CN201832549U - Dust removal, desulfurization and denitrification integrated reactor - Google Patents
Dust removal, desulfurization and denitrification integrated reactor Download PDFInfo
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- CN201832549U CN201832549U CN2010205082734U CN201020508273U CN201832549U CN 201832549 U CN201832549 U CN 201832549U CN 2010205082734 U CN2010205082734 U CN 2010205082734U CN 201020508273 U CN201020508273 U CN 201020508273U CN 201832549 U CN201832549 U CN 201832549U
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- reaction chamber
- dust
- flue gas
- removal
- denitrification integral
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Abstract
The utility model discloses a dust removal, desulfurization and denitrification integrated reactor, which comprises a shell, a flue gas inlet and a flue gas outlet. The flue gas inlet and the flue gas outlet are arranged at the two ends of the shell, the bottom in the shell is provided with an alkali liquor accommodating area, a throat part for flue gas to pass through, a first reaction chamber and a second reaction chamber are arranged above the alkali liquor accommodating area, the first reaction chamber and the second reaction chamber are communicated through the throat part, and the flue gas inlet and the flue gas outlet are respectively arranged on the top of the first reaction chamber and the top of the second reaction chamber. The dust removal, desulfurization and denitrification integrated reactor has strong effects of dust removal, desulfurization and denitrification, and the purification efficiency of the flue gas can be significantly improved through integration reaction, and meanwhile the input cost is reduced.
Description
Technical field
The utility model relates to environmental technology field, relates in particular to a kind of dust-removal and desulfurizing denitrification integral reaction unit.
Background technology
Growing along with modern industrial technology, the contaminative flue gas that produces in the using energy source process has become a very important problem to the harm that ecological environment and human lives bring.With heavy polluted industries such as power plant, heating boiler, glass manufacturings is example, the flue gas that produces after fuel such as coal tar, natural gas, petroleum coke powder even raw coal burn in boiler or kiln mainly comprises multiple harmful substances such as dust, oxysulfide, nitrogen oxide, if directly be disposed in the air, not only pollution of ecological environment, harm humans health, but also can corrode production equipment, whole production technology is caused adverse effect.
Flue gas ash removal generally includes dual mode: dry method dust and wet dedusting, and equipment such as dry method dust general using gravity settling chamber, inertial dust separator, electric cleaner, sack cleaner, cyclone dust collectors are applicable to the flue gas ash removal that temperature and concentration are lower; Equipment such as wet dedusting general using spray column, impingement dust collector, Venturi scrubbing agent, bubble dust collector and water dust scrubber are applicable to the strong flue gas ash removal of temperature height, corrosivity that above said all kinds of kilns produce.Flue gas desulfurization technique mainly can be divided into dry method, semidry method and wet method three major types.The efficient of dry method, semi-dry desulphurization is relatively low, is difficult to reach country or the local environmental protection standard of formulating, and the efficient of wet desulphurization is higher, not only can reach the desulfurization requirement of environmental protection standard regulation, and absorb sour gas such as HF and HCl easily.The flue-gas denitrification of comparative maturity (being commonly called as denitration) technology adopts selective non-catalytic (SNCR) technology and selectivity catalysis (SCR) technology at present, mainly utilizes reducing agents such as ammonia, urea under certain condition with NO
XReduction becomes N
2, the SNCR technology is carried out in 900～12000 ℃ temperature range, and denitration efficiency is relatively low, for example the NO of oil burning boiler
XDischarge capacity only reduces by 30%～50%; SCR technology denitration efficiency significantly improves, yet owing to has used the very strong NH of corrosivity
3Or ammoniacal liquor, the requirement height to pipeline equipment has increased equipment cost, and because NH
3Addition be difficult to accurate control, cause secondary pollution easily.
Along with people's environmental consciousness progressively strengthens, standard limit of smog release is also strict day by day, therefore, the dedusting of existing flue gases purification, desulfurization, denitration efficiency are still waiting further raising, on this basis, also should suitably control the pollutant control cost, to reduce the burden on enterprises by improving flue gases purification.
The utility model content
The main technical problems to be solved in the utility model is that a kind of a kind of dust-removal and desulfurizing denitrification integral reaction unit that improves gas cleaning efficient, reduces treatment cost is provided.
For solving the problems of the technologies described above, the utility model provides a kind of dust-removal and desulfurizing denitrification integral reaction unit, comprise housing and the smoke inlet and the exhanst gas outlet that lay respectively at described housing two ends, bottom in the described housing comprises the alkali lye disposal area, the top of described alkali lye disposal area is provided with and is used for aditus laryngis and first reaction chamber and second reaction chamber that flue gas passes through, be interconnected by described aditus laryngis between described first reaction chamber and described second reaction chamber, described smoke inlet and exhanst gas outlet lay respectively at the top of described first reaction chamber and second reaction chamber.
Further, be provided with first spray nozzle that sprays alkali lye to described flue gas in described first reaction chamber.
The spray direction of described first spray nozzle upwards.
Further, be provided with second spray nozzle that sprays alkali lye to described flue gas in described second reaction chamber.
The spray direction of described second spray nozzle also makes progress.
Preferably, the inwall of described smoke inlet has the contraction platform that is provided with along the approach axis reducing of described flue gas.
Preferably, at least one water fender that extend internally out on the inwall in described second reaction chamber, described water fender is positioned at the top of described second spray nozzle.
Described water fender tilts to extend upward.
Preferably, also be provided with at least one puff prot that sinks in the alkali lye in the described alkali lye disposal area, the jet direction of described puff prot upwards.
Described puff prot is oxygen puff prot or aerojet mouth.
The beneficial effects of the utility model are: this practical dust-removal and desulfurizing denitrification integral reaction unit has stronger dedusting, desulfurization and denitration treatment effect, can pass through integrated reacting, significantly improve the purification efficiency of flue gas, can be used as pre-processing device or independently purification apparatus be applicable to multiple smelting and chemical industries such as power plant, heating boiler, glass manufacturing, can the flue gas that fuel such as coal tar, natural gas, petroleum coke powder even raw coal are discharged effectively be purified.
Compared with prior art, treating apparatus of the present utility model is on the basis of improving purification efficiency, and area occupied is less, and equipment investment is less, has therefore significantly reduced entreprise cost.
Description of drawings
Fig. 1 is the dust-removal and desulfurizing denitrification integral reaction unit structural representation of a kind of embodiment of the utility model;
The specific embodiment
In conjunction with the accompanying drawings the utility model is described in further detail below by the specific embodiment.
Please refer to Fig. 1, the dust-removal and desulfurizing denitrification integral reaction unit of present embodiment, comprise housing 8, housing 8 two ends are respectively equipped with smoke inlet 1 and exhanst gas outlet 2, bottom in the housing 8 comprises alkali lye disposal area 7, the top of alkali lye disposal area 7 is provided with and is used for the aditus laryngis 9 that flue gas passes through, also be provided with first reaction chamber 10 and second reaction chamber 11 that are positioned at 7 tops, alkali lye disposal area in the housing 8, be interconnected by aditus laryngis 9 between first reaction chamber 10 and second reaction chamber 11, smoke inlet 1 and exhanst gas outlet 2 lay respectively at the top of first reaction chamber 10 and second reaction chamber 12.
The inwall of smoke inlet 1 is provided with the contraction platform 13 that is provided with along the approach axis reducing of flue gas, for example the contour shape of contraction platform 13 can be arranged to square, circular or other shapes, and form an aditus laryngis formula structure, flue gas is entered by this aditus laryngis again have equally distributed fluidised form after the space becomes big first reaction chamber, 10 inside.Also be provided with at least one first spray nozzle 12 to the flue gas spray alkali lye that enters in first reaction chamber 10, its spray direction makes progress, with the downward direction contrary that impacts of flue gas.
In the present embodiment,, can hold the high speed flue gas that enters in first reaction chamber 10, and adopt first spray nozzle 12 that it is carried out reverse spray and realize one-time dedusting, desulfurization and denitration processing because first reaction chamber 10 is communicated with smoke inlet 1.Through high speed flue gas downward alkali lye that impacts alkali lye disposal area 7 under the air-flow effect of spray, and at aditus laryngis 9 places formation strong turbulence, a large amount of sprays that splash in the impact process form water curtain in housing 8.In this process, the grit in the flue gas is because flue gas changes flow direction during by aditus laryngis 9 separates, and captured by the water droplet in the water curtain simultaneously and falls into alkali lye disposal area 7, and part oxysulfide and nitrogen oxide also react with alkali lye and be removed.Also be provided with at least one second spray nozzle 4 in second reaction chamber 11, its spray direction upwards, and is identical with the flow of flue gas direction.Second reaction chamber 11 is communicated with exhanst gas outlet 2, can hold by being about to flow out the flue gas of second reaction chamber 11 behind the aditus laryngis 9, and by second spray nozzle 4 it forward be sprayed and to carry out dedusting once more, desulfurization and denitration and handle.
Be provided with at least one water fender 3 that extends internally from inwall in second reaction chamber 11, water fender 3 is positioned at the top of second spray nozzle 4, and tilt to extend upward, can make the water droplet that carries grit in the water curtain accumulate in its bottom and following current to alkali lye disposal area 7, so that discharge.
Preferably, the dust-removal and desulfurizing denitrification integral reaction unit of present embodiment also is provided with at least one puff prot 6 that sinks in the alkali lye in alkali lye disposal area 7, the jet direction of puff prot 6 upwards, the oxygen from oxidant to puff prot 6 or the air that can the air injection pipe 5 by stretching into alkali lye feed as, puff prot 6 spray into the activity that oxygen or air can effectively improve flue gas sulphur oxide, nitrogen oxide and alkali lye generation neutralization reaction in alkali lye.
The alkali lye that the utility model adopts can be soda lye, and for example NaOH also can use ammoniacal liquor, KOH or Ca (OH)
2Deng alkaline solution.In addition, the inwall of dust-removal and desulfurizing denitrification integral reaction unit also can apply heatproof and covers acidproof, heatproof, wear-resistant protective layer.
This practical dust-removal and desulfurizing denitrification integral reaction unit has stronger dedusting, desulfurization and denitration treatment effect, can pass through integrated reacting, significantly improve the purification efficiency of flue gas, can be used as pre-processing device or independently purification apparatus be applicable to multiple smelting and chemical industries such as power plant, heating boiler, glass manufacturing, can the flue gas that fuel such as coal tar, natural gas, petroleum coke powder even raw coal are discharged effectively be purified.
Compared with prior art, treating apparatus of the present utility model is on the basis of improving purification efficiency, and area occupied is less, and equipment investment is less, has therefore significantly reduced entreprise cost.
Above content be in conjunction with concrete embodiment to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. dust-removal and desulfurizing denitrification integral reaction unit, comprise housing and the smoke inlet and the exhanst gas outlet that lay respectively at described housing two ends, bottom in the described housing comprises the alkali lye disposal area, it is characterized in that, the top of described alkali lye disposal area is provided with and is used for aditus laryngis and first reaction chamber and second reaction chamber that flue gas passes through, be interconnected by described aditus laryngis between described first reaction chamber and described second reaction chamber, described smoke inlet and exhanst gas outlet lay respectively at the top of described first reaction chamber and second reaction chamber.
2. dust-removal and desulfurizing denitrification integral reaction unit as claimed in claim 1 is characterized in that, is provided with first spray nozzle to described flue gas spray alkali lye in described first reaction chamber.
3. dust-removal and desulfurizing denitrification integral reaction unit as claimed in claim 2 is characterized in that, the spray direction of described first spray nozzle upwards.
4. dust-removal and desulfurizing denitrification integral reaction unit as claimed in claim 1 is characterized in that, is provided with second spray nozzle to described flue gas spray alkali lye in described second reaction chamber.
5. dust-removal and desulfurizing denitrification integral reaction unit as claimed in claim 4 is characterized in that, the spray direction of described second spray nozzle upwards.
6. as each described dust-removal and desulfurizing denitrification integral reaction unit in the claim 1 to 5, it is characterized in that the inwall of described smoke inlet has the contraction platform that is provided with along the approach axis reducing of described flue gas.
7. as each described dust-removal and desulfurizing denitrification integral reaction unit in the claim 1 to 5, it is characterized in that, at least one water fender that extend internally out on the inwall in described second reaction chamber, described water fender is positioned at the top of described second spray nozzle.
8. dust-removal and desulfurizing denitrification integral reaction unit as claimed in claim 7 is characterized in that, described water fender tilts to extend upward.
9. as each described dust-removal and desulfurizing denitrification integral reaction unit in the claim 1 to 5, it is characterized in that, also be provided with at least one puff prot that sinks in the alkali lye in the described alkali lye disposal area, the jet direction of described puff prot upwards.
10. dust-removal and desulfurizing denitrification integral reaction unit as claimed in claim 9 is characterized in that, described puff prot is oxygen puff prot or aerojet mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205082734U CN201832549U (en) | 2010-08-27 | 2010-08-27 | Dust removal, desulfurization and denitrification integrated reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205082734U CN201832549U (en) | 2010-08-27 | 2010-08-27 | Dust removal, desulfurization and denitrification integrated reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201832549U true CN201832549U (en) | 2011-05-18 |
Family
ID=44002645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205082734U Expired - Fee Related CN201832549U (en) | 2010-08-27 | 2010-08-27 | Dust removal, desulfurization and denitrification integrated reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201832549U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102961945A (en) * | 2012-11-29 | 2013-03-13 | 中南大学 | System with integrated functions of high-temperature flue gas dedusting, desulfurization and denitrification |
| CN108543384A (en) * | 2018-06-11 | 2018-09-18 | 赵二勋 | A kind of environment-friendly spray coating dust removal with machine purifier |
| CN108905579A (en) * | 2018-08-07 | 2018-11-30 | 淮北市向阳锅炉厂 | A kind of water curtain desulfurizing dust-collector |
-
2010
- 2010-08-27 CN CN2010205082734U patent/CN201832549U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102961945A (en) * | 2012-11-29 | 2013-03-13 | 中南大学 | System with integrated functions of high-temperature flue gas dedusting, desulfurization and denitrification |
| CN108543384A (en) * | 2018-06-11 | 2018-09-18 | 赵二勋 | A kind of environment-friendly spray coating dust removal with machine purifier |
| CN108905579A (en) * | 2018-08-07 | 2018-11-30 | 淮北市向阳锅炉厂 | A kind of water curtain desulfurizing dust-collector |
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| 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: 20110518 Termination date: 20120827 |