CN202482237U - Emulsion polymerization reaction kettle - Google Patents
Emulsion polymerization reaction kettle Download PDFInfo
- Publication number
- CN202482237U CN202482237U CN2011203832321U CN201120383232U CN202482237U CN 202482237 U CN202482237 U CN 202482237U CN 2011203832321 U CN2011203832321 U CN 2011203832321U CN 201120383232 U CN201120383232 U CN 201120383232U CN 202482237 U CN202482237 U CN 202482237U
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- China
- Prior art keywords
- reaction kettle
- communicated
- emulsion polymerization
- bypass branch
- liquid storage
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Abstract
The utility model discloses an emulsion polymerization reaction kettle which can avoid splashing of feed liquid dropwisely added, prevent air from entering with feeding, and help uniformly mix the materials fast. A feed guide pipe is drawn out from the lower part of the reaction kettle and is communicated with the outlet of a feed pump and a nitrogen bypass branch pipe respectively; and the inlet of the feed pump is communicated with one end of a tee on a material storage pipe and the bypass branch pipe in sequence, and the other end of the tee is connected with a nitrogen source to form a constant pressure feed system. In the liquid dripping process, under the action of constant pressure of nitrogen, air can be prevented from entering while feeding, and the material back pressure in the kettle can be prevented from entering the feed guide pipe to cause polymerization jam; and the reaction kettle can avoid feed liquid splashing, help uniformly mix the materials in the kettle fast, the emulsion polymerization is uniform and stable, the particle size of polymer emulsion is small, and the performance is stable.
Description
Technical field
The utility model relates to a kind of emulsion polymerization still, and more particularly, the utility model relates to a kind of emulsion polymerization still that feed liquid is splashed and helped the material mixing that can prevent to drip.
Background technology
In recent years, because the worldwide energy and resource scarcity, and the promulgation of Law on Environmental Protection and safety law, the use of solvent-based adhesive is restricted, and on the contrary, emulsion adhesive more and more receives people's attention.The kind of emulsion adhesive is a lot, is very important kind like acrylic emulsion type tackiness agent, has original weathering resistance, and stability to aging is good especially, both ultraviolet aging resistances, and heat-proof aging again, and have good oxidation-resistance.And bonding strength is high, and water-tolerant has very big elongation at break.Therefore in printing and dyeing industry, be used widely.
Pigment printing binding agent generally is macromolecular compound emulsion or the solution with certain polymerization degree.Pigment printing binding agent commonly used is the oil/water emulsion of high molecular polymer mostly, is polymer beads mutually in promptly, and the foreign minister is a water, and polymer beads is dispersed among the water.Factors such as the temperature of reaction in the preparation process, reaction times, initiator amount, emulsifying agent consumption have tangible influence to letex polymerization and products thereof performance.
But in Industrial processes, production unit is also to the stable important influence of meeting to letex polymerization.In process of production, the whisking appliance twirl in the reaction kettle is when adding reaction monomers or initiator; Existing equipment all is directly to be added dropwise in the still from reaction kettle top; Because distance is higher, causes splashing of additive easily, is bonded on the reaction kettle inwall; Influence proportioning, and then influence the performance of polymeric stability and product thereof.Simultaneously, be not easy to arrive the reaction kettle bottom from the material of last adding, mix uneven, and then the performance of impact polymer emulsion, particularly when adding initiator, because the dosage of initiator seldom, its influence is particularly evident.
Summary of the invention
The purpose of the utility model is to provide a kind of production reaction kettle that is used for letex polymerization, can overcome the deficiency of original equipment, and the generation of avoiding splashing can mix additive apace.
The purpose of the utility model realizes through following technical scheme: provide a kind of letex polymerization to produce reaction kettle, comprise reaction kettle, feeding device; Said reaction kettle adopts impregnating material (stainless steel of acid-and base-resisting, enamel etc.) to prepare; Said feeding device is a kind of constant pressure type feeding device; Form by reinforced conduit, bypass branch, volume pump and storing pipe; Reinforced conduit is drawn by the lower side of reaction kettle; Connect with metering pump outlet and bypass branch respectively, the import of volume pump connects with threeway one end of bypass branch through the storing pipe, and the other end of threeway connects the N2 source of the gas.Reinforced conduit also can and extend in the top introducing still of reaction kettle at the bottom of the still always.
The beneficial effect of the utility model is that the emulsion polymerization still that provides can make when dripping feed liquid nitrogen is imported, and prevents air admission, avoids feed liquid to splash; And with still in material mixing better; Also can prevent material polymerization obstruction in reinforced conduit, letex polymerization is carried out more reposefully, the polymer emulsion particle diameter that obtains is little; Dispersive is even more, stable, and more excellent film forming properties and stability are arranged.
Description of drawings
Accompanying drawing is the structural representation of the utility model.
Among the figure: charging opening 1, storing pipe 2, volume pump 3, reinforced conduit 4, bypass branch 5, threeway 6.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Referring to accompanying drawing, the utility model comprises: reaction kettle and feeding device.Reaction kettle adopts impregnating material (stainless steel of acid-and base-resisting, enamel etc.) to prepare; Said feeding device is made up of charging opening with cover 1, storing pipe 2, volume pump 3, reinforced conduit 4, bypass branch 5 and threeway 6.Reinforced conduit 4 is drawn by the lower side of reaction kettle, connects with bypass branch 5 and volume pump 3 respectively, and volume pump 3 connects with threeway 6 one ends on the bypass branch 5 through storing pipe 2, and the other end of threeway 6 connects with the N2 source of the gas.During letex polymerization; Connect source nitrogen earlier, drive away the air in feeding device and the reaction kettle, stirring rake rotates; Add reactant arrives reaction kettle via storing pipe 2, volume pump 3 and reinforced conduit 4 bottom by charging opening 1; Under the constant voltage effect of nitrogen, additive is sent in the reaction kettle, brought air into reaction kettle when both having avoided reinforced, prevent that again material back-pressure entering conduit causes the polymerization obstruction in the still; Splash phenomena when both having avoided by top dropping material makes additive in still, stir more fully, mix more even again.
Claims (6)
1. an emulsion polymerization still is made up of reaction kettle body, whisking appliance and feeding device, it is characterized in that: feeding device is a constant pressure type charging system of being made up of liquid storage pipe, volume pump, reinforced conduit and bypass branch.
2. emulsion polymerization still according to claim 1; It is characterized in that: reinforced conduit is communicated with bypass branch and metering pump outlet respectively; The import of volume pump is communicated with threeway one end of liquid storage pipe, bypass branch in proper order, and the other end of threeway is communicated with source nitrogen.
3. emulsion polymerization still according to claim 1; It is characterized in that: a side branch and a charging opening with cover are arranged at the top of liquid storage pipe; Liquid storage pipe is communicated with threeway one end of bypass branch through side branch, after charging opening adds additive liquid storage pipe, lid is tightened.
4. emulsion polymerization still according to claim 1 is characterized in that: the constant pressure type charging system is to be communicated with reaction kettle body through reinforced conduit, and reinforced conduit is to introduce in the kettle from the lower side of reaction kettle, avoids splashing of additive.
5. emulsion polymerization still according to claim 1; It is characterized in that: the constant pressure type charging system is to be communicated with reaction kettle body through reinforced conduit; Reinforced conduit is in the top introducing kettle of reaction kettle and extends at the bottom of the still always, avoids splashing of additive.
6. emulsion polymerization still according to claim 1; It is characterized in that: feeding device is communicated with source nitrogen through the threeway of bypass branch, constitutes the constant pressure type charging system, connects nitrogen during polyreaction earlier; Drive away the air in feeding device and the reaction kettle; Both can prevent when liquid storage pipe is reinforced, to bring air into, and can stop the interior material of still to cause the polymerization obstruction in the filling tube again, also can help additive quick mixing in still because of static pressure is pressed into material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203832321U CN202482237U (en) | 2011-10-10 | 2011-10-10 | Emulsion polymerization reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203832321U CN202482237U (en) | 2011-10-10 | 2011-10-10 | Emulsion polymerization reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202482237U true CN202482237U (en) | 2012-10-10 |
Family
ID=46956675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203832321U Expired - Fee Related CN202482237U (en) | 2011-10-10 | 2011-10-10 | Emulsion polymerization reaction kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202482237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215793A (en) * | 2016-08-26 | 2016-12-14 | 国网河南省电力公司电力科学研究院 | A kind of ultrasound wave for natural esters insulating oil mixes vacuum stirring tank |
-
2011
- 2011-10-10 CN CN2011203832321U patent/CN202482237U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215793A (en) * | 2016-08-26 | 2016-12-14 | 国网河南省电力公司电力科学研究院 | A kind of ultrasound wave for natural esters insulating oil mixes vacuum stirring tank |
| CN106215793B (en) * | 2016-08-26 | 2019-01-18 | 国网河南省电力公司电力科学研究院 | A kind of ultrasonic wave mixing vacuum stirring tank for natural esters insulating oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20141010 |
|
| EXPY | Termination of patent right or utility model |