CN115990398B - Aeration oxidation desulfurizing tower - Google Patents
Aeration oxidation desulfurizing tower Download PDFInfo
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- CN115990398B CN115990398B CN202310286123.5A CN202310286123A CN115990398B CN 115990398 B CN115990398 B CN 115990398B CN 202310286123 A CN202310286123 A CN 202310286123A CN 115990398 B CN115990398 B CN 115990398B
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The invention relates to the technical field of chemical industry and provides an aeration oxidation desulfurization tower, which comprises a tower body, a flue gas inlet pipe, a spray assembly, a desulfurization system and a framework, wherein the spray assembly comprises a first spray part, the first spray part comprises a central pipe and a spray valve, the desulfurization system comprises a driving part, a transmission chain, a ring gear and a conical screen, the driving part is connected with the ring gear through the transmission chain, meshing teeth are arranged on the surface of the ring gear, one end of the conical screen is provided with the transmission gear, the meshing teeth are in meshing connection with the transmission gear, the central pipe is fixedly connected with the other end of the conical screen, the spray valve is positioned in the conical screen, a packing layer is arranged in the conical screen, the framework comprises an upper framework and a lower framework, the upper framework is fixedly connected with the lower framework, the upper framework comprises a guide plate and a scraper, the scraper is connected with the upper surface of the guide plate, and the scraper contacts with the surface of the conical screen.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to an aeration oxidation desulfurization tower.
Background
When the desulfurizing tower is used for purifying the flue gas, the flue gas can absorb dust and toxic and harmful substances in the flue gas after being sprayed by the packing layer and the washing liquid, the washing liquid absorbs the dust and the toxic and harmful substances to form an absorption liquid, and under the general condition, the absorption liquid flows to the tower bottom after spraying the flue gas, and an aeration device or an oxidation tank is arranged outside the tower bottom to recycle the absorption liquid after being treated.
In the link of purifying flue gas by spraying a filler layer and a cleaning solution in the existing aeration oxidation desulfurization tower, the following problems often occur: (1) The washing liquid is generally sprayed directly into the desulfurizing tower, and the sprayed washing liquid quickly falls back to the bottom of the tower under the drive of gravity, so that the mixing of the flue gas and the washing liquid is insufficient; (2) Granular smoke dust in the smoke gas easily enters the filler layer, and although the granular substances can be filtered in advance by arranging a filter screen, the cleaning of the filtered granular substances is generally finished manually and regularly, and the method is complex and laborious.
Disclosure of Invention
In order to solve the problems, the invention provides the technical scheme that the aeration oxidation desulfurization tower comprises a tower body, a flue gas inlet pipe, a spray assembly, a desulfurization system and a framework, wherein the flue gas inlet pipe is connected to the outer side of the tower body, the top of the tower body is connected with the flue gas outlet pipe, the spray assembly comprises a first spray part, the first spray part comprises a central pipe and a spray valve, the spray valve is connected to the surface of the central pipe, and the framework is arranged on the inner side of the tower body;
the desulfurization system comprises a driving part, a transmission chain, a ring gear and a conical screen, wherein the driving part is connected with the ring gear through the transmission chain, meshing teeth are arranged on the surface of the ring gear, one end of the conical screen is provided with the transmission gear, the meshing teeth are in meshing connection with the transmission gear, the central tube is fixedly connected to the other end of the conical screen, the spray valve is positioned in the conical screen, and a filler layer is arranged in the conical screen;
the framework comprises an upper framework and a lower framework, the upper framework is fixedly connected with the lower framework, the upper framework comprises guide plates and scraping plates, the scraping plates are connected to the upper surfaces of the guide plates, the number of the conical net covers and the number of the guide plates are several, the conical net covers are distributed between two adjacent guide plates, and the scraping plates are in surface contact with the conical net covers.
As a further scheme of the invention, the upper framework further comprises an upper edge shell and a center shell, the guide plate is fixedly connected between the upper edge shell and the center shell, the guide plate is inclined from the center shell to one side of the upper edge shell, a guide hole is formed in the inner side of the upper edge shell at a position corresponding to the guide plate, the lower framework comprises a lower edge shell and a liquid discharge pipe, the liquid discharge pipe is connected below the lower edge shell, the upper edge shell and the lower edge shell are combined into a closed cavity, and the guide hole is communicated with the closed cavity.
As a further scheme of the invention, the ring gear and the transmission gear are both positioned in the closed cavity, the conical screen is connected with the transmission gear through a central shaft, and the central tube and the central shaft are respectively connected with the central shell and the upper edge shell.
As a further scheme of the invention, a scraping blade is connected below the transmission gear through a vertical rod, and the scraping blade is in contact with the inner wall of the lower edge shell.
As a further scheme of the invention, a first cavity and a second cavity are arranged below the tower body, the first cavity is positioned below the second cavity, and the liquid discharge pipe is communicated with the second cavity.
As a further scheme of the invention, the spray assembly comprises a liquid pump, a liquid inlet pipe, a liquid outlet pipe, a branch pipe, an inserting pipe and a second spray part, wherein the liquid inlet end of the liquid pump is connected with a first cavity through the liquid inlet pipe, the liquid outlet end of the liquid pump is connected with the liquid outlet pipe, the surface of the liquid outlet pipe is connected with the branch pipe and the second spray part, the branch pipe is connected with a central pipe through the inserting pipe, the inserting pipe is movably connected with the central pipe, the component composition in the second spray part is consistent with that of the first spray part, and the second spray part is positioned above the framework.
As a further scheme of the invention, the surface of the branch pipe is fixedly connected with a sealing plate, and the sealing plate is contacted with the lower part of the center shell.
The beneficial effects of the invention are as follows: (1) When the driving part drives the conical screen cover and the first spraying part to rotate, the atomized washing liquid sprayed by the spraying valve forms a dynamic atomized vortex in the rotating conical screen cover, and the rising flue gas can uniformly contact with the washing liquid and solid particles when entering the dynamic atomized vortex filled in the conical screen cover and the packing layer, so that the contact area of gas-liquid two phases is increased, and the removal effect and the removal efficiency of harmful substances in the flue gas are effectively improved;
(2) The conical screen can filter the granular smoke dust in the smoke, prevent that the granular smoke dust from getting into the filler layer, when the conical screen is rotatory towards the direction of scraper blade, the adhesion can be cleared up by the scraper blade at the granular smoke dust on conical screen surface, and the kinetic energy that the conical screen rotatory produced orders about the granular smoke dust along scraper blade flow direction guide plate, has effectively guaranteed the rate of passage of smoke gas and the purification efficiency of smoke gas.
Drawings
FIG. 1 is a front view of an aeration oxidation desulfurization tower according to an embodiment of the present invention.
FIG. 2 is a perspective view of a desulfurization system in accordance with an embodiment of the present invention.
Fig. 3 is an enlarged view of a portion of fig. 2 a in accordance with the present invention.
Fig. 4 is a cross-sectional view of a conical screen and a first spray portion in an embodiment of the invention.
Fig. 5 is a cross-sectional view of a skeleton in an embodiment of the invention.
Fig. 6 is a schematic diagram showing connection between a conical screen and a scraper in an embodiment of the present invention.
Fig. 7 is an enlarged view of a portion of b of fig. 5 in accordance with the present invention.
Fig. 8 is a schematic diagram of connection between a conical mesh enclosure and an adapter in an embodiment of the invention.
FIG. 9 is a schematic diagram illustrating the separation of the desulfurization system, framework, and manifold in accordance with an embodiment of the present invention.
FIG. 10 is an assembly view of a desulfurization system, framework, and manifold in accordance with an embodiment of the present invention.
FIG. 11 is a top view of a desulfurization system and framework in an embodiment of the present invention.
FIG. 12 is a bottom view of the desulfurization system and framework in an embodiment of the present invention.
Reference numerals: the device comprises a 1-tower body, a 11-first cavity, a 12-second cavity, a 13-flue gas outlet pipe, a 2-flue gas inlet pipe, a 3-spraying component, a 31-liquid pump, a 32-liquid inlet pipe, a 33-liquid outlet pipe, a 34-branch pipe, a 341-plug pipe, a 342-sealing plate, a 35-first spraying part, a 351-central pipe, a 352-spraying valve, a 36-second spraying part, a 4-desulfurization system, a 41-driving part, a 42-transmission chain, a 43-ring gear, a 431-meshing gear, a 432-vertical rod, 433-scraping blade, a 44-conical screen, a 441-central shaft, a 442-transmission gear, 443-packing layer, a 5-framework, a 51-upper framework, a 511-upper edge shell, a 512-guide plate, a 513-central shell, a 514-scraping blade, a 515-guide hole, a 52-lower framework, a 521-lower edge shell, a 522-liquid outlet pipe and a 6-absorption liquid purification system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
Referring to fig. 1 to 10, an aeration oxidation desulfurization tower provided by the embodiment of the invention comprises a tower body 1, a flue gas inlet pipe 2, a spray assembly 3, a desulfurization system 4 and a framework 5, wherein the flue gas inlet pipe 2 is connected to the outer side of the tower body 1, the top of the tower body 1 is connected with a flue gas outlet pipe 13, the spray assembly 3 comprises a first spray part 35, the first spray part 35 comprises a central pipe 351 and a spray valve 352, the spray valve 352 is connected to the surface of the central pipe 351, and the framework 5 is installed on the inner side of the tower body 1;
the desulfurization system 4 comprises a driving part 41, a transmission chain 42, a ring gear 43 and a conical screen 44, wherein the driving part 41 is connected with the ring gear 43 through the transmission chain 42, meshing teeth 431 are arranged on the surface of the ring gear 43, a transmission gear 442 is arranged at one end of the conical screen 44, the meshing teeth 431 are in meshing connection with the transmission gear 442, a central pipe 351 is fixedly connected to the other end of the conical screen 44, the spray valve 352 is positioned in the conical screen 44, a packing layer 443 is arranged in the conical screen 44, the driving part 41 is arranged on the outer side of the tower body 1, the driving part 41 comprises a driving motor and a driving gear, and the driving gear is meshed with the transmission chain 42;
the framework 5 comprises an upper framework 51 and a lower framework 52, the upper framework 51 is fixedly connected with the lower framework 52, the upper framework 51 comprises a guide plate 512 and a scraping plate 514, the scraping plate 514 is connected to the upper surface of the guide plate 512, the number of the conical net covers 44 and the number of the guide plates 512 are all a plurality, the conical net covers 44 are distributed between two adjacent guide plates 512, the scraping plate 514 is in surface contact with the conical net covers 44, and the transmission chain 42 penetrates through the tower body 1 and the upper framework 51.
In the embodiment of the invention, when the driving part 41 drives the conical screen cover 44 and the first spraying part 35 to rotate through the transmission chain 42, the ring gear 43 and the transmission gear 442, the atomized cleaning solution sprayed by the spraying valve 352 forms a dynamic atomized vortex in the rotating conical screen cover 44, and when the flue gas passes through the rotating conical screen cover 44, on one hand, the conical screen cover 44 can filter out the granular smoke dust in the flue gas and prevent the granular smoke dust from entering the filler layer 443, and on the other hand, the rising flue gas can uniformly contact with the cleaning solution and solid particles when entering the dynamic atomized vortex filled in the conical screen cover 44 and the filler layer 443, so that the contact area of gas-liquid two phases is increased, and the removal effect and the removal efficiency of harmful substances in the flue gas are effectively improved;
in addition, when the conical screen 44 rotates towards the scraper 514, the granular smoke dust adhered to the surface of the conical screen 44 can be cleaned by the scraper 514, and the kinetic energy generated by the rotation of the conical screen 44 drives the granular smoke dust to flow along the scraper 514 to the guide plate 512, so that the automatic cleaning and anti-blocking effects are achieved, and the passing rate of the smoke gas and the purification efficiency of the smoke gas can be effectively ensured.
Referring to fig. 1 to 9, in an embodiment of the present invention, a first cavity 11 and a second cavity 12 are disposed below the tower body 1, the first cavity 11 is located below the second cavity 12, and the drain pipe 522 is in communication with the second cavity 12.
Further, the spray assembly 3 comprises a liquid pump 31, a liquid inlet pipe 32, a liquid outlet pipe 33, a branch pipe 34, an inserting pipe 341 and a second spray part 36, wherein a liquid inlet end of the liquid pump 31 is connected with the first cavity 11 through the liquid inlet pipe 32, a liquid outlet end of the liquid pump 31 is connected with the liquid outlet pipe 33, the surface of the liquid outlet pipe 33 is connected with the branch pipe 34 and the second spray part 36, the branch pipe 34 is connected with the central pipe 351 through the inserting pipe 341, the inserting pipe 341 is movably connected with the central pipe 351, the components inside the second spray part 36 are identical to the first spray part 35, and the second spray part 36 is positioned above the framework 5.
Further, a sealing plate 342 is fixedly connected to the surface of the branch pipe 34, and the sealing plate 342 is in contact with the lower portion of the central casing 513 for sealing off the central casing 513.
Further, an absorption liquid purifying system 6 is disposed between the first cavity 11 and the second cavity 12, impurities in the absorption liquid are removed by the absorption liquid purifying system 6 mainly through a physical and chemical method, and chemical properties of the absorption liquid are changed, so that the absorption liquid is reduced into a washing liquid, and detailed working process and composition modes are omitted.
In the embodiment of the invention, after the flue gas inlet pipe 2 enters the tower body 1 and is subjected to desulfurization purification through the spray assembly 3 and the desulfurization system 4, the flue gas is finally discharged from the flue gas outlet pipe 13, the first cavity 11 stores washing liquid, the absorbing liquid after the flue gas is washed by the spray assembly 3 flows into the second cavity 12, the absorbing liquid purifying system 6 can purify the absorbing liquid in the second cavity 12, the purified absorbing liquid can be used as washing liquid to be discharged into the first cavity 11 again, and due to the sealing of the sealing plate 342 below the central shell 513, the gap between the conical screen 44 and the guide plate 512 and the gap between the framework 5 and the inner wall of the tower body 1 are smaller, so that the rising flue gas can enter the conical screen 44 to the greatest extent, in addition, the size of the conical screen 44 is as small as possible in design, so that the quantity of the conical screen 44 distributed in the framework 5 is as much as possible, the rising efficiency of the flue gas through the conical screen 44 can be greatly improved, and even if the flue gas can be sprayed out of the second spraying screen 36 through the gap between the conical screen 44 and the guide plate 512 and the gap between the framework 5 and the inner wall of the tower body 1.
Referring to fig. 1 to 12, in an embodiment of the present invention, the upper frame 51 further includes an upper edge housing 511 and a central housing 513, the baffle 512 is fixedly connected between the upper edge housing 511 and the central housing 513, the baffle 512 is inclined from the central housing 513 toward one side of the upper edge housing 511, a diversion hole 515 is formed at a position corresponding to the baffle 512 inside the upper edge housing 511, the lower frame 52 includes a lower edge housing 521 and a liquid discharge pipe 522, the liquid discharge pipe 522 is connected below the lower edge housing 521, the upper edge housing 511 and the lower edge housing 521 are combined into a closed cavity, and the diversion hole 515 is communicated with the closed cavity.
Further, the ring gear 43 and the driving gear 442 are both disposed in the closed cavity, the cone cover 44 is connected to the driving gear 442 through the central shaft 441, and the central tube 351 and the central shaft 441 are respectively connected to the central housing 513 and the upper edge housing 511.
Further, a wiper 433 is connected to the lower portion of the driving gear 442 through the upright post 432, and the wiper 433 contacts with the inner wall of the lower edge housing 521.
In the embodiment of the present invention, the mist washing liquid sprayed out of the second spraying portion 36 falls down, on one hand, the outer surface of the conical screen 44 can be washed, and the cleaning of the scraper 514 is matched, so that the granular smoke dust adhered to the outer surface of the conical screen 44 can be effectively removed, on the other hand, the falling absorption liquid falls down on the surfaces of the deflector 512 and the scraper 514, the flowing absorption liquid can drive the cleaned granular smoke dust to quickly pass through the deflector 512 and flow into the closed cavity along the inclined deflector 515, at this time, the rotating ring gear 43 cleans the mixture of the absorption liquid and the granular smoke dust entering the closed cavity into the liquid discharge pipe 522 through the scraper 433, and on the premise of ensuring the overall tightness of the framework 5, the cleaned impurities and the absorption liquid can be automatically discharged from the liquid discharge pipe 522 alone.
Working principle: firstly, the driving part 41 is started, the driving part 41 drives the ring gear 43 to rotate through the transmission chain 42, the rotating ring gear 43 drives the conical screen 44 and the first spraying part 35 to rotate through the meshing teeth 431 and the transmission gear 442, then the liquid pump 31 is started, the liquid pump 31 is used for conveying the washing liquid to the first spraying part 35 and the second spraying part 36, the spray valves 352 in the first spraying part 35 and the second spraying part 36 spray mist washing liquid, when the flue gas passes through the rotating conical screen 44, the flue gas can uniformly contact with the washing liquid and solid particles, meanwhile, the granular smoke dust adhered to the surface of the conical screen 44 can be cleaned by the scraping plate 514, kinetic energy generated by the rotation of the conical screen 44 drives the granular smoke dust to flow to the guide plate 512 along the scraping plate 514, the mist washing liquid sprayed out of the second spraying part 36 is used for carrying out secondary washing on the flue gas passing through the desulfurization system 4, the falling absorption liquid falls on the surfaces of the guide plate 512 and the scraping plate 514, the flowing absorption liquid can drive the cleaned granular smoke dust to enter the airtight cavity 515 along the inclined guide plate 512, the fast speed is enabled to enter the airtight cavity 515 through the guide hole, the rotating ring gear 43 enters the sealing cavity 522 through the scraping plate 433 and finally enters the liquid drain 522 along the exhaust pipe 522, and finally the exhaust pipe 522 is cleaned.
It will be apparent to those skilled in the art that although several embodiments and examples of the present invention have been described, these embodiments and examples are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other modes, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and their equivalents.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (1)
1. The aeration oxidation desulfurization tower comprises a tower body, a flue gas inlet pipe, a spray assembly, a desulfurization system and a framework, and is characterized in that the flue gas inlet pipe is connected to the outer side of the tower body, the top of the tower body is connected with the flue gas outlet pipe, the spray assembly comprises a first spray part, the first spray part comprises a central pipe and a spray valve, the spray valve is connected to the surface of the central pipe, and the framework is installed on the inner side of the tower body;
the desulfurization system comprises a driving part, a transmission chain, a ring gear and a conical screen, wherein the driving part is connected with the ring gear through the transmission chain, meshing teeth are arranged on the surface of the ring gear, one end of the conical screen is provided with the transmission gear, the meshing teeth are in meshing connection with the transmission gear, the central tube is fixedly connected to the other end of the conical screen, the spray valve is positioned in the conical screen, and a filler layer is arranged in the conical screen;
the framework comprises an upper framework and a lower framework, the upper framework is fixedly connected with the lower framework, the upper framework comprises guide plates and scraping plates, the scraping plates are connected to the upper surfaces of the guide plates, the number of the conical mesh covers and the number of the guide plates are several, the conical mesh covers are distributed between two adjacent guide plates, and the scraping plates are in surface contact with the conical mesh covers;
the upper framework further comprises an upper edge shell and a center shell, the guide plate is fixedly connected between the upper edge shell and the center shell, the guide plate is inclined from the center shell to one side of the upper edge shell, a guide hole is formed in the inner side of the upper edge shell and corresponds to the guide plate, the lower framework comprises a lower edge shell and a liquid discharge pipe, the liquid discharge pipe is connected below the lower edge shell, the upper edge shell and the lower edge shell are combined to form a closed cavity, and the guide hole is communicated with the closed cavity;
the ring gear and the transmission gear are both positioned in the closed cavity, the conical screen is connected with the transmission gear through a central shaft, and the central tube and the central shaft are respectively connected with the central shell and the upper edge shell;
the lower part of the transmission gear is connected with a scraping blade through a vertical rod, and the scraping blade is contacted with the inner wall of the lower edge shell;
a first cavity and a second cavity are arranged below the tower body, the first cavity is positioned below the second cavity, and the liquid discharge pipe is communicated with the second cavity;
the spray assembly comprises a liquid pump, a liquid inlet pipe, a liquid outlet pipe, a branch pipe, an inserting pipe and a second spray part, wherein the liquid inlet end of the liquid pump is connected with a first cavity through the liquid inlet pipe, the liquid outlet end of the liquid pump is connected with the liquid outlet pipe, the surface of the liquid outlet pipe is connected with the branch pipe and the second spray part, the branch pipe is connected with a central pipe through the inserting pipe, the inserting pipe is movably connected with the central pipe, the components in the second spray part are consistent with the first spray part, and the second spray part is positioned above the framework;
and the surface of the branch pipe is fixedly connected with a sealing plate, and the sealing plate is contacted with the lower part of the center shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310286123.5A CN115990398B (en) | 2023-03-23 | 2023-03-23 | Aeration oxidation desulfurizing tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310286123.5A CN115990398B (en) | 2023-03-23 | 2023-03-23 | Aeration oxidation desulfurizing tower |
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| CN115990398A CN115990398A (en) | 2023-04-21 |
| CN115990398B true CN115990398B (en) | 2023-07-07 |
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| CN202310286123.5A Active CN115990398B (en) | 2023-03-23 | 2023-03-23 | Aeration oxidation desulfurizing tower |
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| CN116966738A (en) * | 2023-09-13 | 2023-10-31 | 唐山港陆钢铁有限公司 | Flue gas desulfurization dust removal device and process of steel rolling heating furnace |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205903730U (en) * | 2016-06-02 | 2017-01-25 | 富鼎电子科技(嘉善)有限公司 | Waste gas treatment device |
| CN207429985U (en) * | 2017-09-30 | 2018-06-01 | 铜陵华兴精细化工股份有限公司 | A kind of spray column with chemical industry tail gas processing unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214881309U (en) * | 2021-01-29 | 2021-11-26 | 辽宁勃瑞环保设备制造有限公司 | Gas desulfurizing tower |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205903730U (en) * | 2016-06-02 | 2017-01-25 | 富鼎电子科技(嘉善)有限公司 | Waste gas treatment device |
| CN207429985U (en) * | 2017-09-30 | 2018-06-01 | 铜陵华兴精细化工股份有限公司 | A kind of spray column with chemical industry tail gas processing unit |
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