CN203244799U - Toluene reclaiming and rectifying device - Google Patents
Toluene reclaiming and rectifying device Download PDFInfo
- Publication number
- CN203244799U CN203244799U CN 201320236456 CN201320236456U CN203244799U CN 203244799 U CN203244799 U CN 203244799U CN 201320236456 CN201320236456 CN 201320236456 CN 201320236456 U CN201320236456 U CN 201320236456U CN 203244799 U CN203244799 U CN 203244799U
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- storage tank
- toluene
- outlet
- rectifying
- heater
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Abstract
The utility model discloses a toluene reclaiming and rectifying device. The toluene reclaiming and rectifying device comprises a heater, wherein a rectifying tower is arranged at the top of the heater; the distillate outlet of the rectifying tower is connected with a storage tank through a first condenser; the gas phase outlet of the storage tank is connected with an exhaust processing system through a second condenser; the outlet of the storage tank is connected with a return pipe of the rectifying tower through a liquid level meter; the liquid phase outlet of the storage tank is connected with the inlet of a receiving tank. As the storage tank is arranged between the rectifying tower and the receiving tank, stable pressure of the whole rectifying device is guaranteed and the rectifying efficiency is improved; on the other hand, the two condensers are arranged between the rectifying tower and the storage tank to condense rectified toluene repeatedly so as to effectively remove volatile impurities in toluene and improve the toluene purity.
Description
Technical field
The utility model relates to a kind of rectifier unit, relates in particular to a kind of toluene recovery rectifier unit.
Background technology
In most of chemical and medicine industry product and the intermediate production process, reaction dissolvent often needs to use toluene, and these solvents need recycling use, owing to containing impurity or other compositions in the solvent, rectifying is effectively and the simply method that reclaims toluene.Yet existing toluene rectifier unit comprises rectifying still, rectifying column and groove, and some volatile substances enter in the groove with toluene in the distillation process, therefore can bring into play and will produce stronger pressure in groove, affects the pressure of whole device; On the other hand, volatile substances enters in the groove, affects the purity of toluene.
The utility model content
The utility model is for the deficiencies in the prior art, and purpose is to provide the toluene recovery rectifier unit that a kind of pressure is stable, the rate of recovery is high.
For achieving the above object, the technical solution adopted in the utility model is as follows: a kind of toluene recovery rectifier unit, comprise heater, the heater top is provided with rectifying column, described rectifying column cut outlet links to each other with storage tank by the first condenser, the gaseous phase outlet of storage tank links to each other with exhaust treatment system by the second condenser, and the outlet of described storage tank links to each other with the return duct of rectifying column by liquid level gauge, and the liquid-phase outlet of described storage tank links to each other with the entrance of groove.
Described heater base outlet connects cesspool.
Compared with prior art, the beneficial effects of the utility model are mainly reflected in: be provided with storage tank between rectifying column and groove, guarantee the pressure that whole rectifier unit is stable, improve rectification efficiency; On the other hand, between rectifying column and storage tank, be provided with 2 condensers, can carry out multiple condensation to the toluene after the rectifying, thereby effectively remove the volatile impurity that contains in the toluene, improve the purity of toluene.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: rectifying column 1, groove 2, storage tank 3, the first condenser 41, the second condenser 42, exhaust treatment system 5, heater 6, cesspool 7, liquid level gauge 8.
The specific embodiment
Below in conjunction with specific embodiment structure of the present utility model is described further.
As shown in Figure 1, a kind of toluene recovery rectifier unit, comprise heater 6, heater 6 tops are provided with rectifying column 1, described rectifying column 1 cut outlet links to each other with storage tank 3 by the first condenser 41, the gaseous phase outlet of storage tank 3 links to each other with exhaust treatment system 5 by the second condenser 42, and the outlet of described storage tank 3 links to each other with the return duct of rectifying column 1 by liquid level gauge 8, and the liquid-phase outlet of described storage tank 3 links to each other with the entrance of groove 2.Described heater 6 outlet at bottoms connect cesspool 7.
During work, solvent to be recycled enters the heater 6 from the liquid phase entrance of heater 6, after under vapor action, solvent being heated, solid and liquid impurities is from being discharged into cesspool 7, steam enters rectifying column 1 interior rectifying, product is entered in the first condenser 41 by the cut outlet on rectifying column 1 top, condensed liquid enters in the storage tank 3, some volatile gases are after 42 condensations of the second condenser, and gas enters waste treatment system 5, and liquid enters in the storage tank 3, the outlet of storage tank 3 links to each other with the return duct of rectifying column 1 by liquid level gauge 8, stable with the pressure that guarantees whole device, the liquid in the storage tank 3 enters in the groove 2, finishes the recovery distillation process of toluene.
Claims (2)
1. toluene recovery rectifier unit, comprise heater (6), heater (6) top is provided with rectifying column (1), it is characterized in that: the outlet of described rectifying column (1) cut links to each other with storage tank (3) by the first condenser (41), the gaseous phase outlet of described storage tank (3) links to each other with exhaust treatment system (5) by the second condenser (42), the outlet of described storage tank (3) links to each other with the return duct of rectifying column (1) by liquid level gauge (8), and the liquid-phase outlet of described storage tank (3) links to each other with the entrance of groove (2).
2. a kind of toluene recovery rectifier unit as claimed in claim 1 is characterized in that: described heater (6) outlet at bottom connection cesspool (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320236456 CN203244799U (en) | 2013-05-03 | 2013-05-03 | Toluene reclaiming and rectifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320236456 CN203244799U (en) | 2013-05-03 | 2013-05-03 | Toluene reclaiming and rectifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203244799U true CN203244799U (en) | 2013-10-23 |
Family
ID=49371266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320236456 Expired - Fee Related CN203244799U (en) | 2013-05-03 | 2013-05-03 | Toluene reclaiming and rectifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203244799U (en) |
-
2013
- 2013-05-03 CN CN 201320236456 patent/CN203244799U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20140503 |