CN211562904U - Devolatilization machine system - Google Patents
Devolatilization machine system Download PDFInfo
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- CN211562904U CN211562904U CN201921990813.4U CN201921990813U CN211562904U CN 211562904 U CN211562904 U CN 211562904U CN 201921990813 U CN201921990813 U CN 201921990813U CN 211562904 U CN211562904 U CN 211562904U
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- Prior art keywords
- devolatilization
- chamber
- injection pipe
- devolatilizer
- polymer
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- 238000002347 injection Methods 0.000 claims abstract description 37
- 239000007924 injection Substances 0.000 claims abstract description 37
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 18
- 229920000642 polymer Polymers 0.000 claims description 50
- 238000004891 communication Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
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Abstract
The utility model discloses a devolatilization machine system, which comprises a devolatilization chamber, an exhaust chamber and an injection pipe, wherein the exhaust chamber is communicated with the devolatilization chamber; the cross-sectional area of the injection pipe along the flow direction of the devolatilization auxiliary agent is gradually increased, the end with the larger diameter of the injection pipe is positioned in the exhaust chamber, and the injection pipe is used for injecting the devolatilization auxiliary agent into the devolatilization chamber. This take off and wave quick-witted system can take off and wave the auxiliary agent to taking off and wave indoor addition through setting up the injection pipe, improves and takes off and waves efficiency, and simultaneously, the injection pipe is along taking off the cross-sectional area crescent of volatilizing the auxiliary agent flow direction so that the increase takes off the injection area of volatilizing the auxiliary agent to take off and wave efficiency has further been improved.
Description
Technical Field
The utility model relates to a polymer takes off and waves technical field, especially relates to a take off and wave quick-witted system.
Background
The polymer exiting the reactor contains components of low relative molecular mass, such as monomers, solvents and reaction by-products, collectively referred to as volatiles, which are components that should not be contained in the polymer. The process of devolatilization from a polymer solution or bulk polymer, known as polymer devolatilization, has become one of the necessary unit operations in a polymer production process that meets health and environmental requirements while improving polymer properties.
Existing devolatilizers include heating devices, devolatilization chambers, and screws that rotate within the devolatilization chambers, etc.: firstly, polymer materials are preheated to 150-300 ℃ through a heat exchanger, so that the materials have certain temperature and viscosity, then the materials enter a devolatilization chamber with certain vacuum degree to remove most of volatile components, the volatile components are discharged through an exhaust port, a rotating screw can increase devolatilization efficiency and is convenient for extruding the devolatilized polymers, and therefore a copolymer product with the residual quantity of the volatile components being lower than 1000PPm is obtained.
At present, for improving the devolatilization efficiency of a devolatilizer, people generally adopt the modes of improving the devolatilization effect by improving the temperature of the devolatilizer, increasing the power of a vacuum system or changing the combination configuration of a screw rod, etc., but the performance of a polymer is easily changed due to overhigh temperature of the devolatilizer, and the two modes of increasing the power of the vacuum system and changing the combination configuration of the screw rod have high requirements on the technology and higher cost.
Therefore, there is a need for a devolatilizer system that solves the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a take off and wave quick-witted system can improve and take off and wave efficiency.
To achieve the purpose, the utility model adopts the following technical proposal:
a devolatilizer system comprising a devolatilization chamber, further comprising:
an exhaust chamber in communication with the devolatilization chamber;
the cross-sectional area of the injection pipe along the flow direction of the devolatilization auxiliary agent is gradually increased, the end with the larger diameter of the injection pipe is positioned in the exhaust chamber, and the injection pipe is used for injecting the devolatilization auxiliary agent into the devolatilization chamber.
Optionally, the devolatilizer system further comprises a delivery pipe, and the other end of the injection pipe passes through the exhaust chamber to be communicated with the delivery pipe outside.
Optionally, the devolatilizer system further comprises a delivery pipe which passes through the exhaust chamber and is communicated with the end with the smaller diameter of the injection pipe.
Optionally, a metering pump is arranged on the conveying pipe.
Optionally, a stop valve is provided on the delivery pipe.
Optionally, the devolatilization machine system further comprises a vacuum viewing mirror, the vacuum viewing mirror is disposed on the exhaust chamber, and the vacuum viewing mirror is configured to observe a devolatilization condition of the devolatilization chamber.
Optionally, the devolatilizer system further comprises an outer chamber, wherein the devolatilizer chamber is mounted inside the outer chamber.
Optionally, the devolatilization chamber is provided with a plurality of devolatilization chambers, and the plurality of devolatilization chambers are sequentially communicated and the internal temperatures of the plurality of devolatilization chambers gradually increase along the polymer flow direction.
Optionally, two adjacent devolatilization chambers are detachably connected through a flange.
Optionally, the devolatilizer system further comprises a screw rotatably disposed within the devolatilization chamber.
The utility model has the advantages that:
the utility model provides a take off and wave quick-witted system. This take off and wave quick-witted system can be to taking off the intracavity and add the auxiliary agent of taking off and wave through setting up the injection tube, has improved and has taken off and wave efficiency, and simultaneously, the injection tube is along taking off the cross-sectional area crescent of volatilizing the auxiliary agent flow direction so that the increase takes off the injection area of volatilizing the auxiliary agent to take off and wave efficiency has further been improved.
Drawings
Fig. 1 is a longitudinal cross-sectional view of a devolatilizer system provided by the present invention;
fig. 2 is a front view of a devolatilizer system provided by the present invention;
fig. 3 is a top view of a devolatilizer system provided by the present invention.
In the figure:
100. a polymer inlet; 200. a polymer outlet;
1. a devolatilization chamber; 2. an exhaust chamber; 3. an outer chamber; 4. a screw; 5. an injection pipe; 6. a delivery pipe; 61. a metering pump; 62. a stop valve; 7. a vacuum scope; 8. a base; 9. a transition chamber.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, the devolatilizer system provided in this embodiment includes a devolatilization chamber 1, an exhaust chamber 2, an outer chamber 3, a screw 4, an injection pipe 5, a conveying pipe 6, and a vacuum mirror 7. Specifically, the devolatilization chamber 1 is communicated with the exhaust chamber 2, the devolatilization chamber 1 is installed inside the outer chamber 3, and a screw 4 is provided in the devolatilization chamber 1. An injection pipe 5 is arranged in the exhaust chamber 2, and the injection pipe 5 is communicated with a conveying pipe 6. The vacuum mirror 7 is mounted on the exhaust chamber 2.
It is noted that the devolatilization aids are condensable, non-toxic, low cost, easily separable from the recycle, and inert materials (e.g., water, carbon dioxide). Because the specific heat capacity of water is large and easy to obtain, the devolatilization auxiliary agent is water, the water is conveyed to the devolatilization chamber 1 through the injection pipe 5 to be mixed with the molten polymer, and a large number of bubble nuclei can be formed along with the volatilization of the solvent in the molten polymer, so that the devolatilization surface area is effectively increased, the mass transfer is promoted, and the solvent residues in the polymer are taken away. Meanwhile, at the temperature set by the devolatilization machine system, the water and the solvent of the polymer are volatilized to achieve the stripping effect (the polymer is directly contacted with water vapor, so that volatile low-molecular substances in the polymer are diffused into a gas phase according to a certain proportion, and the purpose of separating solvent residues from the polymer is achieved), so that the solvent residues in the polymer are taken away, and the purpose of reducing the residual solvent in the polymer is achieved.
Specifically, devolatilization chamber 1 is used for polymer devolatilization reaction vessel, devolatilization chamber 1 can be set to be a plurality of, a plurality of devolatilization chambers 1 are communicated in sequence and the internal temperature of a plurality of devolatilization chambers 1 gradually rises along the polymer flow direction, and two adjacent devolatilization chambers 1 are detachably connected through a flange so as to facilitate the installation and maintenance of the device. As shown in fig. 2, the polymer enters the devolatilization chamber 1 through the polymer inlet 100 and finally flows out of the devolatilization chamber 1 through the polymer outlet 200, and a corresponding number of devolatilization chambers 1 may be disposed between the polymer inlet 100 and the polymer outlet 200 as needed. The temperature of the plurality of devolatilization chambers 1 gradually increases in the direction from the polymer inlet 100 to the polymer outlet 200. The multiple devolatilization chambers 1 and the gradual temperature rise design can gradually improve the devolatilization efficiency of the polymer in the flowing process.
Specifically, as shown in fig. 1, the exhaust chamber 2 is perpendicular to the devolatilization chamber 1 and the exhaust chamber 2 is located at the upper part of the devolatilization chamber 1, and the exhaust chamber 2 is used for exhausting the volatile component in the polymer in the devolatilization chamber 1. Preferably, when the devolatilization chamber 1 is provided in plurality, one exhaust chamber 2 is communicated with each devolatilization chamber 1, respectively.
As shown in fig. 1, specifically, the outer chamber 3 is detachably fixed to the devolatilization chamber 1 by bolts, and the outer chamber 3 can insulate and insulate the devolatilization chamber 1. Correspondingly, when taking off the cavity 1 and establishing to be a plurality of, outer cavity 3 also is equipped with a plurality ofly, installs one in every outer cavity 3 and takes off cavity 1, can dismantle the connection between two adjacent outer cavities 3.
Alternatively, the screw 4 is disposed along the length direction of the devolatilization chamber 1 and is disposed coaxially with the devolatilization chamber 1. The screw 4 can be rotated inside the devolatilization chamber 1 to push the polymer to flow toward the polymer outlet 200, and specifically, the screw 4 pushes the polymer to flow along the polymer inlet 100 toward the polymer outlet 200, and finally, the devolatilized polymer is extruded from the polymer outlet 200. Meanwhile, the screw 4 also plays a role of interface delamination to improve the devolatilization efficiency of the polymer. Preferably, the screws 4 may be constructed with intermeshing twin screws as close as possible to the inner wall of the devolatilization chamber 1 to maximize polymer push and volatile component separation.
The cross-sectional area of the injection pipe 5 in the flow direction of the devolatilization aid is gradually increased so as to increase the injection area of the devolatilization aid and accelerate the mixing of the polymer and the devolatilization aid, thereby improving the devolatilization efficiency. The end of the injection pipe 5 with a larger diameter is positioned in the exhaust chamber 2 and is used for injecting the devolatilization auxiliary agent into the polymer in the devolatilization chamber 1 to improve the devolatilization efficiency. The area of the pipe orifice at the end with the larger diameter of the injection pipe 5 is smaller than the cross-sectional area of the inside of the exhaust chamber 2, namely the injection pipe 5 does not influence the discharge of volatile components from the exhaust chamber 2.
Alternatively, the delivery pipe 6 communicates with the injection pipe 5, and the end of the injection pipe 5 having a smaller diameter passes through the exhaust chamber 2 to communicate with the delivery pipe 6 outside. It is also possible that the delivery pipe 6 communicates through the exhaust chamber 2 with the inner injection pipe 5 at the end with the smaller diameter. The interface of the delivery pipe 6 or the injection pipe 5 and the exhaust chamber 2 needs to be sealed to avoid gas leakage inside the exhaust chamber 2. The conveying pipe 6 is used for conveying the devolatilization aid. As shown in fig. 2, in order to better control the feeding amount of the devolatilization aid, a metering pump 61 is provided on the feeding pipe 6, and the devolatilization aid with a preset feeding amount is fed by the metering pump 61. As shown in fig. 2, the delivery pipe 6 is also provided with a shut-off valve 62. The stop valve 62 is a straight-through stop valve 62 with the same size as the delivery pipe 6, and the input time of the devolatilization auxiliary agent can be selected according to actual needs by adjusting the opening and closing of the stop valve 62.
As shown in fig. 1 and 2, preferably, the vacuum mirror 7 is disposed at the top of the exhaust chamber 2 so as to observe the devolatilization condition of the devolatilization chamber 1, the vacuum mirror 7 is detachably connected to the top of the exhaust chamber 2, and the detachable design facilitates cleaning and maintenance of the vacuum mirror 7. In actual operation, the devolatilization condition of the devolatilization chamber 1 can be observed through the vacuum sight glass 7, and then the flow rate of the devolatilization aid can be preset by the metering pump 61 as needed. For example, when the flow rate of the polymer in the devolatilization chamber 1 near the polymer outlet 100 is large and the devolatilization efficiency is low as observed by the vacuum test glass 7, a large flow rate of the devolatilization aid can be set by the metering pump 61 to improve the devolatilization efficiency thereof; the devolatilization chamber 1 close to the polymer outlet 200 has been devolatilized layer by layer, a small flow rate of the devolatilization aid can be set by the metering pump 61, or the temperature of the devolatilization chamber 1 itself can make the polymer devolatilization sufficient, so that the addition of the devolatilization aid is not needed at this time. Finally, when the polymer is sufficiently devolatilized, the shut-off valve 62 is closed, and the transfer pipe 6 stops transferring the devolatilization aid.
As shown in fig. 2, in order to maintain the stability of the whole devolatilizer system, the devolatilizer system further comprises a base 8, one end of the base 8 is fixedly connected to the bottom of the outer chamber 3, and the other end is supported on the ground, and the base 8 is provided in a plurality and is distributed at the bottom of the outer chamber 3 at equal intervals.
As shown in fig. 3, the devolatilizer system further comprises a transition chamber 9, one end of the transition chamber 9 is communicated with the exhaust chamber 2, and the other end is communicated with the vacuum system so as to input the volatile components into the vacuum system.
The utility model provides a take off and wave quick-witted system through setting up injection pipe 5, can take off the auxiliary agent to taking off and wave in the 1 interior interpolation of cavity, improved and taken off and wave efficiency, simultaneously, injection pipe 5 is along taking off the cross-sectional area crescent of auxiliary agent flow direction so that the increase takes off the injection area of auxiliary agent to take off and wave efficiency has further been improved.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. A devolatilizer system comprising a devolatilization chamber (1), further comprising:
an exhaust chamber (2), the exhaust chamber (2) being in communication with the devolatilization chamber (1);
the cross-sectional area of injection pipe (5) along devolatilization auxiliary agent flow direction increases gradually, the great one end of injection pipe (5) diameter is located in exhaust chamber (2), injection pipe (5) are used for to inject in devolatilization chamber (1) the devolatilization auxiliary agent.
2. The devolatilizer system as claimed in claim 1 further comprising a delivery pipe (6), the other end of said injection pipe (5) communicating with the external delivery pipe (6) through said exhaust chamber (2).
3. The devolatilizer system as claimed in claim 1 further comprising a duct (6), said duct (6) communicating through the exhaust chamber (2) with the smaller diameter end of the injection tube (5).
4. The devolatilizer system as claimed in claim 2 or 3 wherein said delivery pipe (6) is provided with a metering pump (61).
5. The devolatilizer system as claimed in claim 2 or 3 wherein the delivery pipe (6) is provided with a shut-off valve (62).
6. The devolatilizer system as claimed in claim 1 further comprising a vacuum view mirror (7), said vacuum view mirror (7) being provided on said exhaust chamber (2), said vacuum view mirror (7) being used for observing the devolatilization of said devolatilization chamber (1).
7. The devolatilizer system as claimed in claim 1 further comprising an outer chamber (3), said outer chamber (3) having said devolatilizer chamber (1) mounted therein.
8. The devolatilizer system as claimed in claim 1 wherein said devolatilization chamber (1) is provided in plurality, said plurality of devolatilization chambers (1) being in communication in sequence and the internal temperature of said plurality of devolatilization chambers (1) being gradually increased along the polymer flow direction.
9. The devolatilizer system as claimed in claim 8 wherein adjacent two of said devolatilization chambers (1) are removably connected by flanges.
10. The devolatilizer system as claimed in claim 1 further comprising a screw (4), said screw (4) being rotatably disposed inside said devolatilization chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921990813.4U CN211562904U (en) | 2019-11-18 | 2019-11-18 | Devolatilization machine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921990813.4U CN211562904U (en) | 2019-11-18 | 2019-11-18 | Devolatilization machine system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211562904U true CN211562904U (en) | 2020-09-25 |
Family
ID=72531432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921990813.4U Active CN211562904U (en) | 2019-11-18 | 2019-11-18 | Devolatilization machine system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211562904U (en) |
-
2019
- 2019-11-18 CN CN201921990813.4U patent/CN211562904U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211109 Address after: 525000 No.1, South ethylene Road, Qijing Town, high tech Zone, Maoming City, Guangdong Province Patentee after: Guangdong Zhonggao Technology Co.,Ltd. Address before: 525000 Room 203, 2nd floor, Yongsheng building, 28 Guanghua North Road, Maonan District, Maoming City, Guangdong Province Patentee before: GUANGDONG ZHONGHE ZHONGDE FINE CHEMICAL RESEARCH DEVELOPMENT Co.,Ltd. Patentee before: Guangdong Zhonggao Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 525000 No.1, South ethylene Road, Qijing Town, high tech Zone, Maoming City, Guangdong Province Patentee after: Guangdong Zhonghe High Tech Co.,Ltd. Country or region after: China Address before: 525000 No.1, South ethylene Road, Qijing Town, high tech Zone, Maoming City, Guangdong Province Patentee before: Guangdong Zhonggao Technology Co.,Ltd. Country or region before: China |