Fluoroethylene carbonate synthesizer

Abstract

The utility model discloses a fluoroethylene carbonate synthesizing device which comprises a synthesizing tank, a sealing cover is arranged at the upper end of the synthesizing tank, a supporting frame is fixedly connected to the middle of the upper end of the sealing cover, a driving device is fixedly installed on the top of the supporting frame, and the output end of the driving device is in transmission connection with a second bevel gear. And one side of the bevel gear II is fixedly connected with a feeding blade. Fluoroethylene carbonate in the synthesis tank enters the discharging pipeline through the feeding port, the driving device is started, so that the feeding blade rotates in the discharging pipeline, fluoroethylene carbonate at the bottom of the synthesis tank is conveyed, meanwhile, the bevel gear I drives the bevel gear III to rotate, and the fluoroethylene carbonate at the bottom of the synthesis tank is discharged. The stirring frame is used for stirring the conveyed fluoroethylene carbonate, and the stirring frame is matched with the feeding blade, so that the situation that the effect of irradiating the fluoroethylene carbonate at the bottom of the synthesis tank by an ultraviolet lamp is poor is effectively avoided, and the synthesis efficiency of the synthesis tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluoroethylene carbonate production equipment, in particular to a fluoroethylene carbonate synthesis device. Background Art

[0002] Fluorinated ethylene carbonate is mainly used as an electrolyte additive for lithium-ion batteries. It can form a SEI film with better performance, form a tight structure layer without increasing impedance, prevent further decomposition of the electrolyte, and improve the low-temperature performance of the electrolyte. While reducing battery impedance, it improves the low-temperature performance of the electrolyte, improves the specific capacity, cycle stability and cycle life of lithium batteries, and plays an important role in improving the endurance, service life and safety of lithium-ion batteries. Therefore, the production of fluoroethylene carbonate requires the use of a synthesis device.

[0003] In the prior art, for example, Chinese patent CN217313375U discloses a fluoroethylene carbonate synthesis device, comprising a shell, a sealing cover is installed on one side of the top of the shell by a hinge, a reinforced seal is arranged below the sealing cover, the reinforced seal comprises movable rods symmetrically distributed in the shell walls on both sides of the shell, the movable rods are vertically penetrated in movable grooves opened inside the top ends of the shell walls on both sides of the shell, a pressing port extending to the top wall surfaces of the shell walls on both sides of the shell is connected to the upper part of the movable groove, a spring is fixedly connected between the bottom wall surface of the movable rod and the bottom groove wall of the movable groove, a lifting rod is hinged on the outer surface of the bottom end of the movable rod, one end of the lifting rod passes through a trapezoidal opening connected to one side of the lower end of the movable groove and extends to the interior of the shell, a connecting block is fixedly provided on the upper surface of one end of the lifting rod located inside the shell, a sealing gasket is fixed on the connecting block, and a pressing block is installed on the lower surface of the sealing cover and at a position corresponding to the pressing port.

[0004] At present, most of the fluoroethylene carbonate synthesis devices use ultraviolet light to promote the dropwise reaction of chloroethylene carbonate and potassium fluoride. Most of the existing equipment has the ultraviolet light installed on the top of the synthesis tank, which results in poor irradiation of the fluoroethylene carbonate at the bottom of the synthesis tank, making the synthesis efficiency of the equipment low and inconvenient to use. Summary of the invention

[0005] The purpose of the utility model is to provide a fluoroethylene carbonate synthesis device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a fluoroethylene carbonate synthesis device comprises a synthesis tank, a sealing cover is provided at the upper end of the synthesis tank, a support frame is fixedly connected to the middle part of the upper end of the sealing cover, a driving device is fixedly installed on the top of the support frame, the output end of the driving device is transmission-connected with bevel gear 2, a feeding blade is fixedly connected to one side of the bevel gear 2, a stirring frame is rotatably connected to one side of the outer wall of the feeding blade, a bevel gear 1 is meshed with one side of the bevel gear 2, a bevel gear 3 is meshed with one side of the bevel gear 1, a bevel gear 3 is fixedly connected to one side of the stirring frame, a discharge pipe is rotatably connected to the inner wall of the stirring frame, the inner wall of the discharge pipe is fitted with the other side of the outer wall of the feeding blade, one side of the outer wall of the discharge pipe is fixedly connected to the middle part of the lower end of the synthesis tank, and a feed port is opened through the middle part of the outer wall of the discharge pipe.

[0007] As a further preferred embodiment of the present technical solution, one side of the upper end of the sealing cover is fixedly connected to a pressure relief cylinder, one side of the pressure relief cylinder is fixedly connected to an air outlet pipe, the inner wall of the pressure relief cylinder is slidably connected to a valve flap, the middle part of the valve flap is slidably connected to a sliding rod, one end of the sliding rod is fixedly connected to a mounting plate, and the outer side wall of the sliding rod is sleeved with a return spring.

[0008] As a further preferred embodiment of the present technical solution, a threaded rod is threadedly connected to the middle part of the upper end of the pressure relief cylinder, one end of the threaded rod is rotatably connected to the middle part of the upper end of the mounting plate, and the outer wall of the mounting plate is slidably connected to the inner wall of the pressure relief cylinder.

[0009] As a further preferred embodiment of the present technical solution, an inner liner is fixedly connected to the interior of the synthesis tank, a heating mechanism is fixedly connected to the inner wall of the synthesis tank, and one side of the heating mechanism is in contact with the outer wall of the inner liner.

[0010] As a further preferred embodiment of the present technical solution, the outer side wall of the cover is threadedly connected with a plurality of fixing bolts, one end of the plurality of fixing bolts is threadedly connected to the upper end of the synthesis tank, and a plurality of ultraviolet lamps are fixedly mounted on the lower end of the cover.

[0011] As a further preferred embodiment of the present technical solution, one side of the outer wall of the inner liner is fixedly connected to an air inlet pipe, and the other side of the outer wall of the inner liner is fixedly connected to a feed pipe.

[0012] As a further preferred embodiment of the present technical solution, a valve is fixedly installed on one side of the discharge pipe.

[0013] The utility model provides a fluoroethylene carbonate synthesis device, which has the following beneficial effects:

[0014] (1) The utility model allows fluoroethylene carbonate in a synthesis tank to enter a discharge pipe through a feed port, and turns on a driving device to rotate a feeding blade in the discharge pipe to transport the fluoroethylene carbonate at the bottom of the synthesis tank. At the same time, bevel gear 1 drives bevel gear 3 to rotate, and a stirring rack stirs the transported fluoroethylene carbonate. The mutual cooperation between the stirring rack and the feeding blade effectively prevents the fluoroethylene carbonate at the bottom of the synthesis tank from being irradiated by ultraviolet light, thereby improving the synthesis efficiency of the synthesis tank.

[0015] (2) In the utility model, when ethylene chloride and potassium fluoride are dripped and reacted in the inner tank, the excess gas generated enters the pressure relief cylinder, and the gas pushes the valve disc, and the return spring slowly deforms. When it is pushed to the position of the outlet pipe, the gas is discharged from the outlet pipe, thereby relieving the pressure of the synthesis tank, preventing the synthesis tank from being damaged by the high pressure inside the synthesis tank, and prolonging the service life of the synthesis tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the synthesis tank and the inner liner in the utility model;

[0018] Figure 3 This is a schematic diagram of the connection relationship between the discharge pipe and the stirring frame in the utility model;

[0019] Figure 4 This is a schematic diagram of the connection relationship between the feeding blade and the stirring frame in the utility model;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the pressure relief cylinder in the utility model;

[0021] In the figure: 1. synthesis tank; 2. air inlet pipe; 3. feed pipe; 4. sealing cover; 5. support frame; 6. drive device; 7. fixing bolt; 8. pressure relief cylinder; 9. air outlet pipe; 10. discharge pipe; 11. valve; 12. bevel gear 1; 13. bevel gear 2; 14. bevel gear 3; 15. liner; 16. heating mechanism; 17. stirring frame; 18. feeding blade; 19. feed port; 20. ultraviolet lamp; 21. valve disc; 22. sliding rod; 23. reset spring; 24. mounting plate; 25. threaded rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a technical solution: Figure 1 - Figure 5As shown, in this embodiment, the fluoroethylene carbonate synthesis device includes a synthesis tank 1, a sealing cover 4 is provided on the upper end of the synthesis tank 1, a support frame 5 is fixedly connected to the middle part of the upper end of the sealing cover 4, a driving device 6 is fixedly installed on the top of the support frame 5, an output end of the driving device 6 is transmission-connected to a bevel gear 2 13, a feeding blade 18 is fixedly connected to one side of the bevel gear 2 13, a stirring frame 17 is rotatably connected to one side of the outer wall of the feeding blade 18, a bevel gear 12 is meshed with one side of the bevel gear 12, one side of the bevel gear 12 is rotatably connected to one side of the inner wall of the support frame 5, a bevel gear 3 14 is meshed with one side of the bevel gear 12, one side of the bevel gear 3 14 is fixedly connected to one side of the stirring frame 17, a discharge pipe 10 is rotatably connected to the inner wall of the stirring frame 17, and a discharge pipe 10 is rotatably connected to the inner wall of the stirring frame 17. 0 is fitted with the other side of the outer wall of the feeding blade 18, one side of the outer wall of the discharge pipe 10 is fixedly connected with the middle part of the lower end of the synthesis tank 1, and a feed port 19 is opened in the middle part of the outer wall of the discharge pipe 10, and the fluoroethylene carbonate in the synthesis tank 1 enters the discharge pipe 10 through the feed port 19, and the driving device 6 is turned on to make the feeding blade 18 rotate in the discharge pipe 10 to transport the fluoroethylene carbonate at the bottom of the synthesis tank 1. At the same time, the bevel gear 12 drives the bevel gear 3 14 to rotate, and the stirring frame 17 stirs the transported fluoroethylene carbonate. The mutual cooperation of the stirring frame 17 and the feeding blade 8 effectively avoids the poor irradiation effect of the fluoroethylene carbonate at the bottom of the synthesis tank 1 by the ultraviolet lamp 20, thereby improving the synthesis efficiency of the synthesis tank 1.

[0024] like Figure 1 and Figure 5 As shown, one side of the upper end of the cover 4 is fixedly connected to a pressure relief cylinder 8, one side of the pressure relief cylinder 8 is fixedly connected to an air outlet pipe 9, the inner wall of the pressure relief cylinder 8 is slidably connected to a valve flap 21, the middle part of the valve flap 21 is slidably connected to a sliding rod 22, one end of the sliding rod 22 is fixedly connected to a mounting plate 24, and the outer side wall of the sliding rod 22 is sleeved with a reset spring 23. When ethylene chloride and potassium fluoride are dripped and reacted in the inner tank 15, excess gas generated enters the pressure relief cylinder 8, the gas pushes the valve flap 21, and the reset spring 23 is slowly deformed. When it is pushed to the position of the air outlet pipe 9, the gas is discharged from the air outlet pipe 9, so as to relieve the pressure of the synthesis tank 1, prevent the synthesis tank 1 from being damaged due to high pressure in the synthesis tank 1, and improve the service life of the synthesis tank 1. One end of the air outlet pipe 9 is fixedly connected to one side of the storage box.

[0025] like Figure 5 As shown, a threaded rod 25 is threadedly connected to the middle part of the upper end of the pressure relief cylinder 8, one end of the threaded rod 25 is rotatably connected to the middle part of the upper end of the mounting plate 24, and the outer wall of the mounting plate 24 is slidably connected to the inner wall of the pressure relief cylinder 8. The amount of pressure relief can be adjusted by rotating the threaded rod 25, and can be adjusted according to the actual situation of 1.

[0026] like Figure 2 and Figure 3 As shown, an inner liner 15 is fixedly connected to the interior of the synthesis tank 1, and a heating mechanism 16 is fixedly connected to the inner wall of the synthesis tank 1. One side of the heating mechanism 16 is in contact with the outer wall of the inner liner 15. The temperature inside the inner liner 15 can be controlled by the heating mechanism 16, which can provide a suitable environment during the reaction and improve the reaction efficiency.

[0027] like Figure 1 and Figure 2 As shown, the outer wall of the cover 4 is threadedly connected with a plurality of fixing bolts 7, one end of the plurality of fixing bolts 7 is threadedly connected with the upper end of the synthesis tank 1, and a plurality of ultraviolet lamps 20 are fixedly installed on the lower end of the cover 4. The ultraviolet lamps 20 can accelerate the reaction efficiency of the equipment, and the cover 4 can be removed by the fixing bolts 7.

[0028] like Figure 1 and Figure 2 As shown, one side of the outer wall of the inner liner 15 is fixedly connected to an air inlet pipe 2, and the other side of the outer wall of the inner liner 15 is fixedly connected to a feed pipe 3, and raw materials and gas are added into the inner liner 15 through the air inlet pipe 2 and the feed pipe 3 for reaction.

[0029] like Figure 1 - Figure 3 As shown, a valve 11 is fixedly installed on one side of the discharge pipe 10 , and the fluoroethylene carbonate after the reaction is completed is discharged from the inner tank 15 by rotating the valve 11 .

[0030] The utility model provides a fluoroethylene carbonate synthesis device, and the specific working principle is as follows:

[0031] When fluoroethylene carbonate is produced, ethylene carbonate is first introduced into the inner tank 15 through the feed pipe 3, chlorine gas enters the inner tank 15 through the air inlet pipe 2, and the reaction generates chloroethylene carbonate. Potassium fluoride is then added into the inner tank 15 for dropwise reaction. During the dropwise reaction, the ultraviolet lamp 20 is turned on to promote the reaction, and the heating mechanism 16 is turned on to control the temperature between 45-60° C. At the same time, the fluoroethylene carbonate enters the discharge pipe 10 through the feed port 19, and the driving device 6 is turned on to rotate the feeding blade 18 in the discharge pipe 10 to transport the fluoroethylene carbonate at the bottom of the synthesis tank 1. While rotating 18, the bevel gear 12 drives the bevel gear 3 14 to rotate, and the stirring frame 17 stirs the transported fluoroethylene carbonate so that the fluoroethylene carbonate is evenly irradiated by the ultraviolet lamp 20. When the production is completed, the valve 11 is turned to discharge the fluoroethylene carbonate.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fluoroethylene carbonate synthesis device, comprising a synthesis tank (1), characterized in that: The synthesis tank (1) is provided with a cover (4) at the upper end, a support frame (5) is fixedly connected to the middle of the upper end of the cover (4), a driving device (6) is fixedly installed on the top of the support frame (5), an output end of the driving device (6) is drivingly connected to a second bevel gear (13), a feeding blade (18) is fixedly connected to one side of the second bevel gear (13), a stirring frame (17) is rotatably connected to one side of the outer wall of the feeding blade (18), a bevel gear (12) is meshed with one side of the second bevel gear (13), and a bevel gear (12) is meshed with one side of the support frame (5). The mixing frame (17) is rotatably connected to one side of the inner wall of the mixing frame (5); one side of the bevel gear one (12) is meshed with the bevel gear three (14); one side of the bevel gear three (14) is fixedly connected to one side of the mixing frame (17); the inner wall of the mixing frame (17) is rotatably connected to a discharge pipe (10); the inner wall of the discharge pipe (10) is in contact with the other side of the outer wall of the feeding blade (18); one side of the outer wall of the discharge pipe (10) is fixedly connected to the middle part of the lower end of the synthesis tank (1); and a feed port (19) is provided through the middle part of the outer wall of the discharge pipe (10).

2. The fluoroethylene carbonate synthesis device according to claim 1, characterized in that: One side of the upper end of the sealing cover (4) is fixedly connected to a pressure relief cylinder (8), one side of the pressure relief cylinder (8) is fixedly connected to an air outlet pipe (9), the inner wall of the pressure relief cylinder (8) is slidably connected to a valve flap (21), the middle part of the valve flap (21) is slidably connected to a sliding rod (22), one end of the sliding rod (22) is fixedly connected to a mounting plate (24), and the outer side wall of the sliding rod (22) is sleeved with a return spring (23).

3. The fluoroethylene carbonate synthesis device according to claim 2, characterized in that: A threaded rod (25) is threadedly connected to the middle portion of the upper end of the pressure relief cylinder (8), one end of the threaded rod (25) is rotatably connected to the middle portion of the upper end of the mounting plate (24), and the outer wall of the mounting plate (24) is slidably connected to the inner wall of the pressure relief cylinder (8).

4. The fluoroethylene carbonate synthesis device according to claim 1, characterized in that: An inner liner (15) is fixedly connected to the interior of the synthesis tank (1), a heating mechanism (16) is fixedly connected to the inner wall of the synthesis tank (1), and one side of the heating mechanism (16) is in contact with the outer wall of the inner liner (15).

5. The fluoroethylene carbonate synthesis device according to claim 1, characterized in that: The outer wall of the cover (4) is threadedly connected to a plurality of fixing bolts (7), one end of the plurality of fixing bolts (7) is threadedly connected to the upper end of the synthesis tank (1), and a plurality of ultraviolet lamps (20) are fixedly mounted on the lower end of the cover (4).

6. The fluoroethylene carbonate synthesis device according to claim 4, characterized in that: One side of the outer wall of the inner liner (15) is fixedly connected to an air inlet pipe (2), and the other side of the outer wall of the inner liner (15) is fixedly connected to a feed pipe (3).

7. The fluoroethylene carbonate synthesis device according to claim 1, characterized in that: A valve (11) is fixedly mounted on one side of the discharge pipe (10).

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