CN102179329B - Jet nozzle for condensing and devolatilizing synthetic rubber - Google Patents
Jet nozzle for condensing and devolatilizing synthetic rubber Download PDFInfo
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- CN102179329B CN102179329B CN 201110113113 CN201110113113A CN102179329B CN 102179329 B CN102179329 B CN 102179329B CN 201110113113 CN201110113113 CN 201110113113 CN 201110113113 A CN201110113113 A CN 201110113113A CN 102179329 B CN102179329 B CN 102179329B
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- nozzle
- straight section
- jet nozzle
- glue
- trunnion
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- 229920003051 synthetic elastomer Polymers 0.000 title abstract description 12
- 239000005061 synthetic rubber Substances 0.000 title abstract description 12
- 239000003292 glue Substances 0.000 claims abstract description 61
- 238000009792 diffusion process Methods 0.000 claims abstract description 28
- 238000009833 condensation Methods 0.000 claims abstract description 24
- 230000005494 condensation Effects 0.000 claims abstract description 24
- 229920001971 elastomer Polymers 0.000 claims abstract description 16
- 239000005060 rubber Substances 0.000 claims abstract description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 238000003786 synthesis reaction Methods 0.000 claims description 13
- 108010010803 Gelatin Proteins 0.000 claims description 7
- 229920000159 gelatin Polymers 0.000 claims description 7
- 239000008273 gelatin Substances 0.000 claims description 7
- 235000019322 gelatine Nutrition 0.000 claims description 7
- 235000011852 gelatine desserts Nutrition 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 19
- 230000008569 process Effects 0.000 abstract description 15
- 239000002904 solvent Substances 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 230000009471 action Effects 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract 1
- 239000000693 micelle Substances 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 5
- 238000012805 post-processing Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007701 flash-distillation Methods 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 238000010091 synthetic rubber production Methods 0.000 description 1
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Abstract
The invention discloses a jet nozzle for condensing and devolatilizing synthetic rubber, comprising a nozzle main body, wherein a straight throat pipe is formed in the nozzle main body, and an diffusion spray head is formed on the end of the straight throat pipe, pointing to a glue liquid jetting direction; at least one water inlet pipe communicated with the straight throat pipe is arranged on the side face of the nozzle main body; and the jet nozzle also comprises a glue liquid inlet joint inserted in the straight throat pipe. Glue liquid is sheared, dispersed, condensed and devolatilized in the jet nozzle before entering a condensation pot, i.e., the aftertreatment process of the synthetic rubber, performed in the condensation pot in the industry, is finished in advance in the jet nozzle. Under the strong shearing action of high-speed flow, the granularity of grains of the synthetic rubber is greatly reduced, therefore, the condensing effect of the rubber grains is improved, and the volatilizing yield of a solvent is increased. The jet nozzle has a simple structure and low equipment manufacturing cost and can continuously run, thereby having the advantages of small equipment investment and low running cost.
Description
Technical field
The present invention relates to technical field of chemical separation, particularly relate to and a kind ofly utilize the high-velocity flow convection current to spray jet nozzle to elastomeric condensation devolatilization.
Background technology
In the industrial building-up process of rubber, the solution of polymer or suspension are processed all processes that obtain finished product through series of physical, be referred to as elastomeric last handling process.Elastomeric post processing generally includes removing of monomer, catalysts and solvents (volatile component), the dehydration of polymer and drying, and the processes such as recycling of various raw materials.Wherein, because solvent is produced important in synthetic rubber technique and a large amount of auxiliary material that use as solution polymerization process, the subtractive process of solvent is one of main process that is directly connected to the synthetic rubber production cost, and its organic efficiency is very important in industrial production.
In the process units of synthetic polymer, the method that removes volatile component in polymer solution adopts classical Fu Shi condensing method usually, namely uses the volatile component in steam stripping polymer solution.Utilize nozzle ejection to be scattered in autoclave (or slot type) equipment with the interior Sheng hot water that stirs the copolymer solution of post processing.The glue thread contacts with hot water, and solvent is evaporated, and copolymer under agitation becomes the loose particles of dispersion, and solvent vapo(u)r is collected through condensation by still top effusion; Solid particle with water by still at the bottom of or the still side discharge, through with moisture from after, obtain moisture thick product, be for further processing.
The volatile component diffusion process is a most key link of devolatilization, and the factor that affects diffusion process is mainly the granularity of polymer billet, and granularity is less, more is conducive to the carrying out of diffusion process.It is less that polymer solution droplets is disperseed in the cohesion still, polymer billet shows with the hot water contact-making surface just larger, heat by oil (volatile component) water termination transmission past is just more, and volatile component is vaporized just sooner, thereby more is conducive to the carrying out of diffusion process.
Nozzle in the autoclave condensing method has only played solution has been sprayed the effect that enters in still, to the granule size of polymer billet and have no effect, and the condensation devolatilization process of glue mainly concentrates in still and carries out, because glue toughness is higher, only be difficult to its dispersion by soaking or often stirring in hot water, cause and disperse unevenly, this has just directly affected its devolatilization effect, thereby causes that the micelle flocculating result is poor and solvent recovery efficient is not high enough.Simultaneously the device processes amount is unsuitable excessive, and along with the increase for the treatment of capacity, organic efficiency will further reduce, and when needs are processed a large amount of glues, be the cohesion time of staying that increases glue, usually need the series connection of multitower or many stills, greatly increase occupation of land and cost.
Summary of the invention
The technical problem to be solved in the present invention is only just carried out the condensation devolatilization for synthetic rubber liquid in prior art in reactor, disperse the uneven problem that then affects the devolatilization effect, thereby cause the defective that the micelle flocculating result is poor and solvent recovery efficient is not high enough, a kind of jet nozzle for the synthesis of rubber condensation devolatilization is provided.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of jet nozzle for the synthesis of rubber condensation devolatilization, its characteristics be, it comprises: a nozzle body, be formed with a straight section trunnion in this nozzle body, and an end that points to the gelatin jet direction at this straight section trunnion is formed with a diffusion shower nozzle; Be provided with the oral siphon that at least one is communicated with this straight section trunnion in the side of this nozzle body; This jet nozzle comprises that also one inserts in the glue inlet attack of this straight section trunnion.
Wherein, the internal diameter of the end that is connected with this straight section trunnion of this diffusion shower nozzle is less than the internal diameter of this diffusion shower nozzle away from an end of this straight section trunnion.
Wherein, the angle of flare of this diffusion shower nozzle is 10 °～40 °.
Wherein, the inwall of this diffusion shower nozzle is the arc that extends out, and the internal diameter of this diffusion shower nozzle enlarges gradually along the gelatin jet direction.
Wherein, the angle of the axis of the axis of this oral siphon and this straight section trunnion is 0 °～90 °.
Wherein, this glue inlet attack comprises an import and an outlet, and this outlet is inserted in this straight section trunnion from this glue entrance; Part near this outlet in this glue inlet attack is formed with a glue supercharging section, and the internal diameter of this glue supercharging section reduces gradually along the gelatin jet direction.
Wherein, the internal diameter of this outlet becomes large gradually along the injection direction of glue.
Wherein, this glue inlet attack with this nozzle body for being threaded.
Wherein, be provided with an annular flange flange near the position of this import on this glue inlet attack, this annular flange flange end face relative with this straight section trunnion mutually against.
Wherein, this jet nozzle also comprises an O-ring seal, and this O-ring seal is located between this annular flange flange and this glue entrance.
Preferably, this jet nozzle comprises two or more this oral siphons, and the axis of these described oral siphons and the axis of this trunnion are intersected in this exit.
In the present invention, but above-mentioned optimum condition any combination on the basis that meets this area general knowledge namely gets each preferred embodiment of the present invention.
Positive progressive effect of the present invention is:
At first, do not spray into cohesion at glue and just it is sheared in jet nozzle before still and disperse and produce the condensation devolatilization, namely fulfiled the industrial synthetic rubber last handling process that carries out ahead of schedule in jet nozzle inside in still.
Simultaneously, utilize the strong shear action of high-velocity flow, greatly reduce the granularity size of synthetic rubber micelle, thereby improved the condensation effect of micelle and the volatilization output of solvent.
In addition,, continuously-running simple in structure due to this jet nozzle, equipment cheap for manufacturing cost has advantages of that equipment investment is little and operating cost is low.And because its structure is small and exquisite, can greatly reduce the occupation of land of synthetic rubber aftertreatment technology equipment.
In addition, utilize high-velocity flow to carry out breakdown of emulsion to glue, more environmental protection is polluted.
Description of drawings
Fig. 1 is the cutaway view of the jet nozzle for the synthesis of rubber condensation devolatilization of the present invention.
Fig. 2 is the cutaway view of the nozzle body of jet nozzle in Fig. 1.
Fig. 3 is the cutaway view of the glue inlet attack of jet nozzle in Fig. 1.
The specific embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
In the present embodiment, the injection direction of hypothesis glue is for from left to right.
As illustrated in fig. 1 and 2, the jet nozzle for the synthesis of rubber condensation devolatilization of the present invention comprises a nozzle body 1, and this nozzle body 1 comprises a straight section trunnion 11, and the right-hand member of this straight section trunnion 11 is provided with a diffusion shower nozzle 12.This jet nozzle has also comprised a glue inlet attack 2, and this glue inlet attack 2 is arranged in this straight section trunnion 11.
The glue of question response (being the synthetic rubber glue) this glue inlet attack 2 certainly enters in straight section trunnion 11.
As shown in Figure 2, be provided with to the bilateral symmetry of nozzle body 1 two oral siphons 13 that are used for passing into high-velocity flow, each oral siphon 13 all is communicated with straight section trunnion 11.The angle α of the axis of the relative straight section trunnion 11 in the axis of this oral siphon 13 is 45 °.Certainly, described angle also can be 90 °, 60 ° or 30 °.Simultaneously, the quantity of described oral siphon also can be determined according to actual needs.
High-velocity flow enters straight section trunnion 11 from two oral siphons 13, utilizes the shear action of high-velocity flow just it not to be disperseed in the jet nozzle internal mix before glue sprays into tower or reactor equipment, greatly reduces the granule size of synthetic rubber micelle.
Again as shown in Figure 2, the internal diameter of this diffusion shower nozzle 12 enlarges gradually along the gelatin jet direction.Simultaneously, the inwall of this diffusion shower nozzle 12 is the arc that extends out.That is, the diffusion shower nozzle 12 in the present embodiment is the bell structure of a side.The angle of flare β of this diffusion shower nozzle 12 is 30 °, and it also can be 10 ° or 40 ° of sizes.The described angle of flare is the angle of diffusion shower nozzle and straight section trunnion boundary tangent line in Fig. 2.
Glue utilized the diffusion action of this diffusion shower nozzle to produce " flash distillation " effect before jetting nozzle, make the colloid after dispersion produce the condensation devolatilization after jetting nozzle, namely completed the industrial breakdown of emulsion that carries out, condensation devolatilization process in nozzle interior in Ta Nei or reactor.
Certainly, this diffusion shower nozzle 12 also can be the trapezoidal of a side.
As shown in Figure 3, glue inlet attack 2 comprises an import 21 and an outlet 22, and outlet 22 is positioned at straight section trunnion 11 inside after glue inlet attack 2 inserts straight section trunnions 11, and import 21 is positioned at straight section trunnion 11 outsides.
Position in the interior close outlet 22 of glue inlet attack 2 is formed with a glue supercharging section 23, and the interior strength of this glue supercharging section 23 diminishes gradually along the injection direction of glue, thereby strengthens the pressure of glue.Export 22 internal diameter and slightly become greatly along the injection direction of glue, thereby the glue from glue supercharging section 23 is carried out earth pressure release, reach the purpose that improves the glue flow velocity.
In the present embodiment, glue inlet attack 2 with straight section trunnion 11 for being threaded.Certainly, in addition also can adopt and well known to a person skilled in the art that other pipeline connecting modes connect.
Be provided with an annular flange flange 24 at glue inlet attack 2 near the position that exports 22, the external diameter of this annular flange flange 24 is greater than the internal diameter of this straight section trunnion 11.During assembling, annular flange flange 24 end face relative with straight section trunnion 11 abuts one another, and reaches the purpose that seals both boundarys.
More preferably, can set up one deck O-ring seal (not shown) between annular flange flange 24 and straight section trunnion 11, thereby play more sealing effectiveness.
Jet nozzle for the synthesis of rubber condensation devolatilization of the present invention utilizes the shear action of high-velocity flow that glue is disperseed, and greatly reduces the granularity of micelle.At first, pressurization passes in glue inlet attack 2 with certain pressure and flow velocity glue through pump, enters in the internal mix chamber (being the straight section trunnion) of nozzle body 1 through glue supercharging section 23.Nozzle body 1 oral siphon 13 is by leather pipe joint connecting water pipe input high speed flow of hot water, crosses in nozzle body 1 inside with the glue of import 21 inputs and mixes.
Like this, water and glue have formed high-speed eddy in nozzle body 1 internal chamber, and glue is gradually by high-velocity flow cutting, dispersion.Then, water and disperse after the flow through straight section trunnion 11 of nozzle body 1 of mixed glue solution, then jointly to spray in diffusion shower nozzle 12 at a high speed.The relative straight section trunnion 11 of flow diameter increase suddenly due to diffusion shower nozzle 12 inside, cause the sharply reduction of pressure, will produce the effect of " flash distillation ", thereby make the micelle cohesion in glue, solvent evaporates namely reaches the double effects that condenses devolatilization when reducing the colloidal solid granularity.
The present invention specifically can be used for the devolatilization of low volatility component in some specific rubber for the synthesis of the post-processing stages of rubber, and for example recovery of chlorosulfonated polyethylene colloid post-processing stages internal solvent carbon tetrachloride can adopt nozzle of the present invention to process.Adopt equipment of the present invention to carry out condensation devolatilization post processing to the synthetic rubber glue, make micelle disperse and two processes of condensation devolatilization can be carried out simultaneously, have a dispersion effect good, cohesion and the high advantage of devolatilization efficient.Simultaneously,, treating capacity simple due to this nozzle arrangements is large, equipment cheap for manufacturing cost, thereby have advantages of that equipment investment is little and operating cost is low.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art can make various changes or modifications to these embodiments under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (2)
1. the jet nozzle for the synthesis of rubber condensation devolatilization, is characterized in that, it comprises: a nozzle body, be formed with a straight section trunnion in this nozzle body, and an end that points to the gelatin jet direction at this straight section trunnion is formed with a diffusion shower nozzle; Be provided with the oral siphon that at least one is communicated with this straight section trunnion in the side of this nozzle body; This jet nozzle comprises that also one inserts in the glue inlet attack of this straight section trunnion; The internal diameter of the end that this diffusion shower nozzle is connected with this straight section trunnion is less than the internal diameter of this diffusion shower nozzle away from an end of this straight section trunnion; The angle of flare of this diffusion shower nozzle is 10 ° ~ 40 °; The inwall of this diffusion shower nozzle is the arc that extends out, and the internal diameter of this diffusion shower nozzle enlarges gradually along the gelatin jet direction; The angle of the axis of the axis of this oral siphon and this straight section trunnion is 0 ° ~ 90 °; This glue inlet attack comprises an import and an outlet, and to be positioned at this straight section trunnion inner in this outlet after this glue inlet attack inserts this straight section trunnion; Part near this outlet in this glue inlet attack is formed with a glue supercharging section, and the internal diameter of this glue supercharging section reduces gradually along the gelatin jet direction.
2. the jet nozzle for the synthesis of rubber condensation devolatilization as claimed in claim 1, is characterized in that, the internal diameter of this outlet becomes large gradually along the injection direction of glue.
3, the jet nozzle for the synthesis of rubber condensation devolatilization as claimed in claim 2, is characterized in that, this glue inlet attack with this nozzle body for being threaded.
4, the jet nozzle for the synthesis of rubber condensation devolatilization as claimed in claim 3, is characterized in that, is provided with an annular flange flange near the position of this import on this glue inlet attack, this annular flange flange end face relative with this straight section trunnion mutually against.
5, the jet nozzle for the synthesis of rubber condensation devolatilization as claimed in claim 4, is characterized in that, this jet nozzle also comprises an O-ring seal, and this O-ring seal is located between this annular flange flange and this straight section trunnion.
6, the jet nozzle for the synthesis of rubber condensation devolatilization as claimed in claim 5, is characterized in that, this jet nozzle comprises this oral siphon more than two, and the axis of these described oral siphons and the axis of this trunnion are intersected in this exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110113113 CN102179329B (en) | 2011-04-29 | 2011-04-29 | Jet nozzle for condensing and devolatilizing synthetic rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110113113 CN102179329B (en) | 2011-04-29 | 2011-04-29 | Jet nozzle for condensing and devolatilizing synthetic rubber |
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| Publication Number | Publication Date |
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| CN102179329A CN102179329A (en) | 2011-09-14 |
| CN102179329B true CN102179329B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110113113 Expired - Fee Related CN102179329B (en) | 2011-04-29 | 2011-04-29 | Jet nozzle for condensing and devolatilizing synthetic rubber |
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Families Citing this family (6)
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| CN107570331B (en) * | 2016-06-30 | 2020-11-03 | 山保工业株式会社 | Liquid dispensing nozzle |
| CN107983593A (en) * | 2017-12-27 | 2018-05-04 | 苏州华控注胶技术有限公司 | A kind of glue mouth structure for AB glue mixing |
| CN113082741B (en) * | 2019-12-23 | 2022-08-05 | 中国石油天然气股份有限公司 | Sizing material processing equipment |
| CN112138557A (en) * | 2020-10-21 | 2020-12-29 | 大庆德美特尔能源科技有限公司 | Solid-liquid mixing ejector |
| CN113399135B (en) * | 2021-06-22 | 2022-11-15 | 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 |
| CN115738138B (en) * | 2022-11-08 | 2024-04-02 | 应急管理部四川消防研究所 | Smoke-eliminating foam generating and spraying integrated device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4411388A (en) * | 1981-03-26 | 1983-10-25 | Muck Jack E | Apparatus for conveying lightweight particulate matter |
| US4545157A (en) * | 1983-10-18 | 1985-10-08 | Mccartney Manufacturing Company | Center feeding water jet/abrasive cutting nozzle assembly |
| CN2491132Y (en) * | 2001-08-09 | 2002-05-15 | 中国石化集团安庆石油化工总厂 | High pressure water sand spraying nozzle |
| CN2724849Y (en) * | 2004-07-16 | 2005-09-14 | 农业部南京农业机械化研究所 | Jetting type air mixing spray-nozzle |
| CN2882807Y (en) * | 2006-03-06 | 2007-03-28 | 许新启 | Fined particle fluidized sprayer nozzle |
| EP1628785B1 (en) * | 2003-05-21 | 2008-12-31 | Arkaim, Inc. | Nozzle for generating high-energy cavitation |
-
2011
- 2011-04-29 CN CN 201110113113 patent/CN102179329B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4411388A (en) * | 1981-03-26 | 1983-10-25 | Muck Jack E | Apparatus for conveying lightweight particulate matter |
| US4545157A (en) * | 1983-10-18 | 1985-10-08 | Mccartney Manufacturing Company | Center feeding water jet/abrasive cutting nozzle assembly |
| CN2491132Y (en) * | 2001-08-09 | 2002-05-15 | 中国石化集团安庆石油化工总厂 | High pressure water sand spraying nozzle |
| EP1628785B1 (en) * | 2003-05-21 | 2008-12-31 | Arkaim, Inc. | Nozzle for generating high-energy cavitation |
| CN2724849Y (en) * | 2004-07-16 | 2005-09-14 | 农业部南京农业机械化研究所 | Jetting type air mixing spray-nozzle |
| CN2882807Y (en) * | 2006-03-06 | 2007-03-28 | 许新启 | Fined particle fluidized sprayer nozzle |
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| CN102179329A (en) | 2011-09-14 |
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