CN209772092U - Novel polyester reaction kettle - Google Patents
Novel polyester reaction kettle Download PDFInfo
- Publication number
- CN209772092U CN209772092U CN201920156505.5U CN201920156505U CN209772092U CN 209772092 U CN209772092 U CN 209772092U CN 201920156505 U CN201920156505 U CN 201920156505U CN 209772092 U CN209772092 U CN 209772092U
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- fixedly connected
- novel polyester
- condenser
- kettle
- reaction kettle
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 44
- 229920000728 polyester Polymers 0.000 title claims abstract description 39
- 238000003756 stirring Methods 0.000 claims abstract description 37
- 238000000926 separation method Methods 0.000 claims abstract description 34
- 238000010992 reflux Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000012856 packing Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 21
- 239000007787 solid Substances 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 208000012839 conversion disease Diseases 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical group CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 14
- 238000005886 esterification reaction Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000002904 solvent Substances 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- -1 chemical engineering Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Landscapes
- Polyesters Or Polycarbonates (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
A novel polyester reaction kettle comprises a kettle body and a reflux separation component; the kettle body comprises a cylinder body and an end enclosure, the upper end of the cylinder body is connected with the end enclosure through a bolt, a jacket layer is arranged on the outer side of the cylinder body, and a stirring paddle is arranged in the cylinder body; the upper end of the seal head is fixedly connected with a rack, the upper end of the rack is fixedly connected with a motor, the motor is fixedly connected with the stirring paddle, and the upper end of the seal head is fixedly connected with the reflux separation assembly; the reflux separation assembly comprises a separation column, a vertical condenser and a horizontal condenser, wherein pall ring packing is filled in the separation column, the upper end of the separation column is fixedly connected with the lower end of the vertical condenser, the upper end of the vertical condenser is fixedly connected with the side end of the horizontal condenser, and the lower end of the horizontal condenser is provided with a water outlet pipe. The polyester reaction kettle is beneficial to improving the polyester reaction rate and the reaction conversion rate, and has the advantages of simple structure, convenience in installation and maintenance and convenience in use.
Description
Technical Field
The utility model relates to a novel polyester reaction kettle belongs to the chemical industry equipment field.
Background
The reaction kettle is a container for physical or chemical reaction, and the heating, evaporation, cooling and low-speed mixing functions required by the process are realized through the structural design and parameter configuration of the container. The reaction kettle is widely applied to pressure vessels for petroleum, chemical engineering, rubber, pesticides, dyes, medicines and foods and is used for completing technological processes of vulcanization, nitration, hydrogenation, alkylation, polymerization, condensation and the like.
In the preparation process of the polyester, the reflux esterification reaction is required to be carried out at the temperature of not less than 200 ℃, the solvent continuously reflows in a reaction kettle in the reaction process, and simultaneously, the moisture of the esterification reaction is required to be removed out of a system so as to accelerate the esterification reaction process and increase the esterification reaction conversion rate. Conventional reaction vessels are used for the polyester reaction and solvent reflux and moisture removal cannot be performed simultaneously, thereby affecting the polyester reaction rate and conversion. Therefore, the novel polyester reaction kettle which can simultaneously carry out solvent reflux and moisture removal has important value.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art exists, provide a novel polyester reation kettle, can realize that solvent backward flow and moisture shift out to go on simultaneously, do benefit to and improve polyester reaction rate and reaction conversion rate, simple structure moreover, the installation is overhauld conveniently, convenient to use.
the utility model provides an above-mentioned technical problem's technical scheme as follows: a novel polyester reaction kettle is characterized by comprising a kettle body and a reflux separation component; the kettle body comprises a barrel body and an end enclosure, the upper end of the barrel body is connected with the end enclosure through a bolt, so that the installation, the overhaul and the disassembly are convenient, a jacket layer is arranged on the outer side of the barrel body, a steam inlet is formed in the lower end of the jacket layer, a steam outlet is formed in the upper end of the jacket layer, the setting of the jacket layer is convenient for heating the interior of the barrel body, the esterification reaction temperature during the preparation of polyester is not less than 200 ℃, steam is introduced into the jacket layer to provide heat for the reaction, a kettle bottom valve is arranged at the lower end of the barrel body, the setting of the kettle bottom valve is convenient for discharging products in the polyester reaction kettle after the reaction is finished, and a;
The upper end of the end socket is provided with a stirring port, the upper end of the stirring paddle penetrates through the stirring port, the upper end of the end socket is fixedly connected with a rack, the upper end of the rack is fixedly connected with a motor, the motor is fixedly connected with the stirring paddle, the upper end of the end socket is provided with a solid feeding port and a liquid feeding port, and the upper end of the end socket is fixedly connected with the backflow separation assembly;
the reflux separation assembly comprises a separation column, a vertical condenser and a horizontal condenser, the lower end of the separation column is fixedly connected with the end enclosure, pall ring fillers are filled in the separation column, the upper end of the separation column is fixedly connected with the lower end of the vertical condenser, the upper end of the vertical condenser is fixedly connected with the side end of the horizontal condenser, and the lower end of the horizontal condenser is provided with a water outlet pipe.
in the esterification reaction process of polyester preparation, a commonly used reflux solvent is n-butyl acetate, water can be generated in the esterification reaction process, under the heating condition, the n-butyl acetate and the water can be gasified and enter a separation column, pall ring fillers are filled in the separation column, the gasified n-butyl acetate can be condensed into liquid through a vertical condenser and flows back to a cylinder, the gasified water can be condensed into liquid after entering a horizontal condenser and is discharged through a water outlet pipe, and the water generated by the reaction is timely extracted, so that the whole chemical reaction can be carried out towards the direction of a product, and the conversion rate is increased. The arrangement of the separation column plays a role in rectification separation, so that mass transfer process of gas rising in the cylinder and liquid flowing back on the pall ring packing can be realized, n-butyl acetate and water can be better separated, a large amount of water is prevented from flowing back into the cylinder again, and a large amount of n-butyl acetate is also prevented from being discharged along with the water; the pall ring is selected as the filler, so that the gas flow resistance is small, the liquid is easy to distribute uniformly, the mass transfer efficiency is high, and the operation elasticity is large; in addition, the vertical condenser and the horizontal condenser are matched, so that the condensing efficiency can be ensured, and the phenomenon that the height of the whole polyester reaction kettle is too high and the installation and the maintenance in a workshop are not facilitated is avoided.
Furthermore, a temperature sensor is arranged in the middle of the cylinder body, and the temperature sensor can be used for measuring the temperature in the polyester reaction kettle at any time, so that the phenomenon that the temperature in the polyester reaction kettle is too high or too low is avoided, and the reaction temperature is controlled better; the upper end of the outer side surface of the cylinder body is provided with a support, and the support is arranged to facilitate the fixation of the polyester reaction kettle.
Further, the inside lower extreme of barrel is equipped with cauldron bottom shaft sleeve, cauldron bottom shaft sleeve with the stirring rake lower extreme cup joints, and the setting of cauldron bottom shaft sleeve can avoid the stirring rake to take place to rock at the stirring in-process, avoids the stirring rake to touch the barrel.
Furthermore, the stirring paddle is a frame type stirring paddle, and a frame type stirrer is more suitable for stirring a large amount of materials and is more suitable for industrial application.
furthermore, a mechanical sealing assembly is arranged at the stirring port, and the mechanical sealing assembly can prevent gasified solvent in the polyester reaction kettle from overflowing from the stirring port, so that material waste and environmental pollution are caused.
Furthermore, a butterfly valve is arranged at the solid feeding port, so that solid raw materials can be added more conveniently, and blockage can be avoided; the liquid feeding port is provided with a plurality of liquid pipelines, the liquid pipelines are provided with metering valves, and the metering valves are convenient for quantitatively feeding liquid raw materials and solvents.
Furthermore, the lower end of the motor is provided with a speed reducer, and the speed reducer is convenient to control the stirring speed.
Furthermore, the upper end of the end socket is provided with a sight glass hole, the upper end of the sight glass hole is provided with a lamp barrel, and the sight glass hole and the lamp barrel are arranged, so that an operator can observe the conditions in the polyester reaction kettle intuitively at any time.
the utility model has the advantages that:
(1) In the esterification reaction process of polyester preparation, the reflux separation component can simultaneously carry out solvent reflux and water extraction, so that the normal reaction can be ensured, the conversion rate can be improved, and the polyester reaction kettle is more beneficial to the preparation of industrial polyester;
(2) The vertical condenser and the horizontal condenser are arranged in a matched manner, so that the condensing efficiency can be ensured, and meanwhile, the height of the whole polyester reaction kettle is proper, and the installation and the maintenance in a workshop are facilitated;
(3) The polyester reaction kettle is more suitable for industrial production, the stirring speed is easy to control, the temperature in the polyester reaction kettle can be conveniently monitored at any time, and material waste and environmental pollution can be avoided.
drawings
FIG. 1 is a schematic structural view of a polyester reaction vessel in the example;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a top view of the closure in the example;
In the figure, 1 cylinder, 2 end sockets, 3 bolts, 4 jacket layers, 5 steam inlets, 6 steam outlets, 7 kettle bottom valves, 8 stirring paddles, 9 stirring ports, 10 frames, 11 motors, 12 solid feed ports, 13 liquid feed ports, 14 separation columns, 15 vertical condensers, 16 horizontal condensers, 17 water outlet pipes, 18 temperature sensors, 19 supports, 20 kettle bottom shaft sleeves, 21 mechanical seal assemblies, 22 butterfly valves, 23 liquid pipelines, 24 metering valves, 25 speed reducers, 26 sight glass holes and 27 lamp tubes.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in the figure, the novel polyester reaction kettle comprises a kettle body and a reflux separation component; the kettle body comprises a barrel body 1 and an end enclosure 2, the upper end of the barrel body 1 is connected with the end enclosure 2 through a bolt 3, a jacket layer 4 is arranged on the outer side of the barrel body 1, a steam inlet 5 is arranged at the lower end of the jacket layer 4, a steam outlet 6 is arranged at the upper end of the jacket layer 4, a kettle bottom valve 7 is arranged at the lower end of the barrel body 1, and a stirring paddle 8 is arranged in the barrel body 1;
The upper end of the seal head 2 is provided with a stirring port 9, the upper end of the stirring paddle 8 penetrates through the stirring port 9, the upper end of the seal head 2 is fixedly connected with a rack 10, the upper end of the rack 10 is fixedly connected with a motor 11, the motor 11 is fixedly connected with the stirring paddle 8, the upper end of the seal head 2 is provided with a solid feeding port 12 and a liquid feeding port 13, and the upper end of the seal head 2 is fixedly connected with the reflux separation assembly;
the reflux separation assembly comprises a separation column 14, a vertical condenser 15 and a horizontal condenser 16, the lower end of the separation column 14 is fixedly connected with the seal head 2, pall ring packing is filled in the separation column 14, the upper end of the separation column 14 is fixedly connected with the lower end of the vertical condenser 15, the upper end of the vertical condenser 15 is fixedly connected with the side end of the horizontal condenser 16, and a water outlet pipe 17 is arranged at the lower end of the horizontal condenser 16.
the middle part of the barrel body 1 is provided with a temperature sensor 18, and the upper end of the outer side surface of the barrel body 1 is provided with a support 19. The lower end in barrel 1 is equipped with cauldron bottom axle sleeve 20, cauldron bottom axle sleeve 20 with 8 lower extremes of stirring rake cup joint. The stirring paddle 8 is a frame type stirring paddle 8. And a mechanical sealing assembly 21 is arranged at the stirring port 9. The solid feed inlet 12 department is equipped with butterfly valve 22, liquid feed inlet 13 is equipped with a plurality of liquid pipeline 23, be equipped with metering valve 24 on the liquid pipeline 23. The lower end of the motor 11 is provided with a speed reducer 25. The upper end of the seal head 2 is provided with a sight glass hole 26, and the upper end of the sight glass hole 26 is provided with a lamp barrel 27.
The esterification reaction process in the preparation of the polyester comprises the following steps: adding required solid raw materials and liquid raw materials into the cylinder body 1 through the solid feeding port 12 and the liquid feeding port 13, and adding required n-butyl acetate solvent; starting a motor 11 for stirring, introducing steam into the jacket layer 4 from a steam inlet 5, heating the cylinder 1, wherein water is generated in the esterification reaction, in the stirring and heating processes, n-butyl acetate and water in the cylinder 1 are gasified, enter a separation column 14, are condensed by a vertical condenser 15, flow back into the cylinder 1 again, and are condensed by a horizontal condenser 16 and discharged through a water outlet pipe 17; the product after the reaction is discharged through a bottom valve 7 of the kettle.
the technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. A novel polyester reaction kettle is characterized by comprising a kettle body and a reflux separation component; the kettle body comprises a barrel body (1) and an end enclosure (2), the upper end of the barrel body (1) is connected with the end enclosure (2) through a bolt (3), a jacket layer (4) is arranged on the outer side of the barrel body (1), a steam inlet (5) is arranged at the lower end of the jacket layer (4), a steam outlet (6) is arranged at the upper end of the jacket layer (4), a kettle bottom valve (7) is arranged at the lower end of the barrel body (1), and a stirring paddle (8) is arranged in the barrel body (1);
The upper end of the seal head (2) is provided with a stirring port (9), the upper end of the stirring paddle (8) penetrates through the stirring port (9), the upper end of the seal head (2) is fixedly connected with a rack (10), the upper end of the rack (10) is fixedly connected with a motor (11), the motor (11) is fixedly connected with the stirring paddle (8), the upper end of the seal head (2) is provided with a solid feeding port (12) and a liquid feeding port (13), and the upper end of the seal head (2) is fixedly connected with the backflow separation assembly;
The reflux separation assembly comprises a separation column (14), a vertical condenser (15) and a horizontal condenser (16), the lower end of the separation column (14) is fixedly connected with the seal head (2), pall ring packing is filled in the separation column (14), the upper end of the separation column (14) is fixedly connected with the lower end of the vertical condenser (15), the upper end of the vertical condenser (15) is fixedly connected with the side end of the horizontal condenser (16), and a water outlet pipe (17) is arranged at the lower end of the horizontal condenser (16).
2. a novel polyester reaction kettle according to claim 1, characterized in that a temperature sensor (18) is arranged in the middle of the cylinder (1), and a support (19) is arranged at the upper end of the outer side surface of the cylinder (1).
3. the novel polyester reaction kettle according to claim 1, wherein a kettle bottom shaft sleeve (20) is arranged at the lower end inside the barrel body (1), and the kettle bottom shaft sleeve (20) is sleeved with the lower end of the stirring paddle (8).
4. A novel polyester reactor as claimed in claim 3 wherein said paddles (8) are gate paddles (8).
5. A novel polyester reactor as claimed in claim 1 wherein a mechanical seal assembly (21) is provided at the stirring port (9).
6. The novel polyester reactor as claimed in claim 1, wherein a butterfly valve (22) is disposed at the solid feeding port (12), a plurality of liquid lines (23) are disposed at the liquid feeding port (13), and a metering valve (24) is disposed on the liquid lines (23).
7. A novel polyester reactor as claimed in claim 1, wherein said motor (11) is provided with a speed reducer (25) at its lower end.
8. The novel polyester reaction kettle according to claim 1, wherein a sight glass hole (26) is formed at the upper end of the end socket (2), and a lamp tube (27) is arranged at the upper end of the sight glass hole (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920156505.5U CN209772092U (en) | 2019-01-29 | 2019-01-29 | Novel polyester reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920156505.5U CN209772092U (en) | 2019-01-29 | 2019-01-29 | Novel polyester reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209772092U true CN209772092U (en) | 2019-12-13 |
Family
ID=68794293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920156505.5U Active CN209772092U (en) | 2019-01-29 | 2019-01-29 | Novel polyester reaction kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209772092U (en) |
-
2019
- 2019-01-29 CN CN201920156505.5U patent/CN209772092U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A new polyester reactor Effective date of registration: 20220627 Granted publication date: 20191213 Pledgee: Rizhao Bank Co.,Ltd. Yantai Zhifu sub branch Pledgor: LAIYANG HONGAN CHEMICAL Co.,Ltd. Registration number: Y2022980009131 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20191213 Pledgee: Rizhao Bank Co.,Ltd. Yantai Zhifu sub branch Pledgor: LAIYANG HONGAN CHEMICAL Co.,Ltd. Registration number: Y2022980009131 |