CN211246091U - Sour gas absorption device - Google Patents
Sour gas absorption device Download PDFInfo
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- CN211246091U CN211246091U CN201922178200.7U CN201922178200U CN211246091U CN 211246091 U CN211246091 U CN 211246091U CN 201922178200 U CN201922178200 U CN 201922178200U CN 211246091 U CN211246091 U CN 211246091U
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- peroxide solution
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Abstract
The utility model relates to an acid gas absorbing device, include the acid gas conveying line and the lye tank with the enrichment facility intercommunication, its technical essential is: be equipped with the condenser on the sour gas conveying line, sour gas conveying line's end and gas-liquid separation jar intercommunication, the bottom of one-level hydrogen peroxide solution adsorption tanks is inserted to gas outlet pipeline I end of gas-liquid separation jar, the bottom of II ends of gas outlet pipeline of one-level hydrogen peroxide solution adsorption tanks insert the second grade hydrogen peroxide solution adsorption tanks, the terminal alkaline solution inslot that inserts of gas outlet pipeline III of second grade hydrogen peroxide solution adsorption tanks, be equipped with the cooling coil pipe in one-level hydrogen peroxide solution adsorption tanks and the second grade hydrogen peroxide solution adsorption tanks respectively, the both ends of cooling coil pipe stretch out the jar body and. The utility model provides a big, the big problem of formation result processing burden of alkali lye quantity that current sour gas processing apparatus exists, resources are saved, reduction in production cost.
Description
Technical Field
The utility model relates to a chemical production waste gas recovery technical field specifically is an acid gas absorbing device.
Background
At present, can produce a large amount of dilute sulfuric acid in the chemical production process, in order to reduce the wasting of resources, adopt enrichment facility to carry out recycle to useless dilute sulfuric acid usually, however volatile a large amount of sulfur dioxide, sulfur trioxide gas (sour gas) in the dilute sulfuric acid concentration process, can't directly discharge. The existing acid gas treatment method is to utilize alkali liquor to absorb acid gas, but needs to use a large amount of alkali liquor, and simultaneously can generate a large amount of sulfite and sulfate waste liquor, and the waste liquor can not reach the standard to be discharged, thereby increasing the burden of subsequent treatment.
Disclosure of Invention
An object of the utility model is to provide a simple structure, use reliable sour gas absorbing device, solved the alkali lye quantity that current sour gas processing apparatus exists big, generate the product and handle the big problem of burden, resources are saved, reduction in production cost.
The technical scheme of the utility model is that:
the utility model provides an acid gas absorbing device, includes acid gas conveying line and lye tank with the enrichment facility intercommunication, its technical essential is: the sour gas conveying pipeline is provided with a condenser, the tail end of the sour gas conveying pipeline is communicated with a gas-liquid separation tank, the tail end of an air outlet pipeline I of the gas-liquid separation tank is inserted into the bottom of a first-stage hydrogen peroxide solution absorption tank, the tail end of an air outlet pipeline II of the first-stage hydrogen peroxide solution absorption tank is inserted into the bottom of a second-stage hydrogen peroxide solution absorption tank, the tail end of an air outlet pipeline III of the second-stage hydrogen peroxide solution absorption tank is inserted into a lye tank, cooling coils are arranged in the first-stage hydrogen peroxide solution absorption tank and the second-stage hydrogen peroxide solution absorption tank respectively.
In the acid gas absorption device, the first-stage hydrogen peroxide solution absorption tank and the second-stage hydrogen peroxide solution absorption tank are identical in structure, the top of the first-stage hydrogen peroxide solution absorption tank is provided with a gas outlet communicated with the gas outlet pipeline II or the gas outlet pipeline III, and the bottom of the first-stage hydrogen peroxide solution absorption tank is provided with a discharge opening.
In the acid gas absorption device, the tail ends of the gas outlet pipeline I and the gas outlet pipeline II are respectively communicated with the gas distribution coil pipes arranged in the first-stage hydrogen peroxide absorption tank and the second-stage hydrogen peroxide absorption tank, and the pipe walls of the gas distribution coil pipes are uniformly provided with gas distribution holes.
In the acid gas absorption device, the gas outlet pipeline I and the gas outlet pipeline II are respectively provided with a one-way valve.
In the acid gas absorption device, the gas-liquid separation tank comprises a horizontal tank body and a guide plate group arranged in the tank along the length direction of the horizontal tank body, the guide plate group comprises an upper guide plate connected with the upper part of the horizontal tank body and a lower guide plate connected with the lower part of the horizontal tank body, the upper guide plate and the lower guide plate are arranged in a staggered manner to form a serpentine guide channel, the tail end of the acid gas conveying pipeline is connected with the top surface of the gas-liquid separation tank and is positioned at the inlet side of the serpentine guide channel, the starting end of the gas outlet pipeline I is connected with the top surface of the gas-liquid separation tank and is positioned at the outlet side of the serpentine guide channel, a discharge pipeline and a discharge valve are respectively arranged between the two adjacent lower guide plates, the lower guide plates and the seal end of the horizontal tank.
In the acid gas absorption device, the tail end of the gas outlet pipeline III is provided with the gas distribution disc, the lower surface of the gas distribution disc is provided with the plurality of gas distribution holes around the center, the outer side of the gas distribution disc is provided with the secondary gas distribution cover, and the lower edge of the secondary gas distribution cover is lower than the lower surface of the gas distribution disc and is close to the bottom surface of the lye tank. So that the gas firstly passes through the alkali liquor in the secondary gas distribution cover and then diffuses to the alkali liquor outside the secondary gas distribution cover, thereby enhancing the reaction absorption effect.
The utility model has the advantages that:
1. the utility model discloses an arrange one-level hydrogen peroxide solution adsorption tanks and second grade hydrogen peroxide solution adsorption tanks before the lye tank, utilize hydrogen peroxide solution to realize having reduced the alkali lye quantity to the two-step absorption of sour gas, reduced manufacturing cost, the diluted acid liquid that becomes after hydrogen peroxide solution absorbs simultaneously can be retrieved and reuse in enterprise's production, has practiced thrift some manufacturing cost again.
2. The utility model discloses arranged condenser and condensing pot in addition before one-level hydrogen peroxide solution adsorption tanks, carried out the condensation to the sulphuric acid gas of sneaking into in the sour gas and collected, alleviateed the processing burden of epilogue adsorption tanks.
To sum up, the utility model provides a problem that the alkali lye quantity that current sour gas processing apparatus exists is big, the burden is big is handled to the formation result, resources are saved, reduction in production cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the gas distribution coil;
FIG. 3 is a schematic diagram of a cooling coil;
fig. 4 is a schematic structural diagram of the gas distribution plate.
In the figure: the system comprises a condenser 1, an acid gas conveying pipeline 2, a gas-liquid separation tank 3, an upper guide plate 4, a lower guide plate 5, a snakelike guide channel 6, a gas outlet pipeline I7, a one-way valve 8, a gas distribution coil pipe 9, a primary hydrogen peroxide absorption tank 10, a cooling coil pipe 11, a gas outlet pipeline II 12, a one-way valve 13, a secondary hydrogen peroxide absorption tank 14, a cooling coil pipe 15, a gas distribution coil pipe 16, a gas outlet pipeline III 17, an alkali liquor tank 18, a gas distribution disc 19, a secondary gas distribution cover 20, a discharging pipeline 21, a collecting pipeline 22, a gas distribution hole 23 and a gas distribution hole 24.
Detailed Description
The technical solution of the present invention is further explained by the following specific embodiments with reference to the accompanying drawings.
As shown in fig. 1-4, this acid gas absorbing device includes acid gas conveying line 2 and lye tank 18 with the enrichment facility intercommunication, be equipped with condenser 1 on the acid gas conveying line 2, the end and the gas-liquid separation jar 3 intercommunication of acid gas conveying line 2, the bottom that one-level hydrogen peroxide solution absorption tank 10 was inserted to gas outlet line I7 end of gas-liquid separation jar 3, the bottom that second grade hydrogen peroxide solution absorption tank 14 was inserted to gas outlet line II 12 end of one-level hydrogen peroxide solution absorption tank 10, the terminal alkali tank 18 that inserts of gas outlet line III 17 of second grade hydrogen peroxide solution absorption tank 14, be equipped with cooling coil 11, 15 in one-level hydrogen peroxide solution absorption tank 10 and the second grade hydrogen peroxide solution absorption tank 14 respectively, cooling coil 11, 15's both ends are stretched out the jar body and are connected with refrigerating fluid circulation system.
In this embodiment, the first-stage hydrogen peroxide solution absorption tank 10 and the second-stage hydrogen peroxide solution absorption tank 14 have the same structure, the top is provided with a gas outlet communicated with a gas outlet pipeline II 12 or a gas outlet pipeline III 17, and the bottom is provided with a discharge opening. The tail ends of the air outlet pipeline I7 and the air outlet pipeline II 12 are respectively communicated with air distribution coil pipes 9 and 16 arranged in a first-stage hydrogen peroxide absorption tank 10 and a second-stage hydrogen peroxide absorption tank 14, and air distribution holes 23 are uniformly formed in the pipe walls of the air distribution coil pipes 9 and 16. And the air outlet pipeline I7 and the air outlet pipeline II 12 are respectively provided with a one-way valve 8 and a one-way valve 13. The tail end of the air outlet pipeline III 17 is provided with an air distribution disc 19, the lower surface of the air distribution disc 19 is provided with a plurality of air distribution holes 24 around the center, the outer side of the air distribution disc 19 is provided with a secondary air distribution cover 20, and the lower edge of the secondary air distribution cover 20 is lower than the lower surface of the air distribution disc 19 and is close to the bottom surface of the lye tank 18. So that the gas firstly passes through the alkali liquor in the secondary gas distribution cover 20 and then diffuses to the alkali liquor outside the secondary gas distribution cover 20, and the reaction absorption effect is enhanced.
The gas-liquid separation tank 3 comprises a horizontal tank body and a guide plate group arranged in the tank along the length direction of the horizontal tank body, the guide plate group consists of an upper guide plate 4 connected with the upper part of the horizontal tank body and a lower guide plate 5 connected with the lower part of the horizontal tank body, the upper guide plate 4 and the lower guide plate 5 are arranged in a staggered mode to form a snake-shaped guide channel 6, the tail end of the acid gas conveying pipeline 2 is connected with the top surface of the gas-liquid separation tank 3 and is positioned at the inlet side of the snake-shaped guide channel 6, the starting end of the gas outlet pipeline I7 is connected with the top surface of the gas-liquid separation tank 3 and is positioned at the outlet side of the snake-shaped guide channel 6, a discharge pipeline 21 and a discharge valve are respectively arranged at positions between the two adjacent lower guide plates 5, the lower guide plates 5 and the.
The working principle is as follows:
the acid gas generated by concentration firstly enters a gas-liquid separation tank 3 through an acid gas conveying pipeline 2, and acid mist mixed in the acid gas is condensed into liquid drops to fall into the gas-liquid separation tank 3 under the action of a condenser 1 and a guide plate group; acid gas enters a first-stage hydrogen peroxide absorption tank 10 through a gas outlet pipeline I7 and a gas distribution coil pipe 9, part of the acid gas reacts with hydrogen peroxide in the tank to produce a dilute acid solution, and the other part of unabsorbed acid gas enters a second-stage hydrogen peroxide absorption tank 14 through a gas outlet pipeline II 12 and a gas distribution coil pipe 16 to react with hydrogen peroxide in the tank to continuously produce the dilute acid solution; and a small part of unabsorbed acid gas enters the alkali liquor tank 18 through the gas outlet pipeline III 17 and the gas distribution plate 19 to react with alkali liquor, and final absorption is completed.
Claims (6)
1. The utility model provides an acid gas absorbing device, includes acid gas conveying line and lye tank with the enrichment facility intercommunication, its characterized in that: the sour gas conveying pipeline is provided with a condenser, the tail end of the sour gas conveying pipeline is communicated with a gas-liquid separation tank, the tail end of an air outlet pipeline I of the gas-liquid separation tank is inserted into the bottom of a first-stage hydrogen peroxide solution absorption tank, the tail end of an air outlet pipeline II of the first-stage hydrogen peroxide solution absorption tank is inserted into the bottom of a second-stage hydrogen peroxide solution absorption tank, the tail end of an air outlet pipeline III of the second-stage hydrogen peroxide solution absorption tank is inserted into a lye tank, cooling coils are arranged in the first-stage hydrogen peroxide solution absorption tank and the second-stage hydrogen peroxide solution absorption tank respectively.
2. The acid gas absorption apparatus according to claim 1, wherein: the structure of the first-stage hydrogen peroxide solution absorption tank is the same as that of the second-stage hydrogen peroxide solution absorption tank, the top of the first-stage hydrogen peroxide solution absorption tank is provided with a gas outlet communicated with the gas outlet pipeline II or the gas outlet pipeline III, and the bottom of the first-stage hydrogen peroxide solution absorption tank is provided with a discharge opening.
3. The acid gas absorption apparatus according to claim 1, wherein: the tail ends of the air outlet pipeline I and the air outlet pipeline II are respectively communicated with an air distribution coil pipe arranged in the first-stage hydrogen peroxide absorption tank and the second-stage hydrogen peroxide absorption tank, and air distribution holes are uniformly formed in the pipe wall of the air distribution coil pipe.
4. The acid gas absorption apparatus according to claim 1, wherein: and the air outlet pipeline I and the air outlet pipeline II are respectively provided with a one-way valve.
5. The acid gas absorption apparatus according to claim 1, wherein: the gas-liquid separation tank comprises a horizontal tank body and a guide plate group arranged in the tank along the length direction of the horizontal tank body, the guide plate group consists of an upper guide plate connected with the upper part of the horizontal tank body and a lower guide plate connected with the lower part of the horizontal tank body, the upper guide plate and the lower guide plate are arranged in a staggered mode to form a snake-shaped guide channel, the tail end of the acid gas conveying pipeline is connected with the top surface of the gas-liquid separation tank and is located at the inlet side of the snake-shaped guide channel, the starting end of the gas outlet pipeline I is connected with the top surface of the gas-liquid separation tank and is located at the outlet side of the snake-shaped guide channel, discharging pipelines and discharging valves are respectively arranged between the adjacent two lower guide plates, the lower guide plates and the sealing end.
6. The acid gas absorption apparatus according to claim 1, wherein: the tail end of the gas outlet pipeline III is provided with a gas distribution disc, the lower surface of the gas distribution disc is provided with a plurality of gas distribution holes around the center, the outer side of the gas distribution disc is provided with a secondary gas distribution cover, and the lower edge of the secondary gas distribution cover is lower than the lower surface of the gas distribution disc and is close to the bottom surface of the lye tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922178200.7U CN211246091U (en) | 2019-12-09 | 2019-12-09 | Sour gas absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922178200.7U CN211246091U (en) | 2019-12-09 | 2019-12-09 | Sour gas absorption device |
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| CN211246091U true CN211246091U (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922178200.7U Active CN211246091U (en) | 2019-12-09 | 2019-12-09 | Sour gas absorption device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112619399A (en) * | 2020-12-18 | 2021-04-09 | 浙江解氏新材料股份有限公司 | Tail gas treatment method in nitrosyl sulfuric acid preparation process |
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2019
- 2019-12-09 CN CN201922178200.7U patent/CN211246091U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112619399A (en) * | 2020-12-18 | 2021-04-09 | 浙江解氏新材料股份有限公司 | Tail gas treatment method in nitrosyl sulfuric acid preparation process |
| CN112619399B (en) * | 2020-12-18 | 2022-07-12 | 浙江解氏新材料股份有限公司 | Tail gas treatment method in nitrosyl sulfuric acid preparation process |
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