CN101940873A - Flue gas circulation fluidized bed desulfurizing device provided with corrugated plate - Google Patents
Flue gas circulation fluidized bed desulfurizing device provided with corrugated plate Download PDFInfo
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- CN101940873A CN101940873A CN2010102516488A CN201010251648A CN101940873A CN 101940873 A CN101940873 A CN 101940873A CN 2010102516488 A CN2010102516488 A CN 2010102516488A CN 201010251648 A CN201010251648 A CN 201010251648A CN 101940873 A CN101940873 A CN 101940873A
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Abstract
The invention belongs to desulfurizing environmental protection equipment, and relates to a flue gas circulation fluidized bed desulfurizing device provided with a corrugated plate. After the upper part of a reactor (2) is provided with a corrugated plate separator (3), particles with small diameter and low density are less influenced or not influenced by the corrugated plate, and can effuse from the reactor easily; and the particles with the small diameter are the fly ash particles which do not contain CaO and the small particles after desulfurization reaction, wherein the CaO content is very low. The particles with the large diameter and large inertia have great probability of touch and friction with the wall surface of the corrugated plate when passing through the corrugated plate, so the speed is reduced, and the particles fall back into the reactor. When the particles have touch and friction with the corrugated plate, the surface of large-particle calcined lime is broken or a desulfurization product on the surface falls off, so that the novel CaO surface is exposed. The desulfurizing environmental protection equipment increases bed material concentration in the reactor, enhances disturbance of the particles, improves desulfurizing efficiency and calcium utilization rate, and reduces recirculation ash content and pressure on a subsequent dust remover at the same time.
Description
Technical field: the invention belongs to the flue gas desulfurization environmental technology field, relate to a kind of flue gas circulating fluidized bed desulfurization device that adds corrugated plating.
Background technology: the flue gas circulating fluidized bed desulfurization technology is the later stage eighties 20th century by the exploitation of German Lurgi company.Whole desulphurization system is made up of quick lime storehouse, fluid-bed sweetening reactor, deduster, fly ash re-injection system and induction system.
The main control parameters of the flue gas circulating fluidized bed desulfurization technology calcium to sulphur mole ratio in residence time, water spraying atomization rate and injection flow rate in reactor of bed material circulating ratio, reactor beds material concentration, flue gas in the device, the reactor that responds.
For with SO residual in the flue gas after desulfurization
2Concentration is controlled in certain scope, realizes by strengthening calcium sulfur ratio in the engineering, improves calcium sulphur additional proportion on the one hand, improves bed material circulating ratio on the other hand.Caused a large amount of quick limes of not participating in reaction finally to be discharged with the form of flying dust, caused the waste of resource, higher circulating ratio can increase the weight of the deduster burden simultaneously, increases the wearing and tearing of equipment.
The technical solution used in the present invention is: the corrugated plating of high-abrasive material is set in the middle and upper part of desulfurization reactor, the flying dust in the flue gas is carried out pre-separation.
Compared with prior art, this invention technology has the following advantages:
1, it is little or unaffected that diameter is less, the density smaller particles is influenced by corrugated plating, can overflow from reactor easily, and what diameter was little is not contain the fly ash granule of CaO and the granule behind the desulphurization reaction, and wherein the content of CaO is very low.Its inertia of particle that diameter is big, density is bigger is bigger, by corrugated plating the time and the corrugated plating wall that touching takes place is bigger with the probability of friction, speed reduces, and falls back in the reactor, what general diameter was big is quicklime particles.Thereby on the basis that does not influence the reactor operation, improved material concentration, thereby improved desulfuration efficiency.
2, in the process of touching, rubbing with corrugated plating, bulky grain quick lime surface failure of rock or superficial layer desulfurization product come off, and new CaO surface exposure is come out, and new surface can be carried out desulphurization reaction once more, thereby has improved calcium utilization.
3, bulky grain quick lime carries out inner loop in desulfurization reactor, can reduce recirculation ash amount, has reduced the pressure to follow-up dust arrester effectively, has improved its efficiency of dust collection and service life.
4, corrugated plating adopts wear-resistant material, improves its service life, to system continuously, stable operation is significant.
Description of drawings: Fig. 1 is the system flow chart of the embodiment of the invention.
Fig. 2 is the structural representation of the embodiment of the invention.
The specific embodiment: the present invention is described in detail below in conjunction with embodiment and accompanying drawing.
As shown in Figure 1, quick lime in the quick lime storehouse (1) and flue gas enter into desulfurization reactor (2) together, enter into deduster (4) through the flue gas behind the desulfurization reaction, flue gas after being purified enters atmosphere, the flying dust of separating enters ash bucket (5), be transported to reject bin (6) through behind the star-like unloading valve, behind ash bucket (5), be provided with recycle valve, make dry ash get back to desulfurization reactor (2) with the form that recycles ash.
As shown in Figure 2, after reactor (2) top has installed corrugated plating separator (3) additional, it is little or unaffected that diameter is less, the density smaller particles is influenced by corrugated plating, can from reactor, overflow easily, what diameter was little is not contain the fly ash granule of CaO and the granule behind the desulphurization reaction, and wherein the content of CaO is very low.Its inertia of particle that diameter is bigger is bigger, when the corrugated plating and the corrugated plating wall that touching takes place is bigger with the probability of friction, speed reduces, and falls back in the reactor.In the process of touching, rubbing with corrugated plating, bulky grain quick lime surface failure of rock or superficial layer desulfurization product come off, and new CaO surface exposure is come out, thereby reach the effect that improves desulphurization reaction rate and calcium utilization.
Claims (1)
1. flue gas circulating fluidized bed desulfurization reactor that adds the corrugated plating separator is characterized in that: add the separator of corrugated plating form in the reactor middle and upper part, its effect is that the solid material to inside reactor separates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102516488A CN101940873A (en) | 2010-08-08 | 2010-08-08 | Flue gas circulation fluidized bed desulfurizing device provided with corrugated plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102516488A CN101940873A (en) | 2010-08-08 | 2010-08-08 | Flue gas circulation fluidized bed desulfurizing device provided with corrugated plate |
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| CN101940873A true CN101940873A (en) | 2011-01-12 |
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| CN2010102516488A Pending CN101940873A (en) | 2010-08-08 | 2010-08-08 | Flue gas circulation fluidized bed desulfurizing device provided with corrugated plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115155296A (en) * | 2022-06-09 | 2022-10-11 | 邓晓婷 | Industrial flue gas desulfurization device and desulfurization method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357298A (en) * | 2007-07-31 | 2009-02-04 | 黄盛珠 | Circulating fluid bed flue gas desulfurization technique and device |
| CN101402028A (en) * | 2008-10-31 | 2009-04-08 | 江苏宏达新材料股份有限公司 | Organosilicon fluid bed reactor with block flow layer |
| CN101695627A (en) * | 2009-10-31 | 2010-04-21 | 福建龙净脱硫脱硝工程有限公司 | Dry-method fume gas purification method and device for synchronous desulfurization and denitrification |
| CN201493051U (en) * | 2009-07-24 | 2010-06-02 | 黄震 | Flue gas desulfurization and return device for circulating fluidized bed |
-
2010
- 2010-08-08 CN CN2010102516488A patent/CN101940873A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357298A (en) * | 2007-07-31 | 2009-02-04 | 黄盛珠 | Circulating fluid bed flue gas desulfurization technique and device |
| CN101402028A (en) * | 2008-10-31 | 2009-04-08 | 江苏宏达新材料股份有限公司 | Organosilicon fluid bed reactor with block flow layer |
| CN201493051U (en) * | 2009-07-24 | 2010-06-02 | 黄震 | Flue gas desulfurization and return device for circulating fluidized bed |
| CN101695627A (en) * | 2009-10-31 | 2010-04-21 | 福建龙净脱硫脱硝工程有限公司 | Dry-method fume gas purification method and device for synchronous desulfurization and denitrification |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115155296A (en) * | 2022-06-09 | 2022-10-11 | 邓晓婷 | Industrial flue gas desulfurization device and desulfurization method |
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Application publication date: 20110112 |