CN212119944U - Reaction kettle for producing acetyl n-propanol - Google Patents
Reaction kettle for producing acetyl n-propanol Download PDFInfo
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- CN212119944U CN212119944U CN202020140482.1U CN202020140482U CN212119944U CN 212119944 U CN212119944 U CN 212119944U CN 202020140482 U CN202020140482 U CN 202020140482U CN 212119944 U CN212119944 U CN 212119944U
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Abstract
The utility model belongs to the technical field of acetyl normal propyl alcohol production facility, concretely relates to reation kettle is used in production of acetyl normal propyl alcohol. The reaction kettle for producing the n-propyl acetyl alcohol comprises a kettle body and a stirring shaft introduced into the kettle body, wherein an air guide cavity is formed in the stirring shaft, the upper end of the stirring shaft is respectively communicated with a first air inlet pipe and a second air inlet pipe, a stirring paddle is arranged at the bottom of the stirring shaft, an air outlet hole communicated with the air guide cavity is formed in the stirring paddle, a frozen brine pipeline is arranged on the outer wall of the kettle body, and the frozen brine pipeline consists of the outer wall of the kettle body and a channel shell fixed on the outer wall of the kettle body. The gas-state raw materials are directly guided into the kettle body through the stirring paddle air outlet through the stirring shaft air guide cavity, so that the gas-liquid raw materials can be mixed more uniformly; the outer wall of the kettle body is directly arranged on the frozen brine pipeline, and the frozen brine pipeline is in direct contact with the outer wall of the kettle body, so that the reaction temperature is easier to control, and the reaction kettle is more stable and efficient.
Description
Technical Field
The utility model belongs to the technical field of acetyl normal propyl alcohol production facility, concretely relates to reation kettle is used in production of acetyl normal propyl alcohol.
Background
Acetyl n-propanol (5-hydroxy-2-pentanone) is a fine chemical product widely used in the fields of medicine (used as a raw material for producing antimalarials, vitamins and AIDS), pesticides, organic synthesis and the like.
The synthesis process of the acetyl-n-propanol comprises a hydrogenation process and a distillation process, wherein the hydrogenation reaction is generally carried out in a gas-liquid reaction kettle, distilled water, hydrochloric acid and a catalyst are put into the hydrogenation reaction kettle, then 2-methylfuran is put into the hydrogenation reaction kettle, air is replaced by nitrogen at a low temperature (10-20 ℃), the stirring is carried out, the hydrogen flux is controlled, the reaction temperature is controlled to be 25 ℃ by frozen saline water, the pressure is controlled to be 0.25MPa until the hydrogen is not consumed, the hydrogen is replaced by the nitrogen, the catalyst is recycled by discharging the pressure filter, tail gas is discharged through a pipeline, then the pressure-extracted liquid is transferred into the distillation kettle from the pressure filter, and the acetyl-n.
At present, during normal production, the problems of uneven mixing of gas-liquid raw materials and unstable temperature in a kettle often occur due to the difference of the physical properties of the gas-liquid reaction kettle raw materials.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide a reation kettle is used in production of acetyl normal propyl alcohol, can make the more even of gas-liquid raw materials mixture for react more homogeneous, high-efficient, make the temperature in the reation kettle more stable simultaneously.
The utility model discloses an adopt following technical scheme to realize:
the reaction kettle for producing the n-propyl acetyl alcohol comprises a kettle body and a stirring shaft introduced into the kettle body, wherein an air guide cavity is formed in the stirring shaft, the upper end of the stirring shaft is respectively communicated with a first air inlet pipe and a second air inlet pipe, a stirring paddle is arranged at the bottom of the stirring shaft, an air outlet hole communicated with the air guide cavity is formed in the stirring paddle, a frozen brine pipeline is arranged on the outer wall of the kettle body, and the frozen brine pipeline consists of the outer wall of the kettle body and a channel shell fixed on the outer wall of the kettle body.
Preferably, the first air inlet pipe is provided with a first gas flow meter, a first pressure meter and a first check valve in sequence along the air inlet direction. The first check valve can prevent the materials in the kettle from flowing back to the first air inlet pipe.
Preferably, the second air inlet pipe is provided with a second gas flow meter, a second pressure meter and a second check valve in sequence along the air inlet direction. The second check valve can prevent the materials in the kettle from flowing back to the second air inlet pipe
Preferably, the stirring paddle is an anchor type stirring paddle.
Preferably, the top of the kettle body is provided with a feed inlet and an exhaust port, and the bottom of the kettle body is provided with a discharge outlet.
Preferably, the frozen brine pipe is provided with an inlet and an outlet, and the inlet of the frozen brine pipe is connected with the pressurizing pump. The force (forcing) pump can send into freezing salt water passageway through freezing salt water passageway entry with freezing salt water, flows out freezing salt water passageway from the export, because freezing salt water can direct contact reation kettle cauldron external wall for the temperature in the reation kettle is changeed and is controlled at required temperature, makes reaction temperature more stable.
Preferably, the channel housing is U-shaped in cross-section.
Preferably, the outer wall of the kettle body is provided with a frozen brine tank, and the frozen brine tank and the channel shell form a frozen brine pipeline.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a stirring shaft air guide cavity is direct to pass through the leading-in cauldron of stirring rake venthole with gaseous state raw materials internal for gas-liquid raw materials can mix more evenly.
2. The utility model discloses directly locate the outer wall of the cauldron body with freezing salt water pipeline, freezing salt water and the external wall direct contact of cauldron for reaction temperature changes control, and is more stable high-efficient.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
in the figure: 1. a stirring shaft; 2. a first check valve; 3. a first pressure gauge; 4. a first gas flow meter; 5. a first intake pipe; 6. an exhaust port; 7. a kettle body; 8. a frozen brine tank; 9. a channel housing; 10. a stirring paddle; 11. an air outlet; 12. a discharge port; 13. a gas conducting cavity; 14. a feed inlet; 15. a second intake pipe; 16. a second gas flow meter; 17. a second pressure gauge; 18. a second check valve; 19. a chilled brine line; 20. an outlet; 21. an inlet.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-2, the reaction kettle for producing n-propyl acetyl alcohol comprises a kettle body 7 and a stirring shaft 1 introduced into the kettle body 7, wherein an air guide cavity 13 is formed in the stirring shaft 1, the upper end of the stirring shaft 1 is respectively communicated with a first air inlet pipe 5 and a second air inlet pipe 15, a stirring paddle 10 is arranged at the bottom of the stirring shaft 1, an air outlet 11 communicated with the air guide cavity 13 is formed in the stirring paddle 10, a frozen brine pipeline 19 is arranged on the outer wall of the kettle body 7, and the frozen brine pipeline 19 is formed by a frozen brine tank 8 arranged on the outer wall of the kettle body 7 and a passage shell 9 fixed on the outer wall of the kettle body 7. The cross section of the channel shell 9 is U-shaped.
The first air inlet pipe 5 is sequentially provided with a first gas flowmeter 4, a first pressure gauge 3 and a first check valve 2 along the air inlet direction.
The second air inlet pipe 15 is provided with a second air flow meter 16, a second pressure gauge 17 and a second check valve 18 in sequence along the air inlet direction.
The stirring paddle 10 is an anchor type stirring paddle.
The top of the kettle body 7 is provided with a feeding hole 14 and an exhaust hole 6, and the bottom of the kettle body 7 is provided with a discharging hole 12.
The frozen brine pipe 19 is provided with an inlet 21 and an outlet 20, and the inlet 21 of the frozen brine pipe 19 is connected with a pressurizing pump.
During operation, let in liquid raw materials in with reation kettle through feed inlet 14 earlier, then let in nitrogen gas in to reation kettle through first intake pipe 5, nitrogen gas gets into reation kettle through (mixing) shaft 1's air guide chamber 13 in by venthole 11 on the stirring rake 10, replace the air in the cauldron, discharge from gas vent 6, after the nitrogen gas replacement, open the stirring, let in hydrogen through second intake pipe 15, hydrogen gets into reation kettle through (mixing) shaft 1's air guide chamber 13 in by venthole 11 on the stirring rake 10, carry out intensive mixing with liquid raw materials under the stirring state, react.
Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.
Claims (8)
1. The utility model provides an reation kettle is used in production of acetyl n-propanol, includes the cauldron body (7) and lets in (mixing) shaft (1) in the cauldron body (7), its characterized in that: the stirring shaft (1) in seted up air guide cavity (13), the upper end and first intake pipe (5) and second intake pipe (15) of (mixing) shaft (1) communicate respectively the bottom of (mixing) shaft (1) is equipped with stirring rake (10), set up on stirring rake (10) with air outlet (11) of air guide cavity (13) intercommunication, the outer wall of cauldron body (7) is equipped with freezing brine pipe way (19), freezing brine pipe way (19) by the outer wall of cauldron body (7) and fix passageway shell (9) thereon constitute.
2. The reaction kettle for producing n-propanol having acetyl group according to claim 1, wherein: the first air inlet pipe (5) is sequentially provided with a first gas flowmeter (4), a first pressure gauge (3) and a first check valve (2) along the air inlet direction.
3. The reaction kettle for producing n-propanol having acetyl group according to claim 1, wherein: and the second air inlet pipe (15) is sequentially provided with a second gas flowmeter (16), a second pressure gauge (17) and a second check valve (18) along the air inlet direction.
4. The reaction kettle for producing n-propanol having acetyl group according to claim 1, wherein: the stirring paddle (10) is an anchor type stirring paddle.
5. The reaction kettle for producing n-propanol having acetyl group according to claim 1, wherein: the top of the kettle body (7) is provided with a feeding hole (14) and an exhaust hole (6), and the bottom of the kettle body (7) is provided with a discharging hole (12).
6. The reaction kettle for producing n-propanol having acetyl group according to claim 1, wherein: the freezing brine pipeline (19) is provided with an inlet (21) and an outlet (20), and the inlet (21) of the freezing brine pipeline (19) is connected with the booster pump.
7. The reaction kettle for producing n-propanol having acetyl group according to claim 1, wherein: the cross section of the channel shell (9) is U-shaped.
8. The reaction kettle for producing n-propanol having acetyl group according to claim 1, wherein: the outer wall of the kettle body (7) is provided with a frozen brine tank (8), and the frozen brine tank (8) and the channel shell (9) form a frozen brine pipeline (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020140482.1U CN212119944U (en) | 2020-01-19 | 2020-01-19 | Reaction kettle for producing acetyl n-propanol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020140482.1U CN212119944U (en) | 2020-01-19 | 2020-01-19 | Reaction kettle for producing acetyl n-propanol |
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| Publication Number | Publication Date |
|---|---|
| CN212119944U true CN212119944U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020140482.1U Active CN212119944U (en) | 2020-01-19 | 2020-01-19 | Reaction kettle for producing acetyl n-propanol |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114984887A (en) * | 2022-04-20 | 2022-09-02 | 华阴市锦前程药业有限公司 | Esterification reaction kettle, production system and process for producing methyl o-hydroxybenzoate |
-
2020
- 2020-01-19 CN CN202020140482.1U patent/CN212119944U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114984887A (en) * | 2022-04-20 | 2022-09-02 | 华阴市锦前程药业有限公司 | Esterification reaction kettle, production system and process for producing methyl o-hydroxybenzoate |
| CN114984887B (en) * | 2022-04-20 | 2023-11-17 | 华阴市锦前程药业有限公司 | Esterification reaction kettle, production system and process for producing methyl o-hydroxybenzoate |
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