CN102941009B - A kind of flue gas continous treatment process and device - Google Patents
A kind of flue gas continous treatment process and device Download PDFInfo
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- CN102941009B CN102941009B CN201210494135.9A CN201210494135A CN102941009B CN 102941009 B CN102941009 B CN 102941009B CN 201210494135 A CN201210494135 A CN 201210494135A CN 102941009 B CN102941009 B CN 102941009B
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- air
- flue gas
- dust
- guide duct
- filter
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Abstract
A kind of flue gas continous treatment process and device, it is characterized in that comprising guide duct, alkali lye injection apparatus, smoke filter, air-introduced machine, chimney, alkali lye injection apparatus comprises alkali lye configured pool, nozzle, guide duct comprises gas-liquid mixed conversion zone, drying section, smoke filter comprises dirt pocket, flue-dust retainer, air-purifying chamber, filter bag is provided with in dirt pocket, the mouth of filter bag is connected with air-purifying chamber, air inlet is connected with guide duct, 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, compressed air spout is provided with directly over the mouth of the filter bag of air-purifying chamber, compressed air spout is connected with compressed air source by tracheae.The present invention compared with the prior art, the solid matter content in flue gas that there is the sulfide can removed continuously in flue gas, that be discharged in air few, flue gas meets the advantage of discharge standard.
Description
Technical field
The present invention relates to a kind of fume treatment technology.
Background technology
The flue gas of existing sulfur compound generally processes by spraying into basic species in flue gas, due to the compound of basic species and stream react after generally generate solid matter, if do not adopt appropriate measures, these solid matters can with fume emission in air, although, the stable chemical performance of these solid matters, but, the solid matter be discharged in air can increase the dustiness in air, and time serious, excessive dust-laden can affect the normal breathing of people.
Summary of the invention
Solid matter content in flue gas that goal of the invention of the present invention is to provide a kind of sulfide can removed continuously in flue gas, that be discharged in air few, the flue gas continous treatment process that meets discharge standard and device.
Flue gas continous treatment process of the present invention realizes like this, comprise sulphide removal process, smoke abatement process, sulphide removal process imports in guide duct by the flue gas of high temperature, high turbulent condition, reduce the turbulent flow of flue gas, simultaneously, spray alkali lye by the nozzle being arranged on spout direction in the middle part of guide duct consistent with the flow direction of flue gas with the form of the droplet of scattering, droplet alkali lye reacts with the sulfide in flue gas in guide duct, generates Na
2s O
3, Na
2s O
4solution drips, Na
2s O
3, Na
2s O
4solution drips, remaining alkali lye droplet under fume high-temperature, be dried into Na
2s O
3, Na
2s O
4dust, NaOH dust, then, after sulphur removal containing Na
2s O
3, Na
2s O
4the flue gas of dust, NaOH dust imports smoke abatement process, in smoke abatement process, from the bottom up, from outside to inside after the several filter bags in filter filter, clean flue gas discharges air by induced draft fan, chimney, comprises Na in the flue gas filtered down
2s O
3, Na
2s O
4dust, NaOH dust are collected in the feeder below filter, drained, comprise Na when filter bag exterior surface gathers by the valvular floss hole of the band below feeder
2s O
3, Na
2s O
4after 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 filter bag is acutely expanded, shake, shaken off, recoil by the dust being gathered in filter bag exterior surface, the dust fallen is collected in the feeder below filter.Because the direction along flow of flue gas in guide duct sprays into alkali lye droplet, like this, both reduce the turbulent condition of the instability of flue gas, and meanwhile, made alkali lye droplet stably can carry out chemical reaction with the sulfide in flue gas, generate Na
2s O
3, Na
2s O
4solution drips, and then at high temperature, water evaporation forms Na
2s O
3, Na
2s O
4dust, adopts with reverse compression air cleaner filter bag, can carry out the clean of filter bag quickly and easily, ensure that carrying out continuously of fume treatment.
Here, in order to reduce turbulent flow further to improve the flow condition of flue gas, flue gas is by entering guide duct after even wind section, and even wind section is the air uniform device being densely covered with radial pore.
Flue gas apparatus for continous treatment of the present invention realizes like this, comprise the guide duct be connected with flue gas source, alkali lye injection apparatus, the smoke filter be connected with guide duct, air-introduced machine, chimney, alkali lye injection apparatus comprises alkali lye configured pool, by the nozzle that carrier pipe is connected with Alkali liquid compounding pond, nozzle is connected with compressed air source by tracheae, the spout direction of nozzle is consistent with flow of flue gas direction, guide duct comprises gas-liquid mixed conversion zone, drying section, smoke filter comprises dirt pocket, be positioned at side below dirt pocket with air inlet, bottom is provided with the flue-dust retainer of ash discharging hole, be positioned at the air-purifying chamber with pure qi (oxygen) exhaust outlet at dirt pocket top, filter bag is provided with in dirt pocket, the mouth of filter bag is connected with air-purifying chamber, air inlet is connected with guide duct, 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, compressed air spout is provided with directly over the mouth of the filter bag of air-purifying chamber, compressed air spout is connected with compressed air source by tracheae.During work, high temperature, high velocity smoke lower the turbulent flow of flue gas by the guiding of guide duct, like this, at gas-liquid mixed conversion zone, the alkali lye droplet that nozzle sprays just can be mixed in flue gas with the stable flowing consistent with flue gas flow direction equably, fast, fully react with the sulfur oxide in flue gas, generate Na
2s O
3, Na
2s O
4solution drips, thus effectively removes the strong sulfur oxide of corrosivity in flue gas, after entering drying section, and Na
2s O
3, Na
2s O
4solution drip and alkali lye droplet under the baking of the high temperature of flue gas, water flashes to steam, Na
2s O
3, Na
2s O
4,alkali is mixed in flue gas with the form of solid dust and enters smoke filter with flow of flue gas, and in smoke filter, flue dust is filtered, and falls in flue-dust retainer, has filtered the purifying smoke after flue dust and has been discharged in air through air-introduced machine, chimney.The flue dust be gathered in flue-dust retainer is drained by ash discharging hole; After filter bag exterior surface gathers flue dust, close down air-introduced machine, being blown into compressed air toward filtering sack, by the mode of blowback, the flue dust being attached to filter bag exterior surface being shaken off, thus realizing the object of cleaned filter bag.
Here, the import department of guide duct is provided with air uniform device, air uniform device is the device being densely covered with radial pore.Like this, flue gas, by after the even wind of air uniform device, can reduce its turbulent condition greatly.
The present invention compared with the prior art, the solid matter content in flue gas that there is the sulfide can removed continuously in flue gas, that be discharged in air few, flue gas meets the advantage of discharge standard.
Accompanying drawing illustrates:
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.
Detailed description of the invention:
Now in conjunction with the accompanying drawings and embodiments the present invention is described in further detail:
Flue gas continous treatment process of the present invention realizes like this, comprise sulphide removal process, smoke abatement process, sulphide removal process imports in guide duct by the flue gas of high temperature, high turbulent condition, reduce the turbulent flow of flue gas, simultaneously, spray alkali lye by the nozzle being arranged on spout direction in the middle part of guide duct consistent with the flow direction of flue gas with the form of the droplet of the diameter of scattering between 50-100 μm, droplet alkali lye reacts with the sulfide in flue gas in guide duct, generates Na
2s O
3, Na
2s O
4solution drips, Na
2s O
3, Na
2s O
4solution drips, remaining alkali lye droplet under fume high-temperature, be dried into Na
2s O
3, Na
2s O
4dust, NaOH dust, after drop evaporates completely, sulfur oxide can continue to react with solid state N aOH dust, proceeds desulphurization reaction, then, after sulphur removal containing Na
2s O
3, Na
2s O
4the flue gas of dust, NaOH dust imports smoke abatement process, in smoke abatement process, from the bottom up, from outside to inside after the several filter bags in filter filter, clean flue gas discharges air by induced draft fan, chimney, comprises Na in the flue gas filtered down
2s O
3, Na
2s O
4dust, NaOH dust are collected in the feeder below filter, drained, comprise Na when filter bag exterior surface gathers by the valvular floss hole of the band below feeder
2s O
3, Na
2s O
4after 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 filter bag is acutely expanded, shake, shaken off, recoil by the dust being gathered in filter bag exterior surface, the dust fallen is collected in the feeder below filter.
Flue gas is by entering guide duct after even wind section, and even wind section is the air uniform device being densely covered with radial pore.
Flue gas apparatus for continous treatment of the present invention realizes like this, comprise the guide duct 1 be connected with flue gas source, alkali lye injection apparatus 2, the smoke filter 3 be connected with guide duct 1, air-introduced machine 4, chimney 5, alkali lye injection apparatus 2 comprises alkali lye configured pool 6, by the nozzle 8 that carrier pipe 7 is connected with Alkali liquid compounding pond 6, nozzle 8 is connected with compressed air source 10 by tracheae 9, the spout direction of nozzle 8 is consistent with 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 dirt pocket 13 with air inlet 14, bottom is provided with the flue-dust retainer 16 being 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 top, filter bag 19 is provided with in dirt pocket 13, 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, compressed air spout 20 is provided with directly over the mouth 19a of the filter bag 19 of air-purifying chamber 13, compressed air spout 20 is connected with compressed air source 10 by tracheae 9.
The import department of guide duct 1 is provided with air uniform device 21, and air uniform device 21 is the devices being densely covered with radial pore.
Here, state that guide duct 1 one-tenth couches is arranged, and adopts the state that couches, is conducive to alkali lye droplet to flue gas flow forward, ensure that fully the contacting of alkali lye droplet and the sulfur oxide in flue gas, reaction.
Claims (3)
1. a flue gas continous treatment process, it is characterized in that comprising sulphide removal process, smoke abatement process, sulphide removal process imports in guide duct by the flue gas of high temperature, high turbulent condition, reduce the turbulent flow of flue gas, simultaneously, spray alkali lye by the nozzle being arranged on spout direction in the middle part of guide duct consistent with the flow direction of flue gas with the form of the droplet of scattering, droplet alkali lye reacts with the sulfide in flue gas in guide duct, generates Na
2sO
3, Na
2sO
4solution drips, Na
2sO
3, Na
2sO
4solution drips, remaining alkali lye droplet under fume high-temperature, be dried into Na
2sO
3, Na
2sO
4dust, NaOH dust, then, after sulphur removal containing Na
2sO
3, Na
2sO
4the flue gas of dust, NaOH dust imports smoke abatement process, in smoke abatement process, from the bottom up, from outside to inside after the several filter bags in filter filter, clean flue gas discharges air by induced draft fan, chimney, comprises Na in the flue gas filtered down
2sO
3, Na
2sO
4dust, NaOH dust are collected in the feeder below filter, drained, comprise Na when filter bag exterior surface gathers by the valvular floss hole of the band below feeder
2sO
3, Na
2sO
4after 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 filter bag is acutely expanded, shake, shaken off, recoil by the dust being gathered in filter bag exterior surface, the dust fallen is collected in the feeder below filter, flue gas is by entering guide duct after even wind section, and even wind section is the air uniform device being densely covered with radial pore.
2. flue gas continous treatment process according to claim 1, is characterized in that nozzle sprays alkali lye with the form of the fogdrop diameter of scattering between 50-100 μm.
3. a flue gas apparatus for continous treatment, it is characterized in that comprising the guide duct be connected with flue gas source, alkali lye injection apparatus, the smoke filter be connected with guide duct, air-introduced machine, chimney, alkali lye injection apparatus comprises alkali lye configured pool, by the nozzle that carrier pipe is connected with Alkali liquid compounding pond, nozzle is connected with compressed air source by tracheae, the spout direction of nozzle is consistent with flow of flue gas direction, guide duct comprises gas-liquid mixed conversion zone, drying section, smoke filter comprises dirt pocket, be positioned at side below dirt pocket with air inlet, bottom is provided with the flue-dust retainer of ash discharging hole, be positioned at the air-purifying chamber with pure qi (oxygen) exhaust outlet at dirt pocket top, filter bag is provided with in dirt pocket, the mouth of filter bag is connected with air-purifying chamber, air inlet is connected with guide duct, 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, compressed air spout is provided with directly over the mouth of the filter bag of air-purifying chamber, compressed air spout is connected with compressed air source by tracheae, the import department of guide duct is provided with air uniform device, air uniform device is the device being densely covered with radial 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 CN102941009A (en) | 2013-02-27 |
| CN102941009B true CN102941009B (en) | 2015-09-09 |
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Family Applications (1)
| 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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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 |
|---|---|
| CN102941009A (en) | 2013-02-27 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
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 |
Granted publication date: 20150909 Termination date: 20181128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |