CN213078043U - Flue gas is administered and is used denitration tower convenient to precooling - Google Patents
Flue gas is administered and is used denitration tower convenient to precooling Download PDFInfo
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- CN213078043U CN213078043U CN202021802401.6U CN202021802401U CN213078043U CN 213078043 U CN213078043 U CN 213078043U CN 202021802401 U CN202021802401 U CN 202021802401U CN 213078043 U CN213078043 U CN 213078043U
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- precooling
- denitration
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Abstract
The utility model relates to a flue gas is administered and is used denitration tower convenient to precooling, including the tower body, a serial communication port, the coaxial ann in top of tower body has the pipe of discharging fume, ann has draught fan two on the pipe of discharging fume, a plurality of denitration layers have on upper portion ann in the tower body, the below on denitration layer is equipped with gaseous equipartition board, division board is ann to lower part in the tower body, be equipped with precooling case in the tower body between division board and the gaseous equipartition board, it advances the pipe to link cold water in the bottom of precooling case lateral wall, even there is the outlet pipe on the top of precooling case lateral wall, the outlet pipe advances to manage with cold water and even. The utility model discloses a set up the precooling case that ann has spiral delivery pipe, the cooling water installation to and ann has one-way discharge valve's aqueous ammonia chamber, effectively improved the precooling effect of flue gas, guaranteed to fully take place to react with the denitration layer, denitration efficiency is stable, has improved the treatment effect of nitrogen oxide in the flue gas, need not the processing of manifold cycles, and then has practiced thrift the treatment cost of flue gas processing.
Description
Technical Field
The utility model relates to a flue gas processing apparatus technical field especially relates to a flue gas is administered and is used denitration tower convenient to precooling.
Background
With the gradual emphasis on environmental protection in China and society, strict flue gas treatment is required when waste incineration exhaust gas is discharged, and the waste incineration exhaust gas can be discharged into the atmosphere after reaching the discharge standard. The flue gas denitration is one of indispensable steps in flue gas treatment, and the flue gas denitration means that nitrogen oxide generated is reduced into nitrogen gas, thereby removing the nitrogen oxide in the flue gas, and the denitration tower is used as a device mainly matched with the flue gas denitration work, and is widely applied.
However, when the existing denitration tower for flue gas treatment is used for flue gas treatment, the precooling effect of the flue gas is not ideal, the flue gas does not sufficiently react with the denitration agent, the treatment effect of nitrogen oxides in the flue gas is poor, multiple times of cyclic treatment are needed, and the treatment cost of the flue gas treatment is increased.
Disclosure of Invention
The utility model discloses aim at solving prior art not enough, and provide a flue gas is administered and is used denitration tower convenient to precooling.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a denitration tower for flue gas treatment convenient for precooling comprises a tower body and is characterized in that a smoke exhaust pipe is coaxially arranged above the tower body, a second induced draft fan is arranged on the smoke exhaust pipe, an induced draft cover which is communicated up and down is fixedly connected between the bottom of the smoke exhaust pipe and the top end of the tower body, a drying layer for flue gas to pass through is arranged in the induced draft cover, a plurality of denitration layers are arranged at the upper part in the tower body, the denitration layers are ceramic fiber layers attached with denitration catalysts, a gas distribution plate is arranged below the denitration layers, the gas distribution plate is arranged in the tower body, a partition plate is arranged at the lower part in the tower body, an ammonia water cavity is arranged in the tower body below the partition plate, a sewage discharge pipe communicated with the ammonia water cavity is arranged at the bottom of the tower body, an ammonia water supply pipe communicated with the ammonia water cavity is arranged on the outer side wall of the bottom of the tower body, a one-way exhaust valve communicated with the ammonia water cavity is arranged on the, be located and be equipped with the precooling case in the tower body between division board and the gaseous equipartition board, the rigid coupling has the fixed column between the outer wall of precooling case and the inner wall of tower body all around, at precooling incasement level ann has spiral delivery pipe, the lateral wall that spiral delivery pipe's one end was worn out the precooling case even has into the tobacco pipe, it has the lateral wall and the external flue gas air feeder intercommunication to wear out the tower body to advance the other end of tobacco pipe, spiral delivery pipe's the other end even has the connecting pipe, the other end of connecting pipe passes the lateral wall of precooling case in proper order, the division board is located the aqueous ammonia intracavity, ann has draught fan one on the pipeline of connecting pipe and spiral delivery pipe junction, it has cold water to advance the pipe to link in the bottom of precooling case lateral wall, it has the.
The tower body and the induced draft cover are arranged in an integrated structure.
The drying layer adopts a super absorbent resin plate, and filter holes are uniformly distributed on the super absorbent resin plate.
And a sewage discharge valve is arranged on a pipeline of the sewage discharge pipe.
And a valve switch is arranged on a pipeline of the ammonia water supply pipe.
The outer side of the top end of the precooling box is provided with a conical cover, and the outer edge of the conical cover extends out of the outer wall of the precooling box and is provided with a gap with the inner wall of the tower body.
The water cooling device comprises a cold water tank fixedly connected to the outer wall of the tower body, a water suction pump is arranged at the bottom in the cold water tank, the water inlet end of the cold water inlet pipe sequentially penetrates through the side wall of the tower body, the side wall of the cold water tank is connected with the water suction pump, the water outlet end of the water outlet pipe penetrates through the side wall of the tower body and is connected with a water-cooling refrigerator, the water-cooling refrigerator is installed on the outer side of the top end of the cold water tank, a circulating pipe communicated with the cold water tank is installed between the water outlet end of the water-cooling refrigerator and the top end of the cold.
The utility model has the advantages that: the utility model is simple in operation reliably, through setting up the precooling case that ann has spiral delivery pipe, the cooling water installation to and ann has one-way discharge valve's aqueous ammonia chamber, effectively improved the precooling effect of flue gas, guaranteed to fully take place to react with the denitration layer, denitration efficiency is stable, has improved the treatment effect of nitrogen oxide in the flue gas, need not the processing of manifold cycles, and then has practiced thrift the treatment cost of flue gas.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1-a cold water tank; 2-a water pump; 3-cold water inlet pipe; 4-a circulation pipe; 5-water cooling refrigerator; 6-water outlet pipe; 7-connecting pipe; 8-a first induced draft fan; 9-spiral conveying pipe; 10-a pre-cooling box; 11-gas uniform distribution plate; 12-a denitration layer; 13-drying the layer; 14-a smoke exhaust pipe; 15-induced draft fan II; 16-an induced draft cover; 17-a tower body; 18-fixed column; 19-smoke inlet pipe; 20-one-way exhaust valve; 21-a partition plate; 22-ammonia cavity; 23-a sewage draining pipe; a 24-ammonia water supply pipe;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in figure 1, a denitration tower for flue gas treatment convenient for precooling comprises a tower body 17, and is characterized in that a smoke exhaust pipe 14 is coaxially arranged above the tower body 17, a second induced draft fan 15 is arranged on the smoke exhaust pipe 14, an induced draft hood 16 which is communicated up and down is fixedly connected between the bottom of the smoke exhaust pipe 14 and the top end of the tower body 17, a drying layer 13 for flue gas to pass through is arranged in the induced draft hood 16, a plurality of denitration layers 12 are arranged at the upper part in the tower body 17, the denitration layers 12 are ceramic fiber layers attached with denitration catalysts, a gas distribution plate 11 is arranged below the denitration layers 12, the gas distribution plate 11 is arranged in the tower body 17, a partition plate 21 is arranged at the lower part in the tower body 17, an ammonia water cavity 22 is arranged in the tower body 17 below the partition plate 21, a sewage discharge pipe 23 communicated with the ammonia water cavity 22 is arranged at the bottom of the tower body 17, an ammonia water supply pipe 24 communicated with the ammonia water cavity 22 is arranged on the, a one-way exhaust valve 20 communicated with an ammonia water cavity 22 is arranged on a partition plate 21, the gas of the one-way exhaust valve 20 is exhausted from the ammonia water cavity 22 to the outside, a pre-cooling box 10 is arranged in a tower body 17 between the partition plate 21 and a gas uniform distribution plate 11, a fixed column 18 is fixedly connected between the periphery of the outer wall of the pre-cooling box 10 and the inner wall of the tower body 17, a spiral conveying pipe 9 is horizontally arranged in the pre-cooling box 10, one end of the spiral conveying pipe 9 penetrates through the side wall of the pre-cooling box 10 to be connected with a smoke inlet pipe 19, the other end of the smoke inlet pipe 19 penetrates through the side wall of the tower body 17 to be communicated with an external smoke gas supply device, the other end of the spiral conveying pipe 9 is connected with a connecting pipe 7, the other end of the connecting pipe 7 sequentially penetrates through the side wall of the pre-cooling box 10, the partition plate 21 is arranged in the ammonia water cavity 22, the top end of the outer side wall of the precooling tank 10 is connected with a water outlet pipe 6, the water outlet pipe 6 and the cold water inlet pipe 3 are connected with the same cold water device, and the cold water device is arranged on the outer wall of the tower body 17.
The tower body 17 and the induced draft cover 16 are arranged in an integrated structure.
The drying layer 13 is made of a super absorbent resin plate, and filter holes are uniformly distributed in the super absorbent resin plate.
And a sewage discharge valve is arranged on the pipeline of the sewage discharge pipe 23.
And a valve switch is arranged on a pipeline of the ammonia water supply pipe 24.
The top outside of precooling case 10 is equipped with the toper cover, and the outer fringe of toper cover stretches out the outer wall of precooling case 10 and is equipped with the clearance with the inner wall of tower body 17 between.
The cold water device includes cold water storage cistern 1 of rigid coupling at the tower body 17 outer wall, bottom in the cold water storage cistern 1 is equipped with suction pump 2, cold water advances the lateral wall that the pipe 3 was advanced to the end of intaking in proper order passed tower body 17, the lateral wall and the suction pump 2 of cold water storage cistern 1 are connected, the lateral wall that the play water end of outlet pipe 6 passed tower body 17 even has water-cooled refrigerator 5, water-cooled refrigerator 5 installs in the top outside of cold water storage cistern 1, ann has circulating pipe 4 that is linked together with cold water storage cistern 1 between the play water end of water-cooled refrigerator 5 and the top of cold water storage cistern 1, ann has the water injection pipe with cold water storage cistern 1 intercommunication above.
When the utility model is used, firstly, ammonia water is added into the ammonia water cavity 22 through the ammonia water supply pipe 24, cold water is injected into the cold water tank 1 through the water injection pipe, the water suction pump 2 and the water-cooling refrigerator 5 in the water cooling device are started, the external smoke to be treated is added into the pre-cooling tank 10 through the smoke inlet pipe 19, the draught fan I8 is started, the smoke enters the ammonia water cavity 22 through the connecting pipe 7 along the spiral conveying pipe 9 for gas washing, and is further cooled simultaneously, when the gas in the ammonia water cavity 22 reaches a certain pressure, the washed smoke enters the upper part of the tower body 17 through the one-way exhaust valve 20, the draught fan II 15 is started, the smoke reaches the denitration layer 12 after passing through the gas distribution plate 11, the denitration treatment is carried out, the treated gas is discharged from the smoke exhaust pipe 14 through the drying layer 13, the pre-cooling effect of the smoke is effectively improved, the full reaction with the denitration layer 12 is ensured, the denitration efficiency is stable, the treatment, need not the multiple cycle and handle, and then practiced thrift the treatment cost that the flue gas was handled, the utility model is simple in operation reliably.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.
Claims (7)
1. A denitration tower convenient for precooling for flue gas treatment comprises a tower body (17) and is characterized in that a smoke exhaust pipe (14) is coaxially arranged above the tower body (17), a second induced draft fan (15) is arranged on the smoke exhaust pipe (14), an induced draft cover (16) which is communicated up and down is fixedly connected between the bottom of the smoke exhaust pipe (14) and the top end of the tower body (17), a drying layer (13) for flue gas to pass through is arranged in the induced draft cover (16), a plurality of denitration layers (12) are arranged on the upper portion in the tower body (17), the denitration layers (12) are ceramic fiber layers attached with denitration catalysts, gas uniform distribution plates (11) are arranged below the denitration layers (12), the gas uniform distribution plates (11) are arranged in the tower body (17), a partition plate (21) is arranged on the lower portion in the tower body (17), an ammonia water cavity (22) is arranged in the tower body (17) below the partition plate (21), and a sewage discharge pipe (23) communicated with the ammonia water cavity (22) is arranged at the bottom of the tower body (, an ammonia water liquid supply pipe (24) communicated with an ammonia water cavity (22) is arranged on the outer side wall of the bottom of the tower body (17), a one-way exhaust valve (20) communicated with the ammonia water cavity (22) is arranged on a partition plate (21), the gas of the one-way exhaust valve (20) is exhausted from the ammonia water cavity (22) to the outside, a precooling box (10) is arranged in the tower body (17) between the partition plate (21) and a gas uniform distribution plate (11), fixed columns (18) are fixedly connected between the periphery of the outer wall of the precooling box (10) and the inner wall of the tower body (17), a spiral conveying pipe (9) is horizontally arranged in the precooling box (10), one end of the spiral conveying pipe (9) penetrates through the side wall of the precooling box (10) to be connected with a smoke inlet pipe (19), the other end of the smoke inlet pipe (19) penetrates through the side wall of the tower body (17) to be communicated with an external smoke gas supply device, and, the other end of connecting pipe (7) passes the lateral wall of precooling case (10) in proper order, division board (21) are located ammonia chamber (22), ann has draught fan (8) on the pipeline of connecting pipe (7) and spiral delivery pipe (9) junction, it advances pipe (3) to link cold water in the bottom of precooling case (10) lateral wall, it has outlet pipe (6) to link on the top of precooling case (10) lateral wall, outlet pipe (6) advance pipe (3) with cold water and link with same cold water device, the cold water device is installed on the outer wall of tower body (17).
2. The denitration tower convenient for precooling flue gas treatment as recited in claim 1, wherein the tower body (17) and the induced draft hood (16) are arranged in an integrated structure.
3. The denitration tower for flue gas treatment convenient for precooling according to claim 1, wherein the drying layer (13) is made of a super absorbent resin plate, and filter holes are uniformly distributed on the super absorbent resin plate.
4. The denitration tower for flue gas treatment convenient for precooling according to claim 1, wherein a pipeline of the blowdown pipe (23) is provided with a blowdown valve.
5. The denitration tower convenient for precooling flue gas treatment as claimed in claim 1, wherein a valve switch is arranged on a pipeline of the ammonia water supply pipe (24).
6. The denitration tower convenient for precooling flue gas treatment as recited in claim 1, wherein a conical cover is arranged outside the top end of the precooling box (10), and the outer edge of the conical cover extends out of the outer wall of the precooling box (10) and is provided with a gap with the inner wall of the tower body (17).
7. The denitration tower convenient for precooling flue gas treatment as claimed in claim 1, wherein the water cooling device comprises a cold water tank (1) fixedly connected to the outer wall of the tower body (17), a water suction pump (2) is arranged at the bottom inside the cold water tank (1), the water inlet end of a cold water inlet pipe (3) sequentially penetrates through the side wall of the tower body (17), the side wall of the cold water tank (1) is connected with the water suction pump (2), the water outlet end of a water outlet pipe (6) penetrates through the side wall of the tower body (17) and is connected with a water cooling refrigerator (5), the water cooling refrigerator (5) is installed on the outer side of the top end of the cold water tank (1), a circulating pipe (4) communicated with the cold water tank (1) is installed between the water outlet end of the water cooling refrigerator (5) and the top end of the cold water tank (1), and a water injection pipe communicated with the cold water tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021802401.6U CN213078043U (en) | 2020-08-26 | 2020-08-26 | Flue gas is administered and is used denitration tower convenient to precooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021802401.6U CN213078043U (en) | 2020-08-26 | 2020-08-26 | Flue gas is administered and is used denitration tower convenient to precooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213078043U true CN213078043U (en) | 2021-04-30 |
Family
ID=75632102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021802401.6U Active CN213078043U (en) | 2020-08-26 | 2020-08-26 | Flue gas is administered and is used denitration tower convenient to precooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213078043U (en) |
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2020
- 2020-08-26 CN CN202021802401.6U patent/CN213078043U/en active Active
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