CN208097710U - A kind of acid mist tail gas level purification system - Google Patents
A kind of acid mist tail gas level purification system Download PDFInfo
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- CN208097710U CN208097710U CN201820085650.4U CN201820085650U CN208097710U CN 208097710 U CN208097710 U CN 208097710U CN 201820085650 U CN201820085650 U CN 201820085650U CN 208097710 U CN208097710 U CN 208097710U
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- acid mist
- tower body
- spray column
- tower
- tail gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
A kind of acid mist tail gas level purification system of the utility model, including heat exchanger, spray column and circulating water membranous type acid mist purifying tower, it connect at the top of heat exchanger with existing exhaust gas cleaner, the bottom connection of bottom and spray column, is connect at the top of spray column with the bottom of circulating water membranous type acid mist purifying tower；Circulating water membranous type acid mist purifying tower includes tower body, purification device and water supply pipe, installs chimney at the top of tower body；Purification device includes support plate, drainage tube and overflow pipe, and support plate is in a horizontal state to seal with tower body inner wall and fix, and is provided with circular hole and overflow hole thereon；Water supply pipe outlet is located above tower body inner support panels, and water supply pipe moisturizing in support plate forms flowing moisture film；One end of drainage tube and circular hole are tightly connected, and the other end is located in flowing moisture film；Overflow pipe bottom end and overflow hole are tightly connected；Tower body bottom is equipped with drainpipe.The utility model can reduce the content of acid mist and particulate matter in tail gas to greatest extent, reduce environmental pollution.
Description
Technical field
The utility model relates to a kind of acid mist tail gas level purification systems, belong to industrial production acid mist tail gas treatment device skill
Art field.
Background technique
Acid mist typically refers to the acid in mist state.Acid mist particle in air is smaller than the particle of water mist, and diameter is 0.1
It is more slightly higher than the humidity of flue gas in ~ 10 μ ms, there is stronger corrosivity.Acid treatment device in industrial production, as pickling,
The acid mist of the generations such as acid regeneration is mainly hydrochloric acid, and the acid mist of other contents can be also generated in some technical process, such as sulfuric acid, nitric acid
Deng.
Existing acid mist exhaust gas cleaner mainly adsorbs acid mist in the way of spray both at home and abroad at present, but by
Caused by the physical characteristic of spray water mist, a large amount of small size acid mist and particulate matter are still remained in tail gas after spray process, separately
On the one hand contain nearly saturated vapor in the tail gas with certain temperature after spray process, if by this processed
Exhaust emissions into atmosphere at room temperature, it will generate white cigarette on a large scale containing small size acid mist, cause air pollution, destroy
Ecological environment.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of acid mist tail gas level purification systems, can be to industry
The acid mist tail gas generated in production carries out step by step comprehensively purification and reabsorbs, and reduces acid mist and particulate matter in tail gas to greatest extent
Content, reduce environmental pollution.
Solve above-mentioned technical problem technical solution be：
A kind of acid mist tail gas level purification system, including heat exchanger, spray column and circulating water membranous type acid mist purifying tower, heat exchange
It is connect at the top of device with exhaust gas cleaner, the bottom connection of bottom and spray column, it is net with circulating water membranous type acid mist at the top of spray column
Change the bottom connection of tower；The circulating water membranous type acid mist purifying tower includes tower body, purification device and water supply pipe, installation at the top of tower body
Chimney；The purification device includes support plate, drainage tube and overflow pipe, and support plate is in a horizontal state solid with tower body inner wall sealing
It is fixed, it is provided with circular hole and overflow hole thereon；Water supply pipe outlet is located above tower body inner support panels, water supply pipe moisturizing in support plate
Form flowing moisture film；One end of drainage tube and circular hole are tightly connected, and the other end is located in flowing moisture film；Overflow pipe bottom end and overflow
Hole is tightly connected；Tower body bottom is equipped with drainpipe.
A kind of above-mentioned acid mist tail gas level purification system is provided with multiple circular holes and 1 in the support plate of the purification device
A overflow hole, multiple rounded matrix arrangements of circular hole, drainage tube quantity is identical as circular hole quantity, one end of each drainage tube and one
A circular hole is tightly connected；Overflow pipe bottom end and overflow hole are tightly connected；The water supply pipe passes through tower body side wall and seals with side wall
It is fixed.
A kind of above-mentioned acid mist tail gas level purification system, the drainage tube of the purification device are bend pipe, are located at flowing
One end port in moisture film is downward, and the vertical range between the port and support plate is less than the height of overflow pipe；The water supply pipe
Vertical range between outlet and support plate is greater than the height of overflow pipe；The thickness range preferably 15~20 of the flowing moisture film
mm。
A kind of above-mentioned acid mist tail gas level purification system, the exhaust gas cleaner, heat exchanger, spray column and circulating water
It is connected between membranous type acid mist purifying tower by pipeline；Spray column purification device and spray head are installed inside the spray column, sprayed
Tower purification device includes screen and the structured packing be fixed on screen；Spray head is located above spray column purification device, spray head with
Spray piping connection outside spray column.
A kind of above-mentioned acid mist tail gas level purification system, the spray tower side wall are provided with two peep holes up and down, bottom
It is connected with spray column collection conduit, valve is installed thereon；The circulating water membranous type acid mist purifying tower tower body side wall is provided with up and down
Two peep holes are equipped with valve on the drainpipe of bottom, and horizontal liquid drop separator, tower body top peace are equipped in the chimney of top
Equipped with pressure monitor.
During utility model works, acid mist tail gas enters heat exchanger through exhaust gas cleaner, and heat exchanger is in tail gas
Acid mist carry out cooling and deceleration processing, along the temperature exchange inside pipe wall of heat exchanger after making a part of high temperature fumes condense into water droplet
It flows down and is finally collected, acid mist carries out spray process to subsequent spray column to treated, absorb to the acid mist in tail gas net
Change, while the relatively large dimension solid particles object in tail gas is filtered, filtered sediment is through spraying the spray of tower bottom
It drenches tower collection conduit and collects reprocessing, after being entered in circulating water membranous type acid mist purifying tower by the tail gas being discharged at the top of spray column, warp
Drainage tube enters in flowing moisture film, is not purified by the small size acid mist that spray process is crossed using flowing moisture film to remaining,
Relative small size solid particulate matter is filtered simultaneously, object then is carried out to processed acid mist using horizontal liquid drop separator
Reason is collected, finally by smoke stack emission to atmosphere.
The utility model carries out stepwise disposal according to physical characteristic to the heterogeneity in acid mist and collects, can be to greatest extent
Purification absorption and recycling is carried out to acid mist tail gas, makes finally to discharge flue gas and meets existing national emission standard, protecting ecology ring
Border.
The peep hole of the utility model spray column and circulating water membranous type acid mist purifying tower side wall can work in observing tower in due course
Make state, timely adjusting process parameter；The pressure monitor on circulating water membranous type acid mist purifying tower top can be monitored in real time in tower
Operating pressure prevents the generation of superpressure dangerous situation；The utility model acid mist tail gas is absorbed through circulating water membranous type acid mist purifying tower
After purification, the sour water that contains containing acid mist particle and fixed particulate matter is flowed down along overflow pipe, is finally discharged through drainpipe, this part contains
The pickling medium that sour water can be used as preceding road pickling process is recycled again, has saved medium cost；In actual production,
To promote tail gas clean-up effect, stage purifying device can be set in circulating water membranous type acid mist purifying tower.
Compared with existing equipment, the beneficial effects of the utility model are：
1, the utility model can reduce the temperature and flow velocity of acid mist, condense a part of acid mist in pipeline flow process
At acid solution flow ipe bottom, it is sharp again after spray column collection conduit, drainpipe are collected can be supplied to leading portion pickling process
With reducing producing line raw material and energy consumption.
2, the utility model reduces acid content a part of in acid mist, while can be in tail gas using spraying again
Relatively large sized solid particulate matter be filtered, reduce discharge of poisonous waste.
3, the utility model absorbs acid mist using the moisture film purification device of circulating water membranous type acid mist purifying tower again
The problem of purification, solves because acid mist particle is smaller, and tradition spray can not completely absorb it, to acid mist by repeatedly stream
Dynamic moisture film processing, it is ensured that unabsorbed ingredient is dissolved in the water in acid mist.
4, the utility model can be using desalted water as the supply water of flowing moisture film, and the temperature of desalted water is lower than tail containing acid mist
The temperature of gas, the temperature and flow velocity of tail gas can be reduced using flowing moisture film, and this variation will increase flowing moisture film to acid mist
It absorbs, while the generation of a large amount of disperse shape water drop particle and vapor will not be caused.
5, the utility model is absorbed using the flowing moisture film particulate solid minimum to size, and this particulate matter can companion
Tower body bottom is entered by overflow pipe overflow with flowing moisture film, periodically tower bottom sludge is focused on.
6, the utility model carries out last one of acid mist processing using the liquid drop separator in chimney, makes a part of smog again
It is secondary to be collected, while remaining sulphuric acid mist content in tail gas is reduced, reduce the discharge of harmful substance in tail gas.
Detailed description of the invention
Fig. 1 is the utility model entirety assembling schematic diagram；
Fig. 2 is circulating water membranous type acid mist purifying tower sectional view；
Fig. 3 is the support plate schematic diagram of purification device in circulating water membranous type acid mist purifying tower；
Fig. 4 is the enlarged drawing of part A in Fig. 2；
In figure label for：Heat exchanger 1, spray column 2, circulating water membranous type acid mist purifying tower 3, exhaust gas cleaner 4, tower body 5,
Water supply pipe 6, chimney 7, support plate 8, drainage tube 9, overflow pipe 10, circular hole 11, overflow hole 12, flowing moisture film 13, drainpipe 14, pipe
Road 15, spray head 16, screen 17, structured packing 18, spray piping 19, peep hole 20, spray column collection conduit 21, valve 22, water
Flat liquid drop separator 23, pressure monitor 24, intake pump 25.
Specific embodiment
Fig. 1 shows, a kind of acid mist tail gas level purification system of the utility model, including heat exchanger 1, spray column 2 and flowing
Moisture film type acid mist purifying tower 3, the top of heat exchanger 1 connects by pipeline 15 with exhaust gas cleaner 4, bottom pass through pipeline 15 and
The bottom of spray column 2 connects, and the top of spray column 2 is connect by pipeline 15 with the bottom of circulating water membranous type acid mist purifying tower 3；Spray
The inside of leaching tower 2 is equipped with spray column purification device and spray head 16, and spray column purification device includes screen 17 and is fixed on screen
Structured packing 18 on 17；Spray head 16 is located at the top of spray column purification device, the spray piping outside spray head 16 and spray column 2
19 connect, and are equipped with intake pump 25 on spray piping 19；The side wall of spray column 2 is provided with two peep holes 20 up and down, bottom connection
There is spray column collection conduit 21, valve 22 is installed in spray column collection conduit 21；The tower body of circulating water membranous type acid mist purifying tower 3
5 side wall is also provided with two peep holes 20, the top of tower body 5 up and down and is equipped with chimney 7, and horizontal drop point is equipped in chimney 7
From device 23, the bottom of tower body 5 is equipped with drainpipe 14, is equipped with valve 22 thereon；
Fig. 2~Fig. 4 shows that circulating water membranous type acid mist purifying tower 3 includes tower body 5, purification device and 3 water supply pipes 6, purification
Device has 3 grades, including upper layer purification device, middle layer purification device and lower layer's purification device, is arranged in tower body 5 according to upper, middle and lower
Middle and upper part, the structure of 3 grades of purification devices is identical；Every grade of purification device includes that support plate 8, more drainage tubes 9 and 1 piece overflow
Flow tube 10, drainage tube 9 are the U-shaped bend pipe of both arms Length discrepancy, two port is reaming design；It is respectively installed on 3 water supply pipes 6
There are 25,3 water supply pipes 6 of intake pump to be each passed through the side wall of tower body 5 and seal with side wall to fix, the outlet difference of 3 water supply pipes 6
Positioned at the top of the support plate 8 of three-level purification device, the stream that moisturizing is formed with a thickness of 15~20mm in support plate 8 of water supply pipe 6
Dynamic moisture film 13；The area of support plate 8 is identical as the cross-sectional area of tower body 5, and the periphery of support plate 8 and the inner wall sealing of tower body 5 are solid
Fixed, fixed rear bearing sheet 8 is horizontal, and multiple circular holes 11 and 1 identical with the quantity of drainage tube 9 are provided in support plate 8 and are overflow
Discharge orifice 12, the rounded matrix arrangement of multiple circular holes 11, one end of every drainage tube 9 are tightly connected with a circular hole 11, the other end
For open end and it is located in flowing moisture film 13；Overflow pipe 10 is straight tube, and lower end and overflow hole 12 are tightly connected；3 grades of purification dresses
It sets after being installed, the axis of 3 overflow pipes 10 in 3 grades of purification devices is overlapped；
Fig. 2 and Fig. 4 show that one end port that the drainage tube 9 of every grade of purification device is located in flowing moisture film 13 is downward, the end
Vertical range between mouth and the support plate 8 of this grade of purification device is less than the height of overflow pipe 10, guarantees the open end of drainage tube 9
It is always positioned in flowing moisture film 13；Between the outlet and the support plate 8 of corresponding purification device of every water supply pipe 6 it is vertical away from
From the height for being greater than overflow pipe 10；The outlet of 3 water supply pipes 6 is greater than away from the vertical range of corresponding purification device support plate 8
The height of overflow pipe 10 and do not have with the nozzle of overflow pipe 10 overlapping, the desalted water for guaranteeing that water supply pipe 6 flows out can fall in support
On plate 8；The side wall of tower body 5 is also equipped with pressure monitor 24, for monitoring tower pressure interior force.
During utility model works, acid mist tail gas enters heat exchanger 1 through exhaust gas cleaner 4, and heat exchanger 1 is to tail gas
In acid mist carry out cooling and deceleration processing, along the temperature exchange pipe of heat exchanger 1 after making a part of high temperature fumes condense into water droplet
Inner wall flows down and finally is collected, and enters spray column 2 through pipeline 15 through treated the tail gas of heat exchanger 1, on starting spray piping 19
Intake pump 25, industrial water through spray head 16 ejection after cooperation structured packing 18 to acid mist tail gas carry out spray-absorption purification, together
When the relatively large dimension solid particles object in tail gas is filtered, filtered sediment and absorb after acid solution through spray column
The spray column collection conduit 21 of 2 bottoms collects reprocessing, and acid solution can transport to pickling process and be recycled, and sediment can be done
Harmless processing；The tail gas after having handled is absorbed through spray column 2 to be discharged by the top of spray column 2, enters flowing moisture film through pipeline 15
Type acid mist purifying tower 3；
Referring to Fig. 2, the course of work of circulating water membranous type acid mist purifying tower 3 is：First turn on 3 on 3 water supply pipes 6 into
Water pump 25 passes through desalted water in 3 grades of purification devices that 3 water supply pipes 6 are filled in tower body 5, due to support plate 8 and tower body 5
Inner wall sealing is fixed, and the outlet of water supply pipe 6 does not have with the nozzle of overflow pipe 10 overlapping, it is possible to guarantee that industrial water flows into branch
The flowing moisture film 13 of certain altitude is formed on fagging 8；It overflows since the vertical range of open end to the support plate 8 of drainage tube 9 is less than
The height of flow tube 10, so the open end of drainage tube 9 is always positioned at support plate when the water surface reaches the nozzle position of overflow pipe 10
In flowing moisture film 13 on 8；Since the axis of 3 overflow pipes 10 of 3 grades of purification devices is overlapped, so working as 3 grades of purification devices
When the water surface is higher by respective overflow pipe 10 respectively, water can flow into the lower part of tower body 5 by 3 overflow pipes 10, most afterwards through drainpipe
13 discharges；After tail gas after the absorption of spray column 2 has been handled enters tower body 5, the drainage tube 9 through lower layer's purification device enters lower layer
In the flowing moisture film 13 of purification device, acid mist tail gas comes into full contact with flowing moisture film 13, and flowing moisture film 13 can be in acid mist tail gas
Small size acid mist and particulate matter carry out absorption cleaning and filtering, filtered tail gas is separated from flowing moisture film 13, into
Enter in the drainage tube 9 of middle layer purification device, after 13 purification filtering of flowing moisture film of middle layer purification device, purifies and fill into upper layer
In the drainage tube 9 set, the flowing moisture film 13 through upper layer purification device carries out third time purification filtering, passes through 5 top of tower body later
Horizontal liquid drop separator 23 in chimney 7 carries out Physical entrapment to processed acid mist, is emitted into atmosphere finally by chimney 7；
Circulating water after absorbing acid mist flows into 5 lower part of tower body through overflow pipe 10 and is discharged through drainpipe 14, and the stream of sour component is contained in this part
Dynamic water can be supplied to pickling section again and be reused.
In the present embodiment include 3 layers of purification device, purpose be to greatest extent absorb and filter tail gas in tiny acid mist and
Solid particulate matter can increase and decrease the quantity of purification device in actual production according to the content of acid mist in tail gas and solid particulate matter, with
Phase utmostly reduces pollution of the tail gas to environment；The both ends of drainage tube 9 are reaming design in the present embodiment, are conducive to acid mist
Into in drainage tube 9, reduce because the device and caused by tube resistance；Outlet is conducive to expand acid using flaring design
Mist enters the area of flowing moisture film 13, improves the ability that flowing moisture film 13 absorbs acid mist.
Inner wall, support plate 8, drainage tube 9, overflow pipe 10, the water supply pipe 6 of the tower body 5 of the utility model are resistance to by high temperature resistant
Sour material is made, and prevents acid mist and high temperature from prolonging the service life to its corrosion.
Claims (5)
1. a kind of acid mist tail gas level purification system, it is characterised in that：It includes heat exchanger（1）, spray column（2）With flowing moisture film
Type acid mist purifying tower（3）, heat exchanger（1）Top and exhaust gas cleaner（4）Connection, bottom and spray column（2）Bottom connect
It connects, spray column（2）Top and circulating water membranous type acid mist purifying tower（3）Bottom connection；The circulating water membranous type acid mist purifying
Tower（3）Including tower body（5）, purification device and water supply pipe（6）, tower body（5）Top install chimney（7）；The purification device packet
Include support plate（8）, drainage tube（9）And overflow pipe（10）, support plate（8）It is in a horizontal state and tower body（5）Inner wall seal fix,
It is provided with circular hole thereon（11）And overflow hole（12）；Water supply pipe（6）Outlet be located at tower body（5）Inner support panels（8）Top, mend
Water pipe（6）To support plate（8）Upper moisturizing forms flowing moisture film（13）；Drainage tube（9）One end and circular hole（11）It is tightly connected, separately
One end is located at flowing moisture film（13）In；Overflow pipe（10）Bottom end and overflow hole（12）It is tightly connected；Tower body（5）Bottom be equipped with
Drainpipe（14）.
2. a kind of acid mist tail gas level purification system as described in claim 1, it is characterised in that：The support of the purification device
Plate（8）On be provided with multiple circular holes（11）With 1 overflow hole（12）, multiple circular holes（11）Rounded matrix arrangement, drainage tube（9）'s
Quantity and circular hole（11）Quantity it is identical, each drainage tube（9）One end and a circular hole（11）It is tightly connected；The water supply pipe
（6）Across tower body（5）Side wall and with side wall seal fix.
3. a kind of acid mist tail gas level purification system as claimed in claim 1 or 2, it is characterised in that：The purification device
Drainage tube（9）For bend pipe, it is located at flowing moisture film（13）In one end port it is downward, the port and support plate（8）Between hang down
Straight distance is less than overflow pipe（10）Height；The water supply pipe（6）Outlet and support plate（8）Between vertical range be greater than overflow
Flow tube（10）Height；The flowing moisture film（13）Thickness range be 15~20mm.
4. a kind of acid mist tail gas level purification system as described in claim 1, it is characterised in that：The exhaust gas cleaner
（4）, heat exchanger（1）, spray column（2）With circulating water membranous type acid mist purifying tower（3）Between pass through pipeline（15）Connection；The spray
Tower（2）Inside spray column purification device and spray head are installed（16）, spray column purification device includes screen（17）Be fixed on
Screen（17）On structured packing（18）；Spray head（16）Positioned at the top of spray column purification device, spray head（16）With spray column（2）
External spray piping（19）Connection.
5. a kind of acid mist tail gas level purification system as described in claim 1, it is characterised in that：The spray column（2）Side
Wall is provided with two peep holes up and down（20）, bottom is connected with spray column collection conduit（21）, valve is installed thereon（22）；It is described
Circulating water membranous type acid mist purifying tower（3）Tower body side wall be provided with up and down two peep holes（20）, the drainpipe of bottom（14）Upper peace
Equipped with valve（22）, top chimney（7）In horizontal liquid drop separator is installed（23）, tower body（5）Top be equipped with pressure prison
Survey instrument（24）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820085650.4U CN208097710U (en) | 2018-01-18 | 2018-01-18 | A kind of acid mist tail gas level purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820085650.4U CN208097710U (en) | 2018-01-18 | 2018-01-18 | A kind of acid mist tail gas level purification system |
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| Publication Number | Publication Date |
|---|---|
| CN208097710U true CN208097710U (en) | 2018-11-16 |
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ID=64127885
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820085650.4U Active CN208097710U (en) | 2018-01-18 | 2018-01-18 | A kind of acid mist tail gas level purification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144405A (en) * | 2018-01-18 | 2018-06-12 | 邯郸钢铁集团有限责任公司 | A kind of acid mist tail gas level cleaning system |
-
2018
- 2018-01-18 CN CN201820085650.4U patent/CN208097710U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144405A (en) * | 2018-01-18 | 2018-06-12 | 邯郸钢铁集团有限责任公司 | A kind of acid mist tail gas level cleaning system |
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