Fluoroethylene carbonate production equipment

Abstract

The utility model belongs to the technical field of fluoroethylene carbonate, particularly relates to fluoroethylene carbonate production equipment, and aims to solve the problems that chloroethylene carbonate, diethyl carbonate and potassium fluoride are inconvenient to quantify, need to be metered in advance and then added into a reaction kettle in the prior art, and are troublesome, the following scheme is provided: the fluoroethylene carbonate production equipment comprises a bracket, a reaction kettle is fixedly installed on the support, a kettle cover is fixedly installed on the top of the reaction kettle through bolts, a discharging hole is formed in the kettle cover, an installation base is fixedly installed on the top of the kettle cover, a plurality of discharging grooves are formed in the top of the installation base, a groove is formed in the bottom of the installation base, and the groove is communicated with the discharging grooves. Grooves are formed in the feeding grooves, sealing plates are slidably mounted in the grooves, rectangular grooves are formed in the inner walls of the feeding grooves, partition plates are slidably mounted in the rectangular grooves, chloroethylene carbonate, diethyl carbonate and potassium fluoride can be quantitatively fed, and operation is easy and convenient.

Description

Technical Field

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

[0002] Fluoroethylene carbonate is a chemical substance and a major electrolyte additive for lithium-ion batteries. It has better performance in forming SEI films, forms a compact structure layer without increasing impedance, can prevent further decomposition of the electrolyte, and improves the low-temperature performance of the electrolyte. The patent document with authorization announcement number CN208279534U proposes the production steps of fluoroethylene carbonate, which are as follows: adding chloroethylene carbonate, diethyl carbonate and potassium fluoride to a reactor in proportion, controlling the temperature at 80°C, and reacting for five hours. After the reaction, the product is transferred to a rake dryer for drying and distillation separation, controlling the temperature at 100°C, transferring the front fraction diethyl carbonate to the first receiving tank, returning the diethyl carbonate in the first receiving tank to the reactor, collecting the residual potassium chloride in the reactor and taking it out, and transferring the positive fraction with a content of more than 70% to the second receiving tank; the material in the second receiving tank is transferred to the first distillation kettle for rectification, returning the front fraction to the rake dryer, and transferring the positive fraction to the crystallization tank. The temperature is controlled at 10°C for crystallization, the uncrystallized liquid is returned to the first distillation kettle, the crystallized liquid is heated to 40°C to melt, and transferred to the second distillation kettle for distillation, and the positive fraction product is transferred to the product tank.

[0003] In the prior art, it is not convenient to quantify chloroethylene carbonate, diethyl carbonate and potassium fluoride. They need to be measured in advance and then added to the reactor, which is troublesome. Therefore, we propose a fluoroethylene carbonate production equipment to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the problem that it is inconvenient to quantitatively measure chloroethylene carbonate, diethyl carbonate and potassium fluoride, and the measurement needs to be completed in advance and then added into a reaction kettle, which is troublesome. The utility model proposes a fluoroethylene carbonate production device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fluoroethylene carbonate production device comprises a bracket, a reaction kettle is fixedly mounted on the bracket, a kettle cover is fixedly mounted on the top of the reaction kettle by bolts, a discharge hole is provided on the kettle cover, a mounting seat is fixedly mounted on the top of the kettle cover, a plurality of discharge troughs are provided on the top of the mounting seat, a groove is provided on the bottom of the mounting seat, the groove is connected with the plurality of discharge troughs, a sealing plate is slidably mounted in the groove, a rectangular groove is provided on the inner wall of the plurality of discharge troughs, a partition plate is slidably mounted in the plurality of rectangular grooves, a moving mechanism is provided on the mounting seat, and the moving mechanism cooperates with the plurality of partition plates.

[0007] Preferably, the moving mechanism includes a support frame fixedly mounted on the outer side of the mounting seat, a first electric push rod is fixedly mounted on the support frame, and a push plate is fixedly mounted on the output shaft of the first electric push rod.

[0008] Preferably, one end of a push-pull rod is fixedly mounted on one side of the multiple dividing plates, the other ends of the multiple push-pull rods are fixedly connected to the push plates, a circular hole is opened on the inner wall of one side of the multiple rectangular grooves, and the outer side of the push-pull rod contacts the inner wall of the circular hole.

[0009] Preferably, a second electric push rod is fixedly mounted on the outer side of the mounting seat, and an output shaft of the second electric push rod is fixedly connected to the sealing plate.

[0010] Preferably, the reactor is fixedly connected with a discharge pipe, and a valve is provided on the discharge pipe.

[0011] Preferably, the reactor is provided with a heater, and a stirring rod is rotatably installed in the reactor, stirring blades are fixedly installed on the outer side of the stirring rod, and a motor is fixedly installed on the reactor, and the output shaft of the motor is fixedly connected to one end of the stirring rod.

[0012] Compared with the prior art, the advantages of the utility model are:

[0013] Ethylene chlorocarbonate, diethyl carbonate and potassium fluoride are respectively placed in a plurality of discharge troughs, and then the first electric push rod drives the push plate to move in the direction of the mounting seat, the push plate drives the push-pull rod to move, the push-pull rod drives the plurality of dividing plates to move, the plurality of dividing plates divide the ethylene chlorocarbonate, diethyl carbonate and potassium fluoride in the plurality of discharge troughs, and quantitatively perform, and then the second electric push rod drives the sealing plate to move, releases the sealing of the bottom openings of the plurality of discharge troughs, so that the ethylene chlorocarbonate, diethyl carbonate and potassium fluoride under the plurality of dividing plates enter the reactor from the groove and the discharge hole;

[0014] The utility model can quantitatively dose ethylene chlorocarbonate, diethyl carbonate and potassium fluoride, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a fluoroethylene carbonate production device proposed by the utility model;

[0016] Figure 2 This is a partial top view cross-sectional structural schematic diagram of a fluoroethylene carbonate production device proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the top view of the structure of a mounting base of a fluoroethylene carbonate production device proposed by the utility model;

[0018] Figure 4The utility model discloses a side structural diagram of a mounting base, a partition plate, a sealing plate, a push-pull rod and a push plate of a fluoroethylene carbonate production device.

[0019] In the figure: 1. bracket; 2. reaction kettle; 3. kettle cover; 4. discharge hole; 5. mounting seat; 6. discharge trough; 7. groove; 8. sealing plate; 9. rectangular groove; 10. dividing plate; 11. push-pull rod; 12. push plate; 13. support frame; 14. first electric push rod; 15. motor; 16. discharge pipe. DETAILED DESCRIPTION

[0020] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all of the embodiments.

[0021] Embodiment 1

[0022] Reference Figure 1-Figure 4 A fluoroethylene carbonate production device includes a bracket 1, a reaction kettle 2 is fixedly installed on the bracket 1, a kettle cover 3 is fixedly installed on the top of the reaction kettle 2 by bolts, a feed hole 4 is provided on the kettle cover 3, a mounting seat 5 is fixedly installed on the top of the kettle cover 3, a plurality of discharge troughs 6 are provided on the top of the mounting seat 5, a groove 7 is provided at the bottom of the mounting seat 5, the groove 7 is connected with the plurality of discharge troughs 6, a sealing plate 8 is slidably installed in the groove 7, a plurality of discharge troughs 6 are provided with rectangular grooves 9 on the inner walls, a plurality of partition plates 10 are slidably installed in the plurality of rectangular grooves 9, a moving mechanism is provided on the mounting seat 5, and the moving mechanism cooperates with the plurality of partition plates 10.

[0023] In this embodiment, the moving mechanism includes a support frame 13 fixedly mounted on the outer side of the mounting seat 5 , a first electric push rod 14 is fixedly mounted on the support frame 13 , and a push plate 12 is fixedly mounted on the output shaft of the first electric push rod 14 .

[0024] In this embodiment, one end of a push-pull rod 11 is fixedly installed on one side of multiple dividing plates 10, and the other ends of multiple push-pull rods 11 are fixedly connected to the push plate 12. Circular holes are opened on the inner walls of one side of multiple rectangular grooves 9, and the outer sides of the push-pull rods 11 are in contact with the inner walls of the circular holes.

[0025] In this embodiment, a second electric push rod is fixedly mounted on the outer side of the mounting seat 5 , and the output shaft of the second electric push rod is fixedly connected to the sealing plate 8 .

[0026] In this embodiment, a discharge pipe 16 is fixedly connected to the reaction kettle 2 , and a valve is provided on the discharge pipe 16 .

[0027] In this embodiment, a heater is provided on the reactor 2, and a stirring rod is rotatably installed in the reactor 2, stirring blades are fixedly installed on the outer side of the stirring rod, and a motor 15 is fixedly installed on the reactor 2, and the output shaft of the motor 15 is fixedly connected to one end of the stirring rod.

[0028] In this embodiment, when in use, ethylene chloride, diethyl carbonate and potassium fluoride are respectively placed in multiple discharge troughs 6, and then the first electric push rod 14 drives the push plate 12 to move in the direction of the mounting seat 5, the push plate 12 drives the push-pull rod 11 to move, the push-pull rod 11 drives the multiple dividing plates 10 to move, and the multiple dividing plates 10 divide the ethylene chloride, diethyl carbonate and potassium fluoride in the multiple discharge troughs 6. Because the space below the dividing plate 10 and above the sealing plate 8 is fixed, the amount of ethylene chloride, diethyl carbonate and potassium fluoride below the dividing plate 10 and above the sealing plate 8 is fixed, that is, quantitative, and then the second electric push rod drives the sealing plate 8 to move to release the closure of the bottom openings of the multiple discharge troughs 6, so that the ethylene chloride and diethyl carbonate below the multiple dividing plates 10 are and potassium fluoride enter the reactor 2 from the groove 7 and the discharge hole 4, and the stirring rod is driven to rotate by the motor 15 to mix and react ethylene chloride, diethyl carbonate and potassium fluoride. After the reaction is completed, the valve is opened and the product is discharged from the discharge pipe 16, and then the product is transferred to a rake dryer for drying, distillation and separation, and then subjected to subsequent processing. The subsequent specific processing is disclosed in the patent with the authorization announcement number CN208279534U, which is as follows: the product is transferred to a rake dryer for drying, distillation and separation, and the temperature is controlled at 100°C. The front fraction diethyl carbonate is transferred to the first receiving tank, and the diethyl carbonate in the first receiving tank is returned to the reactor, the residual potassium chloride in the reactor is collected and taken away, and the positive fraction with a content of more than 70% is transferred to the second receiving tank; the material in the second receiving tank is transferred to the first distillation reactor for distillation, the front fraction is returned to the rake dryer, and the positive fraction is transferred to the crystallization tank. The temperature is controlled at 10°C for crystallization, the uncrystallized liquid is returned to the first distillation kettle, the crystallized liquid is heated to 40°C to melt, and transferred to the second distillation kettle for distillation, and the positive fraction product is transferred to the product tank.

[0029] Embodiment 2

[0030] The difference from the first embodiment is that a dust cover is hinged on the top of the mounting seat 5. After ethylene chloride, diethyl carbonate and potassium fluoride are respectively placed in a plurality of discharge troughs 6, the dust cover is closed to seal the top opening of the discharge trough 6 to prevent dust and impurities from entering the discharge trough 6.

[0031] The above is only a preferred specific implementation of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, which should be covered by the protection scope of this embodiment.

Claims

1. A fluoroethylene carbonate production device, comprising a support (1), characterized in that: A reaction kettle (2) is fixedly mounted on the bracket (1), a kettle cover (3) is fixedly mounted on the top of the reaction kettle (2) by bolts, a feed hole (4) is provided on the kettle cover (3), a mounting seat (5) is fixedly mounted on the top of the kettle cover (3), a plurality of discharge troughs (6) are provided on the top of the mounting seat (5), a groove (7) is provided on the bottom of the mounting seat (5), the groove (7) is communicated with the plurality of discharge troughs (6), a sealing plate (8) is slidably mounted in the groove (7), the inner walls of the plurality of discharge troughs (6) are provided with rectangular grooves (9), a partition plate (10) is slidably mounted in the plurality of rectangular grooves (9), a moving mechanism is provided on the mounting seat (5), and the moving mechanism cooperates with the plurality of partition plates (10).

2. A fluoroethylene carbonate production equipment according to claim 1, characterized in that: The moving mechanism comprises a support frame (13) fixedly mounted on the outside of the mounting seat (5), a first electric push rod (14) fixedly mounted on the support frame (13), and a push plate (12) fixedly mounted on the output shaft of the first electric push rod (14).

3. A fluoroethylene carbonate production equipment according to claim 2, characterized in that: One end of a push-pull rod (11) is fixedly mounted on one side of the plurality of partition plates (10), the other ends of the plurality of push-pull rods (11) are fixedly connected to the push plate (12), a circular hole is opened on the inner wall of one side of the plurality of rectangular grooves (9), and the outer side of the push-pull rod (11) contacts the inner wall of the circular hole.

4. A fluoroethylene carbonate production equipment according to claim 3, characterized in that: A second electric push rod is fixedly mounted on the outer side of the mounting seat (5), and an output shaft of the second electric push rod is fixedly connected to a sealing plate (8).

5. A fluoroethylene carbonate production equipment according to claim 4, characterized in that: The reaction kettle (2) is fixedly connected with a discharge pipe (16), and a valve is provided on the discharge pipe (16).

6. A fluoroethylene carbonate production equipment according to claim 5, characterized in that: The reactor (2) is provided with a heater, and a stirring rod is rotatably mounted in the reactor (2), a stirring blade is fixedly mounted on the outer side of the stirring rod, and a motor (15) is fixedly mounted on the reactor (2), and an output shaft of the motor (15) is fixedly connected to one end of the stirring rod.

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