CN220737557U - Steam kettle washing system for experimental biodegradation polymerization device - Google Patents
Steam kettle washing system for experimental biodegradation polymerization device Download PDFInfo
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- CN220737557U CN220737557U CN202322293993.3U CN202322293993U CN220737557U CN 220737557 U CN220737557 U CN 220737557U CN 202322293993 U CN202322293993 U CN 202322293993U CN 220737557 U CN220737557 U CN 220737557U
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- kettle
- polycondensation kettle
- steam
- polycondensation
- biodegradation
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- 238000006065 biodegradation reaction Methods 0.000 title claims abstract description 10
- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 10
- 238000005406 washing Methods 0.000 title abstract description 9
- 238000006068 polycondensation reaction Methods 0.000 claims abstract description 50
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 abstract description 14
- 238000002474 experimental method Methods 0.000 abstract description 5
- 230000007062 hydrolysis Effects 0.000 abstract description 3
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 3
- 238000011112 process operation Methods 0.000 abstract description 3
- UQLDLKMNUJERMK-UHFFFAOYSA-L di(octadecanoyloxy)lead Chemical compound [Pb+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O UQLDLKMNUJERMK-UHFFFAOYSA-L 0.000 abstract description 2
- UVCJGUGAGLDPAA-UHFFFAOYSA-N ensulizole Chemical compound N1C2=CC(S(=O)(=O)O)=CC=C2N=C1C1=CC=CC=C1 UVCJGUGAGLDPAA-UHFFFAOYSA-N 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 229920009537 polybutylene succinate adipate Polymers 0.000 abstract description 2
- 229920001896 polybutyrate Polymers 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000011160 research Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000006136 alcoholysis reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Polyesters Or Polycarbonates (AREA)
Abstract
The utility model discloses a steam kettle washing system for an experimental biodegradation polymerization device, which relates to the technical field of cleaning a polycondensation kettle and aims to solve the problem that residual materials with higher viscosity cannot be discharged completely and are difficult to clean after the discharge of the polycondensation kettle is finished. According to the special physicochemical properties of PBAT, PBS, PBST, PBSA, such as low melting point (110-130 ℃), easy hydrolysis and the like, the utility model reduces the experiment and research cost by steam washing the kettle, saves raw materials, can clean the polycondensation kettle and each pipeline, and improves the safety of process operation.
Description
Technical Field
The utility model relates to the technical field of cleaning of polycondensation kettles, in particular to a steam kettle cleaning system for an experimental biodegradation polymerization device.
Background
Because the intrinsic viscosity of the biodegradable material is higher, part of the material remains in the polycondensation kettle after the discharge of the polycondensation kettle is finished and cannot be discharged completely, the viscosity of the residual material is higher (1.6-2.0 dL/g), and BDO alcoholysis material is generally adopted to wash the kettle at present in order to ensure that the residual material does not influence the next experiment. After each experiment is finished, about 15-30 kg of BDO is consumed, the temperature is controlled at 200-240 ℃, the BDO is expensive, the experiment cost is high, and the BDO after the kettle is washed can not be recycled. When the kettle is washed and discharged, a large amount of BDO steam and THF smoke can be generated at a high temperature to pollute the environment, and the problem of potential safety hazard exists.
Disclosure of Invention
In order to solve the problems, namely the problems proposed by the background art, the utility model provides a steam kettle washing system for an experimental biodegradation polymerization device, which comprises a polycondensation kettle, wherein one side of the top end of the polycondensation kettle is connected with a steam public workshop through a second stop valve, a Y-shaped filter and a first stop valve in sequence, and one side of the bottom end of the polycondensation kettle is connected with a heat medium pump through an electric heater.
The utility model is further provided with: the top of the polycondensation kettle is provided with a stirrer, the other side of the top of the polycondensation kettle is provided with a pressure gauge, and the bottom of the polycondensation kettle is provided with a casting belt head through a polycondensation kettle bottom valve.
The utility model is further provided with: the outer walls of the polycondensation kettle, the polycondensation kettle bottom valve and the casting belt head are provided with jackets.
The utility model is further provided with: a steam trap is connected in parallel between the second stop valve and the Y-shaped filter, and a ball valve is arranged on one side of the steam trap.
The beneficial technical effects of the utility model are as follows: according to the special physicochemical properties of PBAT, PBS, PBST, PBSA, such as low melting point (110-130 ℃), easy hydrolysis and the like, the utility model reduces the experiment and research cost by steam washing the kettle, saves raw materials, can clean the polycondensation kettle and each pipeline, and improves the safety of process operation.
Drawings
Fig. 1 shows a schematic flow diagram of a steam autoclave.
Reference numerals: 1. a first stop valve, 2, a Y-shaped filter, 3, a second stop valve, 4, a steam trap, 5, a ball valve, 6, a pressure gauge, 7, a polycondensation kettle, 8, a polycondensation kettle bottom valve, 9, a casting belt head, 10, a stirrer, 11, a steam public workshop, 12, an electric heater, 13 and a heat medium pump.
Detailed Description
Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.
The utility model provides a steam kettle washing system for an experimental biodegradation polymerization device, which comprises a polycondensation kettle 7, wherein one side of the top end of the polycondensation kettle 7 is sequentially connected with a steam public workshop 11 through a second stop valve 3, a Y-shaped filter 2 and a first stop valve 1, steam is mainly conveyed by the steam public workshop 11, the Y-shaped filter 2 plays a role in filtering, one side of the bottom end of the polycondensation kettle 7 is connected with a heating medium pump 13 through an electric heater 12, the electric heater 12 is a device for controlling the temperature of the polycondensation kettle 7, the heating medium pump 13 is used for circulating heating medium, and the temperatures of the polycondensation kettle 7, a polycondensation kettle bottom valve 8 and a casting belt head 9 are ensured.
The agitator 10 is installed on the top of polycondensation kettle 7, and agitator 10 is in order to stir the material in the polycondensation kettle 7, guarantees the even reaction of material. The other side of the top end of the polycondensation kettle 7 is provided with a pressure gauge 6, and the bottom end of the polycondensation kettle 7 is provided with a casting belt head 9 through a polycondensation kettle bottom valve 8 for discharging materials. The outer walls of the polycondensation kettle 7, the polycondensation kettle bottom valve 8 and the casting belt head 9 are provided with jackets.
A steam trap 4 is connected in parallel between the second stop valve 3 and the Y-shaped filter 2, a ball valve 5 is arranged on one side of the steam trap 4, and the steam trap 4 and the ball valve 5 are arranged to ensure that the steam condensate water is discharged from the clean steam public workshop 11 to the pipeline of the second stop valve 3.
The process operation method comprises the following steps:
1. after the polycondensation reaction is finished, stopping the stirrer 10, after the discharge of the polycondensation kettle 7 is finished, circulating a heating medium through a heating medium pump 13 and an electric heater 12 in jackets of the polycondensation kettle 7, the polycondensation bottom valve 8 and the casting belt head 9 to control the constant temperature of the polycondensation kettle 7 to 230 ℃, and opening the polycondensation kettle bottom valve 8.
2. Confirming that the second stop valve 3 is in a closed state, opening the ball valve 5, slightly opening the first stop valve 1 of the steam public workshop 11, enabling steam to flow to the steam trap 4 through the Y-shaped filter 2, observing the water yield of the ball valve 5, and evacuating residual condensed water in the steam pipeline.
3. The second stop valve 3 is slowly opened, the air outlet quantity of the pressure gauge 6 and the casting belt head 9 is observed, the pressure gauge 6 is guaranteed to be normal pressure, a small amount of steam is discharged from the casting belt head 9, the pressure of the polycondensation kettle 7 is prevented from being suppressed, and the polycondensation kettle 7 and the stirrer 10 are damaged.
4. And during the kettle washing, the hydrolysis material intermittently flows out from the casting belt head 9, and after the kettle is washed for 3 hours, the casting belt head 9 outflow material is weighed, and the weight of the kettle washing material and the weight of the finished product material reach theoretical discharge values. The strip head 9 to be cast is clean after the kettle is cleaned, and no material flows out and a trace of steam flows out.
5. The second stop valve 3 is closed, the first stop valve 1 is closed, the ball valve 5 is closed after half an hour, and the steam pressure between the first stop valve 1 and the second stop valve 3 is prevented from being too high, so that the ball valve 5 is prevented from being damaged.
While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model, and in particular, the technical features set forth in the various embodiments may be combined in any manner so long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
In the description of the present utility model, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate a direction or a positional relationship, are based on the direction or the positional relationship shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus/means that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus/means.
Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.
Claims (4)
1. A steam kettle cleaning system for experimental biodegradation polymerization device comprises a polycondensation kettle (7), and is characterized in that: the utility model discloses a polycondensation kettle, including polycondensation kettle (7), second stop valve (3), Y filter (2) and first stop valve (1), polycondensation kettle (7) top one side is connected with steam public workshop (11) through second stop valve (3), polycondensation kettle (7) bottom one side is connected with heat medium pump (13) through electric heater (12).
2. A steam autoclave system for an experimental biodegradation polymerization device as claimed in claim 1, characterized in that: the top of polycondensation kettle (7) is installed agitator (10), pressure gauge (6) are installed to polycondensation kettle (7) top opposite side, polycondensation kettle (7) bottom is installed through polycondensation kettle bottom valve (8) and is cast tape head (9).
3. A steam autoclave system for an experimental biodegradation polymerization device as claimed in claim 2, characterized in that: the outer walls of the polycondensation kettle (7), the polycondensation kettle bottom valve (8) and the casting belt head (9) are provided with jackets.
4. A steam autoclave system for an experimental biodegradation polymerization device as claimed in claim 1, characterized in that: a steam trap (4) is connected in parallel between the second stop valve (3) and the Y-shaped filter (2), and a ball valve (5) is arranged on one side of the steam trap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322293993.3U CN220737557U (en) | 2023-08-25 | 2023-08-25 | Steam kettle washing system for experimental biodegradation polymerization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322293993.3U CN220737557U (en) | 2023-08-25 | 2023-08-25 | Steam kettle washing system for experimental biodegradation polymerization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220737557U true CN220737557U (en) | 2024-04-09 |
Family
ID=90554526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322293993.3U Active CN220737557U (en) | 2023-08-25 | 2023-08-25 | Steam kettle washing system for experimental biodegradation polymerization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220737557U (en) |
-
2023
- 2023-08-25 CN CN202322293993.3U patent/CN220737557U/en active Active
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