CN116532076B - Tubular reation kettle based on polyimide preparation - Google Patents
Tubular reation kettle based on polyimide preparation Download PDFInfo
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- CN116532076B CN116532076B CN202310816533.6A CN202310816533A CN116532076B CN 116532076 B CN116532076 B CN 116532076B CN 202310816533 A CN202310816533 A CN 202310816533A CN 116532076 B CN116532076 B CN 116532076B
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- shell
- rotating rod
- pipe
- baffle
- servo motor
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- 239000004642 Polyimide Substances 0.000 title claims abstract description 21
- 229920001721 polyimide Polymers 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 60
- 238000005192 partition Methods 0.000 claims description 23
- 238000004321 preservation Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 4
- 244000309464 bull Species 0.000 description 7
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
- B01J4/007—Feed or outlet devices as such, e.g. feeding tubes provided with moving parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/005—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the outlet side being of particular interest
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Abstract
The invention relates to the technical field of tubular reaction kettles, in particular to a tubular reaction kettle based on polyimide preparation. The invention provides a tubular reaction kettle based on polyimide preparation, which can accurately feed materials and ensure the full mixing of the materials. A tubular reaction kettle based on polyimide preparation comprises a first shell, a second shell, a first baffle plate, a feeding conduit and the like; the upper side of first shell is connected with the second shell, and the lower part inboard of second shell is connected with first baffle, is connected with a plurality of feeding pipes between second shell and the first baffle. According to the invention, the first servo motor is started to drive the first rotating rod and the stirring paddle to rotate, and meanwhile, the first rotating rod rotates to drive the worm to rotate, so that the pushing block moves through the worm wheel, the belt pulley and the driving belt, and further, the material is automatically and regularly dripped into the first shell, the accurate feeding is further ensured, and meanwhile, the full mixing of the material is ensured in the dripping process.
Description
Technical Field
The invention relates to the technical field of tubular reaction kettles, in particular to a tubular reaction kettle based on polyimide preparation.
Background
Polyimide is used as a special engineering material, and has a great application prospect as a structural material or a functional material due to the outstanding characteristics of the polyimide in performance and synthesis, and is widely applied to the fields of aviation, aerospace, microelectronics, nanometer, liquid crystal, separation membrane, laser and the like. In the polyimide production process, a reaction kettle is needed. However, the kettle type reaction kettle cannot achieve accurate feeding, and cannot fully mix materials in the dripping process, so that the produced product is unstable in performance, and the tubular reaction kettle has the advantages of small energy-saving volume, good heat preservation, continuous production and the like, so that the tubular reaction kettle is generally used for continuous reaction to obtain PI solution.
Therefore, it is necessary to design a tubular reaction kettle based on polyimide preparation, which can accurately feed materials and ensure the full mixing of the materials.
Disclosure of Invention
In order to overcome the defects that a kettle type reaction kettle cannot accurately feed materials and cannot fully mix materials in a dripping process, so that the performance of a produced product is unstable, the invention provides a tubular reaction kettle based on polyimide preparation, which can accurately feed materials and ensure the full mixing of the materials.
The utility model provides a tubular reation kettle based on polyimide preparation, including first shell, the second shell, first baffle, the feeding pipe, the ejection of compact pipe, mixing mechanism and unloading control mechanism, the upside of first shell is connected with the second shell, the lower part inboard of second shell is connected with first baffle, be connected with a plurality of feeding pipes between second shell and the first baffle, the downside of first shell is connected with the ejection of compact pipe, be equipped with the mixing mechanism who is used for the intensive mixing with dropwise add in-process material between first shell and the second shell, be equipped with the unloading control mechanism that is used for accurate reinforced between second shell and the feeding pipe, drip the material through the feeding pipe, mixing mechanism can be to the intensive mixing of dropwise add in-process material, at mixing mechanism operation in-process, can drive unloading control mechanism operation realization accurate feeding.
More preferably, the inner side of the first housing is connected with a plurality of baffles at uniform intervals along the circumference.
More preferably, the mixing mechanism comprises a first servo motor, a first rotating rod, a stirring paddle, a second partition plate and a parallel flow pipe, wherein the first servo motor is arranged on the upper side of the second shell, the output shaft of the first servo motor is connected with the first rotating rod, the first rotating rod penetrates through the first partition plate to be connected with the stirring paddle, the stirring paddle is positioned on the inner side of the first shell, the inner side of the lower part of the first shell is connected with the second partition plate, and a plurality of parallel flow pipes are connected between the second partition plate and the discharge guide pipe; the first servo motor is started to drive the first rotating rod and the stirring paddle to rotate, so that materials in the dripping process are fully mixed, and the materials after the mixed reaction are continuously and stably discharged from the discharge guide pipe through the advection pipe.
More preferably, the blanking control mechanism comprises a supporting frame, a worm wheel, a driving belt, pushing blocks, control valves, torsion springs and worms, wherein the inner side of the upper part of the second shell is connected with three supporting frames, one sides of the supporting frames, which are close to each other, are respectively and rotationally connected with the worm wheel, driving belts are respectively and rotationally connected between a feeding guide pipe and adjacent worm wheels through the belt wheels, the inner sides of the driving belts are respectively and continuously arranged with the pushing blocks, the feeding guide pipes are respectively and rotationally connected with the control valves, the pushing blocks are respectively and closely matched with the adjacent control valves, the torsion springs are respectively and rotationally connected between the control valves and the adjacent feeding guide pipes, the upper part of the first rotating rod is connected with the worms, and the worm wheels are respectively meshed with the worms; the worm is driven to rotate when the first rotating rod rotates, the worm wheel is driven to rotate, the driving belt is driven to operate through the belt pulley when the worm wheel rotates, the driving belt operates to enable the pushing block to move, and the control valve is pushed to rotate and open when the pushing block moves to be in contact with the control valve.
More preferably, still including many rabbling mechanisms, many rabbling mechanisms are including second bull stick, stirring leaf, first gear, second gear and ring gear, slide on the first baffle and the rotation is connected with three second bull stick, the upper portion of second bull stick is equipped with the dog, the dog contacts with first baffle, the downside of second bull stick all is connected with the stirring leaf, the upside of second bull stick all is connected with first gear, the key is connected with the second gear on the first bull stick, first gear all meshes with the second gear, the upper portion of first bull stick is connected with the ring gear, first gear all meshes with the ring gear.
More preferably, the device further comprises an interception mechanism, the interception mechanism comprises a first mounting frame, a second servo motor, a rotating shaft and an interception disc, the first mounting frame is mounted on the lower side of the second partition plate, the second servo motor is mounted on the first mounting frame, the rotating shaft is connected to an output shaft of the second servo motor, the rotating shaft penetrates through the second partition plate to be connected with the interception disc, and the interception disc is used for blocking the upper portion to be rotationally connected with the upside of the flat flow pipe.
More preferably, the device further comprises a switching mechanism, wherein the switching mechanism comprises a second mounting frame, an air cylinder and a connecting piece, the upper side of the first partition board is connected with a plurality of second mounting frames, the second mounting frames are respectively connected with the air cylinders, the telescopic ends of the air cylinders are respectively connected with the connecting piece, and the connecting piece is connected with an adjacent second rotating rod in a rotating mode; the cylinder is controlled to operate, so that the connecting piece drives the second rotating rod to move, and the first gear is switched to be meshed with the gear ring and the second gear.
More preferably, the heat preservation device further comprises a heat preservation mechanism, wherein the heat preservation mechanism comprises a flow guide pipe and a flange plate, the outer side of the first shell is in wrap connection with the flow guide pipe, and the upper end and the lower end of the flow guide pipe are both connected with the flange plate.
Compared with the prior art, the invention has the following advantages: 1. according to the invention, the first servo motor is started to drive the first rotating rod and the stirring paddle to rotate, and meanwhile, the first rotating rod rotates to drive the worm to rotate, so that the pushing block moves through the worm wheel, the belt pulley and the driving belt, and further, the material is automatically and regularly dripped into the first shell, the accurate feeding is further ensured, and meanwhile, the full mixing of the material is ensured in the dripping process.
2. The first rotating rod also drives the first gear to rotate, and then drives the second gear to rotate, and the second gear rotates to drive the second rotating rod to rotate, so that the stirring blade rotates, the first shell is further easy to stir, and the materials are fully mixed.
3. The invention can control the second servo motor to operate so as to drive the rotating shaft to rotate, thereby driving the interception disk to rotate so as to block the flat flow pipe, avoiding that the solution enters the flat flow pipe and is not fully mixed, and after the PI solution is obtained, controlling the second servo motor so that the interception disk rotates so as not to block the flat flow pipe, and further enabling the PI solution to be continuously and stably discharged from the discharging guide pipe through the flat flow pipe.
4. According to the invention, the operation of the air cylinder can be controlled, so that the second rotating rod is driven to move through the connecting piece, and the first gear is switched to be meshed with the gear ring and the second gear, so that the stirring blade can rotate back and forth, the solution disorder is further increased, and the stirring effect is improved.
5. When the reaction kettle is required to be heated, hot water can be poured through the upper flange plate, so that the hot water is discharged from the lower flange plate through the flow guide pipe, and the reaction kettle is stably heated and kept warm.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a partial perspective sectional view of the present invention.
Fig. 3 is a perspective cross-sectional view of the mixing mechanism of the present invention.
Fig. 4 is a perspective structural sectional view of the blanking control mechanism of the present invention.
Fig. 5 is a schematic perspective view of a multiple stirring mechanism according to the present invention.
Fig. 6 is a schematic perspective view of an interception mechanism according to the present invention.
Fig. 7 is a perspective cross-sectional view of the interception mechanism of the present invention.
Fig. 8 is a perspective sectional view of the switching mechanism of the present invention.
Fig. 9 is a schematic perspective view of a thermal insulation mechanism according to the present invention.
The marks of the components in the drawings are as follows: 1. the device comprises a first shell, 11, a baffle plate, 2, a second shell, 21, a first baffle plate, 3, a feeding guide pipe, 4, a discharging guide pipe, 5, a mixing mechanism, 50, a first servo motor, 51, a first rotating rod, 52, a stirring paddle, 53, a second baffle plate, 54, a flat flow pipe, 6, a blanking control mechanism, 60, a supporting frame, 61, a worm wheel, 62, a driving belt, 63, a pushing block, 64, a control valve, 65, a torsion spring, 66, a worm, 7, a plurality of stirring mechanisms, 70, a second rotating rod, 71, a stirring blade, 72, a first gear, 73, a second gear, 74, a gear ring, 8, an interception mechanism, 80, a first installation frame, 81, a second servo motor, 82, a rotating shaft, 83, an interception disc, 9, a switching mechanism, 90, a second installation frame, 91, an air cylinder, 92, a connecting piece, 10, a heat preservation mechanism, 101, a honeycomb duct, 102 and a flange plate.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. 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 be within the scope of the invention.
The utility model provides a tubular reation kettle based on polyimide preparation, as shown in fig. 1-4, including first shell 1, baffle 11, second shell 2, first baffle 21, feeding pipe 3, ejection of compact pipe 4, mixing mechanism 5 and unloading control mechanism 6, the inboard of first shell 1 is connected with 4 baffles 11 according to circumference even interval, the upside of first shell 1 is connected with second shell 2 through the bolted connection, the lower part inboard of second shell 2 is connected with first baffle 21, be connected with 3 feeding pipe 3 between second shell 2 and the first baffle 21, the downside of first shell 1 is connected with ejection of compact pipe 4, be equipped with between first shell 1 and the second shell 2 and be used for the intensive mixing of material in the dropwise add process mixing mechanism 5, be equipped with between second shell 2 and the feeding pipe 3 and be used for accurate reinforced unloading control mechanism 6.
As shown in fig. 2 and 3, the mixing mechanism 5 includes a first servo motor 50, a first rotating rod 51, a stirring paddle 52, a second partition plate 53 and a flat flow pipe 54, the first servo motor 50 is mounted on the upper side of the second housing 2 through bolts, the first rotating rod 51 is connected to an output shaft of the first servo motor 50, the first rotating rod 51 penetrates through the first partition plate 21 to be connected with the stirring paddle 52, the stirring paddle 52 is located inside the first housing 1, the second partition plate 53 is connected to the inner side of the lower portion of the first housing 1, and 10 flat flow pipes 54 are connected between the second partition plate 53 and the discharge guide pipe 4.
As shown in fig. 2 and 4, the blanking control mechanism 6 comprises a supporting frame 60, a worm wheel 61, a driving belt 62, pushing blocks 63, a control valve 64, a torsion spring 65 and a worm 66, wherein the inner side of the upper part of the second shell 2 is connected with three supporting frames 60, one sides of the supporting frames 60, which are close to each other, are respectively and rotatably connected with the worm wheel 61, a driving belt 62 is respectively and rotatably connected between a feeding guide pipe 3 and an adjacent worm wheel 61 through a belt pulley, the inner side of the driving belt 62 is respectively and rotatably connected with a plurality of pushing blocks 63 which are continuously arranged, the feeding guide pipe 3 is respectively and rotatably connected with the control valve 64, the pushing blocks 63 are respectively and in contact fit with the adjacent control valve 64, the torsion spring 65 is respectively connected between the control valve 64 and the adjacent feeding guide pipe 3, the upper part of the first rotating rod 51 is connected with the worm 66, and the worm wheel 61 is respectively meshed with the worm 66.
When polyimide is required to be prepared, raw material ketoanhydride is dissolved in a high-boiling-point dimethylacetamide solvent in advance and is injected into the first shell 1, diphenylmethane diisocyanate MDI or toluene diisocyanate TDI is connected with the feeding guide pipe 3, the first servo motor 50 is started simultaneously, the first servo motor 50 drives the first rotating rod 51 to rotate, the stirring paddle 52 is driven to rotate, simultaneously the first rotating rod 51 rotates to drive the worm 66 to rotate, the worm wheel 61 is driven to rotate, the worm wheel 61 rotates to drive the driving belt 62 through a belt pulley, the driving belt 62 operates to enable the pushing block 63 to move, the pushing block 63 moves to be in contact with the control valve 64 to drive the control valve 64 to rotate and open, the torsion spring 65 deforms, at the moment, the diphenylmethane diisocyanate MDI or toluene diisocyanate TDI is dripped into the first shell 1, the stirring paddle 52 rotates to fully mix the dripped diphenylmethane diisocyanate MDI or toluene diisocyanate with the ketoanhydride solution, the stirring baffle 11 can increase the turbulence degree of the stirred liquid, thereby improving the stirring effect, when the pushing block 63 moves to be separated from the control valve 64, the driving motor 65 drives the driving belt 62 to operate, the driving belt 62 is driven to rotate to open, the torsion spring 65 is dripped into the first shell 1, the dripping valve 64 is completely, the dripping is stopped when the dripping material is heated, the mixed material is completely, the mixed material is heated, the dripping material is 20 is completely is ensured, the dripping material is heated, and the reaction is completely is heated, and the dripping material is heated after the dripping material is completely, and the heating down at one side of the heating valve is 20 is completely, and the dripping is heated, the PI solution is then continuously and steadily discharged from the discharge conduit 4 through the flat flow pipe 54.
As shown in fig. 2 and 5, the stirring device further comprises a plurality of stirring mechanisms 7, wherein each stirring mechanism 7 comprises a second rotating rod 70, stirring blades 71, a first gear 72, a second gear 73 and a gear ring 74, three second rotating rods 70 are connected on the first partition plate 21 in a sliding and rotating manner, a stop block is arranged on the upper portion of each second rotating rod 70 and is in contact with the first partition plate 21, the stirring blades 71 are connected on the lower sides of the second rotating rods 70, the first gears 72 are connected on the upper sides of the second rotating rods 70, the second gears 73 are connected on the first rotating rods 51 in a key manner, the first gears 72 are meshed with the second gears 73, the gear rings 74 are connected on the upper portions of the first rotating rods 51, and the first gears 72 are meshed with the gear rings 74.
The first rotating rod 51 rotates to drive the first gear 72 to rotate, the second gear 73 is driven to rotate, the second gear 73 rotates to drive the second rotating rod 70 to rotate, so that the stirring blade 71 rotates, the first shell 1 is further easy to stir, the materials are guaranteed to be fully mixed, and the first rotating rod 51 can be prevented from sliding down by the stop block.
As shown in fig. 2, 6 and 7, the device further comprises an interception mechanism 8, the interception mechanism 8 comprises a first mounting frame 80, a second servo motor 81, a rotating shaft 82 and an interception disc 83, the first mounting frame 80 is mounted on the lower side of the second partition plate 53, the second servo motor 81 is mounted on the first mounting frame 80, the rotating shaft 82 is connected to an output shaft of the second servo motor 81, the interception disc 83 penetrates through the second partition plate 53, and the interception disc 83 is used for blocking the upper portion to be rotationally connected with the upper side of the flat flow pipe 54.
When polyimide is needed to be prepared, the second servo motor 81 can be controlled to operate so as to drive the rotating shaft 82 to rotate, so that the interception disk 83 can be driven to rotate to block the flat flow pipe 54, the solution is prevented from entering the flat flow pipe 54 and is not fully mixed, after the PI solution is obtained, the second servo motor 81 can be controlled to drive the rotating shaft 82 and the interception disk 83 to rotate so as not to block the flat flow pipe 54 any more, and the PI solution can be continuously and stably discharged from the discharging guide pipe 4 through the flat flow pipe 54.
As shown in fig. 2 and 8, the switching mechanism 9 further comprises a second mounting frame 90, air cylinders 91 and connecting pieces 92, wherein the upper side of the first partition board 21 is connected with 3 second mounting frames 90, the second mounting frames 90 are respectively connected with the air cylinders 91, the telescopic ends of the air cylinders 91 are respectively connected with the connecting pieces 92, and the connecting pieces 92 are rotatably connected with the adjacent second rotating rods 70.
When the rotation direction of the second rotating rod 70 and the stirring blade 71 needs to be replaced, the cylinder 91 can be controlled to operate, so that the connecting piece 92 drives the second rotating rod 70 to move upwards, the first gear 72 is meshed with the gear ring 74, the second rotating rod 70 and the stirring blade 71 can rotate and stir in the same direction as the rotation direction of the first rotating rod 51, then the cylinder 91 is controlled to operate reversely, the first gear 72 is driven to mesh with the second gear 73 again, and the stirring blade 71 can be rotated back and forth repeatedly, so that the solution disorder is increased, and the stirring effect is improved.
As shown in fig. 1 and 9, the heat preservation device further comprises a heat preservation mechanism 10, the heat preservation mechanism 10 comprises a flow guide pipe 101 and a flange 102, the outer side of the first shell 1 is in wound connection with the flow guide pipe 101, and the upper end and the lower end of the flow guide pipe 101 are both connected with the flange 102.
When the reaction kettle needs to be heated, hot water can be poured through the upper flange plate 102, so that the hot water is discharged from the lower flange plate 102 through the flow guide pipe 101, and the reaction kettle is stably heated and kept warm.
While the present disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. The scope of the disclosure should, therefore, not be limited to the above-described embodiments, but should be determined not only by the following claims, but also by the equivalents of the following claims.
Claims (6)
1. The utility model provides a tubular reaction kettle based on polyimide preparation, including first shell (1), second shell (2), first baffle (21), feeding pipe (3), ejection of compact pipe (4), the upside of first shell (1) is connected with second shell (2), the lower part inboard of second shell (2) is connected with first baffle (21), be connected with a plurality of feeding pipe (3) between second shell (2) and first baffle (21), the downside of first shell (1) is connected with ejection of compact pipe (4), characterized by still including mixing mechanism (5) and unloading control mechanism (6), be equipped with mixing mechanism (5) between first shell (1) and the second shell (2), be equipped with unloading control mechanism (6) between second shell (2) and feeding pipe (3), through feeding pipe (3) dropwise add material, mixing mechanism (5) can fully mix the material in the dropwise add in-process, in mixing mechanism (5) operation in-process, can drive unloading control mechanism (6) operation realization accuracy; the mixing mechanism (5) comprises a first servo motor (50), a first rotating rod (51), a stirring paddle (52), a second partition plate (53) and a flat flow pipe (54), wherein the first servo motor (50) is arranged on the upper side of the second housing (2), the first rotating rod (51) is connected to an output shaft of the first servo motor (50), the first rotating rod (51) penetrates through the first partition plate (21) to be connected with the stirring paddle (52), the stirring paddle (52) is positioned on the inner side of the first housing (1), the second partition plate (53) is connected to the inner side of the lower part of the first housing (1), and a plurality of flat flow pipes (54) are connected between the second partition plate (53) and the discharge guide pipe (4); the first servo motor (50) is started to drive the first rotating rod (51) and the stirring paddle (52) to rotate, so that materials in the dripping process are fully mixed, and the materials after the mixed reaction are continuously and stably discharged from the discharge guide pipe (4) through the flat flow pipe (54); the blanking control mechanism (6) comprises a supporting frame (60), worm wheels (61), a transmission belt (62), pushing blocks (63), control valves (64), torsion springs (65) and worms (66), wherein the inner sides of the upper parts of the second housings (2) are connected with the three supporting frames (60), the worm wheels (61) are respectively connected to one side, close to each other, of the supporting frames (60), the transmission belt (62) is respectively connected between a feeding guide pipe (3) and an adjacent worm wheel (61) through belt pulleys, the inner sides of the transmission belt (62) are respectively connected with a plurality of pushing blocks (63) which are continuously arranged, the pushing blocks (63) are respectively arranged on one side of the transmission belt (62), the control valves (64) are respectively connected to the feeding guide pipes (3) in a rotating mode, the pushing blocks (63) are respectively matched with the adjacent control valves (64), the torsion springs (65) are respectively connected between the control valves (64) and the adjacent feeding guide pipes (3), the upper parts of the first rotating rods (51) are respectively connected with the worms (66), and the worm wheels (61) are respectively meshed with the worms (66); the first rotating rod (51) can also drive the worm (66) to rotate when rotating, and then the worm wheel (61) can be driven to rotate, the worm wheel (61) can drive the driving belt (62) to operate through the belt pulley, the driving belt (62) can enable the pushing block (63) to move, when the pushing block (63) moves to be in contact with the control valve (64), the control valve (64) can be pushed to rotate and open, and then automatic accurate material dripping is achieved through the cooperation of a plurality of pushing blocks (63) which are continuously arranged and the control valve (64).
2. A tubular reactor for the preparation of polyimide-based materials according to claim 1, further comprising a baffle plate (11), wherein the inner side of the first housing (1) is connected with a plurality of baffle plates (11) for increasing the turbulence of the agitated liquid at uniform intervals of circumference.
3. The tubular reaction kettle based on polyimide preparation according to claim 2, further comprising a plurality of stirring mechanisms (7), wherein the plurality of stirring mechanisms (7) comprise a second rotating rod (70), stirring blades (71), a first gear (72), a second gear (73) and a gear ring (74), three second rotating rods (70) are connected on the first partition plate (21) in a sliding and rotating mode, a stop block is arranged on the upper portion of the second rotating rod (70), the stop block is in contact with the first partition plate (21), the stirring blades (71) are connected to the lower side of the second rotating rod (70), the first gears (72) are connected to the upper side of the second rotating rod (70), the second gears (73) are connected to the upper keys of the first rotating rod (51), the first gears (72) are meshed with the second gears (73), the gear ring (74) are connected to the upper portion of the first rotating rod (51), and the first gears (72) are meshed with the gear ring (74).
4. A tubular reaction kettle based on polyimide preparation according to claim 3, characterized by, still including interception mechanism (8), interception mechanism (8) are including first mounting bracket (80), second servo motor (81), pivot (82) and interception dish (83), first mounting bracket (80) are installed to the downside of second baffle (53), install second servo motor (81) on first mounting bracket (80), be connected with pivot (82) on the output shaft of second servo motor (81), pivot (82) are connected with interception dish (83) through second baffle (53), interception dish (83) are connected with advection pipe (54) rotation and are used for blocking advection pipe (54) upside.
5. The tubular reaction kettle based on polyimide preparation according to claim 4, further comprising a switching mechanism (9), wherein the switching mechanism (9) comprises a second mounting frame (90), an air cylinder (91) and a connecting piece (92), the upper side of the first partition plate (21) is connected with a plurality of second mounting frames (90), the second mounting frames (90) are connected with the air cylinders (91), the telescopic ends of the air cylinders (91) are connected with the connecting piece (92), and the connecting piece (92) is rotationally connected with the adjacent second rotating rods (70); the cylinder (91) is controlled to operate, so that the second rotating rod (70) is driven to move through the connecting piece (92), and the first gear (72) is switched to be meshed with the gear ring (74) and the second gear (73).
6. The tubular reaction kettle based on polyimide preparation according to claim 1, further comprising a heat preservation mechanism (10), wherein the heat preservation mechanism (10) comprises a flow guide pipe (101) and a flange plate (102), the outer side of the first shell (1) is in wound connection with the flow guide pipe (101), and the upper end and the lower end of the flow guide pipe (101) are both connected with the flange plate (102).
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