CN205235751U - Hydrogen peroxide solution oxidation deNOx systems - Google Patents
Hydrogen peroxide solution oxidation deNOx systems Download PDFInfo
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- CN205235751U CN205235751U CN201521047914.XU CN201521047914U CN205235751U CN 205235751 U CN205235751 U CN 205235751U CN 201521047914 U CN201521047914 U CN 201521047914U CN 205235751 U CN205235751 U CN 205235751U
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- hydrogen peroxide
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Abstract
The utility model relates to a hydrogen peroxide solution oxidation deNOx systems, including the hydrogen peroxide solution holding vessel, the hydrogen peroxide solution holding vessel is continuous with the entry of hydrogen peroxide solution activation jar through the injection rate controller that links to each other with dynamic controller, the export of hydrogen peroxide solution activation jar links to each other with an entry that mixes the reactor, another entry that mixes the reactor links to each other with the boiler flue, the export links to each other with SOx/NOx control absorption tower bottom through the draught fan, the upper portion on SOx/NOx control absorption tower is equipped with spraying system, spraying system links to each other with an export of circulatory pool, an entry of circulatory pool links to each other with calcium hydrate solution pond, another entry links to each other with the bottom on SOx/NOx control absorption tower, another export links to each other with effluent disposal system, the exhanst gas outlet department on SOx/NOx control absorption tower is equipped with the NOx concentration monitor that links to each other with dynamic controller. The denitrification effect of this system is good, small investment, little, the simple process of area.
Description
Technical field
The utility model belongs to environmental protection equipment technical field, relates to a kind of denitrating system, especially relates toAnd a kind of hydrogen peroxide oxidation denitrating system.
Background technology
The a large amount of NO of ubiquity in boiler smokexDeng composition. In order to prevent the dirt to atmosphereDye, must carry out denitration processing to boiler smoke, to meet emission request.
Current denitration mode is on the market subject to the restriction of temperature in boiler type and stove, denitration efficiencyOften can not get a desired effect. And existing denitration mode investment cost is high, occupation of land faceLong-pending large, reducing agent transport inconvenience.
Meanwhile, the denitrfying agent that existing SNCR, SCR denitration adopt is ammoniacal liquor or urea,All belong to dangerous material, transport is inconvenient. And, in operating process, there is potential safety hazard, denitrationEffect does not reach expected effect.
In view of the above-mentioned technological deficiency of prior art, in the urgent need to developing a kind of novel denitration beSystem.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming existing in prior art, provides a kind of twoOxygen water oxidation and denitration system, it is less that this denitrating system is affected by boiler type and the interior temperature of stove, andSmall investment, reducing agent, water and energy resource consumption are few, and operating cost is low, and floor space is little. .
To achieve these goals, the utility model provides following technical scheme: a kind of hydrogen peroxideOxidation and denitration system, it comprises hydrogen peroxide holding vessel, it is characterized in that, described hydrogen peroxide holding vesselThe entrance that activates tank by the controlling of injecting quantity instrument and hydrogen peroxide is connected, described the controlling of injecting quantity instrument andDynamic controller is connected, and described hydrogen peroxide activates the outlet of tank and an entrance of mixing reactorBe connected, another entrance of described mixing reactor is connected with the flue of boiler, and described mixing is anti-Answer the outlet of device to be connected with the bottom on desulphurization denitration absorption tower by air-introduced machine, described desulphurization denitrationThe top on absorption tower is provided with spray system, an outlet phase of described spray system and circulatory poolConnect, an entrance of described circulatory pool is connected with aqua calcis pond, another entrance and instituteThe bottom of stating desulphurization denitration absorption tower is connected, another outlet is connected with Waste Water Treatment, instituteThe smoke outlet of stating desulphurization denitration absorption tower is also provided with and is connected with described dynamic controllerNOxConcentration monitor device.
Further, wherein, on the flue of described boiler, be provided be positioned at boiler flue gas outlet withDeduster between described mixing reactor.
Compared with existing denitrating system, hydrogen peroxide oxidation denitrating system of the present utility model hasFollowing useful technique effect:
1, can remove SO simultaneously2、NOx, the multiple pollutant such as mercury.
2, system is simple, and low-temperature operation is easy to safeguard.
3, investment cost and maintenance cost are lower.
4, adopt H2O2As denitration oxidant, can be by NOxChange into nitric acid, H2O2WashingCan not produce nitrate, avoid secondary pollution; Meanwhile, H2O2It itself is exactly a kind of Green ChemistryReagent, can not produce harm to environment.
Brief description of the drawings
Fig. 1 is the composition schematic diagram of hydrogen peroxide oxidation denitrating system of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated the content of embodimentNot as the restriction to protection domain of the present utility model.
Fig. 1 shows the composition schematic diagram of hydrogen peroxide oxidation denitrating system of the present utility model. AsShown in Fig. 1, hydrogen peroxide oxidation denitrating system of the present utility model comprises hydrogen peroxide holding vessel 1. InstituteState hydrogen peroxide holding vessel 1 for storing hydrogen peroxide.
Described hydrogen peroxide holding vessel 1 activates the entrance of tank 2 by the controlling of injecting quantity instrument 3 and hydrogen peroxideBe connected. By described the controlling of injecting quantity instrument 3, can control and be injected into described hydrogen peroxide activation tank 2The amount of interior hydrogen peroxide. Described the controlling of injecting quantity instrument 3 is connected with dynamic controller 4, described in makingThe controlling of injecting quantity instrument 3 is subject to the control of described dynamic controller 4.
Described hydrogen peroxide activates the outlet of tank 2 and an entrance of mixing reactor 6 is connected, to incite somebody to actionHydrogen peroxide is ejected in described mixing reactor 6. Another entrance of described mixing reactor 6 withThe flue of boiler is connected, so that the flue gas of boiler is incorporated in described mixing reactor 6. Like this,In described mixing reactor 6, described hydrogen peroxide can react with the NO in flue gas, generates and holdsThe nitrogen dioxide gas easily absorbing. Concrete reaction is: NO+H2O2→NO2+H2O。
The outlet of described mixing reactor 6 is the bottom with desulphurization denitration absorption tower 8 by air-introduced machine 7Be connected, the flue gas after after chemical reaction is transported to institute under the effect at described air-introduced machine 7State in desulphurization denitration absorption tower 8.
The top on described desulphurization denitration absorption tower 8 is provided with spray system 9. Described spray system 9Be connected with an outlet of circulatory pool 11, with by described spray system 9 by described circulatory pool 11In liquid be ejected in flue gas, it is reacted with nitrogen dioxide, sulfur dioxide etc. in flue gas,Reach the objects such as desulphurization denitration. Entrance of described circulatory pool 11 and aqua calcis pond 10Be connected, thereby in described circulatory pool 11, be convenient to described spray system so that aqua calcis is transported toSystem 9 sprays. The bottom on another entrance of described circulatory pool 11 and described desulphurization denitration absorption tower 8Be connected, so that the recycling of the liquid that described spray system 9 is sprayed. Described circulatory pool 11Another outlet be connected with Waste Water Treatment 12 so that by use after waste liquid placeReason, comprises precipitation, crystallization etc.
In addition, the smoke outlet on described desulphurization denitration absorption tower 8 is also provided with described dynamicThe NO that controller 4 is connectedxConcentration monitor device 13. Like this, described dynamic controller 4 can basisNOxThe monitoring result of concentration monitor device 13 is dynamically adjusted described the controlling of injecting quantity instrument 3, therebyRegulate the emitted dose of hydrogen peroxide.
Finally, in the utility model, preferably, on the flue of described boiler, be provided with and be positioned atDeduster 5 between boiler flue gas outlet and described mixing reactor 6. By described deduster 5,Can carry out dedusting to boiler smoke, and then carry out oxidation processes with hydrogen peroxide.
Hydrogen peroxide oxidation denitrating system of the present utility model sprays into H in high-temperature flue2O2, utilizeFlue hot conditions, makes H2O2Excite and produce OH and HO2Etc. strong oxidizing property free radicalGroup. For the NO in the boiler smoke after dedustingx, spray into the hydrogenperoxide steam generator of carburetion by sprayingBy the NO in flue gasxBeing oxidized to can be water-soluble or the high valence state nitrogen oxide of alkali lye. After oxidationThe desulfurization slurry of flue gas utilization wet absorption system carry out desulphurization denitration, absorb the nitrogen in flue gasOxide and sulfur dioxide, obtain clean flue gas.
Above-described embodiment of the present utility model is only by clearly illustrating that the utility model is doneFor example, and be not the restriction to embodiment of the present utility model. For affiliated fieldThose of ordinary skill, can also make that other is multi-form on the basis of the above descriptionChange or variation. Here cannot give exhaustive to all embodiments. Everyly belong to this practicalityThe apparent variation that novel technical scheme is extended out or variation are still new in this practicalityThe row of the protection domain of type.
Claims (2)
1. a hydrogen peroxide oxidation denitrating system, it comprises hydrogen peroxide holding vessel (1), it is characterized in that,Described hydrogen peroxide holding vessel (1) activates tank (2) by the controlling of injecting quantity instrument (3) and hydrogen peroxideEntrance be connected, described the controlling of injecting quantity instrument (3) is connected with dynamic controller (4), instituteThe outlet of stating hydrogen peroxide activation tank (2) is connected with an entrance of mixing reactor (6),Another entrance of described mixing reactor (6) is connected with the flue of boiler, described mixingThe outlet of reactor (6) is the end with desulphurization denitration absorption tower (8) by air-introduced machine (7)Portion is connected, and the top on described desulphurization denitration absorption tower (8) is provided with spray system (9),Described spray system (9) is connected with an outlet of circulatory pool (11), described circulatory pool(11) a entrance is connected with aqua calcis pond (10), another entrance and instituteThe bottom of stating desulphurization denitration absorption tower (8) is connected, another outlet and Waste Water Treatment(12) be connected, the smoke outlet on described desulphurization denitration absorption tower (8) be also provided withThe NOx concentration monitor device (13) that described dynamic controller (4) is connected.
2. hydrogen peroxide oxidation denitrating system according to claim 1, is characterized in that, described boilerFlue on be provided with and be positioned between boiler flue gas outlet and described mixing reactor (6)Deduster (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521047914.XU CN205235751U (en) | 2015-12-17 | 2015-12-17 | Hydrogen peroxide solution oxidation deNOx systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521047914.XU CN205235751U (en) | 2015-12-17 | 2015-12-17 | Hydrogen peroxide solution oxidation deNOx systems |
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| Publication Number | Publication Date |
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| CN205235751U true CN205235751U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521047914.XU Expired - Fee Related CN205235751U (en) | 2015-12-17 | 2015-12-17 | Hydrogen peroxide solution oxidation deNOx systems |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106345249A (en) * | 2016-08-29 | 2017-01-25 | 山东义升环保设备有限公司 | Full-automatic and low-temperature oxidative desulfurization and denitrification system |
| CN106390741A (en) * | 2016-10-20 | 2017-02-15 | 武汉华喻燃能工程技术有限公司 | H2O2-catalytic-oxidation-based system and method for removing NO, SO2 and Hg0 in flue gas |
| CN109589767A (en) * | 2018-12-17 | 2019-04-09 | 郑州大学 | The method and apparatus of pollutant integration removing in a kind of glass furnace fume |
| CN114432852A (en) * | 2020-10-16 | 2022-05-06 | 中国石油化工股份有限公司 | Processing system of nitre-containing waste gas |
-
2015
- 2015-12-17 CN CN201521047914.XU patent/CN205235751U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106345249A (en) * | 2016-08-29 | 2017-01-25 | 山东义升环保设备有限公司 | Full-automatic and low-temperature oxidative desulfurization and denitrification system |
| CN106390741A (en) * | 2016-10-20 | 2017-02-15 | 武汉华喻燃能工程技术有限公司 | H2O2-catalytic-oxidation-based system and method for removing NO, SO2 and Hg0 in flue gas |
| CN109589767A (en) * | 2018-12-17 | 2019-04-09 | 郑州大学 | The method and apparatus of pollutant integration removing in a kind of glass furnace fume |
| CN114432852A (en) * | 2020-10-16 | 2022-05-06 | 中国石油化工股份有限公司 | Processing system of nitre-containing waste gas |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20171217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |