CN220328659U - Washing device for polyvinyl butyral resin - Google Patents
Washing device for polyvinyl butyral resin Download PDFInfo
- Publication number
- CN220328659U CN220328659U CN202321855232.6U CN202321855232U CN220328659U CN 220328659 U CN220328659 U CN 220328659U CN 202321855232 U CN202321855232 U CN 202321855232U CN 220328659 U CN220328659 U CN 220328659U
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- Prior art keywords
- washing
- polymer
- kettle
- pipeline
- discharging pipeline
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- 238000005406 washing Methods 0.000 title claims abstract description 68
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 title claims abstract description 15
- 229920005989 resin Polymers 0.000 title claims abstract description 13
- 239000011347 resin Substances 0.000 title claims abstract description 13
- 229920000642 polymer Polymers 0.000 claims abstract description 73
- 238000007599 discharging Methods 0.000 claims abstract description 44
- 238000001556 precipitation Methods 0.000 claims abstract description 32
- 238000004090 dissolution Methods 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000002904 solvent Substances 0.000 claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 14
- 239000002699 waste material Substances 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000710 polymer precipitation Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- HGBOYTHUEUWSSQ-UHFFFAOYSA-N valeric aldehyde Natural products CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The utility model provides a washing device for polyvinyl butyral resin, and belongs to the technical field of polymer purification devices. The washing device includes: the polymer dissolution washing kettle is provided with a polymer feeding pipeline, a solvent feeding pipeline, a polymer discharging pipeline and a heating system; the precipitation kettle is provided with a precipitation liquid feeding pipeline and a material discharging pipeline, and is connected with the polymer dissolution washing kettle through a polymer discharging pipeline; the separating device is provided with a waste liquid discharging pipeline and a solid discharging port, and is respectively connected with the precipitation kettle and the polymer dissolution washing kettle through a material discharging pipeline and a slurry discharging pipeline. The washing device provided by the utility model can effectively remove impurities such as salts in the polyvinyl butyral resin, has the advantages of less washing times, good washing effect, less waste liquid production and environmental protection.
Description
Technical Field
The utility model belongs to the technical field of polymer purification devices, and particularly relates to a washing device for polyvinyl butyral resin.
Background
Polyvinyl butyral (PVB) resins are polymeric compounds that condense polyvinyl alcohol (PVA) with n-butyraldehyde under acidic conditions. The product index has close relation with the impurity amount of salt, butyraldehyde, emulsifying agent and the like in the polyvinyl butyral resin. To remove these impurities, the current primary method is to wash the polyvinyl butyral resin with deionized water.
The existing technology generally adopts the technology that after polymer is separated out, a large amount of water is used for washing, and the washing technology has long washing period, can generate a large amount of wastewater and pollutes the environment. And after the polymer is precipitated as solid, salts are more difficult to remove in the polymer, the washing effect is poor, and the equipment investment is large.
Disclosure of Invention
In view of the above, the utility model provides a washing device for polyvinyl butyral resin, which can effectively remove impurities such as salts in polyvinyl butyral resin, has the advantages of less washing times, good washing effect, less waste liquid production and environmental protection.
In order to achieve the above object, the present utility model provides a washing apparatus for a polyvinyl butyral resin, comprising:
the polymer dissolution washing kettle is provided with a polymer feeding pipeline, a solvent feeding pipeline, a polymer discharging pipeline and a heating system;
the precipitation kettle is provided with a precipitation liquid feeding pipeline and a material discharging pipeline, and is connected with the polymer dissolution washing kettle through a polymer discharging pipeline;
the separating device is provided with a waste liquid discharging pipeline and a solid discharging port, and is respectively connected with the precipitation kettle and the polymer dissolution washing kettle through a material discharging pipeline and a slurry discharging pipeline.
Preferably, a stirring device is arranged in the polymer dissolution washing kettle.
Preferably, a crushing device is arranged in the precipitation kettle.
Preferably, the precipitation kettle is provided with a cooling mechanism.
Preferably, a stirring device is arranged in the separation device.
Preferably, a solid-liquid separation net is arranged in the separation device.
Preferably, the slurry discharging device further comprises a centrifugal pump which is arranged on the slurry discharging pipeline.
Preferably, the separation device is further provided with a solvent feeding pipe.
Preferably, a temperature measuring mechanism is further arranged on the polymer dissolution washing kettle.
Preferably, valves are provided on each connecting line.
Compared with the prior art, the utility model has the advantages and positive effects that:
according to the polyvinyl alcohol and modified polymer post-treatment device thereof, the polymer dissolution washing kettle is arranged, and the polymer and the solvent are added into the polymer dissolution washing kettle, so that the polymer is washed in a swelling state, the washing effect is improved, the washing times are reduced, and the washing water and the solvent are saved. Meanwhile, the polymer dissolution washing kettle, the precipitation kettle and the separation device are arranged and connected through pipelines to form a circulating system, so that the salt byproduct removal effect is good, and the space and the production time are saved.
Further, through setting up reducing mechanism and cooling mechanism in separating out the cauldron, can also make the particle diameter more even when accelerating to separate out.
Further, the separation device is communicated with the polymer dissolution and washing kettle through a slurry discharging pipeline, materials are directly refluxed into the polymer dissolution and washing kettle for full washing, the operation is simple and convenient, the volatilization of solvents is reduced, and the device is safer and more environment-friendly.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic structural view of a post-treatment apparatus for polyvinyl alcohol and its modified polymer according to the present utility model;
wherein: 1-polymer dissolution washing kettle, 2-polymer feeding pipeline, 3-solvent feeding pipeline, 4-polymer discharging pipeline, 5-heating system, 6-precipitation kettle, 7-precipitation liquid feeding pipeline, 8-temperature measuring mechanism, 9-material discharging pipeline, 10-separating device, 11-waste liquid discharging pipeline, 12-solid discharging port, 13-slurry discharging pipeline, 14-stirring device, 15-crushing device, 16-cooling mechanism, 17-solid-liquid separating net, 18-centrifugal pump and 19-valve.
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the present utility model provides a washing apparatus for polyvinyl butyral resin, comprising:
a polymer dissolution washing kettle 1, wherein a polymer feeding pipeline 2, a solvent feeding pipeline 3, a polymer discharging pipeline 4 and a heating system 5 are arranged on the polymer dissolution washing kettle 1;
a precipitation kettle 6, wherein a precipitation liquid feeding pipeline 7 and a material discharging pipeline 9 are arranged on the precipitation kettle 6, and the precipitation kettle 6 is connected with the polymer dissolution washing kettle 1 through a polymer discharging pipeline 4;
the separation device 10 is provided with a waste liquid discharge pipeline 11 and a solid discharge port 12, and is respectively connected with the precipitation kettle 6 and the polymer dissolution washing kettle 1 through a material discharge pipeline 9 and a slurry discharge pipeline 13.
During operation, the polymer and the solvent respectively enter the polymer dissolution washing kettle from the polymer feeding pipeline and the solvent feeding pipeline, the heating system heats the polymer to enable the polymer to reach a swelling state for washing, after the washing is finished, the polymer is transferred into the precipitation kettle through the polymer discharging pipeline, the precipitation liquid is introduced through the precipitation liquid feeding pipeline, the precipitation of the polymer is promoted, the polymer is further washed, after the material is completely precipitated, the polymer flows into the separating device through the material discharging pipeline for separation, the liquid phase enters the waste liquid system through the waste liquid discharging pipeline, after the waste liquid is discharged, the solvent is introduced again for mixing with the polymer, the polymer is transferred into the polymer dissolution washing kettle again through the slurry discharging pipeline, the polymer is circularly washed, after the washing is complete, the solid-liquid separation is carried out, and finally the obtained finished polymer is discharged from the solid discharging port.
Further, in the present utility model, the stirring device 14 is provided in the polymer dissolution washing vessel 1. In the utility model, the stirring device 14 is arranged in the polymer dissolution washing kettle 1, so that materials can be quickly and uniformly mixed and heated at uniform temperature.
Further, in the present utility model, a pulverizing device 15 is provided in the precipitation tank 6. In the utility model, the crushing device can prevent the polymer from agglomerating, and can make the polymer particles more uniform, thereby facilitating the subsequent drying and simultaneously making the washing more thorough.
Further, in the present utility model, the cooling mechanism 16 is provided on the precipitation tank 6. In the utility model, the cooling mechanism is arranged, so that polymer precipitation can be accelerated.
Further, in the present utility model, the separator 10 is provided with a stirring device 14. In the present utility model, the provision of the stirring device 14 in the separation device 10 allows for rapid solid-liquid separation.
Further, in the present utility model, a solid-liquid separation net 17 is provided in the separation device 10.
Further, in the present utility model, a centrifugal pump 18 is further included, which is provided on the slurry discharging line 13.
Further, in the present utility model, the separation device 10 is further provided with a solvent feed pipe 3.
Further, in the utility model, a temperature measuring mechanism 8 is also arranged on the polymer dissolution washing kettle.
Further, in the present utility model, a valve 19 is provided on each connection line.
The technical solutions provided by the present utility model are described in detail below in conjunction with examples for further illustrating the present utility model, but they should not be construed as limiting the scope of the present utility model.
Example 1
Polyvinyl butyral is injected into the polymer dissolution washing kettle through a polymer feed line, and simultaneously solvent is injected through a solvent feed line (water: alcohol= (5-95): (95-5)). Stirring by a stirrer, and heating by a thermal circulation medium (40-100 ℃) of a jacket; washing for 5-60 min after the polymer completely enters a swelling state; adding water into the precipitation kettle through a precipitation liquid feeding pipeline, opening a cooling mechanism in the precipitation kettle, controlling the medium temperature to be 0-25 ℃, opening a valve on a polymer discharging pipeline to enable materials to flow into the precipitation kettle, and simultaneously opening a crushing device of the precipitation kettle to quickly crush the precipitated polymer to avoid caking; after the materials are completely separated out, a valve on a material discharging pipeline is opened to flow the materials into a separating device, wherein a liquid phase enters a waste liquid system through a waste liquid discharging pipeline through a bottom solid-liquid separation net, after solid-liquid separation, the valve of the bottom waste liquid discharging pipeline is closed, a proper amount of solvent (the proportion is the same as that of a washing kettle) is added through a solvent feeding pipeline of the separating device, a stirring device of the separating device is opened, the materials are changed into slurry again, the slurry is pumped into a polymer dissolution washing kettle through a slurry discharging pipe of the separating device by a centrifugal pump, repeated washing is carried out, and after solid-liquid separation is carried out for the last time, solids are collected through a solid discharging hole of the separating device.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. A washing apparatus for a polyvinyl butyral resin, comprising:
the polymer dissolution washing kettle is provided with a polymer feeding pipeline, a solvent feeding pipeline, a polymer discharging pipeline and a heating system;
the precipitation kettle is provided with a precipitation liquid feeding pipeline and a material discharging pipeline, and is connected with the polymer dissolution washing kettle through a polymer discharging pipeline;
the separating device is provided with a waste liquid discharging pipeline and a solid discharging port, and is respectively connected with the precipitation kettle and the polymer dissolution washing kettle through a material discharging pipeline and a slurry discharging pipeline.
2. The washing device according to claim 1, wherein a stirring device is arranged in the polymer dissolution washing kettle.
3. The washing device according to claim 1, wherein a crushing device is arranged in the precipitation tank.
4. The washing device of claim 1, wherein the precipitation tank is provided with a cooling mechanism.
5. The washing device according to claim 1, wherein a stirring device is provided in the separating device.
6. The washing device according to claim 1, wherein a solid-liquid separation net is provided in the separation device.
7. The washing apparatus of claim 1, further comprising a centrifugal pump disposed on the slurry discharge line.
8. The washing apparatus of claim 1, wherein the separation apparatus is further provided with a solvent feed pipe.
9. The washing device of claim 1, wherein the polymer dissolution washing kettle is further provided with a temperature measuring mechanism.
10. A washing device according to claim 1, wherein a valve is provided in each connection line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321855232.6U CN220328659U (en) | 2023-07-14 | 2023-07-14 | Washing device for polyvinyl butyral resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321855232.6U CN220328659U (en) | 2023-07-14 | 2023-07-14 | Washing device for polyvinyl butyral resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220328659U true CN220328659U (en) | 2024-01-12 |
Family
ID=89446443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321855232.6U Active CN220328659U (en) | 2023-07-14 | 2023-07-14 | Washing device for polyvinyl butyral resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220328659U (en) |
-
2023
- 2023-07-14 CN CN202321855232.6U patent/CN220328659U/en active Active
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