CN102941009A - Method and device for continuously treating flue gas - Google Patents
Method and device for continuously treating flue gas Download PDFInfo
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- CN102941009A CN102941009A CN2012104941359A CN201210494135A CN102941009A CN 102941009 A CN102941009 A CN 102941009A CN 2012104941359 A CN2012104941359 A CN 2012104941359A CN 201210494135 A CN201210494135 A CN 201210494135A CN 102941009 A CN102941009 A CN 102941009A
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- flue gas
- air
- dust
- filter
- guide duct
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Abstract
The invention relates to a method and a device for continuously treating flue gas. The device is characterized by comprising an air guide pipe, an alkaline liquid injection device, a flue gas filter, an induced draft fan and a smoke pipe, the alkaline liquid injection device comprises an alkaline liquid configuration tank and a nozzle, the air guide pipe comprises a gas-liquid mixed reaction section and a drying section, the flue gas filter comprises a dust chamber, a flue-dust retainer and a clean gas chamber, a filter bag is arranged in the dust chamber, an opening of the filter bag is communicated with the clean gas chamber, a gas inlet is communicated with the air guide pipe, a clean gas exhaust port is communicated with an air inlet of the induced draft fan, an air outlet of the induced draft fan is communicated with the smoke pipe, and a compressed air jet is arranged right above the opening of the filter bag of the clean gas chamber and is connected with a compressed air source through an air pipe. Compared with the prior art, the device has the advantages that sulfide in the flue gas can be continuously removed, the content of solid matters in the flue gas emitted into atmosphere is low, and the flue gas meets the emission standard.
Description
Technical field:
The present invention relates to a kind of flue gas treatment technology.
Background technology:
The flue gas of existing sulfur compound is generally processed by spray into basic species in flue gas, because the general solid matter that generates after the reaction of the compound of basic species and stream, if do not adopt appropriate measures, these solid matters can be with fume emission in atmosphere, although, the stable chemical performance of these solid matters, but, the solid matter that is discharged in the atmosphere can increase airborne dustiness, and when serious, excessive dust-laden can affect people's normal breathing.
Summary of the invention:
Goal of the invention of the present invention be to provide a kind of can remove continuously sulfide in the flue gas, be discharged into solid matter content flue gas continous treatment process few, that meet discharge standard and device in the flue gas in the atmosphere.
Flue gas continous treatment process of the present invention is to realize like this, comprise sulphide removal process, smoke abatement process, the sulphide removal process is that the flue gas of high temperature, high turbulent condition is imported in the guide duct, reduce the turbulent flow of flue gas, simultaneously, spray alkali lye by the spout direction nozzle consistent with the flow direction of flue gas that is arranged on guide duct middle part with the form of the droplet of scattering, droplet alkali lye in guide duct with flue gas in the sulfide reaction, generation Na
2O
3, Na
2O
4Solution drips, Na
2O
3, Na
2O
4Solution drips, remaining alkali lye droplet under fume high-temperature, be dried into Na
2O
3, Na
2O
4Then dust, NaOH dust, contain Na after the sulphur removal
2O
3, Na
2O
4The flue gas of dust, NaOH dust imports the smoke abatement process, in the smoke abatement process, after filtering through several filter bags in the filter from the bottom up, from outside to inside, clean flue gas is discharged atmosphere by induced draft fan, chimney, comprises Na in the flue gas that filters down
2O
3, Na
2O
4Dust, NaOH dust are collected in the feeder below the filter, and the valvular floss hole of being with below feeder is drained, and comprises Na when the filter bag outer surface gathers
2O
3, Na
2O
4Behind the dust of dust, NaOH dust, close induced draft fan, compressed air sprays into sack by the spout above the sack that is positioned at each filter bag, form reverse high velocity air, and make filter bag acutely expand, shake, the dust that is gathered in the filter bag outer surface is shaken, recoils, and the dust that falls is collected in the feeder below the filter.Because the direction along flow of flue gas sprays into the alkali lye droplet in guide duct, like this, both reduced the unsettled turbulent condition of flue gas, simultaneously, make the alkali lye droplet can be stably with flue gas in sulfide carry out chemical reaction, generate Na
2O
3, Na
2O
4Solution drips, and then at high temperature, the water evaporation forms Na
2O
3, Na
2O
4Dust adopts with reverse compression air cleaner filter bag, can carry out quickly and easily the cleaning of filter bag, has guaranteed carrying out continuously of flue gas processing.
Here, in order further to reduce turbulent flow to improve the flow condition of flue gas, flue gas enters guide duct after sparing the wind section, and even wind section is to be densely covered with the radially air uniform device of pore.
Flue gas apparatus for continous treatment of the present invention is to realize like this, comprise the guide duct that links to each other with the flue gas source, the alkali lye injection apparatus, the smoke filter that links to each other with guide duct, air-introduced machine, chimney, the alkali lye injection apparatus comprises the alkali lye configured pool, the nozzle that links to each other with the Alkali liquid compounding pond by carrier pipe, nozzle links to each other with compressed air source by tracheae, the spout direction of nozzle is consistent with the flow of flue gas direction, guide duct comprises the gas-liquid mixed conversion zone, drying section, smoke filter comprises dirt pocket, be positioned at side below the dirt pocket with air inlet, the bottom is provided with the flue-dust retainer of ash discharging hole, be positioned at the air-purifying chamber with the pure qi (oxygen) exhaust outlet at dirt pocket top, in dirt pocket, be provided with filter bag, the mouth of filter bag is connected with air-purifying chamber, air inlet is connected with guide duct, the pure qi (oxygen) exhaust outlet is connected with the air inlet of air-introduced machine, the air outlet of air-introduced machine is connected with chimney, be provided with the compressed air spout directly over the mouth of the filter bag of air-purifying chamber, the compressed air spout links to each other with compressed air source by tracheae.During work, high temperature, high speed flue gas lower the turbulent flow of flue gas by the guiding of guide duct, like this, at the gas-liquid mixed conversion zone, the alkali lye droplet that nozzle sprays just can be blended in the flue gas equably, fast with stable flow consistent with flue gas flow direction, fully react with the sulfur oxide in the flue gas, generate Na
2O
3, Na
2O
4Solution drips, thereby effectively removes the strong sulfur oxide of corrosivity in the flue gas, enter drying section after, Na
2O
3, Na
2O
4Solution drip and the alkali lye droplet under the baking of the high temperature of flue gas, water flashes to steam, Na
2O
3, Na
2O
4,Alkali is mixed in the flue gas with the form of solid dust and enters smoke filter with flow of flue gas, and flue dust is filtered in smoke filter, falls in the flue-dust retainer, has filtered the purifying smoke behind the flue dust and has been discharged in the air through air-introduced machine, chimney.The flue dust that is gathered in the flue-dust retainer is drained by ash discharging hole; After the filter bag outer surface gathers flue dust, close down air-introduced machine, be blown into compressed air toward filtering sack, the flue dust shake that the mode by blowback will be attached to the filter bag outer surface falls, thereby realizes the purpose of cleaning filter bag.
Here, be provided with air uniform device in the import department of guide duct, air uniform device is to be densely covered with the radially device of pore.Like this, flue gas can reduce its turbulent condition greatly by behind the even wind of air uniform device.
The present invention compared with the prior art, have the sulfide that can remove continuously in the flue gas, be discharged into solid matter content in the flue gas in the atmosphere few, flue gas meets the advantage of discharge standard.
Description of drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of guide duct part;
Fig. 3 is the structural representation of smoke filter;
Fig. 4 is the structural representation of filter bag notch portion;
Fig. 5 is the lateral plan of air uniform device.
The specific embodiment:
Now in conjunction with the accompanying drawings and embodiments the present invention is done and describes in further detail:
Flue gas continous treatment process of the present invention is to realize like this, comprise sulphide removal process, smoke abatement process, the sulphide removal process is that the flue gas of high temperature, high turbulent condition is imported in the guide duct, reduce the turbulent flow of flue gas, simultaneously, spray alkali lye by the spout direction nozzle consistent with the flow direction of flue gas that is arranged on guide duct middle part with the form of the droplet of diameter between 50-100 μ m of scattering, droplet alkali lye in guide duct with flue gas in the sulfide reaction, generation Na
2O
3, Na
2O
4Solution drips, Na
2O
3, Na
2O
4Solution drips, remaining alkali lye droplet under fume high-temperature, be dried into Na
2O
3, Na
2O
4Dust, NaOH dust, after drop evaporated fully, sulfur oxide can continue to react with solid state N aOH dust, proceeds desulphurization reaction, then, contained Na after the sulphur removal
2O
3, Na
2O
4The flue gas of dust, NaOH dust imports the smoke abatement process, in the smoke abatement process, after filtering through several filter bags in the filter from the bottom up, from outside to inside, clean flue gas is discharged atmosphere by induced draft fan, chimney, comprises Na in the flue gas that filters down
2O
3, Na
2O
4Dust, NaOH dust are collected in the feeder below the filter, and the valvular floss hole of being with below feeder is drained, and comprises Na when the filter bag outer surface gathers
2O
3, Na
2O
4Behind the dust of dust, NaOH dust, close induced draft fan, compressed air sprays into sack by the spout above the sack that is positioned at each filter bag, form reverse high velocity air, and make filter bag acutely expand, shake, the dust that is gathered in the filter bag outer surface is shaken, recoils, and the dust that falls is collected in the feeder below the filter.
Flue gas enters guide duct after sparing the wind section, even wind section is to be densely covered with the radially air uniform device of pore.
Flue gas apparatus for continous treatment of the present invention is to realize like this, comprise the guide duct 1 that links to each other with the flue gas source, alkali lye injection apparatus 2, the smoke filter 3 that links to each other with guide duct 1, air-introduced machine 4, chimney 5, alkali lye injection apparatus 2 comprises alkali lye configured pool 6, the nozzle 8 that links to each other with Alkali liquid compounding pond 6 by carrier pipe 7, nozzle 8 links to each other with compressed air source 10 by tracheae 9, the spout direction of nozzle 8 is consistent with the flow of flue gas direction, guide duct 1 comprises gas-liquid mixed conversion zone 11, drying section 12, smoke filter 3 comprises dirt pocket 13, be positioned at side below the dirt pocket 13 with air inlet 14, the bottom is provided with the flue-dust retainer 16 with valvular ash discharging hole 15, be positioned at the air-purifying chamber 18 with pure qi (oxygen) exhaust outlet 17 at dirt pocket 13 tops, in dirt pocket 13, be provided with filter bag 19, the mouth 19a of filter bag 19 is connected with air-purifying chamber 13, air inlet 14 is connected with guide duct 1, pure qi (oxygen) exhaust outlet 17 is connected with the air inlet of air-introduced machine 4, the air outlet of air-introduced machine 4 is connected with chimney 5, be provided with compressed air spout 20 directly over the mouth 19a of the filter bag 19 of air-purifying chamber 13, compressed air spout 20 links to each other with compressed air source 10 by tracheae 9.
Import department at guide duct 1 is provided with air uniform device 21, and air uniform device 21 is to be densely covered with the radially device of pore.
Here, the state that couches is adopted in 1 one-tenth state setting that couches of guide duct, be conducive to the alkali lye droplet flue gas is flowed forward, has guaranteed fully the contacting of sulfur oxide, reaction in alkali lye droplet and the flue gas.
Claims (5)
1. flue gas continous treatment process, it is characterized in that comprising sulphide removal process, smoke abatement process, the sulphide removal process is that the flue gas of high temperature, high turbulent condition is imported in the guide duct, reduce the turbulent flow of flue gas, simultaneously, spray alkali lye by the spout direction nozzle consistent with the flow direction of flue gas that is arranged on guide duct middle part with the form of the droplet of scattering, droplet alkali lye in guide duct with flue gas in the sulfide reaction, generation Na
2O
3, Na
2O
4Solution drips, Na
2O
3, Na
2O
4Solution drips, remaining alkali lye droplet under fume high-temperature, be dried into Na
2O
3, Na
2O
4Then dust, NaOH dust, contain Na after the sulphur removal
2O
3, Na
2O
4The flue gas of dust, NaOH dust imports the smoke abatement process, in the smoke abatement process, after filtering through several filter bags in the filter from the bottom up, from outside to inside, clean flue gas is discharged atmosphere by induced draft fan, chimney, comprises Na in the flue gas that filters down
2O
3, Na
2O
4Dust, NaOH dust are collected in the feeder below the filter, and the valvular floss hole of being with below feeder is drained, and comprises Na when the filter bag outer surface gathers
2O
3, Na
2O
4Behind the dust of dust, NaOH dust, close induced draft fan, compressed air sprays into sack by the spout above the sack that is positioned at each filter bag, form reverse high velocity air, and make filter bag acutely expand, shake, the dust that is gathered in the filter bag outer surface is shaken, recoils, and the dust that falls is collected in the feeder below the filter.
2. flue gas continous treatment process according to claim 1 is characterized in that entering guide duct after flue gas is by even wind section, and even wind section is to be densely covered with the radially air uniform device of pore.
3. flue gas continous treatment process according to claim 1 and 2 is characterized in that nozzle sprays alkali lye with the form of fogdrop diameter between 50-100 μ m of scattering.
4. flue gas apparatus for continous treatment, it is characterized in that comprising the guide duct that links to each other with the flue gas source, the alkali lye injection apparatus, the smoke filter that links to each other with guide duct, air-introduced machine, chimney, the alkali lye injection apparatus comprises the alkali lye configured pool, the nozzle that links to each other with the Alkali liquid compounding pond by carrier pipe, nozzle links to each other with compressed air source by tracheae, the spout direction of nozzle is consistent with the flow of flue gas direction, guide duct comprises the gas-liquid mixed conversion zone, drying section, smoke filter comprises dirt pocket, be positioned at side below the dirt pocket with air inlet, the bottom is provided with the flue-dust retainer of ash discharging hole, be positioned at the air-purifying chamber with the pure qi (oxygen) exhaust outlet at dirt pocket top, in dirt pocket, be provided with filter bag, the mouth of filter bag is connected with air-purifying chamber, air inlet is connected with guide duct, the pure qi (oxygen) exhaust outlet is connected with the air inlet of air-introduced machine, the air outlet of air-introduced machine is connected with chimney, be provided with the compressed air spout directly over the mouth of the filter bag of air-purifying chamber, the compressed air spout links to each other with compressed air source by tracheae.
5. flue gas apparatus for continous treatment according to claim 4 is characterized in that being provided with air uniform device in the import department of guide duct, and air uniform device is to be densely covered with the radially device of pore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210494135.9A CN102941009B (en) | 2012-11-28 | 2012-11-28 | A kind of flue gas continous treatment process and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210494135.9A CN102941009B (en) | 2012-11-28 | 2012-11-28 | A kind of flue gas continous treatment process and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102941009A true CN102941009A (en) | 2013-02-27 |
| CN102941009B CN102941009B (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210494135.9A Expired - Fee Related CN102941009B (en) | 2012-11-28 | 2012-11-28 | A kind of flue gas continous treatment process and device |
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| CN (1) | CN102941009B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2014975A (en) * | 1978-02-24 | 1979-09-05 | Rockwell International Corp | Sequential removal of sulphur oxides from hot gases |
| US4504451A (en) * | 1983-07-14 | 1985-03-12 | Dec International, Inc. | Dry scrubbing oxides and particulate contaminants from hot gases |
| US4610849A (en) * | 1981-06-30 | 1986-09-09 | Proctor & Schwartz, Inc. | Reactor for dry flue gas desulfurization |
| WO1991002583A1 (en) * | 1989-08-22 | 1991-03-07 | ABB Fläkt AB | Method for reducing wear on nozzles or other supply means |
| CN1368898A (en) * | 1999-08-12 | 2002-09-11 | 株式会社荏原制作所 | Method and apparatus for treating exhaust gas |
| CN203108414U (en) * | 2012-11-28 | 2013-08-07 | 佛山市合璟节能环保科技有限公司 | Continuous flue gas treatment device |
-
2012
- 2012-11-28 CN CN201210494135.9A patent/CN102941009B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2014975A (en) * | 1978-02-24 | 1979-09-05 | Rockwell International Corp | Sequential removal of sulphur oxides from hot gases |
| US4610849A (en) * | 1981-06-30 | 1986-09-09 | Proctor & Schwartz, Inc. | Reactor for dry flue gas desulfurization |
| US4504451A (en) * | 1983-07-14 | 1985-03-12 | Dec International, Inc. | Dry scrubbing oxides and particulate contaminants from hot gases |
| WO1991002583A1 (en) * | 1989-08-22 | 1991-03-07 | ABB Fläkt AB | Method for reducing wear on nozzles or other supply means |
| CN1368898A (en) * | 1999-08-12 | 2002-09-11 | 株式会社荏原制作所 | Method and apparatus for treating exhaust gas |
| CN203108414U (en) * | 2012-11-28 | 2013-08-07 | 佛山市合璟节能环保科技有限公司 | Continuous flue gas treatment device |
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| Publication number | Publication date |
|---|---|
| CN102941009B (en) | 2015-09-09 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Address after: 528300, Guangdong Foshan District, Shunde City, Chencun Town, long industrial park, ring Town, No. 7, foundation stainless steel factory Patentee after: FOSHAN HAPPY KING ENERGY SAVING & ENVIRONMENTAL PROTECTION TECHNOLOGY JOINT STOCK CO., LTD. Address before: Chancheng Bitang 528000 west two street in Guangdong city of Foshan province No. 8 Creative Industry Park 28 building 3 floor Patentee before: Foshan Hejing Environmental Protection Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20181128 |