CN218166020U

CN218166020U - Pyromellitic acid cooling crystallization structure

Info

Publication number: CN218166020U
Application number: CN202222128489.3U
Authority: CN
Inventors: 孙海峰; 刘珂; 杨学城
Original assignee: Boshan Hengtai Chemical Plant
Current assignee: Boshan Hengtai Chemical Plant
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-12-30
Anticipated expiration: 2032-08-12

Abstract

The utility model relates to a pyromellitic acid preparation technical field especially relates to a pyromellitic acid cooling crystallization structure, and it includes heat-preserving container, (mixing) shaft, arranges material pipe, storage vat and pull rod. A sleeve is arranged on a top cover of the heat-preserving barrel, a large gear is arranged on the sleeve, and a turntable is arranged at the bottom of the sleeve. The stirring shaft is symmetrically and rotatably arranged on the rotary table, the top end of the stirring shaft is provided with small gears, the small gears on the two sides are meshed and connected with the large gear, and the stirring shaft is provided with propeller blades. A refrigerating component is arranged on the bottom plate of the heat-preserving barrel. Arrange the material pipe and set up in the heat-preserving container, arrange the input of material pipe and insert in the storage vat, set up the filling tube on the storage vat. The pull rod is arranged in the feeding pipe in a sliding mode and connected with the plugging pipe, the lower end of the plugging pipe is inserted into the discharging pipe and connected with the discharging pipe in a sliding mode, and the plugging pipe is provided with a plurality of liquid discharging holes and a crystal discharging hole. The top end of the pull rod is provided with a push plate, and the hydraulic cylinder drives the push plate to be connected. The utility model discloses inside cooling is even, and the crystal is appeared the size and is even and efficient.

Description

Pyromellitic acid cooling crystallization structure

Technical Field

The utility model relates to a pyromellitic acid preparation technical field especially relates to a pyromellitic acid cooling crystal structure.

Background

Pyromellitic acid is a white to yellowish powdery crystal in appearance, having a melting point of 276 ℃ (anhydrous), 242 ℃ (with 2 molecules of crystal water), and a relative density of 1.79. Easily soluble in alcohol and slightly soluble in ether and water. Pyromellitic acid is used for synthesizing polyimide, octyl pyromellitate, etc. and is the main material for producing extinction curing agent.

Chinese patent with publication number CN214210174U discloses a pyromellitic acid production preparation facilities, and this utility model matches through motor, puddler, hot plate, baffle, rose box and cooling bucket, has solved current pyromellitic acid production preparation facilities self and has been not convenient for carry out hot filtration, be not convenient for take out the filter residue and the slow production efficiency low problem of natural cooling crystallization process to the mixed liquid after the stirring.

However, the device still has the following defects: after the crystal pyromellitic acid is separated from the liquid, the taking out of the crystal is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pyromellitic acid cooling crystal structure to the problem that exists among the background art.

The technical scheme of the utility model: the utility model provides a pyromellitic acid cooling crystallization structure, includes heat-preserving container, (mixing) shaft, leads cold plate, arranges material pipe, storage vat and pull rod. The top cover of the heat-preserving bucket is provided with a sleeve which is rotationally connected with the heat-preserving bucket, the top cover is provided with a driving assembly which drives the sleeve to rotate, one end of the sleeve inserted into the heat-preserving bucket is provided with a large gear, and the bottom of the sleeve is provided with a turntable which is rotationally connected with the inner wall of the heat-preserving bucket. The stirring shaft is symmetrically and rotatably arranged on the rotary table, the top end of the stirring shaft is provided with small gears, the small gears on the two sides are meshed and connected with the large gear, and the stirring shaft is provided with propeller blades. Lead the cold drawing setting on the bottom plate of heat-preserving container, set up the refrigeration subassembly on the bottom plate of heat-preserving container, the refrigeration subassembly is located the inboard of leading the cold drawing, and the cold junction output of refrigeration subassembly and the inner wall laminating of leading the cold drawing. Arrange the material pipe and set up in the heat-preserving container, arrange the outside that the output of material pipe stretches out the heat-preserving container. The storage vat sets up in the heat-preserving container, arranges the input of material pipe and inserts in the storage vat and rather than inside intercommunication, and the upper end of storage vat sets up the filling tube rather than inside intercommunication, and the filling tube is located sheathed tube inboard and rather than rotating and be connected. The pull rod slides and sets up in the feed pipe, and the shutoff pipe is connected to the bottom of pull rod, and the lower extreme of shutoff pipe inserts row's material pipe inside and rather than sliding connection, and the outer wall of shutoff pipe and the inner wall of arranging the material pipe sealed cooperation, sets up the decurrent bin outlet of opening in the shutoff pipe, sets up a plurality of liquid discharge holes and crystal unloading hole on the shutoff pipe, and crystal unloading hole site is in the below of liquid discharge hole. The top of pull rod sets up the push pedal, sets up the pneumatic cylinder on the top cap of heat-preserving container, and the push pedal is connected in the pneumatic cylinder drive.

Preferably, the bottom of heat-preserving container sets up the support, and the bottom of support sets up the bottom plate, and the bottom of bottom plate sets up the universal wheel, sets up the auto-lock subassembly on the universal wheel.

Preferably, the driving assembly comprises a motor, a gear A and a gear B, the gear A is connected with the output end of the motor, the gear B is sleeved on the sleeve and fixedly connected with the sleeve, and the gear A is meshed with the gear B.

Preferably, the refrigeration assembly comprises refrigeration pieces and heat dissipation fins, the cold ends of the refrigeration pieces are attached to the inner wall of the cold conducting plate, the hot ends of the refrigeration pieces are provided with heat conducting rods, and the other ends of the heat conducting rods extend out of the heat preservation barrel and are connected with the heat dissipation fins.

Preferably, the bottom plate of the heat-preserving container is rotatably provided with a supporting seat, the supporting seat is positioned on the inner side of the cold guide plate, and the side surface of the supporting seat is provided with a plurality of guide plates. The supporting seat is provided with a supporting plate, and the bottoms of the stirring shafts at two sides are respectively connected with the corresponding side supporting plates in a rotating way.

Preferably, a vertical plate is arranged on a top cover of the heat-preserving barrel, a sliding groove is formed in the vertical plate, and one end, far away from the pull rod, of the push plate is inserted into the sliding groove and is in sliding connection with the sliding groove.

Preferably, still include controller and temperature sensor, temperature sensor's sense terminal is located the heat-preserving container and is located the liquid level below, and temperature sensor and controller communication are connected.

Compared with the prior art, the utility model discloses following profitable technological effect has:

through setting up gear wheel drive pinion and carousel and rotating, make (mixing) shaft and spiral stirring rake both revolve round the gear wheel revolution, the rotation at a high speed simultaneously makes the high-speed flow of coolant liquid in the heat-preserving container, and then makes the more quick equilibrium of its each layer liquid temperature to make the inside each layer temperature of storage vat balanced, make the crystal appear out the size even. Through setting up and leading the cold drawing, the low temperature of refrigeration piece output is conducted the coolant liquid through leading the cold drawing, realizes trading the temperature fast to the coolant liquid. Through set up gliding shutoff pipe in arranging the material intraductal, set up liquid discharge hole and crystal unloading hole on the shutoff pipe, when the shutoff pipe goes up the flare-out and exposes liquid discharge hole, liquid discharge continues to pull up the shutoff pipe afterwards, makes crystal unloading hole expose, and what discharge this moment is the crystal, and the crystal is got the material and is convenient quick, the utility model discloses the new height of overall stability, convenient operation is fit for promoting.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a connection diagram of various mechanisms inside the heat-preserving container in FIG. 1;

FIG. 3 is a driving structure diagram of a plugging pipe in the storage vat;

fig. 4 is a structural view of a plugging tube.

Reference numerals: 1. a base plate; 2. a support; 3. a heat-preserving barrel; 4. a sleeve; 5. a drive assembly; 6. a bull gear; 7. a turntable; 8. a stirring shaft; 9. a pinion gear; 10. a propeller blade; 11. a cold conducting plate; 12. a refrigeration assembly; 13. a supporting base; 14. a support plate; 15. a discharge pipe; 16. a storage barrel; 17. a feed tube; 18. a pull rod; 19. plugging the pipe; 20. a liquid discharge hole; 21. a crystal blanking aperture; 22. pushing the plate; 23. and a hydraulic cylinder.

Detailed Description

Example one

As shown in FIGS. 1-4, the utility model provides a pyromellitic acid cooling crystallization structure, including heat-preserving container 3, (mixing) shaft 8, (mixing) shaft, lead cold plate 11, arrange material pipe 15, storage vat 16 and pull rod 18. The top cover of the heat-preserving container 3 is provided with a sleeve 4 which is rotationally connected with the heat-preserving container, the top cover is provided with a driving component 5 for driving the sleeve 4 to rotate, one end of the sleeve 4 inserted into the heat-preserving container 3 is provided with a gearwheel 6, and the bottom of the sleeve 4 is provided with a turntable 7 which is rotationally connected with the inner wall of the heat-preserving container 3. The (mixing) shaft 8 symmetry rotates and sets up on carousel 7, and the top of (mixing) shaft 8 sets up pinion 9, and both sides pinion 9 all are connected with gear wheel 6 meshing, sets up propeller blade 10 on the (mixing) shaft 8. Lead cold drawing 11 and set up on the bottom plate of heat-preserving container 3, set up refrigeration subassembly 12 on the bottom plate of heat-preserving container 3, refrigeration subassembly 12 is located the inboard of leading cold drawing 11, and the cold junction output of refrigeration subassembly 12 and the inner wall laminating of leading cold drawing 11. Arrange material pipe 15 and set up in heat-preserving container 3, arrange the outside that material pipe 15's output stretches out heat-preserving container 3. Storage vat 16 sets up in heat-preserving container 3, arranges the input of material pipe 15 and inserts in storage vat 16 and rather than inside intercommunication, and the upper end of storage vat 16 sets up the filling tube 17 rather than inside intercommunication, and filling tube 17 is located the inboard of sleeve pipe 4 and is connected rather than rotating. The pull rod 18 is arranged in the feeding pipe 17 in a sliding mode, the bottom of the pull rod 18 is connected with the blocking pipe 19, the lower end of the blocking pipe 19 is inserted into the discharging pipe 15 and is connected with the discharging pipe in a sliding mode, the outer wall of the blocking pipe 19 is matched with the inner wall of the discharging pipe 15 in a sealing mode, the discharging hole with the downward opening is formed in the blocking pipe 19, the blocking pipe 19 is provided with a plurality of liquid discharging holes 20 and a crystal discharging hole 21, and the crystal discharging hole 21 is located below the liquid discharging holes 20. The top end of the pull rod 18 is provided with a push plate 22, the top cover of the heat-insulating barrel 3 is provided with a hydraulic cylinder 23, and the hydraulic cylinder 23 drives the connecting push plate 22.

In this embodiment, the mixed liquid is injected into the storage barrel 16 through the feed pipe 17, the refrigeration assembly 12 is started, the refrigeration assembly refrigerates and rapidly transfers low temperature to the cold guide plate 11, the cold guide plate 11 rapidly exchanges heat with the cooling liquid in the heat-insulating barrel 3 to rapidly cool the cooling liquid, the driving assembly 5 is simultaneously started, the driving assembly drives the sleeve 4 to rotate so as to rotate the electric turntable 7 and the gearwheel 6, the gearwheel 6 drives the pinion 9 to rotate so as to drive the stirring shaft 8 and the propeller 10 to rotate, the propeller rapidly rotates so as to cause the cooling liquid to flow at a high speed, so that the temperatures of all layers of the cooling liquid are balanced and consistent, the low temperature is transferred to the mixed liquid inside the storage barrel 16 through the storage barrel 16, pyromellitic acid in the mixed liquid is rapidly separated out and is in a crystal shape, after the separation is completed, the hydraulic cylinder 23 is started to pull up the pull rod 18, the pull rod 18 pulls up the plugging pipe 19 to expose the liquid discharge hole 20, at this time, the liquid is discharged, and then the plugging pipe 19 is continuously pulled up, so as to expose the crystal discharge hole 21, and the crystal is discharged.

Example two

As shown in fig. 2, the utility model provides a pyromellitic acid cooling crystal structure compares in embodiment one, rotates on heat-preserving container 3's the bottom plate and sets up supporting seat 13, and supporting seat 13 is located the inboard of leading cold drawing 11, and the side of supporting seat 13 sets up a plurality of deflectors. The supporting seat 13 is provided with a supporting plate 14, and the bottoms of the stirring shafts 8 at two sides are respectively rotatably connected with the corresponding side supporting plates 14.

In this embodiment, the backup pad 14 on the supporting seat 13 plays stable effect to the (mixing) shaft 8, can drive the supporting seat 13 simultaneously and rotate when the (mixing) shaft 8 revolves, and the deflector at the edge of the supporting seat 13 will lead the inboard cold water of cold plate 11 to dredge upwards, with higher speed the cooling of coolant liquid and temperature balance.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.

Claims

1. A pyromellitic acid cooling crystallization structure is characterized by comprising a heat-insulating barrel (3), a stirring shaft (8), a cold guide plate (11), a discharge pipe (15), a storage barrel (16) and a pull rod (18);

a sleeve (4) rotationally connected with the top cover of the heat-preserving barrel (3) is arranged on the top cover, a driving component (5) for driving the sleeve (4) to rotate is arranged on the top cover, a large gear (6) is arranged at one end of the sleeve (4) inserted into the heat-preserving barrel (3), and a turntable (7) rotationally connected with the inner wall of the heat-preserving barrel (3) is arranged at the bottom of the sleeve (4); the stirring shaft (8) is symmetrically and rotatably arranged on the turntable (7), the top end of the stirring shaft (8) is provided with a small gear (9), the small gears (9) on the two sides are meshed and connected with the large gear (6), and the stirring shaft (8) is provided with a propeller blade (10); the cold guide plate (11) is arranged on a bottom plate of the heat-preserving barrel (3), the bottom plate of the heat-preserving barrel (3) is provided with a refrigeration assembly (12), the refrigeration assembly (12) is positioned on the inner side of the cold guide plate (11), and the cold end output end of the refrigeration assembly (12) is attached to the inner wall of the cold guide plate (11);

the discharge pipe (15) is arranged in the heat-insulating barrel (3), and the output end of the discharge pipe (15) extends out of the heat-insulating barrel (3); the storage barrel (16) is arranged in the heat-insulating barrel (3), the input end of the discharge pipe (15) is inserted into the storage barrel (16) and is communicated with the interior of the storage barrel, the upper end of the storage barrel (16) is provided with a feed pipe (17) communicated with the interior of the storage barrel, and the feed pipe (17) is positioned on the inner side of the sleeve (4) and is rotationally connected with the sleeve;

the pull rod (18) is arranged in the feeding pipe (17) in a sliding mode, the bottom of the pull rod (18) is connected with the blocking pipe (19), the lower end of the blocking pipe (19) is inserted into the discharging pipe (15) and is connected with the discharging pipe in a sliding mode, the outer wall of the blocking pipe (19) is in sealing fit with the inner wall of the discharging pipe (15), the discharging hole with a downward opening is formed in the blocking pipe (19), the blocking pipe (19) is provided with a plurality of liquid discharging holes (20) and crystal discharging holes (21), and the crystal discharging holes (21) are located below the liquid discharging holes (20); the top end of the pull rod (18) is provided with a push plate (22), the top cover of the heat-preserving barrel (3) is provided with a hydraulic cylinder (23), and the hydraulic cylinder (23) is driven to be connected with the push plate (22).

2. The pyromellitic acid cooling and crystallizing structure according to claim 1, wherein a support (2) is arranged at the bottom of the heat-insulating barrel (3), a bottom plate (1) is arranged at the bottom of the support (2), a universal wheel is arranged at the bottom of the bottom plate (1), and a self-locking assembly is arranged on the universal wheel.

3. The pyromellitic acid cooling crystallization structure according to claim 1, wherein the driving assembly (5) comprises a motor, a gear a and a gear B, the gear a is connected with an output end of the motor, the gear B is sleeved on the sleeve (4) and fixedly connected with the sleeve, and the gear a is engaged with the gear B.

4. The pyromellitic acid cooling crystallization structure according to claim 1, wherein the cooling component (12) comprises a cooling sheet and heat dissipating fins, the cold end of the cooling sheet is attached to the inner wall of the cold conducting plate (11), the hot end of the cooling sheet is provided with a heat conducting rod, and the other end of the heat conducting rod extends out of the heat insulating barrel (3) and is connected with the heat dissipating fins.

5. The pyromellitic acid cooling and crystallizing structure according to claim 1, wherein a supporting base (13) is rotatably disposed on the bottom plate of the heat-preserving container (3), the supporting base (13) is disposed inside the cold guide plate (11), and a plurality of guide plates are disposed on the side surface of the supporting base (13); supporting plates (14) are arranged on the supporting seats (13), and the bottoms of the stirring shafts (8) on the two sides are respectively rotatably connected with the corresponding side supporting plates (14).

6. The pyromellitic acid cooling crystallization structure of claim 1, wherein a top cover of the heat-insulating barrel (3) is provided with a vertical plate, the vertical plate is provided with a sliding groove, and one end of the push plate (22) far away from the pull rod (18) is inserted into the sliding groove and is in sliding connection with the sliding groove.

7. The pyromellitic acid cooling and crystallizing structure according to claim 1, further comprising a controller and a temperature sensor, wherein the detection end of the temperature sensor is located in the heat-insulating barrel (3) and below the liquid level, and the temperature sensor is in communication connection with the controller.