CN115646421B - Polyketone production facility and reation kettle thereof - Google Patents
Polyketone production facility and reation kettle thereof Download PDFInfo
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- CN115646421B CN115646421B CN202211360747.9A CN202211360747A CN115646421B CN 115646421 B CN115646421 B CN 115646421B CN 202211360747 A CN202211360747 A CN 202211360747A CN 115646421 B CN115646421 B CN 115646421B
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- 229920001470 polyketone Polymers 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 65
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 230000000694 effects Effects 0.000 abstract description 13
- 238000012546 transfer Methods 0.000 abstract description 10
- 238000006116 polymerization reaction Methods 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 37
- 238000000034 method Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000002994 raw material Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 239000012495 reaction gas Substances 0.000 description 3
- 239000012295 chemical reaction liquid Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 206010024769 Local reaction Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000000959 ear middle Anatomy 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000052 poly(p-xylylene) Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses polyketone production equipment and a reaction kettle thereof, wherein the polyketone production equipment comprises a kettle body, a driving motor, paddles, a stirring shaft and a vent pipe; the upper end of the stirring shaft is connected with a motor shaft of the driving motor, the lower end of the stirring shaft is connected with the paddles, the paddles are positioned in the liquid to be reacted, and the paddles are arranged along the radial direction of the reaction kettle; the vent pipe is arranged on the stirring shaft, the vent pipe is provided with an upper vent and a lower vent, the lower vent is positioned in the liquid to be reacted and is close to the paddle, and the upper vent is positioned above the liquid level of the liquid to be reacted and is communicated with the gas to be reacted. In the invention, the gas to be reacted enters the vent pipe through the upper vent port and enters the liquid to be reacted through the lower vent port under the action of pressure difference, so that the gas to be reacted is fully contacted with the liquid to be reacted, the mass transfer effect of the gas to be reacted is improved, the polymerization reaction rate is accelerated, the single kettle reaction period is shortened, and the annual yield of polyketone and the equipment utilization rate are improved.
Description
Technical Field
The invention relates to the technical field of high polymer material production by taking gas as a raw material, in particular to polyketone production equipment and a reaction kettle thereof.
Background
The polyketone is a green polymer material with excellent comprehensive performance, can be used as materials such as general plastics, engineering plastics, special engineering plastics, fibers, films and the like, has excellent physical and chemical characteristics such as high melting point, heat resistance, wear resistance, chemical reagent resistance, good mechanical properties, gas barrier property and the like, and the ketone group on the polyketone main chain endows the polyketone main chain with excellent photodegradable performance and chemically modifiable performance. The polyketone has wide sources of main raw materials, and CO in the polyketone can be obtained from coal gas production and also can be obtained from CO-containing industrial waste gas through purification. Therefore, the research and development of polyketone has very important practical significance and wide development prospect in terms of saving energy sources, eliminating white pollution, developing novel materials and the like, and meets the two requirements of energy conservation and environmental protection in the current era.
However, the polymerization process and the product state are important factors influencing the production of polyketones. Specifically, the mass transfer effect of the CO gas in the raw material in the solution directly affects the reaction speed of the polyketone, the solubility of the CO gas in the solution is poor, and the mass transfer effect of the CO gas in the solution is further reduced due to the fact that the polyketone reaction is in the form of slurry reaction.
Therefore, how to improve the mass transfer effect of the raw material gas in the solution, accelerate the polymerization reaction rate, shorten the single-kettle reaction period, and improve the annual yield of polyketone and the equipment utilization rate is a critical problem to be solved urgently by the technicians in the field.
Disclosure of Invention
The invention aims to improve the mass transfer effect of raw material gas in solution, accelerate the polymerization reaction rate, shorten the single-kettle reaction period and improve the annual yield of polyketone and the equipment utilization rate. In order to achieve the above purpose, the present invention provides the following technical solutions:
a reaction kettle comprises a kettle body, a driving motor, paddles, a stirring shaft and a vent pipe;
the reactor comprises a reactor body, a stirring shaft, a paddle, a stirring shaft and a stirring shaft, wherein the reactor body is used for accommodating liquid to be reacted and gas to be reacted, the upper end of the stirring shaft is connected with a motor shaft of the driving motor, the lower end of the stirring shaft is connected with the paddle, the paddle is positioned in the liquid to be reacted, and the paddle is arranged along the radial direction of the reactor;
The vent pipe is arranged on the stirring shaft and is provided with an upper vent and a lower vent, the lower vent is positioned in the liquid to be reacted and is close to the paddle, and the upper vent is positioned above the liquid level of the liquid to be reacted and is communicated with the gas to be reacted.
Preferably, the reaction kettle further comprises an ear pocket, the ear pocket is positioned above the liquid level of the liquid to be reacted, the ear pocket is arranged on the vent pipe, and the ear pocket is communicated with an upper vent hole of the vent pipe;
One side of the ear pocket is provided with a gas catching port, the direction of the gas catching port is along the horizontal direction, and the gas catching port is communicated with the inner cavity of the ear pocket.
Preferably, the air catching opening is an outwardly flared opening.
Preferably, the upper vent is connected with the bottom of the ear pocket.
Preferably, a nozzle is arranged at the lower vent, and the nozzle is communicated with the lower vent.
Preferably, stirring blades are arranged on the stirring shaft, and the stirring blades are located between the ear pockets and the paddles.
Preferably, the stirring blade is a ribbon blade, the ribbon blade surrounds the circumference of the stirring shaft and extends along the axial direction of the stirring shaft, and at least one part of the ribbon blade is connected with the stirring shaft;
The vent pipe is arranged on the spiral belt and is arranged along the spiral belt type blade, and the ear pocket is arranged at the upper end of the spiral belt type blade.
Preferably, the helical ribbon type blades are two pairs, two helical ribbon type blades in each pair are symmetrically arranged about the stirring shaft, one pair of helical ribbon type blades is located in an area surrounded by the other pair of helical ribbon type blades, and the ventilation pipe is arranged on each of the four helical ribbon type blades.
Preferably, the kettle body is sleeved with a jacket, the jacket comprises a water inlet and a water outlet, the water inlet is connected with an outlet of the circulating water system, and the water outlet is connected with an inlet of the circulating water system.
The invention also provides polyketone production equipment, which comprises a reaction kettle, wherein the reaction kettle is any one of the reaction kettles.
From the technical scheme, the following can be seen: the paddle can generate micro negative pressure in the rotating process, the lower vent of the vent pipe is positioned in the micro negative pressure area, the upper vent of the vent pipe is positioned in the gas area to be reacted above the liquid level of the liquid to be reacted, namely, the upper vent is positioned in the positive pressure area. Under the action of pressure difference, gas to be reacted enters the vent pipe through the upper vent and enters the liquid to be reacted through the lower vent, so that the gas to be reacted is fully contacted with the liquid to be reacted, the mass transfer effect of the gas to be reacted is improved, the polymerization reaction rate is accelerated, the single-kettle reaction period is shortened, and the annual yield of polyketone and the equipment utilization rate are improved.
In the specific embodiment of the invention, the stirring blade is additionally arranged, and the stirring blade is arranged on the stirring shaft. Stirring vane's effect is for stirring and treats the reaction liquid, makes reaction gas and reaction liquid even contact, ensures that the reaction heat transfer is even, avoids local reaction too fast to lead to product caking and wall built-up phenomenon to prevent polyketone resultant caking, and prevent polyketone resultant from attaching on the internal wall of cauldron, avoid regularly opening the cauldron and wasing the cauldron body, and then improved polyketone production's continuity and high efficiency.
Drawings
In order to more clearly illustrate the solution of the embodiments of the present invention, the following description will briefly explain the drawings needed to be used in the embodiments, it being evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a reaction kettle according to an embodiment of the present invention.
Wherein, 1 is the cauldron body, 2 is the (mixing) shaft, 3 is driving motor, 4 is the shaft coupling, 5 is spiral shell belt blade, 6 is the ear pocket, 7 is the breather pipe, 8 is the nozzle, 9 is the paddle, 10 is the feed inlet, 11 is the air inlet, 12 is the discharge gate.
Detailed Description
The invention discloses a reaction kettle which can improve the mass transfer effect of raw material gas in a solution, accelerate the polymerization reaction rate, shorten the single kettle reaction period and improve the annual yield of polyketone and the equipment utilization rate. The invention also discloses polyketone production equipment.
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
Referring to fig. 1, the invention discloses a reaction kettle, which comprises a kettle body 1, and particularly comprises a driving motor 3, paddles 9, a stirring shaft 2 and a vent pipe 7.
Wherein, the kettle body 1 is used for accommodating liquid to be reacted and gas to be reacted. The upper end of the stirring shaft 2 is connected with a motor shaft of the driving motor 3, and the lower end of the stirring shaft 2 is connected with a blade 9. The driving motor 3 drives the paddle 9 to rotate through the stirring shaft 2. The paddles 9 are located in the liquid to be reacted, and the paddles 9 are arranged along the radial direction of the reaction vessel. When the paddle 9 rotates, the liquid to be reacted is promoted to flow to the inner wall of the kettle body 1, so that micro negative pressure is formed in the area where the paddle 9 is positioned and near the center of the kettle body 1.
The breather pipe 7 is supported by the stirring shaft 2, and the breather pipe 7 rotates along with the stirring shaft 2. The vent pipe 7 has an upper vent and a lower vent. The lower vents are located in the gas to be reacted and are arranged close to the paddles 9. The upper vent is positioned above the liquid level of the liquid to be reacted and is communicated with the gas to be reacted positioned above the liquid level of the liquid to be reacted.
The paddle 9 generates micro negative pressure in the rotating process, the lower vent of the vent pipe 7 is positioned in the micro negative pressure area, and the upper vent of the vent pipe 7 is positioned in the gas area to be reacted above the liquid level of the liquid to be reacted, namely the upper vent is positioned in the positive pressure area. Under the action of the pressure difference, gas to be reacted enters the breather pipe 7 through the upper vent and enters the liquid to be reacted through the lower vent, so that the gas to be reacted is fully contacted with the liquid to be reacted, the mass transfer effect of the gas to be reacted is improved, the polymerization reaction rate is accelerated, the single-kettle reaction period is shortened, and the annual yield of polyketone and the equipment utilization rate are improved.
In the specific embodiment of the invention, the ear pocket 6 is additionally arranged, the ear pocket 6 is positioned above the liquid level of the liquid to be reacted, and the ear pocket 6 is arranged on the vent pipe 7. The ear pocket 6 is communicated with an upper vent of the vent pipe 7. The ear pocket 6 is of a cavity structure, one side of the ear pocket 6 is provided with a gas catching port, and the direction of the gas catching port is along the horizontal direction. The air catching port is communicated with the inner cavity of the ear pocket 6.
In the process of rotating the stirring shaft 2, the ear pocket 6 rotates along with the stirring shaft, the air to be reacted is captured by the air capturing opening in the process of rotating the ear pocket 6, the captured air to be reacted is captured in the inner cavity of the ear pocket 6, and then the air to be reacted enters the vent pipe 7 under the action of pressure difference and finally enters the liquid to be reacted.
The shape of the ear pocket 6 can be cylindrical, cuboid, or different, as long as one side of the ear pocket 6 can form a gas catching port, and the inside of the ear pocket 6 can form a cavity for containing gas, which falls into the protection scope of the present disclosure.
In order to facilitate the gas capturing of the gas capturing port, the gas capturing port is flared, and the gas capturing port is flared outwards.
Referring to fig. 1, in fig. 1, the middle ear pocket 6 has a generally rectangular parallelepiped structure, and the air catching opening is provided on one of four sides. And the air catching openings are expanded outwards upwards, downwards, leftwards and rightwards to form the horn-like air catching opening.
The upper vent of the vent pipe 7 is connected to the bottom of the ear pocket 6, and after the reaction gas enters the inner cavity of the ear pocket 6, the reaction gas enters the upper vent through the bottom of the ear pocket 6 and then enters the vent pipe 7.
In the embodiment of the invention, a nozzle 8 is arranged at the lower vent of the vent pipe 7, and the nozzle 8 is communicated with the lower vent. The gas to be reacted which enters the vent pipe 7 is injected into the liquid to be reacted through the nozzle 8. The nozzles 8 can increase the injection area of the gas to be reacted, thereby ensuring sufficient contact of the gas to be reacted with the liquid to be reacted.
In the specific embodiment of the invention, stirring blades are additionally arranged, and the stirring blades are arranged on the stirring shaft 2. In order to avoid interference between the blade 9 and the ear cup 6, the present embodiment defines that the stirring blade is located between the ear cup 6 and the blade 9.
The stirring blade has the functions of stirring the liquid to be reacted, thereby preventing the polyketone products from caking and attaching on the inner wall of the kettle body 1, avoiding periodic kettle opening and cleaning of the kettle body 1, and further improving the continuity and the high efficiency of polyketone production.
The stirring blade may be a paddle blade or a ribbon blade 5. In the specific embodiment of the present invention, the stirring blade is preferably a ribbon blade 5. The ribbon-like blades 5 surround the circumference of the stirring shaft 2 while extending in the axial direction of the stirring shaft 2. At least a part of the ribbon blade 5 is connected to the stirring shaft 2. The vent pipe 7 is arranged and connected to the ribbon-type blade 5, and the vent pipe 7 is arranged along the spiral trend of the ribbon-type blade 5. The breather pipe 7 is provided on the stirring shaft 2 through the ribbon type blade 5. The ear pocket 6 is arranged at the upper end of the ribbon-type blade 5. Compared with the paddle type blade, the ribbon type blade 5 not only plays a role in stirring liquid to be reacted, but also provides mounting positions for the vent pipe 7 and the ear pocket 6, and is beneficial to mounting of the vent pipe 7 and the ear pocket 6.
The vent pipe 7 may be welded to the surface of the ribbon-shaped blade 5, or may be formed inside the ribbon-shaped blade 5, specifically, the ribbon-shaped liquid sheet 5 and the vent pipe 7 may be integrally formed by casting.
Referring to fig. 1, in the embodiment of the present invention, the ribbon-type blades 5 are designed in two pairs. The two ribbon-like blades 5 of each pair are symmetrically arranged about the stirring shaft 2. In the two pairs of helical ribbon-shaped blades 5, one pair of helical ribbon-shaped blades 5 is located in an area surrounded by the other pair of helical ribbon-shaped blades 5. The vent pipe 7 is provided on each of four ribbon-type blades 5 of the two pairs of ribbon-type blades 5. So both ensured the quantity of spiral shell belt blade 5, improved stirring effect, ensured the quantity of breather pipe 7 simultaneously again, improved the mass transfer effect of waiting the reacting gas.
In the two pairs of ribbon-like blades 5, the middle portions of the four ribbon-like blades 5 are each connected to the stirring shaft 2. In order to improve the stability of the structure of the two pairs of ribbon-type blades 5, the invention is provided with the upper cross beams at the upper parts of the four ribbon-type blades 5, and the upper cross beams are sequentially connected with the upper parts of the four ribbon-type blades 5. The lower cross beam is arranged at the lower parts of the four spiral belt type blades 5, and the lower cross beam is sequentially connected with the lower parts of the four spiral belt type blades 5.
In addition, two ear pockets 6 are designed, and the two ear pockets 6 are respectively arranged at the left side and the right side of the stirring shaft 2. Each ear cup 6 communicates with the upper vents of two vent tubes 7 on the same side of the stirring shaft 2.
With continued reference to fig. 1, the driving motor 3 is arranged above the kettle body 1, a motor shaft of the driving motor 3 extends into the kettle body 1, and the stirring shaft 2 is connected with a motor shaft of the driving motor 3 through a coupling 4.
The embodiment of the invention is also provided with a jacket on the outer side of the kettle body 1, wherein the jacket is provided with a water inlet and a water outlet. The water inlet and the water outlet are both communicated with the inner cavity of the jacket. The water inlet is communicated with the outlet of the circulating water system, and the water outlet is communicated with the inlet of the circulating water system. The circulating water system continuously introduces circulating water into the inner cavity of the jacket through the water inlet, so that heat is exchanged for the kettle body 1, and the reaction temperature is maintained. After exchanging heat with the kettle body 1, the circulating water flows back into the circulating water system through the water outlet.
The invention is provided with a feed inlet 10 and an air inlet 11 on the sealing cover of the kettle body 1, and a discharge outlet 12 on the bottom of the kettle body 1. The material of the kettle body 1 is preferably stainless steel.
The invention also discloses polyketone production equipment, which comprises a reaction kettle, and particularly, the reaction kettle is any one of the reaction kettles, the reaction kettle has the effects, and the polyketone production equipment with the reaction kettle also has the effects, so that the description is omitted.
Finally, it is also noted that 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 the element.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The reaction kettle comprises a kettle body (1) and is characterized by further comprising a driving motor (3), paddles (9), a stirring shaft (2) and a vent pipe (7);
The reactor comprises a reactor body (1), a stirring shaft (2), a paddle (9) and a stirring shaft (2), wherein the reactor body (1) is used for accommodating liquid to be reacted and gas to be reacted, the upper end of the stirring shaft (2) is connected with a motor shaft of the driving motor (3), the lower end of the stirring shaft (2) is connected with the paddle (9), the paddle (9) is positioned in the liquid to be reacted, and the paddle (9) is arranged along the radial direction of the reactor;
The breather pipe (7) is arranged on the stirring shaft (2), the breather pipe (7) is provided with an upper vent and a lower vent, the lower vent is positioned in the liquid to be reacted and is close to the paddle (9), and the upper vent is positioned above the liquid level of the liquid to be reacted and is communicated with the gas to be reacted;
The reaction kettle further comprises an ear pocket (6), wherein the ear pocket (6) is positioned above the liquid level of the liquid to be reacted, the ear pocket (6) is arranged on the vent pipe (7), and the ear pocket (6) is communicated with an upper vent of the vent pipe (7);
one side of the ear pocket (6) is provided with a gas catching port, the direction of the gas catching port is along the horizontal direction, and the gas catching port is communicated with the inner cavity of the ear pocket (6);
a stirring blade is arranged on the stirring shaft (2), and the stirring blade is positioned between the ear pocket (6) and the blade (9);
The stirring blades are spiral belt type blades (5), the spiral belt type blades (5) encircle the circumference of the stirring shaft (2) and extend along the axial direction of the stirring shaft (2), and at least one part of the spiral belt type blades (5) is connected with the stirring shaft (2);
The vent pipe (7) is arranged on the spiral belt and is arranged along the spiral belt type blade (5), and the ear pocket (6) is arranged at the upper end of the spiral belt type blade (5).
2. The reactor of claim 1, wherein said gas trapping port is an outwardly flared mouth.
3. The reaction kettle according to claim 1, wherein the upper vent is connected with the bottom of the ear pocket (6).
4. The reaction kettle according to claim 1, wherein a nozzle (8) is arranged at the lower vent, and the nozzle (8) is communicated with the lower vent.
5. The reaction kettle according to claim 1, wherein the number of the ribbon-shaped blades (5) is two, two ribbon-shaped blades (5) in each pair are symmetrically arranged about the stirring shaft (2), one pair of ribbon-shaped blades (5) is positioned in an area surrounded by the other pair of ribbon-shaped blades (5), and the vent pipes (7) are arranged on all four ribbon-shaped blades (5).
6. The reaction kettle according to claim 1, wherein the kettle body (1) is sleeved with a jacket, the jacket comprises a water inlet and a water outlet, the water inlet is connected with an outlet of a circulating water system, and the water outlet is connected with an inlet of the circulating water system.
7. A polyketone production facility comprising a reaction vessel, wherein the reaction vessel is a reaction vessel according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211360747.9A CN115646421B (en) | 2022-11-02 | 2022-11-02 | Polyketone production facility and reation kettle thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211360747.9A CN115646421B (en) | 2022-11-02 | 2022-11-02 | Polyketone production facility and reation kettle thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115646421A CN115646421A (en) | 2023-01-31 |
| CN115646421B true CN115646421B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211360747.9A Active CN115646421B (en) | 2022-11-02 | 2022-11-02 | Polyketone production facility and reation kettle thereof |
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| Country | Link |
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| CN (1) | CN115646421B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5762418A (en) * | 1996-07-19 | 1998-06-09 | Van Drie; Gerhardt Woodrow | Submarine-type liquid mixer |
| CN1324924A (en) * | 2000-05-18 | 2001-12-05 | 周镭 | Thallus culturing equipment and method and thallus culturing system with the equipment |
| CN213286847U (en) * | 2020-09-01 | 2021-05-28 | 江西鑫臻科技有限公司 | A chlorination cauldron for pesticide production |
-
2022
- 2022-11-02 CN CN202211360747.9A patent/CN115646421B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5762418A (en) * | 1996-07-19 | 1998-06-09 | Van Drie; Gerhardt Woodrow | Submarine-type liquid mixer |
| CN1324924A (en) * | 2000-05-18 | 2001-12-05 | 周镭 | Thallus culturing equipment and method and thallus culturing system with the equipment |
| CN213286847U (en) * | 2020-09-01 | 2021-05-28 | 江西鑫臻科技有限公司 | A chlorination cauldron for pesticide production |
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|---|---|
| CN115646421A (en) | 2023-01-31 |
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