Fluoroethylene carbonate purification device

Abstract

The utility model relates to the technical field of purification equipment, and discloses a fluoroethylene carbonate purification device which comprises a mixing box, the bottom of the mixing box is fixedly connected with a filter box, the bottom of the filter box is fixedly connected with a pump body, the output end of the pump body is fixedly connected with a conveying pipe, and the water outlet end of the conveying pipe is fixedly connected with a distillation flask. A first motor is fixedly connected to the rear end of the top of the mixing box, a rotating rod is fixedly connected to the output end of the first motor, a driving gear is fixedly connected to the outer ring of the bottom of the rotating rod, and a driven gear is connected to the outer wall of the driving gear in an engaged mode. The first motor drives the driving belt pulley and the belt to drive the driven belt pulley to rotate, the first stirring rod is driven to rotate, the driving gear and the driven gear drive the second stirring rod to rotate, and full contact between fluoroethylene carbonate and anhydrous sodium sulfate can be ensured through stirring; the uniformity of reactants is improved, and the reaction efficiency and the yield are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to purification equipment technical field, concretely is a fluorinated ethylene carbonate purification device. BACKGROUND

[0002] Fluorinated ethylene carbonate is a main lithium ion battery electrolyte additive, and the performance of forming SEI film is better, forms a precise structure layer and does not increase impedance, can prevent electrolyte from further decomposition, and has flame retardant effect, and battery cycle life is improved while safety performance is significantly increased.

[0003] The original production process is that chloroethylene carbonate (CEC) and potassium fluoride (KF) are replaced to generate crude FEC, the crude FEC is centrifuged and filtered, is subjected to crude distillation, flash distillation (or preliminary rectification process) to crystallize and purify FEC product, and then the FEC is purified again by rectification to obtain the final product,

[0004] Anhydrous sodium sulfate cannot be in uniform contact with fluorinated ethylene carbonate, which can cause moisture to be effectively adsorbed. This will affect the purity of fluorinated ethylene carbonate and the efficiency of subsequent reactions. In the case of uneven mixing, part of the moisture and other impurities can be left in the final product, reducing the quality of the product.

[0005] In view of the above problems, a fluorinated ethylene carbonate purification device is proposed. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a fluorinated ethylene carbonate purification device, which solves the problem that anhydrous sodium sulfate cannot be in uniform contact with fluorinated ethylene carbonate, which can cause moisture to be effectively adsorbed. This will affect the purity of fluorinated ethylene carbonate and the efficiency of subsequent reactions. In the case of uneven mixing, part of the moisture and other impurities can be left in the final product, reducing the quality of the product.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a fluorinated ethylene carbonate purification device, including the mixing box, the mixing box bottom fixedly connected with the filter box, the filter box bottom fixedly connected with the pump body, the pump body output fixedly connected with the delivery tube, the delivery tube water outlet fixedly connected with the distillation flask, the mixing box top rear end fixedly connected with the first motor, the first motor output fixedly connected with the rotating rod, the rotating rod bottom outer ring fixedly connected with the driving gear, the driving gear outer wall meshing connection has the driven gear, the rotating rod top outer ring fixedly connected with the driving pulley, the mixing box front end inside rotationally connected with the rotating column, and rotating column with driven gear inside rotationally connected, the rotating column top outer ring fixedly connected with the driven pulley, the driving pulley with driven pulley between being arranged with the belt, the driven gear bottom fixedly connected with the first stirring rod of evenly distributed, the rotating column bottom fixedly connected with the second stirring rod of evenly distributed, the filter box inside being provided with filter assembly.

[0008] Through the above technical scheme, the fluorinated ethylene carbonate raw material contains moisture or other impurities, can pass through the drying agent (such as anhydrous sodium sulfate) and be dried, and the first stirring rod and the second stirring rod are used to stir and fuse.

[0009] As a further description of the above technical scheme: the filter assembly includes an electric sliding rail, the electric sliding rail is fixedly connected to the inner walls of the front and rear ends of the filter box, and the outer wall of the electric sliding rail is slidably connected with a sliding block.

[0010] Through the above technical scheme, the sliding block is limited and controlled by the limiting blocks on the left and right sides of the electric sliding rail.

[0011] As a further description of the above technical scheme: the inner walls of the front and rear ends of the right side of the filter box are provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a sliding block, and the sliding blocks are fixedly connected with a scrap box.

[0012] Through the above technical scheme, the scrap box is taken out through the sliding groove and the sliding block.

[0013] As a further description of the above technical scheme: the top of the distillation flask is fixedly connected with a connecting pipe, and the one end of the connecting pipe is fixedly connected with a bearing bottle.

[0014] Through the above technical scheme, the fluorinated ethylene carbonate distilled is transported through the connecting pipe and the bearing bottle.

[0015] As a further description of the above technical scheme: the rear end of the sliding block at the front end is fixedly connected with a second motor, and the output end of the second motor is fixedly connected with a groove box.

[0016] By adopting the technical scheme, the impurities on the filter screen plate are poured into the scrap box by rotating the groove box driven by the second motor, the groove box rear end has a supporting rod, and the supporting rod is rotationally connected with the rear end sliding block.

[0017] As a further description of the above technical scheme: the front and rear ends of the groove box are fixedly connected with springs, and the top of the spring is fixedly connected with a filter screen plate.

[0018] By adopting the technical scheme, the filter screen plate and the spring are added to increase the shaking.

[0019] As a further description of the above technical scheme: the front and rear ends of the groove box are fixedly connected with springs, and the top of the spring is fixedly connected with a filter screen plate.

[0020] By adopting the technical scheme, the third motor is fixedly supported by the front end supporting disc.

[0021] As a further description of the above technical scheme: the third motor output end is fixedly connected with a rotating rod, and the front and rear ends of the rotating rod are fixedly connected with cams.

[0022] By adopting the technical scheme, the rotating rod and the cam are rotated by the third motor.

[0023] Compared with the prior art, the utility model has the advantages that:

[0024] 1. The fluorinated ethylene carbonate purification device provided by the utility model firstly rotates the driven pulley by the driving pulley and the belt driven by the first motor, drives the first stirring rod to rotate, drives the second stirring rod to rotate by the driving gear and the driven gear, uniformly stirs the fluorinated ethylene carbonate and anhydrous sodium sulfate, can ensure the sufficient contact between the fluorinated ethylene carbonate and the anhydrous sodium sulfate, increases the uniformity of reactants, and improves the reaction efficiency and yield.

[0025] 2. The fluorinated ethylene carbonate purification device provided by the utility model rotates the rotating rod by the third motor, drives the cam to rotate, upwardly jacks up the filter screen plate, filters, and the filter plate can effectively remove the solid impurities or insoluble substances, reduces the influence of impurities on subsequent reactions or products, and ensures that the chemical substances after reaction are in a high-purity state. DRAWINGS

[0026] Figure 1 It is a whole structure schematic view of the utility model;

[0027] Figure 2 It is a whole structure schematic view of the utility model;

[0028] Figure 3 It is a structure schematic view of the first motor of the utility model;

[0029] Figure 4 It is an explosion structure schematic view of the electric slide rail of the utility model.

[0030] In the figure: 1, mixing box; 2, filter box; 3, conveying pipe; 4, pump body; 5, bearing bottle; 6, distillation flask; 7, connecting pipe; 8, first motor; 9, rotating column; 10, electric slide rail; 11, sliding groove; 12, sliding block; 13, scrap box; 14, driven pulley; 15, driven gear; 16, first stirring rod; 17, second stirring rod; 18, sliding block; 19, second motor; 20, recess box; 21, filter screen plate; 22, spring; 23, support disc; 24, cam; 25, third motor; 26, rotating rod; 27, driving pulley; 28, rotating rod; 29, driving gear; 30, belt. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0032] For further understanding the contents of the utility model, the utility model is described in detail with reference to the drawings.

[0033] With reference to Figure 1 The utility model discloses a fluorinated ethylene carbonate purification device, including mixing box 1, the bottom fixed connection of mixing box 1 has filter box 2, and fluorinated ethylene carbonate is handled through filter box 2, and the bottom fixed connection of filter box 2 has pump body 4, and the output end fixed connection of pump body 4 has conveying pipe 3, and fluorinated ethylene carbonate is transported after being filtered and dried through pump body 4, and liquid is transported to distillation flask 6 inside through pump body 4 and is distilled, and conveying pipe 3 has check valve inside, can enter, but does not come out, and the water outlet end fixed connection of conveying pipe 3 has distillation flask 6, and distillation flask 6 is heated, and is distilled, and the top fixed connection of distillation flask 6 has connecting pipe 7, and the one end fixed connection of connecting pipe 7 has bearing bottle 5, and the liquid of good distillation is carried through connecting pipe 7 and bearing bottle 5.

[0034] With reference to Figure 2 and Figure 3The first motor 8 is fixedly connected to the top rear end of the mixing box 1, the output end of the first motor 8 is fixedly connected with a rotating rod 28, the outer circle of the bottom of the rotating rod 28 is fixedly connected with a driving gear 29, the rotating rod 28 is driven to rotate by the first motor 8, the driving gear 29 and the driving pulley 27 are driven to rotate, the driving pulley 27 and the belt 30 drive the driven pulley 14 to rotate, the rotating column 9 is driven to rotate, the second stirring rod 17 at the bottom is driven to rotate, the outer wall of the driving gear 29 is engaged with the driven gear 15, the driving gear 29 and the driven gear 15 are engaged, the driven gear 15 is driven to rotate, the first stirring rod 16 is driven to rotate through the rotation of the driven gear 15, the ethylene carbonate fluoride and the anhydrous sodium sulfate are fused, the top outer circle of the rotating rod 28 is fixedly connected with the driving pulley 27, the front end of the mixing box 1 is rotatably connected with the rotating column 9, and the rotating column 9 is rotatably connected with the driven gear 15, the outer circle of the top of the rotating column 9 is fixedly connected with the driven pulley 14, the belt 30 is arranged between the driving pulley 27 and the driven pulley 14, the driving pulley 27 and the belt 30 drive the driven pulley 14 to rotate, the bottom of the driven gear 15 is fixedly connected with the first stirring rod 16 which is uniformly distributed, the first stirring rod 16 is reversely rotated, the bottom of the rotating column 9 is fixedly connected with the second stirring rod 17 which is uniformly distributed, and the second stirring rod 17 is forwardly rotated.

[0035] Referring to Figure 4 The filter assembly is arranged in the filter box 2, the filter assembly comprises an electric sliding rail 10, the filter box 2 and the mixing box 1 are connected through a hopper, and the conveying is controlled through an electromagnetic valve, the electric sliding rail 10 is fixedly connected to the inner walls of the front and rear ends of the filter box 2, the outer wall of the electric sliding rail 10 is slidably connected with a sliding block 18, the inner walls of the front and rear ends of the right side of the filter box 2 are both provided with a sliding groove 11, the inner wall of the sliding groove 11 is slidably connected with a sliding block 12, the sliding blocks 12 are fixedly connected with a scrap box 13, the scrap box 13 is pulled out through the sliding groove 11 and the sliding block 12, and impurities are cleaned, the front end of the sliding block 18 is fixedly connected with a second motor 19, the output end of the second motor 19 is fixedly connected with a recessed box 20, the inner walls of the front and rear ends of the recessed box 20 are both fixedly connected with a spring 22, the top of the spring 22 is fixedly connected with a filter screen plate 21, the spring 22 and the filter screen plate 21 filter impurities, the bottom of the front and rear ends of the recessed box 20 is both fixedly connected with a supporting disc 23, the inner wall of the front end of the supporting disc 23 is fixedly connected with a third motor 25, the output end of the third motor 25 is fixedly connected with a rotating rod 26, the front and rear ends of the rotating rod 26 are both fixedly connected with a cam 24, the third motor 25 drives the rotating rod 26 to rotate, the front and rear ends of the rotating rod 26 drive the cams 24 to rotate, the filter screen plate 21 is upwardly pushed through the rotation of the cam 24, the spring 22 shakes the filter screen plate 21, and impurities are filtered, the ethylene carbonate fluoride filtered through the pump body 4 and the conveying pipe 3 is conveyed, and is distilled and purified.

[0036] Working principle: the electromagnetic valve at the middle end is closed, the rotating rod 28 is driven to rotate by the first motor 8, the driving pulley 27 and the driving gear 29 are driven to rotate, the driven pulley 14 is driven to rotate by the driving pulley 27 and the belt 30, the rotating column 9 is driven to rotate, the second stirring rod 17 at the bottom is driven to rotate, the driven gear 15 is driven to rotate by the driving gear 29 and the driven gear 15, the first stirring rod 16 is driven to rotate by the driven gear 15, the fluoroethylene carbonate and anhydrous sodium sulfate are fused, the electromagnetic valve is opened, the rotating rod 26 is driven to rotate by the third motor 25, the front and rear cams 24 are driven to rotate by the rotating rod 26, the filter screen plate 21 is driven upward by the cam 24, the filter screen plate 21 is shaken by the spring 22, impurities are filtered, the filtered fluoroethylene carbonate is conveyed by the pump body 4 and the conveying pipe 3, is distilled and purified, the filtered and dried fluoroethylene carbonate is conveyed by the pump body 4, the liquid is conveyed into the distillation flask 6 by the pump body 4, and the distilled fluoroethylene carbonate enters the bearing bottle 5.

[0037] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fluorinated ethylene carbonate purification apparatus comprising a mixing tank (1), characterized in that: The bottom of the mixing box (1) is fixedly connected with a filter box (2), the bottom of the filter box (2) is fixedly connected with a pump body (4), the output end of the pump body (4) is fixedly connected with a conveying pipe (3), the water outlet end of the conveying pipe (3) is fixedly connected with a distillation bottle (6), the top rear end of the mixing box (1) is fixedly connected with a first motor (8), the output end of the first motor (8) is fixedly connected with a rotating rod (28), the bottom outer ring of the rotating rod (28) is fixedly connected with a driving gear (29), the outer wall of the driving gear (29) is engagedly connected with a driven gear (15), the top outer ring of the rotating rod (28) is fixedly connected with a driving belt pulley (27), the inside of the front end of the mixing box (1) is rotatably connected with a rotating column (9), and the rotating column (9) is rotatably connected with the inside of the driven gear (15), the top outer ring of the rotating column (9) is fixedly connected with a driven belt pulley (14), a belt (30) is arranged between the driving belt pulley (27) and the driven belt pulley (14), the bottom of the driven gear (15) is fixedly connected with uniformly distributed first stirring rods (16), the bottom of the rotating column (9) is fixedly connected with uniformly distributed second stirring rods (17), and the inside of the filter box (2) is provided with a filter assembly.

2. The fluorinated ethylene carbonate purification device according to claim 1, characterized by: The filter assembly comprises an electric sliding rail (10), and the electric sliding rail (10) is fixedly connected to the inner walls of the front and rear ends of the filter box (2).

3. The fluorinated ethylene carbonate purification device according to claim 2, characterized by: The inner walls of the front and rear ends of the right side of the filter box (2) are both provided with a sliding groove (11), the inner walls of the sliding grooves (11) are slidably connected with sliding blocks (12), and the sliding blocks (12) are fixedly connected with a waste chip box (13) between them.

4. The fluorinated ethylene carbonate purification device according to claim 1, characterized by: The top of the distillation bottle (6) is fixedly connected with a connecting pipe (7), one end of the connecting pipe (7) is fixedly connected with a bearing bottle (5).

5. The fluorinated ethylene carbonate purification device according to claim 2, characterized by: The rear end of the sliding block (18) is fixedly connected with a second motor (19), and the output end of the second motor (19) is fixedly connected with a groove box (20).

6. A fluorinated ethylene carbonate purification device according to claim 5, characterized in that: The inner walls of the front and rear ends of the groove box (20) are both fixedly connected with springs (22), and the top of the spring (22) is fixedly connected with a filter screen plate (21).

7. The fluorinated ethylene carbonate purification device according to claim 5, characterized by: The bottoms of the front and rear ends of the groove box (20) are both fixedly connected with support discs (23), and the inside of the front support disc (23) is penetrated and fixedly connected with a third motor (25).

8. The fluorinated ethylene carbonate purification device according to claim 7, characterized by: The output end of the third motor (25) is fixedly connected with a rotating rod (26), and the front and rear ends of the rotating rod (26) are both fixedly connected with cams (24).

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