CN214020695U - Polycarbonate reactor washs material returned device - Google Patents
Polycarbonate reactor washs material returned device Download PDFInfo
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- CN214020695U CN214020695U CN202022584911.7U CN202022584911U CN214020695U CN 214020695 U CN214020695 U CN 214020695U CN 202022584911 U CN202022584911 U CN 202022584911U CN 214020695 U CN214020695 U CN 214020695U
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Abstract
The utility model provides a polycarbonate reactor washs material returned device, including prepolymer reactor, prepolymer reactor export is through taking the first pipeline of prepolymerization delivery pump and condensation reactor import intercommunication, condensation reactor export is through taking the second pipeline of condensation delivery pump and gathering reactor import intercommunication eventually, the scavenge pipe respectively with prepolymer reactor import, condensation reactor import and gather reactor export intercommunication eventually, first material returned jar is respectively through taking the pipeline of valve and first pipeline and second pipeline intercommunication, gather reactor export eventually and gather the pipeline of delivery pump and preceding driving valve and expect groove or arrange the dolly intercommunication useless before taking, material returned groove is through taking the pipeline of material returned groove delivery pump and second material returned jar intercommunication. The utility model provides a polycarbonate reactor washs material returned device can solve the material returned not thoroughly, and the long easy problem that causes equipment to destroy of cleaning time washs used prepolymer reactor, condensation reactor and final polymerization reactor simultaneously to the polycarbonate reaction.
Description
Technical Field
The utility model belongs to the technical field of the polycarbonate polymerization technique and specifically relates to a polycarbonate reactor washs material returned device.
Background
Polycarbonate polymerization materials in a polycarbonate polymerization process have the characteristics of high viscosity, large molecular weight, high solidifying point and the like, when a production device is shut down, the materials cannot be smoothly discharged from a reactor and related pipeline equipment, the reactor and the pipeline need to be cleaned, if the material is not returned completely, the materials are solidified, the equipment is damaged, if the cleaning time is too long, cleaning liquid cannot be discharged in time, the cleaning liquid is carbonized, the equipment and the pipeline are attached, and the equipment is influenced to be reused, so that the polycarbonate reactor cleaning and material returning device is very necessary.
Disclosure of Invention
The utility model aims to solve the technical problem that a polycarbonate reactor washs material returned device is provided, can solve the material returned not thoroughly, the long problem that causes equipment damage easily of scavenging period, to the used prepolymer reactor of polycarbonate reaction, condensation reactor and final polymerization reactor wash simultaneously, have reduced because of the parking time is long, the material solidifies stifled pipe, the risk that equipment damaged.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a polycarbonate reactor washs material returned device, including prepolymer reactor, prepolymer reactor export is through taking the first pipeline of prepolymerization delivery pump and condensation reactor import intercommunication, condensation reactor export is through taking the second pipeline of condensation delivery pump and gathering reactor import intercommunication eventually, the scavenge pipe respectively with prepolymer reactor import, condensation reactor import and gather reactor export intercommunication eventually, first material returned jar is respectively through taking the pipeline of valve and first pipeline and second pipeline intercommunication, gather reactor export eventually and gather the pipeline of delivery pump and preceding driving valve and expect groove or arrange the dolly intercommunication useless before taking, material returned groove is through taking the pipeline of material returned groove delivery pump and second material returned jar intercommunication.
Preferably, the purge line is connected to the first line via a valved third line and then to the condensation reactor inlet.
Preferably, the front start valve is also communicated with the return chute or the waste discharge trolley through a pipeline with an extruder and a rear start valve.
Preferably, the first material returning tank is communicated with the processing device through a pipeline with a first material returning tank conveying pump, and the second material returning tank is communicated with the processing device through a pipeline with a second material returning tank conveying pump.
The pipeline with the first material returning tank conveying pump is communicated with the pipeline with the second material returning tank conveying pump and then communicated with the processing device.
The utility model provides a polycarbonate reactor washs material returned device, beneficial effect as follows:
1. the prepolymer reactor, the condensation reactor and the final polymerization reactor used for polycarbonate reaction are cleaned simultaneously, so that the risk of equipment damage caused by long shutdown time, pipe blockage due to material solidification is reduced.
2. Because first material returned jar and second material returned jar can communicate each other, given the most sufficient space of washing material returned and cushioned.
3. Because first material returned jar and second material returned jar can communicate each other, the washing liquid can be gone on each other and cluster, dilutes, degradation polymer, and the washing liquid is arranged outward and is reduced, and the cleaning cost reduces, and it is simpler to handle the washing liquid, requires to reduce.
Can solve the material returned thoroughly, the problem of the long easy equipment damage that causes of scavenging period, the polycarbonate reactor has been given and has been washd the sufficient space of material returned, the material returned flow of different reactor washing liquids has been distinguished, long because of the parking time has been reduced, the stifled pipe is solidified to the material, the risk of equipment damage, the washing liquid can be gone on each other and cluster, dilute, the degradation polymer, the washing liquid is arranged outward and is reduced, the cleaning cost reduces, it is simpler to handle the washing liquid, thereby the requirement reduces and has ensured the high efficiency and the stability that the polycarbonate reactor washd the material returned.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in figure 1, a polycarbonate reactor cleaning and material returning device comprises a prepolymer reactor 1, wherein an outlet of the prepolymer reactor 1 is communicated with an inlet of a condensation reactor 3 through a first pipeline 19 with a prepolymerization delivery pump 2, an outlet of the condensation reactor 3 is communicated with an inlet of a final polymerization reactor 5 through a second pipeline 20 with a condensation delivery pump 4, a cleaning pipe 15 is respectively communicated with the inlet of the prepolymer reactor 1, the inlet of the condensation reactor 3 and the outlet of the final polymerization reactor 5, a first material returning tank 10 is respectively communicated with the first pipeline 19 and the second pipeline 20 through pipelines with valves, an outlet of the final polymerization reactor 5 is communicated with a material returning tank 17 or a waste discharge trolley 16 through a pipeline with a final polymerization delivery pump 6 and a front start valve 7, and the material returning tank 17 is communicated with a second material returning tank 12 through a pipeline with a material returning tank delivery pump 18.
The cleaning pipe 15 is communicated with the first pipeline 19 through a third pipeline 21 with a valve and then communicated with the inlet of the condensation reactor 3.
The front start-up valve 7 is also communicated with a material returning groove 17 or a waste discharge trolley 16 through a pipeline with an extruder 8 and a rear start-up valve 9.
The first material returning tank 10 is communicated with the processing device 14 through a pipeline with a first material returning tank delivery pump 11, and the second material returning tank 12 is communicated with the processing device 14 through a pipeline with a second material returning tank delivery pump 13.
The pipeline with the first material return tank conveying pump 11 is communicated with the pipeline with the second material return tank conveying pump 13 and then communicated with the processing device 14.
The flow rates of the first material return tank conveying pump 11 and the second material return tank conveying pump 13 are preferably 9m3/h。
The working process of the utility model is as follows:
introducing a diphenyl carbonate cleaning solution into the cleaning pipe 15, introducing the diphenyl carbonate cleaning solution into the prepolymer reactor 1, cleaning the prepolymer reactor 1, and returning the material to the first material returning tank 10;
introducing a diphenyl carbonate cleaning solution into the cleaning pipe 15, feeding the diphenyl carbonate cleaning solution into the condensation reactor 3 through an inlet of the condensation reactor, cleaning the condensation reactor 3, and respectively returning the cleaned diphenyl carbonate cleaning solution to the first material returning tank 10 from the first pipeline 19 (namely an inlet pipeline) and the second pipeline 20 (namely an outlet pipeline);
introducing diphenyl carbonate cleaning solution into the cleaning pipe 15, entering the final polymerization reactor 5 through the outlet of the final polymerization reactor, cleaning the final polymerization reactor 5, and returning the material from the second pipeline 20 (namely an inlet pipeline) to the first material returning tank 10; meanwhile, returning the materials to a material returning groove 17 along the pipeline with the front start valve 7, and when the viscosity of the materials in the early stage of material returning is high and the solidification point is high, communicating the pipeline with the front start valve 7 with a waste discharge trolley 16 and discharging the waste to the waste discharge trolley 16.
The cleaning liquid in the material returning groove 17 is conveyed to the second material returning tank 12 through a material returning groove conveying pump 18;
when the viscosity of the second material returning tank 12 is high, the cleaning liquid of the front-stage reactor is delivered to the second material returning tank 12 for mixing through a first material returning tank delivery pump 11 of the first material returning tank 10, and the polymer is degraded;
the substances treated by the second material withdrawal tank 12 and the first material withdrawal tank 10 are conveyed to the treatment device 4 by a conveying pump,
when the processing device 4 can not process, the second material returning tank 12 is communicated with the first material returning tank 10, so that the cleaning liquid is mutually connected, diluted and degraded to degrade polymers, and the processing capacity is improved.
Can solve the material returned thoroughly, the problem of the long easy equipment damage that causes of scavenging period, the polycarbonate reactor has been given and has been washd the sufficient space of material returned, the material returned flow of different reactor washing liquids has been distinguished, long because of the parking time has been reduced, the stifled pipe is solidified to the material, the risk of equipment damage, the washing liquid can be gone on each other and cluster, dilute, the degradation polymer, the washing liquid is arranged outward and is reduced, the cleaning cost reduces, it is simpler to handle the washing liquid, thereby the requirement reduces and has ensured the high efficiency and the stability that the polycarbonate reactor washd the material returned.
The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (5)
1. The utility model provides a polycarbonate reactor washs material returned device, includes prepolymer reactor (1), prepolymer reactor (1) export is through taking first pipeline (19) and condensation reactor (3) the import intercommunication of prepolymerization delivery pump (2), and condensation reactor (3) export is through taking second pipeline (20) and condensation delivery pump (4) and final polymerization reactor (5) import intercommunication, its characterized in that: the cleaning pipe (15) is respectively communicated with an inlet of the prepolymer reactor (1), an inlet of the condensation reactor (3) and an outlet of the final polymerization reactor (5), the first material returning tank (10) is respectively communicated with the first pipeline (19) and the second pipeline (20) through a pipeline with a valve, an outlet of the final polymerization reactor (5) is communicated with the material returning tank (17) or the waste discharge trolley (16) through a pipeline with a final polymerization delivery pump (6) and a front start valve (7), and the material returning tank (17) is communicated with the second material returning tank (12) through a pipeline with a material returning tank delivery pump (18).
2. The polycarbonate reactor cleaning and material return apparatus of claim 1, wherein: the cleaning pipe (15) is communicated with the first pipeline (19) through a third pipeline (21) with a valve and then is communicated with the inlet of the condensation reactor (3).
3. The polycarbonate reactor cleaning and material return apparatus of claim 1, wherein: the front start valve (7) is also communicated with a material returning groove (17) or a waste discharge trolley (16) through a pipeline with an extruder (8) and a rear start valve (9).
4. The polycarbonate reactor cleaning and material return apparatus of claim 1, wherein: the first material returning tank (10) is communicated with the processing device (14) through a pipeline with a first material returning tank delivery pump (11), and the second material returning tank (12) is communicated with the processing device (14) through a pipeline with a second material returning tank delivery pump (13).
5. The polycarbonate reactor cleaning and material return apparatus of claim 4, wherein: the pipeline with the first material returning tank conveying pump (11) is communicated with the pipeline with the second material returning tank conveying pump (13) and then communicated with the processing device (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022584911.7U CN214020695U (en) | 2020-11-10 | 2020-11-10 | Polycarbonate reactor washs material returned device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022584911.7U CN214020695U (en) | 2020-11-10 | 2020-11-10 | Polycarbonate reactor washs material returned device |
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| Publication Number | Publication Date |
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| CN214020695U true CN214020695U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022584911.7U Active CN214020695U (en) | 2020-11-10 | 2020-11-10 | Polycarbonate reactor washs material returned device |
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| CN (1) | CN214020695U (en) |
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