CN117899650A - Environment-friendly boiler flue gas purification device - Google Patents
Environment-friendly boiler flue gas purification device Download PDFInfo
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- CN117899650A CN117899650A CN202410316104.7A CN202410316104A CN117899650A CN 117899650 A CN117899650 A CN 117899650A CN 202410316104 A CN202410316104 A CN 202410316104A CN 117899650 A CN117899650 A CN 117899650A
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- Prior art keywords
- flue gas
- cylinder
- barrel
- rotating
- cylinder body
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 239000003546 flue gas Substances 0.000 title claims abstract description 79
- 238000000746 purification Methods 0.000 title claims abstract description 15
- 239000007921 spray Substances 0.000 claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 39
- 238000005507 spraying Methods 0.000 claims abstract description 27
- 238000007790 scraping Methods 0.000 claims abstract description 16
- 238000009423 ventilation Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000000779 smoke Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 42
- 239000007924 injection Substances 0.000 claims description 42
- 230000007613 environmental effect Effects 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims 5
- 238000006243 chemical reaction Methods 0.000 abstract description 21
- 239000007789 gas Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 20
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 19
- 235000017491 Bambusa tulda Nutrition 0.000 description 19
- 241001330002 Bambuseae Species 0.000 description 19
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 19
- 239000011425 bamboo Substances 0.000 description 19
- 238000006477 desulfuration reaction Methods 0.000 description 19
- 230000023556 desulfurization Effects 0.000 description 19
- 239000000126 substance Substances 0.000 description 16
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 14
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 14
- 238000012423 maintenance Methods 0.000 description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 description 7
- 239000000428 dust Substances 0.000 description 7
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 6
- 229910052815 sulfur oxide Inorganic materials 0.000 description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- 206010024769 Local reaction Diseases 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The application provides an environment-friendly boiler flue gas purification device, which relates to the technical field of flue gas purification and comprises a gas outlet and a gas inlet, wherein the gas inlet is used for introducing flue gas into a cylinder; the rotary cylinder is provided with a plurality of ventilation holes for passing through the rotary cylinder when the smoke moves upwards; the spray pipe is used for injecting lime water into the barrel; the spraying scraper is fixedly connected to the inner side wall of the barrel and arranged on the upper surface of the spraying pipe, and is used for scraping liquid on the upper surface of the spraying pipe; the demister is used for capturing fog particles entrained in the flue gas; the rotating mechanism is arranged on the central axis of the cylinder body and is used for driving the spray pipe to rotate; the spraying mechanism is arranged at the bottom of the cylinder body and is used for spraying water on the rotating cylinder. The application can not only reduce the blocking probability caused by the surface of the spray pipe, but also spread lime water, so that the reaction rate of lime water and flue gas is accelerated.
Description
Technical Field
The application relates to the technical field of flue gas purification, in particular to an environment-friendly boiler flue gas purification device.
Background
The coal is provided with more sulfide, nitrifier and other substances after being mined, and the sulfide, nitrifier and other substances can flow along with the smoke generated by the combustion of the coal in the combustion process, so that the sulfide, nitrifier and other substances are discharged into the air, the sulfide, nitrifier and other substances are diffused, and the living environment of surrounding masses is influenced.
Referring to the Chinese patent document with the publication number of CN115845601B and the theme name of an industrial boiler flue gas desulfurization and denitrification energy-saving environment-friendly device, the patent adsorbs and filters dust through an electrostatic dust collection assembly and a cloth bag dust collection assembly, and enables the flue gas to be contacted with a denitrification catalyst and a desulfurizing agent through a purification mechanism, so that the purification mechanism carries out denitration and desulfurization treatment on the flue gas.
When the purification mechanism is used for denitration and desulfurization of flue gas, the spraying pipe on the purification mechanism is started and stopped, limestone liquid existing on the surface of the spraying pipe after the spraying pipe is closed is easy to react with residual flue gas in the machine, so that sediment is generated on the surface of the spraying pipe, and the sediment is accumulated to cause the surface blockage of the spraying pipe.
Disclosure of Invention
In view of the above, the application provides an environment-friendly boiler flue gas purification device which can not only reduce the probability of blocking on the surface of a spray pipe, but also spread lime water so as to accelerate the reaction rate of the lime water and flue gas.
The application provides an environment-friendly boiler flue gas purification device, which adopts the following technical scheme that: the air outlet is formed in the top of the cylinder, and an air inlet is formed in the middle of the cylinder and is used for introducing flue gas into the cylinder; the rotary cylinder is rotationally connected in the cylinder body and arranged at one side of the air inlet, and a plurality of air holes are formed in the rotary cylinder and are used for passing through the rotary cylinder when the flue gas moves upwards; the spray pipe is rotationally connected in the cylinder body and is used for injecting lime water into the cylinder body; the spraying scraper is fixedly connected to the inner side wall of the barrel and arranged on the upper surface of the spraying pipe, and is used for scraping liquid on the upper surface of the spraying pipe; the demister is in sliding connection with the inside of the cylinder body and is used for capturing fog particles and slurry drops entrained in the flue gas; the rotating mechanism is arranged on the central axis of the cylinder body and is used for driving the spray pipe to rotate; the spraying mechanism is arranged at the bottom of the cylinder body and is used for spraying water on the rotating cylinder.
Through adopting above-mentioned technical scheme, place the barrel on the horizontal plane, let in the flue gas to the air inlet, make flue gas get into inside the barrel, the flue gas gets into in the rotation section of thick bamboo, and remove to the barrel top through the bleeder vent in the rotation section of thick bamboo, the shower lets in lime water in the barrel, and start slewing mechanism, slewing mechanism drives the shower and rotates, lime water contacts with the flue gas, denitration desulfurization is carried out to the flue gas, substances such as calcium sulfate appear after the lime water carries out denitration desulfurization, slewing mechanism drives the shower and rotates, the spray scraper blade scrapes the shower upper surface, make substances such as calcium carbonate drop into the rotation section of thick bamboo, the rotation section of thick bamboo rotates and drives substances such as calcium carbonate and flow out, the flue gas continues to rise, the defroster shakes from top to bottom, catch the fog grain that smugglies secretly in the flue gas, start injection mechanism, injection mechanism hits the remaining substances of rotation section of thick bamboo, make substances such as calcium carbonate drop.
When the flue gas is subjected to denitration and desulfurization treatment, calcium sulfate is a common solid mineral, so that a spray pipe is easy to block, a spray scraper scrapes a product on the spray pipe, the probability that the flue gas and lime water do not react due to the blockage of the product is reduced, the treatment efficiency can be improved, and the effectiveness of waste gas treatment is ensured. Because the spray pipe is blocked by the product for a long time, the pipeline is corroded and damaged, the product on the spray pipe is scraped, the blockage caused by the product is reduced, the service lives of the spray pipe and other equipment can be prolonged, and the maintenance cost is reduced.
Optionally, the first material receiving mouth has been seted up to a rotation section of thick bamboo and barrel junction, just first material receiving mouth is provided with scrapes the movable plate with barrel junction, scrape the movable plate and be used for scraping the impurity of rotation section of thick bamboo lateral wall department, a rotation section of thick bamboo is kept away from with barrel junction the second material receiving mouth has been seted up to air inlet one side, the second material receiving mouth is used for flowing out the impurity that is located rotation section of thick bamboo inside wall department.
Through adopting above-mentioned technical scheme, flue gas and lime water reaction, the resultant after the reaction passes through the drive that lime water falls, make the resultant fall to the rotary drum outer wall, rotary drum rotates and drives the resultant and remove, drive the resultant and remove to first receiving port department, the scraping plate of first receiving port department scrapes the rotary drum outer wall, make the resultant of rotary drum outer wall drop to first receiving port department, the resultant that falls into rotary drum inside passes through the striking of injection mechanism, make the resultant remove to second receiving port department.
The setting of rotating the section of thick bamboo has weakened the probability that causes the inside jam of barrel owing to the resultant deposit on the one hand, has strengthened the inside reaction efficiency of barrel, on the other hand through the setting of first material receiving mouth and second material receiving mouth, has reduced the cost when maintaining equipment, simultaneously through the clearance to the resultant, has reduced the maintenance frequency to the barrel, has reduced the cost of clearing up and maintaining the barrel, has improved lime wash and the reliability and the stability of flue gas reaction.
Optionally, the rotating mechanism includes: the output shaft of the rotating motor is fixedly connected with a first rotating gear; the second rotating gear is rotationally connected to the central axis of the cylinder body, and is arranged above the cylinder body, and a rotating rod is fixedly connected to the second rotating gear; the first bevel gear is sleeved on the rotating rod and fixedly connected with the spray pipe, and the first bevel gear is used for driving the spray pipe to rotate; the second bevel gear is rotatably connected to the side wall of the rotating rod and meshed with the first bevel gear; and the third bevel gear is fixedly connected to the upper position of the spray pipe and meshed with the second bevel gear, and the third bevel gear is used for driving the adjacent spray pipes to rotate.
Through adopting above-mentioned technical scheme, start rotating the motor, rotate the motor and drive first rotation gear and rotate, first rotation gear rotates and drives the second rotation gear and rotate, the second rotation gear rotates and drives the dwang and rotate, the dwang drives the shower and rotate, lime water in the shower is inside the barrel to be spread, first bevel gear drives the second bevel gear and rotates, the second bevel gear drives the third bevel gear and rotates, the third bevel gear rotates and drives adjacent shower and rotate.
The rotating mechanism drives the spray pipe to rotate, so that lime water can be more uniformly distributed inside the barrel, sulfur oxides in lime water and flue gas can be fully contacted and reacted, the reaction efficiency of desulfurization and denitrification of lime water and flue gas is improved, meanwhile, the rotating mechanism drives the spray pipe to rotate, the probability of blockage caused by excessive accumulation of products in a part of areas can be reduced, meanwhile, the occurrence of insufficient local reaction or excessive reaction is reduced, the stability of the system is improved, and the long-term operation and maintenance of equipment are facilitated.
Optionally, the breather plate has been seted up to rotary cylinder intermediate position, first air vent has been seted up on the breather plate, breather plate below sliding connection has the baffle, the second air vent has been seted up on the baffle, baffle and barrel junction are provided with the slip cylinder, the slip cylinder is used for promoting the baffle and slides.
Through adopting above-mentioned technical scheme, when need stopping the reaction, start the slip cylinder, make the slip cylinder drive the baffle and remove, make first air vent and second air vent dislocation, make the baffle separate first air vent, reduced because the flue gas that exists in the barrel last with lime water reaction, cause the condition of jam on the shower.
Optionally, the injection mechanism includes: the fixed disc is fixedly connected to the bottom of the cylinder body, and a spraying cavity is arranged at the joint of the fixed disc and the cylinder body; the injection pipe is fixedly connected to the fixed disc and is communicated with the injection cavity; the rotating block is rotationally connected to the fixed disc, the inner side wall of the fixed disc is connected with the injection plug in a sliding manner, and the rotating block is used for pushing the injection plug to move inwards; and the reset spring is fixedly connected with the injection plug and is used for driving the injection plug to reset.
Through adopting above-mentioned technical scheme, the rotating block rotates, when the rotating block moved to the injection plug position, promotes the injection plug and inwards moves, and the injection plug inwards moves and makes the liquid in the injection chamber strike the rotating cylinder surface through the injection pipe, clears up the rotating cylinder surface, after the rotating block moved the injection plug position, reset spring promotes the injection plug and resets.
Optionally, the defroster cover is established on the dwang, the dwang with the defroster junction is provided with the arc, fixedly connected with sliding spring on the dwang, sliding spring cover is established on the dwang.
Through adopting above-mentioned technical scheme, the dwang rotates, drives the arc and rotates, and the arc rotates and drives the defroster and swing from top to bottom, and sliding spring drives the defroster and moves down after the defroster moves up. The surface area of defroster and flue gas contact is improved through the up-and-down swing, makes the area of contact of sulphur oxide in lime wash and the flue gas increase, improves the probability of SOx/NOx control, and the while up-and-down swing can make the dust and the particulate matter on defroster surface more easily clear away, reduces defroster dust deposit's possibility, keeps defroster efficiency and performance.
In summary, compared with the prior art, the application has at least one of the following beneficial technical effects:
1. When the flue gas is subjected to denitration and desulfurization treatment, calcium sulfate is a common solid mineral, so that a spray pipe is easy to block, a spray scraper scrapes a product on the spray pipe, the probability that the flue gas and lime water do not react due to the blockage of the product is reduced, the treatment efficiency can be improved, and the effectiveness of waste gas treatment is ensured. Because the spray pipe is blocked by the product for a long time, the pipeline is corroded and damaged, the product on the spray pipe is scraped, the blockage caused by the product is reduced, the service lives of the spray pipe and other equipment can be prolonged, and the maintenance cost is reduced.
2. The setting of rotating the section of thick bamboo has weakened the probability that causes the inside jam of barrel owing to the resultant deposit on the one hand, has strengthened the inside reaction efficiency of barrel, on the other hand through the setting of first material receiving mouth and second material receiving mouth, has reduced the cost when maintaining equipment, simultaneously through the clearance to the resultant, has reduced the maintenance frequency to the barrel, has reduced the cost of clearing up and maintaining the barrel, has improved lime wash and the reliability and the stability of flue gas reaction.
3. The rotating mechanism drives the spray pipe to rotate, so that lime water can be more uniformly distributed inside the barrel, sulfur oxides in lime water and flue gas can be fully contacted and reacted, the reaction efficiency of desulfurization and denitrification of lime water and flue gas is improved, meanwhile, the rotating mechanism drives the spray pipe to rotate, the probability of blockage caused by excessive accumulation of products in a part of areas can be reduced, meanwhile, the occurrence of insufficient local reaction or excessive reaction is reduced, the stability of the system is improved, and the long-term operation and maintenance of equipment are facilitated.
Drawings
FIG. 1 is a schematic view of the structure of an environmental protection boiler flue gas purifying device according to the present embodiment;
FIG. 2 is a partial cross-sectional view showing the inside of the cylinder according to the present embodiment;
Fig. 3 is a schematic view showing the structure of the rotary drum according to the present embodiment;
fig. 4 is a schematic diagram showing the structure of the ejection mechanism according to the present embodiment;
fig. 5 is a schematic structural view showing a rotation mechanism according to the present embodiment;
FIG. 6 is a schematic view showing the structure of a baffle plate according to the present embodiment;
fig. 7 is a schematic view showing the structure of the baffle plate and the ventilation plate in this embodiment.
Reference numerals illustrate: 1. a cylinder; 11. an air outlet; 12. an air inlet; 2. a rotating cylinder; 21. ventilation holes; 22. a ventilation plate; 23. a first vent hole; 24. a baffle plate; 25. a second vent hole; 26. a sliding cylinder; 3. a shower pipe; 31. a spray scraper; 4. a demister; 5. a rotating mechanism; 51. a rotating motor; 52. a first rotating gear; 53. a second rotating gear; 54. a rotating lever; 55. a first bevel gear; 56. a second bevel gear; 57. a third bevel gear; 58. an arc-shaped plate; 59. a sliding spring; 6. a spraying mechanism; 61. a fixed plate; 62. a spray chamber; 63. a jet pipe; 64. a rotating block; 65. a spray plug; 66. a return spring; 7. a first material receiving port; 71. a scraping plate; 72. and a second material receiving port.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to fig. 1 to 6 of the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, embodiments of the application. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the application, fall within the scope of protection of the application.
Referring to fig. 1, 2 and 4, this embodiment provides an environmental protection boiler flue gas purification device, including, barrel 1 erects on the horizontal plane, and gas outlet 11 has been seted up on the barrel 1 on the top, and gas inlet 12 has been seted up to barrel 1 middle-end, and gas inlet 12 is used for letting in the flue gas to barrel 1 inside, and gas outlet 11 is used for letting out the flue gas through desulfurization denitration, and barrel 1 internal rotation is connected with a rotary drum 2, and rotary drum 2 opening sets up towards barrel 1 lateral wall, has seted up a plurality of bleeder vents 21 on the rotary drum 2, and bleeder vent 21 is used for through rotary drum 2 when the flue gas upwards moves. The barrel 1 is rotationally connected with a spray pipe 3, the spray pipe 3 is used for injecting lime water into the barrel 1, a spray scraper 31 is arranged on the barrel 1 and positioned on the upper surface of the spray pipe 3, the spray scraper 31 is fixedly connected with the inner side wall of the barrel 1, and the spray scraper 31 is used for scraping liquid on the upper surface of the spray pipe 3. The interior sliding connection of barrel 1 has defroster 4, and defroster 4 is arranged in catching the fog grain that smuggles secretly in the flue gas. A rotating mechanism 5 is arranged on the central axis of the cylinder body 1, the rotating mechanism 5 is used for driving the spray pipe 3 to rotate, an injection mechanism 6 is arranged at the bottom of the cylinder body 1, and the injection mechanism 6 is used for injecting water onto the rotating cylinder 2.
Placing barrel 1 on the horizontal plane, let in the flue gas to air inlet 12, make flue gas get into barrel 1 inside, the flue gas gets into in rotating cylinder 2, and remove to barrel 1 top through bleeder vent 21 in rotating cylinder 2, spray pipe 3 lets in lime water in barrel 1, and start slewing mechanism 5, slewing mechanism 5 drives spray pipe 3 and rotates, lime water contacts with the flue gas, denitration desulfurization is carried out to the flue gas, lime water denitration desulfurization appears substances such as calcium sulfate after the desulfurization, slewing mechanism 5 drives spray scraper 31 and rotates, spray scraper 31 scrapes the upper surface of spray pipe 3, make substances such as calcium carbonate drop into rotating cylinder 2, rotating cylinder 2 rotates and drives substances such as calcium carbonate to flow, the flue gas continues to rise, the mist particle that smugglies in the flue gas is caught from top to bottom, start injection mechanism 6, injection mechanism 6 hits the substances that remain in rotating cylinder 2, make substances such as calcium carbonate drop.
When the flue gas is subjected to denitration and desulfurization treatment, calcium sulfate is a common solid mineral, so that the spray pipe 3 is easy to block, the spray scraper 31 scrapes the products on the spray pipe 3, the condition that the flue gas and lime water are not reacted due to the blockage of the products is reduced, meanwhile, the treatment efficiency can be improved due to the reduction of the blockage of the calcium sulfate, and the effectiveness of waste gas treatment is ensured. Because the spray pipe 3 is blocked by the product for a long time and can cause pipeline corrosion and damage, the product on the spray pipe 3 is scraped, the blockage of the product is reduced, the service lives of the spray pipe 3 and other equipment can be prolonged, and the maintenance cost is reduced.
Referring to fig. 3, a first material receiving opening 7 is formed at the connection between the rotary cylinder 2 and the cylinder 1, a scraping plate 71 is arranged at the connection between the first material receiving opening 7 and the cylinder 1, the scraping plate 71 is used for scraping impurities at the outer side wall of the rotary cylinder 2, a second material receiving opening 72 is formed at the connection between the rotary cylinder 2 and the cylinder 1 and away from the air inlet 12, and the second material receiving opening 72 is used for flowing out impurities at the inner side wall of the rotary cylinder 2.
The flue gas reacts with lime water, the resultant after the reaction is driven by the lime water falling, the resultant falls to the outer wall of the rotary cylinder 2, the rotary cylinder 2 rotates to drive the resultant to move, the resultant is driven to move to the first material receiving opening 7, the scraping plate 71 at the first material receiving opening 7 scrapes the outer side wall of the rotary cylinder 2, the resultant on the outer side wall of the rotary cylinder 2 falls to the first material receiving opening 7, the resultant falling into the rotary cylinder 2 is shot by the injection mechanism 6, and the resultant moves to the second material receiving opening 72.
The setting of rotating cylinder 2 has weakened the probability that the inside jam of barrel 1 caused by the product deposit on the one hand, has strengthened the inside reaction's of barrel 1 efficiency, on the other hand through the setting of first material receiving port 7 and second material receiving port 72, has reduced the cost when maintaining equipment, simultaneously through the clearance to the product, has reduced the maintenance frequency to barrel 1, has reduced the cost of clearing up and maintaining barrel 1, has improved lime wash and flue gas reaction's reliability and stability.
Referring to fig. 1 and 5, the rotation mechanism 5 includes a rotation motor 51 fixedly connected above the cylinder 1, a first rotation gear 52 fixedly connected to an output shaft of the rotation motor 51, a second rotation gear 53 rotatably connected to a central axis of the cylinder 1, the second rotation gear 53 meshed with the first rotation gear 52, a rotation rod 54 fixedly connected to the second rotation gear 53 toward the inside of the cylinder 1, a first bevel gear 55 sleeved on the rotation rod 54, the first bevel gear 55 fixedly connected to the spray pipe 3, the first bevel gear 55 for driving the spray pipe 3 to rotate, a second bevel gear 56 rotatably connected to a side wall of the rotation rod 54, the second bevel gear 56 meshed with the first bevel gear 55, a third bevel gear 57 meshed with one end of the second bevel gear 56 far from the first bevel gear 55, the third bevel gear 57 fixedly connected to a position above the spray pipe 3, and the third bevel gear 57 for driving the adjacent spray pipe 3 to rotate.
The rotating motor 51 is started, the rotating motor 51 drives the first rotating gear 52 to rotate, the first rotating gear 52 rotates to drive the second rotating gear 53 to rotate, the second rotating gear 53 rotates to drive the rotating rod 54 to rotate, the rotating rod 54 drives the spray pipe 3 to rotate, lime water in the spray pipe 3 is sprayed in the barrel 1, the first bevel gear 55 drives the second bevel gear 56 to rotate, the second bevel gear 56 drives the third bevel gear 57 to rotate, and the third bevel gear 57 rotates to drive the adjacent spray pipe 3 to rotate.
The rotating mechanism 5 drives the spray pipe 3 to rotate, so that lime water can be more uniformly distributed inside the cylinder body 1, lime water and sulfur oxides in flue gas are enabled to fully contact and react, the reaction efficiency of desulfurization and denitrification of lime water and flue gas is improved, meanwhile, the rotating mechanism 5 drives the spray pipe 3 to rotate, the probability of blockage caused by excessive accumulation of products in a part of areas can be reduced, meanwhile, the occurrence of insufficient local reaction or excessive reaction condition is reduced, the stability of the system is improved, and long-term operation and maintenance of equipment are facilitated.
Referring to fig. 3, 6 and 7, a ventilation plate 22 is provided in the middle of the rotary cylinder 2, a first ventilation hole 23 is provided on the ventilation plate 22, a baffle plate 24 is slidably connected below the ventilation plate 22, a second ventilation hole 25 is provided on the baffle plate 24, a sliding cylinder 26 is provided at the joint of the baffle plate 24 and the cylinder body 1, and the sliding cylinder 26 is used for pushing the baffle plate 24 to slide.
When the reaction is required to be stopped, the sliding cylinder 26 is started, the sliding cylinder 26 drives the baffle plate 24 to move, the first vent hole 23 and the second vent hole 25 are staggered, the baffle plate 24 separates the first vent hole 23, and the condition that the spray pipe 3 is blocked due to continuous reaction of smoke existing in the cylinder body 1 and lime water is reduced.
Referring to fig. 4, the injection mechanism 6 includes a fixed disk 61 fixedly connected to the bottom of the cylinder 1, an injection cavity 62 is provided at the joint between the fixed disk 61 and the cylinder 1, an injection pipe 63 is fixedly connected to the fixed disk 61, the injection pipe 63 is communicated with the injection cavity 62, a rotating block 64 is rotatably connected to the fixed disk 61, an injection plug 65 is slidably connected to the inner sidewall of the fixed disk 61, the rotating block 64 is used for pushing the injection plug 65 to move inwards, and a return spring 66 is fixedly connected to the injection plug 65 and is used for driving the injection plug 65 to return.
The rotating block 64 rotates, when the rotating block 64 moves to the position of the spraying plug 65, the spraying plug 65 is pushed to move inwards, the spraying plug 65 moves inwards to enable liquid in the spraying cavity 62 to impact the surface of the rotating cylinder 2 through the spraying pipe 63, the surface of the rotating cylinder 2 is cleaned, and when the rotating block 64 moves to the position of the spraying plug 65, the reset spring 66 pushes the spraying plug 65 to reset.
Referring to fig. 5, the demister 4 is sleeved on the rotating rod 54, an arc-shaped plate 58 is arranged at the joint of the rotating rod 54 and the demister 4, a sliding spring 59 is fixedly connected to the rotating rod 54, and the sliding spring 59 is sleeved on the rotating rod 54.
The rotating rod 54 rotates to drive the arc-shaped plate 58 to rotate, the arc-shaped plate 58 rotates to drive the demister 4 to swing up and down, and the sliding spring 59 drives the demister 4 to move down after the demister 4 moves up. The surface area of defroster 4 and flue gas contact is improved through the luffing motion, makes the area of contact increase of the sulfur oxide in lime wash and the flue gas, improves the probability of SOx/NOx control, and the while luffing motion can make the dust and the particulate matter on defroster 4 surface more easily clear away, reduces defroster 4 dust deposit's possibility, keeps defroster 4 efficiency and performance.
The implementation principle of the environment-friendly boiler flue gas purification device in the embodiment of the application is as follows: placing barrel 1 on the horizontal plane, letting in the flue gas to air inlet 12, make flue gas get into barrel 1 inside, the flue gas gets into in rotating barrel 2, and move to barrel 1 top through bleeder vent 21 in rotating barrel 2, shower 3 lets in lime water in barrel 1, start rotating motor 51, rotating motor 51 drives first rotation gear 52 and rotates, first rotation gear 52 rotates and drives second rotation gear 53 and rotate, second rotation gear 53 rotates and drives dwang 54 and rotate, dwang 54 drives shower 3 and rotates, lime water in the shower 3 is inside to be spread, first bevel gear 55 drives second bevel gear 56 and rotates, second bevel gear 56 drives third bevel gear 57 and rotates, third bevel gear 57 rotates and drives adjacent shower 3 and rotate.
Lime water contacts with flue gas, carry out denitration desulfurization to the flue gas, the lime water is denitration desulfurization and is handled the back and appears substances such as calcium sulfate, rotating motor 51 drives shower 3 and rotate, spray scraper 31 scrapes the shower 3 upper surface, make substances such as calcium carbonate drop to the section of thick bamboo 2, the section of thick bamboo 2 rotates and drives the resultant and remove, it removes first receiving port 7 department to drive the resultant, the scraping plate 71 of first receiving port 7 department scrapes the lateral wall of section of thick bamboo 2, make the resultant of section of thick bamboo 2 lateral wall drop to first receiving port 7 department, the resultant that falls into the section of thick bamboo 2 inside passes through the lateral wall of section of thick bamboo 2 of rotation, the turning block 64 rotates, when the turning block 64 removes to the injection plug 65 position, promote the inward movement of injection plug 65 and make the liquid in the injection chamber 62 strike the section of thick bamboo 2 surface through the injection pipe 63, clear up the section of thick bamboo 2 surface, after the turning block 64 removes the injection plug 65 position, reset spring 66 promotes the injection plug 65 and resets.
The rotating rod 54 rotates to drive the arc-shaped plate 58 to rotate, the arc-shaped plate 58 rotates to drive the demister 4 to swing up and down, and the sliding spring 59 drives the demister 4 to move down after the demister 4 moves up. The surface area of contact between the demister 4 and the flue gas is increased through vertical swing, so that the contact area between lime water and sulfur oxides in the flue gas is increased, the probability of desulfurization and denitrification is increased, and the flue gas after denitration and desulfurization treatment is discharged through the air outlet 11.
Furthermore, it should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.
While the foregoing is directed to the preferred embodiments of the present application, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the present application.
Claims (6)
1. An environmental protection boiler flue gas purification device, characterized by comprising:
the air outlet (11) is formed in the top of the cylinder body (1), and an air inlet (12) is formed in the middle of the cylinder body (1) and used for introducing flue gas into the cylinder body (1);
The rotary cylinder (2) is rotationally connected in the cylinder body (1) and is arranged at one side of the air inlet (12), and a plurality of air holes (21) are formed in the rotary cylinder (2) and are used for allowing smoke to pass through the rotary cylinder (2) when the smoke moves upwards;
the spray pipe (3) is rotationally connected in the cylinder (1) and is used for injecting lime water into the cylinder (1);
The spray scraping plate (31) is fixedly connected to the inner side wall of the cylinder body (1) and is arranged on the upper surface of the spray pipe (3) and used for scraping liquid on the upper surface of the spray pipe (3);
The demister (4) is connected inside the cylinder (1) in a sliding way and is used for capturing fog particles carried in the flue gas;
the rotating mechanism (5) is arranged on the central axis of the cylinder body (1) and is used for driving the spray pipe (3) to rotate;
and the spraying mechanism (6) is arranged at the bottom of the cylinder body (1) and is used for spraying liquid onto the rotating cylinder (2).
2. An environmental protection boiler flue gas cleaning device according to claim 1, characterized in that: the utility model discloses a barrel, including barrel (1) and barrel, barrel (1) are rotated, barrel (2) junction has seted up first receiving port (7), just first receiving port (7) are provided with scraping movable plate (71) with barrel (1) junction, scraping movable plate (71) are used for scraping the impurity of taking barrel (2) lateral wall department, second receiving port (72) have been seted up to barrel (2) and barrel (1) junction, and second receiving port (72) set up in keeping away from one side of air inlet (12), second receiving port (72) are used for flowing out the impurity that is located barrel (2) inside wall department.
3. An environmental protection boiler flue gas cleaning device according to claim 1, characterized in that the rotating mechanism (5) comprises:
A rotating motor (51), wherein an output shaft of the rotating motor (51) is fixedly connected with a first rotating gear (52);
The second rotating gear (53) is rotationally connected to the central axis of the cylinder body (1), the second rotating gear (53) is arranged at the upper position of the cylinder body (1), and a rotating rod (54) is fixedly connected to the second rotating gear (53);
the first bevel gear (55) is sleeved on the rotating rod (54), the first bevel gear (55) is fixedly connected with the spray pipe (3), and the first bevel gear (55) is used for driving the spray pipe (3) to rotate;
A second bevel gear (56) rotatably connected to a side wall of the rotating rod (54) and engaged with the first bevel gear (55);
and the third bevel gear (57) is fixedly connected to the position above the spray pipe (3) and meshed with the second bevel gear (56), and the third bevel gear (57) is used for driving the adjacent spray pipes (3) to rotate.
4. An environmental protection boiler flue gas cleaning device according to claim 1, characterized in that: the novel rotary cylinder is characterized in that a ventilation plate (22) is arranged at the middle position of the rotary cylinder (2), a first ventilation hole (23) is formed in the ventilation plate (22), a baffle plate (24) is connected below the ventilation plate (22) in a sliding mode, a second ventilation hole (25) is formed in the baffle plate (24), a sliding air cylinder (26) is arranged at the joint of the baffle plate (24) and the cylinder body (1), and the sliding air cylinder (26) is used for pushing the baffle plate (24) to slide.
5. An environmental protection boiler flue gas cleaning device according to claim 1, characterized in that the injection mechanism (6) comprises:
The fixed disc (61) is fixedly connected to the bottom of the cylinder body (1), and a spraying cavity (62) is formed at the joint of the fixed disc (61) and the cylinder body (1);
A jet pipe (63) fixedly connected to the fixed disk (61) and communicated with the jet cavity (62);
the rotating block (64) is rotationally connected to the fixed disc (61), the inner side wall of the fixed disc (61) is slidably connected with the injection plug (65), and the rotating block (64) is used for pushing the injection plug (65) to move inwards;
and the reset spring (66) is fixedly connected to the injection plug (65) and is used for driving the injection plug (65) to reset.
6. An environmental protection boiler flue gas cleaning device according to claim 3, characterized in that: the demister (4) is sleeved on the rotating rod (54), an arc-shaped plate (58) is arranged at the joint of the rotating rod (54) and the demister (4), a sliding spring (59) is fixedly connected to the rotating rod (54), and the sliding spring (59) is sleeved on the rotating rod (54).
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| CN117899650B (en) | 2024-05-31 |
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