CN202893326U - External heating self-circulation esterification reaction device - Google Patents
External heating self-circulation esterification reaction device Download PDFInfo
- Publication number
- CN202893326U CN202893326U CN 201220492363 CN201220492363U CN202893326U CN 202893326 U CN202893326 U CN 202893326U CN 201220492363 CN201220492363 CN 201220492363 CN 201220492363 U CN201220492363 U CN 201220492363U CN 202893326 U CN202893326 U CN 202893326U
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- Prior art keywords
- esterification
- loopa
- esterification reaction
- external heat
- heater
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- Physical Or Chemical Processes And Apparatus (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The utility model relates to an esterification reaction device, in particular to an external heating self-circulation esterification reaction device and belongs to the field of polyester production devices. The external heating self-circulation esterification reaction device comprises an esterification reaction kettle which takes terephthalic acid and ethylene glycol as raw materials and an esterification reaction heater; the top of the esterification reaction heater is provided with a raw material outlet, and the bottom of the esterification reaction heater is provided with a raw material inlet; the top of the esterification reaction kettle is provided with a recovered material outlet, the bottom of the esterification reaction kettle is provided with a material outlet, and the middle of the esterification reaction kettle is provided with a material inlet; the raw material outlet is connected with the material inlet; and the material outlet and the raw material inlet are connected at a connecting angle place by a pipeline. The utility model provides the esterification reaction device with the simple device, low cost and self-circulation of the material.
Description
Technical field
The utility model relates to a kind of esterification device, and particularly a kind of external heat self-loopa esterification device belongs to the polyester production device field.
Background technology
Esterification device belongs to chemical production field, esterification need to be carried out under certain temperature conditions, industrial is by reaction kettle of the esterification is directly heated, be that 201768563U(was 2011-03-23 in open day such as publication number) Chinese patent heat by the sidewall sandwich establishment at tank body, this mode is because the tank body volume is larger, usually solve with stirring, therefore both power consumption and heating-up temperature are also inhomogeneous.
The utility model content
Problem to be solved in the utility model is: provide a kind of device simple, cost is low, the esterification device of material self-loopa.
The technical scheme in the invention for solving the above technical problem is: a kind of external heat self-loopa esterification device, comprise one take terephthalic acid (TPA) and ethylene glycol as raw material reaction kettle of the esterification and an esterification heater, described esterification heater top is provided with material outlet, and the bottom is provided with material inlet; Described reaction kettle of the esterification top is provided with the recovered material outlet, and the bottom is provided with material outlet, and the middle part is provided with material inlet; Described material outlet is connected with described material inlet; Described material outlet is connected at the joint angle place by pipeline with material inlet.
The esterification raw material heats by pumping into the esterification heater among the present invention, by making the esterification raw material that pumps into and the raw material that flows out the esterification heater that a temperature difference is arranged after the heating, and this temperature difference can further form density contrast, drive material and enter into reaction kettle of the esterification from the esterification heater, in reaction kettle of the esterification, be provided with guider, can under the guider effect, flow out after making the raw material that heats by the esterification heater enter in the reaction kettle of the esterification, enter into again reaction kettle of the esterification, between esterification heater and reaction kettle of the esterification, form thus the material automatic cycle and react.In addition, the whole device of the present invention is simple to operation, and the gas phase heating agent is better and need not conveying equipment than the heat-transfer effect of liquid phase heating agent, and cost is low.
As preferably, described joint angle also connects a precondensation material inlet tube.
As preferably, described material inlet is provided with a slurry syringe.
As preferably, described raw material slurry syringe is 1, two or 3.Can simultaneously or alternately realize feed injection.
As preferably, the water back of described esterification heater is the row formula water back made from stainless steel.
As preferably, described esterification heater adopts the gas phase heating medium for heating.The gas phase heating agent is better and to need not the conveying equipment cost low than the heat-transfer effect of liquid phase heating agent.
As preferably, described material inlet and material outlet are opened in sustained height.Material can be entered in the reactor smoothly, reduce circulation resistance.
As preferably, it also comprises a knockout tower; Described knockout tower bottom is provided with the recovered material import; Described recovered material import is connected with described recovered material outlet.
As preferably, described reaction kettle of the esterification is to be made by stainless steel.Can effectively prevent the reaction kettle of the esterification corrosion.
As preferably, described esterification heater is to be made by stainless steel.Can effectively prevent the corrosion of esterification heater.
The beneficial effects of the utility model are:
The esterification raw material heats by pumping into the esterification heater among the present invention, by making the esterification raw material that pumps into and the raw material that flows out the esterification heater that a temperature difference is arranged after the heating, and this temperature difference can further form density contrast, drive material automatic cycle between esterification heater and reaction kettle of the esterification, in addition, the present invention is owing to can realize the self-loopa reaction, can be set to 1 by raw material slurry syringe, two or 3, can simultaneously or alternately realize feed injection, satisfy the demand of the large and continuous occasion of Production requirement amount, and material inlet and material outlet are opened in sustained height, material can be entered in the reactor smoothly, reduce circulation resistance, further help advancing of self-loopa reaction.At last, the whole device of the present invention is simple to operation, and the gas phase heating agent is better and need not conveying equipment than the heat-transfer effect of liquid phase heating agent, and cost is low.
Description of drawings
Fig. 1 is the structural representation of a kind of external heat self-loopa of the utility model esterification device.
Among the figure, 1-reaction kettle of the esterification, 2-esterification heater, 3-material outlet, 4-material inlet, the outlet of 5-recovered material, 6-material outlet, 7-material inlet, 8-slurry syringe, 9-knockout tower, the import of 10-recovered material, 11-joint angle, 12-precondensation material inlet tube.
The specific embodiment
The purpose of this utility model, feature and advantage are further described with reference to accompanying drawing in connection with embodiment.
This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subject to the protection of Patent Law in claim scope of the present utility model.
As shown in Figure 1, a kind of external heat self-loopa esterification device, the raw material that need to carry out esterification enters into esterification heater 2 by the material inlet 4 that is opened in esterification heater 2 bottoms, carry out esterification through flowing out and enter into reaction kettle of the esterification 1 by the material inlet 7 that reaction kettle of the esterification 1 middle part is offered from the material outlet 3 that is opened in esterification heater 2 tops after 2 heating of esterification heater, material inlet 7 is opened in sustained height with material outlet 3, and described esterification heater 2 adopts the gas phase heating medium for heating; Reaction kettle of the esterification 1 and esterification heater 2 are to be made by stainless steel; The top of reaction kettle of the esterification 1 also is connected with knockout tower 9, and the recovered material outlet 5 that the intermediate product that reaction produces in the reaction kettle of the esterification 1 is offered by the reaction kettle of the esterification top enters into knockout tower 9 by recovered material import 10 middle product is reclaimed separation; The product of reaction is flowed out by the material outlet 6 that is opened in reaction kettle of the esterification 1 bottom from reaction kettle of the esterification 1, the material that flows out is divided into Liang Tiaolu in joint angle 11, article one, enter into prepolymerization reaction by precondensation material inlet tube 12, another is again pumped into by pump and repeats above-mentioned steps in the material inlet 4 again; Be provided with a slurry syringe 8 at material inlet 4, the raw material of esterification injects esterification heater 2 by slurry syringe 8; As required, raw material slurry syringe 8 is 1, two or 3; The water back of esterification heater 2 can be the row formula water back made from stainless steel as required.
Claims (10)
1. external heat self-loopa esterification device, comprise reaction kettle of the esterification (1) and an esterification heater (2) take terephthalic acid (TPA) and ethylene glycol as raw material, it is characterized in that: described esterification heater (2) top is provided with material outlet (3), and the bottom is provided with material inlet (4); Described reaction kettle of the esterification (1) top is provided with recovered material outlet (5), and the bottom is provided with material outlet (6), and the middle part is provided with material inlet (7); Described material outlet (3) is connected with described material inlet (7); Described material outlet (6) is located to be connected in joint angle (11) by pipeline with material inlet (4).
2. a kind of external heat self-loopa esterification device as claimed in claim 1, it is characterized in that: described joint angle (11) also connects a precondensation material inlet tube (12).
3. a kind of external heat self-loopa esterification device as claimed in claim 2, it is characterized in that: described material inlet (4) is provided with a slurry syringe (8).
4. a kind of external heat self-loopa esterification device as claimed in claim 3, it is characterized in that: described raw material slurry syringe (8) is 1, two or 3.
5. a kind of external heat self-loopa esterification device claimed in claim 4, it is characterized in that: the water back of described esterification heater (2) is the row formula water back made from stainless steel.
6. a kind of external heat self-loopa esterification device as claimed in claim 5 is characterized in that: described esterification heater (2) employing gas phase heating medium for heating.
7. a kind of external heat self-loopa esterification device as claimed in claim 6 is characterized in that: described material inlet (7) is opened in sustained height with material outlet (3).
8. a kind of external heat self-loopa esterification device as claimed in claim 7, it is characterized in that: it also comprises a knockout tower (9); Described knockout tower (9) bottom is provided with recovered material import (10); Described recovered material import (10) exports (5) with described recovered material and is connected.
9. a kind of external heat self-loopa esterification device as claimed in claim 8, it is characterized in that: described reaction kettle of the esterification (1) is to be made by stainless steel.
10. a kind of external heat self-loopa esterification device as claimed in claim 8, it is characterized in that: described esterification heater (2) is to be made by stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492363 CN202893326U (en) | 2012-09-25 | 2012-09-25 | External heating self-circulation esterification reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492363 CN202893326U (en) | 2012-09-25 | 2012-09-25 | External heating self-circulation esterification reaction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202893326U true CN202893326U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220492363 Expired - Fee Related CN202893326U (en) | 2012-09-25 | 2012-09-25 | External heating self-circulation esterification reaction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202893326U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903409A (en) * | 2016-06-16 | 2016-08-31 | 重庆天原化工有限公司 | Novel thiohydracrylic acid pressure hydrolysis reaction device |
| CN113413858A (en) * | 2021-08-23 | 2021-09-21 | 山东蓝湾新材料有限公司 | High molecular polymer intermediate production device and process flow |
-
2012
- 2012-09-25 CN CN 201220492363 patent/CN202893326U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903409A (en) * | 2016-06-16 | 2016-08-31 | 重庆天原化工有限公司 | Novel thiohydracrylic acid pressure hydrolysis reaction device |
| CN113413858A (en) * | 2021-08-23 | 2021-09-21 | 山东蓝湾新材料有限公司 | High molecular polymer intermediate production device and process flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20150925 |
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| EXPY | Termination of patent right or utility model |