CN209020143U - A kind of exhaust treatment system recycling high concentration ammonium hydroxide from ammonia-containing exhaust - Google Patents
A kind of exhaust treatment system recycling high concentration ammonium hydroxide from ammonia-containing exhaust Download PDFInfo
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- CN209020143U CN209020143U CN201821666887.8U CN201821666887U CN209020143U CN 209020143 U CN209020143 U CN 209020143U CN 201821666887 U CN201821666887 U CN 201821666887U CN 209020143 U CN209020143 U CN 209020143U
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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
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Abstract
The utility model discloses a kind of from ammonia-containing exhaust recycles the exhaust treatment system of high concentration ammonium hydroxide, including stage falling-film absorber, two-level absorption tower, three-level absorption tower and level Four absorption tower, each structure of the utility model is all made of sealing and exhaust water seal design, under tiny structure and semi-closed state, it can ensure that parking or there is no ammonia leakage when jumping electricity, de- octanol processing is carried out to 60 degrees Celsius of tail gas containing octanol and high concentration ammonia by airless injection system and level-one caustic wash tower, pass through spray thrower before first stage tower, stage falling-film absorber, two-level absorption tower, three-level absorption tower and level Four absorption tower carry out deamination gas disposal to the tail gas of the ammonia containing high concentration, obtain the industrial waste gas for meeting air pollution emission standard, at the same time, the ammonium hydroxide of by-product 20% can be obtained by stage falling-film absorber, the utility model provides one Kind for the treatment of effect is reliable and stable, operational management is convenient, process flow uses the recovery processing technique of feasible and economical rationality industrial production ammonia-containing exhaust.
Description
Technical field
The utility model relates to tail gas disposal technique field, specific field is that one kind recycles high strength ammonia from ammonia-containing exhaust
The exhaust treatment system of water.
Background technique
Ammonia belongs to alkaline gas, slight to suck ammonia poisoning to be presented with rhinitis, pharyngitis, laryngalgia, pronunciation hoarse.Ammonia enters gas
Pipe, bronchus can cause to cough, cough up phlegm, have blood in phlegm.Patient aches after having pharynx cusalgia, cough, expectoration or hemoptysis, uncomfortable in chest and breastbone
Pain etc..The ammonia of low concentration can generate rapidly stimulation to eye and moist skin.Moist skin or eye contact high concentration
Ammonia can cause serious chemical burn.
In industrial production during organic synthesis, the discharge of high concentration ammonia is had, if ammonia-contaminated gas is without tail
Gas disposal had both caused the waste of raw material of industry ammonia resource, it is in line enter atmosphere would seriously pollute the environment again, to solve the above-mentioned problems,
It is proposed that a kind of exhaust treatment system for recycling high concentration ammonium hydroxide from ammonia-containing exhaust.
Utility model content
The purpose of this utility model is to provide a kind of from ammonia-containing exhaust recycles the exhaust treatment system of high concentration ammonium hydroxide,
To solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions: one kind recycling high concentration from ammonia-containing exhaust
The exhaust treatment system of ammonium hydroxide, including the first reaction kettle and the second reaction kettle, the outlet side of first reaction kettle and DN150 are total
The inlet end of pipe is connected, and the outlet side of the DN150 general pipeline is connected with the first inlet end of spray thrower before first stage tower, described
The outlet side of spray thrower is connected with the inlet end of stage falling-film absorber before first stage tower, the outlet of the stage falling-film absorber
End is connected with the inlet end of blower A, and the outlet side of the blower A is connected with the inlet end of two-level absorption tower, the second level
The outlet side on absorption tower is connected with the inlet end of blower B, and the outlet side of the blower B is connected with the inlet end on three-level absorption tower
Logical, the outlet side on the three-level absorption tower is connected with the inlet end on level Four absorption tower, the outlet side of second reaction kettle and
The inlet end of airless injection system is connected, and the outlet side of the airless injection system is connected with the inlet end of level-one caustic wash tower,
The outlet side of the level-one caustic wash tower is connected with the second inlet end of spray thrower before the first stage tower, and the stage falling-film absorbs
The outlet end of device is connected with concentrated ammonia liquor circulating slot.
Preferably, the stage falling-film absorber is graphite modified polyacrylic falling-film absorption instrument.
Preferably, the use pressure of the stage falling-film absorber is less than or equal to 0.3MPa.
Preferably, the air inlet pipe of the two-level absorption tower is located at tower bottom, and the inside of the two-level absorption tower is equipped with plastics
Packing layer.
Preferably, the absorbent that the two-level absorption tower uses is 5% sulfuric acid for water or concentration.
Preferably, the blower and the blower are three, including high pressure blower, relay air blower and branch pipe blower.
Preferably, the air quantity of the blower A and the blower B be 1000 cubic metres per hour, the blower A and blower B
Generation gas velocity is 8 to 10 metre per second (m/s)s.
Preferably, the three-level absorption tower and the level Four absorption tower are reverse-flow stuffing washing tower.
Preferably, the sucking rate of the airless injection system be 300 cubic metres per hour.
Preferably, the level-one caustic wash tower is reverse-flow stuffing washing tower.
Compared with prior art, the utility model has the beneficial effects that each structure of the utility model is all made of sealing and row
Air water envelope design, under tiny structure and semi-closed state, it can be ensured that do not have ammonia leakage when parking or jump electricity, pass through airless injection
System and level-one caustic wash tower carry out de- octanol processing to 60 degrees Celsius of tail gas containing octanol and high concentration ammonia, before first stage tower
Spray thrower, stage falling-film absorber, two-level absorption tower, three-level absorption tower and level Four absorption tower to the tail gas of the ammonia containing high concentration into
Row deamination gas disposal, the industrial waste gas that acquisition meets air pollution emission standard at the same time can by stage falling-film absorber
To obtain the ammonium hydroxide of by-product 20%, the utility model provides that a kind for the treatment of effect is reliable and stable, operational management is convenient, technique
Process uses the recovery processing technique of feasible and economical rationality industrial production ammonia-containing exhaust.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: spray thrower, 5- level-one drop before the first reaction kettle of 1-, the second reaction kettle of 2-, 3-DN150 general pipeline, 4- first stage tower
Film absorber, 6- blower A, 7- two-level absorption tower, 8- blower B, 9- three-level absorption tower, 10- level Four absorption tower, 11- airless injection
System, 12- level-one caustic wash tower, 13- concentrated ammonia liquor circulating slot.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1: as described in Figure 1, a kind of exhaust treatment system recycling high concentration ammonium hydroxide from ammonia-containing exhaust, including the
One reaction kettle 1 and the second reaction kettle 2, the outlet side of first reaction kettle is connected with the inlet end of DN150 general pipeline 3, described
The outlet side of DN150 general pipeline is connected with the first inlet end of spray thrower 4 before first stage tower, the outlet of spray thrower before the first stage tower
End is connected with the inlet end of stage falling-film absorber 5, the outlet side of the stage falling-film absorber and the inlet end of blower A6
Be connected, the outlet side of the blower A is connected with the inlet end of two-level absorption tower 7, the outlet side of the two-level absorption tower with
The inlet end of blower B8 is connected, and the outlet side of the blower B is connected with the inlet end on three-level absorption tower 9, and the three-level is inhaled
The outlet side for receiving tower is connected with the inlet end on level Four absorption tower 10, the outlet side of second reaction kettle and airless injection system
11 inlet end is connected, and the outlet side of the airless injection system is connected with the inlet end of level-one caustic wash tower 12, the level-one
The outlet side of caustic wash tower is connected with the second inlet end of spray thrower before the first stage tower, and the stage falling-film absorber goes out liquid
End is connected with concentrated ammonia liquor circulating slot 13.
Specifically, the stage falling-film absorber is graphite modified polyacrylic falling-film absorption instrument.
Specifically, the use pressure of the stage falling-film absorber is less than or equal to 0.3MPa.
Specifically, the air inlet pipe of the two-level absorption tower is located at tower bottom, the inside of the two-level absorption tower is equipped with modeling
Expect packing layer.
Specifically, the absorbent that the two-level absorption tower uses is water.
Specifically, the blower and the blower are three, including high pressure blower, relay air blower and branch pipe blower,
By high pressure blower, relay air blower and branch pipe blower, each structure of the utility model is effectively ensured and pipeline keeps tiny structure shape
State, each structure of the utility model is all made of sealing and exhaust water seal design, under tiny structure and semi-closed state, it can be ensured that parking
Or there is no ammonia leakage when jumping electricity.
Specifically, the air quantity of the blower A and the blower B be 1000 cubic metres per hour, the blower A and blower
It is 10 metre per second (m/s)s that B, which generates gas velocity,.
Specifically, the three-level absorption tower and the level Four absorption tower are reverse-flow stuffing washing tower.
Specifically, the sucking rate of the airless injection system be 300 cubic metres per hour.
Specifically, the level-one caustic wash tower is reverse-flow stuffing washing tower.
Working principle: the first production tail gas of the first reaction kettle is 110 celsius temperature containing water vapors and high concentration ammonia
Exhaust gas, first production tail gas initially enters stainless steel cooler, by stainless steel cooler to first production tail gas drop
Temperature processing, tail gas enters before first stage tower in spray thrower along the air inlet pipe of DN150 general pipeline after cooling, the second production of the second reaction kettle
Tail gas is 60 degrees Celsius of tail gas containing octanol and high concentration ammonia, is carried out by airless injection system to the second production tail gas primary
Processing, the interior circulation fluid sprayed by vacuum jet pump of airless injection system is lye, to remove part octanol, by primary
Second production tail gas of processing in aspirator, under the action of enter level-one caustic wash tower, level-one caustic wash tower is reverse-flow padding washing
Tower is gone out to remain octanol by level-one caustic wash tower, and adjusts the detergent of level-one caustic wash tower, level-one by pH automatic medicament feeding system
The outlet end of caustic wash tower is connected with octanol layering accumulator tank, and to recycle octanol, the tail gas of level-one caustic wash tower enters along outlet side
Spray thrower before first stage tower, into first stage tower before spray thrower tail gas after primary treatment, into stage falling-film absorber, level-one
Falling-film absorber is wet wall type Surface absorption device, and absorbent is declined by filming device vertically along tubulation inner wall with film-form,
For gas from top to bottom (cocurrent) or from bottom to top (adverse current) by interior tube space, gas-liquid two-phase carries out mass transfer on the liquid film of flowing
Reaction, and by cooling water (agent) logical outside tubulation to remove the heat released in absorption process, the liquid of stage falling-film absorber
Phase product enters concentrated ammonia liquor circulating slot, it can be achieved that by-product recycles 20% ammonium hydroxide, by stage falling-film absorber treated tail gas
Enter two-level absorption tower from tower bottom by blower A, the wind speed that blower generates is 10 metre per second (m/s)s, and tail gas is filled out across plastics from bottom to top
The bed of material, absorbent enter tower body from top to bottom, and adsorbent uses water, since ammonia memory is dissolved in water, can effectively be inhaled using water
Attached remnants ammonia, the air-flow of rising and the absorbent of decline come into full contact on the very big packing layer of specific surface area, enhance
The assimilation effect of absorbent so that the concentration of the ammonia of ascending air is lower and lower, and sequentially enters three-level absorption tower from tower top
It is washed with level Four absorption tower, tail gas reaches discharge standard after level Four absorption tower absorbs, it is discharged from outlet side, this
Each structure of utility model is all made of sealing and exhaust water seal design, under tiny structure and semi-closed state, it can be ensured that parking is jumped
There is no ammonia leakage when electric, by airless injection system and level-one caustic wash tower to 60 degrees Celsius of tails containing octanol and high concentration ammonia
Gas carries out de- octanol processing, passes through spray thrower, stage falling-film absorber, two-level absorption tower, three-level absorption tower and four before first stage tower
Grade absorption tower carries out deamination gas disposal to the tail gas of the ammonia containing high concentration, obtains the Industry Waste for meeting air pollution emission standard
Gas can obtain the ammonium hydroxide of by-product 20% by stage falling-film absorber at the same time, and the utility model provides a kind of place
Reason effect stability is reliable, operational management is convenient, process flow is returned using feasible and economical rationality industrial production ammonia-containing exhaust
Receive treatment process.
Embodiment 2: as described in Figure 1, a kind of exhaust treatment system recycling high concentration ammonium hydroxide from ammonia-containing exhaust, including the
One reaction kettle 1 and the second reaction kettle 2, the outlet side of first reaction kettle is connected with the inlet end of DN150 general pipeline 3, described
The outlet side of DN150 general pipeline is connected with the first inlet end of spray thrower 4 before first stage tower, the outlet of spray thrower before the first stage tower
End is connected with the inlet end of stage falling-film absorber 5, the outlet side of the stage falling-film absorber and the inlet end of blower A6
Be connected, the outlet side of the blower A is connected with the inlet end of two-level absorption tower 7, the outlet side of the two-level absorption tower with
The inlet end of blower B8 is connected, and the outlet side of the blower B is connected with the inlet end on three-level absorption tower 9, and the three-level is inhaled
The outlet side for receiving tower is connected with the inlet end on level Four absorption tower 10, the outlet side of second reaction kettle and airless injection system
11 inlet end is connected, and the outlet side of the airless injection system is connected with the inlet end of level-one caustic wash tower 12, the level-one
The outlet side of caustic wash tower is connected with the second inlet end of spray thrower before the first stage tower, and the stage falling-film absorber goes out liquid
End is connected with concentrated ammonia liquor circulating slot 13.
Specifically, the stage falling-film absorber is graphite modified polyacrylic falling-film absorption instrument.
Specifically, the use pressure of the stage falling-film absorber is less than or equal to 0.3MPa.
Specifically, the air inlet pipe of the two-level absorption tower is located at tower bottom, the inside of the two-level absorption tower is equipped with modeling
Expect packing layer.
Specifically, the absorbent that the two-level absorption tower uses is water.
Specifically, the blower and the blower are three, including high pressure blower, relay air blower and branch pipe blower,
By high pressure blower, relay air blower and branch pipe blower, each structure of the utility model is effectively ensured and pipeline keeps tiny structure shape
State, each structure of the utility model is all made of sealing and exhaust water seal design, under tiny structure and semi-closed state, it can be ensured that parking
Or there is no ammonia leakage when jumping electricity.
Specifically, the air quantity of the blower A and the blower B be 1000 cubic metres per hour, the blower A and blower
It is 9 metre per second (m/s)s that B, which generates gas velocity,.
Specifically, the three-level absorption tower and the level Four absorption tower are reverse-flow stuffing washing tower.
Specifically, the sucking rate of the airless injection system be 300 cubic metres per hour.
Specifically, the level-one caustic wash tower is reverse-flow stuffing washing tower.
Working principle: if remained in tail gas ammonia concentration it is larger, wind speed caused by blower A and blower B is 9 meters every
Second, slow down flow velocity, increase the time of contact of tail gas and absorbent, vent gas treatment effect is good.
Embodiment 3: as described in Figure 1, a kind of exhaust treatment system recycling high concentration ammonium hydroxide from ammonia-containing exhaust, including the
One reaction kettle 1 and the second reaction kettle 2, the outlet side of first reaction kettle is connected with the inlet end of DN150 general pipeline 3, described
The outlet side of DN150 general pipeline is connected with the first inlet end of spray thrower 4 before first stage tower, the outlet of spray thrower before the first stage tower
End is connected with the inlet end of stage falling-film absorber 5, the outlet side of the stage falling-film absorber and the inlet end of blower A6
Be connected, the outlet side of the blower A is connected with the inlet end of two-level absorption tower 7, the outlet side of the two-level absorption tower with
The inlet end of blower B8 is connected, and the outlet side of the blower B is connected with the inlet end on three-level absorption tower 9, and the three-level is inhaled
The outlet side for receiving tower is connected with the inlet end on level Four absorption tower 10, the outlet side of second reaction kettle and airless injection system
11 inlet end is connected, and the outlet side of the airless injection system is connected with the inlet end of level-one caustic wash tower 12, the level-one
The outlet side of caustic wash tower is connected with the second inlet end of spray thrower before the first stage tower, and the stage falling-film absorber goes out liquid
End is connected with concentrated ammonia liquor circulating slot 13.
Specifically, the stage falling-film absorber is graphite modified polyacrylic falling-film absorption instrument.
Specifically, the use pressure of the stage falling-film absorber is less than or equal to 0.3MPa.
Specifically, the air inlet pipe of the two-level absorption tower is located at tower bottom, the inside of the two-level absorption tower is equipped with modeling
Expect packing layer.
Specifically, the absorbent that uses of the two-level absorption tower is 5% sulfuric acid for concentration.
Specifically, the blower and the blower are three, including high pressure blower, relay air blower and branch pipe blower,
By high pressure blower, relay air blower and branch pipe blower, each structure of the utility model is effectively ensured and pipeline keeps tiny structure shape
State, each structure of the utility model is all made of sealing and exhaust water seal design, under tiny structure and semi-closed state, it can be ensured that parking
Or there is no ammonia leakage when jumping electricity.
Specifically, the air quantity of the blower A and the blower B be 1000 cubic metres per hour, the blower A and blower
It is 8 metre per second (m/s)s that B, which generates gas velocity,.
Specifically, the three-level absorption tower and the level Four absorption tower are reverse-flow stuffing washing tower.
Specifically, the sucking rate of the airless injection system be 300 cubic metres per hour.
Specifically, the level-one caustic wash tower is reverse-flow stuffing washing tower.
Working principle: if remained in tail gas ammonia concentration it is excessive, wind speed caused by blower A and blower B is 8 meters every
Second, slow down flow velocity, increase the time of contact of tail gas and absorbent, and adopt 5% sulfuric acid as absorbent, ammonia has alkalinity, sulphur
Acid has acidity, and acid-base neutralization reaction occurs for the two, reinforces the assimilation effect to remaining ammonia, and vent gas treatment effect is good.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of exhaust treatment system that high concentration ammonium hydroxide is recycled from ammonia-containing exhaust, including the first reaction kettle (1) and second is instead
Answer kettle (2), it is characterised in that: the outlet side of first reaction kettle (1) is connected with the inlet end of DN150 general pipeline (3), described
The outlet side of DN150 general pipeline (3) is connected with the first inlet end of spray thrower before first stage tower (4), spray thrower before the first stage tower
(4) outlet side is connected with the inlet end of stage falling-film absorber (5), the outlet side of the stage falling-film absorber (5) with
The inlet end of blower A (6) is connected, and the outlet side of the blower A (6) is connected with the inlet end of two-level absorption tower (7), described
The outlet side of two-level absorption tower (7) is connected with the inlet end of blower B (8), and the outlet side of the blower B (8) and three-level absorb
The inlet end of tower (9) is connected, and the outlet side of the three-level absorption tower (9) is connected with the inlet end of level Four absorption tower (10),
The outlet side of second reaction kettle (2) is connected with the inlet end of airless injection system (11), the airless injection system
(11) outlet side is connected with the inlet end of level-one caustic wash tower (12), the outlet side of the level-one caustic wash tower (12) and the level-one
The second inlet end of spray thrower (4) is connected before tower, and the outlet end of the stage falling-film absorber (5) is connected with concentrated ammonia liquor circulation
Slot (13).
2. a kind of exhaust treatment system for recycling high concentration ammonium hydroxide from ammonia-containing exhaust according to claim 1, feature
Be: the stage falling-film absorber (5) is graphite modified polyacrylic falling-film absorption instrument.
3. a kind of exhaust treatment system for recycling high concentration ammonium hydroxide from ammonia-containing exhaust according to claim 1, feature
Be: the use pressure of the stage falling-film absorber (5) is less than or equal to 0.3MPa.
4. a kind of exhaust treatment system for recycling high concentration ammonium hydroxide from ammonia-containing exhaust according to claim 1, feature
Be: the air inlet pipe of the two-level absorption tower (7) is located at tower bottom, and the inside of the two-level absorption tower (7) is equipped with plastic filler
Layer.
5. a kind of exhaust treatment system for recycling high concentration ammonium hydroxide from ammonia-containing exhaust according to claim 1, feature
Be: the absorbent that the two-level absorption tower (7) uses is 5% sulfuric acid for water or concentration.
6. a kind of exhaust treatment system for recycling high concentration ammonium hydroxide from ammonia-containing exhaust according to claim 1, feature
Be: the blower A (6) and the blower B (8) are three, including high pressure blower, relay air blower and branch pipe blower.
7. a kind of exhaust treatment system for recycling high concentration ammonium hydroxide from ammonia-containing exhaust according to claim 1, feature
Be: the air quantity of the blower A (6) and the blower B (8) be 1000 cubic metres per hour, the blower A (6) and the wind
It is 8 to 10 metre per second (m/s)s that machine B (8), which generates gas velocity,.
8. a kind of exhaust treatment system for recycling high concentration ammonium hydroxide from ammonia-containing exhaust according to claim 1, feature
Be: the three-level absorption tower (9) and the level Four absorption tower (10) are reverse-flow stuffing washing tower.
9. a kind of exhaust treatment system for recycling high concentration ammonium hydroxide from ammonia-containing exhaust according to claim 1, feature
Be: the sucking rate of the airless injection system (11) be 300 cubic metres per hour.
10. a kind of exhaust treatment system for recycling high concentration ammonium hydroxide from ammonia-containing exhaust according to claim 1, feature
Be: the level-one caustic wash tower (12) is reverse-flow stuffing washing tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821666887.8U CN209020143U (en) | 2018-10-15 | 2018-10-15 | A kind of exhaust treatment system recycling high concentration ammonium hydroxide from ammonia-containing exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821666887.8U CN209020143U (en) | 2018-10-15 | 2018-10-15 | A kind of exhaust treatment system recycling high concentration ammonium hydroxide from ammonia-containing exhaust |
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| Publication Number | Publication Date |
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| CN209020143U true CN209020143U (en) | 2019-06-25 |
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ID=66906334
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| CN201821666887.8U Expired - Fee Related CN209020143U (en) | 2018-10-15 | 2018-10-15 | A kind of exhaust treatment system recycling high concentration ammonium hydroxide from ammonia-containing exhaust |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108970341A (en) * | 2018-10-15 | 2018-12-11 | 广东宏昊化工有限公司 | A kind of exhaust treatment system recycling high concentration ammonium hydroxide from ammonia-containing exhaust |
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2018
- 2018-10-15 CN CN201821666887.8U patent/CN209020143U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108970341A (en) * | 2018-10-15 | 2018-12-11 | 广东宏昊化工有限公司 | A kind of exhaust treatment system recycling high concentration ammonium hydroxide from ammonia-containing exhaust |
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