CN105457451A - Ammonia gas absorption device - Google Patents
Ammonia gas absorption device Download PDFInfo
- Publication number
- CN105457451A CN105457451A CN201510943475.9A CN201510943475A CN105457451A CN 105457451 A CN105457451 A CN 105457451A CN 201510943475 A CN201510943475 A CN 201510943475A CN 105457451 A CN105457451 A CN 105457451A
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- Prior art keywords
- tank
- ammonia
- absorption tank
- absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides an ammonia gas absorption device. The device comprises a condenser, a buffer tank, a first-grade absorption tank, a second-grade absorption tank, a third-grade absorption tank and a tail gas absorption tower; the condenser, the buffer tank, the first-grade absorption tank, the second-grade absorption tank, the third-grade absorption tank and the tail gas absorption tower are sequentially connected through gas transmission pipelines; the outer side wall of the first-grade absorption tank and the outer side wall of the second-grade absorption tank are each wrapped with an insulating layer, and cooling devices are arranged inside the first-grade absorption tank and the second-grade absorption tank respectively. According to the ammonia gas absorption device, coil pipes which contain cooling water are arranged in the absorption tanks, and the insulating layers are arranged outside tank bodies, so that the temperature is maintained at 25 DEG C and below, and the ammonia gas absorption rate can reach 99% and above only through water absorption; operation is simple, and operating cost is quite low; through circulatory absorption of the first-grade absorption tank, the second-grade absorption tank and the third-grade absorption tank, generated ammonia water can be reutilized, the yield can reach 99% and above, influence on the environment is eliminated, and great social benefits are achieved.
Description
Technical field
The invention belongs to field of chemical equipment, especially relate to a kind of ammonia absorption device.
Background technology
Be hydrolyzed by raw water solution a large amount of ammonias out in tobacco curing acid and isonicotinic acid technique in industry, directly discharge can to environment; Through wastewater treatment equipment process, or regulate process with acidic materials, treated wastewater flow rate is large, and just can need bring benefits through purification reprocessing, cost recovery is high, and process is complicated.Existing in ammonia process or retracting device, the mode of most employing absorption tower ejecting liquid, make ammonia gas dissolves in the fog-like liquid of ejection, the multistage tourie being provided with cooling device is adopted to carry out cyclic absorption, but in container, be in flow regime due to gas, the droplet of ejection is difficult to be full of whole container, and namely container is at the unapproachable dead angle of droplet, have impact on dissolving and the recovery of ammonia.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of ammonia absorption device, can improve the rate of recovery of ammonia, and simple to operate, operating cost is low.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of ammonia absorption device, comprises condenser, surge tank, first order absorption tank, secondary tourie, three grades of touries and tail gas absorber; Condenser, surge tank, first order absorption tank, secondary tourie, three grades be connected successively by gas pipeline between tourie and tail gas absorber; Described first order absorption tank and secondary tourie tank body lateral wall are all enclosed with heat-insulation layer, and described first order absorption tank and secondary tourie tank interior all have heat sink.Heat-insulation layer plays the effect of isolated ambient temperature.
Further, described first order absorption tank, secondary tourie and three grades of touries are respectively arranged with air inlet and exhaust outlet, and air inlet and exhaust outlet are all positioned at more than tank body liquid level, and air inlet pipe inserts tank base respectively, be positioned under liquid level, the tube wall of the air inlet pipe below liquid level is provided with hole.Ammonia becomes tiny bubble through hole, is fully absorbed in water, generates ammoniacal liquor.
Further, between described first order absorption tank and secondary tourie, water is housed successively and rushes pump and water pump, water rushes pump one end and is connected with first order absorption tank, and two ends are connected with the air inlet of secondary tourie, water pump respectively in addition, and the water pump other end connects at the bottom of the tank of secondary tourie.Under the effect of water pump, water body in secondary tourie rushes pump through water pump and water and forms a water ring, constantly the ammonia that first order absorption tank overflows is absorbed in secondary tourie liquid, and make to form negative pressure in first order absorption tank, the ammonia that hydrolytic decomposition pot used in production is discharged is brought into in first order absorption tank.
Further, described heat sink is coil pipe, is connected with cooling water in coil pipe.Because ammonia gas dissolves can a large amount of heat release in water, after ammonia spirit temperature rises, Ammonia solubility diminishes, and gained ammonia concn is lower.Coil pipe and heat-insulation layer coordinate makes the temperature in tank maintain less than 25 DEG C, to ensure the absorptivity of ammonia.
Further, described tail gas absorber is built with water pump and spray equipment, and its air inlet is positioned at bottom tower body, and inlet end is equipped with blower fan.Make the continuous Sprayer Circulation of the water body in tower by water pump, absorb tail gas.
Further, described surge tank and first order absorption pot bottom are respectively equipped with the first discharging opening and the second discharging opening.In order to prevent the too much water yield from entering first order absorption tank, pot liquid being overflowed, causing the systemic ammoniacal liquor of tank cannot reach the concentration of needs, being mixed with the ammonia of steam, condenser is entered through pipeline, through condensation cooling, steam condenses into water, accumulates in surge tank.Surge tank is often criticized and is put a water by the first drain hole.In first order absorption tank, when ammonia concn reaches after more than 25%, namely reach sale standard, collected by the second drain hole, notify that professional enterprise visits recovery.After ammonia water emptying in first order absorption tank, weak aqua ammonia in secondary tourie can be proceeded to first order absorption tank, continue to absorb ammonia.After water body in secondary tourie proceeds to first order absorption tank, the water body of three grades of touries will be transferred into secondary tourie.After water body in three grades of touries proceeds to secondary tourie, running water will be used directly to supplement three grades of tourie water bodys, extremely simply.
Further, described first order absorption pot sidewall is provided with ammonia concn detector, and visual liquid level gauge.Ammonia concn in first order absorption tank can be measured, monitor liquid level.
Relative to prior art, ammonia absorption device of the present invention has following advantage: ammonia absorption device of the present invention: the heat-insulation layer being furnished with coil pipe and the tank body outside being connected with cooling water in absorption tank body, temperature is made to maintain less than 25 DEG C, by means of only the absorption of water, the absorptivity of ammonia can reach more than 99%; Simple to operate, operating cost is very low; The cyclic absorption of one, two, three tourie, its ammoniacal liquor generated can utilize by secondary again further, and yield can reach more than 99%, reaches very high effects of energy saving and emission reduction, has both eliminated the impact on environment, has again great social benefit.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the ammonia absorption device described in the embodiment of the present invention.
Description of reference numerals:
1-condenser; 2-surge tank; 3-first order absorption tank; 4-secondary tourie; 5-tri-grades of touries; 6-water pump; 7-water rushes pump; 8-tail gas absorber; 9-first drain hole; 10-second drain hole.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below in conjunction with accompanying drawing, specific embodiments of the invention are elaborated.
As shown in Figure 1, a kind of ammonia absorption device, comprises condenser 1, surge tank 2, first order absorption tank 3, secondary tourie 4, three grades of touries 5 and tail gas absorber 8; Condenser 1, surge tank 2, first order absorption tank 3, secondary tourie 4, three grades are connected successively by gas pipeline between tourie 5 and tail gas absorber 8; Described first order absorption tank 3 and secondary tourie 4 tank body lateral wall are all enclosed with heat-insulation layer, and described first order absorption tank 3 and secondary tourie 4 tank interior all have heat sink.
Above-mentioned first order absorption tank 3, secondary tourie 4 and three grades of touries 5 are respectively arranged with air inlet and exhaust outlet, and air inlet and exhaust outlet are all positioned at more than tank body liquid level, air inlet pipe inserts tank base respectively, is positioned under liquid level, and the tube wall of the air inlet pipe below liquid level is provided with hole.
Water is housed between above-mentioned first order absorption tank 3 and secondary tourie 4 successively and rushes pump 7 and water pump 6, water rushes pump 7 one end and is connected with first order absorption tank 3, two ends are connected with the air inlet of secondary tourie 4, water pump 6 respectively in addition, and water pump 6 other end connects at the bottom of the tank of secondary tourie 4.
Above-mentioned heat sink is coil pipe, is connected with cooling water in coil pipe.
Above-mentioned tail gas absorber 8 is built with water pump and spray equipment, and its air inlet is positioned at bottom tower body, and inlet end is equipped with blower fan.
The first discharging opening 9 and the second discharging opening 10 is respectively equipped with bottom above-mentioned surge tank 2 and first order absorption tank 3.
Above-mentioned first order absorption tank 3 sidewall is provided with ammonia concn detector and visual liquid level gauge.
Discharge a large amount of ammonias in isonicotinic acid and nicotinic acid hydrolysis, enter condenser 1 by appendix, through condensation cooling, steam condenses into water, accumulates in surge tank 2, and ammonia then continues to move forward into first order absorption tank 3.The air inlet of first order absorption tank 3 is positioned at more than tank level, and air inlet pipe is deep into tank base, and the air inlet tube wall below liquid level is equipped with pore, and ammonia becomes tiny bubble through pore, is fully absorbed in water, generates ammoniacal liquor.Be furnished with the coil pipe of cooling in first order absorption tank 3, be connected with cooling water in dish tank, there is heat-insulation layer tank body outside, and both cooperations make the temperature in tank maintain less than 25 DEG C, to ensure the absorptivity of ammonia.Unabsorbed ammonia enters secondary tourie 4 through blast pipe, and the air inlet of blast pipe is positioned at more than secondary tourie 4 liquid level.Secondary tourie 4 is identical with the structure of first order absorption tank 3.Between first order absorption tank 3 and two touries 4, water is housed and rushes pump 7, under the effect of water pump 6, water body in secondary tourie 4 rushes pump 7 through water pump 6 and water and forms a water ring, the ammonia constantly overflowed by first order absorption tank 3 absorbs in secondary tourie 4 tank liquid, and make to form negative pressure in first order absorption tank 3, the ammonia that hydrolytic decomposition pot is discharged is brought into first order absorption tank 3.The minute quantity ammonia overflowed in secondary tourie 4, enters three grades of touries 5 by blast pipe.Three grades of touries 5 only air inlet pipe are covered with hole below liquid level, and in tank, water body is normal temperature.The ammonia amount of overflowing because of secondary tourie 4 is very little, and therefore these ammonias also can absorb completely with this understanding substantially in three grades of touries 5.Three grades of tourie 5 blast pipe access tail gas absorbers 8, eliminate the risk that ammonia is released into air further.In tail gas absorber 8, inlet end is equipped with blower fan, and tower body, built with water pump and spray equipment, makes the continuous Sprayer Circulation of the water body in tower by water pump, absorbs tail gas.The gas entering tail gas absorber 8 mainly contains three parts: Part I is the gas from three grades of touries 5, and the ammonia wherein contained is extremely small; Part II is the remaining ammonia from workshop bleacher, owing to still having a small amount of ammonia gas dissolves in hydrolytic decomposition pot in feed liquid, enters in bleacher and also can discharge further, and it will directly be brought into absorption tower 8; Part III is from the hydrochloric acid volatilized in workshop and in crystallizing tank.This three part through spray-absorption, reaches acid-base neutralization in tail gas absorber 8, forms salt ammonium chloride, harmless to environment.When the ammonia concn of first order absorption tank 3 reaches after more than 25%, namely reach sale standard, can notify that professional enterprise visits recovery ammoniacal liquor.After the ammonia water emptying of first order absorption tank 3, weak aqua ammonia in secondary tourie 4 can be proceeded to first order absorption tank 3, continue to absorb ammonia.After water body in secondary tourie 4 proceeds to first order absorption tank 3, the water body of three grades of touries 5 will be transferred into secondary tourie 4.Water body in three grades of touries 5 proceeds to after secondary absorbs 4 tanks, and running water will be used directly to supplement three grades of tourie 5 water bodys.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. an ammonia absorption device, is characterized in that: comprise condenser (1), surge tank (2), first order absorption tank (3), secondary tourie (4), three grades of touries (5) and tail gas absorber (8); Condenser (1), surge tank (2), first order absorption tank (3), secondary tourie (4), to be connected successively by gas pipeline between three grades of touries (5) and tail gas absorber (8); Described first order absorption tank (3) and secondary tourie (4) tank body lateral wall are all enclosed with heat-insulation layer, and described first order absorption tank (3) and secondary tourie (4) tank interior all have heat sink.
2. ammonia absorption device according to claim 1, it is characterized in that: described first order absorption tank (3), secondary tourie (4) and three grades of touries (5) are respectively arranged with air inlet and exhaust outlet, and air inlet and exhaust outlet are all positioned at more than tank body liquid level, air inlet pipe inserts tank base respectively, be positioned under liquid level, the tube wall of the air inlet pipe below liquid level is provided with hole.
3. ammonia absorption device according to claim 2, it is characterized in that: water is housed between described first order absorption tank (3) and secondary tourie (4) successively and rushes pump (7) and water pump (6), water rushes pump (7) one end and is connected with first order absorption tank (3), two ends are connected with the air inlet of secondary tourie (4), water pump (6) respectively in addition, and water pump (6) other end connects at the bottom of the tank of secondary tourie (4).
4. ammonia absorption device according to claim 1, is characterized in that: described heat sink is coil pipe, is connected with cooling water in coil pipe.
5. ammonia absorption device according to claim 1, is characterized in that: described tail gas absorber (8) is built with water pump and spray equipment, and its air inlet is positioned at bottom tower body, and inlet end is equipped with blower fan.
6. ammonia absorption device according to claim 1, is characterized in that: described surge tank (2) and first order absorption tank (3) bottom are respectively equipped with the first discharging opening (9) and the second discharging opening (10).
7. ammonia absorption device according to claim 1, is characterized in that: described first order absorption tank (3) sidewall is provided with ammonia concn detector, and visual liquid level gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943475.9A CN105457451A (en) | 2015-12-14 | 2015-12-14 | Ammonia gas absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943475.9A CN105457451A (en) | 2015-12-14 | 2015-12-14 | Ammonia gas absorption device |
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| CN105457451A true CN105457451A (en) | 2016-04-06 |
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| CN201510943475.9A Pending CN105457451A (en) | 2015-12-14 | 2015-12-14 | Ammonia gas absorption device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731516A (en) * | 2016-12-20 | 2017-05-31 | 利民化工股份有限公司 | A kind of ammoniacal liquor is prepared and exhaust gas recovery system and method |
| CN106932531A (en) * | 2017-04-07 | 2017-07-07 | 北京市农林科学院 | A kind of ammonia absorbs and monitoring device and its application method |
| CN107321127A (en) * | 2017-07-06 | 2017-11-07 | 大唐东北电力试验研究所有限公司 | Ammoniacal liquor recovery system and method in thermal power plant's condenser |
| CN108117091A (en) * | 2018-01-10 | 2018-06-05 | 南通大学 | Aluminium clinker water solution denitrogenates apparatus control method |
| CN108201871A (en) * | 2018-01-10 | 2018-06-26 | 南通大学 | Aluminium clinker water solution nitrogen removing device |
| CN108870065A (en) * | 2018-08-28 | 2018-11-23 | 江门市江海区吉安顺化工有限公司 | A kind of liquid ammonia pouring production line |
| CN108854296A (en) * | 2018-07-12 | 2018-11-23 | 云南文山铝业有限公司 | Ammonia absorbs the method with purification in a kind of aluminium ash treatment process |
| CN108939823A (en) * | 2018-08-28 | 2018-12-07 | 江门市江海区吉安顺化工有限公司 | A kind of Ammonia recovery processing system |
| CN109114416A (en) * | 2018-08-28 | 2019-01-01 | 江门市江海区吉安顺化工有限公司 | A kind of liquid ammonia pouring equipment |
| CN109603432A (en) * | 2018-11-29 | 2019-04-12 | 成都虹波钼业有限责任公司 | A kind of ammonia-containing exhaust absorbs the processing method of application |
| CN112678783A (en) * | 2020-12-30 | 2021-04-20 | 河北双兴摄影化学有限公司 | Preparation system and method of calcium thiosulfate solution |
| CN113387813A (en) * | 2021-05-27 | 2021-09-14 | 江苏万盛大伟化学有限公司 | Method for preparing secondary di-aliphatic amine from primary aliphatic amine |
-
2015
- 2015-12-14 CN CN201510943475.9A patent/CN105457451A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731516A (en) * | 2016-12-20 | 2017-05-31 | 利民化工股份有限公司 | A kind of ammoniacal liquor is prepared and exhaust gas recovery system and method |
| CN106932531A (en) * | 2017-04-07 | 2017-07-07 | 北京市农林科学院 | A kind of ammonia absorbs and monitoring device and its application method |
| CN107321127A (en) * | 2017-07-06 | 2017-11-07 | 大唐东北电力试验研究所有限公司 | Ammoniacal liquor recovery system and method in thermal power plant's condenser |
| CN108117091A (en) * | 2018-01-10 | 2018-06-05 | 南通大学 | Aluminium clinker water solution denitrogenates apparatus control method |
| CN108201871A (en) * | 2018-01-10 | 2018-06-26 | 南通大学 | Aluminium clinker water solution nitrogen removing device |
| CN108854296A (en) * | 2018-07-12 | 2018-11-23 | 云南文山铝业有限公司 | Ammonia absorbs the method with purification in a kind of aluminium ash treatment process |
| CN108870065A (en) * | 2018-08-28 | 2018-11-23 | 江门市江海区吉安顺化工有限公司 | A kind of liquid ammonia pouring production line |
| CN108939823A (en) * | 2018-08-28 | 2018-12-07 | 江门市江海区吉安顺化工有限公司 | A kind of Ammonia recovery processing system |
| CN109114416A (en) * | 2018-08-28 | 2019-01-01 | 江门市江海区吉安顺化工有限公司 | A kind of liquid ammonia pouring equipment |
| CN108870065B (en) * | 2018-08-28 | 2024-03-12 | 江门市江海区吉安顺化工有限公司 | Liquid ammonia fills dress production line |
| CN109603432A (en) * | 2018-11-29 | 2019-04-12 | 成都虹波钼业有限责任公司 | A kind of ammonia-containing exhaust absorbs the processing method of application |
| CN112678783A (en) * | 2020-12-30 | 2021-04-20 | 河北双兴摄影化学有限公司 | Preparation system and method of calcium thiosulfate solution |
| CN113387813A (en) * | 2021-05-27 | 2021-09-14 | 江苏万盛大伟化学有限公司 | Method for preparing secondary di-aliphatic amine from primary aliphatic amine |
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Application publication date: 20160406 |
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