CN209501312U - A kind of device preventing ammonia process desulfuration tower Crystallization Plugging - Google Patents
A kind of device preventing ammonia process desulfuration tower Crystallization Plugging Download PDFInfo
- Publication number
- CN209501312U CN209501312U CN201822205214.9U CN201822205214U CN209501312U CN 209501312 U CN209501312 U CN 209501312U CN 201822205214 U CN201822205214 U CN 201822205214U CN 209501312 U CN209501312 U CN 209501312U
- Authority
- CN
- China
- Prior art keywords
- section
- spray
- washing
- absorbing liquid
- enriching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to a kind of device for preventing ammonia process desulfuration tower Crystallization Plugging, the bottom of desulfurizing tower is absorbing liquid section, and the top of absorbing liquid section is successively enriching section, absorber portion, washing demisting section and demister section；Closed tower Internal baffle is equipped between absorbing liquid section and enriching section, it is equipped with concentration between enriching section and absorber portion and rises gas disk, setting washing section rises gas disk between absorber portion and washing demisting section, it washes in demisting section and is equipped with washing demisting section filler, washing section spraying layer, mist eliminator flushing is equipped in demister section to spray, it will not be crystallized in spraying layer structure, reduce the aggregation that desulfurization ammonium salt divides evaporative crystallization in enriching section, therefore it can prevent liter gas pan portion position crystallization bridging from increasing flue gas circulation, mainly prevent a liter gas pan portion position crystallization bridging, crystallization bridging is removed simultaneously, increase rise gas circle or whirl in the air chamber circulation, reduce running resistance 50Pa or so in tower, improve the water balance of absorbing liquid system, circulation fluid utilization rate greatly improves 90% or more.
Description
Technical field
The utility model relates to a kind of ammonia process desulfuration towers, specifically, being related to one kind prevents ammonia process desulfuration tower Crystallization Plugging
Device, belong to chemical technology field.
Background technique
Currently, generalling use ammonia desulfurizing process to reduce SO2Discharge, research of the China to flue gas desulfurization and denitrification technology
Increasingly pay attention to, ammonia process of desulfurization absorbent uses liquefied ammonia or ammonium hydroxide, so that it may accomplish there is no " three wastes " generation: exhaust gas row up to standard
It puts, no waste water, waste sludge discharge, desulfurizing byproduct are ammonium sulfate.
Saturated crystallization is that a kind of main technique scheme of ammonia process by-product crystallization utilizes import cigarette in absorption tower in tower
Moisture evaporates during the heat of gas sprays absorbing liquid in tower, and solution is up to saturated concentration and crystallization is precipitated, and loop slurry is sent
After by-product system is separated by solid-liquid separation, finished product is made in solid, and mother liquor resorption is received system circulation and used.
In the process of implementing the utility model, the discovery prior art at least has the disadvantage that utility model people
1, in actual moving process, saturated crystallization enriching section is evaporated because of moisture in tower, and solution is precipitated after reaching saturated concentration
Crystallization is not thorough, and the enriching section that results in blockage rises the blocking of bubble cover gas outlet, increases system resistance.
2, ammonia process of desulfurization enriching section circulation fluid leans on the mode of absorbing liquid overflow supplement, causes water balance difficult, causes to wash
Section, absorber portion, the circulation fluid water of enriching section are uneven, for maintenance level weighing apparatus can only part outlet, ammonium sulfate solution recycling is difficult, then
Utilizing status is poor.
Therefore, the processing method that Crystallization Plugging is handled in ammonia process desulfuration tower also needs to continuously improve.
Utility model content
Problem to be solved in the utility model is against the above deficiency, to provide a kind of ammonia process desulfuration tower Crystallization Plugging of preventing
Device realizes following purpose after this method and device:
1) flue gas contacts very abundant with desulfurization absorbing liquid, and desulphurization system is reduced under the premise of guaranteeing desulfuration efficiency
Liquid/gas ratio (L/G)；Traditional liquid/gas ratio (L/G) is 6 or more, and the utility model liquid/gas ratio (L/G) is 4-5 or so.
2) enriching section flue-gas temperature is excessively high in ammonia process desulfuration tower and reduces the water content in flue gas, the blocking of gas phase nodeless mesh；
3) concentrate, the extraction supplement of absorbing liquid and systematic water balance；
4) the operation power of desulphurization system main air blower, absorption system circulating pump is reduced, and is conducive to control exhanst gas outlet
The raising of temperature；
5) recycling for reducing operating cost mitigates environment protection sewage and discharges pressure.
In order to solve the above problem, the technical solution adopted in the utility model is as follows: one kind prevents ammonia process desulfuration tower crystallization stifled
The device of plug, it is characterised in that: the bottom of desulfurizing tower be absorbing liquid section, the top of absorbing liquid section be successively enriching section, absorber portion,
Wash demisting section and demister section；
It is equipped with closed tower Internal baffle between absorbing liquid section and enriching section, concentration is equipped between enriching section and absorber portion and rises gas
Disk, setting washing section rises gas disk between absorber portion and washing demisting section, and washing demisting section filler, washing are equipped in washing demisting section
Section spraying layer, the interior mist eliminator flushing that is equipped with of demister section spray.
Further, it is provided with absorption cycle pipeline between absorbing liquid section and absorber portion, is provided in absorber portion and two-way
The first spray tube, the second spray tube of absorption cycle pipeline connection, are communicated with absorbent recirculation pump on absorption cycle pipeline.
Spray equipment is provided in enriching section, the concentrated circulating pump of spray equipment is connected to the bottom of thickener, thickener
The concentrated delivery pump of slurries is connected to by-product processing system, is communicated in the middle part of the bottom of enriching section and thickener and is converged reflux
Pipeline.
Further, the lower part that concentration rises gas disk is provided with rinse spray structure, and rinse spray structure includes the spray of connection
Head, spray tube, spray tube are connected to through control valve with absorption cycle pipeline, and spray head is mounted on spray tube upwards or on oblique, are sprayed
Shower pipe bottom is equipped with drainage hole.
Further, after flue gas enters desulfurizing tower from gas inlet, flue-gas temperature is in 135 DEG C or so of hot fume de-
Ammonium sulfate is concentrated by evaporation in sulphur tower enriching section, flue-gas temperature is decreased to less than 55 DEG C, enters back into absorber portion, anti-with absorbing liquid
It answers, SO therein2Major part is removed, and flue-gas temperature is further reduced to about 50 DEG C or so, and the neat stress after absorption passes through
Wash after the purification of demisting section through exhanst gas outlet) discharge desulfurizing tower.
Further, the ammonium salt absorbed in flue gas in the spraying layer cyclic process of demisting section, interruption supplement Fresh process are washed
Water.
Further, absorbent recirculation pump passes through spray irrigation structure by liquid in absorbing liquid section through absorption cycle pipeline
The gas outlet that spray head rises gas pan bottom to concentration is rinsed dilution, reduces crystallization and (it is molten close to generating to rinse dilution with absorbing liquid
Liquid), it falls on tower Internal baffle；
Further, control valve is sprayed structure according to time and Liquid level.
Further, the concentrated circulating pump of concentrate in thickener, is sprayed by spray equipment, in ammonia process of desulfurization flue gas
Sulfur dioxide and ammonium hydroxide reaction generate ammonium sulfate using high-temperature flue gas carry out circulation concentration improve concentration, mentioned into post-processing
Take sulfuric acid ammonium product.
Further, the spray liquid after flushing liquor and concentrated circulating pump sprinkling after being sprayed structure sprinkling converges, tower
Internal baffle enters in thickener from desulfurizing tower enriching section bottom through converging reflux line, and the partially liq is made to obtain secondary concentration.
Further, absorption pump absorbing liquid flows back into thickener and is ganged up, and makes slurries concentration balance, balance in thickener
System concentrate, absorbing liquid, water lotion, the concentrated delivery pump of concentrate in thickener are delivered to after-treatment device.
The utility model is had the advantage that compared with prior art using above technical scheme
Through testing, ammonia process of desulfurization crystallization inside tower is cleared up compared with traditional desulphurization system, will not be crystallized in spraying layer structure,
Reduce the aggregation that desulfurization ammonium salt divides evaporative crystallization in enriching section, therefore can prevent liter gas pan portion position crystallization bridging from increasing flue gas stream
It is logical, a liter gas pan portion position crystallization bridging is mainly prevented, while removing crystallization bridging, increases and rise gas and circle or whirl in the air chamber circulation, reduce in tower
Running resistance 50Pa or so.
Improve the water balance of absorbing liquid system, weighing apparatus of improving the standard the result is that in order to improve circulation fluid utilization rate, reduce useless
The outlet of water, circulation fluid utilization rate greatly improve 90% or more.
The utility model is described in detail with reference to the accompanying drawings and examples.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram that ammonia process desulfuration tower Crystallization Plugging device is prevented in the utility model embodiment；
Attached drawing 2 is the structural schematic diagram of desulfurizing tower concentration spray in the utility model embodiment；
In figure:
Delivery pump is concentrated in 1- desulfurizing tower, 2- absorbent recirculation pump, 3- concentrated circulating pump, 4- thickener, 5-, and 6- is sprayed knot
Structure, 7- absorption cycle pipeline, 8- concentration cycles pipeline, 9- converge reflux line, and 10- concentration rises gas disk, 11- tower Internal baffle, 12-
Control valve, 13- spray head, 14- spray tube, 15- absorbing liquid section, 16- enriching section, 17- absorber portion, the first spray tube of 18-, 19-
Second spray tube, 20- spray equipment, the gas outlet 21-, 22- washing section rise gas disk, and 23- washes demisting section filler, 24- washing section
Spraying layer, 25- demister section, 26- mist eliminator flushing spray, 27- wash demisting section, 28- gas inlet, 29- exhanst gas outlet.
Specific embodiment
As shown in Figure 1 and Figure 2, a kind of device preventing ammonia process desulfuration tower Crystallization Plugging, the bottom of the desulfurizing tower 1 are to absorb
Liquid section 15, the top of absorbing liquid section 15 are enriching sections 16, and the top of enriching section 16 is absorber portion 17, and the top of absorber portion 17 is
Demisting section 27 is washed, the top of washing demisting section 27 is demister section 25, and closing is equipped between absorbing liquid section 15 and enriching section 16
Tower Internal baffle 11, tower Internal baffle 11 is the demarcation plate of absorbing liquid section 15 Yu enriching section 16, between enriching section 16 and absorber portion 17
Gas disk 10 is risen equipped with concentration, concentration rises the demarcation plate that gas disk 10 belongs to enriching section 16 Yu absorber portion 17, and absorber portion 17 is removed with washing
Washing section is set between mist section 27 and rises gas disk 22, washing section, which rises, is equipped with washing demisting section in the washing demisting section 27 on 22 top of gas disk
Filler 23, washing section spraying layer 24, demister section 25 is interior to be equipped with mist eliminator flushing spray 26.
Two-way absorption cycle pipeline 7 is provided between absorbing liquid section 15 and absorber portion 17, it is settable more according to the actual situation
Road pipeline, the present embodiment are stated by two-way design, and the first spray being connected to two-way absorption cycle pipeline 7 is provided in absorber portion 17
Shower pipe 18, the second spray tube 19 are communicated with absorbent recirculation pump 2 on absorption cycle pipeline 7, are provided with spray equipment in enriching section 16
20, the concentrated circulating pump 3 of spray equipment 20 is connected to the bottom of thickener 4, the concentrated delivery pump 5 of 4 slurries of thickener and by-product
The connection of object processing system, by-product processing system are that concentrate is separated by solid-liquid separation process life using cyclonic separation, centrifugal dehydration etc.
It is ammonium sulfate at by-product, by-product processing system is the common apparatus of this field, it is no longer described in detail herein, enriching section 16
Bottom and the middle part of thickener 4 are communicated with and converge reflux line 9.
It is transformed inside desulfurizing tower 1, i.e., rinse spray structure 6 is set in the lower part that concentration rises gas disk 10, rinses spray
Drenching structure 6 includes the spray head 13 of connection, spray tube 14, and spray tube 14 is connected to through control valve 12 with absorption cycle pipeline 7, spray head
13 are mounted on spray tube 14 upwards or on oblique, rinse spray liquid and rise 10 bottom of gas disk, and install and arrange in 14 bottom of spray tube
Fluid apertures, drainage hole are for preventing after stopping spraying, and circulation fluid storage time in spray tube 14 is long, causes blocking in pipe；It is dense
It is universal architecture that contracting, which rises gas disk 10,.
After flue gas is from gas inlet 28 into desulfurizing tower, flue-gas temperature is concentrated in 135 DEG C or so of hot fume in desulfurizing tower
Ammonium sulfate is concentrated by evaporation in section 16, flue-gas temperature is decreased to less than 55 DEG C, enters back into absorber portion 17, react with absorbing liquid,
In SO2Major part is removed, and flue-gas temperature is further reduced to about 50 DEG C or so, and the neat stress after absorption is removed by washing
Desulfurizing tower is discharged through exhanst gas outlet 29 after the purification of mist section 27.
The ammonium salt absorbed in flue gas is washed in 24 cyclic process of demisting section spraying layer, interruption supplements Fresh process water, even if
There is drop entrainment, also most into top demisting section 25 are water droplet, substantially reduce the entrainment of ammonium salt, drop is not easy net
Flue gas entrainment.Washing demisting section 27 setting can be greatly lowered system ammonia consumption, improve system ammonia utilization rate, save operation at
This.
Using absorbent recirculation pump 2 by liquid in absorbing liquid section 15 through absorption cycle pipeline 7, by being sprayed structure 6
The gas outlet that 13 pairs of spray head concentrations rise 10 bottom of gas disk is rinsed dilution, reduces crystallization and (rinses dilution close to life with absorbing liquid
At solution), fall on tower Internal baffle 11, tower Internal baffle 11 be up and down it is closed, as circulation fluid connect disk use；In addition control valve
Door 12A/B is (to control the close of absorbing liquid according to interval time and level condition control from spray tube 18,19 liang of spray tube are upper by all means
Degree and pH value are maintained at reasonable region and absorb, and improve absorptivity using concentrate, are determined according to concentrated solution density and temperature dense
The flow that contracting liquid is conveyed to by-product processing system, and control is adjusted with this and rinses interval time and height of liquid level) be sprayed
Structure 6.
In addition the concentrated circulating pump 3 of concentrate in thickener 4, is sprayed, main function is to ammonia process by spray equipment 20
After the ammonium sulfate that sulfur dioxide and ammonium hydroxide reaction in desulfurization fume generate carries out circulation concentration raising concentration using high-temperature flue gas,
Sulfuric acid ammonium product is extracted into post-processing.
Be sprayed the flushing liquor after structure 6 is sprayed and concentrated circulating pump 3 spray after spray liquid converge, using being kept off in tower
Plate 11 is converged reflux line 9 from 16 bottom of desulfurizing tower enriching section and is entered in thickener 4, obtains the partially liq secondary dense
Contracting greatly improves concentration cycles rate, improves concentration process.
Again, 2 absorbing liquid of absorption pump is flowed back into thickener 4 to gang up, makes slurries concentration balance in thickener 4, does
To system concentrate, absorbing liquid, water lotion balanced use.After the concentrated delivery pump 5 of concentrate in thickener 4 is delivered to
Manage device.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of device for preventing ammonia process desulfuration tower Crystallization Plugging, it is characterised in that: the bottom of desulfurizing tower (1) is absorbing liquid section
(15), the top of absorbing liquid section (15) is successively enriching section (16), absorber portion (17), washing demisting section (27) and demister section
(25)；
Closed tower Internal baffle (11), enriching section (16) and absorber portion (17) are equipped between absorbing liquid section (15) and enriching section (16)
Between be equipped with concentration rise gas disk (10), absorber portion (17) and washing demisting section (27) between setting washing section liter gas disk (22), water
It removes and is equipped with washing demisting section filler (23), washing section spraying layer (24) in mist section (27), be equipped with demisting in demister section (25)
Device rinse spray (26).
2. device as described in claim 1, it is characterised in that:
It is provided with absorption cycle pipeline (7), is provided in absorber portion (17) and two between absorbing liquid section (15) and absorber portion (17)
The first spray tube (18), the second spray tube (19) of road absorption cycle pipeline (7) connection, absorption cycle pipeline are communicated on (7)
Absorbent recirculation pump (2).
3. device as described in claim 1, it is characterised in that: be provided with spray equipment (20) in enriching section (16), spray dress
It sets (20) concentrated circulating pump (3) to be connected to the bottom of thickener (4), the concentrated delivery pump of thickener (4) slurries (5) and by-product
Object processing system is connected to, and is communicated in the middle part of the bottom and thickener (4) of enriching section (16) and is converged reflux line (9).
4. device as described in claim 1, it is characterised in that: the lower part that concentration rises gas disk (10) is provided with spray irrigation structure
(6), being sprayed structure (6) includes the spray head (13) of connection, spray tube (14), and spray tube (14) is through control valve (12) and inhales
Circulating line (7) connection is received, spray head (13) is mounted on spray tube (14) upwards or on oblique, and spray tube (14) bottom is equipped with drain
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822205214.9U CN209501312U (en) | 2018-12-27 | 2018-12-27 | A kind of device preventing ammonia process desulfuration tower Crystallization Plugging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822205214.9U CN209501312U (en) | 2018-12-27 | 2018-12-27 | A kind of device preventing ammonia process desulfuration tower Crystallization Plugging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209501312U true CN209501312U (en) | 2019-10-18 |
Family
ID=68197348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822205214.9U Active CN209501312U (en) | 2018-12-27 | 2018-12-27 | A kind of device preventing ammonia process desulfuration tower Crystallization Plugging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209501312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109381988A (en) * | 2018-12-27 | 2019-02-26 | 山东盛宝传热科技有限公司 | A kind of device preventing ammonia process desulfuration tower Crystallization Plugging |
-
2018
- 2018-12-27 CN CN201822205214.9U patent/CN209501312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109381988A (en) * | 2018-12-27 | 2019-02-26 | 山东盛宝传热科技有限公司 | A kind of device preventing ammonia process desulfuration tower Crystallization Plugging |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105126589B (en) | Ammonia desulfuration equipment and technique | |
| CN105381703B (en) | A kind of bubble tower and method for carrying out wet process of FGD | |
| CN101474528B (en) | Device for removing sulfuric dioxide in exhaust gas | |
| CN206652387U (en) | A kind of ammonia desulfuration equipment of resourcebility | |
| CN101601964A (en) | A kind of high-efficiency ammonia flue gas desulfurization technique and device | |
| CN101322906A (en) | Intelligent system for processing waste gas | |
| CN205386407U (en) | Wet flue gas desulfurization's tympanic bulla tower carries out | |
| CN207856557U (en) | Efficient desulfurizing and dust collecting integrated complex absorption tower | |
| CN101428196A (en) | In-hollow column intercrystalline ammonia process of desulfurization, recovery system and method thereof | |
| CN103785275A (en) | Desulfurization, dedusting and denitration integrated flue-gas purifier | |
| CN208287794U (en) | A kind of wet-desulfurizing dust remover | |
| CN105749704A (en) | Ammonium sulphite desulphurization system and process | |
| CN111841272A (en) | Water-saving and energy-saving ammonia desulphurization emission process and system for preventing ammonia escape aerosol | |
| CN109381988A (en) | A kind of device preventing ammonia process desulfuration tower Crystallization Plugging | |
| CN206965497U (en) | A kind of wet desulphurization denitration dust collecting device | |
| CN209501312U (en) | A kind of device preventing ammonia process desulfuration tower Crystallization Plugging | |
| CN201223766Y (en) | PLC automatic control waste gas treater | |
| CN208545125U (en) | A kind of sulphur-burning sulphuric acid system | |
| CN201357043Y (en) | Device for removing sulfur dioxide from waste gas | |
| CN203777911U (en) | Desulfuration, dedusting and denitration integrated flue gas cleaner | |
| CN202237765U (en) | Absorption tower applied to ammonia desulphurization | |
| CN104998530A (en) | Sulfuric acid tail gas desulphurization device and method | |
| CN205361039U (en) | Modified for technology pitch smoke treatment device of pitch | |
| CN208287767U (en) | A kind of sulfur dioxide reclaiming system | |
| CN201578988U (en) | Double circulation double alkali method flue gas desulfurization device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 262100 northwest corner of the intersection of Jinshan street and Yanggan Road, Xin'an street, Anqiu City, Weifang City, Shandong Province Patentee after: SHANDONG SHENGBAO HEAT TRANSFER TECHNOLOGY Co.,Ltd. Address before: 262100 intersection of Xin'an street, Jinshan street and Yanggan Road, Anqiu City, Weifang City, Shandong Province Patentee before: SHANDONG SHENGBAO HEAT TRANSFER TECHNOLOGY Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |