CN204278479U - Butadiene styrene resin devolatilization extruder - Google Patents
Butadiene styrene resin devolatilization extruder Download PDFInfo
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- CN204278479U CN204278479U CN201420671585.5U CN201420671585U CN204278479U CN 204278479 U CN204278479 U CN 204278479U CN 201420671585 U CN201420671585 U CN 201420671585U CN 204278479 U CN204278479 U CN 204278479U
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- styrene resin
- butadiene styrene
- decelerator
- machine barrel
- screw rod
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of butadiene styrene resin devolatilization extruder, comprise mair motor, decelerator, screw rod and machine barrel, mair motor is connected with decelerator, and machine barrel is connected with decelerator, screw rod is connected with the output shaft of decelerator, and described screw rod adopts incorgruous non-engaging twin-screw structure.A kind of butadiene styrene resin devolatilization extruder of the utility model, principle is advanced, and devolatilization ability is strong, and efficiency is high, and quality of item is good, rational in infrastructure, safety and environmental protection, easy to maintenance.
Description
Technical field
The utility model relates to a kind of butadiene styrene resin devolatilization extruder.
Background technology
In recent years, in China's petrochemical industry, field of macromolecule polymerization develops rapidly, wherein utilize solwution method to carry out polymerisation and become the wider method of application; namely butadiene styrene resin is be polymerized by this kind of method; the butadiene styrene resin solution after reaction terminates after pre-devolatilization concentration usually at about 40-50%, still can containing a large amount of solvents and part unreacted residual monomer.Want to be processed into routine use resin granular material the most easily, must concentrate polymer solution, by solvent removal wherein, subsequently again by polymer melt extruding pelletization, the devolatilization equipment of usual employing has flash tank, fall bar devolatilizer, degassing extruder etc., but it is high to there is energy consumption in above devolatilization equipment, devolatilization residual solvent levels is high, devolatilization efficiency is low, be difficult to process the shortcomings such as the large material solution of viscosity span, technique cannot meet the demands, quality of item is difficult to ensure, the devolatilization Capability Requirement of butadiene styrene resin to extruder is very high, the content of solvent is fewer (usual <0.5%), the quality of goods is better, if solvent is too high, butadiene styrene resin can lose the valuable transparency, become jaundice.
Utility model content
The purpose of this utility model is to provide a kind of butadiene styrene resin devolatilization extruder for concentrated butadiene styrene resin solution.
The technical scheme that the utility model is adopted for achieving the above object is: a kind of butadiene styrene resin devolatilization extruder, comprise mair motor, decelerator, screw rod and machine barrel, mair motor is connected with decelerator, machine barrel is connected with decelerator, screw rod is connected with the output shaft of decelerator, and described screw rod adopts incorgruous non-engaging twin-screw structure.
Described machine barrel is provided with four exhaust outlets, and an exhaust outlet of machine barrel leading section is atmospheric exhaust mouth, and three exhaust outlets of rearward end are vaccum exhaust outlet.
The front end of three vaccum exhaust outlets of described machine barrel is respectively arranged with melt sealant element.
A kind of butadiene styrene resin devolatilization extruder of the utility model, principle is advanced, and devolatilization ability is strong, and efficiency is high, and quality of item is good, rational in infrastructure, safety and environmental protection, easy to maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of butadiene styrene resin devolatilization extruder of the utility model.
Fig. 2 is the screw principle schematic diagram of a kind of butadiene styrene resin devolatilization extruder of the utility model.
Fig. 3 is the screw-rod structure schematic diagram of a kind of butadiene styrene resin devolatilization extruder of the utility model.
Fig. 4 is the machine barrel exhaust outlet distribution schematic diagram of a kind of butadiene styrene resin devolatilization extruder of the utility model.
In figure: 1, mair motor; 2, decelerator; 3, screw rod; 4, machine barrel; 5, exhaust outlet; 6, melt sealant element; 7, stripping mouth.
Detailed description of the invention
As shown in Figures 1 to 4, butadiene styrene resin devolatilization extruder, comprise mair motor 1, decelerator 2, screw rod 3 and machine barrel 4, mair motor 1 is connected with decelerator 2, machine barrel 4 is connected with decelerator 2, screw rod 3 is connected with the output shaft of decelerator 2, screw rod 3 adopts incorgruous non-engaging twin-screw structure, machine barrel 4 is provided with four exhaust outlets 5, an exhaust outlet of machine barrel leading section is atmospheric exhaust mouth, three exhaust outlets of rearward end are vaccum exhaust outlet, the front end of three vaccum exhaust outlets of machine barrel is respectively arranged with melt sealant element 6, the front end of two vaccum exhaust outlets below of this machine barrel is respectively arranged with stripping mouth 7, be charging aperture after the atmospheric exhaust mouth of machine barrel, the atmospheric exhaust mouth of this machine barrel and the screw rod at charging aperture place are double end element, the screw rod of remainder is single head element, this butadiene styrene resin devolatilization extruder is free gravity blanking at charging place polymer solution, feed inlet device not only facilitates charging, also can be incubated solution simultaneously, for the solvent devolatilization of atmospheric exhaust mouth provides power, because feed state is solution, discharge state is melt, both differences in viscosity are apart from larger, for the devolatilization of butadiene styrene resin solution well can be processed, devolatilization extruder is designed to incorgruous non-engaging twin-screw extruder by the utility model choosing, the motor behavior by repeated compression and release is there is in material between two screw rods, more be conducive to solvent from removing solution, screw rod adopts the super large draw ratio design of 64, be beneficial to exhaust, in the initial charge stage, solution viscosity is less, in machine barrel, now pass into deep fat heat solution, the element that screw rod is set to large pitch is beneficial to its heat transfer, it is made to have enough flash distillation power, along with removing of solvent, solution viscosity strengthens, and now exterior conductive heat and internal shear heat provide energy to devolatilization jointly, and this section of screw rod is set to the element of little helical pitch, and it becomes the Main Means of energy input to the stirring of solution and shearing, the devolatilization later stage, solution gradually became melt, and viscosity is higher, now passed into cooling medium in machine barrel, prevented material thermal degradation with the shear heat of withdrawing internal batch, melt sealant element is provided with before exhaust outlet, carry out violent shearing with while providing devolatilization power to butadiene styrene resin solution, balance the flow of material before and after exhaust outlet, butadiene styrene resin solution is prevented to be drawn out of from exhaust outlet, other two screw designs are the structure that one is long and the other is short, single-screw conveying is become at devolatilization end fused materials, what be conducive to follow-up flow process builds pressure, for effectively solvent being removed from interface, unit is provided with 4 exhaust outlets altogether, wherein 1 joint is atmospheric exhaust mouth, slough the solvent of nearly about 50%, all the other 3 vaccum exhaust outlet vacuums improve gradually, slough remaining solvent, in process, the viscosity of solution is in continuous change, and need through multistage devolatilization, each stage needs the heat energy that provides also different, therefore barrel design binary channels runner, the medium that can pass into two kinds of different temperatures regulates, ensure that every section of machine barrel can both heat timely and remove heat, during work, butadiene styrene resin solution enters into devolatilization by impeller pump and squeezes mixing system, mair motor 1 is by decelerator 2 drive screw 3 counter rotating, under the exterior conductive heat of machine barrel 4 and the shear action of screw rod 3, solvent is deviate from from solution, devolatilization has been discharged from exhaust outlet 5.
Claims (3)
1. a butadiene styrene resin devolatilization extruder, it is characterized in that: comprise mair motor, decelerator, screw rod and machine barrel, mair motor is connected with decelerator, and machine barrel is connected with decelerator, screw rod is connected with the output shaft of decelerator, and described screw rod adopts incorgruous non-engaging twin-screw structure.
2. a kind of butadiene styrene resin devolatilization extruder according to claim 1, it is characterized in that: described machine barrel is provided with four exhaust outlets, an exhaust outlet of machine barrel leading section is atmospheric exhaust mouth, three exhaust outlets of rearward end are vaccum exhaust outlet.
3. a kind of butadiene styrene resin devolatilization extruder according to claim 2, is characterized in that: the front end of three vaccum exhaust outlets of described machine barrel is respectively arranged with melt sealant element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420671585.5U CN204278479U (en) | 2014-11-12 | 2014-11-12 | Butadiene styrene resin devolatilization extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420671585.5U CN204278479U (en) | 2014-11-12 | 2014-11-12 | Butadiene styrene resin devolatilization extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204278479U true CN204278479U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420671585.5U Active CN204278479U (en) | 2014-11-12 | 2014-11-12 | Butadiene styrene resin devolatilization extruder |
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| Country | Link |
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| CN (1) | CN204278479U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527024A (en) * | 2014-11-12 | 2015-04-22 | 大连橡胶塑料机械股份有限公司 | A butadiene-styrene resin devolatilization extruder |
-
2014
- 2014-11-12 CN CN201420671585.5U patent/CN204278479U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527024A (en) * | 2014-11-12 | 2015-04-22 | 大连橡胶塑料机械股份有限公司 | A butadiene-styrene resin devolatilization extruder |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161209 Address after: 116036 Ganjingzi Province, Dalian District, Hui Road, No. 18, Patentee after: Dalian Rubber Plastic Machinery Co., Ltd. Address before: 116033 Ganjingzi Province, Dalian District, Hui Road, No. 18, Patentee before: Dalian Rubber And Plastics Machinery Co., Ltd. |