Continuous synthesis reaction kettle for fluoroethylene carbonate

Abstract

The utility model discloses a continuous synthesis reaction kettle of fluoroethylene carbonate, which relates to the technical field of synthesis reaction kettles and comprises a reaction kettle, the left side and the right side of the top of the reaction kettle are respectively and fixedly connected with a feed pipe, the front side of the bottom of the reaction kettle is fixedly connected with a discharge pipe, and the front end of the discharge pipe is fixedly connected with a discharge valve. A mounting table is fixedly connected to the middle side of the top of the reaction kettle, a stirring mechanism is arranged at the top of the mounting table, the bottom of the outer wall of the stirring mechanism penetrates into the reaction kettle through the mounting table, and two positioning rings and an annular flow guide plate are arranged in the reaction kettle. The rotating shafts are respectively arranged at the two ends of the stirring rod, so that when the belt connecting ring drives the stirring rod to rotate, materials are driven to flow, the stirring blades on the stirring rod are driven to rotate, raw materials close to the inner side of the reaction kettle are stirred, and the raw materials in the reaction kettle are uniformly mixed.

Description

Technical Field

[0001] This utility model relates to the field of synthetic reaction vessel technology, specifically to a continuous synthetic reaction vessel for fluoroethylene carbonate. Background Technology

[0002] Fluorinated ethylene carbonate is a chemical substance and a primary additive in lithium-ion battery electrolytes. It improves the performance of the SEI film, forming a dense structural layer without increasing impedance, preventing further electrolyte decomposition, and enhancing the low-temperature performance of the electrolyte. There are two main methods for preparing fluoroethylene carbonate: direct fluorination, using fluorine, nitrogen, and ethylene carbonate as raw materials; and halogen exchange, first generating chloroethylene carbonate and then reacting it with a fluorinating agent via a halogen substitution reaction. The existing technologies have the following problems:

[0003] The existing stirring structure in the reactor is relatively simple, and the raw materials near the inner side of the reactor cannot be fully stirred, resulting in uneven mixing. This not only reduces work efficiency but also reduces the reaction effect of the raw materials. Furthermore, during the stirring process, there is no stable structure between the stirring structure and the reactor, which makes it easy for the stirring to become unstable. Utility Model Content

[0004] This invention provides a continuous synthesis reactor for fluoroethylene carbonate to solve the problems existing in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A continuous synthesis reactor for fluoroethylene carbonate includes a reactor with feed pipes fixedly connected to the left and right sides of the top of the reactor, a discharge pipe fixedly connected to the front side of the bottom of the reactor, a discharge valve fixedly connected to the front end of the discharge pipe, an installation platform fixedly connected to the middle side of the top of the reactor, a stirring mechanism provided on the top of the installation platform, and the bottom of the outer wall of the stirring mechanism penetrating into the interior of the reactor through the installation platform. The interior of the reactor is provided with two positioning rings and an annular guide plate.

[0007] A further improvement of this utility model is that: the stirring mechanism includes a drive motor, the output shaft of the drive motor is fixedly connected to a rotating rod, two mounting sleeves are fixedly connected to the outer wall of the rotating rod, four connecting plates are fixedly connected to the outer wall of each of the two mounting sleeves in a circular array, connecting rings are fixedly connected to the outer walls of the upper and lower four connecting plates, four rotating shafts are fixedly connected to the opposite faces of the two connecting rings in a circular array, a stirring rod is rotatably connected to the opposite faces of the upper and lower two rotating shafts, four stirring blades are fixedly connected to the outer wall of the stirring rod in a circular array, and mixing components are respectively provided on the upper and lower sides of the outer wall of the rotating rod near the two connecting rings.

[0008] A further improvement of this utility model is that: both of the two connecting rings have annular grooves on their opposite surfaces, and the two hybrid components have the same structure and are mirror images of each other.

[0009] A further improvement of the present invention is that the hybrid component includes a fixed sleeve, and four connecting blocks are fixedly connected in a ring array to the outer wall of the fixed sleeve, and an inclined lever is fixedly connected to one end of the four connecting blocks away from the fixed sleeve.

[0010] A further improvement of this utility model is that the interior of the fixed sleeve is fixedly connected to the outer wall of the rotating rod.

[0011] A further improvement of this utility model is that: a positioning sleeve is fixedly connected to the top middle side of the reactor, the lower end of the outer wall of the rotating rod passes through the positioning sleeve into the interior of the reactor, and the two connecting rings are both set on the upper and lower sides inside the reactor, and the outer walls of the two positioning rings are respectively fixedly connected to the inner wall of the reactor near the opposite side of the two connecting rings.

[0012] A further improvement of this utility model is that the outer wall of the annular guide plate is fixedly connected to the lower side of the inner wall of the reactor near the feed pipe.

[0013] A further improvement of this utility model is that: annular sliders are fixedly connected to the ends of the two positioning rings that are far apart; the outer wall of the annular sliders is slidably connected to the inside of the annular groove; a number of semicircular grooves are arranged in annular array at the ends of the two annular sliders that are far apart; ball bearings are arranged inside the upper and lower semicircular grooves; and the outer wall of the ball bearings overlaps with the inner wall of the annular groove.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] This invention provides a continuous synthesis reactor for fluoroethylene carbonate. The reactor and stirring mechanism work together to stir the raw materials within the reactor. By setting rotating shafts at both ends of the stirring rod, the rotating rod, driven by a connecting ring, facilitates the flow of materials and causes the stirring blades on the stirring rod to rotate, thus stirring the raw materials near the inner side of the reactor. This ensures uniform mixing of the raw materials within the reactor. This invention solves the problem of existing reactors having relatively simple stirring structures, resulting in insufficient stirring of raw materials near the inner side, leading to uneven mixing, reduced work efficiency, and decreased reaction efficiency. The invention achieves the beneficial effects of facilitating uniform mixing of raw materials, improving work efficiency, and enhancing the reaction efficiency.

[0016] This invention provides a continuous synthesis reactor for fluoroethylene carbonate, employing a combination of a stirring mechanism and positioning rings. Two positioning rings are installed on the inner wall of the reactor. When the stirring mechanism agitates the material, the two positioning rings slide along annular grooves in the connecting ring via annular sliders, thus limiting the position of the connecting ring and improving the stability of the stirring. This solves the problem of unstable stirring caused by the lack of a stable structure between the stirring mechanism and the reactor during the stirring process. The invention achieves the beneficial effect of improving the stability of the stirring mechanism during the stirring process and ensuring the reaction effect of the material. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the continuous synthesis reactor for fluoroethylene carbonate according to this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the stirring mechanism of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the hybrid component of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the three-dimensional structure of the reaction vessel of this utility model;

[0021] Figure 5 This is a partially enlarged schematic diagram of the A-dimensional structure of this utility model.

[0022] In the diagram: 1. Reactor; 101. Positioning sleeve; 2. Feed pipe; 3. Discharge pipe; 4. Discharge valve; 5. Mounting platform; 6. Stirring mechanism; 61. Drive motor; 62. Rotating rod; 63. Mounting sleeve; 64. Connecting plate; 65. Connecting ring; 650. Annular groove; 66. Rotating shaft; 67. Stirring rod; 68. Stirring blade; 69. Mixing component; 691. Fixing sleeve; 692. Connecting block; 693. Inclined baffle; 7. Positioning ring; 71. Annular slider; 710. Semicircular groove; 72. Ball bearing; 8. Annular guide plate. Detailed Implementation

[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0024] like Figure 1 As shown, this utility model provides a continuous synthesis reactor for fluoroethylene carbonate, including a reactor 1. Feed pipes 2 are fixedly connected to the left and right sides of the top of the reactor 1, respectively. A discharge pipe 3 is fixedly connected to the front side of the bottom of the reactor 1. A discharge valve 4 is fixedly connected to the front end of the discharge pipe 3. An installation platform 5 is fixedly connected to the middle side of the top of the reactor 1. A stirring mechanism 6 is provided on the top of the installation platform 5. The bottom of the outer wall of the stirring mechanism 6 penetrates into the interior of the reactor 1 through the installation platform 5. Two positioning rings 7 and annular guide plates 8 are respectively provided inside the reactor 1.

[0025] The reactor is equipped with a reactor 1, a stirring mechanism 6, a positioning ring 7, and an annular guide plate 8. The material is fed into the reactor 1 from the feed pipe 2 along the annular guide plate 8. Through the coordinated operation of the stirring mechanism 6 and the positioning ring 7, the material in the reactor 1 is fully stirred and mixed, ensuring the stability of the stirring process while improving the reaction effect of the raw materials.

[0026] like Figure 2As shown, this utility model provides a continuous synthesis reactor technology for fluoroethylene carbonate: the stirring mechanism 6 includes a drive motor 61, the output shaft of the drive motor 61 is fixedly connected to a rotating rod 62, two mounting sleeves 63 are fixedly connected to the outer wall of the rotating rod 62, and four connecting plates 64 are fixedly connected to the outer wall of each of the two mounting sleeves 63 in a ring array. Connecting rings 65 are fixedly connected to the outer walls of the four connecting plates 64. The rotating rod 62 is connected to the connecting rings 65 through the connecting plates 64, so that the output shaft of the drive motor 61 drives the connecting rings 65 synchronously through the rotating rod 62. The two connecting rings 65 are rotated, and four rotating shafts 66 are fixedly connected to the opposite surfaces of the two connecting rings 65 in a circular array. The two rotating shafts 66 are rotatably connected to the opposite surfaces of the upper and lower rotating shafts 66. Four stirring blades 68 are fixedly connected to the outer wall of the stirring shaft 67 in a circular array. By setting the rotating shafts 66 at both ends of the stirring shaft 67, the stirring blades 68 are rotated along the stirring shaft 67. Mixing components 69 are respectively set on the upper and lower sides of the outer wall of the rotating rod 62 near the two connecting rings 65. The opposite surfaces of the two connecting rings 65 are provided with annular grooves 650. The two mixing components 69 have the same structure and are mirror images of each other.

[0027] like Figure 3 As shown, this utility model provides a continuous synthesis reactor technology for fluoroethylene carbonate: the mixing component 69 includes a fixed sleeve 691, four connecting blocks 692 are fixedly connected to the outer wall of the fixed sleeve 691 in an annular array, and an inclined baffle 693 is fixedly connected to the end of the four connecting blocks 692 away from the fixed sleeve 691. The interior of the fixed sleeve 691 is fixedly connected to the outer wall of the rotating rod 62. The inclined baffle 693 is set outside the fixed sleeve 691 to stir the material in the middle in different directions.

[0028] like Figure 4 As shown, this utility model provides a continuous synthesis reactor technology for fluoroethylene carbonate: a positioning sleeve 101 is fixedly connected to the top center of the reactor 1, and the lower end of the outer wall of the rotating rod 62 passes through the positioning sleeve 101 into the interior of the reactor 1. Two connecting rings 65 are set on the upper and lower sides inside the reactor 1. The outer walls of the two positioning rings 7 are fixedly connected to the inner wall of the reactor 1 on the side near the opposite face of the two connecting rings 65. The two positioning rings 7 are respectively set on the opposite face of the connecting rings 65 to limit the position of the connecting rings 65. The outer wall of the annular guide plate 8 is fixedly connected to the lower side of the inner wall of the reactor 1 near the feed pipe 2. The annular guide plate 8 is set at the opening near the feed pipe 2 to guide the fed material.

[0029] like Figure 5As shown, this utility model provides a continuous synthesis reactor technology for fluoroethylene carbonate: Two positioning rings 7 are each fixedly connected to annular sliders 71 at their far ends. The outer wall of the annular sliders 71 is slidably connected to the inside of annular grooves 650. The positioning rings 7 slide within the annular grooves 650 via the annular sliders 71, thereby positioning the rotation of the connecting ring 65 and improving rotational stability. Several semi-circular grooves 710 are arranged in a circular array at the far ends of the two annular sliders 71. Ball bearings 72 are arranged inside the upper and lower semi-circular grooves 710. The outer walls of the ball bearings 72 overlap with the inner wall of the annular grooves 650. By providing multiple ball bearings 72, the smoothness of the rotation of the connecting ring 65 is increased.

[0030] The working principle of this continuous synthesis reactor for fluoroethylene carbonate will be explained in detail below.

[0031] like Figure 1-5 As shown, in the continuous synthesis reaction of fluoroethylene carbonate using reactor 1, firstly, the stirring mechanism 6 is connected to the power supply via a wire. Appropriate amounts of chlorination reagent and ethylene carbonate are then added into reactor 1 through feed pipe 2. The drive motor 61 is started, and its output shaft drives the upper and lower connecting rings 65 to rotate via rotating rod 62. This causes the annular groove 650 in the connecting ring 65 to slide along the annular slider 71 in the positioning ring 7, driving the ball bearings 72 to roll on the inner wall of the annular groove 650, improving the smoothness of the rotation of the upper and lower connecting rings 65. This, in turn, drives the multiple inclined baffles 69 to move up and down. 3. The materials in the reactor 1 are mixed, and during the flow and collision between the materials, the stirring rod 67 is rotated by the rotating shaft 66, which in turn drives multiple stirring blades 68 to rotate, thereby stirring and mixing the raw materials near the inner side of the reactor 1, so that the raw materials in the reactor 1 are mixed evenly, and the chlorination reaction between the chlorination reagent and ethylene carbonate is carried out to produce chloroethylene carbonate. Then, an appropriate amount of fluorination reagent is added through the feed pipe 2. After stirring, the chloroethylene carbonate and fluorination reagent can be reacted to synthesize fluoroethylene carbonate, thus completing the preparation of fluoroethylene carbonate.

[0032] The specific type and structure of the drive motor 61 used are all existing products, as are the specific circuit connection structure and control relationship, which are all existing technologies and will not be elaborated on here.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A continuous synthesis reactor for fluoroethylene carbonate, comprising a reactor (1), characterized in that: Feed pipes (2) are fixedly connected to the top left and right sides of the reactor (1), and discharge pipes (3) are fixedly connected to the bottom front side of the reactor (1). Discharge valves (4) are fixedly connected to the front end of the discharge pipes (3). Mounting platform (5) is fixedly connected to the top middle side of the reactor (1). A stirring mechanism (6) is provided on the top of the mounting platform (5). The bottom of the outer wall of the stirring mechanism (6) penetrates into the interior of the reactor (1) through the mounting platform (5). Two positioning rings (7) and annular guide plates (8) are respectively provided inside the reactor (1).

2. The continuous synthesis reactor for fluoroethylene carbonate according to claim 1, characterized in that: The stirring mechanism (6) includes a drive motor (61), the output shaft of which is fixedly connected to a rotating rod (62). Two mounting sleeves (63) are fixedly connected to the outer wall of the rotating rod (62). Four connecting plates (64) are fixedly connected to the outer wall of each of the two mounting sleeves (63) in a ring array. Connecting rings (65) are fixedly connected to the outer wall of each of the four connecting plates (64). Four rotating shafts (66) are fixedly connected to the opposite surfaces of the two connecting rings (65) in a ring array. A stirring rod (67) is rotatably connected to the opposite surfaces of the two rotating shafts (66). Four stirring blades (68) are fixedly connected to the outer wall of the stirring rod (67) in a ring array. Mixing components (69) are respectively provided on the upper and lower sides of the outer wall of the rotating rod (62) near the two connecting rings (65).

3. The continuous synthesis reactor for fluoroethylene carbonate according to claim 2, characterized in that: Both of the two connecting rings (65) have annular grooves (650) on their opposite surfaces, and the two hybrid components (69) have the same structure and are mirror images of each other.

4. The continuous synthesis reactor for fluoroethylene carbonate according to claim 3, characterized in that: The hybrid component (69) includes a fixed sleeve (691), and four connecting blocks (692) are fixedly connected to the outer wall of the fixed sleeve (691) in an annular array. An inclined lever (693) is fixedly connected to one end of the four connecting blocks (692) away from the fixed sleeve (691).

5. The continuous synthesis reactor for fluoroethylene carbonate according to claim 4, characterized in that: The inside of the fixed sleeve (691) is fixedly connected to the outer wall of the rotating rod (62).

6. The continuous synthesis reactor for fluoroethylene carbonate according to claim 2, characterized in that: A positioning sleeve (101) is fixedly connected to the top middle side of the reactor (1). The lower end of the outer wall of the rotating rod (62) passes through the positioning sleeve (101) into the interior of the reactor (1). The two connecting rings (65) are both set on the upper and lower sides inside the reactor (1). The outer walls of the two positioning rings (7) are respectively fixedly connected to the inner wall of the reactor (1) on the side close to the opposite side of the two connecting rings (65).

7. The continuous synthesis reactor for fluoroethylene carbonate according to claim 1, characterized in that: The outer wall of the annular guide plate (8) is fixedly connected to the lower side of the inner wall of the reactor (1) near the feed pipe (2).

8. The continuous synthesis reactor for fluoroethylene carbonate according to claim 1, characterized in that: An annular slider (71) is fixedly connected to the far ends of the two positioning rings (7). The outer wall of the annular slider (71) is slidably connected to the inside of the annular groove (650). Several semi-circular grooves (710) are arranged in annular array at the far ends of the two annular sliders (71). Balls (72) are arranged inside the upper and lower semi-circular grooves (710). The outer wall of the balls (72) overlaps with the inner wall of the annular groove (650).

Images