CN201275459Y - Centrifugal type flue gas desulfurizing dust-removing device and desulfurizing dust-removing apparatus - Google Patents
Centrifugal type flue gas desulfurizing dust-removing device and desulfurizing dust-removing apparatus Download PDFInfo
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- CN201275459Y CN201275459Y CNU200820149737XU CN200820149737U CN201275459Y CN 201275459 Y CN201275459 Y CN 201275459Y CN U200820149737X U CNU200820149737X U CN U200820149737XU CN 200820149737 U CN200820149737 U CN 200820149737U CN 201275459 Y CN201275459 Y CN 201275459Y
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Abstract
The utility model relates to a flue gas desulfurization and dust-removal device used for flue gas desulfurization and dust removal of a coal-fired boiler or a coal-fired furnace, and a desulfurization and dust-removal unit thereof. The centrifugal-type flue gas desulfurization and dust-removal device comprises: a flue gas inlet pipe (8) tangentially inserted at the upper part of a cylindrical centrifugal desulfurizer (1), a smoke dust discharge port (4) arranged at the lower part of the cylindrical centrifugal desulfurizer, a desulfurizing agent feeder (9) arranged at the front part of the flue gas inlet pipe (8) in correspondence with a flue gas inlet (11), a flue gas-collecting cylinder (5) arranged at the upper part of the inner cavity of the cylindrical centrifugal desulfurizer (1), and a desulfurization and primary dust-removal flue gas outlet pipe (6) guided from the gas-collecting cylinder (5) through the top end of the cylindrical centrifugal desulfurizer (1). Besides the centrifugal-type flue gas desulfurization and dust-removal device, the desulfurization and dust-removal unit at least comprises a first-stage rinsing dust collector (12), an exhaust fan (13) arranged at the flue gas outlet at the top of the rinsing dust collector (12), and a water-filtering membrane (14) and a dust-filtering layer (15), which are arranged in sequence, from top to bottom, in the inner cavity of the rinsing dust collector (12). The centrifugal-type flue gas desulfurization and dust-removal device and the desulfurization and dust-removal unit have the advantages of wide application range, less consumption of rinsing water, high desulfurization efficiency, less consumption of the desulfurizing agent, and optimal environmental-protection index of the flue gas emission.
Description
One, technical field:
The utility model relates to a kind of desulfation dust-extraction device, particularly relates to the smoke desulfurization dust remover and the desulfation dust-extraction device of a kind of coal-burning boiler, the use of stove and accessory flue gas desulfurization and dedusting.
Two, background technology:
Along with the development of industrial science technology, coal-burning boiler and heat supply stove are more and more, and the waste gas of burning also rolls up, and has badly influenced the environment of atmosphere, particularly SO in the flue gas
2Deng pernicious gas, atmosphere is caused severe contamination, because national environmental consciousness is not strong, a lot of large-sized boilers and stove are all supporting to some extent aspect dedusting, small-sized industrial boiler and stove are supporting relatively poor to desulfurating dust removing device for flue gas, even some not dedusting of small-sized stove, so also cause certain pollution to atmosphere.What domestic industry boiler desulfurization deduster disposed at present is that wet dedusting desulfurization carries out simultaneously substantially, because desulfurization reaction temperature is lower, desulfuration solution concentration is lower in addition, and desulfuration efficiency is low.Problems such as desulfurized effect does not all reach the environmental protection index requirement, exists investment high simultaneously, and means of production consumption is big, and sewage load is big.
Three, utility model content:
The utility model is at the prior art deficiency, a kind of centrifugal smoke desulfurization dust remover and desulfation dust-extraction device simple in structure are proposed, can select to use according to actual conditions, applied widely, the slurry amount is little, can improve desulfuration efficiency, reduce the desulfurizing agent use amount, flue gas can reach best environmental protection index.
The technical scheme that the utility model adopted:
A kind of centrifugal smoke desulfurization dust remover, comprise cylindrical shape centrifugal desulfurizing device (1), be provided with flue gas inlet tube (8) on the top of cylindrical shape centrifugal desulfurizing device (1), the bottom is provided with flue dust outlet (4), described flue gas inlet tube (8) tangentially enters cylindrical shape centrifugal desulfurizing device (1), be provided with desulfurizing agent dispenser (9) at the anterior corresponding gas approach of flue gas inlet tube (8) (11), be provided with collection flue gas tube (5) on the inner chamber top of cylindrical shape centrifugal desulfurizing device (1), draw the smoke outlet tube (6) of desulfurization and thick dedusting on the top of cylindrical shape centrifugal desulfurizing device (1) from collection flue gas tube (5).Can adopt when desulfurizing agent is the powdery form in the screw feeder feeding flue, perhaps spray into gas, desulfurizing agent also can spray into flue with liquid condition.
Described centrifugal smoke desulfurization dust remover, coupling is equipped with booster fan (10) in described flue gas inlet tube (8), described booster fan (10) is general or the water-cooled booster fan, the gas outlet of booster fan (10) is cut cylindrical shape centrifugal desulfurizing device (1) inner chamber at an angle, and described incision angle is between 70 degree～160 degree.
Described centrifugal smoke desulfurization dust remover, the outlet of booster fan (10) connects Venturi tube (7), and the front end exit of Venturi tube (7) is cut cylindrical shape centrifugal desulfurizing device (1) inner chamber at an angle.
A kind of desulfation dust-extraction device of centrifugal smoke desulfurization dust remover as mentioned above that contains, also contain one-level scrubber (12) at least, exhanst gas outlet on described scrubber (12) top is provided with air exhauster (13), be provided with water filtration membrane (14) and filter knoisphere (15) from the top down successively at scrubber (12) inner chamber, the below of drainage rete (14) and filter knoisphere (15) is respectively equipped with water or desulfurizing agent solution shower nozzle (16) or jet pipe, the bottom of scrubber (12) is provided with gas approach (17), introduce scrubber (12) through centrifugal smoke desulfurization dust remover flue gas after being purified from gas approach (17), the bottom of scrubber (12) is provided with sewage overflow pipe (18).
Described desulfation dust-extraction device, spill, convex-shaped or flat shape under being shaped as of water filtration membrane (14), described water filtration membrane (14) is at least one deck.
Described desulfation dust-extraction device, water or desulfurizing agent solution shower nozzle (16) are at least one deck, evenly distribute around scrubber (12) inwall; Filter knoisphere (15) is at least two-layer.
Described desulfation dust-extraction device is introduced water or desulfurizing agent solution jet pipe from scrubber (12) body wall, and the jet pipe lower surface is installed shower nozzle type water or desulfurizing agent solution shower nozzle or hole for water spraying is set, and water or desulfurizing agent solution jet pipe are set to together at least.
Useful good effect of the present utility model:
1, the utility model deduster and desulfation dust-extraction device desulfuration efficiency height can reduce the desulfurizing agent use amount.As the case may be sweetening process is carried out on the boiler flue gas outlet pipeline or in the devulcanizer, flue-gas temperature is higher herein, is generally about 300 degree, when high-temperature flue gas fully contacts with desulfurizer powder, desulphurization reaction can carry out fast, thereby reaches the higher desulfuration effect.
2, the utility model desulfation dust-extraction device can be saved a large amount of slurries, reduces sewage load, reduces production costs.After the booster fan pressurization, tangentially enter rotary gravitational precipitator through the flue gas after the desulfurization, the granule dust that absorption forms because centrifugal force and gas micronic dust run foul of each other sinks along circumferential wall part, flue dust collecting more than 80% is regularly discharged behind the gravitational precipitator bottom, reduced scrubbing tower dedusting workload.
3, the utility model desulfation dust-extraction device only leaves the thin dirt of trace through the flue gas behind the rotary gravitational precipitator, and this flue gas is after scrubbing tower is handled once more, and flue gas can reach best environmental protection index.
Four, description of drawings:
Fig. 1: the centrifugal smoke desulfurization dust remover structural representation of the utility model
Fig. 2: the utility model desulfation dust-extraction device structural representation
Five, the specific embodiment:
Embodiment one: referring to Fig. 1, present embodiment is centrifugal smoke desulfurization dust remover (or being referred to as rotary gravitational precipitator), comprise cylindrical shape centrifugal desulfurizing device 1, top at cylindrical shape centrifugal desulfurizing device 1 is provided with flue gas inlet tube 8, the bottom is provided with flue dust outlet 4, flue gas inlet tube 8 tangentially enters cylindrical shape centrifugal desulfurizing device 1, be provided with desulfurizing agent dispenser 9 at flue gas inlet tube 8 anterior corresponding gas approach 11, be provided with collection flue gas tube 5 on the inner chamber top of cylindrical shape centrifugal desulfurizing device 1, draw the smoke outlet tube 6 of desulfurization and thick dedusting on the top of cylindrical shape centrifugal desulfurizing device 1 from collection flue gas tube 5.Coupling is equipped with booster fan 10 in flue gas inlet tube 8, booster fan 10 can be general pressure fan or water-cooled booster fan, the gas outlet of booster fan 10 is cut cylindrical shape centrifugal desulfurizing device 1 inner chamber at an angle, and described incision angle is between 70 degree～160 degree.Can adopt screw feeder feeding when desulfurizing agent is the powdery form or spray in the flue with gas, desulfurizing agent also can spray into flue with liquid state, sweetening process is carried out on the fire coal boiler fume outlet conduit or in the devulcanizer, flue-gas temperature is higher herein, be generally about 300 degree, when high-temperature flue gas fully contacted with desulfurizer powder, desulphurization reaction can carry out fast, thereby reached the higher desulfuration effect.
Embodiment two: referring to Fig. 1, and the centrifugal smoke desulfurization dust remover of present embodiment, different with embodiment one is: the outlet of booster fan 10 connects Venturi tube 7, and the front end exit of Venturi tube 7 is cut cylindrical shape centrifugal desulfurizing device 1 inner chamber at an angle.Utilize the effect of Venturi tube 7, produce negative pressure, be more conducive to flue gas and enter the centrifugal desulfurizing device fast at its front end exit incision cylindrical shape centrifugal desulfurizing device place.
Embodiment three: referring to Fig. 2, present embodiment is the desulfation dust-extraction device that contains aforementioned centrifugal smoke desulfurization dust remover, and number in the figure is identical with the identical representative meaning of embodiment one, does not repeat.The utility model desulfation dust-extraction device, on the basis of aforementioned centrifugal smoke desulfurization dust remover, at least set up one-level scrubber 12, exhanst gas outlet on scrubber 12 tops is provided with air exhauster 13, be provided with water filtration membrane 14 and filter knoisphere 15 from the top down successively at scrubber 12 inner chambers, the below of drainage rete 14 and filter knoisphere 15 is respectively equipped with water or desulfurizing agent solution shower nozzle 16, the bottom of scrubber 12 is provided with gas approach 17, introduce scrubber 12 through centrifugal smoke desulfurization dust remover flue gas after being purified from gas approach 17, the bottom of scrubber 12 is provided with sewage overflow pipe 18.Wherein water filtration membrane 14 is at least one deck, and its shape can be down spill, convex-shaped or flat shape.Water or desulfurizing agent solution shower nozzle 16 evenly distribute around scrubber 12 inwalls.
The utility model desulfation dust-extraction device, filter knoisphere 15 is at least two-layer.
Embodiment four: referring to Fig. 2, the present embodiment desulfation dust-extraction device, different with embodiment three is: introduce water or desulfurizing agent solution jet pipe from scrubber 12 body walls, the jet pipe lower surface is installed shower nozzle type water or desulfurizing agent solution shower nozzle or hole for water spraying is set, according to actual conditions, one water or desulfurizing agent solution jet pipe are set at least.
To smoke content in the flue gas and SO
2The higher flue gas of content is introduced into desulfurization in the rotary gravitational precipitator, dedusting, will enter the dedusting scrubbing tower after most of dust treatment again.The desulfurizing agent dispenser pushes desulfurizing agent in the flue tube and tangentially enters devulcanizer with flue gas, gas after the desulfurization is tangentially sent flue gas into rotary gravitational precipitator by the booster fan on devulcanizer top, material resources effects such as centrifugal force and the particulate dirt by the high pressure draught generation collided mutually, absorption fall into the gravitational precipitator bottom with the volume of smoke seizure regularly to discharge; The flue gas that contains micro-dust descends from the gravitational precipitator top duct, enters the scrubbing tower bottom, and gas is in the uphill process of scrubbing tower bottom, and through water washing dedust, the air exhauster that is provided with by scrubbing tower top is sent gas into smoke stack emission at last.
Claims (7)
1, a kind of centrifugal smoke desulfurization dust remover, comprise cylindrical shape centrifugal desulfurizing device (1), be provided with flue gas inlet tube (8) on the top of cylindrical shape centrifugal desulfurizing device (1), the bottom is provided with flue dust outlet (4), it is characterized in that: described flue gas inlet tube (8) tangentially enters cylindrical shape centrifugal desulfurizing device (1), be provided with desulfurizing agent dispenser (9) at the anterior corresponding gas approach of flue gas inlet tube (8) (11), be provided with collection flue gas tube (5) on the inner chamber top of cylindrical shape centrifugal desulfurizing device (1), draw the smoke outlet tube (6) of desulfurization and thick dedusting on the top of cylindrical shape centrifugal desulfurizing device (1) from collection flue gas tube (5).
2, centrifugal smoke desulfurization dust remover according to claim 1, it is characterized in that: coupling is equipped with booster fan (10) in described flue gas inlet tube (8), described booster fan (10) is general or the water-cooled booster fan, the gas outlet of booster fan (10) is cut cylindrical shape centrifugal desulfurizing device (1) inner chamber at an angle, and described incision angle is between 70 degree～160 degree.
3, centrifugal smoke desulfurization dust remover according to claim 2 is characterized in that: the outlet of booster fan (10) connects Venturi tube (7), and the front end exit of Venturi tube (7) is cut cylindrical shape centrifugal desulfurizing device (1) inner chamber at an angle.
4, a kind of desulfation dust-extraction device that contains the described centrifugal smoke desulfurization dust remover of claim 1, it is characterized in that: contain one-level scrubber (12) at least, exhanst gas outlet on described scrubber (12) top is provided with air exhauster (13), be provided with water filtration membrane (14) and filter knoisphere (15) from the top down successively at scrubber (12) inner chamber, the below of drainage rete (14) and filter knoisphere (15) is respectively equipped with water or desulfurizing agent solution shower nozzle (16) or jet pipe, the bottom of scrubber (12) is provided with gas approach (17), introduce scrubber (12) through centrifugal smoke desulfurization dust remover flue gas after being purified from gas approach (17), the bottom of scrubber (12) is provided with sewage overflow pipe (18).
5, according to having the right requirement 4 described desulfation dust-extraction devices, it is characterized in that: spill, convex-shaped or flat shape under being shaped as of water filtration membrane (14), described water filtration membrane (14) is at least one deck.
6, according to having the right requirement 4 or 5 described desulfation dust-extraction devices, it is characterized in that: water or desulfurizing agent solution shower nozzle (16) are at least one deck, evenly distribute around scrubber (12) inwall; Filter knoisphere (15) is at least two-layer.
7, according to having the right requirement 4 or 5 described desulfation dust-extraction devices, it is characterized in that: introduce water or desulfurizing agent solution jet pipe from scrubber (12) body wall, the jet pipe lower surface is installed shower nozzle type water or desulfurizing agent solution shower nozzle or hole for water spraying is set, and water or desulfurizing agent solution jet pipe are set to together at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820149737XU CN201275459Y (en) | 2008-10-15 | 2008-10-15 | Centrifugal type flue gas desulfurizing dust-removing device and desulfurizing dust-removing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820149737XU CN201275459Y (en) | 2008-10-15 | 2008-10-15 | Centrifugal type flue gas desulfurizing dust-removing device and desulfurizing dust-removing apparatus |
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| Publication Number | Publication Date |
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| CN201275459Y true CN201275459Y (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU200820149737XU Expired - Fee Related CN201275459Y (en) | 2008-10-15 | 2008-10-15 | Centrifugal type flue gas desulfurizing dust-removing device and desulfurizing dust-removing apparatus |
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| CN (1) | CN201275459Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512914A (en) * | 2012-01-13 | 2012-06-27 | 伍进庆 | Centrifugal separation integral desulfurization, dust removal and deodorization device |
| CN114606026A (en) * | 2022-04-26 | 2022-06-10 | 北京北科环境工程有限公司 | Method for simultaneously desulfurizing and dechlorinating blast furnace gas |
-
2008
- 2008-10-15 CN CNU200820149737XU patent/CN201275459Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512914A (en) * | 2012-01-13 | 2012-06-27 | 伍进庆 | Centrifugal separation integral desulfurization, dust removal and deodorization device |
| CN114606026A (en) * | 2022-04-26 | 2022-06-10 | 北京北科环境工程有限公司 | Method for simultaneously desulfurizing and dechlorinating blast furnace gas |
| CN114606026B (en) * | 2022-04-26 | 2023-01-17 | 北京北科环境工程有限公司 | Method for simultaneously desulfurizing and dechlorinating blast furnace gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20111015 |