CN219764905U - Device for automatically treating triethylamine and dichloroethane in tail gas - Google Patents
Device for automatically treating triethylamine and dichloroethane in tail gas Download PDFInfo
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- CN219764905U CN219764905U CN202321012820.3U CN202321012820U CN219764905U CN 219764905 U CN219764905 U CN 219764905U CN 202321012820 U CN202321012820 U CN 202321012820U CN 219764905 U CN219764905 U CN 219764905U
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- tail gas
- pipe
- pipeline
- desorption
- valve
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- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 title claims abstract description 51
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000001179 sorption measurement Methods 0.000 claims abstract description 74
- 238000003795 desorption Methods 0.000 claims abstract description 66
- 238000011084 recovery Methods 0.000 claims abstract description 37
- 239000011347 resin Substances 0.000 claims abstract description 31
- 229920005989 resin Polymers 0.000 claims abstract description 31
- 239000003960 organic solvent Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 68
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a device for automatically treating triethylamine and dichloroethane in tail gas, which belongs to the field of tail gas treatment, and comprises a tail gas conveying pipeline and three resin adsorption towers, wherein the three resin adsorption towers are connected in series in pairs, branch pipes are arranged on the tail gas conveying pipeline and are respectively communicated with the three resin adsorption towers, and valves are arranged on the branch pipes; the device comprises a tail gas output pipeline, a desorption pipeline and a steam pipeline, wherein an adsorption fan is arranged at the tail end of the tail gas output pipeline, a desorption fan is arranged at an air inlet of the desorption pipeline, branch pipes are respectively arranged on the three pipelines and are respectively communicated with three resin adsorption towers, and valves are respectively arranged on the branch pipes; the desorption recovery pipeline, the desorption recovery pipeline end is equipped with condenser and collection tank, is equipped with desorption recovery branch pipe on the desorption recovery pipeline, and three desorption recovery branch pipes are connected with the pipeline of establishing ties respectively. Through the structure, the organic solvent in the tail gas can be effectively recycled.
Description
Technical Field
The utility model relates to the field of tail gas treatment, in particular to a device for automatically treating triethylamine and dichloroethane in tail gas.
Background
In chemical production, various organic solvents are commonly used, and the tail gas discharged due to the characteristics of low boiling point and volatility contains a large amount of organic solvent gas, so that the following problems exist in the use of conventional frozen brine condensing solvents due to higher gas flow rate in a tail gas pipeline: firstly, the water in the tail gas can freeze in the environment to block the tail gas pipeline, and the system cannot operate; secondly, the gas flow rate of the tail gas pipeline is high, the condensation efficiency of the conventional condenser is low, and a lot of high-concentration organic gas can enter the tail end through the condenser, so that the tail gas is discharged beyond the standard; third, if RCO or RTO devices are added at the tail gas end, the hardware investment and annual operating costs are not small economic burden to the enterprise.
Aiming at the problems in the prior art, the utility model designs and manufactures a device for automatically treating triethylamine and dichloroethane in tail gas to overcome the defects.
Disclosure of Invention
For the problems in the prior art, the device for automatically treating the triethylamine and the dichloroethane in the tail gas can effectively recycle the organic solvent in the tail gas.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the device for automatically treating the triethylamine and the dichloroethane in the tail gas comprises a tail gas conveying pipeline and three resin adsorption towers, wherein three tail gas conveying branch pipes are arranged on the tail gas conveying pipeline and are respectively communicated with the three resin adsorption towers, and first valves are arranged on the three tail gas conveying branch pipes;
the tail gas output pipeline is provided with an adsorption fan at the tail end, three tail gas output branch pipes are arranged on the tail gas output pipeline and are respectively communicated with the three resin adsorption towers, and second valves are arranged on the three tail gas output branch pipes;
the desorption pipeline is provided with a desorption fan at an air inlet, three desorption branch pipes are arranged on the desorption pipeline and are respectively communicated with the three resin adsorption towers, and third valves are arranged on the three desorption branch pipes;
the steam pipeline is provided with three steam branch pipes which are respectively communicated with the three resin adsorption towers, and the three steam branch pipes are provided with fourth valves;
the three resin adsorption towers are respectively arranged as a first adsorption tower, a second adsorption tower and a third adsorption tower, a first serial pipe is communicated with a tail gas conveying branch pipe between the first adsorption tower and a first valve at the bottom, a tail gas output branch pipe between the second adsorption tower and a second valve above is connected with the other end of the first serial pipe, and a fifth valve is arranged on the first serial pipe; a second serial pipe is communicated with a tail gas conveying branch pipe between the second adsorption tower and the first valve at the bottom, a tail gas output branch pipe between the third adsorption tower and the second valve above is connected with the other end of the second serial pipe, and a sixth valve is arranged on the second serial pipe; a third serial pipe is communicated with a tail gas conveying branch pipe between the third adsorption tower and the first valve at the bottom, a tail gas output branch pipe between the first adsorption tower and the second valve above is connected with the other end of the third serial pipe, and a seventh valve is arranged on the third serial pipe;
the desorption recovery pipeline, desorption recovery pipeline end is equipped with condenser and collecting vessel, be equipped with three desorption recovery branch pipe on the desorption recovery pipeline, be equipped with eighth valve on the desorption recovery branch pipe, three the desorption recovery branch pipe respectively with first tandem tube, second tandem tube, third tandem tube intercommunication.
Preferably, the collecting tank is provided with a blow-down pipe, the blow-down pipe is communicated with the input end of the tail gas conveying pipeline, and the blow-down pipe is provided with a blow-down valve.
Preferably, at least two condensers are arranged, and the two condensers are arranged on the desorption recovery pipeline in series.
Preferably, the connection position of the desorption recovery branch pipe and the first serial pipe is arranged on the first serial pipe between the fifth valve and the connected tail gas conveying branch pipe;
the communication position of the desorption recovery branch pipe and the second serial pipe is arranged on the second serial pipe between the sixth valve and the connected tail gas conveying branch pipe;
the connection position of the desorption recovery branch pipe and the third serial pipe is arranged on the third serial pipe between the seventh valve and the connected tail gas conveying branch pipe.
Preferably, the input end of the tail gas conveying pipeline is provided with an alkaline washing tower.
Preferably, the adsorption fan is provided with a VOC detector.
The utility model has the advantages that:
according to the utility model, three resin adsorption towers are arranged reasonably, so that when any two of the three resin adsorption towers are in a serial adsorption transition state, the third resin adsorption tower can be in a desorption state, a desorption fan is used as power during desorption, the adsorption resin is desorbed by using steam, and the desorbed triethylamine and dichloroethane gas are cooled into liquid through a condenser, enter a collection tank and are then transported back to a workshop for use.
Drawings
Fig. 1 is a schematic diagram of an apparatus for automatically treating triethylamine and dichloroethane in tail gas.
In the figure: 1-first adsorption tower, 2-second adsorption tower, 3-third adsorption tower, 4-alkaline washing tower, 5-tail gas delivery pipeline, 6-tail gas delivery branch pipe, 7-first valve, 8-adsorption fan, 9-tail gas delivery pipeline, 10-tail gas delivery branch pipe, 11-second valve, 12-desorption fan, 13-desorption pipeline, 14-desorption branch pipe, 15-third valve, 16-steam pipeline, 17-steam branch pipe, 18-fourth valve, 19-desorption recovery pipeline, 20-desorption recovery branch pipe, 21-eighth valve, 22-first series pipe, 23-fifth valve, 24-second series pipe, 25-sixth valve, 26-third series pipe, 27-seventh valve, 28-condenser, 29-collection tank, 30-blow-down pipe, 31-blow down valve.
Detailed Description
The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
As shown in fig. 1, an automatic device for treating triethylamine and dichloroethane in tail gas comprises a tail gas conveying pipeline 5 and three resin adsorption towers, wherein three tail gas conveying branch pipes 6 are arranged on the tail gas conveying pipeline 5 and are respectively communicated with the three resin adsorption towers, and first valves 7 are arranged on the three tail gas conveying branch pipes 6;
the output port end of the resin adsorption tower is provided with a tail gas output pipeline 9, a desorption pipeline 13 and a steam pipeline 16, the tail end of the tail gas output pipeline 9 is provided with an adsorption fan 8, the tail gas output pipeline 9 is provided with three tail gas output branch pipes 10 which are respectively communicated with the three resin adsorption towers, and the three tail gas output branch pipes 10 are respectively provided with a second valve 11; the air inlet of the desorption pipeline 13 is provided with a desorption fan 12, the desorption pipeline 13 is provided with three desorption branch pipes 14 which are respectively communicated with the three resin adsorption towers, and the three desorption branch pipes 14 are provided with third valves 15; three steam branch pipes 17 are arranged on the steam pipeline 16 and are respectively communicated with the three resin adsorption towers, and fourth valves 18 are arranged on the three steam branch pipes 17;
the three resin adsorption towers are respectively arranged into a first adsorption tower 1, a second adsorption tower 2 and a third adsorption tower 3, a first serial pipe 22 is communicated with an exhaust gas conveying branch pipe 6 between the first adsorption tower 1 and a first valve 7 at the bottom, the other end of the first serial pipe 22 is connected with an exhaust gas output branch pipe 10 between the second adsorption tower 2 and a second valve 11 above, and a fifth valve 23 is arranged on the first serial pipe 22; a second serial pipe 24 is communicated with the tail gas conveying branch pipe 6 between the second adsorption tower 2 and the first valve 7 at the bottom, the other end of the second serial pipe 24 is connected with the tail gas output branch pipe 10 between the third adsorption tower 3 and the second valve 11 above, and a sixth valve 25 is arranged on the second serial pipe 24; a third serial pipe 26 is communicated with the tail gas conveying branch pipe 6 between the third adsorption tower 3 and the first valve 7 at the bottom, the tail gas output branch pipe 10 between the first adsorption tower 1 and the second valve 11 above is connected with the other end of the third serial pipe 26, and a seventh valve 27 is arranged on the third serial pipe 26;
still include desorption recovery pipeline 19, desorption recovery pipeline 19 end is equipped with condenser 28 and collection tank 29, is equipped with three desorption recovery branch pipe 20 on the desorption recovery pipeline 19, is equipped with eighth valve 21 on the desorption recovery branch pipe 20, and three desorption recovery branch pipe 20 communicate with first tandem tube 22, second tandem tube 24, third tandem tube 26 respectively.
The resin adsorption towers are three, when any two of the three adsorption towers are in a serial adsorption transition state, the third adsorption tower can be in a desorption state by reasonably arranging pipelines, the desorption fan 12 is used as power during desorption, the adsorption resin is desorbed by using steam, and the desorbed triethylamine and dichloroethane gases are cooled into liquid by the condenser 28, enter the collection tank 29 and are then conveyed back to a workshop for use.
The collecting tank 29 of the utility model is preferably provided with a blow-down pipe 30, the blow-down pipe 30 is communicated with the input end of the tail gas conveying pipeline 5, and the blow-down pipe 30 is provided with a blow-down valve 31 so as to continuously treat the blown-down tail gas again.
At least two condensers 28 are arranged, and the two condensers 28 are arranged on the desorption recovery pipeline 19 in series, so that the condensation effect is ensured.
The connection position of the desorption recovery branch pipe 20 and the first serial pipe 22 is arranged on the first serial pipe 22 between the fifth valve 23 and the connected tail gas conveying branch pipe 6; the connection position of the desorption recovery branch pipe 20 and the second serial pipe 24 is arranged on the second serial pipe 24 between the sixth valve 25 and the connected tail gas conveying branch pipe 6; the connection position of the desorption recovery branch pipe 20 and the third serial pipe 26 is arranged on the third serial pipe 26 between the seventh valve 27 and the connected tail gas conveying branch pipe 6, so as to ensure the normal adsorption operation of the two resin adsorption towers and the desorption operation of the other resin adsorption tower.
An alkaline tower 4 is arranged at the input end of the tail gas conveying pipeline 5, and the generated tail gas firstly passes through the alkaline tower 4 to remove acidic substances possibly contained. The VOC detector is arranged at the adsorption fan 8 so as to monitor whether the VOC concentration of the exhaust gas after treatment reaches the standard.
It should be understood that these examples are for the purpose of illustrating the utility model only and are not intended to limit the scope of the utility model. Furthermore, it is to be understood that various changes, modifications and/or variations may be made by those skilled in the art after reading the technical content of the present utility model, and that all such equivalents are intended to fall within the scope of the present utility model as defined in the appended claims.
Claims (6)
1. The device for automatically treating the triethylamine and the dichloroethane in the tail gas is characterized by comprising a tail gas conveying pipeline and three resin adsorption towers, wherein three tail gas conveying branch pipes are arranged on the tail gas conveying pipeline and are respectively communicated with the three resin adsorption towers, and first valves are arranged on the three tail gas conveying branch pipes;
the tail gas output pipeline is provided with an adsorption fan at the tail end, three tail gas output branch pipes are arranged on the tail gas output pipeline and are respectively communicated with the three resin adsorption towers, and second valves are arranged on the three tail gas output branch pipes;
the desorption pipeline is provided with a desorption fan at an air inlet, three desorption branch pipes are arranged on the desorption pipeline and are respectively communicated with the three resin adsorption towers, and third valves are arranged on the three desorption branch pipes;
the steam pipeline is provided with three steam branch pipes which are respectively communicated with the three resin adsorption towers, and the three steam branch pipes are provided with fourth valves;
the three resin adsorption towers are respectively arranged as a first adsorption tower, a second adsorption tower and a third adsorption tower, a first serial pipe is communicated with a tail gas conveying branch pipe between the first adsorption tower and a first valve at the bottom, a tail gas output branch pipe between the second adsorption tower and a second valve above is connected with the other end of the first serial pipe, and a fifth valve is arranged on the first serial pipe; a second serial pipe is communicated with a tail gas conveying branch pipe between the second adsorption tower and the first valve at the bottom, a tail gas output branch pipe between the third adsorption tower and the second valve above is connected with the other end of the second serial pipe, and a sixth valve is arranged on the second serial pipe; a third serial pipe is communicated with a tail gas conveying branch pipe between the third adsorption tower and the first valve at the bottom, a tail gas output branch pipe between the first adsorption tower and the second valve above is connected with the other end of the third serial pipe, and a seventh valve is arranged on the third serial pipe;
the desorption recovery pipeline, desorption recovery pipeline end is equipped with condenser and collecting vessel, be equipped with three desorption recovery branch pipe on the desorption recovery pipeline, be equipped with eighth valve on the desorption recovery branch pipe, three the desorption recovery branch pipe respectively with first tandem tube, second tandem tube, third tandem tube intercommunication.
2. The device for automatically treating triethylamine and dichloroethane in tail gas according to claim 1, wherein the collection tank is provided with a blow-down pipe which is communicated with the input end of the tail gas conveying pipeline, and the blow-down pipe is provided with a blow-down valve.
3. The device for automatically treating triethylamine and dichloroethane according to claim 1, wherein at least two condensers are provided, and the two condensers are serially arranged on the desorption recovery line.
4. An apparatus for automatically treating triethylamine and dichloroethane in tail gas according to claim 1, wherein the connection between the desorption recovery branch pipe and the first tandem pipe is provided on the first tandem pipe between the fifth valve and the connected tail gas delivery branch pipe;
the communication position of the desorption recovery branch pipe and the second serial pipe is arranged on the second serial pipe between the sixth valve and the connected tail gas conveying branch pipe;
the connection position of the desorption recovery branch pipe and the third serial pipe is arranged on the third serial pipe between the seventh valve and the connected tail gas conveying branch pipe.
5. An apparatus for automatically treating triethylamine and dichloroethane according to claim 1, wherein the input end of the tail gas transfer conduit is provided with an alkaline scrubber.
6. The device for automatically treating triethylamine and dichloroethane according to claim 1, wherein the adsorption blower is provided with a VOC detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321012820.3U CN219764905U (en) | 2023-04-28 | 2023-04-28 | Device for automatically treating triethylamine and dichloroethane in tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321012820.3U CN219764905U (en) | 2023-04-28 | 2023-04-28 | Device for automatically treating triethylamine and dichloroethane in tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219764905U true CN219764905U (en) | 2023-09-29 |
Family
ID=88134516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321012820.3U Active CN219764905U (en) | 2023-04-28 | 2023-04-28 | Device for automatically treating triethylamine and dichloroethane in tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219764905U (en) |
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2023
- 2023-04-28 CN CN202321012820.3U patent/CN219764905U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An automated device for treating triethylamine and dichloroethane in exhaust gas Granted publication date: 20230929 Pledgee: Shandong Changyi rural commercial bank Limited by Share Ltd. Pledgor: WEIFANG RUN'AN CHEMICAL TECHNOLOGY CO.,LTD. Registration number: Y2024980022029 |