CN211514052U - Tail gas demisting device of acid gas absorption tower - Google Patents
Tail gas demisting device of acid gas absorption tower Download PDFInfo
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- CN211514052U CN211514052U CN201921742957.8U CN201921742957U CN211514052U CN 211514052 U CN211514052 U CN 211514052U CN 201921742957 U CN201921742957 U CN 201921742957U CN 211514052 U CN211514052 U CN 211514052U
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- absorption tower
- cooling water
- demisting
- pipe
- acid gas
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Abstract
The utility model discloses a tail gas demisting device of an acid gas absorption tower, which comprises a duplex acid gas absorption tower and a demisting system; the demisting system comprises a demisting tower and a pipeline system; the bottom of the demisting tower is provided with a water storage cavity, the middle part and the upper part of the demisting tower are provided with water ball fillers and cooling water spray pipes, and the top of the demisting tower is provided with an air outlet; a demister and a PH probe are arranged in the air outlet; the pipeline system comprises a dilute alkali liquor supply pipe and a cooling water circulating pipe; an electric valve is arranged on the dilute alkali liquor supply pipe; one end of the cooling water circulating pipe is connected with the bottom of the water storage cavity, and the other end of the cooling water circulating pipe is connected with the cooling water spraying pipe; a circulating pump is arranged on the cooling water circulating pipe; an air guide pipe is connected between the duplex acid gas absorption tower and the demisting system; an exhaust fan is arranged on the air guide pipe; the defogging system is also provided with a controller. The utility model discloses the device is simple and practical, can eliminate the moisture of sour gas absorption tower tail gas, can also reduce tail gas simultaneously and remain sour gas, and work efficiency is high, is fit for using widely.
Description
Technical Field
The utility model belongs to the technical field of industrial waste gas handles, a sour gas absorption tower tail gas defogging device is related to.
Background
In the production process of the electrode aluminum foil for the electrolytic capacitor, a production line can generate a large amount of high-temperature acid gas, and the acid gas is mainly treated by an acid gas absorption tower and then discharged into the atmosphere in the industry at present. The acid gas absorption tower mainly uses dilute alkali liquor to perform neutralization reaction with acid gas, the temperature of tail gas discharged from the acid gas absorption tower after the reaction is very high, the tail gas can be liquefied into water mist at the tower mouth when the tail gas is cooled, and the water mist is more obvious particularly when the temperature is low. The resident around the mill often misunderstands that industrial waste gas is discharged, thereby carrying out environmental protection complaints, bringing great negative effects to enterprises, and unnecessary trouble, and sometimes a small amount of acid gas still remains in the exhaust tail gas, and the direct discharge can influence the environment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art not enough, provide an sour gas absorption tower tail gas defogging device, the device simple structure, convenient operation can reach the purpose that remains sour gas in sour gas absorption tower mouth defogging and the absorption tail gas, can play the effect of reserve sour gas absorption tower under the production line sour gas absorption tower abnormal conditions again. Meanwhile, the demisting tower generates small resistance, an exhaust system of the acid gas absorption tower cannot be influenced, and demisting efficiency is high, so that the acid gas absorption tower is suitable for popularization and use.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a tail gas demisting device for an acid gas absorption tower comprises a duplex acid gas absorption tower and a demisting system; the duplex acid gas absorption tower comprises an absorption tower I and an absorption tower II which are connected with each other; the demisting system comprises a demisting tower and a pipeline system; the bottom of the demisting tower is provided with a water storage cavity, the middle part and the upper part of the demisting tower are alternately provided with at least two groups of water ball fillers and cooling water spray pipes, and the top of the demisting tower is provided with an air outlet; a cooling water adding port is formed in the water storage cavity; a demister and a PH probe are arranged in the air outlet; the pipeline system comprises a dilute alkali liquor supply pipe and a cooling water circulating pipe; an electric valve is arranged on the dilute alkali liquor supply pipe; one end of the cooling water circulating pipe is connected with the bottom of the water storage cavity, and the other end of the cooling water circulating pipe is divided into branch pipes which are connected with each group of cooling water spraying pipes; a circulating pump is arranged on the cooling water circulating pipe; an air guide pipe is connected between the duplex acid gas absorption tower and the demisting system; an exhaust fan is arranged on the air guide pipe; the demisting system is also provided with a controller established based on a PLC; the exhaust fan, the PH probe, the electric valve and the circulating pump are all connected with the controller in a conventional mode. The cooling water circulating pipe is provided with a spiral spray head, so that cooling water can be atomized, and the cooling effect is enhanced; a liquid level sensor is arranged in the water storage cavity; the liquid level sensor is connected with the controller in a conventional mode; the demister can be a device with a demisting function, such as a blade demister or a plate demister; the dilute alkali liquor supply pipe is connected with a dispensing barrel for containing dilute alkali liquor; the water ball filler is a spheroid surrounded by grids, and the contact area between the tail gas and cooling water can be increased after the tail gas passes through the sphere.
As a further technical improvement, the pipeline system on the demisting system also comprises a cooling water supply pipe; one end of the cooling water supply pipe is connected with the cooling water adding port, and the other end of the cooling water supply pipe is connected with the tap water pipeline. The cooling water supply pipe provides cooling water for the water storage cavity at the bottom of the demisting tower, and the source of the cooling water is tap water.
As a further technical improvement, the pipeline system on the demisting system also comprises an overflow pipe; one end of the overflow pipe is connected to the top of the water storage cavity, and the other end of the overflow pipe is communicated with a sewage treatment pipeline of a common factory. And if the water level in the water storage cavity is too high, water flows into the sewage treatment pipeline from the overflow pipe and finally enters the sewage treatment system.
As a further technical improvement, the duplex acid gas absorption tower is also provided with a three-way pipe; and two ends of the three-way pipe are respectively connected with the absorption tower I and the absorption tower II, and the other end of the three-way pipe is connected with the air guide pipe. The three-way pipe plays a role in connection.
As a further technical improvement, ball valves are arranged on the cooling water circulating pipe and the cooling water supply pipe. The ball valve plays a role in controlling the on-off of the pipeline.
As a further technical improvement, a group of air valves are respectively arranged on branches of the three-way pipe connected with the absorption tower I and the absorption tower II. When one of the two production lines is stopped, the air valve of the corresponding production line can be closed, so that the operation of the acid gas absorption tower of the other production line is not influenced.
The utility model discloses a theory of operation:
the exhaust fan pumps the tail gas treated by the absorption tower I and the absorption tower II into the bottom of the demisting tower through the air guide pipe; the tail gas upwards sprays the cooling water in the demisting tower through at least two layers of water ball fillers and cooling water spray pipes, enters an air outlet at the top of the demisting tower, and enters the atmosphere after moisture is removed by a demister; at the moment, a PH probe at the gas outlet detects the PH value in the tail gas, if the tail gas is acidic, a signal is fed back to a controller, the controller controls an electric valve to be opened, and dilute alkali liquor is added into cooling water through a cooling water adding port; the cooling water at the bottom of the demisting tower is pumped by the circulating pump and is supplied to the cooling water spray pipe through the cooling water circulating pipe, and the cooling water spray pipe sprays atomized cooling water to achieve the effects of cooling and neutralizing acid liquor.
Compared with the prior art, the utility model discloses the beneficial effect who possesses:
1. the utility model discloses a setting of defogging tower can reduce the temperature of sour gas absorption tower tail gas to steam in the tail gas can be detached, the problem of tail gas condensation fog is eliminated, avoids the enterprise by the misunderstanding for discharging pollutants, and it is troublesome to reduce unnecessary.
2. The utility model discloses a PH probe detectable defogging tower export gaseous PH value to add dilute alkali liquid in the cooling water, the acidic material in the neutralization waste gas reduces the pollution of discharge gas to atmosphere.
3. The utility model discloses it sets up ingenious flexibility, when an arbitrary sour gas absorption tower broke down, the defogging tower can regard as reserve sour gas absorption tower to use, guarantees production line normal operating.
4. The utility model discloses a defogging tower gas circuit pipeline simple structure, the windage is little, when getting rid of sour gas absorption tower tail gas, does not influence the emission of sour gas absorption tower tail gas, is fit for using widely.
Drawings
Fig. 1 is a schematic view of the overall structure of the device.
Reference numerals: 1-duplex acid gas absorption tower, 2-demisting system, 3-absorption tower I, 4-absorption tower II, 5-air guide pipe, 6-exhaust fan, 7-demisting tower, 8-water storage chamber, 9-water ball filler, 10-cooling water spray pipe, 11-air outlet, 12-demister, 13-PH probe, 14-dilute alkali liquor supply pipe, 15-electric valve, 16-cooling water circulation pipe, 17-cooling water supply pipe, 18-circulating pump, 19-overflow pipe, 20-ball valve, 21-air valve, 22-cooling water addition port, 23-three-way pipe and 24-controller.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1:
as shown in fig. 1, a tail gas demisting device for an acid gas absorption tower comprises a duplex acid gas absorption tower 1 and a demisting system 2; the duplex acid gas absorption tower 1 comprises an absorption tower I3 and an absorption tower II 4 which are connected with each other; the demisting system 2 comprises a demisting tower 7 and a pipeline system; the bottom of the demisting tower 7 is provided with a water storage cavity 8, the middle part and the upper part are alternately provided with at least two groups of water ball fillers 9 and cooling water spray pipes 10, and the top is provided with an air outlet 11; a cooling water adding port 22 is formed in the water storage cavity 8; a demister 12 and a PH probe 13 are arranged in the air outlet 11; the pipeline system comprises a dilute alkali liquor supply pipe 14 and a cooling water circulating pipe 16; an electric valve 15 is arranged on the dilute alkali liquor supply pipe 14; one end of the cooling water circulating pipe 16 is connected with the bottom of the water storage cavity 8, and the other end of the cooling water circulating pipe is divided into branch pipes which are connected with each group of cooling water spraying pipes 10; a circulating pump 18 is arranged on the cooling water circulating pipe 16; an air guide pipe 5 is connected between the duplex acid gas absorption tower 1 and the demisting system 2; an exhaust fan 6 is arranged on the air guide pipe 5; the demisting system 2 is also provided with a controller 24 established based on a PLC; the suction fan 6, PH probe 13, electric valve 15 and circulation pump 18 are connected to a controller 24 in a conventional manner. The cooling water circulating pipe 16 is provided with a spiral spray nozzle which can atomize the cooling water and enhance the cooling effect; a liquid level sensor is arranged in the water storage cavity 8; the liquid level sensor is connected with the controller 24 in a conventional manner; the demister 12 can be a device with a demisting function, such as a vane demister or a plate demister; the dilute alkali liquor supply pipe 14 is connected with a dispensing barrel for containing dilute alkali liquor; the water ball filler 9 is a spheroid surrounded by grids, and the contact area of the tail gas and cooling water can be increased after the tail gas passes through the spheroid.
The pipeline system on the demisting system 2 also comprises a cooling water supply pipe 17; one end of the cooling water supply pipe 17 is connected to the cooling water addition port 22, and the other end is connected to a tap water pipe. The cooling water supply pipe 17 supplies cooling water to the water storage cavity 8 at the bottom of the demisting tower 7, and the source of the cooling water is tap water.
The duplex acid gas absorption tower 1 is also provided with a three-way pipe 23; two ends of the three-way pipe 23 are respectively connected with the absorption tower I3 and the absorption tower II 4, and the other end of the three-way pipe is connected with the air guide pipe 5. The three-way pipe 23 plays a role in connection.
The utility model discloses a theory of operation:
the exhaust fan 6 pumps the tail gas treated by the absorption tower I3 and the absorption tower II 4 into the bottom of the demisting tower 7 through the air guide pipe 5; the tail gas upwards passes through at least two layers of water ball fillers 9 and cooling water spray pipes 10 in the demisting tower 7 and then enters an air outlet 11 at the top of the demisting tower 7, and the tail gas enters the atmosphere after being subjected to moisture removal by a demister 12; at the moment, a PH probe 13 at the air outlet 11 detects the PH value in the tail gas, if the tail gas is acidic, a signal is fed back to a controller 24, the controller 24 controls an electric valve 15 to be opened, and dilute alkali liquor is added into the cooling water through a cooling water adding port 22; the cooling water at the bottom of the demisting tower 7 is pumped by the circulating pump 18 and is supplied to the cooling water spray pipe 10 through the cooling water circulating pipe 16, and the cooling water spray pipe 10 sprays atomized cooling water to achieve the effects of cooling and neutralizing acid liquor.
Example 2:
this example differs from example 1 in that: the pipeline system on the demisting system 2 also comprises an overflow pipe 19; one end of the overflow pipe 19 is connected with the top of the water storage cavity 8, and the other end is introduced into a sewage treatment pipeline of a common factory. When the water level in the water storage cavity 8 is too high, the water flows into the sewage treatment pipeline from the overflow pipe 19 and finally enters the sewage treatment system.
The method of use of this example is the same as example 1.
Example 3:
this example differs from example 2 in that: ball valves 20 are arranged on the cooling water circulating pipe 16 and the cooling water supply pipe 17. The ball valve 20 plays a role in controlling the on-off of the pipeline. And a group of air valves 21 are respectively arranged on the branches of the three-way pipe 23 connected with the absorption tower I3 and the absorption tower II 4. When one of the two production lines is stopped, the air valve 21 of the corresponding production line can be closed, so that the operation of the acid gas absorption tower of the other production line is not influenced.
The method of use of this example is the same as example 1.
Example 4:
this example differs from example 3 in that: the pipeline system on the demisting system 2 also comprises an overflow pipe 19; one end of the overflow pipe 19 is connected with the top of the water storage cavity 8, and the other end is introduced into a sewage treatment pipeline of a common factory. When the water level in the water storage cavity 8 is too high, the water flows into the sewage treatment pipeline from the overflow pipe 19 and finally enters the sewage treatment system. Ball valves 20 are arranged on the cooling water circulating pipe 16 and the cooling water supply pipe 17. The ball valve 20 plays a role in controlling the on-off of the pipeline. And a group of air valves 21 are respectively arranged on the branches of the three-way pipe 23 connected with the absorption tower I3 and the absorption tower II 4. When one of the two production lines is stopped, the air valve 21 of the corresponding production line can be closed, so that the operation of the acid gas absorption tower of the other production line is not influenced.
The method of use of this example is the same as example 1.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. A tail gas demisting device for an acid gas absorption tower comprises a duplex acid gas absorption tower (1) and a demisting system (2); the method is characterized in that: the duplex acid gas absorption tower (1) comprises an absorption tower I (3) and an absorption tower II (4) which are connected with each other; the demisting system (2) comprises a demisting tower (7) and a pipeline system; the bottom of the demisting tower (7) is provided with a water storage cavity (8), the middle part and the upper part are alternately provided with at least two groups of water ball fillers (9) and cooling water spray pipes (10), and the top is provided with an air outlet (11); a cooling water adding port (22) is arranged on the water storage cavity (8); a demister (12) and a PH probe (13) are arranged in the air outlet (11); the pipeline system comprises a dilute alkali liquor supply pipe (14) and a cooling water circulating pipe (16); an electric valve (15) is arranged on the dilute alkali liquor supply pipe (14); one end of the cooling water circulating pipe (16) is connected with the bottom of the water storage cavity (8), and the other end of the cooling water circulating pipe is divided into branch pipes which are connected with each group of cooling water spraying pipes (10); a circulating pump (18) is arranged on the cooling water circulating pipe (16); an air guide pipe (5) is connected between the duplex acid gas absorption tower (1) and the demisting system (2); an exhaust fan (6) is arranged on the air guide pipe (5); the demisting system (2) is also provided with a controller (24) established based on a PLC; the exhaust fan (6), the PH probe (13), the electric valve (15) and the circulating pump (18) are all connected with the controller (24).
2. The tail gas demisting device for the acid gas absorption tower as claimed in claim 1, wherein: the pipeline system on the demisting system (2) also comprises a cooling water supply pipe (17); one end of the cooling water supply pipe (17) is connected with the cooling water adding port (22), and the other end is connected with a tap water pipeline.
3. The tail gas demisting device for the acid gas absorption tower as claimed in claim 1, wherein: the pipeline system on the demisting system (2) also comprises an overflow pipe (19); one end of the overflow pipe (19) is connected with the top of the water storage cavity (8), and the other end of the overflow pipe is led into a sewage treatment pipeline of a common factory.
4. The tail gas demisting device for the acid gas absorption tower as claimed in claim 1, wherein: the duplex acid gas absorption tower (1) is also provided with a three-way pipe (23); and two ends of the three-way pipe (23) are respectively connected with the absorption tower I (3) and the absorption tower II (4), and the other end of the three-way pipe is connected with the air guide pipe (5).
5. The tail gas demisting device for the acid gas absorption tower as claimed in claim 2, wherein: ball valves (20) are arranged on the cooling water circulating pipe (16) and the cooling water supply pipe (17).
6. The acid gas absorption tower tail gas demisting device according to claim 4, wherein: and a group of air valves (21) are respectively arranged on branches of the three-way pipe (23) connected with the absorption tower I (3) and the absorption tower II (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921742957.8U CN211514052U (en) | 2019-10-17 | 2019-10-17 | Tail gas demisting device of acid gas absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921742957.8U CN211514052U (en) | 2019-10-17 | 2019-10-17 | Tail gas demisting device of acid gas absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211514052U true CN211514052U (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921742957.8U Active CN211514052U (en) | 2019-10-17 | 2019-10-17 | Tail gas demisting device of acid gas absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211514052U (en) |
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2019
- 2019-10-17 CN CN201921742957.8U patent/CN211514052U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220817 Address after: 834034 no.18-032, Industrial Avenue, huyanghe Industrial Park, Xinjiang Uygur Autonomous Region Patentee after: Xinjiang guangtou Guidong Electronic Technology Co.,Ltd. Address before: No. 39, Jiangbei East Road, Hezhou City, Guangxi Zhuang Autonomous Region Patentee before: GUANGXI HEZHOU GUIDONG ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |