CN215842432U - Dust removal SOx/NOx control device for boiler flue gas - Google Patents
Dust removal SOx/NOx control device for boiler flue gas Download PDFInfo
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- CN215842432U CN215842432U CN202120548384.6U CN202120548384U CN215842432U CN 215842432 U CN215842432 U CN 215842432U CN 202120548384 U CN202120548384 U CN 202120548384U CN 215842432 U CN215842432 U CN 215842432U
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Abstract
The utility model relates to the field of gas purification, in particular to a dust removal, desulfurization and denitrification device for boiler flue gas, which comprises a purification tower, wherein two layers of flue gas desulfurization and denitrification units are arranged in the purification tower; the bottom of the purification tower is provided with an air inlet pipe, the exhaust end of the air inlet pipe is positioned at the bottom of the purification tower, the upper end of the purification tower is provided with an air outlet pipe, and the air outlet pipe is communicated with the upper end of the purification tower; the flue gas desulfurization and denitrification unit comprises a disc, a purification cylinder, an atomization nozzle, an inlet pipe and a discharge pipe; the edge of the disc is fixedly connected to the inner side wall of the purification tower, an exhaust port is formed in the middle of the disc, a purification cylinder is fixedly connected to the upper end of a hole of the exhaust port, a plurality of atomizing nozzles are arranged on the inner wall of the purification cylinder, the interior of the purification cylinder is hollow, and the interior of the purification cylinder is communicated with an inlet pipe; one end of a calandria is fixedly connected to the fixed connection part of the disc and the purification tower, and the other end of the calandria extends out of the purification tower; and the purification cylinder is uniformly provided with a plurality of drainage grooves.
Description
Technical Field
The utility model relates to the field of gas purification, in particular to a dust removal, desulfurization and denitrification device for boiler flue gas.
Background
Along with the continuous development of industrial economy, the emission of flue gas is more and more, and the pollution to the air environment is more and more, so that the reduction of the emission of harmful substances in the flue gas is particularly important, and the requirements of people on flue gas desulfurization and denitrification devices are higher and higher.
The current mode to flue gas desulfurization denitration gets rid of the sulfur dioxide or the NOX of flue gas alone, earlier in desulphurization unit is gone into to the flue gas, gets rid of the sulfur dioxide of flue gas promptly, then will get rid of during the flue gas of sulfur dioxide is blown into denitrification facility, gets rid of the NOX of flue gas again, and this mode is inefficient, can not adapt to the industry of current rapid development.
Therefore, a dust removal, desulfurization and denitrification device for boiler flue gas is provided aiming at the problems.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problem that the existing flue gas desulfurization and denitration mode is low in efficiency of independently removing sulfur dioxide or NOX of flue gas, the utility model provides a dust removal desulfurization and denitration device for boiler flue gas.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model relates to a dust removal, desulfurization and denitrification device for boiler flue gas, which comprises a purification tower, wherein two layers of flue gas desulfurization and denitrification units are arranged in the purification tower; the bottom of the purification tower is provided with an air inlet pipe, the exhaust end of the air inlet pipe is positioned at the bottom of the purification tower, the upper end of the purification tower is provided with an air outlet pipe, and the air outlet pipe is communicated with the upper end of the purification tower; the flue gas desulfurization and denitrification unit comprises a disc, a purification cylinder, an atomization nozzle, an inlet pipe and a discharge pipe; the edge of the disc is fixedly connected to the inner side wall of the purification tower, an exhaust port is formed in the middle of the disc, a purification cylinder is fixedly connected to the upper end of a hole of the exhaust port, a plurality of atomizing nozzles are arranged on the inner wall of the purification cylinder, the interior of the purification cylinder is hollow, and the interior of the purification cylinder is communicated with an inlet pipe; one end of a calandria is fixedly connected to the fixed connection part of the disc and the purification tower, and the other end of the calandria extends out of the purification tower; and the purification cylinder is uniformly provided with a plurality of drainage grooves.
Preferably, a guide plate is arranged at the notch of the drainage groove; one edge rigid coupling of guide plate is at the inner wall of purifying cylinder, and another edge of guide plate flushes with the notch bottom surface of water drainage tank, and another edge slope of guide plate points to the upper end of purifying cylinder.
Preferably, each below of gas vent is equipped with accepts the basin, and the edge of accepting the basin is equipped with the bracing piece, accepts the basin and passes through the bracing piece rigid coupling on the inner wall of purifying tower, is equipped with the drain pipe on accepting the basin, and the one end intercommunication of drain pipe accepts inside the basin, and the other end of drain pipe stretches out the purifying tower outside.
Preferably, the exhaust end of said intake pipe is disposed inside the purification tower in a "#" shape.
Preferably, a dust removal box is arranged inside the purification tower; the dust removal box is fixedly connected to the inner bottom surface of the purification tower, a plurality of strip-shaped through holes are formed in the side wall of the dust removal box, and a layer of dust removal filter screen is attached to the inner wall of the dust removal box; and the exhaust end of the air inlet pipe penetrates through the interior of the dust removal box.
Preferably, the upper end of the receiving water tank is flush with the lower edge of the disc.
The utility model has the advantages that:
the flue gas desulfurization and denitration unit can remove sulfur dioxide and NOX in the flue gas, and the dust removal desulfurization and denitration device can realize integrated purification of the flue gas, namely, the flue gas passes through the purification tower, so that dust, sulfur dioxide and NOX in the flue gas can be removed, and the dust removal desulfurization and denitration efficiency of the flue gas is improved;
meanwhile, the slurry or the ammonia water impacts the inner wall of the purification cylinder, and under the flow guide of the guide plate, the slurry or the ammonia water flowing on the inner wall of the purification cylinder is prevented from dropping to the inner bottom of the purification tower from the exhaust port to pollute the purification tower;
the other end of the drain pipe extends out of the purification tower; when the slurry or the ammonia water is sprayed out from the atomizing nozzle, part of the slurry and the ammonia water are gathered and dripped at the middle position of the purifying cylinder, so that the slurry or the ammonia water dripped from the exhaust port is dripped into the receiving water tank by arranging the receiving water tank below the exhaust port, and then is discharged out of the purifying tower from the drain pipe.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art 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 for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
in the figure: 1. a purification tower; 2. an air inlet pipe; 3. an air outlet pipe; 4. a disc; 5. a purification cartridge; 6. an atomizing nozzle; 7. feeding a pipe; 8. arranging pipes; 9. an exhaust port; 10. a water discharge tank; 11. a baffle; 12. a receiving water tank; 13. a support bar; 14. a drain pipe; 15. a dust removal box; 16 through holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a dust removal, desulfurization and denitrification device for boiler flue gas comprises a purification tower 1, wherein two layers of flue gas desulfurization and denitrification units are arranged in the purification tower 1; the bottom of the purification tower 1 is provided with an air inlet pipe 2, the exhaust end of the air inlet pipe 2 is positioned at the bottom of the purification tower 1, the upper end of the purification tower 1 is provided with an air outlet pipe 3, and the air outlet pipe 3 is communicated with the upper end of the purification tower 1; the flue gas desulfurization and denitration unit comprises a disc 4, a purification cylinder 5, an atomizing nozzle 6, an inlet pipe 7 and a discharge pipe 8; the edge of the disc 4 is fixedly connected to the inner side wall of the purification tower 1, the middle of the disc 4 is provided with an exhaust port 9, the upper end of a hole of the exhaust port 9 is fixedly connected with a purification cylinder 5, the inner wall of the purification cylinder 5 is provided with a plurality of atomizing nozzles 6, the interior of the purification cylinder 5 is hollow, and the interior of the purification cylinder 5 is communicated with an inlet pipe 7; the fixed connection part of the disc 4 and the purification tower 1 is fixedly connected with one end of a calandria 8, and the other end of the calandria 8 extends out of the purification tower 1; a plurality of drainage grooves 10 are uniformly formed in the purification cylinder 5; firstly, pouring clear water into a purifying cylinder 5, then preparing limestone or sodium hydroxide alkaline desulfurizer into slurry, pumping the slurry into the purifying cylinder 5 communicated with the inlet pipe 7 from an inlet pipe 7 below a purifying tower 1 by a high-pressure pump, spraying the slurry out of an atomizing nozzle 6 under the action of pressure, spraying the slurry in an atomized state, pumping ammonia water into the purifying cylinder 5 communicated with the inlet pipe 7 from an inlet pipe 7 above the purifying tower 1 by the high-pressure pump, spraying the ammonia water out of the atomizing nozzle 6 under the action of pressure, pumping boiler flue gas into the purifying tower 1 from an air inlet pipe 2, discharging the flue gas from water, performing dust removal treatment, enabling the flue gas to float upwards along the purifying tower 1, enabling the flue gas to pass through the purifying cylinder 5 sprayed by the slurry, enabling sulfur dioxide in the flue gas to chemically react with the alkaline desulfurizer to remove sulfur dioxide, enabling the flue gas to continuously rise, and enabling the flue gas to pass through the purifying cylinder 5 sprayed by the ammonia water, NOX in the flue gas reacts with ammonia water to produce N2, NOX in the flue gas is removed, sulfur dioxide and NOX in the flue gas are removed at the moment, and finally the flue gas rises to the top of the purification tower 1 and is discharged through an air outlet pipe 3, so that desulfurization and denitrification of the flue gas are realized; in the dedusting, desulfurization and denitrification processes, slurry impacts on the inner wall of the purification cylinder 5, then the slurry flows along with the inner wall of the purification cylinder 5 and is discharged from the drainage groove 10 to flow to the fixed joint of the disc 4 and the purification cylinder 5, finally the slurry is discharged from the discharge pipe 8 on one side of the disc 4, and similarly, ammonia water is discharged from the discharge pipe 8; this dust removal SOx/NOx control device can realize the integration purification to the flue gas, and the flue gas passes through this purifying column 1 promptly, alright detach dust, sulfur dioxide and NOX in the flue gas, improves the dust removal SOx/NOx control efficiency of flue gas.
As an embodiment of the utility model, a flow guide plate 11 is arranged at the notch of the drainage groove 10; one edge of the guide plate 11 is fixedly connected to the inner wall of the purification cylinder 5, the other edge of the guide plate 11 is flush with the bottom surface of the notch of the drainage groove 10, and the other edge of the guide plate 11 is obliquely directed to the upper end of the purification cylinder 5; the slurry or ammonia water impacts on the inner wall of the purifying cylinder 5, and under the guide of the guide plate 11, the slurry or ammonia water flowing on the inner wall of the purifying cylinder 5 is prevented from dropping to the inner bottom of the purifying tower 1 from the exhaust port 9 to pollute the purifying tower 1.
As an embodiment of the utility model, a receiving water tank 12 is arranged below each exhaust port 9, a support rod 13 is arranged at the edge of the receiving water tank 12, the receiving water tank 12 is fixedly connected to the inner wall of the purification tower 1 through the support rod 13, a drain pipe 14 is arranged on the receiving water tank 12, one end of the drain pipe 14 is communicated with the inside of the receiving water tank 12, and the other end of the drain pipe 14 extends out of the purification tower 1; when the slurry or the ammonia water is discharged from the atomizing nozzle 6, a part of the slurry or the ammonia water is collected and dropped at the intermediate position of the purification cartridge 5, and for this purpose, a receiving tank 12 is provided below the exhaust port 9, and the slurry or the ammonia water dropped from the exhaust port 9 is dropped into the receiving tank 12 and then discharged from the purification tower 1 through a drain pipe 14.
As an embodiment of the present invention, the exhaust end of the intake pipe 2 is disposed inside the purification tower 1 in a shape of "#"; the exhaust end of the air inlet pipe 2 is arranged in a reverse U shape, so that the water in the purification tower 1 is prevented from flowing back to the air inlet pipe 2.
As an embodiment of the present invention, a dust removing box 15 is provided inside the purification tower 1; the dust removal box 15 is fixedly connected to the inner bottom surface of the purification tower 1, a plurality of strip-shaped through holes 16 are formed in the side wall of the dust removal box 15, and a dust removal filter screen is attached to the inner wall of the dust removal box 15; the exhaust end of the air inlet pipe 2 penetrates through the interior of the dust removal box 15; in dust removal case 15 was gone into in the flue gas drum, the flue gas was filtered through the dust removal filter screen, and the particulate matter in the flue gas is filtered, and when the flue gas was discharged into dust removal case 15 from intake pipe 2, the bubble was flooded to the aquatic, and this bubble stirs the water in the dust removal case 15, can avoid the particulate matter to block up the dust removal filter screen.
As an embodiment of the utility model, the upper end of the receiving water tank 12 is flush with the lower edge of the disc 4; the upper end of the receiving water tank 12 is flush with the lower edge of the disc 4, so that a gap is reserved between the receiving water tank 12 and the disc 4, and the fluidity of the flue gas is ensured.
The working principle is as follows: firstly, pouring clear water into a purifying cylinder 5, then preparing limestone or sodium hydroxide alkaline desulfurizer into slurry, pumping the slurry into the purifying cylinder 5 communicated with the inlet pipe 7 from an inlet pipe 7 below a purifying tower 1 by a high-pressure pump, spraying the slurry out of an atomizing nozzle 6 under the action of pressure, spraying the slurry in an atomized state, pumping ammonia water into the purifying cylinder 5 communicated with the inlet pipe 7 from an inlet pipe 7 above the purifying tower 1 by the high-pressure pump, spraying the ammonia water out of the atomizing nozzle 6 under the action of pressure, pumping boiler flue gas into the purifying tower 1 from an air inlet pipe 2, discharging the flue gas from water, performing dust removal treatment, enabling the flue gas to float upwards along the purifying tower 1, enabling the flue gas to pass through the purifying cylinder 5 sprayed by the slurry, enabling sulfur dioxide in the flue gas to chemically react with the alkaline desulfurizer to remove sulfur dioxide, enabling the flue gas to continuously rise, and enabling the flue gas to pass through the purifying cylinder 5 sprayed by the ammonia water, NOX in the flue gas reacts with ammonia water to produce N2, NOX in the flue gas is removed, sulfur dioxide and NOX in the flue gas are removed at the moment, and finally the flue gas rises to the top of the purification tower 1 and is discharged through an air outlet pipe 3, so that desulfurization and denitrification of the flue gas are realized; in the dedusting, desulfurization and denitrification processes, slurry impacts on the inner wall of the purification cylinder 5, then the slurry flows along with the inner wall of the purification cylinder 5 and is discharged from the drainage groove 10 to flow to the fixed joint of the disc 4 and the purification cylinder 5, finally the slurry is discharged from the discharge pipe 8 on one side of the disc 4, and similarly, ammonia water is discharged from the discharge pipe 8; the dedusting, desulfurization and denitrification device can realize integrated purification of flue gas, namely, the flue gas can remove dust, sulfur dioxide and NOX in the flue gas through the purification tower 1, so that the dedusting, desulfurization and denitrification efficiency of the flue gas is improved;
meanwhile, the slurry or the ammonia water impacts the inner wall of the purifying cylinder 5, and under the guide of the guide plate 11, the slurry or the ammonia water flowing on the inner wall of the purifying cylinder 5 is prevented from dropping to the inner bottom of the purifying tower 1 from the exhaust port 9 to pollute the purifying tower 1;
and the other end of the water discharge pipe 14 extends out of the purification tower 1; when the slurry or the ammonia water is discharged from the atomizing nozzle 6, a part of the slurry or the ammonia water is collected and dropped at the intermediate position of the purification cartridge 5, and for this purpose, a receiving tank 12 is provided below the exhaust port 9, and the slurry or the ammonia water dropped from the exhaust port 9 is dropped into the receiving tank 12 and then discharged from the purification tower 1 through a drain pipe 14.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.
Claims (6)
1. The utility model provides a boiler is dust removal SOx/NOx control device for flue gas which characterized in that: comprises a purification tower (1), wherein two layers of flue gas desulfurization and denitrification units are arranged in the purification tower (1); the bottom of the purification tower (1) is provided with an air inlet pipe (2), the exhaust end of the air inlet pipe (2) is positioned at the bottom of the purification tower (1), the upper end of the purification tower (1) is provided with an air outlet pipe (3), and the air outlet pipe (3) is communicated with the upper end of the purification tower (1); the flue gas desulfurization and denitration unit comprises a disc (4), a purification cylinder (5), an atomizing nozzle (6), an inlet pipe (7) and a discharge pipe (8); the edge of the disc (4) is fixedly connected to the inner side wall of the purification tower (1), an exhaust port (9) is formed in the middle of the disc (4), a purification cylinder (5) is fixedly connected to the upper end of a hole of the exhaust port (9), a plurality of atomizing nozzles (6) are arranged on the inner wall of the purification cylinder (5), the interior of the purification cylinder (5) is hollow, and the interior of the purification cylinder (5) is communicated with an inlet pipe (7); the fixed connection part of the disc (4) and the purification tower (1) is fixedly connected with one end of a calandria (8), and the other end of the calandria (8) extends out of the purification tower (1); and a plurality of drainage grooves (10) are uniformly formed in the purification cylinder (5).
2. The dust removal, desulfurization and denitrification device for the boiler flue gas according to claim 1, characterized in that: a guide plate (11) is arranged at the notch of the drainage groove (10); one edge rigid coupling of guide plate (11) is at the inner wall of purifying cylinder (5), and another edge of guide plate (11) flushes with the notch bottom surface of water drainage tank (10), and another edge slope of guide plate (11) points to the upper end of purifying cylinder (5).
3. The dust removal, desulfurization and denitrification device for the boiler flue gas according to claim 1, characterized in that: every be equipped with below gas vent (9) and accept basin (12), the edge of accepting basin (12) is equipped with bracing piece (13), accepts basin (12) through bracing piece (13) rigid coupling on the inner wall of purifying tower (1), is equipped with drain pipe (14) on accepting basin (12), and inside basin (12) was accepted in the one end intercommunication of drain pipe (14), the other end of drain pipe (14) stretches out purifying tower (1) outside.
4. The dust removal, desulfurization and denitrification device for the boiler flue gas according to claim 1, characterized in that: the exhaust end of the air inlet pipe (2) is reverse U-shaped and is arranged inside the purification tower (1).
5. The dust removal, desulfurization and denitrification device for the boiler flue gas according to claim 1, characterized in that: a dust removal box (15) is arranged in the purification tower (1); the dust removal box (15) is fixedly connected to the inner bottom surface of the purification tower (1), a plurality of strip-shaped through holes (16) are formed in the side wall of the dust removal box (15), and a dust removal filter screen is attached to the inner wall of the dust removal box (15); and the exhaust end of the air inlet pipe (2) penetrates through the interior of the dust removal box (15).
6. The dust removal, desulfurization and denitrification device for the boiler flue gas according to claim 3, wherein: the upper end of the receiving water tank (12) is flush with the lower edge of the disc (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120548384.6U CN215842432U (en) | 2021-03-17 | 2021-03-17 | Dust removal SOx/NOx control device for boiler flue gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120548384.6U CN215842432U (en) | 2021-03-17 | 2021-03-17 | Dust removal SOx/NOx control device for boiler flue gas |
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| CN215842432U true CN215842432U (en) | 2022-02-18 |
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| CN202120548384.6U Active CN215842432U (en) | 2021-03-17 | 2021-03-17 | Dust removal SOx/NOx control device for boiler flue gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115738641A (en) * | 2022-12-03 | 2023-03-07 | 江苏环球环境工程集团有限公司 | Atomizing desulfurization denitration exhaust treatment device |
-
2021
- 2021-03-17 CN CN202120548384.6U patent/CN215842432U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115738641A (en) * | 2022-12-03 | 2023-03-07 | 江苏环球环境工程集团有限公司 | Atomizing desulfurization denitration exhaust treatment device |
| CN115738641B (en) * | 2022-12-03 | 2023-08-15 | 江苏环球环境工程集团有限公司 | Atomization desulfurization and denitrification waste gas treatment device |
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Effective date of registration: 20220217 Address after: 037300 No. 1619, Yunzhou street, Yunzhou District, Datong City, Shanxi Province Patentee after: Datong Institute of clean and efficient utilization of coal Address before: 037000 No. 9, unit 2, 15th floor, urban Bureau, Datong City, Shanxi Province Patentee before: Wang Shuo |