CN203886406U - Tail gas purification device of circulating fluid bed garbage incinerator - Google Patents
Tail gas purification device of circulating fluid bed garbage incinerator Download PDFInfo
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- CN203886406U CN203886406U CN201420286362.7U CN201420286362U CN203886406U CN 203886406 U CN203886406 U CN 203886406U CN 201420286362 U CN201420286362 U CN 201420286362U CN 203886406 U CN203886406 U CN 203886406U
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- spray pipe
- injection spray
- fluid bed
- desulfurizing tower
- circulating fluid
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Abstract
The utility model discloses a tail gas purification device of a circulating fluid bed garbage incinerator. The tail gas purification device comprises a garbage incinerator, a smoke gas inlet, a desulfurizing tower, a smoke outlet channel, an active carbon material bin, a bag-type dust collector, a lime slaker, spray pipes, a fluidizing bottom bin, an induced draft fan and a chimney, wherein the first-stage spray pipe, the second-stage spray pipe and an active carbon filter layer are sequentially arranged in the desulfurizing tower from bottom to top. After smoke gas is purified by adopting the tail gas purification device disclosed by the utility model, the removal ratio of SO2 contained in the smoke gas is more than 80%, the removal ratio of HCL is more than 92%, the purification rate of dust is more than 99.9%, the removal ratio of NOX is 40%, fly ash is recycled through a circulating system, so that the utilization ratio of a desulfurizing agent is effectively enhanced, and the usage amount of the desulfurizing agent is reduced. Compared with the traditional smoke gas purification device, the tail gas purification device disclosed by the utility model achieves more thorough removal effect on acid gases, dioxin and heavy metals and is easy to popularize and use.
Description
Technical field
The utility model belongs to refuse treatment plant technical field, is specifically related to a kind of exhaust gas cleaner of circulating fluid bed garbage furnace.
Background technology
Municipal solid wastes incineration power generation has become in more developed country, the world that domestic waste is innoxious, the important technical of minimizing, recycling treatment, and circulating fluid bed garbage furnace is used widely in Waste Firing Power Generation Technique.But in the flue gas of circulating fluid bed garbage furnace afterbody, contain the multiple pollutants such as a large amount of sour gas, heavy metal, bioxin and organic matter, need to could discharge through strict purification.Existing flue gas purifying method mainly contains dry method, semidry method and Wet flue gas purifier, wherein the cost of investment of flue gas clenear by wet is higher, and the waste water producing easily causes secondary pollution because containing heavy metal element, dry method flue gas purifier is by the entrance toward sack cleaner, to spray slaked lime powder to realize evolution, though it does not produce waste water, but the utilization rate of desulfurizing agent is lower, and can not guarantee desulfurization degree, therefore semidry method is with the most use in current smoke eliminator.And conventional semi-dry fume purifier comprises desulfurizing tower and sack cleaner at present, the flue gas that circulating fluid bed garbage furnace produces enters in desulfurizing tower, sprays into respectively desulfurizing agent and water in desulfurizing tower, removes HCl, SO in flue gas
2deng sour gas, in exhaust gases passes, add active carbon to remove bioxin and heavy metal in Refuse Incineration Process again, filtration by sack cleaner subsequently filters down flue dust, product and unreacted desulfurizing agent, with flying dust, as dangerous material, be cured landfill disposal, adopt this device mainly to have following problem: 1. calcium hydroxide and water spray in desulfurizing tower simultaneously, calcium hydroxide can not fully mix with water, and the time of flue gas and reactive desulfurizing agent is shorter, and desulfuration efficiency is low; 2. from the flying dust that sack cleaner is collected, also contain a large amount of unreacted calcium hydroxides, the utilization rate that directly landfill easily causes the wasting of resources and desulfurizing agent compared with low, consumption is large, cost is high; 3. the dust in flue gas only depends on from spraying active carbon powder in smoke-outlet flue, efficiency of dust collection is low, and the sowing amount of active carbon is difficult to control, the flying dust concentration in flue gas is high simultaneously, makes the resistance of sack cleaner larger, the serious wear of sack cleaner, the service life of filter bag is short.Therefore, develop that a kind of cost is low, desulfurization, dedusting thoroughly, can effectively improve desulfurizing agent service efficiency, reduce the consumption of desulfurizing agent, can meet current exhaust gas cleaner energy-conservation, the circulating fluid bed garbage furnace that reduces discharging is completely desirability.
Summary of the invention
The purpose of this utility model is to provide that a kind of cost is low, desulfurization, dedusting thoroughly, can effectively improve desulfurizing agent service efficiency, reduce the consumption of desulfurizing agent, can meet the exhaust gas cleaner of current energy-conservation, the circulating fluid bed garbage furnace that reduces discharging completely.
The purpose of this utility model is to realize like this, comprise incinerator, gas approach, desulfurizing tower, smoke-outlet flue, active carbon feed bin, sack cleaner, limeslaker, injection spray pipe, fluidisation Lower Hold, air-introduced machine and chimney, the flue gas that described incinerator produces passes through gas approach successively, desulfurizing tower, smoke-outlet flue, after sack cleaner, under the traction of air-introduced machine, from chimney, discharge, injection spray pipe comprises that peace turns one-level injection spray pipe and the secondary injection spray pipe of annular in desulfurizing tower, in desulfurizing tower, be furnished with successively from top to bottom one-level injection spray pipe, secondary injection spray pipe and activated carbon filter layer, the discharging opening of desulfurizing tower bottom is connected with fluidisation Lower Hold by coarse fodder conveying worm, fluidisation Lower Hold is connected with sack cleaner bottom, fluidisation Lower Hold is communicated with hybrid humidifier, limeslaker is connected with secondary injection spray pipe with one-level injection spray pipe by hybrid humidifier, running water inlet is installed on hybrid humidifier.
The utility model by hybrid humidifier by calcium hydroxide, circulation flying dust and water mixes, after humidification, spray into again in desulfurizing tower, effectively extended the time of desulphurization reaction, improved the efficiency of desulfurization, flying dust is by circulatory system recycling, effectively raise the utilization rate of desulfurizing agent, the use amount of the desulfurizing agent reducing, and in desulfurizing tower, arranged activated carbon filter layer, can remove the most flying dusts in flue gas, effectively slow down the wearing and tearing of flying dust to sack cleaner, extended the service life of cloth bag.Meanwhile, adopt this purifier purifying smoke, the SO in flue gas
2the removal efficiency removal efficiency that is greater than 80%, HCL be greater than 92%, the purifying rate of dust is greater than 99.9%, NO
xremoval efficiency is 40%, and this device that the removal effect of sour gas, bioxin and heavy metal is compared to existing smoke eliminator is comparatively thorough, be easy to promote the use of.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram;
In figure: 1-gas approach, 2-incinerator, 3-desulfurizing tower, 4-smoke-outlet flue, 5-active carbon feed bin, 6-frequency conversion screw(-type) feeder, 7-sack cleaner, 8-air-introduced machine, 9-chimney, 10-goes out ash silo pump, 11-fluidisation Lower Hold, 12-revolving valve, 13-running water inlet, 14-limeslaker, 15-secondary injection spray pipe, 16-hybrid humidifier, 17-coarse fodder conveying worm, 18-one-level injection spray pipe, 19-impact-absorbing shell, 20-activated carbon filter layer.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but never in any form the utility model is limited, any change or the improvement based on the utility model training centre, done, all belong to protection domain of the present utility model.
As shown in Figure 1, the utility model comprises incinerator 2, gas approach 1, desulfurizing tower 3, smoke-outlet flue 4, active carbon feed bin 5, sack cleaner 7, limeslaker 14, injection spray pipe, fluidisation Lower Hold 11, air-introduced machine 8 and chimney 9, the flue gas that incinerator 2 produces is successively by gas approach 1, desulfurizing tower 3, smoke-outlet flue 4, after sack cleaner 7, under the traction of air-introduced machine 8, from chimney 9, discharge, injection spray pipe comprises that peace turns one-level injection spray pipe 18 and the secondary injection spray pipe 15 in desulfurizing tower 3 interior annulars, in desulfurizing tower 3, be furnished with successively from top to bottom one-level injection spray pipe 18, secondary injection spray pipe 15 and activated carbon filter layer 20, the discharging opening of desulfurizing tower 3 bottoms is connected with fluidisation Lower Hold 11 by coarse fodder conveying worm 17, fluidisation Lower Hold 11 is connected with sack cleaner 7 bottoms, fluidisation Lower Hold 11 is communicated with hybrid humidifier 16, limeslaker 14 is connected with secondary injection spray pipe 15 with one-level injection spray pipe 18 by hybrid humidifier 16, running water inlet 13 is installed on hybrid humidifier 16.
Technical process of the present utility model is: the flue gas that incinerator 2 produces enters from the bottom of desulfurizing tower 3, calcium hydroxide, circulating ash and water are in proportion after the interior mixing of hybrid humidifier 16, humidification, by one-level injection spray pipe 18 and secondary injection spray pipe 15, be injected in desulfurizing tower 3, make flue gas and reactive desulfurizing agent form dust-like calcium salt, reach the SO removing in flue gas
2, the acidic materials such as HCL, flue gas is after the absorption of the activated carbon filter layer 20 on desulfurizing tower 3 tops subsequently, activated carbon filter layer 20 can be removed most of dust such as bioxin and heavy metal in flue gas, activated carbon filter layer 20 in described desulfurizing tower 3 can be arranged 2～3 layers according to actual needs, after the flue gas after activated carbon filter layer 20 filters enters sack cleaner 7 by smoke-outlet flue 4, removes more short grained dust.And the dust of collecting by desulfurizing tower 3 and sack cleaner 7 enters fluidisation Lower Hold 11, the ash silo pump 10 that goes out of through-flowization of fraction particle Lower Hold 11 bottoms is discharged, and in the connecting pipe of fluidisation Lower Hold 11 and hybrid humidifier 16, revolving valve 12 is installed, most of particle enters hybrid humidifier 16 by revolving valve 12, with after quantitative calcium hydroxide humidification by mixing of gas from limeslaker 14, feed again desulfurizing tower 3, desulfurizing tower 3 bottom dust enter coarse fodder conveying worm 17 by blow-off valve, coarse fodder conveying worm 17 is again sent into dust fluidisation Lower Hold 11 and is recycled by going out ash silo pumping.
Further, center position in the middle of the interior one-level injection spray pipe 18 of described desulfurizing tower 3 and secondary injection spray pipe 15 is provided with the impact-absorbing shell 19 of taper, make to enter flue gas in desulfurizing tower 3 under the drag effect of impact-absorbing shell 19, sour gas physical efficiency in flue gas fast with reactive desulfurizing agent, improve the efficiency of desulfurization.
In order to reach better dust removing effects, slow down the wearing and tearing to sack cleaner of flying dust in follow-up flue gas, on described smoke-outlet flue 4 by frequency conversion screw(-type) feeder 6 be connected with active carbon feed bin 5, by the detection of flue gas concentration, frequency conversion screw(-type) feeder 6 can be quantitative in smoke-outlet flue 4, spray activated carbon granule, preferably, the activated carbon granule in active carbon feed bin 5 is 200～210 object powders.
Further, the material of described sack cleaner 7 interior filter bags is acid-resistance filtrate, is that filter efficiency is higher in order to make deashing power of regeneration stronger, and sack cleaner 7 operations are more permanent.
Claims (8)
1. the exhaust gas cleaner of a circulating fluid bed garbage furnace, comprise incinerator (2), gas approach (1), desulfurizing tower (3), smoke-outlet flue (4), active carbon feed bin (5), sack cleaner (7), limeslaker (14), injection spray pipe, fluidisation Lower Hold (11), air-introduced machine (8) and chimney (9), the flue gas that described incinerator (2) produces is successively by gas approach (1), desulfurizing tower (3), smoke-outlet flue (4), after sack cleaner (7), under the traction of air-introduced machine (8), from chimney (9), discharge, it is characterized in that: described injection spray pipe comprises that peace turns one-level injection spray pipe (18) and the secondary injection spray pipe (15) of annular in desulfurizing tower (3), in described desulfurizing tower (3), be furnished with successively from top to bottom one-level injection spray pipe (18), secondary injection spray pipe (15) and activated carbon filter layer (20), the discharging opening of described desulfurizing tower (3) bottom is connected with fluidisation Lower Hold (11) by coarse fodder conveying worm (17), described fluidisation Lower Hold (11) is connected with sack cleaner (7) bottom, described fluidisation Lower Hold (11) is communicated with hybrid humidifier (16), described limeslaker (14) is connected with secondary injection spray pipe (15) with one-level injection spray pipe (18) by hybrid humidifier (16), running water inlet (13) is installed on described hybrid humidifier (16).
2. the exhaust gas cleaner of a kind of circulating fluid bed garbage furnace according to claim 1, is characterized in that: the center position in the middle of the interior one-level injection spray pipe of described desulfurizing tower (3) (18) and secondary injection spray pipe (15) is provided with the impact-absorbing shell (19) of taper.
3. the exhaust gas cleaner of a kind of circulating fluid bed garbage furnace according to claim 1, is characterized in that: described smoke-outlet flue (4) is upper is connected with active carbon feed bin (5) by frequency conversion screw(-type) feeder (6).
4. the exhaust gas cleaner of a kind of circulating fluid bed garbage furnace according to claim 1, is characterized in that: the bottom of described fluidisation Lower Hold (11) is connected with out ash silo pump (10) by pipeline.
5. the exhaust gas cleaner of a kind of circulating fluid bed garbage furnace according to claim 1, is characterized in that: the activated carbon filter layer (20) in described desulfurizing tower (3) is 2～3 layers.
6. the exhaust gas cleaner of a kind of circulating fluid bed garbage furnace according to claim 1, is characterized in that: the material of the interior filter bag of described sack cleaner (7) is acid-resistance filtrate.
7. according to the exhaust gas cleaner of a kind of circulating fluid bed garbage furnace described in claim 1 or 3, it is characterized in that: the activated carbon granule in described active carbon feed bin (5) is 200～210 object powders.
8. the exhaust gas cleaner of a kind of circulating fluid bed garbage furnace according to claim 1, is characterized in that: in the connecting pipe of described fluidisation Lower Hold (11) and hybrid humidifier (16), revolving valve (12) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286362.7U CN203886406U (en) | 2014-06-03 | 2014-06-03 | Tail gas purification device of circulating fluid bed garbage incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286362.7U CN203886406U (en) | 2014-06-03 | 2014-06-03 | Tail gas purification device of circulating fluid bed garbage incinerator |
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| Publication Number | Publication Date |
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| CN203886406U true CN203886406U (en) | 2014-10-22 |
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| CN201420286362.7U Expired - Fee Related CN203886406U (en) | 2014-06-03 | 2014-06-03 | Tail gas purification device of circulating fluid bed garbage incinerator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368226A (en) * | 2014-11-14 | 2015-02-25 | 合肥环坤污泥干化设备有限公司 | Flue-gas purifying system of incineration furnace |
| CN105879648A (en) * | 2015-02-17 | 2016-08-24 | 通用电器技术有限公司 | Flue Gas Treatment System And Method |
| CN108343976A (en) * | 2018-02-23 | 2018-07-31 | 叶丛杰 | A kind of efficient incinerator of hazardous waste |
| CN108686495A (en) * | 2018-06-21 | 2018-10-23 | 佛山赛因迪环保科技有限公司 | A kind of smoke processing system for ceramic industry |
| CN110242964A (en) * | 2019-07-06 | 2019-09-17 | 江苏正阳锅炉有限公司 | Waste incineration Heat Treatment integrated apparatus |
| CN115779658A (en) * | 2022-11-07 | 2023-03-14 | 北京首创环境科技有限公司 | Fly ash-slaked lime composite slurry desulfurizer as well as preparation method and application thereof |
| CN115779648A (en) * | 2022-11-07 | 2023-03-14 | 北京首创环境科技有限公司 | Device and method for flue gas deacidification by waste incineration fly ash recycling through semidry method |
-
2014
- 2014-06-03 CN CN201420286362.7U patent/CN203886406U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368226A (en) * | 2014-11-14 | 2015-02-25 | 合肥环坤污泥干化设备有限公司 | Flue-gas purifying system of incineration furnace |
| CN104368226B (en) * | 2014-11-14 | 2016-03-23 | 合肥环坤污泥干化设备有限公司 | Incinerator smoke cleaning system |
| CN105879648A (en) * | 2015-02-17 | 2016-08-24 | 通用电器技术有限公司 | Flue Gas Treatment System And Method |
| CN105879648B (en) * | 2015-02-17 | 2020-10-16 | 通用电器技术有限公司 | Flue gas treatment system and method |
| CN108343976A (en) * | 2018-02-23 | 2018-07-31 | 叶丛杰 | A kind of efficient incinerator of hazardous waste |
| CN108686495A (en) * | 2018-06-21 | 2018-10-23 | 佛山赛因迪环保科技有限公司 | A kind of smoke processing system for ceramic industry |
| CN110242964A (en) * | 2019-07-06 | 2019-09-17 | 江苏正阳锅炉有限公司 | Waste incineration Heat Treatment integrated apparatus |
| CN115779658A (en) * | 2022-11-07 | 2023-03-14 | 北京首创环境科技有限公司 | Fly ash-slaked lime composite slurry desulfurizer as well as preparation method and application thereof |
| CN115779648A (en) * | 2022-11-07 | 2023-03-14 | 北京首创环境科技有限公司 | Device and method for flue gas deacidification by waste incineration fly ash recycling through semidry method |
| CN115779648B (en) * | 2022-11-07 | 2023-10-24 | 北京首创环境科技有限公司 | Device and method for deacidifying flue gas by semi-dry method through recycling waste incineration fly ash |
| CN115779658B (en) * | 2022-11-07 | 2023-10-24 | 北京首创环境科技有限公司 | Fly ash-slaked lime composite slurry desulfurizing agent and preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: QUJING YUNENGTOU INVESTMENT NEW ENERGY POWER GENER Free format text: FORMER NAME: QUJING YUDIANTOU INVESTMENT NEW ENERGY POWER GENERATION CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 655300 Daming Bay, Xiping Town, Zhanyi County, Qujing, Yunnan Patentee after: Qujing cloud cast new energy power generation Co. Ltd. Address before: 655300 Daming Bay, Xiping Town, Zhanyi County, Qujing, Yunnan Patentee before: QUJING YUNDIAN TOUXIN ENERGY POWER GENERATION 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: 20141022 Termination date: 20210603 |