CN215234133U - Production system for styrene-butadiene latex polymerization reaction - Google Patents
Production system for styrene-butadiene latex polymerization reaction Download PDFInfo
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- CN215234133U CN215234133U CN202023310855.4U CN202023310855U CN215234133U CN 215234133 U CN215234133 U CN 215234133U CN 202023310855 U CN202023310855 U CN 202023310855U CN 215234133 U CN215234133 U CN 215234133U
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Abstract
The utility model relates to a butylbenzene latex polymerization's production system, include: the system comprises a first elevated tank, a second elevated tank, a polymerization kettle, a heat preservation kettle, a circulating heat exchanger and a delivery pump; wherein the bottoms of the first elevated tank and the second elevated tank are respectively connected with the top of the polymerization kettle; the bottom of the polymerization kettle is connected with the top of the heat preservation kettle through the delivery pump; heat exchange devices are arranged outside the polymerization kettle and the heat preservation kettle; the heat exchange device outside the heat preservation kettle is connected with the circulating heat exchanger; the connections are all pipeline connections. The utility model solves the time-consuming problem that the polymerization reaction and the heat preservation of the raw material process route are operated in the same reaction kettle; the polymerization and the heat preservation operation are separated, the use efficiency of the polymerization kettle is improved, the interval time among batches is reduced, and the product yield is improved; the reaction time of the polymerization kettle is shortened, the skinning probability is reduced, the times of washing the reaction kettle are reduced, and the production efficiency is improved.
Description
Technical Field
The utility model relates to a chemical production technology technical field especially relates to a butylbenzene latex polymerization's production system.
Background
The styrene-butadiene latex is generally used in the production of paper making, coating and other processes, and is generally prepared by copolymerizing butadiene and styrene to form carboxylated styrene-butadiene latex and then performing subsequent processing.
Polymerization reactions can generally be divided into two types: chain growth reactions and step growth reactions. The styrene/butadiene emulsion polymerization is of the second type, step growth. The reaction contains three different kinetic steps: initiating reaction, growing reaction and terminating reaction.
The reactive nucleus is a radical, that is to say the polymer has the same number of atoms as the corresponding monomer: no by-product is produced as a result of the polymerization reaction.
The following disadvantages are mainly encountered with the current polymerization processes:
1. the polymerization reaction and the heat preservation are carried out in the same kettle, and the heat preservation operation after the polymerization influences the production of the next batch of materials.
2. The operation time in the polymerization reaction kettle is too long, so that the probability of skinning is increased, and the product quality is influenced.
Aiming at the defects of the prior art, the process route of the invention separately carries out the operations, the materials are conveyed to the heat preservation kettle for heat preservation after the polymerization reaction is completed, the next batch of production operation can be carried out in the polymerization kettle, the heat preservation operation time in the polymerization kettle is saved, the product yield is improved, and the product skinning probability is reduced and the product quality is improved because the time for participating in the reaction in the polymerization kettle is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a production system of butylbenzene latex polymerization to the not enough among the prior art.
In order to achieve the purpose, the utility model adopts the technical proposal that:
provided is a production system for styrene-butadiene latex polymerization, comprising: the system comprises a first elevated tank, a second elevated tank, a polymerization kettle, a heat preservation kettle, a circulating heat exchanger and a delivery pump;
wherein the bottoms of the first elevated tank and the second elevated tank are respectively connected with the top of the polymerization kettle; the bottom of the polymerization kettle is connected with the top of the heat preservation kettle through the delivery pump; heat exchange devices are arranged outside the polymerization kettle and the heat preservation kettle; the heat exchange device outside the heat preservation kettle is connected with the circulating heat exchanger; the connections are all pipeline connections.
Preferably, the method further comprises the following steps: a plurality of raw material storage tanks and a plurality of auxiliary material storage tanks; the raw material storage tanks are all connected with the polymerization kettle; the auxiliary material storage tanks are respectively connected with the first elevated tank or the second elevated tank; the connections are all pipeline connections.
Preferably, the method further comprises the following steps: a static mixer; the static mixer is arranged at the intersection of the raw material storage tanks and the polymerization kettle connecting pipeline.
Preferably, a delivery pump, a mass flow meter and a regulating valve are sequentially arranged among the static mixer, the first elevated tank or the second elevated tank and the polymerization kettle.
Preferably, stirring devices are arranged in the first elevated tank, the second elevated tank, the polymerization kettle and the heat preservation kettle.
Preferably, the method further comprises the following steps: and the PLC control device is respectively in circuit connection with each conveying pump, the stirring device, the heating device, the circulating heat exchanger and the conveying pump.
The utility model adopts the above technical scheme, compare with prior art, have following technological effect:
the utility model solves the time-consuming problem that the polymerization reaction and the heat preservation of the raw material process route are operated in the same reaction kettle; the polymerization and the heat preservation operation are separated, the use efficiency of the polymerization kettle is improved, the interval time among batches is reduced, and the product yield is improved; the reaction time of the polymerization kettle is shortened, the skinning probability is reduced, the times of washing the reaction kettle are reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a production system for polymerization of styrene-butadiene latex according to the present invention;
wherein the reference numerals include: a first elevated tank 1, a second elevated tank 2, a polymerization kettle 3, a heat preservation kettle 4, a circulating heat exchanger 5 and a delivery pump 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Examples
Provided is a production system for styrene-butadiene latex polymerization, comprising: a first elevated tank 1, a second elevated tank 2, a polymerization kettle 3, a heat preservation kettle 4, a circulating heat exchanger 5 and a delivery pump 6;
wherein the bottoms of the first elevated tank 1 and the second elevated tank 2 are respectively connected with the top of the polymerization kettle 3; the bottom of the polymerization kettle 3 is connected with the top of the heat preservation kettle 4 through the conveying pump 6; heat exchange devices are arranged outside the polymerization kettle 3 and the heat preservation kettle 4; the heat exchange device outside the heat preservation kettle 4 is connected with the circulating heat exchanger 5; the connections are all pipeline connections.
Preferably, the method further comprises the following steps: a plurality of raw material storage tanks and a plurality of auxiliary material storage tanks; the raw material storage tanks are all connected with the polymerization kettle 3; the auxiliary material storage tanks are respectively connected with the first elevated tank 1 or the second elevated tank 2; the connections are all pipeline connections.
Preferably, the method further comprises the following steps: a static mixer; the static mixer is arranged at the intersection of the raw material storage tanks and the polymerization kettle 3 connecting pipeline.
Preferably, a delivery pump, a mass flow meter and a regulating valve are sequentially arranged between the static mixer, the first elevated tank 1 or the second elevated tank 2 and the polymerization kettle 3.
Preferably, stirring devices are arranged in the first elevated tank 1, the second elevated tank 2, the polymerization kettle 3 and the heat preservation kettle 4.
Preferably, the method further comprises the following steps: and the PLC control device is respectively in circuit connection with each conveying pump, the stirring device, the heating device, the circulating heat exchanger 5 and the conveying pump 6.
The production process of the styrene-butadiene latex polymerization reaction is provided, raw materials are directly conveyed from a raw material storage tank through a conveying pump, a mass flow meter is adopted for metering, and then the raw materials enter a polymerization kettle after the feeding flow is adjusted through an adjusting valve; metering or/and mixing the auxiliary materials in a head tank (namely stirring for 15 minutes), and then feeding the auxiliary materials into a polymerization kettle (steam is previously introduced into the polymerization kettle and heated to 86-88 ℃) through a delivery pump, a mass flow meter and an adjusting valve; setting the feeding amount of raw materials according to the process requirements, mixing the raw materials by using a static mixer, then transferring the raw materials into a polymerization kettle under the controlled flow ratio, and allowing the raw materials and auxiliary materials to simultaneously enter the polymerization kettle for reaction (the dropping time of the auxiliary materials is about 4.5 hours, and the feeding is stopped when the pressure of the polymerization kettle is higher than 0.9 MPa); the reaction is carried out in a water phase, the reaction temperature is strictly controlled at 80-85 ℃, a polymer product dispersed in water is generated by the reaction, and the reaction pressure is generally controlled at less than 0.4MPa-0.5 MPa; transferring the materials into a heat preservation kettle after the polymerization reaction, preserving the heat of the materials, wherein the highest temperature in the heat preservation process is not more than 100 ℃, and finishing the heat preservation operation after 1 hour; transferring the materials to the next production unit; meanwhile, the polymerization kettle can carry out the production of the next batch after transferring away the materials.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (6)
1. A production system for styrene-butadiene latex polymerization, comprising: a first elevated tank (1), a second elevated tank (2), a polymerization kettle (3), a heat preservation kettle (4), a circulating heat exchanger (5) and a delivery pump (6);
wherein the bottoms of the first elevated tank (1) and the second elevated tank (2) are respectively connected with the top of the polymerization kettle (3); the bottom of the polymerization kettle (3) is connected with the top of the heat preservation kettle (4) through the conveying pump (6); heat exchange devices are arranged outside the polymerization kettle (3) and the heat preservation kettle (4); the heat exchange device outside the heat preservation kettle (4) is connected with the circulating heat exchanger (5); the connections are all pipeline connections.
2. The production system of claim 1, further comprising: a plurality of raw material storage tanks and a plurality of auxiliary material storage tanks; the raw material storage tanks are all connected with the polymerization kettle (3); the auxiliary material storage tanks are respectively connected with the first elevated tank (1) or the second elevated tank (2); the connections are all pipeline connections.
3. The production system of claim 2, further comprising: a static mixer; the static mixer is arranged at the intersection of the raw material storage tanks and the connecting pipeline of the polymerization kettle (3).
4. The production system according to claim 3, wherein a transfer pump, a mass flow meter and a regulating valve are sequentially arranged between the static mixer, the first head tank (1) or the second head tank (2) and the polymerizer (3).
5. The production system according to claim 1, wherein stirring devices are arranged in the first elevated tank (1), the second elevated tank (2), the polymerization kettle (3) and the heat preservation kettle (4).
6. The production system according to any one of claims 1 to 5, further comprising: and the PLC control device is respectively in circuit connection with each conveying pump, the stirring device, the heating device, the circulating heat exchanger (5) and the conveying pump (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023310855.4U CN215234133U (en) | 2020-12-30 | 2020-12-30 | Production system for styrene-butadiene latex polymerization reaction |
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| CN202023310855.4U CN215234133U (en) | 2020-12-30 | 2020-12-30 | Production system for styrene-butadiene latex polymerization reaction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253912A (en) * | 2022-07-27 | 2022-11-01 | 山东亿科化学有限责任公司 | High solid content butadiene styrene latex preparation equipment |
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2020
- 2020-12-30 CN CN202023310855.4U patent/CN215234133U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253912A (en) * | 2022-07-27 | 2022-11-01 | 山东亿科化学有限责任公司 | High solid content butadiene styrene latex preparation equipment |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A production system of styrene butadiene latex polymerization Effective date of registration: 20220623 Granted publication date: 20211221 Pledgee: Jining Yanzhou sub branch of Rizhao Bank Co.,Ltd. Pledgor: JINING MINGSHENG NEW MATERIAL Co.,Ltd. Registration number: Y2022980008666 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |