CN204840988U - Polycarbonate fuse -element takes off waves device - Google Patents
Polycarbonate fuse -element takes off waves device Download PDFInfo
- Publication number
- CN204840988U CN204840988U CN201520504649.7U CN201520504649U CN204840988U CN 204840988 U CN204840988 U CN 204840988U CN 201520504649 U CN201520504649 U CN 201520504649U CN 204840988 U CN204840988 U CN 204840988U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- devolatilizer
- reaction system
- melt
- ware
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model provides a polycarbonate fuse -element takes off waves device, includes reaction system, heat exchanger, takes off and waves ware, delivery pump and granulation system, the reaction system with the cold fluid inlet of heat exchanger is linked together, the reaction system with be equipped with auxiliary agent addition system between the heat exchanger, the cold fluid issuing of heat exchanger with take off and wave ware upper end intercommunication, take off and wave the ware and still be equipped with nitrogen gas pipe and vacuum tube, take off and wave the ware and pass through the delivery pump with granulation system is linked together. Through above -mentioned technical scheme, the whole exchange of taking off the process of waving and not carrying out the material with the atmosphere, and can extract out the material that produces that volatilizees rapidly through the vacuum tube to the gas tightness of equipment is greatly improved. Simultaneously, the simple cost of manufacture of this equipment structure is low, is fit for most chemical enterprises and uses.
Description
Technical field
The utility model relates to chemical production field, particularly relates to a kind of polycarbonate melt Devolatilization device.
Background technology
With non-phosgene melt transesterification technique polycarbonate synthesis, reaction system viscosity is high the phase after the reaction, and unreacted starting monomer (as diphenyl carbonate) and byproduct of reaction (as phenol) are difficult to remove from system.
Remain in raw material in polycarbonate resin or byproduct of reaction too much time, easily cause Merlon at high temperature to be degraded, cause that product turns to be yellow, degradation harmful effect under mechanical performance.
Traditional mechanical type Devolatilization device, as twin-screw devolatilization extruder, although can effective devolatilization, due to the reason of structure itself, be difficult to arrive the air-tightness requirement of polyplant, easily cause air impact in reaction system of bleeding react and bring potential safety hazard.Moreover, large-scale twin-screw devolatilization extruder cost of equipment is expensive, and investment is large, and equipment maintenance is comparatively difficult.
Utility model content
For the deficiency that prior art exists, it is good that the purpose of this utility model is to provide a kind of air-tightness, the polycarbonate melt Devolatilization device that equipment cost is low.
For achieving the above object, the utility model provides following technical scheme: a kind of polycarbonate melt Devolatilization device, comprise reaction system, heat exchanger, devolatilizer, melt Conveying pump and granulating system, described reaction system is connected with the cold fluid import of described heat exchanger, auxiliary agent add-on system is provided with between described reaction system and described heat exchanger, described heat exchanger cold fluid outlet is communicated with described devolatilizer upper end, described devolatilizer is also provided with nitrogen tube and vacuum tube, and described devolatilizer is connected with described granulating system by described delivery pump.
As preferably, be provided with liquid-level switch bottom described devolatilizer, described liquid-level switch is connected with described melt Conveying pump.
As preferably, described heat exchanger and devolatilizer are all provided with chuck outward, have thermal medium in described chuck.
The utility model has following advantage: by technique scheme, and whole devolatilization processes does not carry out the exchange of material with air, and can be gone out by the substance withdrawal that volatilization produces rapidly by vacuum tube, thus substantially increases the air-tightness of equipment.Meanwhile, the setting of liquid-level switch effectively can control the melt level in devolatilizer, thus ensures that melt Conveying pump can run normally, and chuck serves effective insulation effect to melt, thus is conducive to carrying out smoothly of devolatilization work.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of polycarbonate melt Devolatilization device of the utility model;
Fig. 2 is the distribution plate structural representation of a kind of polycarbonate melt Devolatilization device of the utility model.
In figure: 1, reaction system; 2, heat exchanger; 3, auxiliary agent add-on system; 4, devolatilizer; 5, melt Conveying pump; 6, granulating system; 7, nitrogen tube; 8, vacuum tube; 9, liquid-level switch; 10, distribution plate.
Detailed description of the invention
Referring to figs. 1 through Fig. 2, the utility model embodiment is described further.
A kind of polycarbonate melt Devolatilization device of the utility model, comprise reaction system 1, heat exchanger 2, devolatilizer 4, delivery pump and granulating system 6, reaction system 1 is connected with the cold fluid import of the heat exchanger 2 carrying mixed function, the cold fluid outlet of heat exchanger 2 is connected with devolatilizer 4 top, and heat exchanger 2 hot fluid passes through conduction oil in importing and exporting.Be provided with auxiliary agent add-on system 3 between reaction system 1 and heat exchanger 2, auxiliary agent add-on system 3 injects steam stripping agent and auxiliary agent to ducted melt; The melt adding steam stripping agent and auxiliary agent enters the heat exchanger 2 with on-line mixing function, make steam stripping agent, auxiliary agent mixes further with Merlon, and melt temperature to be improved 5-10 DEG C by the mode of heat exchange by heat exchanger 2 reduces the viscosity of material with this thus be beneficial to next step devolatilization.
Devolatilizer 4 inner homogeneous has horizontal distribution plate 10, and melt enters devolatilizer 4 by heat exchanger 2, and melt forms the bar with larger devolatilization surface by the distribution plate 10 of devolatilizer 4 inside and falls into bottom devolatilizer 4.Volatile material in this melt will with melt separation.And devolatilizer 4 is also provided with nitrogen tube 7 and vacuum tube 8, now nitrogen tube 7 passes into nitrogen in devolatilizer 4, and the vacuum system of vacuum tube 8 other end relative to devolatilizer 4 vacuumizes devolatilizer 4, make the vacustat of devolatilizer 4 at 0.05mbar (a).Under the acting in conjunction on nitrogen and steam stripping agent and larger devolatilization surface, improve the rate of departure of volatile materials and melt, volatile materials is more easily drawn out of.
Melt Conveying pump 5 is also connected with under bottom devolatilizer 4, melt Conveying pump 5 output is connected with granulating system 6, thus the melt fallen into bottom devolatilizer 4 is delivered to downstream granulating system 6 by melt Conveying pump 5 carries out granulation, thus melt afterwards reduces the reserves of devolatilizer 4 melt, so that also can enter devolatilizer 4 smoothly and easily slough volatile materials.
Further scheme is, liquid-level switch 9 is provided with in devolatilizer 4, liquid-level switch 9 is connected with melt Conveying pump 5, when the fluid level face of melt in devolatilizer 4 is lower than value set by liquid-level switch 9, liquid-level switch 9 will be triggered, transmission signal is to melt Conveying pump 5, and melt Conveying pump 5 shuts down.When liquid level is higher than liquid-level switch 9, liquid-level switch 9 again can transmission signal to melt Conveying pump 5, melt Conveying pump 5 can restart.Thus avoid because the melt in devolatilizer 4 is evacuated and makes melt Conveying pump 5 dally, and then melt Conveying pump 5 is caused to damage.
Further scheme is, is equipped with chuck, is provided with the thermal medium higher than melt temperature in chuck outside pipeline, heat exchanger 2 and devolatilizer 4.Thermal medium herein can be conduction oil or steam etc.Thus ensure that the temperature of melt can remain on the temperature of devolatilization the best all the time in the process of carrying out devolatilization, and then volatile materials fully can be sloughed.
The above is only preferred embodiment of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a polycarbonate melt Devolatilization device, it is characterized in that: comprise reaction system, heat exchanger, devolatilizer, delivery pump and granulating system, described reaction system is connected with the cold fluid import of described heat exchanger, auxiliary agent add-on system is provided with between described reaction system and described heat exchanger, described heat exchanger cold fluid outlet is communicated with described devolatilizer upper end, described devolatilizer is also provided with nitrogen tube and vacuum tube, and described devolatilizer is connected with described granulating system by described delivery pump.
2. a kind of polycarbonate melt Devolatilization device according to claim 1, it is characterized in that: be provided with liquid-level switch bottom described devolatilizer, described liquid-level switch is associated with described delivery pump.
3. a kind of polycarbonate melt Devolatilization device according to claim 2, is characterized in that: described heat exchanger and devolatilizer are all provided with chuck outward, has thermal medium in described chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520504649.7U CN204840988U (en) | 2015-07-13 | 2015-07-13 | Polycarbonate fuse -element takes off waves device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520504649.7U CN204840988U (en) | 2015-07-13 | 2015-07-13 | Polycarbonate fuse -element takes off waves device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204840988U true CN204840988U (en) | 2015-12-09 |
Family
ID=54731587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520504649.7U Active CN204840988U (en) | 2015-07-13 | 2015-07-13 | Polycarbonate fuse -element takes off waves device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204840988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463214A (en) * | 2021-06-29 | 2021-10-01 | 浙江恒澜科技有限公司 | Direct spinning method and device for nylon 6 melt |
-
2015
- 2015-07-13 CN CN201520504649.7U patent/CN204840988U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463214A (en) * | 2021-06-29 | 2021-10-01 | 浙江恒澜科技有限公司 | Direct spinning method and device for nylon 6 melt |
| CN113463214B (en) * | 2021-06-29 | 2023-08-29 | 浙江恒逸石化研究院有限公司 | Nylon 6 melt direct spinning method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105175703A (en) | Equipment for preparing polycarbonate | |
| CN204840988U (en) | Polycarbonate fuse -element takes off waves device | |
| CN204779448U (en) | Polycarbonate apparatus for producing | |
| CN203525676U (en) | Gas-liquid double-cycle reaction device for preparing glyoxylic acid by using oxygen oxidation method | |
| CN108916128A (en) | A kind of phenol steam jet vacuum system | |
| CN204275521U (en) | A kind of liquid ammonia gasification dry evaporator | |
| CN204198776U (en) | Waste gas of hot-blast stove flue is used for the device of reverse gas cleaning and Pneumatic ash conveying | |
| CN202705041U (en) | Industry waste phosphoric acid liquid recovery processing and utilizing device | |
| CN203141821U (en) | Cooling water tank for engineering plastic granulator | |
| CN205760487U (en) | A kind of yellow phosphoric tail gas absorption plant | |
| CN203128193U (en) | Purifying and recovering equipment system of sulfur tetrafluoride | |
| CN201366763Y (en) | Drying device for plastic granulation | |
| CN203728742U (en) | Equipment for preparing chloropivaloyl pentane | |
| CN209069012U (en) | Box type vacuum furnace cooling system | |
| CN103819507B (en) | A kind of ethrel resets technique | |
| CN203807374U (en) | Production equipment of circulating terpene-phenolic resin | |
| CN104174344B (en) | A kind of reaction unit and method preparing polymethoxy dimethyl ether | |
| CN202991414U (en) | Vacuum unit system for glycol steam-jet pump | |
| CN206561587U (en) | Plastic strip cooling system | |
| CN205219531U (en) | A cooling water circulation system for preparing damping fin | |
| CN104689587A (en) | Liquid ring type vacuum pump system for chlorinated benzene vacuum rectification | |
| CN204502443U (en) | For the liquid-ring vacuum pump system of Benzene Chloride rectification under vacuum | |
| CN204125388U (en) | A kind of device of normal temperature synthesis polycarboxylate water-reducer powder | |
| CN207430262U (en) | Produce the device of high-purity oxygen difluoride | |
| CN202322370U (en) | Generator for producing chlorine dioxide by using acidified sodium chlorite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |