CN106397634A - Device and method for improving coagulation effect of isoprene rubber - Google Patents
Device and method for improving coagulation effect of isoprene rubber Download PDFInfo
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- CN106397634A CN106397634A CN201510455525.9A CN201510455525A CN106397634A CN 106397634 A CN106397634 A CN 106397634A CN 201510455525 A CN201510455525 A CN 201510455525A CN 106397634 A CN106397634 A CN 106397634A
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- Prior art keywords
- glue
- compressed air
- isoprene rubber
- feedway
- condensing field
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- 229920003049 isoprene rubber Polymers 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000000694 effects Effects 0.000 title abstract description 10
- 230000015271 coagulation Effects 0.000 title abstract 2
- 238000005345 coagulation Methods 0.000 title abstract 2
- 239000003292 glue Substances 0.000 claims abstract description 104
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims abstract description 16
- 230000003311 flocculating effect Effects 0.000 claims description 32
- 239000007921 spray Substances 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000003978 infusion fluid Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 abstract description 7
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 4
- 239000000693 micelle Substances 0.000 description 18
- 229920001971 elastomer Polymers 0.000 description 15
- 239000005060 rubber Substances 0.000 description 15
- 229910052761 rare earth metal Inorganic materials 0.000 description 11
- 150000002910 rare earth metals Chemical class 0.000 description 11
- 238000003756 stirring Methods 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 9
- 238000002156 mixing Methods 0.000 description 9
- 239000006260 foam Substances 0.000 description 8
- 238000005354 coacervation Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000007759 kiss coating Methods 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000002270 dispersing agent Substances 0.000 description 5
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010092 rubber production Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 159000000013 aluminium salts Chemical class 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920003211 cis-1,4-polyisoprene Polymers 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000001599 direct drying Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 125000003473 lipid group Chemical group 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000010074 rubber mixing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 159000000008 strontium salts Chemical class 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a device and a method for improving the coagulation effect of isoprene rubber, which comprises the following steps: the pipeline is provided with a plurality of openings and annularly wound in the circumferential direction of the inner wall of the condensation kettle, and an air inlet of the pipeline is connected with a compressed air supply device; the dual-fluid injection system comprises a dual-fluid nozzle, and a compressed air supply device and a glue solution supply device which are connected with the dual-fluid nozzle, wherein compressed air from the compressed air supply device and the glue solution from the glue solution supply device are injected into the condensation kettle through the dual-fluid nozzle.
Description
Technical field
The present invention relates to synthetic rubber field is and in particular to one kind improves isoprene rubber cohesion using compressed air
The method and device of effect, is improved by coacervation device and compressed air uses, and reduces steam consumption, extends
Isoprene rubber cohesion unit is driven the cycle.
Background technology
Isoprene rubber (cis-1,4-polyisoprene rubber) is a kind of high-cis being synthesized by isoprene
(cis- Isosorbide-5-Nitrae content is 95%～98%) rubber, its structure and performance are approximate with natural rubber, are referred to as closing
Become natural rubber, entirely entitled along Isosorbide-5-Nitrae-polyisoprene, natural rubber can be replaced to apply in high-capacity tyre and
Off-the-highway tire, it may also be used for medicine and other fields.
Industrialized isoprene rubber technology is solution polymerization process at present, in solution polymerization process preparation rubber process
In the glue of polymerization workshop section synthesis in addition to the rubber containing about 10, also contain substantial amounts of solvent and not anti-
The monomer answered, catalyst of remaining etc., rubber are separated from glue, have multiple postprocessing working procedures
Can select, such as wet type coacervation, direct drying method, phase separation method etc..In theory, latter two side
Method is more reasonable, and its observable index coacervation is much lower, very attractive, but higher to equipment requirements, at present greatly
How under test, widely used wet type condensation technique therefore in commercial production.
When glue cohesion is carried out using wet type condensation technique, because solvent gasification rate is slow, gelatin viscosity
Larger, particularly isoprene rubber, not only glue is tacky, even the micelle having condensed, strong
Under stirring, as long as mutual collision may be bonded together, long-time driving, micelle bonding in bulk, blocking
Pipeline, condensing field kiss-coating, stifled glue, seizes, carries kettle on the back it has to open kettle gel resin, and it is passive to produce, Er Qieyou
It is bonded to bulk in condensing the blob of viscose quickly, within the same time of staying, solvent within glue and not
The monomer of reaction can not depart from completely, and blob of viscose oil content is high, and this not only can reduce solvent and using of monomer is imitated
Rate, and can lead to skid on rubber mixing machine in last handling process, it is difficult blanking in banbury, manufactured goods are easily raw
Become bubble etc..The selection of the design of cohesion equipment, cohesion process optimization and interleaving agent be prevent micelle bonding,
Improve flocculating result, the effective means reducing steam consumption, extending the driving cycle.
Patent CN201110051930.6 is passed through to change glue feeding manner and glue form, using split group
Box-like stirring and collocation glue and steam jet position, rationally improve stirring power distribution in condensing field, improve
Flocculating result.
Patent CN201120054983.9 prepares kettle, glue preheater, cohesion by setting up just cohesion glue
Kettle Internal baffle is distributed, installs and set up steam port etc. on micelle waterpipe between thimble and condensing field in glue solution nozzle
Method obtain comparatively ideal isoprene rubber cohesion form, reduce steam loss, improve material flow pattern in condensing field,
Solve sizing material blockage problem it is ensured that glue condenses continuous and steady operation.
Patent CN201110051895.8 provides a kind of addition interleaving agent and improves isoprene rubber flocculating result
Method, to prevent from kiss-coating, stifled glue in condensing field in coacervation process, seize, carry kettle phenomenon on the back, extends solidifying
Poly- kettle is driven the cycle, reduces the oil content of cohesion gained isoprene rubber, reduces steam consumption, is conducive to follow-up
Extrusion drying process, reduce isoprene rubber production cost.
Foreign patent is many to improve flocculating result by way of adding dispersant to condensing field, prevents micelle from gluing
Knot, patent US3268501 and US3042637 add in condensing field in coacervation process alkaline metal salt,
Alkyl sulfate, the method for alkylbenzenesulfonate effectively improve the bonding in bulk phenomenon of micelle.
US3190868 makes the micelle in condensing field become by adding water-soluble polymer dispersant in condensed system
High degree of dispersion state, the nitrile that these polymeric dispersants generally include single or multiple carboxyls or can form carboxyl
Class, amino and lipid group, these polymeric dispersants can add condensing field in the way of free acid,
Can be added in the way of the ammonium salt of polymeric dispersant, barium salt, strontium salt, aluminium salt, cobalt salt, iron salt, nickel salt
Enter condensing field.
Above-mentioned patent is from largely improving isoprene rubber flocculating result, reduce steam consumption, prolongation
The driving cycle, but still suffer from condensing that unit steam consumption quantity is high, system foam is many, glue is in condensing field liquid level
Bond the problem sticking together.
Content of the invention
Present invention aim at, a kind of device and method improving isoprene rubber flocculating result is provided.The present invention
Aim to overcome that problem of the prior art, the device and method improving isoprene rubber flocculating result is provided,
To prevent micelle in coacervation process from sticking together in condensing field liquid level bonding, strengthen condensing field mixing effect, improve micelle
Form, reduces coacervated system surface tension, thus reducing system foam volume, reducing cohesion gained isoprene rubber
Oil content, reduce steam consumption, extend condensing field drive the cycle, reduce isoprene rubber production cost.
The invention provides improving the device of isoprene rubber flocculating result, including：
One pipeline being provided with multiple perforates, is annularly set around the circumferential direction of condensing field kettle inwall, described pipe
The air inlet of line is connected with compressed air feedway；
A pair of infusion fluid systems, the compression be connected including a two-fluid spray nozzle and with described two-fluid spray nozzle
Air feeder and glue feedway, from the compressed air of described compressed air feedway be derived from
The glue of glue feedway passes through described double flowing nozzle and injects in described condensing field.
The above-mentioned device improving isoprene rubber flocculating result, described two-fluid spray nozzle is double-layered cylinder inside and outside
Structure, outer layer is air chamber, and described air chamber is provided with a compressed air inlet and a compressed air outlet, described pressure
Contracting air intake is connected with described compressed air feedway, and internal layer is glue room, and described glue room is provided with one
Glue entrance and glue outlet, described glue entrance is connected with glue feedway, and described glue outlet will
Described air chamber is connected with described glue room, and described compressed air outlet is exported in same axis direction with glue
On.
The above-mentioned device improving isoprene rubber flocculating result, the direction of described perforate is put down with described poly- kettle kettle wall
OK.
The above-mentioned device improving isoprene rubber flocculating result, described the number of openings is 3～6, and described many
Individual perforate is uniformly distributed at equal intervals.
The above-mentioned device improving isoprene rubber flocculating result, injects compressed air pressure and the note of described pipeline
The compressed air pressure entering described two-fluid spray nozzle is 0.3MPa～0.8MPa.
The above-mentioned device improving isoprene rubber flocculating result, described condensing field kettle inwall be provided with multiple for solid
The fixing point of fixed described pipeline.
The above-mentioned device improving isoprene rubber flocculating result, described glue mouth goes out less than described compressed air
Mouthful.
The above-mentioned device improving isoprene rubber flocculating result, a diameter of 5mm of described glue mouth.
Present invention also offers a kind of method improving isoprene rubber flocculating result, it is applied to the claims
The device improving isoprene rubber flocculating result any one of 1-8 is it is characterised in that include following walking
Suddenly：
There is the pipeline of multiple perforates in the circumferential direction winding annular in shape of condensing field kettle inwall, and described pipe
The air inlet of line is connected with compressed air feedway；
One two-fluid spray nozzle is set, and described double flowing nozzle connects described compressed air feedway and a glue simultaneously
Liquid supplying device, by the compressed air from described compressed air feedway with from glue feedway
Glue passes through described double flowing nozzle and injects in described condensing field.
A kind of method of above-mentioned improvement isoprene rubber flocculating result is it is characterised in that inject described pipeline
The compressed air pressure of compressed air pressure and the described two-fluid spray nozzle of injection is 0.3MPa～0.8MPa,
Described glue speed in injection condensing field kettle is 1m3/h.
The present invention compared with prior art has following significant progress and positive effect：
1. setting up circle compressed-air line with holes along first, second condensing field kettle wall circumference, using pressure
Air stripping in coacervated system hot water for the contracting air, expansion and peptizaiton improve the axle in condensing field for the coacervated system
To flow effect, eliminate stirring dead angle, prevent micelle from sticking together in condensing field liquid level bonding, extend cohesion unit and open
The car cycle.
2. glue solution nozzle adopts two-fluid spray nozzle, using compressed air replace steam glue is carried out cutting and
Dispersion, improves micelle state, reduces steam consumption, reduces product cost.
3. reduce isolation agent, reduce system surface tension, decrease system foam volume, reduce
Interleaving agent cost, it is to avoid the risk of foam blocking pipeline and condensing plant.
4. the gas effect of compressed air can improve condensing field solvent removal speed, reduces micelle oil content,
Reduce solvent consumption.
5. coacervation process steam consumption reduces, and discharge of wastewater reduces.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as to the present invention's
Limit.
Brief description
Fig. 1 is the device front view of one embodiment of the invention；
Fig. 2 is the device top view of one embodiment of the invention；
Fig. 3 is the structural representation of double flowing nozzle of the present invention.
Reference：
Condensing field 1
Handle money 2
Perforate 21
Fixing point 22
Double flowing nozzle 3
Air chamber 31
Compressed air inlet 311
Compressed air outlet 312
Glue room 32
Glue inlet port 321
Glue outlet 322
Compressed air feeding line 4
Specific embodiment
Below in conjunction with the accompanying drawings the structural principle and operation principle of the present invention is described in detail：
The present invention will be further described by the following examples, cited embodiment, is in scale examination
The example that in production, practical operation is verified, is therefore easy to be grasped by those skilled in the art.As
Make some changes on the basis of the present invention, it is substantially not out the scope of the present invention, and described example is only
The present invention is explained, restriction is not made to the present invention.
As shown in figure 1, Fig. 1 is the front view of device, Fig. 2 is the top view of device, and the present invention provides
Improve the device of isoprene rubber flocculating result, including：
One pipeline 2 being provided with multiple perforates, is annularly set around the circumferential direction of the kettle inwall of condensing field 1,
The air inlet of pipeline 2 is connected with compressed air feedway (in figure is not drawn into)；In detail it, the first cohesion
Kettle connects the second condensing field, is setting up circle pipe with holes along the kettle wall circumference of the first condensing field, the second condensing field
Line, on pipeline 2, the number of perforate is 3-6, and perforate 21 is uniformly distributed on circular compressed-air line,
The direction of perforate 21 is parallel with condensing field kettle wall, and the compressed air from compressed air feedway passes through pressure
Contracting air feed pipeline 4 inject this pipeline 2, injection pipeline 2 in compressed air pressure be 0.3MPa～
0.8MPa, using gas in coacervated system hot water for the nitrogen in compressed air, expansion and peptizaiton
To improve the axial flow effect in condensing field for the coacervated system, eliminate stirring dead angle, prevent micelle in condensing field
1 liquid level bonding sticks together.The scheme of installation of compressed-air line is as shown in figure 1, be the master of this device in Fig. 1
View, Fig. 2 is the top view of this device, is provided with multiple pipeline fixing points 22 in condensing field 1 kettle wall, can
Compressed air is handled money in the circumferentially fixed circumference in condensing field 1.
A pair of infusion fluid systems, the compressed air be connected including a two-fluid spray nozzle and with two-fluid spray nozzle
Feedway and glue feedway (in figure is not drawn into), from the compressed air of compressed air feedway
Injected in condensing field 1 by double flowing nozzle 3 with the glue from glue feedway.In detail it, by glue
With compressed air, condensing field 1, the compressed air in injection condensing field 1 are injected simultaneously into by this double flowing nozzle 3
Pipe pressure is 0.3MPa～0.8MPa, and the described glue speed in injection condensing field 1 kettle is 1m3/ h, such as schemes
Shown in 3, this double flowing nozzle 3 is double-layered cylinder structure inside and outside, and outer layer is air chamber 31, described air chamber 31
It is provided with a compressed air inlet 311 and compressed air outlet 312, air chamber 31 passes through a compressed air inlet
311 are connected with compressed air feedway, and the compressed air outlet slit of compressed air 312 enters in condensing field 1,
Internal layer is glue room 32, and described glue room 32 one end is glue inlet port 321, and the other end exports for glue
322, the glue inlet port 321 of glue room 32 is connected with glue feedway, air chamber 31 and glue room 32
322 connections are exported by a glue, glue outlet 322 is in same axial direction side with compressed air outlet 312
Upwards, and described glue exit radius 322 are less than compressed air outlet radius 312, glue outlet 322
A diameter of 5mm, the glue that the compressed air that compressed air outlet 312 sprays will spray through glue outlet 322
Cut and disperseed.
Present invention also offers a kind of be applied to the above-mentioned device improving isoprene rubber flocculating result, including as follows
Step：
There is the pipeline 2 of multiple perforates, pipeline in the circumferential direction winding annular in shape of condensing field 1 kettle inwall
2 air inlet is connected with compressed air feedway；
One two-fluid spray nozzle is set, and double flowing nozzle 3 connects compressed air feedway and glue supply simultaneously
Device, the compressed air from compressed air feedway and the glue from glue feedway is passed through double
In flow nozzle injection condensing field 1.Inject compressed air pressure and the injection two-fluid spray nozzle 3 of described pipeline
Compressed air pressure be 0.3MPa～0.8MPa, the glue speed in injection condensing field 1 kettle is 1m3/h.
Glue and gas are passed through double flowing nozzle 3 injecting compressed air pipeline, using compressed air in agglomerate
It is that air stripping in hot water, expansion and peptizaiton improve the axial flow effect in condensing field 1 for the coacervated system,
Eliminate stirring dead angle, prevent micelle from sticking together in condensing field 1 liquid level bonding.
For further describing using and utilizing effect produced by this device of this device, especially exemplified by being implemented as follows
Example.
Embodiment 1
Rare-earth isoprene rubber hexane solution used is molten with hexane for isoprene under rare earth catalyst effect
Agent carries out polyreaction acquisition, its glue content be 12%, rare-earth isoprene rubber Isosorbide-5-Nitrae-cis-content 96%, point
It is 85 that son amount is distributed as 2.5, Mooney viscosity.Concrete operation step is as follows：
Rare-earth isoprene rubber enters in condensing field 1 by two-fluid spray nozzle spray 3, the first condensing field, the second cohesion
Kettle kettle inwall circumference is all provided with circle compressed-air line with holes, and each pipeline sets 3 perforates, opens for 3
Hole is uniformly distributed on circular compressed-air line, and compressed air outlet is parallel with condensing field 1 kettle wall, tool
Body operating condition is：By the compressed air from compressed air feedway and dilute from glue feedway
Native isoprene rubber is injected in condensing field 1 by double flowing nozzle, injects compression toward compressed-air line with holes simultaneously
Air, the glue speed of entering injected by double flowing nozzle in condensing field 1 is 1m3/h, toward double flowing nozzle and with holes
In pipeline, the pressure of the compressed air of injection is 0.6MPa, and isolation agent should be maintained at 0.03kg/t glue
Liquid, 83 DEG C of the temperature of the first condensing field, 280 revs/min of mixing speed, 93 DEG C of the temperature of the second condensing field,
280 revs/min of mixing speed, cohesion 24h does not seize, blocks up glue, carries kettle phenomenon on the back, in process of the test
Condensing field 1 liquid level does not have micelle to tie the phenomenon that sticks together, and does not have foam, open condensing field 1 after off-test in kettle
Observe, stirring does not have kiss-coating phenomenon, test result shows that buffings granularity is 5～10mm, rubber oil content
For 0.29%, Mooney viscosity 99.6, water vapour consumes 3.5t/t rubber, that is, often produces 1 ton of rubber and need
Consume 3.5 tons of vapor.
Embodiment 2
, with embodiment 1, concrete operation step is as follows for glue used：
Rare-earth isoprene rubber enters in condensing field 1 by two-fluid spray nozzle spray 3, the first condensing field, the first cohesion
Kettle inwall does not set compressed-air line 2 with holes, and concrete operations condition is：Dress will be supplied from compressed air
The compressed air put and the rare-earth isoprene rubber being derived from glue feedway pass through double flowing nozzle 3 injection cohesion
In kettle 1, entering glue speed by the rare-earth isoprene rubber that double flowing nozzle injects in condensing field 1 is 1m3/ h, past
In double flowing nozzle 3, the pressure of the compressed air of injection is 0.6MPa, and isolation agent should be maintained at 0.05kg/t
Glue, 83 DEG C of the temperature of the first condensing field, 280 revs/min of mixing speed, 93 DEG C of the temperature of the second condensing field,
280 revs/min of mixing speed, cohesion 24h does not seize, blocks up glue, carries kettle phenomenon on the back, solidifying after cohesion 4h
Poly- kettle 1 liquid level has micelle to tie the phenomenon that sticks together, and in kettle, foam is few, opens condensing field 1 and observes, stir after off-test
Mix and there is no kiss-coating phenomenon, test result shows that buffings granularity is 10～15mm, and rubber oil content is 0.49%,
Mooney viscosity 99.6, water vapour consumes 3.4t/t rubber.
Embodiment 3
, with embodiment 1, concrete operation step is as follows for glue used：
It is all provided with circle compressed-air line with holes 2 in the first condensing field, the second condensing field kettle wall circumference, each
6 compressed air outlets are set on pipeline 2,6 perforates are uniformly distributed on circular compressed-air line 2,
Compressed air outlet is parallel with condensing field kettle wall, and concrete operations condition is：Will be from compressed air feedway
Compressed air and from glue feedway rare-earth isoprene rubber by double flowing nozzle 3 inject condensing field
Interior, simultaneously toward compressed-air line 2 injecting compressed air with holes, injected in condensing field by double flowing nozzle
It is 1m that rare-earth isoprene rubber enters glue speed3/ h, toward in double flowing nozzle 3 and pipeline with holes 2, the compression of injection is empty
The pressure of gas is 0.6MPa, and isolation agent should be maintained at 0.05kg/t glue, in the first condensing field
83 DEG C of temperature, 280 revs/min of mixing speed, 93 DEG C of the temperature in the second condensing field, 280 turns of mixing speed
/ point, cohesion 24h does not seize, blocks up glue, carries kettle phenomenon on the back, and in process of the test, condensing field liquid level does not have
Micelle ties the phenomenon that sticks together, and in kettle, foam is few, opens condensing field and observes, stirring does not have kiss-coating phenomenon after off-test,
Test result shows that buffings granularity is 5～10mm, and rubber oil content is 0.49%, Mooney viscosity 99.6,
Water vapour consumes 4.7t/t rubber.
Embodiment 4
, with embodiment 1, concrete operation step is as follows for glue used：
First condensing field, the second condensing field inwall circumference do not set compressed-air line, are not passed through in glue solution nozzle
Compressed air and be passed through steam, concrete operations condition is：By steam and different from the rare earth of glue feedway
Penta rubber injects in condensing field by double flowing nozzle, and the steam pressure in injection double flowing nozzle steams for 0.6MPa
Vapour, entering glue speed by the rare-earth isoprene rubber that double flowing nozzle injects in condensing field is 1m3/ h, interleaving agent is used
Amount should be maintained at 0.08kg/t glue, 83 DEG C of the temperature in the first condensing field, 280 revs/min of mixing speed,
Second 93 DEG C of temperature in the kettle of cohesion, 280 revs/min of mixing speed, cohesion 24h does not seize, stifled glue,
Carry kettle phenomenon on the back, after cohesion 2h, condensing field liquid level has micelle to tie the phenomenon that sticks together, and has more foam in condensing field, needs
Eliminated with defoamer, open condensing field after off-test and observe, stirring does not have kiss-coating phenomenon, test result table
Gelatin bits granularity is 10～20mm, and rubber oil content is 0.55%, Mooney viscosity 99.6, water vapour consumption
4.5t/t rubber.
Certainly, the present invention also can have other various embodiments, in the feelings spiritual and its substantive without departing substantially from the present invention
Under condition, those of ordinary skill in the art work as and can make various corresponding changes and deformation according to the present invention, but
These change accordingly and deform the protection domain that all should belong to appended claims of the invention.
Claims (10)
1. a kind of device improving isoprene rubber flocculating result is it is characterised in that include：
One pipeline being provided with multiple perforates, is annularly set around the circumferential direction of condensing field kettle inwall, described pipe
The air inlet of line is connected with compressed air feedway；
A pair of infusion fluid systems, the compression be connected including a two-fluid spray nozzle and with described two-fluid spray nozzle
Air feeder and glue feedway, from the compressed air of described compressed air feedway be derived from
The glue of glue feedway passes through described double flowing nozzle and injects in described condensing field.
2. the device improving isoprene rubber flocculating result as claimed in claim 1 is it is characterised in that described
Two-fluid spray nozzle is double-layered cylinder structure inside and outside, and outer layer is air chamber, and described air chamber is provided with a compressed air and enters
Mouth and a compressed air outlet, described compressed air inlet is connected with described compressed air feedway, internal layer
For glue room, described glue room is provided with a glue entrance and glue outlet, described glue entrance and glue confession
To device connection, described air chamber is connected by described glue outlet with described glue room, described compressed air outlet
Export on same axis direction with glue.
3. the device improving isoprene rubber flocculating result as claimed in claim 1 is it is characterised in that described
The direction of perforate is parallel with described poly- kettle kettle wall.
4. the device improving isoprene rubber flocculating result as claimed in claim 1 is it is characterised in that described
The number of openings is 3～6, and the plurality of perforate is uniformly distributed at equal intervals.
5. the device improving isoprene rubber flocculating result as claimed in claim 1 is it is characterised in that inject
The compressed air pressure of the compressed air pressure of described pipeline and the described two-fluid spray nozzle of injection is
0.3MPa～0.8MPa.
6. the device improving isoprene rubber flocculating result as claimed in claim 1 is it is characterised in that described
Condensing field kettle inwall is provided with multiple fixing points for fixing described pipeline.
7. the device improving isoprene rubber flocculating result as claimed in claim 1 is it is characterised in that described
Glue mouth is less than described compressed air outlet.
8. the device improving isoprene rubber flocculating result as claimed in claim 7 is it is characterised in that institute
State a diameter of 5mm of glue mouth.
9. a kind of method improving isoprene rubber flocculating result, is applied to any one of the claims 1-8
The described device improving isoprene rubber flocculating result is it is characterised in that comprise the steps：
There is the pipeline of multiple perforates in the circumferential direction winding annular in shape of condensing field kettle inwall, and described pipe
The air inlet of line is connected with compressed air feedway；
One two-fluid spray nozzle is set, and described double flowing nozzle connects described compressed air feedway and a glue simultaneously
Liquid supplying device, by the compressed air from described compressed air feedway with from glue feedway
Glue passes through described double flowing nozzle and injects in described condensing field.
10. as claimed in claim 9 a kind of method improving isoprene rubber flocculating result it is characterised in that
The compressed air pressure injecting described pipeline and the compressed air pressure injecting described two-fluid spray nozzle are
0.3MPa～0.8MPa, the described glue speed in injection condensing field kettle is 1m3/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510455525.9A CN106397634B (en) | 2015-07-29 | 2015-07-29 | Device and method for improving coagulation effect of isoprene rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510455525.9A CN106397634B (en) | 2015-07-29 | 2015-07-29 | Device and method for improving coagulation effect of isoprene rubber |
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| Publication Number | Publication Date |
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| CN106397634A true CN106397634A (en) | 2017-02-15 |
| CN106397634B CN106397634B (en) | 2018-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510455525.9A Active CN106397634B (en) | 2015-07-29 | 2015-07-29 | Device and method for improving coagulation effect of isoprene rubber |
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| Country | Link |
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| CN (1) | CN106397634B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479515A (en) * | 2019-09-16 | 2019-11-22 | 山东齐鲁石化工程有限公司 | Combined type glue spraying mouth |
| CN111013200A (en) * | 2019-12-11 | 2020-04-17 | 上海仪电科学仪器股份有限公司 | Injection pump bubble removal device and method for instrument analysis |
| CN113399135A (en) * | 2021-06-22 | 2021-09-17 | 中国科学院过程工程研究所 | Slice type nozzle for synthetic rubber condensation and devolatilization and use method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3268501A (en) * | 1960-12-01 | 1966-08-23 | Phillips Petroleum Co | Recovery of polymers from solution |
| CN102451800A (en) * | 2010-10-20 | 2012-05-16 | 中国石油化工股份有限公司 | Nozzle |
| CN102181002B (en) * | 2011-03-04 | 2012-11-14 | 中国石油天然气股份有限公司吉林石化分公司 | Wet coagulation method for rare-earth isoprene rubber |
| CN201990621U (en) * | 2011-03-04 | 2011-09-28 | 中国石油天然气股份有限公司吉林石化分公司 | Device for synthetizing isoprene rubber through wet coagulation process |
-
2015
- 2015-07-29 CN CN201510455525.9A patent/CN106397634B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479515A (en) * | 2019-09-16 | 2019-11-22 | 山东齐鲁石化工程有限公司 | Combined type glue spraying mouth |
| CN111013200A (en) * | 2019-12-11 | 2020-04-17 | 上海仪电科学仪器股份有限公司 | Injection pump bubble removal device and method for instrument analysis |
| CN113399135A (en) * | 2021-06-22 | 2021-09-17 | 中国科学院过程工程研究所 | Slice type nozzle for synthetic rubber condensation and devolatilization and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106397634B (en) | 2018-06-01 |
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