CN201990621U - Device for synthetizing isoprene rubber through wet coagulation process - Google Patents
Device for synthetizing isoprene rubber through wet coagulation process Download PDFInfo
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- CN201990621U CN201990621U CN 201120054983 CN201120054983U CN201990621U CN 201990621 U CN201990621 U CN 201990621U CN 201120054983 CN201120054983 CN 201120054983 CN 201120054983 U CN201120054983 U CN 201120054983U CN 201990621 U CN201990621 U CN 201990621U
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- glue
- coagulating
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- rubber
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Abstract
A device for synthetizing isoprene rubber through a wet coagulation process comprises a first coagulating kettle, a second coagulating kettle, a rubber liquid metering pump, a rubber cement static mixer, a rubber liquid nozzle, a coagulating kettle steam pipeline, a circulating hot water pipeline, a first coagulating kettle gas phase condenser, a second coagulating kettle gas phase condenser, a rubber particle cement pipeline between the coagulating kettles and a second coagulating kettle rubber particle cement pump. The device is characterized in that an initial coagulating rubber liquid preparation kettle is additionally arranged, a rubber liquid preheating device is additionally arranged between the rubber liquid metering pump and the rubber cement static mixer, a steam port is additionally arranged on the rubber particle pipeline between the coagulating kettles, an ejecting pin is arranged in the first coagulating kettle rubber liquid nozzle, and baffle plates in the first coagulating kettle and the second coagulating kettle are in spiral structures. By utilizing the device, energy consumption is decreased by more than 20% so that blockage is prevented.
Description
Technical field
The utility model relates to a kind of by isoprene synthetic polyisoprene rubber wet method coacervation device under rare-earth catalysis system, relates to a kind of synthetic polyisoprene rubber wet method coacervation device specifically.
Background technology
Polyisoprene rubber is by a kind of high-cis of isoprene synthetic (suitable-1,4 content are 95%～98%) rubber, its structure and performance and natural rubber are approximate, be called as natural synthetic rubber, full name is along 1, the 4-polyisoprene rubber can replace natural rubber to be applied in truck tyre and off-the-highway tire, also can be used for medicine and other fields.
The high-cis polyisoprene rubber generally prepares with solution polymerization process, cohesion process is the important step of the synthetic polyisoprene rubber of solution method, general method isolating polymer and solvent with the elutriation cohesion, be about to polyisoprene rubber solution and spray into the cohesion still, with solvent removal in the glue, obtain the polyisoprene rubber of water content 50-60% with water vapour.
In the condensation technique of existing solution polymerized rubber, mainly cis-1,4-polybutadiene rubber is furtherd investigate, and obtained good effect, condensation technique to polyisoprene rubber has reference preferably, but discover and adopt existing cis-1,4-polybutadiene rubber condensation technique can not satisfy the cohesion requirement of rare-earth isoprene rubber fully, dispersion effect is relatively poor in agglomeration process, mainly embodies a concentrated expression of blow up a balloon difficult fragmentation and the problems such as glue sandwich phenomenon, the high difficult chopping of rubber strength, micelle conglomeration, obstruction and sizing material seize of being prone to.Have higher tensile strength and tear strength mainly due to rare-earth isoprene rubber than cis-1,4-polybutadiene rubber, mooney viscosity (70-95) is far above the mooney viscosity (40-50) of cis-1,4-polybutadiene rubber, and rare-earth isoprene rubber solution kinetic viscosity is higher than cis-1,4-polybutadiene rubber solution kinetic viscosity, belongs to high sticking system.
The utility model content
The utility model purpose be to solve high because of rare-earth isoprene rubber intensity and glue wet method agglomeration process that gelatin viscosity causes greatly in the difficult dispersion, glue the solvent difficulty remove, problems such as micelle conglomeration and obstruction, a kind of synthetic polyisoprene rubber wet method coacervation device is provided.
A kind of rare-earth isoprene rubber wet method coacervation device, comprise micelle waterpipe between the first cohesion still, the second cohesion still, glue volume pump, glue static mixer, glue nozzle, cohesion still steam pipeline, circulating hot water pipeline, the first cohesion still gas phase condenser, the second cohesion still gas phase condenser, cohesion still, the second cohesion still micelle water pump, it is characterized in that: set up cohesion glue preparation still just; Between glue volume pump and glue static mixer, set up the glue preheater; Set up steam port on the micelle waterpipe between the cohesion still; Establish thimble in the first cohesion still glue nozzle; Baffle plate structure in the shape of a spiral in the first cohesion still and the second cohesion still.
The first cohesion glue preparation still that the utility model increases is used for the rare-earth isoprene rubber glue being diluted to 5% hexane solution, is condensed into even-grained micelle (particle diameter 15-25mm) by glue volume pump, glue preheater, glue static mixer and glue nozzle again before glue continous-stable cohesion beginning;
The utility model is set up the glue preheater between glue volume pump and glue static mixer, for glue is preheating to 105-110 ℃ earlier, spray in the cohesion still again with behind the cohesion circulating hot water thorough mixing;
Baffle plate is that spiral distributes in the cohesion still of the present utility model, and barrier width is 0.08D (D is cohesion still diameter), with still wall gap be 0.02D;
Establish thimble in the first cohesion still glue nozzle of the present utility model, be used to dredge nozzle and guarantee the operation of glue cohesion continous-stable;
The utility model is set up 1-3 steam port on the micelle waterpipe between the first cohesion still and the second cohesion still, in agglomeration process small amount of steam is fed micelle waterpipe between the cohesion still continuously, and it is inhomogeneous to improve the micelle discharging, prevents that micelle from stopping up in pipeline.
Rare-earth isoprene rubber wet method coacervation device of the present utility model compared with prior art has obvious improvement and positively effect: 1. by setting up cohesion glue preparation still just, before the cohesion of glue continous-stable, make sizeable micelle in advance, as the cohesion seed, utilize the big characteristics of rare-earth isoprene rubber intensity high rigidity, when cohesion, glue is cut, play the effect that disperses glue, guarantee flocculating result preferably; 2. the glue preheater can make glue spray into the first cohesion still and promptly obtain bigger solvent vaporization impellent, has better underpressure distillation effect, remove solvent rapidly, and the expansion blasting effect of solvent in glue can make glue that better dispersion effect is arranged, obtain comparatively ideal cohesion form, the first cohesion still steam loss can reduce more than 20%; 3. condense the still Internal baffle and adopt spiral to distribute, can improve material flow pattern in the cohesion still, make micelle be in full dispersion state; 4. in the glue nozzle, set up steam port on the micelle waterpipe between installation thimble and cohesion still and can solve the sizing material blockage problem, guarantee the operation of glue cohesion continous-stable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the utility model cohesion still baffle plate spiral distribution schematic diagram.
Among the figure: 1 first cohesion still, 2 second cohesion stills, 3 just condense glue preparation still, 4 glue volume pumps, 5 glue preheaters, 6 glue static mixers, 101 glue nozzles, 102 cohesion still steam pipelines, 103 circulating hot water pipelines, 104 first cohesion still gas phase condensers, 105 second cohesion still gas phase condensers, micelle waterpipe and steam-pipe thereof between 106 cohesion stills, 107 second cohesion still micelle water pumps.
Embodiment
As depicted in figs. 1 and 2, a kind of rare-earth isoprene rubber wet method coacervation device, comprise between the first cohesion still 1, the second cohesion still 2, glue volume pump 4, glue static mixer 6, glue nozzle 101, cohesion still steam pipeline 102, circulating hot water pipeline 103, the first cohesion still gas phase condenser 104, the second cohesion still gas phase condenser 105, cohesion still micelle waterpipe and steam-pipe 106 thereof, the second cohesion still micelle water pump 107, it is characterized in that: set up cohesion glue preparation still 3 just; Between glue volume pump 4 and glue static mixer 6, set up glue preheater 5; Set up steam port on the micelle waterpipe 106 between the cohesion still; Establish thimble in the first cohesion still, the 1 glue nozzle; Baffle plate structure in the shape of a spiral in the first cohesion still 1 and the second cohesion still 2, barrier width are 0.08D (D is cohesion still diameter), and baffle plate and still wall gap are 0.02D.
Technical process is as follows:
At first, preparation is the cohesion micelle just, the glue of preparation 5% in the described glue of cohesion just preparation still, and in the utility model, make the moderate micelle of granularity (particle diameter 15-25mm), be retained in the first cohesion still; To condense glue then squeezes in the glue preheater by the glue volume pump, be heated to 105-110 ℃ rapidly, again in the glue static mixer with cohesion circulating hot water thorough mixing, spray into the first cohesion still through the glue nozzle rapidly, glue is steam at the bottom of still, the cohesion still stirs, the seed micelle, synergies such as cohesion still baffle plate are fully disperseed down, be condensed into the flower-shaped micelle of sizeable rice krispies, the micelle waterpipe enters the second cohesion still through between the cohesion still again, continue to remove the residual solvent in the micelle, reach after the controlling index and discharge the operation of following step that the second cohesion still enters by the second cohesion still micelle water pump; The cohesion gas phase reclaims through cohesion still condenser condenses.
The rare-earth isoprene rubber wet method coacervation device that provides by the utility model can obtain comparatively ideal flocculating result, it is high and gelatin viscosity big and cause that glue difficultly in the wet method agglomeration process disperses, difficultly cuts, the glue sandwich is broken, had to the difficulty that blows up a balloon to have solved rare-earth isoprene rubber intensity effectively, the easy conglomeration of micelle, obstruction and sizing material seize can obtain the flower-shaped micelle of sizeable rice krispies (particle diameter 15-25mm).
Claims (1)
1. rare-earth isoprene rubber wet method coacervation device, comprise micelle waterpipe (106), the second cohesion still micelle water pump (107) between the first cohesion still (1), the second cohesion still (2), glue volume pump (4), glue static mixer (6), glue nozzle (101), cohesion still steam pipeline (102), circulating hot water pipeline (103), the first cohesion still gas phase condenser (104), the second cohesion still gas phase condenser (105), cohesion still, it is characterized in that: set up cohesion glue preparation still (3) just; Between glue volume pump (4) and glue static mixer (6), set up glue preheater (5); Set up steam port on the micelle waterpipe (106) between the cohesion still; Establish thimble in the first cohesion still glue nozzle; Baffle plate structure in the shape of a spiral in the first cohesion still and the second cohesion still.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120054983 CN201990621U (en) | 2011-03-04 | 2011-03-04 | Device for synthetizing isoprene rubber through wet coagulation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120054983 CN201990621U (en) | 2011-03-04 | 2011-03-04 | Device for synthetizing isoprene rubber through wet coagulation process |
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| Publication Number | Publication Date |
|---|---|
| CN201990621U true CN201990621U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120054983 Expired - Lifetime CN201990621U (en) | 2011-03-04 | 2011-03-04 | Device for synthetizing isoprene rubber through wet coagulation process |
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| Country | Link |
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| CN (1) | CN201990621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106397634B (en) * | 2015-07-29 | 2018-06-01 | 中国石油天然气股份有限公司 | A kind of device and method for improving isoprene rubber flocculating result |
-
2011
- 2011-03-04 CN CN 201120054983 patent/CN201990621U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106397634B (en) * | 2015-07-29 | 2018-06-01 | 中国石油天然气股份有限公司 | A kind of device and method for improving isoprene rubber flocculating result |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA PETROLEUM +. NATURAL GAS CO., LTD. Free format text: FORMER OWNER: JILIN PETRO-CHEMICAL BRANCH, PETROCHINA COMPANY LIMITED Effective date: 20131231 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 132021 JILIN, JILIN PROVINCE TO: 100007 DONGCHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131231 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: China Petroleum & Natural Gas Co., Ltd. Address before: 132021 No. 9 Longtan Avenue, Jilin, Jilin Patentee before: Jilin Petro-Chemical Branch, PetroChina Company Limited |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |