CN205216581U - Can realize device of flue gas desulfurization denitration simultaneously - Google Patents
Can realize device of flue gas desulfurization denitration simultaneously Download PDFInfo
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- CN205216581U CN205216581U CN201521067462.1U CN201521067462U CN205216581U CN 205216581 U CN205216581 U CN 205216581U CN 201521067462 U CN201521067462 U CN 201521067462U CN 205216581 U CN205216581 U CN 205216581U
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- liquid
- sox
- nox control
- desulphurization denitration
- flue gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model relates to a can realize device of flue gas desulfurization denitration simultaneously, it includes the SOx/NOx control tower, the top of SOx/NOx control tower is equipped with the gas outlet, and the bottom is equipped with the liquid outlet, liquid inlet has been seted up on the upper portion of SOx/NOx control tower lateral wall, and the gas access has been seted up to the lower part of lateral wall, upper portion in the SOx/NOx control tower is equipped with the below that defroster and a liquid distributor, a liquid distributor lie in the defroster, and liquid inlet lies in between defroster and the liquid distributor, middle part interval in the SOx/NOx control tower is equipped with a plurality of packing layers, is equipped with secondary liquid distributor between the adjacent packing layer, the packing layer comprises a plurality of silk screen layers of placing the catalyst, the liquid outlet is connected with the liquid reserve tank. The device simple structure, integrated nature is high, can be in same tower simultaneously effective desorption SO2 and NOx, greatly reduced the complexity of current SOx/NOx control system, saved capital construction, the cost is reduced and operating power consumption.
Description
Technical field
The utility model belongs to desulphurization denitration equipment technical field, has been specifically related to a kind of device that simultaneously can realize flue gas desulfurization and denitrification.
Background technology
China is that minority take coal as the big country of main energy sources in the world, and China's Coal-fired capacity accounts for about seventy percent in primary energy consumption, also will account for about 60% to the year two thousand fifty.SO
2with the important atmosphere pollution that NOx is coal fired thermal power plant discharge, the health of the mankind in the serious threats such as the acid rain formed in these pollutant emissions to air and photochemical fog, destroys ecological environment.Thoroughly to change the trend of this pollution grows worse, realize the sustainable development of the mankind, just must to SO
2carry out control with NOx to administer.
At present, China is comparatively ripe and the flue gas desulfurization and denitrification technology be most widely used is traditional lime/lime stone method (FGD) combines ammine selective catalytic oxidation reducing process (SCR), but two kinds of technology need be adopted, two covering devices carry out desulphurization denitration, although denitrification efficiency is higher, have that desulphurization denitration device structure is complicated, floor space large, cost of investment and a high defect of operating cost.Therefore, find that a kind of equipment is simple, operating cost is low and the equipment that denitrification efficiency is high is the key point solving this problem.
Utility model content
The utility model object is to overcome prior art defect, and provide a kind of device that simultaneously can realize flue gas desulfurization and denitrification, this apparatus structure is simple, operating cost is low and desulfurization off sulfide effect is good.
For achieving the above object, the utility model adopts following technical scheme:
Can realize a device for flue gas desulfurization and denitrification, it comprises desulphurization denitration tower simultaneously, and the top of described desulphurization denitration tower is provided with gas vent, and bottom is provided with liquid outlet; The top of desulphurization denitration tower side wall offers liquid inlet, and the bottom of sidewall offers gas access; Top in described desulphurization denitration tower is provided with the below that demister and a liquid distribution trough, a liquid distribution trough are positioned at demister, and liquid inlet is between demister and a liquid distribution trough; Middle part in described desulphurization denitration tower is interval with some packing layers, is provided with secondary liquid distribution trough between adjacent packing layer, and described packing layer is made up of some silk screen layers being placed with catalyst; Described liquid outlet is connected with liquid reserve tank.
Concrete, a described liquid distribution trough is fountain liquid distribution trough.
Compared to the prior art, the beneficial effects of the utility model:
The utility model apparatus structure is simple, and integration is high, effectively can remove SO in same tower simultaneously
2and NOx, thus realize high efficiency desulphurization denitration, greatly reduce the complexity of existing system for desulfuration and denitration, save capital construction, reduce cost and operation energy consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation that simultaneously can realize the device of flue gas desulfurization and denitrification described in the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further details, but protection domain of the present utility model is not limited thereto.
embodiment 1
As shown in Figure 1, a kind of device that simultaneously can realize flue gas desulfurization and denitrification, it comprises desulphurization denitration tower 5, and the top of described desulphurization denitration tower 5 is provided with gas vent 1, and bottom is provided with liquid outlet 10.The top of desulphurization denitration tower 5 sidewall offers liquid inlet 3, and the bottom of sidewall offers gas access 9.Top in described desulphurization denitration tower 5 is provided with the below that demister 2 and a liquid distribution trough 4, liquid distribution trough 4 are positioned at demister 2, and liquid inlet 3 is between demister 2 and a liquid distribution trough 4; Middle part in described desulphurization denitration tower 5 is interval with upper strata packing layer 6 and lower floor's packing layer 8, secondary liquid distribution trough 7 is provided with between adjacent upper strata packing layer 6 and lower floor's packing layer 8, upper strata packing layer 6 and lower floor's packing layer 8 are by some silk screen layers composition (silk screen layer can laterally fix or clamping is located on the inwall of desulphurization denitration tower 5, and silk screen layer is in order to support catalyst) being placed with catalyst.The liquid outlet 10 be located at bottom desulphurization denitration tower 5 is connected with liquid reserve tank 11.A described liquid distribution trough 4 is fountain liquid distribution trough.
When using device described in the utility model, catalyst is loaded in desulphurization denitration tower 5 and form upper strata packing layer 6 and lower floor's packing layer 8, the useful load of catalyst is 1/2 of desulphurization denitration tower 5 volume, the hydrogen peroxide of concentration 0.3mol/L enters desulphurization denitration tower 5 inside and sprays on a catalyst through a liquid distribution trough 4 from liquid inlet 3, react and generate strong oxidizing property free radical OH, form Fenton reagent.Secondary liquid distribution trough 7 is located between upper strata packing layer 6 and lower floor's packing layer 8, so that the hydrogen peroxide distribution after upper strata packing layer 6 catalysis is evenly distributed again.Desulphurization denitration tower 5 does not need heating.Flue gas enters (flue gas flow 8000m by gas access 9
3/ h), fully contact with reactant liquor in uphill process and react, make NOx and SO in flue gas
2be fully oxidized absorption, thus complete desulphurization denitration.Flue gas after desulphurization denitration is discharged (time of staying of flue gas in tower is about 20min) from gas vent 1 after demister 2 demist at top again.The nitric acid that reaction produces and sulfuric acid raffinate are drained in liquid reserve tank 11 by liquid outlet at the bottom of tower 10 to be recycled further as the raw material of industry.
Above-mentioned catalyst used can prepare through following method: by pulverized, specific area is 200-300m
2magnetic iron ore roasting 4h at 700 DEG C of/g, after being cooled to 25 DEG C, joins the nano-TiO of 35wt% by magnetic iron ore
2in solution (maceration extract), dry at 110 DEG C after leaving standstill 24h, make magnetic iron ore and nano-TiO
2mass ratio be 3.5:1, then roasting 7h and get final product at 1100 DEG C.
Adopt device described in the utility model, its desulfuration efficiency more than 97%, denitration efficiency more than 78%,
It should be noted last that: above-described embodiment is only illustrative rather than definitive thereof the technical solution of the utility model; any equivalent replacement of carrying out the utility model and the amendment not departing from the utility model spirit and scope or local are replaced, and it all should be encompassed within the scope of the utility model claim protection.
Claims (2)
1. can realize a device for flue gas desulfurization and denitrification simultaneously, it is characterized in that, comprise desulphurization denitration tower, the top of described desulphurization denitration tower is provided with gas vent, and bottom is provided with liquid outlet; The top of desulphurization denitration tower side wall offers liquid inlet, and the bottom of sidewall offers gas access; Top in described desulphurization denitration tower is provided with the below that demister and a liquid distribution trough, a liquid distribution trough are positioned at demister, and liquid inlet is between demister and a liquid distribution trough; Middle part in described desulphurization denitration tower is interval with some packing layers, is provided with secondary liquid distribution trough between adjacent packing layer, and described packing layer is made up of some silk screen layers being placed with catalyst; Described liquid outlet is connected with liquid reserve tank.
2. can realize the device of flue gas desulfurization and denitrification as claimed in claim 1 simultaneously, it is characterized in that, a described liquid distribution trough is fountain liquid distribution trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067462.1U CN205216581U (en) | 2015-12-21 | 2015-12-21 | Can realize device of flue gas desulfurization denitration simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067462.1U CN205216581U (en) | 2015-12-21 | 2015-12-21 | Can realize device of flue gas desulfurization denitration simultaneously |
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| CN205216581U true CN205216581U (en) | 2016-05-11 |
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| CN201521067462.1U Active CN205216581U (en) | 2015-12-21 | 2015-12-21 | Can realize device of flue gas desulfurization denitration simultaneously |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955589A (en) * | 2017-04-11 | 2017-07-18 | 中国海洋大学 | A kind of boiler smoke simultaneous SO_2 and NO removal device |
| CN109622070A (en) * | 2018-12-10 | 2019-04-16 | 北京科技大学 | One kind scrapping denitrating catalyst regeneration method |
| CN109925877A (en) * | 2019-04-03 | 2019-06-25 | 四川大学 | A kind of ceramic kiln flue gas multiple pollutant collaboration governing system |
-
2015
- 2015-12-21 CN CN201521067462.1U patent/CN205216581U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955589A (en) * | 2017-04-11 | 2017-07-18 | 中国海洋大学 | A kind of boiler smoke simultaneous SO_2 and NO removal device |
| CN109622070A (en) * | 2018-12-10 | 2019-04-16 | 北京科技大学 | One kind scrapping denitrating catalyst regeneration method |
| CN109622070B (en) * | 2018-12-10 | 2021-04-06 | 北京科技大学 | Method for recycling scrapped denitration catalyst |
| CN109925877A (en) * | 2019-04-03 | 2019-06-25 | 四川大学 | A kind of ceramic kiln flue gas multiple pollutant collaboration governing system |
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