CN218890375U - Flue gas desulfurization and denitrification device - Google Patents
Flue gas desulfurization and denitrification device Download PDFInfo
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- CN218890375U CN218890375U CN202223269612.XU CN202223269612U CN218890375U CN 218890375 U CN218890375 U CN 218890375U CN 202223269612 U CN202223269612 U CN 202223269612U CN 218890375 U CN218890375 U CN 218890375U
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- flue gas
- desulfurizing tower
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to the technical field of desulfurizing towers, and discloses a flue gas desulfurization and denitrification device, which comprises a desulfurizing tower, wherein an air outlet pipe is arranged at the top of the desulfurizing tower, a fan is arranged at the left side of the desulfurizing tower through a communicating pipe, an air inlet pipe is fixedly connected to the left side of the fan, a second access pipe is fixedly arranged in the middle of the inner wall of the desulfurizing tower, and a middle rotary table is fixedly connected to the bottom end of the second access pipe. According to the utility model, the positive pressure generated is utilized to drive the ammonia gas to enter the accommodating column along the through groove and fully contact and react with the flue gas entering the accommodating column, and the flue gas is dispersed by the accommodating column, so that the contact area of the flue gas and the ammonia gas is larger, the reaction rate is higher, meanwhile, the ammonia gas always fills the accommodating column, so that a gas barrier always exists above the flue gas passing through the accommodating column, the rising rate of the flue gas is effectively reduced, the reaction contact time of denitration is increased, and the denitration is more thorough.
Description
Technical Field
The utility model relates to the technical field of desulfurizing towers, in particular to a flue gas desulfurization and denitrification device.
Background
Silicon carbide is an artificially synthesized material, and is mostly prepared by taking quartz sand and stone tar as main raw materials and matching with an organic solvent through high-temperature smelting in a resistance furnace, and is a very good functional ceramic, refractory material, abrasive and metallurgical raw material, and a large amount of sulfur-containing and nitrification compounds can be generated through high temperature in the production process, and the gases are main components affecting the atmospheric environment, SO that desulfurization and denitrification are needed to be specially carried out, and the existing desulfurization and denitrification method mainly comprises the steps of arranging a desulfurizing tower and firstly using a desulfurizing liquid to remove SO in the gases 2 The ammonia gas is injected to absorb N element in the gas, but positive pressure is generated in the desulfurizing tower by the blower in the ammonia gas reaction process, so that the speed of the gas rising and escaping from the desulfurizing tower is increased, the contact time of the gas and the ammonia gas is reduced, and the N element is possibly separated incompletely.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a flue gas desulfurization and denitrification device, which has the advantages of thorough denitrification and good desulfurization effect.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a flue gas desulfurization denitrification facility, includes the desulfurizing tower, the outlet duct is installed at the top of desulfurizing tower, the left side of desulfurizing tower is through communicating pipe installation, the left side fixedly connected with intake pipe of fan, the middle part fixedly mounted of desulfurizing tower inner wall has the second to insert the pipe, the bottom fixedly connected with transfer dish of second inserts the pipe, the surface fixedly connected with intercommunication post of transfer dish, the bottom fixedly connected with shower nozzle of intercommunication post, the inner wall fixedly mounted of desulfurizing tower has the denitration case that is located the second and inserts the pipe top, the through-hole has all been seted up to the upper and lower both sides of denitration case, fixedly connected with holds the post between the upper and lower both sides of denitration case inner wall, the open groove has been seted up to the surface of holding the post, the right side fixedly connected with first access pipe of denitration case, the top of desulfurizing tower inner wall has the active carbon adsorbed layer through solid fixed ring fixedly mounted.
As a preferable technical scheme of the utility model, the outer surface of the second access pipe is fixedly provided with a reinforcing ring, the outer surface of the reinforcing ring is fixedly connected with the inner wall of the desulfurizing tower, and the right end of the second access pipe penetrates through the inner wall of the desulfurizing tower to the right.
As a preferable technical scheme of the utility model, connecting blocks are fixedly connected to the front side and the rear side of the inner wall of the denitration box, and guide rings are fixedly connected to the inner side surfaces of the connecting blocks.
As a preferable technical scheme of the utility model, the accommodating column is opposite to and communicated with the through hole, and the inner diameter value of the accommodating column is equal to the diameter value of the through hole.
As a preferable technical scheme of the utility model, the number of the communication columns is eight, the eight communication columns are equally angularly communicated with the outer surface of the middle rotary table, the number of the spray heads is twenty-four, the twenty-four spray heads are equally divided into eight groups, the eight groups of spray heads are respectively distributed at the bottoms of the eight communication columns, and each group of spray heads are equally distributed along the axial direction of the communication column.
As a preferable technical scheme of the utility model, the left side of the guide ring is provided with a vertical groove, and the height value of the guide ring is smaller than the height value of the inner wall of the denitration box.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the containing column is arranged to disperse the upward moving smoke, so that the improvement of the exposed area of the smoke is facilitated, the negative pressure is generated in the inner cavity of the denitration box after the ammonia is fully filled in the inner cavity of the denitration box, the generated positive pressure is utilized to drive the ammonia to enter the containing column along the through groove and fully contact and react with the smoke entering the containing column, and the smoke is dispersed by the containing column, so that the contact area with the ammonia is larger, the reaction rate is higher, and meanwhile, the ammonia always fills the inside of the containing column, so that a gas barrier always exists above the smoke passing through the containing column, the rising rate of the smoke is effectively reduced, the denitration reaction contact time is prolonged, and the denitration is more thorough.
2. Then, utilize the stiffening ring to consolidate the second access pipe, make the second access pipe of external desulfurizing liquid obtain the inner wall at the desulfurizing tower with stable installation, through eight intercommunication posts and the shower nozzle that are provided with equiangular distribution cover the passageway that rises after getting into the desulfurizing tower inner chamber completely, thereby make the desulfurization not have any dead angle, simultaneously, through being provided with the solid particle impurity of active carbon adsorbed layer in filtering the flue gas, reduce the ascending gas permeability in desulfurizing tower inner chamber, reduce gaseous circulation velocity of flow, make the desulfurization effect of device better.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view showing a partial structure of the inside of the desulfurizing tower of the present utility model;
FIG. 3 is a schematic view in partial front cross-section of the structure of the present utility model;
FIG. 4 is a schematic diagram of the separation of the first access tube, denitration tank, containment column, connection block and deflector ring of the present utility model;
fig. 5 is a schematic diagram showing the separation of the second access pipe, the reinforcing ring, the middle turntable, the communicating column and the nozzle according to the present utility model.
In the figure: 1. a desulfurizing tower; 2. a communicating pipe; 3. an air outlet pipe; 4. a blower; 5. an air inlet pipe; 6. a first access tube; 7. a second access tube; 8. a reinforcing ring; 9. a middle rotary disc; 10. a communication column; 11. a spray head; 12. a denitration box; 13. a through hole; 14. a receiving column; 15. a through groove; 16. a connecting block; 17. a guide ring; 18. a fixing ring; 19. an activated carbon adsorption layer.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present utility model are clearly and completely described below, and it is obvious that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are also within the scope of the utility model.
As shown in fig. 1 to 5, the flue gas desulfurization and denitration device provided by the utility model comprises a desulfurization tower 1, wherein an air outlet pipe 3 is arranged at the top of the desulfurization tower 1, a fan 4 is arranged at the left side of the desulfurization tower 1 through a communicating pipe 2, an air inlet pipe 5 is fixedly connected to the left side of the fan 4, a second access pipe 7 is fixedly arranged in the middle of the inner wall of the desulfurization tower 1, a transfer disk 9 is fixedly connected to the bottom end of the second access pipe 7, a communication column 10 is fixedly connected to the outer surface of the transfer disk 9, a spray head 11 is fixedly connected to the bottom of the communication column 10, a denitration box 12 positioned above the second access pipe 7 is fixedly arranged on the inner wall of the desulfurization tower 1, through holes 13 are formed in the upper side and the lower side of the denitration box 12, a containing column 14 is fixedly connected between the upper side and the lower side of the inner wall of the denitration box 12, a through groove 15 is formed in the outer surface of the containing column 14, a first access pipe 6 is fixedly connected to the right side of the denitration box 12, and an activated carbon adsorption layer 19 is fixedly arranged on the top of the inner wall of the desulfurization tower 1 through a fixing ring 18;
this device is mainly through being provided with and holding post 14 and will disperse the flue gas that reciprocates, help improving the exposed area of flue gas, access sufficient ammonia to the inside of denitration case 12 through being provided with first access pipe 6, the continuous ammonia source of rethread circulation produces the malleation in the inside of denitration case 12, after the inner chamber of denitration case 12 is full of ammonia, utilize the malleation that produces to drive ammonia along logical groove 15 entering hold post 14 inside, and fully contact and react with the flue gas that gets into and hold post 14 inside, because the flue gas is held post 14 and disperses, therefore its area of contact with ammonia is bigger, the reaction rate is higher, simultaneously, because ammonia is always full in holding post 14 inside, make the flue gas top that holds post 14 through holding the post have the gas barrier all the time, the rate that the flue gas risees has effectively been reduced, make the reaction contact time of denitration increase, the denitration is more thorough.
Simultaneously, through being provided with active carbon adsorption layer 19 in the solid particle impurity in the filtration flue gas, reduce the ascending gas permeability of desulfurizing tower 1 inner chamber, reduce the circulation velocity of flow of gas, make the desulfurization effect of device better.
The outer surface of the second access pipe 7 is fixedly provided with a reinforcing ring 8, the outer surface of the reinforcing ring 8 is fixedly connected with the inner wall of the desulfurizing tower 1, and the right end of the second access pipe 7 penetrates through the inner wall of the desulfurizing tower 1 to the right;
the reinforcing ring 8 is sleeved on the outer surface of the second access pipe 7 positioned in the desulfurizing tower 1 and used for reinforcing the second access pipe 7, so that the second access pipe 7 and the transfer plate 9 are more stably arranged in the inner cavity of the desulfurizing tower 1. And the right end of the second access pipe 7 extends out of the desulfurizing tower 1 to be connected with a desulfurizing liquid conveying device.
Wherein, the front and back sides of the inner wall of the denitration box 12 are fixedly connected with a connecting block 16, and the inner side surface of the connecting block 16 is fixedly connected with a guide ring 17;
the arrangement of the guide ring 17 is to prevent ammonia gas entering the inner cavity of the denitration box 12 leftwards through the first access pipe 6 from entering the accommodating columns 14 directly through the rightmost through grooves 15, so that uniformity of ammonia gas in the plurality of accommodating columns 14 is damaged, one side, closest to the first access pipe 6, of the guide ring 17 is blocked, and when the ammonia gas flows leftwards through the outer ring of the guide ring 17, the inner cavity of the denitration box 12 is uniformly filled through the upper side and the lower side of the guide ring 17.
Wherein, the accommodating column 14 is opposite to and communicated with the through hole 13, and the inner diameter value of the accommodating column 14 is equal to the diameter value of the through hole 13;
the accommodating column 14 is fixedly connected with the upper side and the lower side of the inner wall of the denitration box 12, so that flue gas can conveniently pass upwards and fully react with ammonia gas from the inner cavity of the denitration box 12.
The number of the communication columns 10 is eight, the eight communication columns 10 are communicated with the outer surface of the transfer disc 9 at equal angles, the number of the spray heads 11 is twenty-four, the twenty-four spray heads 11 are evenly divided into eight groups, the eight groups of spray heads 11 are respectively distributed at the bottoms of the eight communication columns 10, and each group of spray heads 11 are evenly distributed along the axial direction of the communication column 10;
the design of the equal angle distribution of eight communication columns 10 is on the one hand in order to be more even with the desulfurization liquid that sprays downwards through shower nozzle 11, and on the other hand, eight communication columns 10 accomplish the atress balanced at the eight horizontal directions of second access pipe 7, prevent that second access pipe 7 atress is uneven and appear the damage.
The left side of the guide ring 17 is provided with a vertical groove, and the height value of the guide ring 17 is smaller than the height value of the inner wall of the denitration box 12;
the vertical groove arranged on the left side of the guide ring 17 is used for supplying ammonia gas to be contained in the inner ring surface of the guide ring 17.
The working principle and the using flow of the utility model are as follows:
firstly, the fan 4 is started, the flue gas to be treated is sucked into the inner cavity of the desulfurizing tower 1 through the air inlet pipe 5 and the communicating pipe 2, upward positive pressure is generated in the desulfurizing tower 1, and the desulfurizing liquid (quicklime and CaCO) is externally connected through the second access pipe 7 3 Alkaline solution formed by the above components) is conveyed to the inside of the communicating column 10 by utilizing the middle rotary disk 9, sprayed downwards through the spray head 11 to cover the upward area of the flue gas, and S element in the flue gas is replaced after the flue gas fully reacts with the desulfurizing liquid, so that the desulfurizing purpose is achieved;
then, the flue gas subjected to desulfurization treatment continuously moves upwards, at the moment, ammonia gas is externally connected through the first access pipe 6 and fills the inner cavity of the denitration box 12, meanwhile, positive pressure of the inner cavity of the denitration box 12 is maintained, after the inner cavity of the denitration box 12 is filled with the ammonia gas, the ammonia gas starts to enter the inside of the accommodating column 14 along the through groove 15, at the moment, the flue gas which moves upwards enters the inner wall of the accommodating column 14 and collides with the ammonia gas, and the flue gas is fully dispersed through a single channel formed by a plurality of accommodating columns 14, so that the contact area with the ammonia gas is increased, the reaction rate is improved, meanwhile, the ammonia gas entering the inside of the accommodating column 14 along the through groove 15 under the positive pressure is firstly preempted at the front end of the flue gas and is positioned above the flue gas, and the rising rate of the flue gas is slowed down through the density and gravity of the ammonia gas, so that the denitration reaction contact time is increased, and the denitration is more thorough;
finally, the flue gas treated by the accommodating column 14 passes through the activated carbon adsorption layer 19 to adsorb out solid particles in the flue gas, and the solid particles are discharged along the air outlet pipe 3.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will appreciate that; the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (6)
1. The utility model provides a flue gas desulfurization denitrification facility, includes desulfurizing tower (1), outlet duct (3) are installed at the top of desulfurizing tower (1), fan (4) are installed through communicating pipe (2) in the left side of desulfurizing tower (1), the left side fixedly connected with intake pipe (5) of fan (4), its characterized in that: the middle part fixed mounting of desulfurizing tower (1) inner wall has second access pipe (7), the bottom fixedly connected with transfer dish (9) of second access pipe (7), the surface fixedly connected with intercommunication post (10) of transfer dish (9), the bottom fixedly connected with shower nozzle (11) of intercommunication post (10), the inner wall fixed mounting of desulfurizing tower (1) has denitration case (12) that are located second access pipe (7) top, through-hole (13) have all been seted up to the upper and lower both sides of denitration case (12), fixedly connected with holds post (14) between the upper and lower both sides of denitration case (12) inner wall, logical groove (15) have been seted up to the surface of holding post (14), the right side fixedly connected with first access pipe (6) of denitration case (12), the top of desulfurizing tower (1) inner wall is through solid fixed ring (18) fixed mounting active carbon adsorption layer (19).
2. The flue gas desulfurization and denitrification device according to claim 1, wherein: the outer surface fixed mounting of second access pipe (7) has stiffening ring (8), the surface of stiffening ring (8) and the inner wall fixed connection of desulfurizing tower (1), the right-hand member of second access pipe (7) runs through the inner wall of desulfurizing tower (1) right.
3. The flue gas desulfurization and denitrification device according to claim 1, wherein: connecting blocks (16) are fixedly connected to the front side and the rear side of the inner wall of the denitration box (12), and guide rings (17) are fixedly connected to the inner side faces of the connecting blocks (16).
4. The flue gas desulfurization and denitrification device according to claim 1, wherein: the accommodating column (14) is opposite to and communicated with the through hole (13), and the inner diameter value of the accommodating column (14) is equal to the diameter value of the through hole (13).
5. The flue gas desulfurization and denitrification device according to claim 1, wherein: the quantity of intercommunication post (10) is eight, eight intercommunication post (10) equiangular intercommunication sets up the surface at transfer (9), the quantity of shower nozzle (11) is twenty four, twenty four shower nozzle (11) divide equally into eight groups, eight groups shower nozzle (11) distribute respectively in the bottom of eight intercommunication posts (10), every group shower nozzle (11) all are equidistant distribution along the axial of intercommunication post (10).
6. A flue gas desulfurization and denitrification device according to claim 3, wherein: the vertical groove is formed in the left side of the guide ring (17), and the height value of the guide ring (17) is smaller than that of the inner wall of the denitration box (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223269612.XU CN218890375U (en) | 2022-12-07 | 2022-12-07 | Flue gas desulfurization and denitrification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223269612.XU CN218890375U (en) | 2022-12-07 | 2022-12-07 | Flue gas desulfurization and denitrification device |
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| Publication Number | Publication Date |
|---|---|
| CN218890375U true CN218890375U (en) | 2023-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223269612.XU Active CN218890375U (en) | 2022-12-07 | 2022-12-07 | Flue gas desulfurization and denitrification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117654107A (en) * | 2024-02-02 | 2024-03-08 | 弘润石化(潍坊)有限责任公司 | Liquefied gas MTBE extraction desulfurization equipment |
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2022
- 2022-12-07 CN CN202223269612.XU patent/CN218890375U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117654107A (en) * | 2024-02-02 | 2024-03-08 | 弘润石化(潍坊)有限责任公司 | Liquefied gas MTBE extraction desulfurization equipment |
| CN117654107B (en) * | 2024-02-02 | 2024-04-09 | 弘润石化(潍坊)有限责任公司 | Liquefied gas MTBE extraction desulfurization equipment |
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