CN102198391A - Guide-plate type ethene polymerization kettle used in slurry process - Google Patents
Guide-plate type ethene polymerization kettle used in slurry process Download PDFInfo
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- CN102198391A CN102198391A CN2010101347938A CN201010134793A CN102198391A CN 102198391 A CN102198391 A CN 102198391A CN 2010101347938 A CN2010101347938 A CN 2010101347938A CN 201010134793 A CN201010134793 A CN 201010134793A CN 102198391 A CN102198391 A CN 102198391A
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- autoclave body
- kettle
- guide plate
- deflector
- slurry process
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention relates to a guide-plate type ethene polymerization kettle used in a slurry process, comprising an autoclave body, a guide plate, a stirring device and multi-pipe distributors. The guide plate is a hollow slab and is located in the autoclave body; the ratio of the width of the guide plate to the diameter of the autoclave body is in a range of 0.1 to 0.3; the cross section of the guide plate is in a shape of parabola; the angle between the guide plate and the inside wall of the autoclave body is in a range of from 30 degrees to 90 degrees. The stirring device is arranged on the top of the autoclave body; a stirring shaft of the stirring device extends downwards and passes through the autoclave body and the hollow center of the guide plate; the lower part of the stirring shaft is near the bottom of the autoclave body and above the multi-pipe distributors; the bottom stirring paddle of the stirring shaft is of radial flow type and the upper stirring paddle of the stirring shaft is of axial flow type. The multi-pipe distributors employ a telescopic structure and uniformly distribute on the bottom of the autoclave body. The exterior wall of the autoclave body is provided with a jacket. The polymerization kettle provided in the invention has excellent heat-removing capacity, which enables a high conversion rate of ethene, and therefore the problem that heat produced in polymerization is difficult to remove in engineering scaling-up of a polymerization kettle is solved.
Description
Technical field
The present invention relates to a kind of slurry process vinyl polymerization still, relate in particular to a kind of slurry process guide plate type vinyl polymerization still.
Background technology
Adopting slurry process to produce poly process units is the vinyl polymerization still, and ethene and solvent are in reactor bottom charging, and product and solvent are in the reactor top discharge.Ethylene polymerization is a strong exothermal reaction, and formerly technology adopts and to place many sleeve pipes in chuck and the still and remove heat, thisly removes hot scheme owing to remove the limited reaction mass that causes of heat energy power in the reactor time of staying is grown, reactor production efficiency is low shortcoming.
Summary of the invention
The object of the present invention is to provide a kind of stronger reactor to remove heat energy power, thereby can improve the conversion ratio of ethene, reduce the slurry process guide plate type vinyl polymerization still of the reactor time of staying.
Slurry process guide plate type vinyl polymerization still of the present invention is made of kettle, deflector, agitating device, multitube distributor; Deflector is the cored slab structure, is positioned at kettle, and the deflector width is 0.1～0.3 with the ratio in still footpath, and cross section is parabola shaped, becomes 30 °～90 ° angle with the polymeric kettle madial wall; Agitating device is arranged on the kettle top, the shaft of agitating device passes from the space center of kettle and deflector formation downward vertically, and lower end part is the middle and lower part in kettle, multitube distributor top, the bottom oar of shaft is the radial flow paddle, and the upper strata oar is an axial-flow type aerofoil profile paddle; The multitube distributor adopts sleeve type structure, is evenly distributed on autoclave body bottom; The kettle outer wall is provided with chuck.
The number of tubes of described multitube distributor is 2～12.
Ethene and solvent enter reactor from reactor bottom by the multitube distributor, and thermal recovery hollow deflector removed by reactor and heat is removed in the chuck combination.
Slurry process vinyl polymerization still of the present invention adopts the hollow deflector structure, logical cooling medium in the hollow deflector.
It is strong that this polymeric kettle is removed heat energy power, thus the conversion ratio height of ethene, and the difficult problem of heat is removed in polymerization when having solved the polymeric kettle engineering and amplifying.
Description of drawings
The structural representation of Fig. 1 slurry process guide plate type vinyl polymerization still.
Fig. 2 slurry process guide plate type vinyl polymerization still cross sectional representation.
Wherein: 1, kettle 2, deflector 3, chuck 4, agitating device 5, shaft 6, paddle 7, paddle 8, multitube distributor
The specific embodiment
As shown in Figure 1 and Figure 2, slurry process guide plate type vinyl polymerization still of the present invention is made of kettle 1, deflector 2, agitating device 4, multitube distributor 8; Deflector 2 is the hollow sheeting structure, is positioned at kettle 1, and the deflector width is 0.1～0.3 with the ratio in still footpath, and cross section is parabola shaped, becomes 30 °～90 ° angle with the polymeric kettle madial wall; Agitating device 4 is arranged on the kettle top, the shaft 5 of agitating device passes from the space center of kettle and deflector formation downward vertically, and lower end part is the middle and lower part in kettle, multitube distributor 8 tops, the bottom oar of shaft is a radial flow paddle 7, and the upper strata oar is an axial-flow type aerofoil profile paddle 6; Multitube distributor 8 adopts sleeve type structure, is evenly distributed on autoclave body bottom; The kettle outer wall is provided with chuck 3.
The number of tubes of described multitube distributor is 2～12.
Claims (2)
1. a slurry process guide plate type vinyl polymerization still is made of kettle, deflector, agitating device, multitube distributor; It is characterized in that: deflector is the cored slab structure, is positioned at kettle, and the deflector width is 0.1～0.3 with the ratio in still footpath, and cross section is parabola shaped, becomes 30 °～90 ° angle with the polymeric kettle madial wall; Agitating device is arranged on the kettle top, the shaft of agitating device passes from the space center of kettle and deflector formation downward vertically, and lower end part is the middle and lower part in kettle, multitube distributor top, the bottom oar of shaft is the radial flow paddle, and the upper strata oar is an axial-flow type aerofoil profile paddle; The multitube distributor adopts sleeve type structure, is evenly distributed on autoclave body bottom; The kettle outer wall is provided with chuck.
2. slurry process guide plate type vinyl polymerization still according to claim 1, it is characterized in that: the number of tubes of multitube distributor is 2～12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010134793 CN102198391B (en) | 2010-03-26 | 2010-03-26 | Guide-plate type ethene polymerization kettle used in slurry process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010134793 CN102198391B (en) | 2010-03-26 | 2010-03-26 | Guide-plate type ethene polymerization kettle used in slurry process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102198391A true CN102198391A (en) | 2011-09-28 |
| CN102198391B CN102198391B (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010134793 Active CN102198391B (en) | 2010-03-26 | 2010-03-26 | Guide-plate type ethene polymerization kettle used in slurry process |
Country Status (1)
| Country | Link |
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| CN (1) | CN102198391B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580597A (en) * | 2012-03-07 | 2012-07-18 | 巨力新能源股份有限公司 | Device for quickly mixing, automatically delivering and filling slurry |
| CN110302736A (en) * | 2019-08-07 | 2019-10-08 | 上海蓝科石化环保科技股份有限公司 | Exchange heat polymerization reaction system and method in a kind of kettle for strongly exothermic polymerization reaction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318426A (en) * | 1999-12-20 | 2001-10-24 | 三菱丽阳株式会社 | Stirring arm, stirrer and method of preparing polymer using the stirrer |
| CN1618502A (en) * | 2003-11-21 | 2005-05-25 | 林炜 | Agitating evaporation apparatus |
| CN101185864A (en) * | 2007-09-03 | 2008-05-28 | 北京东方石油化工有限公司助剂二厂 | Mixing device for preparing polyethylene resin and slurry polymerization method using the same |
-
2010
- 2010-03-26 CN CN 201010134793 patent/CN102198391B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318426A (en) * | 1999-12-20 | 2001-10-24 | 三菱丽阳株式会社 | Stirring arm, stirrer and method of preparing polymer using the stirrer |
| CN1618502A (en) * | 2003-11-21 | 2005-05-25 | 林炜 | Agitating evaporation apparatus |
| CN101185864A (en) * | 2007-09-03 | 2008-05-28 | 北京东方石油化工有限公司助剂二厂 | Mixing device for preparing polyethylene resin and slurry polymerization method using the same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580597A (en) * | 2012-03-07 | 2012-07-18 | 巨力新能源股份有限公司 | Device for quickly mixing, automatically delivering and filling slurry |
| CN102580597B (en) * | 2012-03-07 | 2014-08-20 | 巨力新能源股份有限公司 | Device for quickly mixing, automatically delivering and filling slurry |
| CN110302736A (en) * | 2019-08-07 | 2019-10-08 | 上海蓝科石化环保科技股份有限公司 | Exchange heat polymerization reaction system and method in a kind of kettle for strongly exothermic polymerization reaction |
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| Publication number | Publication date |
|---|---|
| CN102198391B (en) | 2013-09-04 |
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