CN203635060U - Tail gas purification system in circulating treatment manner - Google Patents
Tail gas purification system in circulating treatment manner Download PDFInfo
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- CN203635060U CN203635060U CN201320757957.1U CN201320757957U CN203635060U CN 203635060 U CN203635060 U CN 203635060U CN 201320757957 U CN201320757957 U CN 201320757957U CN 203635060 U CN203635060 U CN 203635060U
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- reaction tower
- tail gas
- purification system
- gas purification
- exhaust gas
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Abstract
The utility model discloses a tail gas purification system in a circulating treatment manner. The tail gas purification system mainly comprises a reaction tower connected with a tail gas outlet of an incineration device, a dust remover connected with an outlet of the reaction tower and a discharging device connected with an outlet of the dust remover, wherein a gas monitoring device is arranged between the outlet of the dust remover and the discharging device; a circulating pipe is communicated between the gas monitoring device and the discharging device; the other end of the circulating pipe is communicated with an inlet of the reaction tower; a circulating valve is arranged on the circulating pipe; a discharging valve is arranged between the circulating pipe and the discharging device. The tail gas purification system is used for purifying tail gas generated during the incineration of rubbish, so that the tail gas in which hazardous substances are treated can reach the tail gas discharging standard. The whole system is simple in structure and low in purification treatment cost. The gas monitoring device and a gas circulating structure are arranged at the outlet of the dust remover, so that the circulating treatment on the tail gas can be carried out when the situation that the gas does not reach the discharging standard is monitored. Thus, the treated tail gas can reach the tail gas discharging standard. As a result, the atmospheric contamination caused by the tail gas is avoided.
Description
Technical field
The utility model relates to a kind of exhaust gas purification system of circular treatment.
Background technology
Some pollutants in the tail gas that incineration treatment of garbage process produces can cause secondary pollution to environment, therefore must effectively control these pollutants, make it reach innoxious, to meet the requirement of environmental protection.This is also the key of garbage incineration technology, and to pollutant, control obtains the fine or not development prospect that is related to garbage incineration technology.
Pollutant in MSW Incineration Plant tail gas mainly contains flue dust (flying dust), sour gas, heavy metal and dioxin etc.This be owing to containing more than a large amount of kitchens in house refuse, the discarded object of organic chemical industry's articles for use such as rubber and plastic, in burning process, can there is chemical reaction to produce sour gas, wherein the highest with the content of HCl, also have SOx and HF etc.; Useless light fixture, refuse battery etc. in rubbish contain mercury and its heavy metal element of order, in burning process, are present in tail gas or condense and be attached on the solid-state grit being suspended in tail gas because high temperature can become gaseous state.While having the element such as carbon and oxygen, burning process to be in certain temperature range in containing chloride in rubbish and burning, will generate dioxin-like chemical (when 450 DEG C of left and right, growing amount is the highest), if do not controlled, more than its concentration can reach 2000ng/Nm3.Therefore, these materials must be through processing to being just discharged in atmosphere environment and body harmless's degree.Because existing cleaning system all adopts primary purification, owing to being subject to equipment and the factor such as artificial, can not ensure that the tail gas through purifying reaches discharge standard completely, as the tail gas that does not reach standard directly enters atmosphere, can cause atmosphere pollution.
Utility model content
The purpose of this utility model is to provide a kind of exhaust gas purification system of circular treatment, the exhaust gas purification system of this circular treatment can carry out purified treatment to the tail gas producing in Refuse Incineration Process, after the harmful substance containing in tail gas can being processed, reach exhaust emission standard, and whole apparatus structure is simple, purified treatment cost is low; And by deduster exit, gas controlling device and gas circulation structure being set, thereby in the time monitoring gas and do not reach discharge standard, tail gas can be carried out to circular treatment, thereby guarantee to reach exhaust emission standard, avoid causing atmosphere pollution.
The utility model is achieved through the following technical solutions:
An exhaust gas purification system for circular treatment, mainly by exporting with incinerator tail gas the reaction tower that is connected, export with reaction tower the deduster that is connected, export with deduster the tapping equipment being connected and form; Between described deduster outlet and tapping equipment, be provided with gas controlling device, between this gas controlling device and tapping equipment, be communicated with circulation pipe, the other end of described circulation pipe is connected with reaction tower entrance, and on circulation pipe, be provided with circulation valve, between described circulation pipe and tapping equipment, be provided with vent valves.
Further, described incinerator is incinerator, but is not limited to incinerator, also can select separately according to actual conditions.
Further, described reaction tower is half dry type reaction tower, but is not limited to half dry type reaction tower, also can select separately according to actual conditions, half dry type reaction tower belongs to existing mature technology, and its structure and operation principle belong to the common practise of this area, repeat no more.
Further, described deduster is sack cleaner, but is not limited to sack cleaner, also can select separately according to actual conditions; Sack cleaner plays very important effect in whole exhaust treatment system: (l) tail gas is separated with solid matter with grit.Adhere to the pollutants such as mercury, heavy metal and dioxin due to particles such as these flue dust, reactant and active carbons, thereby also just these pollutants are removed from tail gas in dedusting.(2) secondary response of the neutralization of residual sour gas and pollutant absorption.In the dust removal process of sack cleaner, filter bag has been accumulated the not lime of complete reaction and the dust layer of active carbon outward, and when tail gas passes through, residual sour gas and other pollutant are continued neutralization, absorb, and the overall treatment efficiency of system is improved greatly; Described tapping equipment is chimney, but is not limited to chimney, also can select separately according to actual conditions.
Further, between described reaction tower and deduster, be provided with active carbon syringe.
Further, also comprise ash material storage device, between described vent valves and tapping equipment, be provided with blower fan, promote for the tail gas that deduster is exported out; Because reaction tower and deduster in use all can produce ash material, this ash material can directly be discharged by pipeline, and by manually collecting, but, the utility model is optimized it, in order to reduce cost of labor, be all connected with ash material storage device with the bottom of deduster at reaction tower.
Further, described ash material storage device is ash bucket, but is not limited to ash bucket, also can select separately according to actual conditions.
Further, the upper wall of described reaction tower runs through and is provided with sprayer, described sprayer two ends are separately positioned on the inside and outside of reaction tower, and the sprayer one end that is positioned at reaction tower outside is connected with lime white preparation system by pipeline, and described lime white preparation system is arranged on the outside of reaction tower.
Further, described sprayer is rotary sprayer, but is not limited to selection sprayer, also can select separately according to actual conditions; Described sprayer is fixed on the upper wall of reaction tower by rapid dismounting joint; In the time that system need in service check or keep in repair rotary atomizer, its cut-out can be changed to atomizer for subsequent use.Between the atomizer stage of replacement, the sack cleaner in downstream, still in operation, is attached on filter bag the not still pollutant in trapping flue gas of the pulverized limestone knoisphere of complete reaction.In the time that rotary atomizer is stopped transport, flue-gas temperature may be moved, and is attached on filter bag the not still pollutant in trapping flue gas of the pulverized limestone knoisphere of complete reaction.
Further, described gas controlling device is air mass sensor.
The utility model compared with prior art, the beneficial effect having is: the utility model can carry out purified treatment to the tail gas producing in Refuse Incineration Process, after the harmful substance containing in tail gas can being processed, reach exhaust emission standard, and whole apparatus structure is simple, purified treatment cost is low; And by deduster exit, gas controlling device and gas circulation structure being set, thereby in the time monitoring gas and do not reach discharge standard, tail gas can be carried out to circular treatment, thereby guarantee to reach exhaust emission standard, avoid causing atmosphere pollution.
Brief description of the drawings
Fig. 1 is system schematic of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1:
The utility model provides a kind of exhaust gas purification system of circular treatment, as shown in Figure 1, mainly by exporting with incinerator 1 tail gas the reaction tower 2 that is connected, export with reaction tower 2 deduster 3 that is connected, export with deduster 3 tapping equipment 4 being connected and form; Between described deduster 3 outlets and tapping equipment 4, be provided with gas controlling device 10, between this gas controlling device 10 and tapping equipment 4, be communicated with circulation pipe 11, the other end of described circulation pipe 11 is connected with reaction tower 2 entrances, and on circulation pipe 11, be provided with circulation valve 12, between described circulation pipe 11 and tapping equipment 4, be provided with vent valves 13.
In the present embodiment, described incinerator 1 is incinerator; Reaction tower 2 is half dry type reaction tower; Deduster 3 is pulse bag type dust collector; Tapping equipment 4 is chimney; Ash material storage device 6 is ash bucket; Between described reaction tower 2 and deduster 3, be provided with active carbon syringe 7; Between described vent valves 13 and tapping equipment 4, be provided with blower fan 5, and reaction tower 2 is all connected with ash material storage device 6 with the bottom of deduster 3; Described sprayer 8 adopts rotary sprayer, thereby improves its spray effect.Described answering between tower 2 and deduster 3 is provided with active carbon syringe 7, by active carbon syringe 7 activated carbon injection particles, activated carbon granule is sprayed in the flue before sack cleaner, make tail gas and active carbon before deduster, obtain good mixing and absorption entering, thereby reach better clean-up effect.
The upper wall of described reaction tower 2 runs through and is provided with sprayer 8, described sprayer 8 two ends are separately positioned on the inside and outside of reaction tower 2, and sprayer 8 one end that are positioned at reaction tower 2 outsides are connected with lime white preparation system 9 by pipeline, and described lime white preparation system 9 is arranged on the outside of reaction tower 2; Sprayer 8 is fixed on the upper wall of reaction tower 2 by rapid dismounting joint, in the time that system need in service check or keep in repair rotary atomizer, its cut-out can be changed to atomizer for subsequent use, thereby make whole purification process be unlikely to interrupt, improve purification efficiency, reduced purification cost.
When use the utility model to carry out producing in Refuse Incineration Process vent gas treatment time, first the tail gas that incinerator 1 exports enter reaction tower 2, rotary atomizer High Rotation Speed in reaction tower 2, the lime white solution that the lime white preparation system 9 being attached thereto is prepared sprays into reaction tower 2, make lime white solution and cooling water atomization, due to moisture evaporation, flue-gas temperature is down to approximately 150 DEG C, at this temperature, lime white mist fully reacts with the acidic materials in tail gas, reaction product (solid-state) fall into the bottom of reaction tower 2 laggard enter ash bucket; After the activated carbon granule that first tail gas after reaction tower 2 sprayed into by active carbon syringe 7 further adsorbs, enter sack cleaner, in tail gas, remain harmful substance and trapped by sack cleaner, and finally enter in the ash bucket of sack cleaner bottom; Tail gas after purifying enters in atmosphere by the smoke stack emission that is arranged on sack cleaner outlet.
Below standard and misprint for fear of tail gas, the utility model is provided with gas controlling device 10 in the exit of deduster 3, and in the present embodiment, this gas controlling device 10 is selected existing air mass sensor, because its structure and operation principle are the common practise of this area, therefore repeat no more; By gas controlling device 10, tail gas is monitored, as found, tail gas can not reach discharge standard, close the circulation valve 12 arranging on 13 ON cycle pipes 11 of vent valves, below standard circulation of tail gas carries out circularly purifying process after entering reaction tower 2, and this circularly purifying process is with purification process is identical for the first time, repeat no more, until vent gas treatment up to standard after, close circulation valve 12, open vent valves 13, tail gas after up to standard purification is entered to atmosphere, and whole decontamination process finishes.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment, within all falling into protection domain of the present utility model.
Claims (10)
1. an exhaust gas purification system for circular treatment, is characterized in that: mainly by exporting with incinerator (1) tail gas the reaction tower (2) that is connected, export with reaction tower (2) deduster (3) that is connected, export with deduster (3) tapping equipment (4) being connected and form; Between described deduster (3) outlet and tapping equipment (4), be provided with gas controlling device (10), between this gas controlling device (10) and tapping equipment (4), be communicated with circulation pipe (11), the other end of described circulation pipe (11) is connected with reaction tower (2) entrance, and on circulation pipe (11), be provided with circulation valve (12), between described circulation pipe (11) and tapping equipment (4), be provided with vent valves (13).
2. the exhaust gas purification system of a kind of circular treatment according to claim 1, is characterized in that: described incinerator (1) is incinerator.
3. the exhaust gas purification system of a kind of circular treatment according to claim 1, is characterized in that: described reaction tower (2) is half dry type reaction tower.
4. the exhaust gas purification system of a kind of circular treatment according to claim 1, is characterized in that: described deduster (3) is sack cleaner; Described tapping equipment (4) is chimney.
5. according to the exhaust gas purification system of a kind of circular treatment described in any one in claim 1-4, it is characterized in that: between described reaction tower (2) and deduster (3), be provided with active carbon syringe (7).
6. according to the exhaust gas purification system of a kind of circular treatment described in any one in claim 1-4, it is characterized in that: also comprise ash material storage device (6), between described vent valves (13) and tapping equipment (4), be provided with blower fan (5), and reaction tower (2) is all connected with ash material storage device (6) with the bottom of deduster (3).
7. the exhaust gas purification system of a kind of circular treatment according to claim 6, is characterized in that: described ash material storage device (6) is ash bucket.
8. according to the exhaust gas purification system of a kind of circular treatment described in any one in claim 1-4, it is characterized in that: the upper wall of described reaction tower (2) runs through and is provided with sprayer (8), described sprayer (8) two ends are separately positioned on the inside and outside of reaction tower (2), and be positioned at outside sprayer (8) one end of reaction tower (2) and be connected with lime white preparation system (9) by pipeline, described lime white preparation system (9) is arranged on the outside of reaction tower (2).
9. the exhaust gas purification system of a kind of circular treatment according to claim 8, is characterized in that: described sprayer (8) is rotary sprayer, and described sprayer (8) is fixed on the upper wall of reaction tower (2) by rapid dismounting joint.
10. according to the exhaust gas purification system of a kind of circular treatment described in any one in claim 1-4, it is characterized in that: described gas controlling device (10) is air mass sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757957.1U CN203635060U (en) | 2013-11-27 | 2013-11-27 | Tail gas purification system in circulating treatment manner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757957.1U CN203635060U (en) | 2013-11-27 | 2013-11-27 | Tail gas purification system in circulating treatment manner |
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| Publication Number | Publication Date |
|---|---|
| CN203635060U true CN203635060U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320757957.1U Expired - Fee Related CN203635060U (en) | 2013-11-27 | 2013-11-27 | Tail gas purification system in circulating treatment manner |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826479A (en) * | 2015-05-21 | 2015-08-12 | 成都虹华环保科技股份有限公司 | Full-automatic efficient acid-base waste gas treatment system |
| CN106938174A (en) * | 2016-06-13 | 2017-07-11 | 范正洁 | A kind of exhaust treatment system and processing method |
| CN107389868A (en) * | 2017-08-08 | 2017-11-24 | 南京埃森环境技术股份有限公司 | A kind of ship tail gas on-line monitoring and control system |
| CN108954339A (en) * | 2018-04-16 | 2018-12-07 | 南安市创培电子科技有限公司 | A kind of garbage burning factory waste gas treatment process |
| CN109908691A (en) * | 2019-03-13 | 2019-06-21 | 西安科技大学 | A kind of mine dedusting system and its dust removal method |
-
2013
- 2013-11-27 CN CN201320757957.1U patent/CN203635060U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826479A (en) * | 2015-05-21 | 2015-08-12 | 成都虹华环保科技股份有限公司 | Full-automatic efficient acid-base waste gas treatment system |
| CN106938174A (en) * | 2016-06-13 | 2017-07-11 | 范正洁 | A kind of exhaust treatment system and processing method |
| CN107389868A (en) * | 2017-08-08 | 2017-11-24 | 南京埃森环境技术股份有限公司 | A kind of ship tail gas on-line monitoring and control system |
| CN108954339A (en) * | 2018-04-16 | 2018-12-07 | 南安市创培电子科技有限公司 | A kind of garbage burning factory waste gas treatment process |
| CN109908691A (en) * | 2019-03-13 | 2019-06-21 | 西安科技大学 | A kind of mine dedusting system and its dust removal method |
| CN109908691B (en) * | 2019-03-13 | 2021-07-20 | 西安科技大学 | Mine dust removal system and dust removal method thereof |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20140611 Termination date: 20141127 |
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| EXPY | Termination of patent right or utility model |