CN212141534U - Acetone recovery device - Google Patents
Acetone recovery device Download PDFInfo
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- CN212141534U CN212141534U CN202020473893.2U CN202020473893U CN212141534U CN 212141534 U CN212141534 U CN 212141534U CN 202020473893 U CN202020473893 U CN 202020473893U CN 212141534 U CN212141534 U CN 212141534U
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Abstract
The utility model discloses an acetone recovery unit belongs to chemical industry and retrieves technical field. The device comprises a gas-liquid separator, a condenser, a recovery tank, a collection tank set, a temporary storage tank and a distillation still, wherein a gas outlet of the gas-liquid separator is connected to a gas-liquid inlet of the recovery tank through the condenser, a liquid outlet of the gas-liquid separator is connected with an inlet of the temporary storage tank, and an outlet of the temporary storage tank is connected with a liquid inlet of the recovery tank; the collection pipe group comprises at least two collection tanks; the gas outlet of the recovery tank is communicated with the gas inlet of the collection tank, and the liquid outlets of the recovery tank and the collection tank are communicated with the distillation still. The utility model discloses not only reduce the pollution of peripheral environment, improved the security of working on fire in all ring edge borders, improved acetone's comprehensive utilization ratio moreover, reduced material cost and safe cost, improved economic benefits.
Description
Technical Field
The utility model belongs to the technical field of the chemical industry is retrieved, in particular to acetone recovery unit.
Background
The use of acetone is indispensable in the daily production of vitamin B12. In the solvent extraction link in the production process, a part of acetone gas can be discharged, the exhaust gas is condensed by a condenser, the generated tail gas can be directly discharged into the atmosphere, and a large amount of acetone still exists in the tail gas through inspection.
The tail gas with a large amount of acetone not only pollutes the environment and causes huge potential safety hazard to surrounding fire operation, but also wastes a large amount of acetone. The utilization rate of acetone for producing vitamin B12 is low, and the raw material cost and the safety cost of a company are increased.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an in order to solve the problem that contains a large amount of acetone and cause the waste in the above-mentioned tail gas, provide an acetone recovery unit. Through the utility model discloses the acetone that realizes is retrieved, has improved the utilization ratio of acetone, has reduced material cost and safe cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an acetone recovery device comprises a gas-liquid separator, a condenser, a recovery tank, a collection tank group, a temporary storage tank and a distillation still, wherein the upper part of the recovery tank is provided with a gas-liquid inlet, a liquid inlet and a gas outlet, and the lower part of the recovery tank is provided with a liquid outlet; the collecting tank group at least comprises two collecting tanks, the lower parts of the collecting tanks are provided with gas inlets and liquid outlets, the upper parts of the collecting tanks are provided with gas outlets, and the collecting tanks are connected in series through gas pipelines to form a cascade structure; a gas outlet of the gas-liquid separator is connected to a gas-liquid inlet of the recovery tank through a condenser, a liquid outlet of the gas-liquid separator is connected with an inlet of the temporary storage tank, and an outlet of the temporary storage tank is connected with a liquid inlet of the recovery tank; the gas outlet of the recovery tank is communicated with the gas inlet of the collecting tank, the gas outlet of the collecting tank is connected with the gas inlet of the other collecting tank, and the liquid outlets of the recovery tank and the collecting tank are communicated with the distillation still.
Furthermore, the pipeline between the recovery tank and the collection tank and the pipeline between the collection pipe and the collection tank are provided with valves.
Furthermore, a water pump and a valve are arranged on a connecting pipeline between the temporary storage tank and the recovery tank.
Further, the collecting tank is provided with an overflow port; the overflow port is positioned on the side wall which is one fourth of the height of the tank body from the top; and a valve is arranged on a pipeline between the collecting tank and the distillation kettle.
The utility model adopts the beneficial effect that above-mentioned technical scheme produced lies in:
1. the utility model discloses a multistage recovery acetone has improved acetone's comprehensive utilization.
2. The utility model discloses a with acetone's in the tail gas recovery not only reduced the pollution of peripheral environment to the security of all ring edge borders operation of starting a fire has been improved.
3. The utility model discloses a set up and reduced raw materials cost and safe cost, improved economic benefits.
Drawings
Fig. 1 is a schematic diagram of the present invention.
In the figure: 1 is a gas-liquid separator, 2 is a condenser, 3 is a recovery tank, 4 is a collection tank, 5 is a temporary storage tank, 6 is a collection tank, and 7 is a distillation still.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the apparatus includes a gas-liquid separator, a condenser, a recovery tank and a collection tank, the recovery tank has a gas-liquid inlet, a liquid inlet and a gas outlet at an upper portion thereof, and a liquid outlet at a lower portion thereof; the lower part of the collecting tank is provided with a gas inlet and a liquid outlet, and the upper part of the collecting tank is provided with a gas outlet; a gas outlet of the gas-liquid separator is connected to a gas-liquid inlet of the recovery tank through a condenser, and a liquid outlet of the gas-liquid separator is connected to a liquid inlet of the recovery tank through a temporary storage tank; the liquid outlet of the recovery tank is communicated with the distillation kettle; the gas outlet of the recovery tank is communicated with the gas inlet of the collecting tank, and the gas outlet of the collecting tank is communicated with the gas inlet of the other collecting tank; the liquid outlets of the recovery tank and the collection tank are communicated with the distillation still.
The pipeline between recovery jar and the collecting vessel and the pipeline between collecting pipe and the collecting vessel all are equipped with the valve. The temporary storage tank is internally provided with a water pump, and a valve is arranged on a pipeline between the temporary storage tank and the recovery tank. The collecting tanks are provided with overflow ports; the overflow port is positioned on the side wall of the tank body of the collecting tank and is away from the top of the tank body by a quarter of the height of the tank body; a valve is arranged on the pipeline between the collecting tank and the distillation kettle.
When the device is actually operated, firstly deionized water is added into the collection tank to the overflow port of the tank body, and then the normal operation of the device is started.
After the device operates, tail gas is introduced, the liquid generated by the device passes through the gas-liquid separator and is temporarily stored in the gas-liquid separator through the temporary storage tank, and the generated gas enters the recovery tank after being condensed by the condenser. The gas in the recovery tank is introduced into the collection tank through a gas outlet at the upper part of the recovery tank. In the meantime, when the height of the liquid in the temporary storage tank reaches the overflow port, the valve is opened, the water pump starts to work, and the liquid is introduced into the recovery tank. And introducing the liquid in the recovery tank into distillation, and introducing the liquid in the collection tank into a distillation kettle. The acetone was extracted by distillation in a still.
In the tail gas recovery process, the liquid density in the collection tank can be regularly detected; when the density in the first collecting tank reaches 0.990-0.995 g/ml, opening a valve between the two collecting tanks to enable the second collecting tank to absorb tail gas; and opening a valve for the liquid in the absorbed primary collection tank, and allowing the liquid to enter a distillation kettle for distillation and recovery.
Switching of the collecting tank: after the acetone aqueous solution in the first collection tank enters the distillation kettle, the second collection tank is used, and the round absorption is started. When the density in the second collecting tank reaches 0.990-0.995 g/ml, introducing deionized water into the first collecting tank again, closing a valve between the two collecting pipes, and starting to recover tail gas of the first collecting tank. In this way, the two collection tanks are recycled.
Claims (4)
1. The acetone recovery device is characterized by comprising a gas-liquid separator, a condenser, a recovery tank, a collection tank group, a temporary storage tank and a distillation still, wherein the upper part of the recovery tank is provided with a gas-liquid inlet, a liquid inlet and a gas outlet, and the lower part of the recovery tank is provided with a liquid outlet; the collecting tank group at least comprises two collecting tanks, the lower parts of the collecting tanks are provided with gas inlets and liquid outlets, the upper parts of the collecting tanks are provided with gas outlets, and the collecting tanks are connected in series through gas pipelines to form a cascade structure; a gas outlet of the gas-liquid separator is connected to a gas-liquid inlet of the recovery tank through a condenser, a liquid outlet of the gas-liquid separator is connected with an inlet of the temporary storage tank, and an outlet of the temporary storage tank is connected with a liquid inlet of the recovery tank; the gas outlet of the recovery tank is communicated with the gas inlet of the collecting tank, the gas outlet of the collecting tank is connected with the gas inlet of the other collecting tank, and the liquid outlets of the recovery tank and the collecting tank are communicated with the distillation still.
2. The acetone recovery device of claim 1 wherein the pipeline between the recovery tank and the collection tank and the pipeline between the collection pipe and the collection tank are provided with valves.
3. The acetone recovery device of claim 1 wherein a water pump and a valve are provided on the connection pipeline between the temporary storage tank and the recovery tank.
4. The acetone recovery device of claim 1, wherein the collection tank is provided with an overflow port; the overflow port is positioned on the side wall of the collection tank, which is one fourth of the height of the tank body from the top; and a valve is arranged on a pipeline between the collecting tank and the distillation kettle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020473893.2U CN212141534U (en) | 2020-04-02 | 2020-04-02 | Acetone recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020473893.2U CN212141534U (en) | 2020-04-02 | 2020-04-02 | Acetone recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212141534U true CN212141534U (en) | 2020-12-15 |
Family
ID=73725100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020473893.2U Active CN212141534U (en) | 2020-04-02 | 2020-04-02 | Acetone recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212141534U (en) |
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2020
- 2020-04-02 CN CN202020473893.2U patent/CN212141534U/en active Active
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