CN203030172U - Flue gas purification device - Google Patents
Flue gas purification device Download PDFInfo
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- CN203030172U CN203030172U CN2012206127619U CN201220612761U CN203030172U CN 203030172 U CN203030172 U CN 203030172U CN 2012206127619 U CN2012206127619 U CN 2012206127619U CN 201220612761 U CN201220612761 U CN 201220612761U CN 203030172 U CN203030172 U CN 203030172U
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- liquid
- waste liquid
- outlet
- shower nozzle
- water
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to a purification device which comprises an oxidant jetting device for mixing an oxidant into low-temperature flue gas of a preheater, wherein the oxidant converts NOx and SO2 in the flue gas into a water-soluble high-valence compound; an inlet of a dust arrester device for dust removal is connected with a flue gas outlet; an outlet of the dust arrester device is communicated with the lower part of a spraying tower; a standard flue gas outlet is formed at the top of the spraying tower; one or more purified water spray heads are arranged at the middle part of the spraying tower; a waste liquid is formed after the high-valence compound is dissolved in water; a waste liquid collecting tank is arranged at the bottom of the spraying tower; a liquid outlet of the waste liquid collecting tank is communicated with a biological response pot by a liquid delivery system; a biological response liquid containing bacteria is filled in the biological response pot; and the bacteria act on the high-valence compound in the waste liquid to generate thallus derivatives. The purification device adopts an oxidation and then biochemical treatment mode, NOx and SO2 in the flue gas serve as the thallus derivatives to be output after secondary conversion, and no greenhouse gas is exhausted and no catalyst escapes in the whole process, so that secondary pollution cannot be caused.
Description
Technical field
The utility model relates to a kind of flue gas processing device, is specifically related to a kind of smoke eliminator that can be used for denitration, desulfurization and decarburization.
Background technology
Be nitrogen, sulphur, the oxycarbide (NO that contains high concentration in the cement plant, power plant, iron and steel enterprise, district heating system discharged flue gas of fuel with fire coal, fuel oil, biomass fuel
x, SO
2), both do not met more and more stricter environmental requirement, also ecological environment and health have been caused direct harm, it is the effective way of control discharge of poisonous waste that the flue gas that produces after therefore adopting suitable manner to fuel combustion is handled.
With nitrogen oxide NO
xBe example, denitrating flue gas processing method commonly used at present mainly comprises oxidizing process and reducing process, and purpose is with the NO in the flue gas by denitration
xRemove, to reach standard-required.Oxidizing process is that oxidant is added in the flue gas, makes NO
xBe converted into water-soluble higher nitrogen oxides, add antalkali again and make chemical fertilizer; Its shortcoming is the operating cost height, and the quality of chemical fertilizer is bad.
Reducing process is common SCR and SNCR, its principle is under the effect of catalyst, by spraying into reducing agent (such as ammoniacal liquor, urea) with the NO in the flue gas
xBe reduced into the N of nontoxic pollution-free
2And H
2O.Its shortcoming is to have the escape of ammonia when adopting ammoniacal liquor, cause secondary pollution; When using urea, can increase CO
2Discharging; These two kinds of method denitration efficiencies are lower, and operating cost is than higher.
Summary of the invention
The utility model is at the deficiencies in the prior art, proposed a kind ofly have that efficient height, cost are low, the flue gas purifying method of the denitration of pollution-free characteristics, desulfurization, decarburization, dedusting; Smoke eliminator according to the said method structure.
The technical solution of the utility model is as follows:
A kind of smoke eliminator is characterized in that: it comprises that described oxidant is with the NO in the flue gas for the oxidant injection device of oxidant being sneaked into the preheater low-temperature flue gas
x, SO
2Change into water-soluble high price compound; The entrance that is used for the dust arrester installation of dedusting links to each other with exhanst gas outlet, and the outlet of described dust arrester installation is connected with the bottom of spray column; The top of described spray column is exhanst gas outlet up to standard, the middle part of described spray column arranges the one or more shower nozzle of purifying waste water, the water-soluble back of described high price compound forms waste liquid, the bottom of described spray column is the waste collection groove, and the liquid outlet of described waste collection groove is connected with biological reactor by transfusion system; Dress contains the biological respinse liquid of bacterium in the described biological reactor, and the high price compound effects in described bacterium and the described waste liquid generates the thalline derivative.
Described transfusion system comprises delivery pump, waste liquid shower nozzle and overflow pipe, and described waste liquid enters described biological reactor by described delivery pump by described waste collection groove, and unnecessary described waste liquid is got back to the middle part of described spray column by described waste liquid shower nozzle; When the liquid level of the described waste liquid in the described waste collection groove was higher than the overfall of described overflow pipe, described waste liquid directly entered described biological reactor by described overflow pipe.
The position that arranges of described waste liquid shower nozzle is lower than the described shower nozzle of purifying waste water, and the position that arranges of the overfall of described overflow pipe is lower than described waste liquid shower nozzle.
The derivative gathering-device is set in the described biological reactor, and described thalline derivative is attached on the derivative gathering-device and reclaims.
Described biological reactor bottom precipitation has the dust-laden slurries, the dust-laden slurries outlet of described biological respinse pot bottom connects solid-liquid separator by delivery pump, the liquid outlet of described solid-liquid separator connects waste water processing station and nanometer hydrotreater successively, and the decontaminating liquid of described nanometer processor output enters described spray column by the described shower nozzle of purifying waste water.
The outlet of described dust arrester installation is arranged on above, described the purifying waste water below the shower nozzle of liquid level of described waste collection groove.
The outlet of described dust arrester installation be arranged on the liquid level of described waste collection groove above, below the described waste liquid shower nozzle.
The outlet of described dust arrester installation arranges gas analysis metering instrument and thermometric measuring cell, and the top exit of described spray column arranges gas analysis metering instrument, the Monitoring Data input control system of described gas analysis metering instrument and thermometric measuring cell.
Also comprise a water replanishing device, described water replanishing device is imported the described shower nozzle of purifying waste water with clean water.
Described spray column is vertical or horizontal.
Technique effect of the present utility model is as follows:
A kind of smoke eliminator of the present utility model uses the mode of initial oxidation-back biochemical treatment, with the NO in the flue gas
x, SO
2Transform the back as thalline derivative output by secondary, whole process does not have greenhouse gas emission and catalyst to escape, and therefore can not cause secondary pollution.Because the high price compound very easily generates acid waste liquid with water, therefore the abundant harmful substance in the filtering flue gas has higher gas cleaning efficient.
Because the utility model uses bacterium that waste liquid is carried out biological cleaning, the thalline derivative of producing also can be used for other field, and part has remedied the expense in gas cleaning, has therefore reduced the gas cleaning cost comprehensively.
The spray column bottom connects biological reactor by transfusion system in the smoke eliminator of the present utility model, waste liquid in the spray column can be entered carry out biochemical reaction in the biological reactor, the flow of waste liquid is controlled, has guaranteed that the biochemical reaction in the biological reactor fully carries out.And transfusion system can prevent the excessive generation overflow of waste liquid in the waste collection groove.
The dust-laden slurries of biological reactor bottom precipitation can be handled by Separation of Solid and Liquid, and water is participated in the gas cleaning process through entering again in the spray column after purifying as hydraulic fluid, have both guaranteed the water supply of spray column, have saved water resource again.
Description of drawings
Fig. 1 is smoke eliminator structural representation of the present utility model
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Specific embodiment described herein is only in order to explaining the utility model, and is not used in restriction the utility model.
Be example with the denitrification process, flue gas purifying method of the present utility model mainly comprises flue gas preliminary treatment link, flue gas spray and waste collection link, biological denitrification link and wastewater treatment and purification utilization link,
1) flue gas preliminary treatment link adds oxidant in the low-temperature flue gas of preheater, as potassium permanganate, make NO in the flue gas
xBe converted into water-soluble high price nitride;
2) flue gas spray and waste collection link, the high price nitride mixes with water in flue gas spray and waste collection link, forms the waste liquid of high price nitride;
3) biological denitrification link by the effect of the high price nitride in bacterium and the waste liquid, generates free of contamination thalline derivative;
4) wastewater treatment and purification utilization link are recycled the thalline derivative as derivative, are purified liquid after being purified by the isolated waste water of dust-laden slurries remaining in the waste liquid, and decontaminating liquid joins flue gas spray link and carries out recycling.
As shown in Figure 1, be example by present common cement industry, smoke eliminator of the present utility model comprises oxidant injection device 1, dust arrester installation 2, spray column 3, biological reactor 4, water treatment facilities at least.Oxidant injection device 1 comprises oxidant storage tank 11 and delivery pump 12, and delivery pump 12 is with the low-temperature flue gas of the injection of the oxidant in the oxidant storage tank 11 preheater, and oxidant is with the NO in the flue gas
xChange into water-soluble high price nitride.Dust arrester installation 2 comprises dust-precipitator 21, UTILIZATION OF VESIDUAL HEAT IN device 22 and air-introduced machine 23, and UTILIZATION OF VESIDUAL HEAT IN device 22 1 ends connect the gas outlet of kiln tail, and the other end connects the air inlet of dust-precipitator 21, and the gas outlet of dust-precipitator 21 connects the bottom of spray column 3 by air-introduced machine 23.After flue gas process dust-precipitator 21 dedustings through 22 coolings of UTILIZATION OF VESIDUAL HEAT IN device, enter the bottom of spray column 3 like this.
The top of spray column 3 is exhanst gas outlet 31 up to standard, the middle part arranges the one or more shower nozzle 32 of purifying waste water, the bottom is waste collection groove 33, flue gas high price nitride in the motion process that the bottom makes progress mixes the back with the water of shower nozzle 32 ejections of purifying waste water and forms the waste liquid that contains acid nitride, and waste liquid enters under the gravity effect of self in the waste collection groove 33 of bottom.Removing high price nitride flue gas is afterwards discharged by exhanst gas outlet 31 up to standard as flue gas up to standard.Spray column 3 can be height greater than horizontal greater than height of the vertical or width of width, and when spray column 3 when being horizontal, the shower nozzle 32 of purifying waste water also is set to transversely arranged adaptively.Inevitably have low amounts of water in the liquefaction process of high price nitride and discharge with flue gas up to standard, so need water replanishing device 34 to carry out moisturizing, pure water directly sprays into spray column 3 through the shower nozzle 32 of purifying waste water.
The liquid outlet of waste collection groove 33 is connected with biological reactor 4 by transfusion system, transfusion system comprises delivery pump 61, waste liquid shower nozzle 62 and overflow pipe 63, waste liquid enters biological reactor 4 by delivery pump 61 by waste collection groove 33, and unnecessary waste liquid is got back to the middle part of spray column 3 by waste liquid shower nozzle 62.When the liquid level of the waste liquid in the waste collection groove 33 was higher than the overfall of overflow pipe 63, waste liquid directly entered biological reactor 4 by overflow pipe 63.Wherein, the position that arranges of waste liquid shower nozzle 62 is lower than the shower nozzle 32 of purifying waste water, and the position that arranges of the overfall of overflow pipe 63 is lower than waste liquid shower nozzle 62.
Dress contains the biological respinse liquid of bacterium in the biological reactor 4, and the acid nitride effect in bacterium and the waste liquid generates the thalline derivative.The thalline derivative is reclaimed by derivative gathering-device 41 as derivative, biological reactor 4 bottoms connect the water inlet of waste water processing station 51 by delivery pump 42, the dust-laden slurries carry out Separation of Solid and Liquid in water treatment station 51, the water of separating enters in the nanometer hydrotreater 52 and purifies, and the decontaminating liquid that obtains enters spray column 3 by the shower nozzle 32 of purifying waste water.
The outlet of dust-precipitator 21 arranges the gas analysis metering instrument 7 that the composition of flue gas and content are detected, to the thermometric measuring cell 8 that temperature and pressure detects, the exhanst gas outlet 31 at spray column 3 tops arranges the gas analysis metering instrument 7 that composition and content to flue gas up to standard detect.The Monitoring Data contrast of Monitoring Data input control system 9, the two gas analyses metering instrument 7 of gas analysis metering instrument 7 and thermometric measuring cell 8 can draw denitrating flue gas efficient, operational factor changes and other need relatively reach the parameter of control.The workflow of oxidant injection device 1, dust arrester installation 2, spray column 3, biological reactor 4, water treatment facilities and transfusion system is controlled by control system 9, as startup opportunity of the flow of the injection reality of oxidant and injection rate, transfusion system delivery pump 61 and waste liquid shower nozzle 62 and overflow pipe 63 etc.
Should be pointed out that the above specific embodiment can make those skilled in the art more fully understand the utility model and create, create but limit the utility model never in any form.Therefore; although this specification is created the utility model with reference to drawings and Examples and is had been described in detail; but; those skilled in the art are to be understood that; still can create the utility model and make amendment or be equal to replacement; in a word, all do not break away from technical scheme and the improvement thereof of the spirit and scope of the utility model creation, and it all should be encompassed in the utility model and create in the middle of the protection domain of patent.
Claims (10)
1. smoke eliminator, it is characterized in that: it comprises that described oxidant is with the NO in the flue gas for the oxidant injection device of oxidant being sneaked into the preheater low-temperature flue gas
x, SO
2Change into water-soluble high price compound; The entrance that is used for the dust arrester installation of dedusting links to each other with exhanst gas outlet, and the outlet of described dust arrester installation is connected with the bottom of spray column; The top of described spray column is exhanst gas outlet up to standard, the middle part of described spray column arranges the one or more shower nozzle of purifying waste water, the water-soluble back of described high price compound forms waste liquid, the bottom of described spray column is the waste collection groove, and the liquid outlet of described waste collection groove is connected with biological reactor by transfusion system; Dress contains the biological respinse liquid of bacterium in the described biological reactor, and the high price compound effects in described bacterium and the described waste liquid generates the thalline derivative.
2. a kind of smoke eliminator as claimed in claim 1, it is characterized in that: described transfusion system comprises delivery pump, waste liquid shower nozzle and overflow pipe, described waste liquid enters described biological reactor by described delivery pump by described waste collection groove, and unnecessary described waste liquid is got back to the middle part of described spray column by described waste liquid shower nozzle; When the liquid level of the described waste liquid in the described waste collection groove was higher than the overfall of described overflow pipe, described waste liquid directly entered described biological reactor by described overflow pipe.
3. a kind of smoke eliminator as claimed in claim 2, it is characterized in that: the position that arranges of described waste liquid shower nozzle is lower than the described shower nozzle of purifying waste water, and the position that arranges of the overfall of described overflow pipe is lower than described waste liquid shower nozzle.
4. a kind of smoke eliminator as claimed in claim 1 is characterized in that: the derivative gathering-device is set in the described biological reactor.
5. as claim 1 or 2 or 3 or 4 described a kind of smoke eliminators, it is characterized in that: described biological reactor bottom precipitation has the dust-laden slurries, the dust-laden slurries outlet of described biological respinse pot bottom connects solid-liquid separator by delivery pump, the liquid outlet of described solid-liquid separator connects waste water processing station and nanometer hydrotreater successively, and the decontaminating liquid of described nanometer processor output enters described spray column by the described shower nozzle of purifying waste water.
6. a kind of smoke eliminator as claimed in claim 1 is characterized in that: the outlet of described dust arrester installation is arranged on above, described the purifying waste water below the shower nozzle of liquid level of described waste collection groove.
7. as claim 2 or 3 described a kind of smoke eliminators, it is characterized in that: the outlet of described dust arrester installation be arranged on the liquid level of described waste collection groove above, below the described waste liquid shower nozzle.
8. as claim 1 or 2 or 3 or 6 described a kind of smoke eliminators, it is characterized in that: the outlet of described dust arrester installation arranges gas analysis metering instrument and thermometric measuring cell, the top exit of described spray column arranges gas analysis metering instrument, the Monitoring Data input control system of described gas analysis metering instrument and thermometric measuring cell.
9. a kind of smoke eliminator as claimed in claim 1, it is characterized in that: also comprise a water replanishing device, described water replanishing device is imported the described shower nozzle of purifying waste water with clean water.
10. as claim 1 or 2 or 3 or 4 or 6 or 9 described a kind of smoke eliminators, it is characterized in that: described spray column is vertical or horizontal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206127619U CN203030172U (en) | 2012-11-19 | 2012-11-19 | Flue gas purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206127619U CN203030172U (en) | 2012-11-19 | 2012-11-19 | Flue gas purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203030172U true CN203030172U (en) | 2013-07-03 |
Family
ID=48682316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206127619U Expired - Fee Related CN203030172U (en) | 2012-11-19 | 2012-11-19 | Flue gas purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203030172U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989280A (en) * | 2012-11-19 | 2013-03-27 | 高玉宗 | Smoke purification method and smoke purification device |
| CN104941420A (en) * | 2014-06-25 | 2015-09-30 | 青岛绿洲源环境工程有限公司 | Flue gas desulfurization comprehensive treatment system and method |
-
2012
- 2012-11-19 CN CN2012206127619U patent/CN203030172U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989280A (en) * | 2012-11-19 | 2013-03-27 | 高玉宗 | Smoke purification method and smoke purification device |
| CN102989280B (en) * | 2012-11-19 | 2015-09-02 | 高玉宗 | A kind of flue gas purifying method and purifier |
| CN104941420A (en) * | 2014-06-25 | 2015-09-30 | 青岛绿洲源环境工程有限公司 | Flue gas desulfurization comprehensive treatment system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130703 Termination date: 20141119 |
|
| EXPY | Termination of patent right or utility model |