CN219333180U - Brominated polystyrene apparatus for producing - Google Patents
Brominated polystyrene apparatus for producing Download PDFInfo
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- CN219333180U CN219333180U CN202320380399.5U CN202320380399U CN219333180U CN 219333180 U CN219333180 U CN 219333180U CN 202320380399 U CN202320380399 U CN 202320380399U CN 219333180 U CN219333180 U CN 219333180U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a brominated polystyrene production device, which relates to the technical field of brominated polystyrene production, wherein a feed inlet of a reaction kettle is respectively communicated with a middle tank and a bromine storage tank through a pipeline, a feed inlet of the middle tank is communicated with a dissolution kettle through a pipeline, the middle tank is provided with a first cooling jacket, and the reaction kettle, the middle tank and the dissolution kettle are all provided with stirrers; the bottom material outlet of the reaction kettle is communicated with a distillation kettle through a pipeline, the top gas phase outlet of the distillation kettle is communicated with a solvent recovery tank through a condenser, and the bottom material outlet of the distillation kettle is communicated with a finished product tank. The dissolved polystyrene is transferred to the intermediate tank from the dissolution kettle to be cooled in advance, so that the cooling time of the materials after entering the reaction kettle is greatly shortened, the whole process period is shortened, and meanwhile, the cooling effect of the materials is better, the forward reaction is facilitated, and the quality of products is improved.
Description
Technical Field
The utility model relates to the technical field of brominated polystyrene production, in particular to a brominated polystyrene production device.
Background
Brominated polystyrene is a brominated organic flame retardant, has good mechanical physical and chemical properties such as high flame retardance, thermal stability and light stability, and is widely applied to engineering plastics such as polybutylene terephthalate, polyethylene terephthalate, polyphenyl ether, nylon-66 and the like.
The brominated polystyrene is prepared by reacting bromine with polystyrene, the polystyrene needs to be heated and dissolved into a liquid state after being mixed with a solvent, the temperature of the material after dissolution is higher, but the process temperature is required to be lower when the bromine reacts with the polystyrene, so that the dissolved polystyrene needs to be put into a reaction kettle in advance for cooling, and then put into the bromine for reaction after reaching the process temperature required by the process, the process period is greatly prolonged, the production cost is increased, and meanwhile, the product quality is poor due to poor material cooling effect.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: aiming at the defects existing in the prior art, the brominated polystyrene production device is provided, the process period is shortened, the production cost is reduced, and the product quality is good.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the brominated polystyrene production device comprises a reaction kettle, wherein a feed inlet of the reaction kettle is respectively communicated with a middle tank and a bromine storage tank through a pipeline, a feed inlet of the middle tank is communicated with a dissolution kettle through a pipeline, the middle tank is provided with a first cooling jacket, and the reaction kettle, the middle tank and the dissolution kettle are all provided with stirrers;
the bottom material outlet of the reaction kettle is communicated with a distillation kettle through a pipeline, the top gas phase outlet of the distillation kettle is communicated with a solvent recovery tank through a condenser, and the bottom material outlet of the distillation kettle is communicated with a finished product tank.
As an improved technical scheme, a distributor is arranged on the inner side of the bottom of the dissolution kettle, and the distributor is communicated with a nitrogen inlet pipeline.
As an improved technical scheme, the top gas phase outlet of the reaction kettle is communicated with an absorption tower through a pipeline, and the top material outlet of the absorption tower is communicated with an absorption liquid temporary storage tank through a pipeline.
As an improved technical scheme, the absorption tower is provided with an absorption liquid circulating pump, an inlet of the absorption liquid circulating pump is communicated to a bottom material outlet of the absorption tower through a pipeline, and an outlet of the absorption liquid circulating pump is respectively communicated to a top material inlet of the absorption tower and the absorption liquid temporary storage tank through pipelines.
As an improved technical scheme, the reaction kettle is provided with a second cooling jacket, the second cooling jacket is provided with two chilled water inlets and two chilled water outlets, the two chilled water inlets are respectively communicated with a chilled water pipe water inlet pipeline, and the chilled water outlets are respectively communicated with a chilled water outlet pipeline.
As an improved technical scheme, the stirrer of the reaction kettle is an anchor stirrer.
As a preferable technical scheme, a guide cylinder is arranged at the upper part of the anchor stirrer.
As an optimal technical scheme, the bromine storage tank is communicated with a vacuum pump through a pipeline.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that:
the utility model relates to a brominated polystyrene production device, which comprises a reaction kettle, wherein a feed inlet of the reaction kettle is respectively communicated with a middle tank and a bromine storage tank through a pipeline, a feed inlet of the middle tank is communicated with a dissolution kettle through a pipeline, the middle tank is provided with a first cooling jacket, and the reaction kettle, the middle tank and the dissolution kettle are all provided with stirrers; the bottom material outlet of the reaction kettle is communicated with a distillation kettle through a pipeline, the top gas phase outlet of the distillation kettle is communicated with a solvent recovery tank through a condenser, and the bottom material outlet of the distillation kettle is communicated with a finished product tank. The dissolved polystyrene is transferred to the intermediate tank from the dissolution kettle to be cooled in advance, so that the cooling time of the materials after entering the reaction kettle is greatly shortened, the whole process period is shortened, and meanwhile, the cooling effect of the materials is better, the forward reaction is facilitated, and the quality of products is improved.
The inner side of the bottom of the dissolution kettle is provided with a distributor, and the distributor is communicated with a nitrogen inlet pipeline. Through setting up nitrogen bubbling in the bottom of dissolution kettle, increased polystyrene particle's mobility and each other interval, the dissolution effect of solvent is better, and the dissolution rate is fast, has shortened process cycle. Meanwhile, the nitrogen is used as a protective gas, so that hidden danger in the use process of the solvent is greatly reduced, and the safety production is facilitated.
The top gas phase outlet of the reaction kettle is communicated with an absorption tower through a pipeline, and the top material outlet of the absorption tower is communicated with an absorption liquid temporary storage tank through a pipeline. The hydrogen chloride gas generated in the reaction process can be absorbed by the absorption liquid in the absorption tower and transferred to the absorption liquid temporary storage tank, the liquid in the absorption liquid temporary storage tank can be used for producing hydrochloric acid, the pollution to the environment caused by the fact that the hydrogen chloride gas is discharged into the air is avoided, meanwhile, the obtained hydrochloric acid can be used by itself or is taken out from the market, and the economic benefit is increased.
The absorption tower is provided with an absorption liquid circulating pump, an inlet of the absorption liquid circulating pump is communicated to a bottom material outlet of the absorption tower through a pipeline, and an outlet of the absorption liquid circulating pump is communicated to a top material inlet of the absorption tower and the absorption liquid temporary storage tank through pipelines respectively. The absorption liquid circulating pump pumps the liquid at the bottom of the absorption tower to the top of the absorption tower and sprays the liquid through the redistributor, meets the hydrogen chloride gas from bottom to top, has better absorption effect, enhances the mixing of materials in the whole absorption tower, and has high stability and consistency of the composition and content of the materials in the absorption tower.
The reaction kettle is provided with a second cooling jacket, the second cooling jacket is provided with two chilled water inlets and two chilled water outlets, the two chilled water inlets are respectively communicated with a chilled water inlet pipeline, and the chilled water outlets are respectively communicated with a chilled water outlet pipeline. Through setting up two frozen water inlets and two frozen water outlets, increased the flow that frozen water business turn over second cooling jacket, the heat transfer effect with the material in the reation kettle is better, has reduced the cooling time of material, has shortened process cycle.
The stirrer of the reaction kettle is an anchor stirrer. The anchor stirrer increases the contact area with the materials in the reaction kettle, the heat exchange contact area between the materials and the kettle wall is large, the cooling time is shortened, and the cooling effect is better.
The upper part of the anchor stirrer is provided with a guide cylinder. The material gets into the draft tube through anchor agitator's stirring effect, through the mixing and the shearing of draft tube, has improved the stirring degree to liquid for the material mixes the effect better in reation kettle, and the reaction is more thorough.
The bromine storage tank is communicated with the vacuum pump through the pipeline, and the vacuum pump is used for keeping micro negative pressure in the bromine storage tank, so that the bromine storage tank is favorable for preserving bromine, and the safety is higher.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
wherein: 1. a reaction kettle; 2. an intermediate tank; 3. a bromine storage tank; 4. a dissolution kettle; 5. a first cooling jacket; 6. a stirrer; 7. a distillation still; 8. a condenser; 9. a solvent recovery tank; 10. a finished product tank; 11. a distributor; 12. a nitrogen inlet pipe; 13. an absorption tower; 14. an absorption liquid temporary storage tank; 15. an absorption liquid circulating pump; 16. a second cooling jacket; 17. a chilled water inlet; 18. a chilled water outlet; 19. a chilled water inlet line; 20. chilled water outlet pipeline; 21. a guide cylinder; 22. a vacuum pump; 23. a polystyrene storage tank; 24. and a solvent storage tank.
Detailed Description
The utility model is further illustrated in the following, in conjunction with the accompanying drawings and examples.
As shown in fig. 1, a brominated polystyrene production device comprises a reaction kettle 1, wherein a feed inlet of the reaction kettle 1 is respectively communicated with a middle tank 2 and a bromine storage tank 3 through a pipeline, a feed inlet of the middle tank 2 is respectively communicated with a dissolution kettle 4 through a pipeline, a feed inlet of the dissolution kettle 4 is respectively communicated with a polystyrene storage tank 23 and a solvent storage tank 24 through a pipeline, the middle tank 2 is provided with a first cooling jacket 5, and the reaction kettle 1, the middle tank 2 and the dissolution kettle 4 are all provided with a stirrer 6; the bottom material outlet of the reaction kettle 1 is communicated with a distillation kettle 7 through a pipeline, the top gas phase outlet of the distillation kettle 7 is communicated with a solvent recovery tank 9 through a condenser 8, and the bottom material outlet of the distillation kettle 7 is communicated with a finished product tank 10. The temperature in the dissolution kettle 4 is about 30 ℃, the temperature in the reaction kettle 1 needs to be controlled at about 0 ℃, and the dissolved polystyrene is transferred to the intermediate tank 2 from the dissolution kettle 4 to be cooled in advance, so that the cooling time of materials after entering the reaction kettle 1 is greatly shortened, the whole process period is shortened, the cooling effect of the materials is better, the forward reaction is facilitated, and the quality of products obtained by distilling and separating the materials in the reaction kettle 1 after the reaction is completed is higher.
The inside of the bottom of the dissolution kettle 4 is provided with a distributor 11, and the distributor 11 is communicated with a nitrogen inlet pipeline 12. By arranging nitrogen bubbling at the bottom of the dissolution kettle 4, the fluidity of polystyrene particles and the distance between the polystyrene particles are increased, the dissolution effect of the solvent is better, the dissolution speed is high, and the process period is shortened. Meanwhile, the nitrogen is used as a protective gas, so that hidden danger in the use process of the solvent is greatly reduced, and the safety production is facilitated.
The top gas phase outlet of the reaction kettle 1 is communicated with an absorption tower 13 through a pipeline, and the top material outlet of the absorption tower 13 is communicated with an absorption liquid temporary storage tank 14 through a pipeline. The hydrogen chloride gas generated in the reaction process can be absorbed by the absorption liquid in the absorption tower 13 and transferred to the absorption liquid temporary storage tank 14, the liquid in the absorption liquid temporary storage tank 14 can be used for producing hydrochloric acid, the pollution to the environment caused by the discharge of the hydrogen chloride gas into the air is avoided, and meanwhile, the obtained hydrochloric acid can be used by itself or taken out, so that the economic benefit is increased.
The absorption tower 13 is provided with an absorption liquid circulating pump 15, an inlet of the absorption liquid circulating pump 15 is communicated to a bottom material outlet of the absorption tower 13 through a pipeline, and an outlet of the absorption liquid circulating pump 15 is respectively communicated to a top material inlet of the absorption tower 13 and the absorption liquid temporary storage tank 14 through pipelines. The absorption liquid circulating pump 15 pumps the liquid at the bottom of the absorption tower 13 to the top of the absorption tower 13 and sprays the liquid through the redistributor 11, and meets the hydrogen chloride gas from bottom to top, so that the absorption effect is better, the mixing of materials in the whole absorption tower 13 is enhanced, and the composition, content stability and consistency of the materials in the absorption tower 13 are high.
The reaction kettle 1 is provided with a second cooling jacket 16, the second cooling jacket 16 is provided with two chilled water inlets 17 and two chilled water outlets 18, the two chilled water inlets 17 are respectively communicated with a chilled water inlet pipeline 19, and the chilled water outlets 18 are respectively communicated with a chilled water outlet pipeline 20. By arranging the two chilled water inlets 17 and the two chilled water outlets 18, the flow of chilled water entering and exiting the second cooling jacket 16 is increased, the heat exchange effect with materials in the reaction kettle 1 is better, the cooling time of the materials is reduced, and the process period is shortened.
The stirrer 6 of the reaction kettle 1 is an anchor stirrer 6. The anchor stirrer 6 increases the contact area with the materials in the reaction kettle 1, the heat exchange contact area between the materials and the kettle wall is large, the cooling time is shortened, and the cooling effect is better.
The upper part of the anchor stirrer 6 is provided with a guide cylinder 21. The materials enter the guide cylinder 21 under the stirring action of the anchor stirrer 6, and the stirring degree of the liquid is improved through the mixing and shearing of the guide cylinder 21, so that the mixing effect of the materials in the reaction kettle 1 is better, and the reaction is more thorough.
The bromine storage tank 3 is communicated with the vacuum pump 22 through a pipeline, and the vacuum pump 22 enables the bromine storage tank 3 to maintain micro negative pressure, thereby being beneficial to the preservation of bromine and having higher safety.
It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.
Claims (8)
1. The utility model provides a brominated polystyrene apparatus for producing, includes reation kettle, its characterized in that: the feed inlet of the reaction kettle is respectively communicated with a middle tank and a bromine storage tank through a pipeline, the feed inlet of the middle tank is communicated with a dissolution kettle through a pipeline, the middle tank is provided with a first cooling jacket, and the reaction kettle, the middle tank and the dissolution kettle are all provided with stirrers;
the bottom material outlet of the reaction kettle is communicated with a distillation kettle through a pipeline, the top gas phase outlet of the distillation kettle is communicated with a solvent recovery tank through a condenser, and the bottom material outlet of the distillation kettle is communicated with a finished product tank.
2. A brominated polystyrene production device as defined in claim 1 wherein: the inside bottom of dissolving kettle is equipped with the distributor, the distributor intercommunication has nitrogen gas admission line.
3. A brominated polystyrene production device as defined in claim 1 wherein: the top gas phase outlet of the reaction kettle is communicated with an absorption tower through a pipeline, and the top material outlet of the absorption tower is communicated with an absorption liquid temporary storage tank through a pipeline.
4. A brominated polystyrene production device as claimed in claim 3, wherein: the absorption tower is provided with an absorption liquid circulating pump, an inlet of the absorption liquid circulating pump is communicated to a bottom material outlet of the absorption tower through a pipeline, and an outlet of the absorption liquid circulating pump is communicated to a top material inlet of the absorption tower and the absorption liquid temporary storage tank through pipelines respectively.
5. A brominated polystyrene production device as defined in claim 1 wherein: the reaction kettle is provided with a second cooling jacket, the second cooling jacket is provided with two chilled water inlets and two chilled water outlets, the two chilled water inlets are respectively communicated with a chilled water inlet pipeline, and the chilled water outlets are respectively communicated with a chilled water outlet pipeline.
6. A brominated polystyrene production device as defined in claim 1 wherein: the stirrer of the reaction kettle is an anchor stirrer.
7. A brominated polystyrene production device as defined in claim 6 wherein: the upper part of the anchor stirrer is provided with a guide cylinder.
8. A brominated polystyrene production device as defined in claim 1 wherein: the bromine storage tank is communicated with a vacuum pump through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320380399.5U CN219333180U (en) | 2023-02-27 | 2023-02-27 | Brominated polystyrene apparatus for producing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320380399.5U CN219333180U (en) | 2023-02-27 | 2023-02-27 | Brominated polystyrene apparatus for producing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219333180U true CN219333180U (en) | 2023-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320380399.5U Active CN219333180U (en) | 2023-02-27 | 2023-02-27 | Brominated polystyrene apparatus for producing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219333180U (en) |
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2023
- 2023-02-27 CN CN202320380399.5U patent/CN219333180U/en active Active
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