CN220143397U - Pilot scale reactor for preparing polyester polyol - Google Patents
Pilot scale reactor for preparing polyester polyol Download PDFInfo
- Publication number
- CN220143397U CN220143397U CN202321662983.6U CN202321662983U CN220143397U CN 220143397 U CN220143397 U CN 220143397U CN 202321662983 U CN202321662983 U CN 202321662983U CN 220143397 U CN220143397 U CN 220143397U
- Authority
- CN
- China
- Prior art keywords
- annular
- cauldron
- motor
- polyester polyol
- kettle body
- 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.)
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Links
- 229920005906 polyester polyol Polymers 0.000 title claims abstract description 23
- 238000011020 pilot scale process Methods 0.000 title claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 27
- 238000002360 preparation method Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 239000002994 raw material Substances 0.000 abstract description 11
- 239000000203 mixture Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
Landscapes
- Polyesters Or Polycarbonates (AREA)
Abstract
The utility model discloses a pilot scale kettle for preparing polyester polyol, which comprises a kettle body, wherein a stirring shaft is arranged in the kettle body, a first motor for driving the stirring shaft to rotate is arranged on the kettle body, a plurality of pairs of first stirring rods are arranged on the stirring shaft from top to bottom, an annular block is arranged at the top of the kettle body, an annular chute is concavely arranged on the outer wall of the annular block, an annular sliding block which is in matched sliding connection with the annular chute is convexly arranged on the inner wall of the kettle body, a pair of vertical rods are fixed on the bottom surface of the annular block, a plurality of second stirring rods are convexly arranged on the end surface of the vertical rods, facing the stirring shaft, of the annular block, annular teeth are convexly arranged on the inner wall of the annular block, a gear meshed with the annular teeth is arranged in the kettle body, a second motor is fixed on the kettle body, and the output end of the second motor extends into the kettle body and is connected with the gear to drive the gear to rotate. This pilot scale cauldron has improved the homogeneity of the mixture of raw materials through the structure cooperation, has improved the efficiency that the raw materials mixes, improves the efficiency of reaction between the raw materials.
Description
Technical Field
The utility model relates to the technical field of polyester polyol production, in particular to a pilot scale reactor for preparing polyester polyol.
Background
As is well known, a pilot reactor is a reaction vessel, in which an esterification polycondensation reaction is performed during the production of polyester polyol, a polybasic acid and a polyhydric alcohol are added into the reaction vessel, the mixture is heated to 80-90 ℃ by heat conduction oil, and the mixture is stirred and mixed in a sealed manner, and the slurry after the mixing is subjected to the next process.
Through retrieval, the utility model patent with the Chinese patent number of CN201920530973.4 discloses a polyester polyol efficient reaction kettle, which comprises a shell, a reaction tank, a stirring shaft, a YS motor, a charging port and a control electric box, wherein when the polyester polyol efficient reaction kettle is used, the stirring shaft and the stirring blade inside the reaction tank are driven to rotate through the YS motor, raw materials inside the reaction tank are stirred through transverse rotation of the stirring blade, and the rotation convenience of the stirring blade is single, so that the reaction efficiency of the raw materials inside is influenced.
Disclosure of Invention
The utility model aims to provide a pilot scale reactor for preparing polyester polyol, which overcomes the defects in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the embodiment of the utility model discloses a pilot scale kettle for preparing polyester polyol, which comprises a kettle body, wherein a stirring shaft is arranged in the kettle body, a first motor for driving the stirring shaft to rotate is arranged on the kettle body, and a plurality of pairs of first stirring rods are arranged on the stirring shaft from top to bottom, and the pilot scale kettle is characterized in that: the utility model discloses a kettle, including the internal top of cauldron, the internal top of cauldron is equipped with annular piece, the outer wall epirelief of annular piece is equipped with annular spout, the internal wall epirelief of cauldron is equipped with the annular slider with annular spout cooperation sliding connection, the bottom surface of annular piece is fixed with a pair of montant, a pair of montant symmetry sets up in a pair of first puddler both sides, the montant is equipped with a plurality of second puddlers towards the terminal surface epirelief of (mixing) shaft, a plurality of the second puddler evenly sets up between upper and lower two adjacent first puddlers, the protruding ring tooth that is equipped with on the inner wall of annular piece, be equipped with the gear with ring tooth meshing on the cauldron body, be fixed with the second motor on the cauldron body, the output of second motor extends to the internal and gear connection of cauldron and drive gear rotation.
Preferably, in the pilot scale kettle for preparing polyester polyol, an annular sliding rail coaxially arranged with the annular sliding groove is arranged on the bottom surface in the kettle body, and the bottom end of the vertical rod is in matched sliding connection with the annular sliding rail.
Preferably, in the pilot plant for producing a polyester polyol, the driving direction of the first motor is opposite to the driving direction of the second motor.
Preferably, in the pilot plant reactor for preparing polyester polyol, the annular block, the annular chute and the stirring shaft are all coaxially arranged.
Preferably, in the pilot-plant reactor for preparing polyester polyol, the gear is fixedly sleeved at the output end of the second motor.
Compared with the prior art, the utility model has the advantages that:
this pilot scale cauldron realizes first puddler and the opposite rotation of second puddler through the structure cooperation to drive the polyester polyol opposite rotation in the jar and mix, improved the homogeneity of the mixture of raw materials, improved the efficiency that the raw materials mixed, improved the efficiency of reaction between the raw materials.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments described in the present utility model, and that no inventive effort is made to obtain other drawings from these drawings by a person skilled in the art.
FIG. 1 is a schematic diagram showing the structure of a pilot plant reactor for producing a polyester polyol according to an embodiment of the present utility model.
Detailed Description
The following detailed description of the technical solutions according to the embodiments of the present utility model will be given with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, 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.
Referring to fig. 1, the pilot scale kettle for preparing polyester polyol in this embodiment comprises a kettle body 1, a stirring shaft 2 is arranged in the kettle body 1, a first motor 3 for driving the stirring shaft 2 to rotate is arranged on the kettle body 1, a plurality of pairs of first stirring rods 4 are arranged on the stirring shaft 2 from top to bottom, an annular block 5 is arranged at the inner top of the kettle body 1, an annular sliding groove 6 is concavely arranged on the outer wall of the annular block 5, an annular sliding block 7 matched with the annular sliding groove 6 in sliding connection is convexly arranged on the inner wall of the kettle body 1, a pair of vertical rods 8 are fixed on the bottom surface of the annular block 5, the pair of vertical rods 8 are symmetrically arranged on two sides of the pair of first stirring rods 4, a plurality of second stirring rods 9 are convexly arranged on the end face of the vertical rods 8 facing the stirring shaft 2, a plurality of second stirring rods 9 are uniformly arranged between the upper and lower adjacent two first stirring rods 4, annular teeth 10 are convexly arranged on the inner wall of the annular block 5, a gear 11 meshed with the annular teeth 10 is arranged in the kettle body 1, a second motor 12 is fixedly arranged on the kettle body 1, and the output end of the second motor 12 extends to the kettle body 1 and is connected with the gear 11 in a rotary driving mode.
Further, the inner bottom surface of the kettle body 1 is provided with an annular sliding rail 13 coaxially arranged with the annular sliding groove 6, and the bottom end of the vertical rod 8 is matched and slidably connected with the annular sliding rail 13.
Further, the driving direction of the first motor 3 is opposite to the driving direction of the second motor 12.
Further, the annular block 5, the annular chute 6 and the stirring shaft 2 are all coaxially arranged.
Further, the gear 11 is fixedly sleeved at the output end of the second motor 12.
In this technical scheme, this pilot scale cauldron utilizes the second motor to drive the gear rotation, and the annular tooth of being connected with the gear engagement drives the annular piece and follows the ring channel rotatory, drives the second puddler with montant rigid coupling rotatory, because first motor and second motor counter-rotation realize first puddler and second puddler counter-rotation promptly to drive the polyester polyol counter-rotation in the jar and mix, improved the homogeneity of the mixture of raw materials, improved the efficiency of raw materials mixture, improved the efficiency of reaction between the raw materials.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is merely exemplary of the utility model and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the utility model, and it is intended that the utility model also be limited to the specific embodiments shown.
Claims (5)
1. The utility model provides a pilot scale cauldron is used in polyester polyol preparation, includes the cauldron body, the internal (mixing) shaft that is equipped with of cauldron, be equipped with the rotatory first motor of drive (mixing) shaft on the cauldron body, be equipped with many pairs of first puddlers from last down on the (mixing) shaft, its characterized in that: the utility model discloses a kettle, including the internal top of cauldron, the internal top of cauldron is equipped with annular piece, the outer wall epirelief of annular piece is equipped with annular spout, the internal wall epirelief of cauldron is equipped with the annular slider with annular spout cooperation sliding connection, the bottom surface of annular piece is fixed with a pair of montant, a pair of montant symmetry sets up in a pair of first puddler both sides, the montant is equipped with a plurality of second puddlers towards the terminal surface epirelief of (mixing) shaft, a plurality of the second puddler evenly sets up between upper and lower two adjacent first puddlers, the protruding ring tooth that is equipped with on the inner wall of annular piece, be equipped with the gear with ring tooth meshing on the cauldron body, be fixed with the second motor on the cauldron body, the output of second motor extends to the internal and gear connection of cauldron and drive gear rotation.
2. The pilot reactor for producing polyester polyol according to claim 1, wherein: the bottom surface in the cauldron body is equipped with the annular slide rail that sets up with annular spout coaxial, the bottom and the annular slide rail cooperation sliding connection of montant.
3. The pilot reactor for producing polyester polyol according to claim 1, wherein: the driving direction of the first motor is opposite to the driving direction of the second motor.
4. The pilot reactor for producing polyester polyol according to claim 1, wherein: the annular block, the annular chute and the stirring shaft are all coaxially arranged.
5. The pilot reactor for producing polyester polyol according to claim 1, wherein: the gear is fixedly sleeved at the output end of the second motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321662983.6U CN220143397U (en) | 2023-06-28 | 2023-06-28 | Pilot scale reactor for preparing polyester polyol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321662983.6U CN220143397U (en) | 2023-06-28 | 2023-06-28 | Pilot scale reactor for preparing polyester polyol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220143397U true CN220143397U (en) | 2023-12-08 |
Family
ID=89009999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321662983.6U Active CN220143397U (en) | 2023-06-28 | 2023-06-28 | Pilot scale reactor for preparing polyester polyol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220143397U (en) |
-
2023
- 2023-06-28 CN CN202321662983.6U patent/CN220143397U/en active Active
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| GR01 | Patent grant |