas treatment materials such as ammonia gas or ammonia water or urea and a catalyst solution are heated to generate ammonia water which is directly sprayed to the starting position of the flue gas at the tail part of the combustion flame and fully mixed with the flue gas, so that the nitrogen oxide in the flue gas and the ammonia gas are subjected to chemical reaction, the nitrogen oxide is changed into nitrogen and water to be directly discharged, no secondary pollution is caused, and the standard utilization of various industrial waste gases is effectively realized.
The utility model discloses a can handle burning waste gas device of flue gas, can carry out the diffusion burning with combustible gas in the flue gas of industrial waste gas such, nitrogen oxide in the minimize flue gas, meanwhile, set up flue gas processing apparatus on the burning waste gas device, flue gas processing apparatus's material spray tube can be with flue gas treatment material ammonia or aqueous ammonia or urea and catalyst solution by heating the back produce the flue gas initial position that the aqueous ammonia directly sprays to burning flame afterbody and abundant and flue gas mix, make nitrogen oxide and ammonia in the flue gas take place chemical reaction, become nitrogen oxide and water direct emission, no any secondary pollution, it can change according to the change of burning load to handle the material and spout the volume, handle running cost greatly reduced, realize carrying out standard up-to-standard utilization to various industrial waste gas effectively.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a can handle burning exhaust apparatus of flue gas, is including casing and the flame pipe that is connected, be provided with waste gas admission line, combustion-supporting wind admission line on the casing respectively, its characterized in that: the combined pipeline is communicated with the combustion-supporting air inlet pipeline, a plurality of waste gas spray pipes communicated with the combined pipeline are arranged at the front end of the combined pipeline, a furnace secondary combustion-supporting air pipe is arranged at the front side of the combined pipeline, the outlet of each waste gas spray pipe is positioned on the outer side of the furnace secondary combustion-supporting air pipe and extends to the front end of the flame pipe, a combustion-supporting air inlet and a combustion-supporting air outlet are respectively arranged at two ends of the furnace secondary combustion-supporting air pipe, the combustion-supporting air outlet of the furnace secondary combustion-supporting air pipe extends forwards to cross the outlet of the waste gas spray pipe, the furnace secondary combustion-supporting air pipe divides the combustion-supporting air entering the shell into primary combustion-supporting air positioned on the outer side of the furnace secondary combustion-supporting air pipe and secondary combustion-supporting air positioned on the inner side of the furnace secondary combustion-supporting air pipe, the smoke treatment device comprises a material spray pipe, one end of the material spray pipe is arranged to be a smoke treatment material inlet for introducing smoke treatment materials, the other end of the material spray pipe is arranged to be a smoke treatment material outlet, the smoke treatment material outlet extends forwards to cross a combustion-supporting air outlet of a secondary combustion-supporting air pipe in the furnace, and a material nozzle is arranged at the smoke treatment material outlet.
2. The flue gas fired device capable of treating flue gas according to claim 1, wherein: the combined pipeline comprises an inner pipe and a jacket positioned on the outer side of the inner pipe, the jacket is respectively connected with the waste gas inlet pipeline and the waste gas spray pipe to form a waste gas channel, one end of the inner pipe is arranged as a combustion-supporting air inlet, and the other end of the inner pipe is connected with a secondary combustion-supporting air pipe in the furnace to form an air channel.
3. The flue gas fired device capable of treating flue gas according to claim 1, wherein: and the waste gas spray pipe is annularly distributed on the outer side of the secondary combustion-supporting air pipe in the furnace.
4. The flue gas fired device capable of treating flue gas according to claim 1, wherein: an outer dispersing type waste gas nozzle is arranged at the outlet of the waste gas spray pipe, and a dispersing prevention cover is arranged on the outer dispersing type waste gas nozzle and can enable waste gas to be dispersed outwards and sprayed out.
5. The flue gas fired device capable of treating flue gas according to claim 1, wherein: when the smoke treatment material is gas, the material nozzle is a gas nozzle; when the smoke treatment material is liquid, the material nozzle adopts an atomizing nozzle.
6. The flue gas fired device capable of treating flue gas according to claim 1, wherein: the material spray pipe is arranged in the supporting protective sleeve, the supporting protective sleeve is close to one end of the smoke treatment material outlet is provided with a high-temperature-resistant supporting protective sleeve, and the material spray pipe is close to one end of the smoke treatment material outlet is provided with a high-temperature-resistant material spray pipe.
7. The flue gas fired device capable of treating flue gas according to claim 1, wherein: and a combustion-supporting air outlet of the secondary combustion-supporting air pipe in the furnace is provided with a diffusion type cyclone plate for converting the secondary combustion-supporting air into dispersed rotary backflow divergent air.
8. The flue gas fired device capable of treating flue gas according to claim 1, wherein: the ignition device comprises an ignition pipe arranged in the shell, one end of the ignition pipe is communicated with an ignition gas inlet, the other end of the ignition pipe extends into the flame pipe and is provided with an ignition and ever-burning flame nozzle, an automatic ignition element is arranged at the position of the ignition and ever-burning flame nozzle, and the ignition and ever-burning flame nozzle is close to an outlet of the waste gas spray pipe.
9. The flue gas fired device capable of treating flue gas according to claim 1, wherein: the waste gas inlet pipeline is provided with a waste gas electric regulating valve, the combustion-supporting air inlet pipeline is provided with an electric regulating air door, and the flue gas treatment material inlet is provided with a material electric regulating valve.
10. The flue gas fired device capable of treating flue gas according to claim 1, wherein: the shell is provided with an inspection door, and the shell and the flame tube are connected into a whole through a connecting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922249799.9U CN211854042U (en) | 2019-12-16 | 2019-12-16 | Waste gas burning device capable of treating flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922249799.9U CN211854042U (en) | 2019-12-16 | 2019-12-16 | Waste gas burning device capable of treating flue gas |
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| Publication Number | Publication Date |
|---|---|
| CN211854042U true CN211854042U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922249799.9U Active CN211854042U (en) | 2019-12-16 | 2019-12-16 | Waste gas burning device capable of treating flue gas |
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| CN (1) | CN211854042U (en) |
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2019
- 2019-12-16 CN CN201922249799.9U patent/CN211854042U/en active Active
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