CN220597096U - Recovery treatment device for waste water containing n-butyl acetate - Google Patents
Recovery treatment device for waste water containing n-butyl acetate Download PDFInfo
- Publication number
- CN220597096U CN220597096U CN202322246374.9U CN202322246374U CN220597096U CN 220597096 U CN220597096 U CN 220597096U CN 202322246374 U CN202322246374 U CN 202322246374U CN 220597096 U CN220597096 U CN 220597096U
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- CN
- China
- Prior art keywords
- phase separator
- tank
- condenser
- waste water
- butyl acetate
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- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 239000002351 wastewater Substances 0.000 title claims abstract description 54
- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 238000004821 distillation Methods 0.000 claims abstract description 12
- 239000003507 refrigerant Substances 0.000 claims abstract description 9
- 238000010025 steaming Methods 0.000 claims description 7
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a waste water recovery treatment device containing n-butyl acetate, which comprises a waste water collecting tank, wherein the waste water collecting tank is connected with a crude distillation tower through a preheating structure, the top end of the crude distillation tower is connected with a first condenser through a connecting pipe and then connected with a first phase separator, the lower end of the first phase separator is connected with a first rectifying tower, the upper part of the first rectifying tower is connected with a second phase separator through a second condenser, the lower end of the second phase separator is connected with a second rectifying tower, the upper end of the second rectifying tower is connected with a third phase separator through a third condenser, and the third phase separator is connected with a recovery tank. The gas with heat at the top of the crude distillation tower and the rectifying tower is used for exchanging heat with the wastewater, so that the preheating time and energy consumption of the wastewater are reduced, and the self-condensing time is shortened; meanwhile, the refrigerant subjected to heat exchange by the condenser enters the auxiliary jacket, so that heat can be transferred to the wastewater, the heating time of the wastewater is reduced, and the energy consumption is reduced while the recovery treatment of the n-butyl acetate in the wastewater is ensured.
Description
Technical Field
The utility model relates to the technical field of n-butyl acetate recovery, in particular to a device for recovering and treating wastewater containing n-butyl acetate.
Background
N-butyl acetate is an organic compound, is colorless and transparent liquid with pleasant fruity smell, and is an excellent organic solvent; in the use process, a large amount of waste water containing n-butyl acetate can be generated, if the waste water is directly discharged, the waste of n-butyl acetate resources can be caused, and the problem of environmental pollution caused by substandard discharge also exists. In order to solve the problems, the prior Chinese patent utility model with the patent number of 202121290695.3 discloses a butyl acetate recovery device, which is used for treating waste water containing n-butyl acetate by arranging three groups of rectifying towers so as to achieve the aim of recovering ethyl acetate; however, the structure uses a plurality of groups of preheaters and condensers, and the preheaters and the condensers are often arranged independently, so that the heat recovery and utilization capacity is low, and the problems of high power consumption and low energy utilization rate exist.
Disclosure of Invention
The utility model aims at overcoming the defects in the prior art, and discloses a recovery and treatment device for wastewater containing n-butyl acetate, which can reduce energy consumption and ensure stable recovery of n-butyl acetate.
In order to achieve the purpose, the utility model relates to a device for recycling and treating waste water containing n-butyl acetate, which adopts the following technical scheme:
the utility model provides a contain n-butyl acetate waste water recovery processing device, includes the waste water collecting tank, and the waste water collecting tank is used for collecting the waste water that contains n-butyl acetate, the waste water collecting tank is connected in the thick steaming tower through preheating structure, and thick steaming tower top is provided with the connecting pipe, and the connecting pipe is connected in first condenser reconnection in first phase separator, and first phase separator lower extreme is connected in first rectifying column, and first rectifying column top is connected in second phase separator through the second condenser, and second phase separator lower extreme is connected in second rectifying column, and second rectifying column upper end is connected in third phase separator through the third condenser, and the third phase separator is connected in the recovery jar, preheating structure includes first preheating tank and second preheating tank, the connecting pipe on thick steaming tower top vertically passes first preheating tank, the second preheating tank outside is provided with the auxiliary jacket, the refrigerant exit tube of first condenser connect in the auxiliary jacket, waste water collecting tank connects gradually in first preheating tank, second preheating tank.
The utility model relates to a further improvement of a device for recycling and treating waste water containing n-butyl acetate, which is characterized in that an electric heater is arranged outside a second preheating tank.
The utility model relates to a further improvement of a device for recycling and treating waste water containing n-butyl acetate, which is characterized in that a third preheating tank and a fourth preheating tank which have the same structure as a second preheating tank are arranged between a first phase separator and a first rectifying tower and between a second phase separator and a second rectifying tower.
The utility model relates to a further improvement of a device for recycling and treating waste water containing n-butyl acetate, which is characterized in that refrigerant outlet pipes of a first condenser, a second condenser and a third condenser are connected with auxiliary jackets of a second preheating tank, a third preheating tank and a fourth preheating tank.
The utility model relates to a further improvement of a device for recycling and treating wastewater containing n-butyl acetate, which is characterized in that the lower end of a second rectifying tower is also connected with a crude distillation tower.
Compared with the prior art, the utility model has the beneficial effects that:
the gas with heat at the top of the crude distillation tower and the rectifying tower is used for exchanging heat with the wastewater, so that the preheating time and energy consumption of the wastewater are reduced, and the self-condensing time is shortened; meanwhile, the refrigerant subjected to heat exchange by the condenser enters the auxiliary jacket, so that heat can be transferred to the wastewater, the heating time of the wastewater is reduced, and the energy consumption is reduced while the recovery treatment of the n-butyl acetate in the wastewater is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure: 1 wastewater collection tank, 2 crude distillation tower, 3 connecting pipe, 4 first condenser, 5 first phase separator, 6 first once rectifying tower, 7 second condenser, 8 second phase separator, 9 second rectifying tower, 10 third condenser, 11 third phase separator, 12 recovery tank, 13 first preheating tank, 14 second preheating tank, 15 third preheating tank, 16 fourth preheating tank.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the n-butyl acetate-containing wastewater recycling device comprises a wastewater collecting tank 1, wherein the wastewater collecting tank is used for collecting n-butyl acetate-containing wastewater, the wastewater collecting tank is connected to a crude distillation column 2 through a preheating structure, a connecting pipe 3 is arranged at the top end of the crude distillation column, the connecting pipe is connected to a first condenser 4 and then connected to a first phase separator 5, the lower end of the first phase separator is connected to a first rectifying column 6, and the first phase separator is connected to the crude distillation column through a pipeline to realize reflux of part of n-butyl acetate. The first rectifying column top is connected in second phase separator 8 through second condenser 7, and second phase separator lower extreme is connected in second rectifying column 9, and second rectifying column upper end is connected in third phase separator 11 through third condenser 10, and the third phase separator is connected in recovery tank 12, and preheating structure includes first preheating tank 13 and second preheating tank 14, and the connecting pipe on thick steaming column top vertically passes first preheating tank, and a plurality of connecting pipes that pass first preheating tank can be laid to improve heat exchange efficiency. An auxiliary jacket is arranged on the outer side of the second preheating tank, a refrigerant outlet pipe of the first condenser is connected to the auxiliary jacket, and the wastewater collecting tank is sequentially connected to the first preheating tank and the second preheating tank. An electric heater is also arranged outside the second preheating tank. The heat-exchanged water can be heated, so that heat is transferred, and the wastewater in the tank reaches the preheating temperature.
Further, a third preheating tank 15 and a fourth preheating tank 16 with the same structure as the second preheating tank are arranged between the first phase separator and the first rectifying tower and between the second phase separator and the second rectifying tower. The refrigerant outlet pipes of the first condenser, the second condenser and the third condenser are all connected with auxiliary jackets of the second preheating tank, the third preheating tank and the fourth preheating tank. Preheating the oil phase after phase separation, and feeding the oil phase into a rectifying tower to improve the purity of n-butyl acetate recovery.
The lower end of the second rectifying tower is also connected with the coarse distillation tower.
The auxiliary jacket can be connected with the reservoir through the pipeline, and the reservoir can also be connected with a refrigerant inlet pipe of the condenser, so that the circulation of water is realized, and resources are saved.
The working principle of the utility model is as follows: the waste water containing n-butyl acetate is placed in a waste water collecting tank, the waste water enters a crude distillation tower through a first preheating tank and a second preheating tank, an azeotrope of n-butyl acetate and water is condensed to a first phase separator, a water phase is removed, part of an oil phase flows back, the rest of the oil phase enters a first rectifying tower, the waste water is condensed to a second phase separator after being rectified, the water phase is removed, the waste water enters a third rectifying tower, and the oil phase is recovered after being rectified, so that n-butyl acetate is obtained, and the preheating and the condensation are interacted in the process, so that the energy utilization is improved, and the energy consumption is reduced.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides a contain n-butyl acetate waste water recovery processing device which characterized in that: including the waste water collecting tank, the waste water collecting tank is used for collecting the waste water that contains n-butyl acetate, the waste water collecting tank is connected in the thick steaming tower through preheating structure, and thick steaming tower top is provided with the connecting pipe, and the connecting pipe is connected in first condenser reconnection in first phase separator, and first phase separator lower extreme is connected in first rectifying tower, and first rectifying tower top is connected in second phase separator through the second condenser, and second phase separator lower extreme is connected in second rectifying tower, and second rectifying tower upper end is connected in third phase separator through the third condenser, and the third phase separator is connected in recovery tank, preheating structure includes first preheating tank and second preheating tank, the connecting pipe on thick steaming tower top vertically passes first preheating tank, the second preheating tank outside is provided with auxiliary jacket, the refrigerant exit tube of first condenser connect in auxiliary jacket, the waste water collecting tank is connected in proper order in first preheating tank, second preheating tank.
2. The n-butyl acetate-containing wastewater recovery treatment device according to claim 1, wherein: an electric heater is further arranged on the outer side of the second preheating tank.
3. The n-butyl acetate-containing wastewater recovery treatment device according to claim 2, wherein: and a third preheating tank and a fourth preheating tank which have the same structure as the second preheating tank are also arranged between the first phase separator and the first rectifying tower and between the second phase separator and the second rectifying tower.
4. The n-butyl acetate-containing wastewater recovery treatment device according to claim 3, wherein: and the refrigerant outlet pipes of the first condenser, the second condenser and the third condenser are connected with auxiliary jackets of the second preheating tank, the third preheating tank and the fourth preheating tank.
5. The n-butyl acetate-containing wastewater recovery treatment device according to claim 1, wherein: the lower end of the second rectifying tower is also connected with the coarse distillation tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322246374.9U CN220597096U (en) | 2023-08-21 | 2023-08-21 | Recovery treatment device for waste water containing n-butyl acetate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322246374.9U CN220597096U (en) | 2023-08-21 | 2023-08-21 | Recovery treatment device for waste water containing n-butyl acetate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220597096U true CN220597096U (en) | 2024-03-15 |
Family
ID=90168514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322246374.9U Active CN220597096U (en) | 2023-08-21 | 2023-08-21 | Recovery treatment device for waste water containing n-butyl acetate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220597096U (en) |
-
2023
- 2023-08-21 CN CN202322246374.9U patent/CN220597096U/en active Active
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