CN213254387U - Esterification system for para-ester production - Google Patents
Esterification system for para-ester production Download PDFInfo
- Publication number
- CN213254387U CN213254387U CN202021391881.1U CN202021391881U CN213254387U CN 213254387 U CN213254387 U CN 213254387U CN 202021391881 U CN202021391881 U CN 202021391881U CN 213254387 U CN213254387 U CN 213254387U
- Authority
- CN
- China
- Prior art keywords
- end cover
- pipe
- feeding
- tank
- support
- 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.)
- Expired - Fee Related
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- 238000005886 esterification reaction Methods 0.000 title claims abstract description 17
- 230000032050 esterification Effects 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000003756 stirring Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 10
- 238000005485 electric heating Methods 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 abstract description 6
- 239000001117 sulphuric acid Substances 0.000 abstract description 4
- 235000011149 sulphuric acid Nutrition 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 2
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000001754 anti-pyretic effect Effects 0.000 description 1
- 239000002221 antipyretic Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to an esterification system for counterpointing ester production, which comprises a bracket, the support upper end sets up the retort, retort upper end flange joint has first end cover, the vertical first inlet pipe that is provided with of first end cover right-hand member, first inlet pipe upper end cover is equipped with the second end cover, first end cover middle part upper end is provided with the support, be provided with actuating mechanism on the support, actuating mechanism's power output shaft is vertical to link up in the retort downwards, actuating mechanism's the coaxial fixed (mixing) shaft that is provided with of power output shaft lower extreme, the (mixing) shaft evenly is provided with multiunit stirring vane along the axial, the support left side is provided with sulphuric acid feed mechanism, the retort inner wall is provided with heating mechanism, the vertical blow off pipe that is. The utility model discloses isolated operating personnel during the unloading of well sulphuric acid feed mechanism has reduced operating personnel's risk.
Description
Technical Field
The utility model relates to a counterpoint ester production facility field especially relates to an esterification system for counterpoint ester production.
Background
The para-ester is prepared by reacting antipyretic ice as an initial raw material with chlorosulfonic acid, sulfonating, hydrolyzing, and precipitating to separate sulfonyl chloride; reducing sulfonyl chloride under the action of sodium pyrosulfite to generate sodium sulfonyl; condensing the sodium sulfonyl into sulfonyl alcohol under the action of ethylene oxide; the p-ester is obtained by heating, hydrolyzing, esterifying and drying the sulfonyl alcohol under the action of sulfuric acid, wherein the esterification reaction is carried out under the catalysis of the sulfuric acid in an environment of 150-170 ℃, acetic acid gas is generated during the reaction, and the flow size needs to be paid attention to when concentrated sulfuric acid is put in the reaction to avoid people from being splashed, so that an operator needs to carefully inject the sulfuric acid when putting down the sulfuric acid, the operation requirement is high, and certain danger exists, and therefore, the development of an esterification system for producing the p-ester with a sulfuric acid feeding mechanism is particularly necessary.
Disclosure of Invention
An object of the utility model is to provide a system of esterifying for counterpointing ester production has sulphuric acid unloading mechanism.
The technical scheme is as follows:
an esterification system for aligning ester production comprises a bracket, a reaction tank is arranged at the upper end of the bracket, a first end cover is connected to the upper end of the reaction tank through a flange, a first feeding pipe is vertically arranged at the right end of the first end cover, a second end cover is arranged on the upper end of the first feeding pipe, a support is arranged at the upper end of the middle part of the first end cover, a driving mechanism is arranged on the support, a power output shaft of the driving mechanism vertically penetrates into the reaction tank downwards, a stirring shaft is coaxially and fixedly arranged at the lower end of the power output shaft of the driving mechanism, a plurality of groups of stirring blades are axially and uniformly arranged on the stirring shaft, a sulfuric acid feeding mechanism is arranged at the left side of the support and comprises a feeding tank, a feeding port is arranged at the upper end of the feeding tank, a third end cover is arranged on the upper end of the feeding port, the horizontal ring pipe that is provided with of first end cover below, a plurality of second through-holes have evenly been seted up to the ring pipe lower extreme, and the unloading pipe link up the ring intraduct from the ring pipe upper end, and the support left side sets up the air pump, and the left end of air pump is provided with the outlet duct, and inside the inlet tank was link up from the inlet tank up end to the outlet duct, the retort inner wall was provided with heating mechanism, and the vertical blow off pipe that is provided with of retort lower extreme is provided with first switch on the blow off pipe.
Preferably, the stirring shaft and the stirring blades are made of polytetrafluoroethylene.
Preferably, the feeding tank is made of glass materials.
Preferably, the side wall of the feeding tank is provided with scales.
Preferably, the second switch is an electric butterfly valve.
Preferably, the heating mechanism comprises a plurality of groups of electric heating plates which are uniformly arranged on the inner wall of the reaction tank from top to bottom.
Has the advantages that:
the utility model discloses isolated operating personnel during the unloading of well sulphuric acid feed mechanism has reduced operating personnel's risk.
Drawings
FIG. 1 is a schematic diagram of an esterification system for producing para-ester in the present invention,
in the figure: 1-support, 2-first mounting plate, 3-reaction tank, 4-first end cover, 5-first feeding pipe, 6-second end cover, 7-support, 8-driving mechanism, 9-stirring shaft, 10-stirring blade, 11-feeding tank, 12-third end cover, 13-discharging pipe, 14-second switch, 15-annular pipe, 16-air pump, 17-air outlet pipe, 18-electric heating plate, 19-sewage discharge pipe and 20-first switch.
Detailed Description
The present invention will be further described with reference to the following specific embodiments, as shown in fig. 1: an esterification system for aligning ester production comprises a bracket 1, a first mounting plate 2 is horizontally arranged at the lower end of the bracket 1, a first through hole is vertically arranged on the first mounting plate 2, the first mounting plate 2 and the first through hole are conveniently arranged to be equal to the fixation of the bracket 1, a reaction tank 3 with an opening at the upper end is arranged at the upper end of the bracket 1, a first end cover 4 is connected with the upper end of the reaction tank 3 in a flange manner, a first feeding pipe 5 is vertically arranged at the right end of the first end cover 4, a second end cover 6 is arranged at the upper end cover of the first feeding pipe 5, a support 7 is arranged at the upper end of the middle part of the first end cover 4, a driving mechanism 8 is arranged on the support 7, the driving mechanism 8 comprises a driving motor, a power output shaft of the driving mechanism 8 vertically penetrates into the reaction tank 3 downwards, a stirring shaft 9 is coaxially and fixedly arranged at the lower, the stirring shaft 9 and the stirring blades 10 are made of polytetrafluoroethylene, the polytetrafluoroethylene has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, and is almost insoluble in all solvents,
a sulfuric acid feeding mechanism is arranged on the left side of the support 7 and comprises a feeding tank 11, a feeding port is formed in the upper end of the feeding tank 11, a third end cover 12 is arranged on the upper cover of the feeding port, the feeding tank 11 is made of glass and transparent, so that an operator can observe the sulfuric acid capacity in the feeding tank 11 conveniently, scales are arranged on the side wall of the feeding tank 11, a discharging pipe 13 is vertically arranged at the lower end of the feeding tank 11, the discharging pipe 13 penetrates into the reaction tank 3 downwards, a second switch 14 is arranged on the part, above the first end cover 4, of the discharging pipe 13, the second switch 14 is an electric butterfly valve, the second switch 14 controls the opening and closing of the discharging pipe 13, an annular pipe 15 is horizontally arranged below the first end cover 4, the annular pipe 15 is coaxially arranged with the stirring shaft 9 and is located above the stirring blades 10, a plurality of second through holes are uniformly formed in the lower end of the annular pipe 15, and the discharging pipe 13 penetrates, an air pump 16 is arranged on the left side of the support 7, and the air pump 16 is not described in detail in the prior art; the left end of the air pump 16 is provided with an air outlet pipe 17, and the air outlet pipe 17 penetrates into the feeding tank 11 from the upper end face of the feeding tank 11.
The inner wall of the reaction tank 3 is provided with a heating mechanism, the heating mechanism comprises a plurality of groups of electric heating plates 18 which are uniformly arranged on the inner wall of the reaction tank 3 from top to bottom, and the electric heating plates 18 are the prior art and are not described again; the electric heating plate 18 heats the interior of the reaction tank 3, the lower end of the reaction tank 3 is vertically provided with a sewage discharge pipe 19, the sewage discharge pipe 19 is provided with a first switch 20, the first switch 20 is an electric butterfly valve, the first switch 20 controls the opening and closing of the sewage discharge pipe 19,
the specific working process is as follows: the method comprises the steps of starting an electric heating plate 18, closing a first switch 20 and a second switch 14, opening a second end cover 6, putting raw materials into a reaction tank 3 from a first feeding pipe 5, closing the second end cover 6, opening a third end cover 12, pouring sulfuric acid into a feeding tank 11 by referring to scale marks, closing the third end cover 12, opening the second switch 14, enabling the sulfuric acid to enter a ring pipe 15 from a discharging pipe 13, enabling the sulfuric acid to flow down from a second through hole at the lower end of the ring pipe 15, starting an air pump 16 to inflate the feeding tank 11, completely discharging the sulfuric acid in the ring pipe 15 under the pressure of gas, avoiding influencing esterification reaction due to incomplete discharging of the sulfuric acid, starting a driving mechanism 8, enabling the driving mechanism 8 to drive a stirring shaft 9 to rotate, and enabling stirring blades 10 to stir the materials in the reaction tank 3 to generate esterification reaction.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (6)
1. An esterification system for para-ester production, comprising: the device comprises a bracket, a reaction tank is arranged at the upper end of the bracket, a first end cover is connected to the upper end of the reaction tank through a flange, a first feeding pipe is vertically arranged at the right end of the first end cover, a second end cover is arranged on the upper end of the first end cover, a support is arranged at the upper end of the middle part of the first end cover, a driving mechanism is arranged on the support, a power output shaft of the driving mechanism vertically penetrates into the reaction tank downwards, a stirring shaft is coaxially and fixedly arranged at the lower end of the power output shaft of the driving mechanism, a plurality of groups of stirring blades are uniformly arranged on the stirring shaft along the axial direction, a sulfuric acid feeding mechanism is arranged at the left side of the support and comprises a feeding tank, a feeding port is formed in the upper end of the feeding tank, a third end cover is arranged on the upper end of the feeding port, a discharging pipe, a plurality of second through-holes have evenly been seted up to the ring pipe lower extreme, and the unloading pipe link up the ring intraduct from the ring pipe upper end, and the support left side sets up the air pump, and the left end of air pump is provided with the outlet duct, and inside the inlet tank was link up to the inlet tank from the inlet tank up end to the outlet duct, the retort inner wall was provided with heating mechanism, and the vertical blow off pipe that is provided with of retort lower extreme is provided with first switch on the blow off pipe.
2. An esterification system for the production of para-esters, as claimed in claim 1, wherein: the stirring shaft and the stirring blades are made of polytetrafluoroethylene.
3. An esterification system for the production of para-esters, as claimed in claim 1, wherein: the feeding tank is made of glass materials.
4. An esterification system for the production of para-esters, as claimed in claim 1, wherein: the side wall of the feeding tank is provided with scales.
5. An esterification system for the production of para-esters, as claimed in claim 1, wherein: the second switch is an electric butterfly valve.
6. An esterification system for the production of para-esters, as claimed in claim 1, wherein: the heating mechanism comprises a plurality of groups of electric heating plates which are uniformly arranged on the inner wall of the reaction tank from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021391881.1U CN213254387U (en) | 2020-07-15 | 2020-07-15 | Esterification system for para-ester production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021391881.1U CN213254387U (en) | 2020-07-15 | 2020-07-15 | Esterification system for para-ester production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213254387U true CN213254387U (en) | 2021-05-25 |
Family
ID=75959718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021391881.1U Expired - Fee Related CN213254387U (en) | 2020-07-15 | 2020-07-15 | Esterification system for para-ester production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213254387U (en) |
-
2020
- 2020-07-15 CN CN202021391881.1U patent/CN213254387U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210525 |