CN202519186U - Batch polymerization device - Google Patents
Batch polymerization device Download PDFInfo
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- CN202519186U CN202519186U CN2012201691747U CN201220169174U CN202519186U CN 202519186 U CN202519186 U CN 202519186U CN 2012201691747 U CN2012201691747 U CN 2012201691747U CN 201220169174 U CN201220169174 U CN 201220169174U CN 202519186 U CN202519186 U CN 202519186U
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- kettle
- feeding
- feed
- pipe
- polymerization device
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Abstract
The utility model relates to chemical production equipment, in particular to a batch polymerization device. In order to solve the problem of high material mixing difficulty in a process for semi-continuously producing polyester by using pure terephthalic acid (PTA), the utility model provides a batch polymerization device capable of improving material mixing degree. A feeding kettle is arranged between a feeding pump and a stirring kettle; a feeding hole is formed in the center of the top of a kettle body of the feeding kettle; a discharging hole is formed at the bottom of the kettle body of the feeding kettle; a feeding pipe which is connected with the feeding hole and can rotate is vertically arranged in the kettle body of the feeding kettle; and a plurality of material distribution holes are distributed in the feeding pipe. The feeding kettle is additionally arranged between the feeding pump and the stirring kettle, and a flame retardant and PTA are dispersed into ethylene glycol through high speed rotation of the feeding pipe in the feeding kettle, so that materials which enter the stirring kettle are dispersed flame retardant and PTA, the stirring burden of the stirring kettle is greatly reduced, and the materials are uniformly mixed easily.
Description
Technical field
The utility model relates to a kind of chemical production equipment, relates in particular to a kind of batchwise polymerization device that is used for the semicontinuous polyester production process of PTA method that raw material is difficult to mix.
Background technology
In the semicontinuous polyester production process of PTA method, need use numerous production units such as stirring tank, reaction kettle, condensing surface; Usually we are referred to as the batchwise polymerization device with used equipment, so the batchwise polymerization device is not a concrete production unit.Though related various device great majority all belong to prior art in concrete production process, the annexation between amount of equipment, the equipment all can produce very big influence to product.The semicontinuous polyester production process of PTA method mainly comprises making beating, esterification, polymerization, Cast Strip pelletizing five big steps at present; Wherein making beating is crucial link, and the degree of mixing of material can directly influence esterification thereafter in the stirring tank.The degree of mixing of material is high in the stirring tank can improve esterification reaction rate, improves the esterification yield of material in the set time; Therefore, the degree of mixing that how to improve material is to need the major issue that solves in the semicontinuous polyester production process of PTA method.
Summary of the invention
In order to solve the big problem of mixing of materials difficulty in the semicontinuous polyester production process of PTA method, the utility model provides a kind of batchwise polymerization device that improves the mixing of materials degree.
The technical scheme of the utility model:
A kind of batchwise polymerization device comprises fresh feed pump and stirring tank, and its improvements are, are provided with a feed chamber between fresh feed pump and the stirring tank; Said feed chamber, its kettle center of top is established opening for feed, discharge port is established in the bottom, vertically is provided with a feed-pipe that is connected and can rotates with opening for feed in its kettle; Be furnished with several cloth holes on the feed-pipe.
The batchwise polymerization device that the utility model provides, the preferred length of said feed-pipe are the kettle height of 0.7-0.9 feed chamber doubly.
The batchwise polymerization device that the utility model provides, the preferred distribution scope in cloth hole are in feed-pipe low side to 0.7 times feed-pipe length range.
Whisking appliance in the batchwise polymerization device that the utility model provides, said stirring tank preferably adopts helix agitator.
The beneficial effect of the utility model:
Set up a feed chamber between fresh feed pump and the stirring tank; High speed rotating through feed-pipe in the feed chamber throws away, is dispersed in the terepthaloyl moietie fire retardant and terephthalic acid from the cloth hole; Therefore the material that gets into stirring tank has been a fire retardant and terephthalic acid dispersive state comparatively in terepthaloyl moietie; Therefore alleviated the stirring burden of stirring tank greatly, thereby the material in the stirring tank is mixed easily.Stirring tank adopts helix agitator can make viscosity higher terephthalic acid in back reach the microcosmic admixture easily.
Description of drawings
Fig. 1 be in the batchwise polymerization device making beating, the related equipment of esterification technique structural representation;
Fig. 2 is the structural representation of feed chamber;
Among the figure, 1. feed chamber, 2. stirring tank, 3. reaction kettle, 4. fresh feed pump, 5. kettle, 6. feed-pipe, 7. cloth hole.
Embodiment
Specify below in conjunction with Fig. 1,2 pairs of the utility model.
The utility model provides a kind of batchwise polymerization device that is used for the semicontinuous polyester production process of PTA method that raw material is difficult to mix; It mainly improves is before stirring tank 2, to increase a feed chamber 1 that plays the pre-mixing effect, and adopts helix agitator in the stirring tank 2.Feed chamber 1 comprises kettle 5, is located at the vertical feed-pipe 6 in the kettle 5; Kettle 5 center of top positions are provided with opening for feed, discharge port is established in kettle 5 bottoms.Feed-pipe 6 can rotate in horizontal plane, and the length of feed-pipe 6 is the height of 0.8 times feed chamber 1 kettle 5, and feed-pipe 6 is provided with a plurality of equally distributed clothes hole 7; Cloth hole 7 is distributed in feed-pipe low side to 0.7 times feed-pipe 6 length ranges.
Fire retardant and terephthalic acid are through the feed-pipe 6 of fresh feed pump 4 entering feed chambers 1, and feed-pipe 6 is done high speed rotary motion in horizontal plane under the drive of motor; Fire retardant and terephthalic acid are done centrifugal motion in feed-pipe 6, and then are distributed in the terepthaloyl moietie through the cloth hole 7 on the feed-pipe 6.Therefore the material that comes out from feed chamber 1 is through preliminary blended, and material got in the stirring tank 2 again and stirred this moment, then greatly reduced and stirred difficulty, helps mixing of material.The material that mixes gets into reaction kettle 3 internal reactions, has improved the reaction efficiency of esterification.
Claims (4)
1. a batchwise polymerization device comprises fresh feed pump (4) and stirring tank (2), it is characterized in that, is provided with a feed chamber (1) between fresh feed pump (4) and the stirring tank (2); Said feed chamber (1), its kettle (5) center of top is established opening for feed, discharge port is established in the bottom, vertically is provided with the feed-pipe (6) that is connected and can rotates with opening for feed in its kettle (5); Be furnished with several cloth holes (7) on the feed-pipe (6).
2. batchwise polymerization device according to claim 1 is characterized in that, the length of described feed-pipe (6) be 0.7-0.9 feed chamber (1) doubly kettle (5) highly.
3. batchwise polymerization device according to claim 1 and 2 is characterized in that, feed-pipe (6) is provided with cloth hole (7) in its low side to 0.7 times feed-pipe (6) length range.
4. batchwise polymerization device according to claim 1 and 2 is characterized in that, the whisking appliance in the described stirring tank (2) adopts helix agitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201691747U CN202519186U (en) | 2012-04-20 | 2012-04-20 | Batch polymerization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201691747U CN202519186U (en) | 2012-04-20 | 2012-04-20 | Batch polymerization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202519186U true CN202519186U (en) | 2012-11-07 |
Family
ID=47102146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201691747U Expired - Fee Related CN202519186U (en) | 2012-04-20 | 2012-04-20 | Batch polymerization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202519186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111149480A (en) * | 2020-01-07 | 2020-05-15 | 浙江省工程勘察设计院集团有限公司 | Seed uniform spray-seeding equipment |
-
2012
- 2012-04-20 CN CN2012201691747U patent/CN202519186U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111149480A (en) * | 2020-01-07 | 2020-05-15 | 浙江省工程勘察设计院集团有限公司 | Seed uniform spray-seeding equipment |
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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: 20121107 Termination date: 20150420 |
|
| EXPY | Termination of patent right or utility model |