CN211358045U - Internal circulation semi-dry desulfurization, denitrification and demercuration integrated system - Google Patents
Internal circulation semi-dry desulfurization, denitrification and demercuration integrated system Download PDFInfo
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- CN211358045U CN211358045U CN201921822631.6U CN201921822631U CN211358045U CN 211358045 U CN211358045 U CN 211358045U CN 201921822631 U CN201921822631 U CN 201921822631U CN 211358045 U CN211358045 U CN 211358045U
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Abstract
The utility model discloses an integrated system for desulfurization, denitrification and demercuration by an internal circulation semidry method, which comprises a flue gas inlet pipe, wherein one end of a connecting pipe is provided with a dust removing cylinder, the top end of the dust removing cylinder is provided with a cylinder cover, one end of the dust removing cylinder is connected with an oxidation cylinder through the connecting pipe, one end of the oxidation cylinder is connected with an absorption cylinder through the connecting pipe, and one end of the absorption cylinder is connected with a flue gas outlet pipe through the connecting pipe and a connecting bent pipe; through setting up a dust removal section of thick bamboo, an oxidation section of thick bamboo and an absorption section of thick bamboo, the flue gas is gone out through a dust removal section of thick bamboo earlier, solid-state sulphide and simple substance mercury, pass through an oxidation section of thick bamboo again, oxidation such as sulfur nitre mercury in the oxidizing agent in the oxidation section of thick bamboo with the flue gas is convenient for absorb, absorb through the absorbent in the absorption section of thick bamboo at last, carry out SOx/NOx control demercuration to the flue gas simultaneously and handle, when reducing the independent processing, the device is loaded down with trivial details, the big scheduling problem of area, it is simple and convenient to.
Description
Technical Field
The utility model relates to a SOx/NOx control demercuration technical field specifically is inner loop semidry process SOx/NOx control demercuration integration system.
Background
China is rich in coal resources, SO2, NOx and Hg emitted by coal-fired flue gas have obvious harm to human health and ecological environment, and electric power production is taken as the largest main body of coal consumption, SO that the control of pollutants in coal-fired power plants becomes the most urgent task in the field of air pollution control in China, and the most mature methods for controlling the three pollutants are as follows: wet desulfurization, selective catalytic reduction denitration and activated carbon injection demercuration;
but desulfurization, denitration and demercuration system in the existing market carries out desulfurization, denitration and demercuration alone, though efficient, but can not centralized processing, has caused the occupation of land space big, can't reduce occupation of land cost, has caused the investment cost height, is unfavorable for large-scale construction and use, leads to the problem that desulfurization, denitration and demercuration can not effectual implementation.
SUMMERY OF THE UTILITY MODEL
The utility model provides an inner loop semi-dry desulfurization, denitration and demercuration integration system can effectively solve and propose desulfurization, denitration and demercuration system on the existing market alone and carry out desulfurization, denitration and demercuration in the above-mentioned background art, though efficient, but can not centralized processing, it is big to have caused the occupation of land space, can't reduce the occupation of land cost, has caused the investment cost height, is unfavorable for large-scale construction and use, leads to the problem that desulfurization, denitration and demercuration can not effectual implementation.
In order to achieve the above object, the utility model provides a following technical scheme: the integrated system for desulfurization, denitrification and demercuration by the circulating semidry method comprises a flue gas inlet pipe, wherein the top end of the flue gas inlet pipe is connected with a connecting bent pipe through a flange, the bottom of the flue gas inlet pipe is connected with a three-way ball valve (22) through a flange, one end, far away from the flue gas inlet pipe, of the connecting bent pipe is connected with a connecting pipe through a flange, a dedusting cylinder is installed at one end of the connecting pipe, a cylinder cover is installed at the top end of the dedusting cylinder, one end of the dedusting cylinder is connected with an oxidation cylinder through the connecting pipe, one end of the oxidation cylinder is connected with an absorption cylinder through the connecting pipe, one end of the absorption cylinder is connected with a tee pipe through threads, a concentration measuring meter is installed at one end, close to the absorption cylinder, of the.
Preferably, the oxidation cylinder and the absorption cylinder have the same structure, and the two ends of the oxidation cylinder and the absorption cylinder and the connecting pipe are fixed by arc welding.
Preferably, the inside of an oxidation section of thick bamboo and an absorption section of thick bamboo is all the embedding and is installed first filter core, the inside of an oxidation section of thick bamboo and an absorption section of thick bamboo is all the embedding and is installed the second filter core, a plurality of circular passageways have all been seted up at the middle part of first filter core and second filter core, first filter core and the inside packing of second filter core in the oxidation section of thick bamboo have the oxidant, first filter core and the inside packing of second filter core in the absorption section of thick bamboo have the absorbent.
Preferably, the first filter element and the second filter element have the same structure, and the circular channel on the first filter element is aligned with the middle of the two circular channels on the second filter element.
Preferably, the dust removing cylinder is internally provided with a protective filter cylinder, the protective filter cylinder is internally provided with a dust removing cloth cylinder, the middle of the protective filter cylinder is provided with a support rod, the top end of the dust removing cylinder is uniformly provided with four fixing grooves, and the top end of the protective filter cylinder is uniformly welded with four fixing buckles.
Preferably, four fixed buckles are embedded in the fixed grooves, a sealing gasket is embedded in the bottom end of the cylinder cover, and the cylinder cover is fixedly connected with the dust removal cylinder through threads.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of scientific and reasonable structure, safe and convenient use
1. Through setting up a dust removal section of thick bamboo, an oxidation section of thick bamboo and an absorption section of thick bamboo, the flue gas is gone out through a dust removal section of thick bamboo earlier, solid-state sulphide and simple substance mercury, pass through an oxidation section of thick bamboo again, oxidation such as sulfur nitre mercury in the oxidizing agent in the oxidation section of thick bamboo with the flue gas is convenient for absorb, absorb through the absorbent in the absorption section of thick bamboo at last, carry out SOx/NOx control demercuration to the flue gas simultaneously and handle, when reducing the independent processing, the device is loaded down with trivial details, the big scheduling problem of area, it is simple and convenient to.
2. Through setting up out a dust removal cloth section of thick bamboo, a section of thick bamboo, dust removal cloth section of thick bamboo, bracing piece, fixed slot and fixed knot, solid impurity filters in the flue gas conveniently to dust removal cloth section of thick bamboo dismantles conveniently, easily clears up the impurity in the dust removal cloth section of thick bamboo.
3. Through setting up first filter core, second filter core and the circular passageway that interlocks each other, when making the flue gas get into an oxidation section of thick bamboo and an absorption section of thick bamboo, obtain the buffering, the time that the extension flue gas stayed in a section of thick bamboo makes things convenient for abundant oxidation and abundant SOx/NOx control demercuration of flue gas.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments 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 structural diagram of the present invention;
FIG. 2 is a schematic sectional view of the filter element of the present invention;
fig. 3 is a schematic structural diagram of the filter element of the present invention;
FIG. 4 is a schematic view of the internal structure of the dust-removing cylinder of the present invention;
FIG. 5 is a schematic top view of the dust removing device of the present invention;
reference numbers in the figures: 1. a flue gas inlet pipe; 2. connecting a bent pipe; 3. a connecting pipe; 4. a dust removal cylinder; 5. a cylinder cover; 6. an oxidation cylinder; 7. an absorption cylinder; 8. a flue gas outlet pipe; 9. a first filter element; 10. a second filter element; 11. a circular channel; 12. an oxidizing agent; 13. an absorbent; 14. a guard filter cartridge; 15. a dust removal cloth cylinder; 16. a support bar; 17. fixing grooves; 18. a fixing buckle; 19. a tee pipe fitting; 20. a concentration measuring meter; 21. a circulation pipe; 22. three-way ball valve.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example (b): as shown in figures 1-5, the utility model provides a technical scheme, the integrated system of desulfurization, denitrification and demercuration of internal recycle semidry process comprises a flue gas inlet pipe 1, the top end of the flue gas inlet pipe 1 is connected with a connecting elbow pipe 2 through a flange, the bottom of the flue gas inlet pipe 1 is connected with a three-way ball valve 22 through a flange, the end of the connecting elbow pipe 2 far away from the flue gas inlet pipe 1 is connected with a connecting pipe 3 through a flange, a dust removing cylinder 4 is installed at one end of the connecting pipe 3, a cylinder cover 5 is installed at the top end of the dust removing cylinder 4, one end of the dust removing cylinder 4 is connected with an oxidation cylinder 6 through the connecting pipe 3, one end of the oxidation cylinder 6 is connected with an absorption cylinder 7 through the connecting pipe 3, in order to facilitate the connection of the oxidation cylinder 6 and the absorption cylinder 7, the structures of the oxidation cylinder 6 and the absorption cylinder 7 are the same, the, a concentration measuring meter 20 is arranged at one end of the three-way pipe 19 close to the absorption cylinder 7, the top end of the three-way pipe 19 is connected with the flue gas outlet pipe 8 through threads, and the bottom end of the three-way pipe 19 is connected with a circulating pipeline 21 through threads.
The oxidation cylinder 6 and the absorption cylinder 7 are internally provided with a first filter element 9 in an embedded manner, the oxidation cylinder 6 and the absorption cylinder 7 are internally provided with a second filter element 10 in an embedded manner, the middle parts of the first filter element 9 and the second filter element 10 are respectively provided with a plurality of circular channels 11, in order to facilitate the buffering reaction of flue gas between the first filter element 9 and the second filter element 10, the first filter element 9 and the second filter element 10 have the same structure, the circular channels 11 on the first filter element 9 are aligned with the middle parts of the two circular channels 11 on the second filter element 10, the first filter element 9 and the second filter element 10 in the oxidation cylinder 6 are internally filled with an oxidant 12, the oxidation cylinder 6 is oxidized by the oxidant 12 in the first filter element 9 and the second filter element 10, the oxidant 12 is sodium peroxide, the first filter element 9 and the second filter element 10 in the absorption cylinder 7 are internally filled with an absorbent 13, the absorption cylinder 7 is desulfurized, denitrated and demercurated by the absorbent 13 in the first filter element 9 and the second filter, the composition of the absorbent 13 is limestone.
The internally mounted of a dust removal section of thick bamboo 4 has a protection section of thick bamboo 14, the internally mounted of a protection section of thick bamboo 14 has a dust removal cloth section of thick bamboo 15, the mid-mounting of a protection section of thick bamboo 14 has a bracing piece 16, four fixed slots 17 have evenly been seted up on the top of a dust removal section of thick bamboo 4, the even welding in top of a protection section of thick bamboo 14 has four fixed knots 18, for the convenience of the fixed of a protection section of thick bamboo 14, four fixed knots 18 embedding are installed in fixed slot 17, the bottom embedding ann of cover 5 changes sealed the pad, pass through screw thread fixed.
The utility model discloses a theory of operation and use flow: firstly, rotating the three-way ball valve 22 to conduct and conduct the flue gas inlet pipe 1 and the connecting elbow pipe 2, introducing the flue gas to be treated from the flue gas inlet pipe 1, introducing the flue gas into a dedusting cloth cylinder 15 in a dedusting cylinder 4 through the connecting elbow pipe 2 and the connecting pipe 3, filtering solid impurities such as solid sulfides in the flue gas through the dedusting cloth cylinder 15, facilitating the solid impurities to enter an oxidation cylinder 6 and an absorption cylinder 7, reducing the blockage of a first filter element 9 and a second filter element 10, opening a cylinder cover 5 after a period of use, taking the dedusting cloth cylinder 15 down from the connecting pipe 3, holding the fixing buckle 18 by hand, pulling out the protection filter cylinder 14 and the dedusting cloth cylinder 15 upwards, moving the bottom end of the dedusting cloth cylinder 15 to the top end of the dedusting cloth cylinder 15, and pouring out solid particles in the dedusting cloth cylinder 15;
after being filtered by a dust removal cloth tube 15, the flue gas enters an oxidation tube 6 from a connecting tube 3 at the bottom end of a dust removal tube 4, because of the staggered arrangement of a first filter element 9 and a second filter element 10 in the oxidation tube 6, the flue gas can stay for a long time in the oxidation tube 6, the flue gas fully reacts with an oxidant 12, the phenomenon that the unoxidized flue gas enters an absorption tube 7 to cause desulfurization, denitrification and demercuration supplement air is reduced, the oxidized flue gas enters the absorption tube 7 again to react with an absorbent 13 in the absorption tube 7, the desulfurization, denitrification and demercuration treatment can be simultaneously carried out on the flue gas, the device is simplified, the occupied area is reduced, the large-scale popularization and use are convenient, finally, the concentration of mercury sulfate in the gas from the absorption tube 7 is measured by a concentration detection table 20, if the concentration is qualified, a flue gas outlet tube 8 is discharged, if the concentration is unqualified, a three-way ball valve, flue gas enters the dust removing cylinder 4 through the circulating pipeline 21, and desulfurization, denitrification and demercuration are carried out in a circulating mode.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The integrated system for desulfurization, denitrification and demercuration by the internal circulation semidry method comprises a flue gas inlet pipe (1), and is characterized in that: the device is characterized in that the top end of the flue gas inlet pipe (1) is connected with a connecting bent pipe (2) through a flange, the bottom of the flue gas inlet pipe (1) is connected with a three-way ball valve (22) through a flange, one end, far away from the flue gas inlet pipe (1), of the connecting bent pipe (2) is connected with a connecting pipe (3) through a flange, one end of the connecting pipe (3) is provided with a dust removing cylinder (4), the top end of the dust removing cylinder (4) is provided with a cylinder cover (5), one end of the dust removing cylinder (4) is connected with an oxidation cylinder (6) through the connecting pipe (3), one end of the oxidation cylinder (6) is connected with an absorption cylinder (7) through the connecting pipe (3), one end of the absorption cylinder (7) is connected with a three-way pipe (19) through threads, one end, close to the absorption cylinder (7), of the three-way pipe (, the bottom end of the three-way pipe fitting (19) is connected with a circulating pipeline (21) through threads.
2. The integrated system for desulfurization, denitrification and demercuration by internal circulation semi-dry process according to claim 1, wherein the oxidation cylinder (6) and the absorption cylinder (7) have the same structure, and the two ends of the oxidation cylinder (6) and the absorption cylinder (7) and the connecting pipe (3) are fixed by arc welding.
3. The integrated system for desulfurization, denitrification and demercuration by the internal circulation semi-dry method as claimed in claim 1, wherein a first filter element (9) is embedded in the oxidation cylinder (6) and the absorption cylinder (7), a second filter element (10) is embedded in the oxidation cylinder (6) and the absorption cylinder (7), a plurality of circular channels (11) are formed in the middle of the first filter element (9) and the middle of the second filter element (10), an oxidant (12) is filled in the first filter element (9) and the second filter element (10) in the oxidation cylinder (6), and an absorbent (13) is filled in the first filter element (9) and the second filter element (10) in the absorption cylinder (7).
4. The integrated system for desulfurization, denitrification and demercuration by internal circulation semidry process according to claim 3, wherein the first filter element (9) and the second filter element (10) have the same structure, and the circular channel (11) on the first filter element (9) is aligned with the middle of the two circular channels (11) on the second filter element (10).
5. The integrated system for desulfurization, denitrification and demercuration by the internal circulation semi-dry method as claimed in claim 1, wherein a protective filter cylinder (14) is installed inside the dust removing cylinder (4), a dust removing cloth cylinder (15) is installed inside the protective filter cylinder (14), a support rod (16) is installed in the middle of the protective filter cylinder (14), four fixing grooves (17) are uniformly formed in the top end of the dust removing cylinder (4), and four fixing buckles (18) are uniformly welded to the top end of the protective filter cylinder (14).
6. The integrated system for desulfurization, denitrification and demercuration by the internal circulation semidry process as claimed in claim 5, wherein four fixing buttons (18) are embedded in the fixing grooves (17), the bottom end of the cylinder cover (5) is embedded and rotated with a sealing gasket, and the cylinder cover (5) is fixedly connected with the dust removal cylinder (4) through threads.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921822631.6U CN211358045U (en) | 2019-10-28 | 2019-10-28 | Internal circulation semi-dry desulfurization, denitrification and demercuration integrated system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921822631.6U CN211358045U (en) | 2019-10-28 | 2019-10-28 | Internal circulation semi-dry desulfurization, denitrification and demercuration integrated system |
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| CN211358045U true CN211358045U (en) | 2020-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090054A (en) * | 2022-06-22 | 2022-09-23 | 华能湖南岳阳发电有限责任公司 | Flue gas desulfurization and denitrification treatment device and method for coal-fired power plant |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090054A (en) * | 2022-06-22 | 2022-09-23 | 华能湖南岳阳发电有限责任公司 | Flue gas desulfurization and denitrification treatment device and method for coal-fired power plant |
| CN115090054B (en) * | 2022-06-22 | 2024-05-28 | 华能湖南岳阳发电有限责任公司 | Flue gas desulfurization and denitrification treatment device and method for coal-fired power plant |
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