CN203470007U - Catalyst regeneration equipment of SCR (selective catalytic reduction) denitration system - Google Patents
Catalyst regeneration equipment of SCR (selective catalytic reduction) denitration system Download PDFInfo
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- CN203470007U CN203470007U CN201320544748.9U CN201320544748U CN203470007U CN 203470007 U CN203470007 U CN 203470007U CN 201320544748 U CN201320544748 U CN 201320544748U CN 203470007 U CN203470007 U CN 203470007U
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- catalyst
- rinse bath
- cleaning tank
- regeneration equipment
- catalyst regeneration
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Abstract
The utility model discloses catalyst regeneration equipment of an SCR (selective catalytic reduction) denitration system. The catalyst regeneration equipment comprises an air compressor, a cleaning tank, an ultrasonic vibrator, a heater, a hot-blast furnace, a drainage pipeline and a tank cover, wherein a high-pressure nozzle is arranged on the air compressor; the ultrasonic vibrator is arranged at the lower end of the cleaning tank; the heater is arranged in the bottom layer of the cleaning tank and is used for heating liquid in the cleaning tank; the hot-blast furnace is connected into the cleaning tank through a guide pipe; the tank cover is a movable sealed cover; the drainage pipeline is provided with a control valve and is arranged at the lower end of the cleaning tank. The catalyst regeneration equipment of the SCR denitration system can sweep a deactivated catalyst by using the air compressor and finish water washing, chemical treatment and activation treatment processes by using the cleaning tank, the heater can be used for adjusting the liquid temperature of a solution during chemical treatment to improve the chemical reaction efficiency, and the hot-blast furnace is used for drying the catalyst, so that a regenerated catalyst is obtained conveniently and the regeneration treatment efficiency of the catalyst is improved.
Description
Technical field
The utility model relates to denitration technology field, particularly relates to a kind of SCR denitrating system catalyst regeneration equipment.
Background technology
Selective catalytic reduction denitration technology, through years of researches and industrial practice, has formed with TiO
2v for carrier
2o
5base industrial catalyst, comprises V
2o
5/ TiO
2, V
2o
5/ TiO
2-SiO
2, V
2o
5-WO
3/ TiO
2and V
2o
5-MoO3/TiO
2, its operating temperature is between 280-420 ℃, and denitration efficiency can reach more than 85%, can effectively reduce discharged nitrous oxides, meets the environmental requirement of increasingly stringent, is widely applied abroad.The Recent Progresses In The Development of low temperature SCR denitration catalyst is very fast in recent years, has formed and take active carbon as carrier, with V
2o
5, Fe
2o
3and MnO
xdeng the various catalyst that are active component, in order to meet more and more stricter NO
xdischarge standard, SCR denitration technology has become the mainstream technology that thermal power plant's nitrogen oxide is controlled.
Catalyst is the core of the SCR of power plant flue gas denitrification system, and it accounts for 1/3 of its investment.The selection of catalyst structure and composition is most important to power plant safety economical operation, and in running, and the periodic replacement expense needing due to the inefficacy of its catalyst accounts for the major part of operating cost.
Catalysqt deactivation is a complicated physical and chemical process; in flue gas, solid particle can and stop up catalyst erosive wear; composition in flue gas and the one-tenth branch in solid particle are to the toxic effect of catalyst; the utility model has been studied the impact on catalyst activity of potassium, lead, arsenic and phosphorus in SO2 in smoke components and H2O, solid particle; therefore; be necessary easily to cause for elements such as alkali metal a large amount of in changeable ature of coal, alkaline-earth metal, P the situation of SCR catalyst poisoning, the catalyst after SCR denitration inactivation is regenerated.
Utility model content
Based on this, the utility model provides a kind of SCR denitrating system catalyst regeneration equipment, can obtain expediently regenerated catalyst, has improved catalyst regeneration process efficiency.
A SCR denitrating system catalyst regeneration equipment, comprising: air compressor, rinse bath, ultrasonic vibrator, heater, hot-blast stove, drainage pipeline, groove lid;
Described air compressor is provided with high pressure nozzle; Described ultrasonic oscillator is located at described rinse bath lower end; Described heater is located in the bottom of rinse bath, for liquid in rinse bath is heated; Described hot-blast stove is linked into rinse bath inside by conduit, and described groove lid is movable sealing lid; Described drainage pipeline, with control valve, is located at rinse bath lower end.
Above-mentioned SCR denitrating system catalyst regeneration equipment, by air compressor, decaying catalyst is purged, utilize rinse bath to complete washing, chemical treatment, activation processing process, heater can regulate solution fluid temperature in chemical treatment, improve chemical reaction efficiency, by hot-blast stove, catalyst is dried to processing, thereby obtains expediently regenerated catalyst, improved catalyst regeneration process efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of the SCR denitrating system catalyst regeneration equipment of an embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of SCR denitrating system catalyst regeneration equipment of the present utility model is described in detail.
Fig. 1 is the schematic cross-section of the SCR denitrating system catalyst regeneration equipment of an embodiment, comprising: air compressor 01, rinse bath 02, ultrasonic vibrator 03, heater 04, hot-blast stove 05, drainage pipeline 06, groove lid 07.
Described air compressor 01 is provided with high pressure nozzle; Described ultrasonic oscillator is located at described rinse bath 02 lower end; Described heater 04 is located in the bottom of rinse bath 02, for the interior liquid of rinse bath 02 is heated; Described hot-blast stove 05 is linked into rinse bath 02 inside by conduit, and described groove lid 07 is movable sealing lid; Described drainage pipeline 06, with control valve, is located at rinse bath 02 lower end.
Preferably, the sidewall of described rinse bath 02 inner chamber, drainage pipeline 06 part in rinse bath 02 inner chamber covers resistant material.
Preferably, the sidewall of described rinse bath 02 inner chamber adopts ceramic material to make.
SCR denitrating system catalyst regeneration equipment of the present utility model, air compressor 01 can purge decaying catalyst, rinse bath 02 can be used for washing, chemical treatment, activation processing process, the solution fluid temperature of rinse bath 02 when heater 04 can regulate chemical treatment, improve chemical reaction efficiency, hot-blast stove 05 can provide hot blast to rinse bath 02, and the catalyst in groove is dried to processing, thereby obtain expediently regenerated catalyst, improved catalyst regeneration process efficiency.
Apply SCR denitrating system catalyst regeneration equipment of the present utility model, carrying out catalyst regeneration process process can be as follows:
The flying dust covering on the catalyst surface that a, use compressed air purging need to be regenerated and catalyst duct.By the catalyst of needs regeneration, can be cellular V
2o
5/ TiO
2catalyst, utilizes the high pressure nozzle of air compressor 01 directly to purge the flying dust of catalyst covering, and this process can be carried out on a setting platform.First purge the flying dust of catalyst surface, after purging to be confirmed is clean, by the skin in catalyst duct, successively toward internal layer, purge flying dust, until all surface has purged.Can in purge, avoid flying dust on purging the impact of part, improve purging efficiency.
B, catalyst is placed in to rinse bath 02, imports deionized water and soak catalyst, start ultrasonator, remove the sand and dust of physical clogging in catalyst duct and be deposited on the dissolved matter of catalyst surface.Through after ultrasonic cleaning, it is cleaner that the catalyst duct of obstruction is all cleaned.
C, in rinse bath 02, import acid solution, until soak catalyst, by heater 04 regulator solution temperature.By using chemical treatment poisoned catalyst, the poisoning element in catalyst is removed.According to the research to ature of coal, the more potassium containing in boiler smoke, soda metal, alkali-metal existence greatly reduces the quantity of the Bronsted acidic site of one of SCR catalyst activity position, and weaken the acidity of Bronsted acidic site, thereby reduction catalyst activity, is removed by chemical treatment in this case.In chemical treating process, the time of immersion is greater than 2 hours
D, regenerated liquid is imported to rinse bath 02, catalyst is activated.Specifically utilizing regenerated liquid to soak activates catalyst, due to catalyst in use, active component can because with flue gas in the element interactions such as Cl and form volatile matter and run off, thereby active component concentration is reduced, in addition, abovementioned steps also can cause while processing that the part of active component runs off, and therefore catalyst is activated, thereby improves catalyst activity concentration of component.
E, 05 pair of catalyst of startup hot-blast stove are dried processing.Specifically utilize high-temperature gas to catalyst being dried to processing, by obtaining the catalyst of regeneration after dry processing.
SCR denitrating system catalyst regeneration process method of the present utility model, by 01 pair of decaying catalyst of air compressor, purge, utilize rinse bath 02 to complete washing, chemical treatment, activation processing process, heater 04 can regulate solution fluid temperature in chemical treatment, improve chemical reaction efficiency, by 05 pair of catalyst of hot-blast stove, be dried processing, thereby can obtain expediently regenerated catalyst, improved catalyst regeneration process efficiency.
The utility model provides a set of station boiler catalyst regeneration equipment, for the regeneration of SCR denitration decaying catalyst provides a kind of solution route.Catalysqt deactivation is a complicated physical and chemical process, and in flue gas, solid particle can and stop up catalyst erosive wear, the composition in flue gas and the one-tenth branch in solid particle are to the toxic effect of catalyst.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (3)
1. a SCR denitrating system catalyst regeneration equipment, is characterized in that, comprising: air compressor, rinse bath, ultrasonic vibrator, heater, hot-blast stove, drainage pipeline, groove lid;
Described air compressor is provided with high pressure nozzle; Described ultrasonic oscillator is located at described rinse bath lower end; Described heater is located in the bottom of rinse bath, for liquid in rinse bath is heated; Described hot-blast stove is linked into rinse bath inside by conduit, and described groove lid is movable sealing lid; Described drainage pipeline, with control valve, is located at rinse bath lower end.
2. SCR denitrating system catalyst regeneration equipment according to claim 1, is characterized in that, the sidewall of described rinse bath inner chamber, the drainage pipeline part in rinse bath inner chamber covers resistant material.
3. SCR denitrating system catalyst regeneration equipment according to claim 1, is characterized in that, the sidewall of described rinse bath inner chamber adopts ceramic material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320544748.9U CN203470007U (en) | 2013-09-03 | 2013-09-03 | Catalyst regeneration equipment of SCR (selective catalytic reduction) denitration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320544748.9U CN203470007U (en) | 2013-09-03 | 2013-09-03 | Catalyst regeneration equipment of SCR (selective catalytic reduction) denitration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203470007U true CN203470007U (en) | 2014-03-12 |
Family
ID=50218425
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|---|---|---|---|
| CN201320544748.9U Expired - Fee Related CN203470007U (en) | 2013-09-03 | 2013-09-03 | Catalyst regeneration equipment of SCR (selective catalytic reduction) denitration system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464221A (en) * | 2013-09-03 | 2013-12-25 | 广东电网公司电力科学研究院 | SCR (Selective Catalytic Reduction) denitration system catalyst regeneration equipment and regeneration technology method |
| CN103877996A (en) * | 2014-04-11 | 2014-06-25 | 武汉梅斯特工程技术有限公司 | Regeneration method of SCR (Selective Catalytic Reduction) catalyst |
| CN106694467A (en) * | 2017-01-09 | 2017-05-24 | 安徽元琛环保科技股份有限公司 | Cleaning device and method and regeneration method for waste denitration catalyst |
| CN109261221A (en) * | 2018-11-08 | 2019-01-25 | 中触媒新材料股份有限公司 | A method of for removing reductive organic matter in vanadium silver molybdophosphate catalyst |
| CN114314928A (en) * | 2022-01-04 | 2022-04-12 | 湖南烯富环保科技有限公司 | Integrated production line and method for removing chloride ions and regenerating dechlorination agent from dechlorination slag |
-
2013
- 2013-09-03 CN CN201320544748.9U patent/CN203470007U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464221A (en) * | 2013-09-03 | 2013-12-25 | 广东电网公司电力科学研究院 | SCR (Selective Catalytic Reduction) denitration system catalyst regeneration equipment and regeneration technology method |
| CN103464221B (en) * | 2013-09-03 | 2015-11-18 | 广东电网公司电力科学研究院 | SCR denitration system catalyst regeneration equipment and process of regenerating |
| CN103877996A (en) * | 2014-04-11 | 2014-06-25 | 武汉梅斯特工程技术有限公司 | Regeneration method of SCR (Selective Catalytic Reduction) catalyst |
| CN103877996B (en) * | 2014-04-11 | 2016-05-25 | 武汉梅斯特工程技术有限公司 | A kind of renovation process of SCR catalyst |
| CN106694467A (en) * | 2017-01-09 | 2017-05-24 | 安徽元琛环保科技股份有限公司 | Cleaning device and method and regeneration method for waste denitration catalyst |
| CN109261221A (en) * | 2018-11-08 | 2019-01-25 | 中触媒新材料股份有限公司 | A method of for removing reductive organic matter in vanadium silver molybdophosphate catalyst |
| CN114314928A (en) * | 2022-01-04 | 2022-04-12 | 湖南烯富环保科技有限公司 | Integrated production line and method for removing chloride ions and regenerating dechlorination agent from dechlorination slag |
| CN114314928B (en) * | 2022-01-04 | 2023-09-08 | 湖南烯富环保科技有限公司 | Integrated production line and method for chloride ion removal and chlorine removal slag regeneration chlorine removal agent |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 |
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