CN104226228B - MBS emulsion polymerization still - Google Patents
MBS emulsion polymerization still Download PDFInfo
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- CN104226228B CN104226228B CN201410521379.0A CN201410521379A CN104226228B CN 104226228 B CN104226228 B CN 104226228B CN 201410521379 A CN201410521379 A CN 201410521379A CN 104226228 B CN104226228 B CN 104226228B
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- reaction kettle
- kettle body
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Abstract
The present invention relates to a kind of MBS emulsion polymerization still, belong to technical field of chemical。The present invention includes reaction kettle body, charging aperture and discharging opening, is provided with motor at reaction kettle body top, and the shaft of described driven by motor agitating device rotates；Described agitating device gos deep in reaction kettle body, is equipped with stirrer paddle in shaft end and centre position；Described stirrer paddle is pusher blade and SANYE swept-back blade；Described reaction kettle body top arranges condensing unit。The present invention has the advantage that simple in construction, mix homogeneously, good stability and polymerization efficiency are high。
Description
Technical field
The present invention relates to a kind of MBS emulsion polymerization still, belong to technical field of chemical。
Background technology
Polymerization reaction kettle is the equipment that some chemical products are indispensable in industrialized production, is especially widely used in the reactor in large-scale MBS polymerization process, and its whipped form determines the efficiency of polyreaction, the stability of polyreaction and product quality。The method adopting emulsion polymerization during MBS polymerization, mechanical stability during polymerization is even more important。Emulsion is polymerized except recipe-imposed performance indications, and technique and the design in reactor structure are most important。
Traditional polymerization reaction kettle, is generally the single whipped forms such as layer-stepping stirring, frame type stirring, is characterized in that mixing is uneven, and the direction dynamics of stirring is mainly on horizontal level, and bottom is to liquid level, and various material concentration gradient difference are very big, mix uneven；Meanwhile, the temperature difference of each point is also relatively big, and reaction condition also differs relatively big, affects product quality, and reactor is inefficient。
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provides a kind of MBS emulsion polymerization, has the advantage that simple in construction, mix homogeneously, good stability and polymerization efficiency are high。
The technical solution adopted for the present invention to solve the technical problems is:
Described MBS emulsion polymerization still, including reaction kettle body, charging aperture and discharging opening, is provided with motor at reaction kettle body top, and the shaft of described driven by motor agitating device rotates；Described agitating device gos deep in reaction kettle body, is equipped with stirrer paddle in shaft end and centre position；Described stirrer paddle is pusher blade and SANYE swept-back blade；Described reaction kettle body top arranges condensing unit。
Described pusher blade and SANYE swept-back blade are equidistantly spaced apart, it is preferable that pusher blade is two groups, and SANYE swept-back blade is two groups。
Described diameter of propeller blade is 1/2nd of reaction kettle body diameter, and namely each blade tips distance reaction kettle body inwall is 1/4th of reaction kettle body diameter。
Described condensing unit is water circulation condensation device。During the polymerization of MBS emulsion, the monomer in reactor is volatile, affect on the one hand polymerization efficiency and quality, causes reacting kettle inner pressure to increase on the one hand, the water circulation condensation device of increase, it is to avoid the problem generation of monomer volatilization generation。
Described charging aperture is arranged on reaction kettle body top；Discharging opening is arranged on bottom reaction kettle body；It is provided with valve between bottom discharging opening and reaction kettle body。
It is provided with U-shaped chuck outside described reaction kettle body, in chuck, is provided with attemperating unit。
Pusher agitating device, working speed is higher, for axially flowing stirring, produces bigger circulating load, and power of agitator is little, it is adaptable to stirring low-viscosity (mobile) liquid, emulsion and the solid particle content suspension lower than 10%。Push-paddle impeller structure is simple, easily manufactured。
The front shear force of SANYE swept-back agitating device is bigger, it is sufficient to make monomer material be separated into thin and can be suspended in liquid phase uniformly, it is simple to be polymerized and agglomeration will not pile up in bulk；Stirring liquid stream cycle characteristics is good, and liquid can be made to produce axially and radially to move simultaneously；So that liquid carries out circulation fully and eliminates the inhomogeneities of temperature, heat-transfer effect is good, and output is big；In still, liquid phase circulation is per minute good up to 5～10 mass transfer effects, can make reaction uniformity in still；Adapt to the change of proportion in converging operationJu Hecaozuo process；The paddle of several layers of other pattern can be replaced with one layer of stirrer paddle, make to simplify the structure easy to maintenance。
The present invention is directed to the feature during polymerization of MBS emulsion, abandon traditional batch formula agitator, gate stirrer, adopt NEW TYPE OF COMPOSITE whipped form, namely agitating device adopts pusher blade and SANYE swept-back blade simultaneously, fully utilize the advantage of two kinds of blades, both change the problem that mixing is uneven, polymerization efficiency is low existed in tradition alr mode, and make again reaction stability significantly improve。
The present invention is had the beneficial effect that
The invention solves the dispersion of MBS emulsion polymerization device and monomer volatilization problems, improve the mixing homogeneity of reaction, stability and polyreaction efficiency, simple in construction, be beneficial to and realize industrialization。
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
In figure: 1, reaction kettle body；2 charging apertures；3, motor；4, condensing unit；5, chuck；6, attemperating unit；7, valve；8, discharging opening；9, shaft；10, SANYE swept-back blade；11, pusher blade。
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
As it is shown in figure 1, described MBS emulsion polymerization still, including reaction kettle body 1, charging aperture 2 and discharging opening 8, being provided with motor 3 at reaction kettle body 1 top, described motor 3 drives the shaft 9 of agitating device to rotate；Described agitating device gos deep into, in reaction kettle body 1, being equipped with stirrer paddle in shaft 9 end and centre position；Described stirrer paddle is pusher blade 11 and SANYE swept-back blade 10；Described reaction kettle body 1 top arranges condensing unit 4。
Described pusher blade 11 and SANYE swept-back blade 10 are spaced apart, and pusher blade 11 is two groups, and SANYE swept-back blade 10 is two groups。
Described diameter of propeller blade is 1/2nd of reaction kettle body 1 diameter, and namely end distance reaction kettle body 1 inwall of each blade is 1/4th of reaction kettle body 1 diameter。
Described condensing unit 4 is water circulation condensation device 4。
Described charging aperture 2 is arranged on reaction kettle body 1 top；Discharging opening 8 is arranged on bottom reaction kettle body 1；It is provided with valve 7 between bottom discharging opening 8 and reaction kettle body 1。
It is provided with chuck 5 outside described reaction kettle body 1, in chuck 5, is provided with attemperating unit 6。
During the polymerization of MBS emulsion, the monomer in reactor is volatile, affect on the one hand polymerization efficiency and quality, cause reacting kettle inner pressure to increase on the one hand, the water circulation condensation device 4 of increase, it is to avoid monomer volatilizees and causes polymerization efficiency and the low problem of yield。
The present invention is directed to the feature during polymerization of MBS emulsion, abandon traditional batch formula agitator, gate stirrer, adopt NEW TYPE OF COMPOSITE whipped form, namely agitating device adopts pusher blade 11 and SANYE swept-back blade 10 simultaneously, fully utilize the advantage of two kinds of blades, both change the problem that mixing is uneven, polymerization efficiency is low existed in tradition alr mode, and make again reaction stability significantly improve。
Claims (4)
1. a MBS emulsion polymerization still, including reaction kettle body (1), charging aperture (2) and discharging opening (8), it is characterized in that: be provided with motor (3) at reaction kettle body (1) top, described motor (3) drives the shaft (9) of agitating device to rotate；Described agitating device gos deep into, in reaction kettle body (1), being equipped with stirrer paddle in shaft (9) end and centre position；Described stirrer paddle is pusher blade (11) and SANYE swept-back blade (10)；Described reaction kettle body (1) top arranges condensing unit (4)；Pusher blade (11) and SANYE swept-back blade (10) are equidistantly spaced apart；Pusher blade (11) is two groups；SANYE swept-back blade (10) is two groups；Condensing unit (4) is water circulation condensation device (4)。
2. MBS emulsion polymerization still according to claim 1, it is characterised in that: diameter of propeller blade is 1/2nd of reaction kettle body (1) diameter。
3. MBS emulsion polymerization still according to claim 1, it is characterised in that: charging aperture (2) is arranged on reaction kettle body (1) top；Discharging opening (8) is arranged on reaction kettle body (1) bottom；It is provided with valve (7) between discharging opening (8) and reaction kettle body (1) bottom。
4. MBS emulsion polymerization still according to claim 1, it is characterised in that: reaction kettle body (1) outside is provided with U-shaped chuck (5), is provided with attemperating unit (6) in chuck (5)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521379.0A CN104226228B (en) | 2014-09-30 | 2014-09-30 | MBS emulsion polymerization still |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521379.0A CN104226228B (en) | 2014-09-30 | 2014-09-30 | MBS emulsion polymerization still |
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| Publication Number | Publication Date |
|---|---|
| CN104226228A CN104226228A (en) | 2014-12-24 |
| CN104226228B true CN104226228B (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410521379.0A Active CN104226228B (en) | 2014-09-30 | 2014-09-30 | MBS emulsion polymerization still |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105061684B (en) * | 2015-07-31 | 2017-08-25 | 湖州杨氏塑料助剂有限公司 | A kind of automated production equipment for producing MBS |
| CN109908851A (en) * | 2017-12-12 | 2019-06-21 | 巴斯夫新材料有限公司 | Polymer reactor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2465792Y (en) * | 2000-11-17 | 2001-12-19 | 四川大学 | Swept-back blade paddle mixing device |
| CN202105652U (en) * | 2011-04-30 | 2012-01-11 | 甘肃银光聚银化工有限公司 | Novel multi-phase stirring reactor |
| CN102358760A (en) * | 2011-07-22 | 2012-02-22 | 浙江大学 | Stirred tank reactor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8887387B2 (en) * | 2009-07-07 | 2014-11-18 | Boston Scientific Neuromodulation Corporation | Methods of manufacture of leads with a radially segmented electrode array |
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- 2014-09-30 CN CN201410521379.0A patent/CN104226228B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2465792Y (en) * | 2000-11-17 | 2001-12-19 | 四川大学 | Swept-back blade paddle mixing device |
| CN202105652U (en) * | 2011-04-30 | 2012-01-11 | 甘肃银光聚银化工有限公司 | Novel multi-phase stirring reactor |
| CN102358760A (en) * | 2011-07-22 | 2012-02-22 | 浙江大学 | Stirred tank reactor |
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| CN104226228A (en) | 2014-12-24 |
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