CN202860406U - SCR flue gas denitrating device for glass kiln - Google Patents
SCR flue gas denitrating device for glass kiln Download PDFInfo
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- CN202860406U CN202860406U CN 201220386394 CN201220386394U CN202860406U CN 202860406 U CN202860406 U CN 202860406U CN 201220386394 CN201220386394 CN 201220386394 CN 201220386394 U CN201220386394 U CN 201220386394U CN 202860406 U CN202860406 U CN 202860406U
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Abstract
The utility model relates to an SCR (Selective Catalytic Reduction) flue gas denitrating device for a glass kiln. The SCR flue gas denitrating device comprises an inlet flue, a discharging compressor, an ammonia storage tank, an ammonia evaporator, an ammonia buffer tank, a dilution fan, a diluent air heater, an ammonia/air mixer, an ammonia injection grid, a flow equalizing guide plate, an SCR reactor inlet expansion joint, an SCR reactor, a rectifier, a standby catalyst layer, a reaction catalyst layer, an SCR reactor outlet expansion joint and a flue outlet. The ammonia injection grid and the flow equalizing guide plate are arranged in the flue; one end of the ammonia/air mixer is connected with the ammonia buffer tank, while the other end of the ammonia/air mixer is connected with the heated diluent air; the SCR reactor is provided with inlet and outlet expansion joints; a rectifier grid is arranged at the inlet end; and the standby catalyst layer of the SCR reactor and the reaction catalyst layer are arranged at the middle part thereof. The device is capable of evenly distributing ammonia and flue gas; and under the action of the catalysts, the catalytic reduction reaction is more thorough, therefore, the denitration efficiency is improved and the ammonia escape rate is reduced.
Description
The utility model title
A kind of SCR equipment for denitrifying flue gas for glass furnace
Technical field
The utility model belongs to the Air Pollution Control field of environmental pollution improvement, relates to a kind of SCR equipment for denitrifying flue gas for glass furnace.
Background technology
At present, China's discharged nitrous oxides constantly increases, and has accelerated the deterioration of global climate, has brought harm for people's life.For this reason, China begins to strengthen control NO
XThe discharging dynamics, the corresponding appearance of relevant criterion.Glass furnace is another main source of discharged nitrous oxides, its smoke characteristic NO
XContent is high, is not easy to process.Selective catalytic reduction (SCR) is considered to the most ripe denitration technology of present technology, be widely used at Thermal Power Generation Industry, but still there are a lot of deficiencies in the application in glass industry.Traditional NO
XThe control technology denitration efficiency is low, easily causes secondary pollution.For the problem of above existence, a kind of SCR equipment for denitrifying flue gas for glass furnace is proposed, will have greatly improved to denitration effect.
Summary of the invention
Purport of the present utility model is to propose a kind of SCR denitrification apparatus for glass furnace, and it can make flue gas and reducing agent be uniformly mixed, and stronger anti-SO is arranged
2Oxidability improves denitration efficiency.
A kind of SCR equipment for denitrifying flue gas for glass furnace of the utility model comprises flue, discharging compressor, ammonia storage tank, ammonia evaporator, ammonia surge tank, dilution air, diluent air heater, ammonia/air mixer, ammonia-spraying grid, current-sharing deflector, SCR reactor inlet expansion joint, SCR reactor, rectifier, preparing catalyst layer, catalysts layer, SCR reactor outlet expansion joint, flue outlet; Be provided with ammonia-spraying grid and current-sharing deflector in the described flue; Described ammonia/air mixer one end links to each other with the ammonia surge tank, the other end with the heating after diluent air link to each other; Described SCR reactor is provided with the entrance and exit expansion joint, and arrival end is provided with flow straightening grid, and the middle part is provided with preparing catalyst layer and catalysts layer.
Described flue entrance place is provided with ammonia-spraying grid, and afterbody is provided with the current-sharing deflector.
It is 5% gas that described ammonia/air mixer is mixed into the ammonia volume fraction to ammonia and diluent air.
Described SCR reactor is provided with the entrance and exit expansion joint, and described expansion joint is provided with Internal baffle.
Described SCR reactor middle part is provided with catalyst layer, and described catalyst layer is comprised of a plurality of catalyst modules.
Described current-sharing deflector is comprised of a plurality of spacing distribution guide plates.
Described catalyst module is by the anti-SO of polylith
2The catalyst of oxidation forms.
The current-sharing deflector that the flue afterbody of this device is provided with has certain current-sharing and the effect of water conservancy diversion; Mixed flue gas under the effect of current-sharing deflector and rectifier, makes the velocity of flue gas flow field more reasonable, makes smoke distribution more even, and SCR reactor inlet velocity deviation is less than 10%, NH
3And NO
XThe concentration deviation is less than 5%.In sum, this device can make denitration reaction more abundant, reduces the escape of ammonia, improves denitration efficiency.
Description of drawings
Fig. 1 is the SCR equipment for denitrifying flue gas structural representation for glass furnace.
Fig. 2 is current-sharing deflector perspective view.
Among the figure, 1-glass furnace, 2-waste-heat recovery device, 3-electric cleaner, the 4-flue, 5-discharging compressor, 6-ammonia storage tank, 7-ammonia evaporator, 8-ammonia surge tank, 9-dilution air, 10-diluent air heater, 11-ammonia/air mixer, the 12-ammonia-spraying grid, 13-current-sharing deflector, 14-SCR reactor inlet expansion joint, the 15-SCR reactor, 16-rectifier, 17-preparing catalyst layer, 18-catalysts layer, 19-SCR reactor outlet expansion joint, 20-flue outlet.
The specific embodiment
Advance-go on foot the embodiment of explanation the utility model device below in conjunction with accompanying drawing.
Fig. 1 is the embodiment that the utility model is used for the SCR equipment for denitrifying flue gas of glass furnace.As shown in Figure 1, the utility model is used for the SCR equipment for denitrifying flue gas of glass furnace, comprises flue, discharging compressor, ammonia storage tank, ammonia evaporator, ammonia surge tank, dilution air, diluent air heater, ammonia/air mixer, ammonia-spraying grid, current-sharing deflector, SCR reactor inlet expansion joint, SCR reactor, rectifier, preparing catalyst layer, catalysts layer, SCR reactor outlet expansion joint, flue outlet; The arrival end of flue is provided with ammonia-spraying grid, so that ammonia and flue gas obtain certain mixing; The flue afterbody is provided with 3 to 8 interblocks apart from the current-sharing deflector that distributes, and mixed flue gas is carried out current-sharing and water conservancy diversion; Ammonia/air mixer one end links to each other with the ammonia surge tank, and the other end links to each other with diluent air, and it is 5% gas that ammonia and air are mixed into the ammonia volume fraction; The SCR reactor is provided with the entrance and exit expansion joint, reduces displacement and effectively absorbs vibration, and arrival end is provided with flow straightening grid, and the middle part is provided with anti-SO
2The catalyst layer that oxidisability is strong.
Current-sharing deflector perspective view as shown in Figure 2, the flue afterbody is provided with the current-sharing deflector that spacing distributes, and forms by 3 to 8, and the two ends of each current-sharing deflector are fixed on the flue inwall in the mode of welding, when the flue size is larger, can establish connector at the middle part.
Claims (7)
1. SCR equipment for denitrifying flue gas that is used for glass furnace, it is characterized in that, comprise flue, discharging compressor, ammonia storage tank, ammonia evaporator, ammonia surge tank, dilution air, diluent air heater, ammonia/air mixer, ammonia-spraying grid, current-sharing deflector, SCR reactor inlet expansion joint, SCR reactor, rectifier, preparing catalyst layer, catalysts layer, SCR reactor outlet expansion joint, flue outlet; Be provided with ammonia-spraying grid and current-sharing deflector in the described flue; Described ammonia/air mixer one end links to each other with the ammonia surge tank, the other end with the heating after diluent air link to each other; Described SCR reactor is provided with the entrance and exit expansion joint, and arrival end is provided with flow straightening grid, and the middle part is provided with preparing catalyst layer and catalysts layer.
2. the SCR equipment for denitrifying flue gas for glass furnace according to claim 1 is characterized in that, described flue entrance place is provided with ammonia-spraying grid, and afterbody is provided with the current-sharing deflector.
3. the SCR equipment for denitrifying flue gas for glass furnace according to claim 1 is characterized in that, it is 5% gas that described ammonia/air mixer is mixed into the ammonia volume fraction to ammonia and diluent air.
4. the SCR equipment for denitrifying flue gas for glass furnace according to claim 1 is characterized in that, described SCR reactor is provided with the entrance and exit expansion joint, and described expansion joint is provided with Internal baffle.
5. the SCR equipment for denitrifying flue gas for glass furnace according to claim 1 is characterized in that, described SCR reactor middle part is provided with catalyst layer, and described catalyst layer is comprised of a plurality of catalyst modules.
6. the SCR equipment for denitrifying flue gas for glass furnace according to claim 2 is characterized in that, described current-sharing deflector is comprised of a plurality of spacing distribution guide plates.
7. the SCR equipment for denitrifying flue gas for glass furnace according to claim 5 is characterized in that, described catalyst module is by the anti-SO of polylith
2The catalyst that oxidisability is strong forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386394 CN202860406U (en) | 2012-08-06 | 2012-08-06 | SCR flue gas denitrating device for glass kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386394 CN202860406U (en) | 2012-08-06 | 2012-08-06 | SCR flue gas denitrating device for glass kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202860406U true CN202860406U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220386394 Expired - Lifetime CN202860406U (en) | 2012-08-06 | 2012-08-06 | SCR flue gas denitrating device for glass kiln |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103816785A (en) * | 2014-02-24 | 2014-05-28 | 张亚玉 | Flue gas purifier and purifying method thereof |
| CN104056541A (en) * | 2014-02-08 | 2014-09-24 | 上海泰欣环保工程有限公司 | Denitration system combining SNCR with low-temperature SCR and used for household garbage incinerator |
| CN104524939A (en) * | 2014-12-12 | 2015-04-22 | 秦皇岛杰伯特环境科技有限公司 | Glass denitrification system based on SNCR technology |
| CN104941446A (en) * | 2015-07-13 | 2015-09-30 | 无锡华光新动力环保科技股份有限公司 | Ammonia spraying grating anti-blocking device for SCR denitration system |
| CN106640291A (en) * | 2016-12-08 | 2017-05-10 | 青岛双瑞海洋环境工程股份有限公司 | Ship waste gas denitration system |
| CN108854530A (en) * | 2018-05-23 | 2018-11-23 | 清华大学盐城环境工程技术研发中心 | A kind of wide load SCR denitration device of middle low temperature and method of denitration |
| CN109663495A (en) * | 2017-10-16 | 2019-04-23 | 中国石油化工股份有限公司 | Coal-burning boiler SCR denitration process and its ammonia/air mixer |
| CN110252138A (en) * | 2019-07-25 | 2019-09-20 | 河北威达蓝海环保科技有限公司 | A kind of device slowing down SCR Faveolate denitration catalyst deactivation rate |
| CN115015151A (en) * | 2022-06-02 | 2022-09-06 | 大唐南京环保科技有限责任公司 | Ammonia spraying system and method for flue gas denitration evaluation device |
-
2012
- 2012-08-06 CN CN 201220386394 patent/CN202860406U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056541A (en) * | 2014-02-08 | 2014-09-24 | 上海泰欣环保工程有限公司 | Denitration system combining SNCR with low-temperature SCR and used for household garbage incinerator |
| CN103816785A (en) * | 2014-02-24 | 2014-05-28 | 张亚玉 | Flue gas purifier and purifying method thereof |
| CN104524939A (en) * | 2014-12-12 | 2015-04-22 | 秦皇岛杰伯特环境科技有限公司 | Glass denitrification system based on SNCR technology |
| CN104941446A (en) * | 2015-07-13 | 2015-09-30 | 无锡华光新动力环保科技股份有限公司 | Ammonia spraying grating anti-blocking device for SCR denitration system |
| CN106640291A (en) * | 2016-12-08 | 2017-05-10 | 青岛双瑞海洋环境工程股份有限公司 | Ship waste gas denitration system |
| CN109663495A (en) * | 2017-10-16 | 2019-04-23 | 中国石油化工股份有限公司 | Coal-burning boiler SCR denitration process and its ammonia/air mixer |
| CN108854530A (en) * | 2018-05-23 | 2018-11-23 | 清华大学盐城环境工程技术研发中心 | A kind of wide load SCR denitration device of middle low temperature and method of denitration |
| CN108854530B (en) * | 2018-05-23 | 2021-07-20 | 清华大学盐城环境工程技术研发中心 | Medium-low temperature wide-load SCR denitration device and denitration method |
| CN110252138A (en) * | 2019-07-25 | 2019-09-20 | 河北威达蓝海环保科技有限公司 | A kind of device slowing down SCR Faveolate denitration catalyst deactivation rate |
| CN115015151A (en) * | 2022-06-02 | 2022-09-06 | 大唐南京环保科技有限责任公司 | Ammonia spraying system and method for flue gas denitration evaluation device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |