CN211612235U - Processing system of tail gas ammonia - Google Patents
Processing system of tail gas ammonia Download PDFInfo
- Publication number
- CN211612235U CN211612235U CN201922405513.1U CN201922405513U CN211612235U CN 211612235 U CN211612235 U CN 211612235U CN 201922405513 U CN201922405513 U CN 201922405513U CN 211612235 U CN211612235 U CN 211612235U
- Authority
- CN
- China
- Prior art keywords
- spray tower
- water
- ammonia
- acid
- tail gas
- 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
Images
Abstract
The utility model relates to the technical field of tail gas ammonia treatment, and discloses a tail gas ammonia treatment system, which comprises a water spray tower and an acid spray tower, wherein the water spray tower is communicated with the acid spray tower through a gas pipe, and a condensation mechanism is arranged in the water spray tower; the water spray tower and the acid spray tower are internally provided with circulating leaching mechanisms; the tail gas ammonia treatment system is high in treatment efficiency, byproducts such as ammonia water, ammonium phosphate and the like generated in the treatment process are used for synthesizing the fertilizer, so that the environmental problem is solved, the problems of difficulty in treatment and high treatment cost are solved, and meanwhile, certain economic benefits are realized.
Description
Technical Field
The utility model relates to a tail gas ammonia processing system technical field, concretely relates to processing system of tail gas ammonia.
Background
At present, ammonia gas is generated in the synthesis process of many products, and the gas has odor and has great influence on the environment, and at present, many enterprises adopt a multi-stage water absorption mode, but the water absorption amount is small, the water consumption is large, so that the water resource waste is caused, and the odor still overflows; and in addition, enterprises adopt a filler absorption mode, the filler cannot be recycled, and the treatment cost is high.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a processing system of tail gas ammonia, this tail gas ammonia processing system treatment effeciency is high, and the aqueous ammonia that the processing procedure produced and by-products such as ammonium phosphate are used for the synthesis of fertilizer, have both solved environmental problem, have solved again and have handled difficult and problem that treatment cost is high, concrete certain economic benefits simultaneously.
In order to achieve the above object, the present invention provides the following technical solutions:
a tail gas ammonia treatment system comprises a water spray tower and an acid spray tower, wherein the water spray tower is communicated with the acid spray tower through a gas pipe, and a condensation mechanism is arranged in the water spray tower; and circulating leaching mechanisms are arranged in the water spray tower and the acid spray tower.
Preferably, the condensing mechanism comprises a cooling coil arranged in the water spray tower, and the cooling coil is externally connected with a refrigerator.
Preferably, the acid spray tower is further connected with a centrifuge, a liquid inlet of the centrifuge is communicated with a liquid outlet at the bottom end of the acid spray tower, and a filtrate outlet of the centrifuge is connected with the circulating leaching mechanism.
Preferably, the circulating leaching mechanism comprises at least one group of distributors and a pump body, wherein the distributors are arranged at the middle upper part of the water spray tower or the acid spray tower and are connected with the pump body through water pipes to the water spray tower or the leaching solution of the acid spray tower.
Preferably, a filler layer is arranged below the distributor, and a defogging plate is arranged above the distributor.
Preferably, the circulating leaching mechanism in the acid spraying tower further comprises a filter, and the filter is arranged between the water outlet of the acid spraying tower and the pump body.
Preferably, the acid spray tower is further provided with a water supplementing pipeline, and the water supplementing pipeline is communicated with the circulating leaching mechanism.
Preferably, an ammonia water recovery pipeline is further arranged at the bottom of the water spraying tower.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a tail gas ammonia processing system treatment effeciency is high, and by-products such as aqueous ammonia and ammonium phosphate that the processing procedure produced are used for the synthesis of fertilizer, have both solved environmental problem, have solved again and have handled difficult and problem that the treatment cost is high, concrete certain economic benefits simultaneously.
Drawings
Fig. 1 is a schematic structural view of a system for treating off-gas ammonia in embodiment 1.
Fig. 2 is a schematic structural view of a system for treating off-gas ammonia in embodiment 2.
In the drawings: the system comprises a 10-water spray tower, a 20-acid spray tower, a 30-condensation mechanism, a 31-cooling coil, a 32-refrigerator, a 40-circulation spray mechanism, a 41-distributor, a 42-pump body, a 43-packing layer, a 44-demisting plate, a 45-filter, a 50-centrifuge, a 60-water replenishing pipeline and a 70-ammonia water recovery pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1: referring to fig. 1, a preferred embodiment of the present invention provides a system for treating ammonia in tail gas, which includes a water spray tower 10 and an acid spray tower 20, wherein the leacheate in the water spray tower 10 is clear water, and the leacheate in the acid spray tower 20 is a dilute phosphoric acid solution, the water spray tower 10 firstly absorbs most of the ammonia in the tail gas, and if a small amount of the ammonia is absorbed by water, the absorption effect is poor; therefore, the dilute phosphoric acid solution is selected for absorption, the dilute phosphoric acid solution reacts with ammonia gas to generate ammonium phosphate, and by-products of ammonia water and ammonium phosphate are obtained after treatment.
The water spray tower 10 is communicated with the acid spray tower 20 through an air pipe, and a condensing mechanism 30 is arranged in the water spray tower 10; the condensation mechanism 30 comprises a cooling coil 31 arranged in the water spray tower 10, the cooling coil 31 is externally connected with a refrigerator 32, the cooling coil 31 is arranged below the liquid level of the leacheate in the water spray tower 10 to cool the leacheate in the water spray tower 10, a thermometer is arranged in the water spray tower 10 in a matching mode to control the temperature of the leacheate in the water spray tower 10 to be 15-20 ℃ jointly, and the leacheate absorption effect at the temperature is optimal.
The water spray tower 10 and the acid spray tower 20 are both internally provided with a circulating leaching mechanism 40; the circulating leaching mechanism 40 comprises at least one group of distributors 41 and a pump body 42, wherein the distributors 41 are arranged at the middle upper part of the water spray tower 10 or the acid spray tower 20, and the pump body 42 is connected to the leaching solution of the water spray tower 10 or the acid spray tower 20 through a water pipe, so that the leaching solution of the water spray tower 10 or the acid spray tower 20 repeatedly leaches the tail gas, and the absorption rate is improved.
In this embodiment, the acid spray tower 20 is further connected to a centrifuge 50, a liquid inlet of the centrifuge 50 is communicated with a liquid outlet at the bottom end of the acid spray tower 20, and a filtrate outlet of the centrifuge 50 is connected to the circulating leaching mechanism 40; when the leacheate in the acid spray tower 20 reacts with ammonia gas to produce ammonium phosphate, certain crystallization of the ammonium phosphate occurs, the centrifuge 50 is used for carrying out solid-liquid separation on the solid-liquid separation leacheate in the acid spray tower 20, ammonium phosphate filter residues are reserved, the ammonium phosphate is recycled, and the filtrate is pumped into the acid spray tower 20 through the pump body 42.
In the present embodiment, the acid spray tower 20 is further provided with a water replenishing pipeline 60, and the water replenishing pipeline 60 is communicated with the circulating leaching mechanism 40; under the action of the pump body 42, new leacheate is pumped into the acid spray tower 20 for replenishment of the leacheate.
In this embodiment, the bottom of the water spray tower 10 is further provided with an ammonia water recovery pipeline 70, the bottom of the water spray tower 10 is provided with a pH meter, or the leacheate in the water spray tower 10 is taken for detection, and when the ammonia water concentration is higher than a certain range, the ammonia water is recovered and used, so that the method has a certain economic value.
A pH meter is also arranged in the acid spray tower 20, and when the pH value of the leacheate in the acid spray tower 20 is higher than 5.0, new diluted phosphoric acid solution leacheate needs to be supplemented in time.
Example 2: referring to fig. 1-2, a preferred embodiment of the present invention provides a system for treating ammonia in exhaust gas, which is different from embodiment 1 only in that: a packing layer 43 is arranged below the distributor 41, and the packing layer 43 is used for increasing the contact area and the contact time of the leacheate and the tail gas and improving the absorption rate of the leacheate on ammonia gas; a demisting plate 44 is further arranged above the distributor 41, and the demisting plate 44 is used for effectively separating the tail gas from the leacheate.
In this embodiment, the circulating leaching mechanism 40 in the acid spray tower 20 further includes a filter 45, the filter 45 is disposed between the water outlet of the acid spray tower 20 and the pump body 42, and the leaching solution in the acid spray tower 20 reacts with ammonia gas to produce ammonium phosphate, which has a certain amount of crystallization, and the filter 45 is provided to prevent the pump body 42 from being blocked by the ammonium phosphate crystallization.
The specific implementation case is as follows:
for 2000m3Firstly, spraying and absorbing the ammonia-containing tail gas by adopting water in a water spray tower 10 (the water spray tower 10 adopts a glass fiber reinforced plastic spray tower with the diameter of 3m and the height of 8m and is internally provided with a circulating water cooling coil pipe 31);
then dilute phosphoric acid in the acid spray tower 20 is adopted for secondary spray absorption (the acid spray tower 20 adopts a glass fiber reinforced plastic spray tower with the diameter of 3m and the height of 8 m), and the tail gas inlet is provided with 2000m3One fan is used; the pump body 42 of the circulating leaching mechanism 40 is a horizontal glass fiber reinforced plastic pump.
The water spray tower 10 is provided with a circulating water cooling coil 31, the temperature in the water spray tower 10 is controlled to be 15-20 ℃, the leacheate in the water spray tower 10 is repeatedly pumped into the water spray tower 10 under the action of the pump body 42, when the concentration of ammonia gas in the water spray tower 10 reaches 20-25%, the by-product ammonia water can be recycled, and then the water is changed to treat tail gas.
A plunger pump is also arranged between the acid spray tower 20 and the centrifuge 50, the plunger pump is arranged at the position of 0.1m of the tower bottom, the plunger pump is used for conveying leacheate containing ammonium phosphate crystals to the centrifuge 50 for solid-liquid separation, ammonium phosphate filter residues are reserved, ammonium phosphate is recycled, and filtrate is pumped into the acid spray tower 20 through the pump body 42;
meanwhile, dilute phosphoric acid is periodically supplied to the acid spray tower 20 through a water supply line 60.
The tail gas ammonia treatment system is high in treatment efficiency, byproducts such as ammonia water, ammonium phosphate and the like generated in the treatment process are used for synthesizing the fertilizer, so that the environmental problem is solved, the problems of difficulty in treatment and high treatment cost are solved, and meanwhile, certain economic benefits are realized.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.
Claims (8)
1. The tail gas ammonia treatment system is characterized by comprising a water spray tower (10) and an acid spray tower (20), wherein the water spray tower (10) is communicated with the acid spray tower (20) through a gas pipe, and a condensation mechanism (30) is arranged in the water spray tower (10); and circulating leaching mechanisms (40) are arranged in the water spraying tower (10) and the acid spraying tower (20).
2. A tail gas ammonia treatment system according to claim 1, wherein the condensation mechanism (30) comprises a cooling coil (31) disposed in the water spray tower (10), and the cooling coil (31) is externally connected with a refrigerator (32).
3. The system for treating tail gas ammonia according to claim 1, wherein the acid spray tower (20) is further connected to a centrifuge (50), a liquid inlet of the centrifuge (50) is communicated with a liquid outlet at the bottom end of the acid spray tower (20), and a filtrate outlet of the centrifuge (50) is connected to the circulating leaching mechanism (40).
4. The system for treating ammonia in tail gas according to claim 1, wherein the circulating washing mechanism (40) comprises at least one set of distributor (41) and pump body (42), the distributor (41) is disposed in the middle upper part of the water spray tower (10) or the acid spray tower (20), and the pump body (42) is connected to the washing liquid of the water spray tower (10) or the acid spray tower (20) through a water pipe.
5. An ammonia exhaust gas treatment system according to claim 4, wherein a filler layer (43) is arranged below the distributor (41), and a demister (44) is arranged above the distributor (41).
6. The system for treating ammonia in exhaust gas according to claim 4, wherein the circulating washing mechanism (40) in the acid spray tower (20) further comprises a filter (45), and the filter (45) is disposed between the water outlet of the acid spray tower (20) and the pump body (42).
7. The system for treating ammonia in tail gas according to claim 1, wherein the acid spray tower (20) is further provided with a water replenishing pipeline (60), and the water replenishing pipeline (60) is communicated with the circulating leaching mechanism (40).
8. The tail gas ammonia treatment system according to claim 1, wherein an ammonia water recovery pipeline (70) is further arranged at the bottom of the water spray tower (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922405513.1U CN211612235U (en) | 2019-12-27 | 2019-12-27 | Processing system of tail gas ammonia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922405513.1U CN211612235U (en) | 2019-12-27 | 2019-12-27 | Processing system of tail gas ammonia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211612235U true CN211612235U (en) | 2020-10-02 |
Family
ID=72633058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922405513.1U Active CN211612235U (en) | 2019-12-27 | 2019-12-27 | Processing system of tail gas ammonia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211612235U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588099A (en) * | 2020-11-26 | 2021-04-02 | 丰城市环锦机械研发有限公司 | Chimney disinfection emission reduction device |
| CN114570169A (en) * | 2022-05-09 | 2022-06-03 | 山东神驰化工集团有限公司 | Ammonia water loading ammonia recovery system |
-
2019
- 2019-12-27 CN CN201922405513.1U patent/CN211612235U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588099A (en) * | 2020-11-26 | 2021-04-02 | 丰城市环锦机械研发有限公司 | Chimney disinfection emission reduction device |
| CN114570169A (en) * | 2022-05-09 | 2022-06-03 | 山东神驰化工集团有限公司 | Ammonia water loading ammonia recovery system |
| CN114570169B (en) * | 2022-05-09 | 2022-07-08 | 山东神驰化工集团有限公司 | Ammonia water loading ammonia recovery system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104860464B (en) | Energy-saving ammonia-nitrogen wastewater treatment method and device | |
| CN211612235U (en) | Processing system of tail gas ammonia | |
| CN102030386B (en) | Efficient energy-saving coupling stripping deamination equipment and method | |
| CN106007077B (en) | A kind of technique and device for handling ammonium chloride evaporative condensate and recycling ammonia in tail gas | |
| CN104310429B (en) | Mother liquor processing method after a kind of ammonia process of desulfurization centrifugation ammonium sulfate | |
| CN205115086U (en) | Handle device of desulfurization waste water | |
| CN211612176U (en) | Hydrogen chloride tail gas absorbing device of by-product high concentration hydrochloric acid | |
| CN206793387U (en) | A kind of ammonia tail gas recycling and treating device | |
| CN101435082A (en) | Method for processing pickle liquor by negative pressure outer circulation continuous evaporation continuous freezing crystallization process | |
| CN111704344A (en) | Acid pickling process waste zero-emission recycling treatment device and process | |
| CN104844414A (en) | Equipment and process for recovering glyphosate solvent during production with glycine method | |
| CN104860465A (en) | Double-tower catalysis thermal-coupling reflux deamination method and deamination device thereof | |
| CN109650568A (en) | The sudden and violent qi exhaustion ammonia system of one kind vacuum of waste liquid containing ammonia and method | |
| CN103265053A (en) | Method for recycling sulfate from desulfurization waste liquor and equipment system for implementing method | |
| CN217526958U (en) | Ammonia tail gas absorption device | |
| CN215724280U (en) | MVR heat pump system is recycled to low pressure steam | |
| CN104671221A (en) | Method and device for preparing sulphuric acid by taking discharged sulfur dioxide as raw material | |
| CN104118954B (en) | A kind of method and device utilizing Chemical Mixed Fertilizer off gas treatment waste water | |
| CN114436459A (en) | Method for treating wastewater discharged by ammonium fluoride production process | |
| CN203602362U (en) | Device for using heat energy of diammonium phosphate neutralizing tail gas | |
| CN107042060B (en) | Recycling method of ammonia-containing acidic gas | |
| CN105126574A (en) | Evaporation system and evaporation process for removing ammonia and recycling ammonium salt through vapor washing with evaporator | |
| CN103663398B (en) | Method and device for utilizing heat energy of diammonium phosphate neutralization tail gas | |
| CN208136027U (en) | A kind of ternary anode material precursor preparation process liquid waste treatment system | |
| CN203333317U (en) | Equipment system for recycling sulfates from desulfurized waste liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |