CN201231118Y - Chimney tail-gas purification device - Google Patents
Chimney tail-gas purification device Download PDFInfo
- Publication number
- CN201231118Y CN201231118Y CNU2008201501407U CN200820150140U CN201231118Y CN 201231118 Y CN201231118 Y CN 201231118Y CN U2008201501407 U CNU2008201501407 U CN U2008201501407U CN 200820150140 U CN200820150140 U CN 200820150140U CN 201231118 Y CN201231118 Y CN 201231118Y
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- chimney
- spray gun
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Abstract
The utility model discloses a purification apparatus for the tail gas of a chimney, comprising the chimney, a straight flue, a purifying pond and a water spray device; the straight flue is arranged between the lower section of the chimney and an operation chamber generating tail gas, and the chimney and the straight flue form a tail gas discharging passage; the water spray device comprises a water spray gun and gas spray guns, wherein the water spray gun is arranged in the front section of the tail gas discharging passage along the smoke gas flow direction, and the gas spray guns are arranged in the rear section of the tail gas discharging passage; the purified sewage in the straight flue and the chimney flows into the purifying pond through pipelines, and the water spray device is communicated with the compressed gas and the purified water in the purified pond through pipelines. A spray catcher is arranged above the gas spray guns in the chimney, and a flusher is arranged above the spray catcher. The utility model enables the tail gas to pass through the water spray gun and the gas spray guns, thereby enabling the dust in the tail gas to be wet, condensed and deposited, and meanwhile, steam in the tail gas can be recovered, so that the tail gas emission reaches the environmental protection requirement.
Description
Technical field
The utility model relates to a kind of chimney exhaust gas cleaner.
Background technology
Drum process slag treatment technology is a kind of slag thermal state disposing new technology of airtight, quick, resource, high-temperature slag about it has realized in a closed container 1500 ℃ cools off dynamically, continuously, fast and is broken into function less than 100 ℃ of graininess finished product slags, the a large amount of tail gas that produce in the slag processing procedure are concentrated discharging through chimney, have eliminated the pollution scene that traditional residues processing technique steam fills the air, stirs up a cloud of dust.Owing to certainly lead to tiny flue dust in the slag cooling shattering process, after testing the drum process residues processing technique by steam dust concentration in the chimney at 200-500mg/m
3, look the slag of processed slag and processing speed and different, but also contain the steam of 13-19% (volume ratio).If without dust removal process, one ton of slag of every processing discharges about 0.3 kilogram dust and 110m in atmosphere
3Water vapour, not only polluted atmosphere but also wasted water resource, do not reach discharging standards yet.
Electric cleaner and sack cleaner are to use maximum, that technology is the most ripe dedusting technology and equipment at present, but its high investment and the high not general producer of operating cost can afford, particularly at the transformation of existing device, need set up place and blower fan, flue system is carried out big change, difficult.
Comparatively speaking, at chimney tail gas particularly the spray for dust suppression process for purifying of the higher flue gas of water capacity be a scheme that alternative input is little, operating cost is cheap, but efficiency of dust collection low be its total shortcoming.Patent CN200410005631.9 provides a kind of wet spray Dust removal chimney device, it is directly set up sprayer unit in the chimney bottom flue gas is carried out wet spray, wet change of grit change in the chimney weighed, thereby drop to the chimney bottom rapidly, play certain dedusting effect, spray water is recycling through the chimney bottom post precipitation.Weak point is only to be suitable for when hydraulic spray nozzle carries out spray for dust suppression removes big dust particle, and efficiency of dust collection is low.
The utility model content
The purpose of this utility model is to provide a kind of chimney exhaust gas cleaner, this purifier makes tail gas pass through the water smoke spray equipment, thereby make dust in the tail gas moistening, condense, sedimentation, the water vapour in the recyclable again tail gas makes exhaust emissions reach environmental requirement simultaneously.
The utility model is achieved in that a kind of chimney exhaust gas cleaner, include chimney, clarifier-tank, water smoke spray equipment, the sewage that purifies in the after funnel flows into clarifier-tank from chimney bottom by pipeline, it is characterized in that: this purifier also includes straight flue, straight flue is arranged on the chimney hypomere and produces between the operation room of tail gas, and chimney and straight flue constitute the exhaust emissions passage; The water smoke spray equipment comprises the gentle spray painting rifle of water spray gun, and the water spray gun is arranged on along in the exhaust emissions passage leading portion of flow of flue gas direction, and some aerosol spray guns are arranged in the exhaust emissions passage back segment; The sewage that purifies in the straight flue in back also flows into clarifier-tank by pipeline, and the water smoke spray equipment is connected by purifying waste water in pipeline and Compressed Gas and the clarifier-tank.
Aerosol spray gun top also is provided with mist eliminator in the described chimney, and the mist eliminator top is provided with flusher, and mist eliminator is caught the steam in the tail gas, and flusher can clean mist eliminator, prevents that mist eliminator from stopping up.
For big spray gun, be covered with structure of nozzle on every side on the annular in the middle of described water spray gun and first aerosol spray gun comprise, the water spray gun is provided with against the flow of flue gas direction; Be arranged on first aerosol spray gun behind the water spray gun along the flow of flue gas direction, second aerosol spray gun and other aerosol spray gun are provided with against the flow of flue gas direction, and the atomized water spray face covers the whole cross section of exhaust emissions flue.Tail gas at first passes through the water spray gun, to remove the big dust particle in the tail gas.
Described aerosol spray gun droplet Shao Te average diameter is below 100 microns, and maximum fogdrop diameter does not exceed 200 microns, spray aerosol and cover whole tail gas flow area, like this to fine solid particle moistening, condensation effect is obvious.
The hydraulic pressure of described aerosol spray gun and air pressure are between 0.3～0.5MPa.
When described tail gas was lower than 7m/s, aerosol spray gun spacing was 5～10m.
Described straight flue tilts, discharge direction along tail gas and progressively raise, with the effluent stream in the convenient straight flue to straight flue gas inlet place.
The utility model adopts the water spray gun of water smoke spray equipment that big dust particle is removed, adopt again the aerosol spray gun further moistening to fine solid particle, condense, make it sedimentation, make simultaneously the tail gas cooling again, water vapour is wherein separated out, it is turned back in the clarifier-tank.
Adopt the utility model chimney exhaust gas cleaner, make the application of drum process apparatus for treating steel slags become real environment protection novel.The utility model technology is simple, and is easy to maintenance, and operating cost is low, and good dedusting effect can be suitable in all humid gas dedusting fields that contains roughly the same, and restricted some other chimney dedusting occasion in particularly metallurgical process field and place is applied, and has a extensive future.
Description of drawings
Fig. 1 is the utility model chimney exhaust gas cleaner structural representation;
The gentle spray painting rifle of Fig. 2 first order water spray gun structural representation.
Among the figure: 1 chimney, 2 straight flues, 3 clarifier-tanks, operation rooms 4,5 water spray guns, 6 nozzles, 7 ring pipes, 8 aerosol spray guns, 9 mist eliminators, 10 flushers, 11 Compressed Gas.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, a kind of chimney exhaust gas cleaner includes chimney 1, straight flue 2, clarifier-tank 3, water smoke spray equipment.Straight flue 2 is arranged on chimney 1 hypomere and produces between the operation room 4 of tail gas, and straight flue 2 tilts, discharge direction along tail gas and progressively raise, with the effluent stream in the convenient straight flue 2 to straight flue 2 gas inlet places.Chimney 1 and straight flue 2 constitute the exhaust emissions passage, and the tail gas that operation room 4 produces is upwards discharged from chimney 1 through straight flue 2 again.The sewage that purifies in the after funnel 1 flows into clarifier-tank 3 from chimney 1 bottom by pipeline, and the sewage in the straight flue 2 flows into clarifier-tank 3 from straight flue 2 gas inlets by pipeline.Operation room 4 can be the drum process apparatus for treating steel slags, also can be other combustion furnaces.The water smoke spray equipment is connected with Compressed Gas 11 and clarifier-tank 3 interior purifying waste water by pipeline.
The water smoke spray equipment comprises water spray gun 5 gentle spray painting rifles 8, and water spray gun 5 is realized thick dedusting, and aerosol spray gun 8 is realized smart dedusting, and water spray gun 5 gentle spray painting rifles 8 are regulated according to the variation of exhaust gas volumn.Along the direction of flow of flue gas, thick dedusting is before smart dedusting.Water spray gun 5 gentle spray painting rifles 8 are divided into multistage, and when the exhaust gas volumn scope was bigger, progression can correspondingly increase, and when the exhaust gas volumn scope was smaller, progression can correspondingly reduce.The first order of water spray gun 5 gentle spray painting rifles 8 is all taked big spray gun of intermediate arrangement, nozzle ring 6 is additional mode on every side, referring to Fig. 2, guarantee to cover whole flue gas cross section, the second level and later what water spray gun, aerosol spray gun determine to drop into and withdraw from according to the variation of exhaust gas volumn.
In the present embodiment, water spray gun 5 is one, is arranged on along in the exhaust emissions passage leading portion of flow of flue gas direction, and some aerosol spray guns are arranged in the exhaust emissions passage back segment.Water spray gun 5 is positioned at straight flue 2 leading portion parts.Referring to Fig. 2, in the middle of comprising, described water spray gun 5 and first aerosol spray gun 8 be big spray gun, nozzle 6 evenly is arranged on the ring pipe 7.The nozzle 6 of water spray gun 5 is against the flow of flue gas direction, and the atomized water spray face covers straight flue 2 whole cross sections, and it is moistening that steam that generates at the beginning of 5 pairs of this water spray guns and dust carry out preliminary cooling, and the bigger dust of particle diameter is captured; Water spray gun 5 is obtained from clarifier-tank 3 and is purified waste water.Water spray gun 5 rear ends are provided with an aerosol spray gun 8 in the straight flue 2, this aerosol spray gun 8 is along the flow of flue gas direction, so on the one hand tail gas had an acceleration, sends straight flue 2 with easier, the dust of tail gas is further grown up, with easier sedimentation in discharge process.Also be disposed with two aerosol spray guns 8 in the chimney 1, these two reverse flow of flue gas directions of aerosol spray gun 8 injection directions, and the atomized water spray face covers the whole cross section of exhaust emissions flue, the easier like this dust settling that makes.Three aerosol spray guns 8 are connected with Compressed Gas 11 and purifying waste water of clarifier-tank 3 by pipeline, and Compressed Gas 11 can be compressed air or nitrogen, and Compressed Gas 11 can the refinement water droplet; The gentle pressure-controlled of the hydraulic pressure of aerosol spray gun 8 is between 0.3～0.5MPa.Described aerosol spray gun 8 droplet Shao Te average diameters are below 100 microns, and maximum fogdrop diameter does not exceed 200 microns, spray aerosol and cover whole tail gas flow area.When the tail gas air velocity is lower than 7m/s, distance between the aerosol spray gun 8 remains between 5～10 meters, decide on the tail gas flow velocity, distance is too big, then investment cost rises, distance is too little to be difficult to then guarantee that droplet farthest evaporates and dust is had enough sedimentation times after moistening, influences efficiency of dust collection.
Aerosol spray gun 8 tops also are provided with mist eliminator 9 in the described chimney 1, and the steam in 9 pairs of tail gas of mist eliminator captures recovery; Mist eliminator 9 tops are provided with flusher 10, and 10 pairs of mist eliminators of flusher 9 carry out the timing flushing, prevent to stop up.
The utility model is work like this: before 4 work of operation room, open the valve on water of the present utility model, the air pipe earlier, to the water flowing of ventilating of water spray gun 5 and three aerosol spray guns 8, in case nozzle 6 or spray gun 8 are blocked, institute's dust of taking is escaped in the tail gas that also prevents to produce in advance simultaneously.After water-through and ventilating was normal, the 4 beginning operations of operation room began the slag input operation as drum apparatus.The dust that operation room 4 the produces straight flue 2 of process and chimney 1 under the carrying of tail gas, the dust of big particle diameter is captured by 5 atomized water sprays of water spray gun earlier, the small particle diameter dust successively by moistening, the cohesion of trickle droplet institute of aerosol spray gun 8 ejections of two phase flow, is deposited to flue 2 or chimney 1 bottom again in the process of advancing.Along with the spraying into, evaporate of aqueous vapor, exhaust temperature progressively descends, and wherein contained steam condenses and separates out, and particle is grown up gradually because of collision mutually, and finally separates from tail gas, and the capture that this process has been quickened dust equally purifies.Further remove wherein water smoke and dust through the tail gas after purifying through mist eliminator 9, enter atmosphere with clean saturation state.All sewage flow into clarifier-tank 3 after directly converge flue 2 or chimney 1 bottom.3 pairs of sewage of clarifier-tank carry out purified treatment, are purified water at last, and then utilize.After mist eliminator 9 used a period of time, resistance can increase, and need carry out back flush with flusher 10.
To adopt purifier of the present utility model in drum process slag treatment process is example, and the utility model has been obtained very desirable dust removing effects, specifically referring to table 1:
Table 1
| Sequence number | Tail gas amount m 3/h | Gas speed m/s | Exhaust temperature ℃ | Inlet dust concentration mg/Nm 3(mark is done) | Outlet dust concentration mg/Nm 3(mark is done) |
| 1 | 47877 | 2.9 | 72 | 359 | 23.1 |
| 2 | 42204 | 2.6 | 72 | 265 | 18.2 |
| 3 | 69081 | 4.2 | 80 | 326 | 33.3 |
| 4 | 93558 | 5.8 | 80 | 419 | 39.6 |
As can be seen from Table 1, to the tail gas of different tail gas amounts and different gas speed, dust concentration all reduces significantly.
Claims (7)
1. chimney exhaust gas cleaner, include chimney, clarifier-tank, water smoke spray equipment, the sewage that purifies in the after funnel flows into clarifier-tank from chimney bottom by pipeline, it is characterized in that: this purifier also includes straight flue, straight flue is arranged on the chimney hypomere and produces between the operation room of tail gas, and chimney and straight flue constitute the exhaust emissions passage; The water smoke spray equipment comprises the gentle spray painting rifle of water spray gun, and the water spray gun is arranged on along in the exhaust emissions passage leading portion of flow of flue gas direction, and some aerosol spray guns are arranged in the exhaust emissions passage back segment; The sewage that purifies in the straight flue in back also flows into clarifier-tank by pipeline, and the water smoke spray equipment is connected by purifying waste water in pipeline and Compressed Gas and the clarifier-tank.
2. chimney exhaust gas cleaner according to claim 1 is characterized in that: aerosol spray gun top also is provided with mist eliminator in the described chimney, and the mist eliminator top is provided with flusher.
3. chimney exhaust gas cleaner according to claim 1 and 2 is characterized in that: for big spray gun, be covered with structure of nozzle on every side on the annular in the middle of described water spray gun and first aerosol spray gun comprise, the water spray gun is provided with against the flow of flue gas direction; Be arranged on first aerosol spray gun behind the water spray gun along the flow of flue gas direction, second aerosol spray gun and other aerosol spray gun are provided with against the flow of flue gas direction, and the atomized water spray face covers the whole cross section of exhaust emissions flue.
4. chimney exhaust gas cleaner according to claim 3 is characterized in that: described aerosol spray gun droplet Shao Te average diameter is below 100 microns, and maximum fogdrop diameter does not exceed 200 microns, spray aerosol and cover whole tail gas flow area.
5. chimney exhaust gas cleaner according to claim 3 is characterized in that: the hydraulic pressure of described aerosol spray gun and air pressure are between 0.3～0.5MPa.
6. chimney exhaust gas cleaner according to claim 3 is characterized in that: when described tail gas was lower than 7m/s, aerosol spray gun spacing was 5～10m.
7. chimney exhaust gas cleaner according to claim 1 and 2 is characterized in that: described straight flue tilts, and discharges direction along tail gas and progressively raises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201501407U CN201231118Y (en) | 2008-06-27 | 2008-06-27 | Chimney tail-gas purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201501407U CN201231118Y (en) | 2008-06-27 | 2008-06-27 | Chimney tail-gas purification device |
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| Publication Number | Publication Date |
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| CN201231118Y true CN201231118Y (en) | 2009-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201501407U Expired - Fee Related CN201231118Y (en) | 2008-06-27 | 2008-06-27 | Chimney tail-gas purification device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179139A (en) * | 2011-04-02 | 2011-09-14 | 张宏生 | Tail gas purification treatment device |
| CN102233221A (en) * | 2010-04-26 | 2011-11-09 | 江苏博际环保工程有限公司 | Water mist dust removing apparatus |
| CN103851926A (en) * | 2014-03-12 | 2014-06-11 | 中能服(北京)节能投资有限公司 | High-efficiency flue gas afterheat recycling device and recycling method thereof |
| CN107036119A (en) * | 2017-04-21 | 2017-08-11 | 昆明理工大学 | One kind water saving chimney dust removal blowdown apparatus |
| CN108067066A (en) * | 2016-11-17 | 2018-05-25 | 长沙中彬环保科技有限公司 | Efficient twin-stage air-flow trapping deduster |
| CN108067062A (en) * | 2016-11-17 | 2018-05-25 | 长沙中彬环保科技有限公司 | The special trap tube of air-flow deduster |
| CN110280081A (en) * | 2019-07-28 | 2019-09-27 | 东营市延旭环保科技有限公司 | A kind of exhaust tube tail gas filter |
-
2008
- 2008-06-27 CN CNU2008201501407U patent/CN201231118Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102233221A (en) * | 2010-04-26 | 2011-11-09 | 江苏博际环保工程有限公司 | Water mist dust removing apparatus |
| CN102233221B (en) * | 2010-04-26 | 2016-06-01 | 江苏博际环保工程有限公司 | A kind of Water-fog dusting apparatus |
| CN102179139A (en) * | 2011-04-02 | 2011-09-14 | 张宏生 | Tail gas purification treatment device |
| CN102179139B (en) * | 2011-04-02 | 2013-07-10 | 张宏生 | Tail gas purification treatment device |
| CN103851926A (en) * | 2014-03-12 | 2014-06-11 | 中能服(北京)节能投资有限公司 | High-efficiency flue gas afterheat recycling device and recycling method thereof |
| CN103851926B (en) * | 2014-03-12 | 2017-08-15 | 中能服能源科技股份有限公司 | A kind of efficient flue gas waste heat retracting device and its recovery method |
| CN108067066A (en) * | 2016-11-17 | 2018-05-25 | 长沙中彬环保科技有限公司 | Efficient twin-stage air-flow trapping deduster |
| CN108067062A (en) * | 2016-11-17 | 2018-05-25 | 长沙中彬环保科技有限公司 | The special trap tube of air-flow deduster |
| CN107036119A (en) * | 2017-04-21 | 2017-08-11 | 昆明理工大学 | One kind water saving chimney dust removal blowdown apparatus |
| CN110280081A (en) * | 2019-07-28 | 2019-09-27 | 东营市延旭环保科技有限公司 | A kind of exhaust tube tail gas filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20090506 Termination date: 20160627 |
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| CF01 | Termination of patent right due to non-payment of annual fee |