CN101701716A - Quenching device for processing smoke generated by burning garbage and smoke processing system thereof - Google Patents
Quenching device for processing smoke generated by burning garbage and smoke processing system thereof Download PDFInfo
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- CN101701716A CN101701716A CN200910212696A CN200910212696A CN101701716A CN 101701716 A CN101701716 A CN 101701716A CN 200910212696 A CN200910212696 A CN 200910212696A CN 200910212696 A CN200910212696 A CN 200910212696A CN 101701716 A CN101701716 A CN 101701716A
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Abstract
The invention relates to a quenching device for processing smoke generated by burning garbage and a smoke processing system thereof. The quenching device is provided with an inlet pipeline, a quenching pipeline, an outlet pipeline, a spray cooling controller and a temperature measurer, wherein a first sprayer is installed on the inlet pipeline, and the water spraying quantity of the first sprayer is fixed; a second sprayer is installed on the outlet pipeline, and the water spraying quantity of the second sprayer is regulated and controlled by the spray cooling controller according to the temperature data fed back by the temperature measurer; the quenching pipeline is communicated with an ash bucket arranged below the quenching pipeline; the smoke processing system is provided with an acid removing tower and a bag-type dust remover; the outlet pipeline of the quenching device is communicated with an inlet end of the acid removing tower; and the temperature measurer is installed on a pipeline that the acid removing tower is connected with the bag-type dust remover. By adopting the quenching device and the smoke processing system of the invention, ash can not be deposited on an inner wall of the acid removing tower easily, the maintenance cost is lower, and the quenching device has simple installation and lower manufacturing cost.
Description
Technical field
The present invention relates to a kind of quenching apparatus and smoke processing system thereof that flue gas of refuse burning is handled that be used for, the flue gas that is mainly used in waste incineration is handled.
Background technology
At present, the most general trash processing way is the waste incineration method, burns domestic waste with incinerator, and the heat energy of generation can be used for generating electricity.But incinerator can produce a large amount of flue gases in burning process, contain sour gas (SO in the flue gas
2), dioxin organic pollutions such as HCL, HF, heavy metal (Cd, Hg, Pb etc.), directly be discharged in the atmosphere and can cause local acid rain, greenhouse effects etc., atmospheric environment is caused severe contamination.
For removing the pollutant in the flue gas, generally adopt flue gas desulfurization technique at boiler tail, adopt semi-dry process flue gas desulphurization comparatively generally to add the purification method of sack cleaner at present, reach environmental protection standard to guarantee fume emission.Traditional semi-dry method flue gas desulfurization technique process is: the outlet flue gas of incinerator enters reaction tower by pipeline, spray into atomized water on reaction tower top and reduce flue-gas temperature, reduce the generation of dioxin organic pollution, spray into slaked lime powder Ca (OH) by stationary nozzle
2, be used for acidic gas in flue gas such as SO
2, chemical reactions take place in HCL, HF etc., and sour gas is absorbed, flue gas enters sack cleaner after reaction tower comes out, after unreacted slaked lime powder enters sack cleaner, be adsorbed on the cloth bag face, can continue and the acidic gas in flue gas reaction, thereby improve deacidification efficiency.
But this technology is carried out in the reaction tower because flue gas cool-down cooling and material depickling reaction coexist, the HCL that produces in the waste incineration can with Ca (OH)
2Reaction produces calcium chloride, six hydrates are separated out in the easy at low temperatures crystallization of calcium chloride, are heated to 260 ℃ and then become white cavernous anhydrous calcium chloride, and the hygroscopy of calcium chloride is extremely strong, there being under the situation of liquid moisture very easily moisture absorption amass into powder agglomates, cause reaction tower inwall dust stratification.Also have a large amount of dust in the flue gas of waste incineration, dust has extremely strong hygroscopicity, very easily form dust stratification attached to the reaction tower inwall, every one or two months, the reaction tower inwall will form very thick dust stratification layer, must clear up and could continue to use, because the long-pending piece of dust stratification is serious, the cleaning difficulty is very big, and the cost that makes reaction tower safeguard increases.
Application number is that 200810120293.1 application for a patent for invention Publication Specification discloses a kind of semi-dry fume purifier that has independent desuperheat tower, the flue gas cooling is carried out in the desuperheat tower, depickling is reflected in the reaction tower to be carried out, solve reaction tower encrustation and sack cleaner effectively and stuck with paste the problem of bag, but the cost of manufacture of its desuperheat tower is higher, its second spray gun is arranged on the smoke inlet place of reaction tower, still has water smoke in the reaction tower, dust in flue gas is run into the water smoke deliquescence still at reaction tower inner product piece, causes the reaction tower maintenance cost to increase.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, a kind of quenching apparatus and smoke processing system thereof that flue gas of refuse burning is handled that be used for is provided, the flue gas that is used for waste incineration is handled, quenching apparatus is installed in before the extracting tower of smoke processing system, smoke processing system not only can smoke treatment make flue gas reach discharge standard, and the inwall of extracting tower is difficult for dust stratification, and maintenance cost is lower, quenching apparatus is installed simple, and manufacturing cost is lower.
The technical solution adopted for the present invention to solve the technical problems is: a kind of quenching apparatus that is used for the flue gas of refuse burning processing, be installed in before the extracting tower of flue gas of refuse burning treatment system, be used for lower the temperature cooling and flue gas carried out dedusting of the flue gas that the waste incineration process produces, be convenient to follow-up extracting tower and carry out independent deacidifying flue gas reaction, described quenching apparatus has the inlet pipeline that is used for gas approach, the chilling pipeline of flue gas cooling and dedusting and the outlet conduit that is used for exhanst gas outlet, chilling pipeline be installed between inlet pipeline and the outlet conduit and and inlet pipeline, outlet conduit is communicated with.
The thermal detector of flue-gas temperature before described quenching apparatus has the mist cooling controller and is used for detecting the sack cleaner that enters smoke processing system, the mist cooling controller is connected with the thermal detector data.
First sprayer is installed on the described inlet pipeline, and first sprayer ejection water smoke reduces flue-gas temperature, and its injection flow rate is fixed; Second sprayer is installed on the described outlet conduit, and second sprayer ejection water smoke reduces flue-gas temperature, and its injection flow rate is regulated control by the mist cooling controller according to the temperature data of thermal detector feedback.
Described chilling pipeline communicates with the ash bucket that is provided with thereunder, and the ash bucket bottom is provided with conveying worm.
A kind of the above-mentioned smoke processing system that is used for the quenching apparatus that flue gas of refuse burning handles is installed, described smoke processing system has extracting tower that is used for the deacidifying flue gas reaction and the sack cleaner that is connected the extracting tower port of export, the outlet conduit of quenching apparatus is communicated with the entrance point of extracting tower, and the thermal detector of quenching apparatus is installed on extracting tower and the pipeline that sack cleaner is connected.Described chilling pipeline communicates with the ash bucket that is provided with thereunder, and the ash bucket bottom is provided with conveying worm.The injection flow rate of second sprayer is regulated control by the mist cooling controller according to the flue-gas temperature data that enter before the sack cleaner of thermal detector feedback.Spray into slaked lime powder Ca (OH) in the extracting tower
2, be used for acidic gas in flue gas such as SO
2, the depicklings reaction takes place in HCL, HF etc.
High-temperature flue gas in the incinerator enters from inlet pipeline, and first sprayer ejection water smoke is used for the flue gas cooling, and flue-gas temperature reduces, and can reduce the generation of dioxin organic pollution.
When the chilling pipeline, flue gas flow rate reduces, the part big dust particle is because moisture absorption formation dust stratification is settled down to the ash bucket place under the chilling pipeline, the dust stratification that settles down concentrates on ash bucket, by conveying worm dust stratification is transported, can in the chilling pipeline, not form thicker dust stratification layer, reduce the maintenance cost of chilling pipeline.
Second sprayer ejection water smoke reduces flue-gas temperature, its injection flow rate is regulated control by the mist cooling controller according to the temperature data of thermal detector feedback, control flue gas before entering sack cleaner temperature at 160 ± 5 ℃, like this, flue-gas temperature is the filtrate of fragile sack cleaner not, prolongs the service life of sack cleaner.
Flue gas enters extracting tower, sprays into slaked lime powder Ca (OH) in the extracting tower
2, be used for acidic gas in flue gas such as SO
2, chemical reactions take place in HCL, HF etc., and sour gas is absorbed, and after unreacted slaked lime powder enters sack cleaner, are adsorbed on the cloth bag filtrate, can continue and the acidic gas in flue gas reaction, thereby improve deacidification efficiency.
The invention has the beneficial effects as follows: quenching apparatus of the present invention adopts the mode of first sprayer and second sprayer two-stage spraying cooling, being stained with the wall phenomenon and having guaranteed the evaporation effect that water smoke is good simultaneously of water smoke effectively avoided in the cooling of spraying in inlet pipeline and outlet conduit respectively.Adopt smoke processing system of the present invention, flue gas cooling and dedusting in the flue gas processing procedure and depickling reaction are separately carried out in quenching apparatus and extracting tower respectively, have stopped the possibility of calcium chloride absorption moisture deliquescence, the extracting tower inwall is dust stratification no longer, and the extracting tower maintenance cost reduces.In addition since in quenching apparatus sedimentation the part big dust particle, and dust stratification is transported by conveying worm, can reduce the incineration of refuse flyash amount that sack cleaner is collected like this, and the garbage flying ash that sack cleaner is collected must be handled as hazardous waste, and processing cost is higher, collecting action by quenching apparatus can reduce the flying dust processing cost, increases economic efficiency.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the scheme of installation of quenching apparatus of the present invention and smoke processing system thereof;
Wherein: 1. inlet pipeline, 2. outlet conduit, 3. chilling pipeline, 4. first sprayer, 5. second sprayer, 6. ash bucket, 7. conveying worm, 8. thermal detector, 9. mist cooling controller, 10. extracting tower, 11. sack cleaners
The specific embodiment
As shown in Figure 1, a kind of quenching apparatus that is used for the flue gas of refuse burning processing, have the inlet pipeline 1 that is used for gas approach, the chilling pipeline 3 of flue gas cooling and dedusting and the outlet conduit 2 that is used for exhanst gas outlet, chilling pipeline 3 is installed between inlet pipeline 1 and the outlet conduit 2 and with inlet pipeline 1, outlet conduit 2 and is communicated with.
Quenching apparatus has mist cooling controller 9 and thermal detector 8, and mist cooling controller 9 is connected with thermal detector 8 data.
A kind of the above-mentioned smoke processing system that is used for the quenching apparatus that flue gas of refuse burning handles is installed, have extracting tower 10 that is used for the deacidifying flue gas reaction and the sack cleaner 11 that is connected the extracting tower port of export, outlet conduit 2 is communicated with the entrance point of extracting tower 10, and thermal detector 8 is installed on extracting tower 10 and the pipeline that sack cleaner 11 is connected.Thermal detector 8 measurements enter the flue-gas temperature before the sack cleaner 11.Spray into slaked lime powder Ca (OH) in the extracting tower 10
2, be used for acidic gas in flue gas such as SO
2, chemical reactions take place in HCL, HF etc.
First sprayer, 4, the first sprayers, 4 ejection water smokes are installed on the inlet pipeline 1 reduce flue-gas temperature, its injection flow rate fixedly is controlled at 1000kg/h.
High-temperature flue gas in the incinerator enters from inlet pipeline 1, and first sprayer, 4 ejection water smokes are used for the flue gas cooling, and flue-gas temperature reduces, and can reduce the generation of dioxin organic pollution.
When chilling pipeline 3, the dust stratification that the big dust particle moisture absorption in the flue gas forms falls into ash bucket 6, by conveying worm 7 dust stratification is transported to the boiler ash bucket.
Flue gas enters extracting tower 10, sprays into slaked lime powder Ca (OH) in the extracting tower 10
2, with acidic gas in flue gas such as SO
2, the depicklings reaction takes place in HCL, HF etc., and sour gas is absorbed, and after unreacted slaked lime powder enters sack cleaner 11, is adsorbed on the filtrate, can continue and the acidic gas in flue gas reaction, thereby improve deacidification efficiency.
Adopt quenching apparatus of the present invention and smoke processing system, flue gas cooling and dedusting in the flue gas processing procedure and depickling reaction are separately carried out in quenching apparatus and extracting tower respectively, the inwall of extracting tower is difficult for dust stratification, maintenance cost is lower, and its quenching apparatus is installed simple, and manufacturing cost is lower.
Claims (4)
1. one kind is used for the quenching apparatus that flue gas of refuse burning is handled, be installed in before the extracting tower of flue gas of refuse burning treatment system, be used for lower the temperature cooling and flue gas carried out dedusting of the flue gas that the waste incineration process produces, be convenient to follow-up extracting tower and carry out independent deacidifying flue gas reaction, it is characterized in that: described quenching apparatus has the inlet pipeline (1) that is used for gas approach, the chilling pipeline (3) of flue gas cooling and dedusting and the outlet conduit (2) that is used for exhanst gas outlet, chilling pipeline (3) be installed between inlet pipeline (1) and the outlet conduit (2) and with inlet pipeline (1), outlet conduit (2) is communicated with
The thermal detector (8) of flue-gas temperature before described quenching apparatus has mist cooling controller (9) and is used for detecting the sack cleaner that enters smoke processing system, mist cooling controller (9) is connected with thermal detector (8) data,
First sprayer (4) is installed on the described inlet pipeline (1), and first sprayer (4) ejection water smoke reduces flue-gas temperature, and its injection flow rate is fixed; Second sprayer (5) is installed on the described outlet conduit (2), and second sprayer (5) ejection water smoke reduces flue-gas temperature, and its injection flow rate is regulated control by mist cooling controller (9) according to the temperature data of thermal detector (8) feedback.
2. the quenching apparatus that is used for the flue gas of refuse burning processing according to claim 1 is characterized in that: described chilling pipeline (3) communicates with the ash bucket (6) that is provided with thereunder, and ash bucket (6) bottom is provided with conveying worm (7).
3. one kind is equipped with the described smoke processing system that is used for the quenching apparatus of flue gas of refuse burning processing of claim 1, it is characterized in that: described smoke processing system has extracting tower (10) that is used for the deacidifying flue gas reaction and the sack cleaner (11) that is connected extracting tower (10) port of export, the outlet conduit of quenching apparatus (2) is communicated with the entrance point of extracting tower (10), and the thermal detector of quenching apparatus (8) is installed on extracting tower (10) and the pipeline that sack cleaner (11) is connected.
4. smoke processing system according to claim 3 is characterized in that: described chilling pipeline (3) communicates with the ash bucket (6) that is provided with thereunder, and ash bucket (6) bottom is provided with conveying worm (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102126963A CN101701716B (en) | 2009-11-16 | 2009-11-16 | Quenching device for processing smoke generated by burning garbage and smoke processing system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102126963A CN101701716B (en) | 2009-11-16 | 2009-11-16 | Quenching device for processing smoke generated by burning garbage and smoke processing system thereof |
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| CN101701716A true CN101701716A (en) | 2010-05-05 |
| CN101701716B CN101701716B (en) | 2011-11-09 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133501A (en) * | 2011-02-23 | 2011-07-27 | 魏欢 | Efficient method and device for removal of acidic gas from fume or coal gas |
| CN102814116A (en) * | 2012-08-24 | 2012-12-12 | 广州迪斯环保设备有限公司 | All-time interval rotary spray drying waste incineration flue gas purification device |
| CN103961970A (en) * | 2013-10-16 | 2014-08-06 | 泰兴电除尘设备厂有限公司 | Dry-method arsenic-recovery quenching column system for arsenic-containing smeltingflue gas |
| CN110215816A (en) * | 2019-04-24 | 2019-09-10 | 王英宾 | A method of inhibit PCDD/Fs low temperature to generate |
| CN111482073A (en) * | 2019-01-28 | 2020-08-04 | 南京定环新能源科技有限公司 | Temperature-reducing spraying system for accidents of waste incineration deacidification tower |
-
2009
- 2009-11-16 CN CN2009102126963A patent/CN101701716B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133501A (en) * | 2011-02-23 | 2011-07-27 | 魏欢 | Efficient method and device for removal of acidic gas from fume or coal gas |
| CN102814116A (en) * | 2012-08-24 | 2012-12-12 | 广州迪斯环保设备有限公司 | All-time interval rotary spray drying waste incineration flue gas purification device |
| CN103961970A (en) * | 2013-10-16 | 2014-08-06 | 泰兴电除尘设备厂有限公司 | Dry-method arsenic-recovery quenching column system for arsenic-containing smeltingflue gas |
| CN103961970B (en) * | 2013-10-16 | 2016-01-20 | 江苏蓝电环保股份有限公司 | A kind of containing arsenic flue gas during smelting dry method receipts arsenic flash cold column system |
| CN111482073A (en) * | 2019-01-28 | 2020-08-04 | 南京定环新能源科技有限公司 | Temperature-reducing spraying system for accidents of waste incineration deacidification tower |
| CN111482073B (en) * | 2019-01-28 | 2024-03-29 | 南京定环新能源科技有限公司 | Temperature-reducing spraying system for accident of waste incineration deacidification tower |
| CN110215816A (en) * | 2019-04-24 | 2019-09-10 | 王英宾 | A method of inhibit PCDD/Fs low temperature to generate |
| CN110215816B (en) * | 2019-04-24 | 2020-10-09 | 王英宾 | Method for inhibiting PCDD/Fs low-temperature generation |
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|---|---|
| CN101701716B (en) | 2011-11-09 |
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