CN106046214A - Batch production technology for circulating feeding of polymerizers - Google Patents
Batch production technology for circulating feeding of polymerizers Download PDFInfo
- Publication number
- CN106046214A CN106046214A CN201610390657.2A CN201610390657A CN106046214A CN 106046214 A CN106046214 A CN 106046214A CN 201610390657 A CN201610390657 A CN 201610390657A CN 106046214 A CN106046214 A CN 106046214A
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- CN
- China
- Prior art keywords
- polymeric kettle
- pan feeding
- production line
- feeding
- pure water
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F14/02—Monomers containing chlorine
- C08F14/04—Monomers containing two carbon atoms
- C08F14/06—Vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polymerisation Methods In General (AREA)
Abstract
The invention discloses a batch production technology for circulating feeding of polymerizers. According to the technology, multiple polymerizer production lines are adopted and connected with a kettle coating liquid system, a buffering agent system, a dispersing system, a pure water and monomer feeding system, an initiator system, a polymerizing reaction system, a terminating agent system and a discharging system respectively; a feeding control system is further adopted and controls one production line to sequentially execute steps as follows: S1 the kettle coating liquid system is activated to automatically add a kettle coating liquid; S2 the buffering agent system is activated to automatically add a buffering agent; S3 the pure water and monomer feeding system is activated to automatically add pure water and monomers, and meanwhile, the dispersing system is activated; S4 the initiator system is activated to add an initiator; S5 the polymerizing reaction system is activated to enter a polymerizing reaction stage; after one production line starts a feeding procedure and runs from S1 to S5, another production line starts the feeding procedure, and the operation is conducted after the previous production line completes all the steps from S1 to S5. With the adoption of the technology, the utilization rate of the polymerizers can be increased, and the feeding time of the polymerizers can be shortened.
Description
Technical field
The present invention relates to polrvinyl chloride the techniques of mass production field, particularly relate to the batch of a kind of polymeric kettle circulation pan feeding
Production technology.
Background technology
Polrvinyl chloride is to be formed by chloroethylene polymerization, during reaction needs the auxiliary agent such as initiator and dispersant to participate in, reaction
It it is exothermic reaction.Under prior art, after polyreaction terminates, need operator to manually select the polymeric kettle terminated to reaction and add
During terminator, but, in the case of having a plurality of polymeric kettle production line, it is easy to the wrong polymeric kettle of choosing occurs, and will react
Polymeric kettle add terminator by mistake and terminate reaction, cause production loss.And the most each polymeric kettle production line is all independent
Work, the production cycle is long, and utilization rate of equipment and installations is low.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is the stability how ensureing to produce, and improves polymeric kettle utilization rate, shortens poly-
Close the still pan feeding time.
(2) technical scheme
In order to solve above-mentioned technical problem, the present invention provides the mass production processes of a kind of polymeric kettle circulation pan feeding, including
A plurality of polymeric kettle production line, every described polymeric kettle production line includes polymeric kettle and the painting still liquid being connected respectively with described polymeric kettle
System, buffer system, dispersant system, pure water and monomer material feeding system, initiator system, polymerization reaction system, terminator
System and discharge system；It also includes pan feeding control system；After starting described pan feeding control system, described pan feeding control system control
Make a polymeric kettle production line perform successively step S1, activate be coated with still liquid system be automatically added to be coated with still liquid；Step S2, activation buffering
Agent system is automatically added to buffer agent；Step S3, activation pure water and monomer material feeding system are automatically added to pure water and monomer, start simultaneously
Dispersant system automated back-up dispersant, polymeric kettle working order is observed in time delay；Step S4, startup initiator system add initiation
Agent；Step S5, activation polymerization reaction system enter polymerization stage；Step S6, according to polymeric kettle reaction pressure drop change inspection
After survey reaches setting value, automatically activate terminator system and add terminator；Step S7, startup discharge system carry out discharging；
After described pan feeding control system controls a polymeric kettle production line startup pan feeding program, and program operates in step
Time during rapid S1-S5, when another polymeric kettle production line starts pan feeding program, can only enter in arrangement wait, treat that previous bar gathers
Close after step S1-S5 is run by still production line and carry out again.
Wherein, after described pan feeding control system starts, first automatically to being coated with still liquid system, buffer system, dispersant system
System, pure water and monomer material feeding system and initiator system carry out checking whether at clear position, judge polyreaction system simultaneously
Whether system valve around is meeting the position that pan feeding requires.
(3) beneficial effect
Compared with prior art, the invention have the advantages that
The mass production processes of a kind of polymeric kettle circulation pan feeding that the present invention provides, controls polymerization by pan feeding control system
When still adds pure water and monomer, start dispersant system, the actual time that dispersant is filled is compressed in add pure water and monomer time
In, so can shorten the non-cutting time of pan feeding；And terminator can be added by automatic decision by pan feeding control system
On opportunity, reduce the probability of operator's maloperation, it is ensured that the stability of production；And pan feeding control system can be according to when reacting
Between circulation between reasonable arrangement a plurality of polymeric kettle production line batch, make to run closely between the every batch of polymeric kettle, it is ensured that production
Carry out in order.
Accompanying drawing explanation
Fig. 1 is the flow chart of the mass production processes of a kind of polymeric kettle of embodiment of the present invention circulation pan feeding.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described in further detail.Following instance
For the present invention is described, but it is not limited to the scope of the present invention.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition
Concrete meaning in invention.
Term " first ", " second ", " the 3rd " etc. are only used for describing purpose, and it is not intended that indicate or imply relatively heavy
The property wanted.
Additionally, in describing the invention, except as otherwise noted, " multiple ", " many ", " many groups " be meant that two or
Two or more.
The invention provides the mass production processes of a kind of polymeric kettle circulation pan feeding, including a plurality of polymeric kettle production line, often
Polymeric kettle production line described in bar includes polymeric kettle and the painting still liquid system being connected respectively with described polymeric kettle, buffer system, divides
Powder system, pure water and monomer material feeding system, initiator system, polymerization reaction system, terminator system and discharge system；It is also
Including the pan feeding control system being connected with described a plurality of polymeric kettle production line；After starting described pan feeding control system, described pan feeding
Control system one polymeric kettle production line of control performs step S1 successively, activation is coated with still liquid system and is automatically added to be coated with still liquid；Step
S2, activation buffer system are automatically added to buffer agent；Step S3, activation pure water and monomer material feeding system are automatically added to pure water and list
Body, starts dispersant system automated back-up dispersant simultaneously, such that it is able to shorten the polymeric kettle pan feeding time, polymeric kettle is observed in time delay
Working order；Step S4, startup initiator system add initiator；Step S5, activation polymerization reaction system enter polyreaction
Stage；After step S6, change-detection according to polymeric kettle reaction pressure drop reach setting value, automatically activate terminator system and add eventually
Only agent；Step S7, startup discharge system carry out discharging；
After described pan feeding control system controls a polymeric kettle production line startup pan feeding program, and program operates in step
Time during rapid S1-S5, when another polymeric kettle production line starts pan feeding program, can only enter in arrangement wait, treat that previous bar gathers
Close after step S1-S5 is run by still production line and carry out again；Thus after a polymeric kettle production line pan feeding terminates, Ji Keqi
Next polymeric kettle pan feeding program dynamic, such that it is able between according to response time reasonable arrangement a plurality of polymeric kettle production line batch
Circulation；Make to run closely between the every batch of polymeric kettle, it is ensured that carrying out in order of production.
Wherein, after described pan feeding control system starts, first automatically to being coated with still liquid system, buffer system, dispersant system
System, pure water and monomer material feeding system and initiator system carry out checking whether at clear position, judge polyreaction system simultaneously
Whether system valve around is meeting the position that pan feeding requires；Step S1-S7 after just performing after meeting the requirements.
According to technological requirement, can be with reasonable arrangement polymerization reaction time, by phase between every each production batch of polymeric kettle
Mutually linking, the most time-consuming but also avoid the maloperation of personnel.
Below by a specific embodiment present invention is described:
As it is shown in figure 1, for 70m3Polymeric kettle, the general polymerization response time at about 320 minutes, be coated with still liquid 1 joining day 6
Minute, 4 minutes buffer agent 2 joining days, pure water and 22 minutes monomer 4 joining days, dispersant is usually two kinds, for the ease of
Describing, represent with the first dispersant 3-1 and the second dispersant 3-2, the first dispersant 3-1 gets the raw materials ready 5 minutes time, the second dispersant
3-2 gets the raw materials ready 5 minutes time, first 5 minutes dispersant 3-1 joining days, second 5 minutes dispersant 3-2 joining days, initiator
64 minutes joining days, 5 minutes terminator 7 joining days, 20 minutes discharging 8 time.
After starting 1# still polymerization pan feeding program, can be automatically added to be coated with still liquid 1, buffer agent 2, pure water and monomer 4 successively, simultaneously
Back up the first dispersant 3-1 and the second dispersant 3-2, after being finished, time delay 90 seconds, automatically add the first dispersant 3-1 and
Two dispersant 3-2, time delay 300 seconds, add initiator 6, enter polyreaction 5 stage, now 2# still or other still can start into
Material program, after 1# still detects that pressure drop reaches setting value, is automatically added to terminator 7, carries out discharging 8.
If 1# still pan feeding, the last pan feeding of 7# still, after 7# still pan feeding terminates, 1# still or has been enter into discharging program, this
Time 1# still can pan feeding again, so can circulate pan feeding and discharging, effectively improve utilization rate of equipment and installations.
As can be seen from the above embodiments, the present invention is by arranging the control program of pan feeding control system, it is possible to make polymerization
Run closely between the every batch of still, it is ensured that carrying out in order of production；And ensure that the stability of production, improve polymeric kettle and utilize
Rate, shortens the polymeric kettle pan feeding time.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (2)
1. a mass production processes for polymeric kettle circulation pan feeding, including a plurality of polymeric kettle production line, every described polymeric kettle is raw
Produce line include polymeric kettle and the painting still liquid system being connected respectively with described polymeric kettle, buffer system, dispersant system, pure water and
Monomer material feeding system, initiator system, polymerization reaction system, terminator system and discharge system；It is characterized in that, also include into
Material control system；After starting described pan feeding control system, described pan feeding control system controls a polymeric kettle production line and holds successively
Row step S1, activation are coated with still liquid system and are automatically added to be coated with still liquid；Step S2, activation buffer system are automatically added to buffer agent；Step
Rapid S3, activation pure water and monomer material feeding system are automatically added to pure water and monomer, start the dispersion of dispersant system automated back-up simultaneously
Agent, polymeric kettle working order is observed in time delay；Step S4, startup initiator system add initiator；Step S5, activation polyreaction
System enters polymerization stage；Step S6, according to polymeric kettle reaction pressure drop change-detection reach setting value after, automatically activate
Terminator system adds terminator；Step S7, startup discharge system carry out discharging；
After described pan feeding control system controls a polymeric kettle production line startup pan feeding program, and program operates in step
Time during S1-S5, when another polymeric kettle production line starts pan feeding program, can only enter in arrangement wait, treat that previous bar is polymerized
Still production line is carried out after step S1-S5 being run again.
The mass production processes of polymeric kettle the most according to claim 1 circulation pan feeding, it is characterised in that described pan feeding controls
After system start-up, first automatically to be coated with still liquid system, buffer system, dispersant system, pure water and monomer material feeding system and
Initiator system carries out checking whether at clear position, judges whether the valve around polymerization reaction system is meeting pan feeding simultaneously
The position required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390657.2A CN106046214A (en) | 2016-06-02 | 2016-06-02 | Batch production technology for circulating feeding of polymerizers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390657.2A CN106046214A (en) | 2016-06-02 | 2016-06-02 | Batch production technology for circulating feeding of polymerizers |
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| CN106046214A true CN106046214A (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610390657.2A Pending CN106046214A (en) | 2016-06-02 | 2016-06-02 | Batch production technology for circulating feeding of polymerizers |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050136547A1 (en) * | 2003-12-22 | 2005-06-23 | Abb Inc. | Polymer reaction and quality optimizer |
| CN102863570A (en) * | 2012-10-11 | 2013-01-09 | 江苏省格林艾普化工股份有限公司 | Seventy cubic meter polymeric kettle feeding process for producing polrvinyl chloride |
| CN103408681A (en) * | 2013-07-23 | 2013-11-27 | 沈阳化工大学 | Method for largely raising polyvinyl chloride productivity |
-
2016
- 2016-06-02 CN CN201610390657.2A patent/CN106046214A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050136547A1 (en) * | 2003-12-22 | 2005-06-23 | Abb Inc. | Polymer reaction and quality optimizer |
| CN102863570A (en) * | 2012-10-11 | 2013-01-09 | 江苏省格林艾普化工股份有限公司 | Seventy cubic meter polymeric kettle feeding process for producing polrvinyl chloride |
| CN103408681A (en) * | 2013-07-23 | 2013-11-27 | 沈阳化工大学 | Method for largely raising polyvinyl chloride productivity |
Non-Patent Citations (7)
| Title |
|---|
| ADRIAAN A. TATES等: "Monitoring a PVC Batch Process with Multivariate Statistical Process Control Charts", 《IND. ENG. CHEM. RES.》 * |
| 何瑞锭等: "聚氯乙烯生产的批量控制和批量管理", 《聚氯乙烯》 * |
| 侯艳永: "体外冷凝器在70m3聚合釜的应用与改进", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
| 段琳等: "控制技术在PVC聚合过程中的应用", 《聚氯乙烯》 * |
| 温新根等: "间歇生产多套公用设备优化控制的研究", 《自动化仪表》 * |
| 申屠久洪等: "悬浮法70m3釜聚氯乙烯生产DCS控制系统设计及全自动批量控制", 《中国氯碱》 * |
| 郑继楚: "聚氯乙烯批量生产自动控制策略", 《基础自动化》 * |
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Application publication date: 20161026 |