Material stirring device for preparing liquid lithium bis (fluorosulfonyl) imide

Abstract

The utility model discloses a material stirring device for preparing liquid lithium bis (fluorosulfonyl) imide, which is characterized in that a base is connected with a stirring tank rotating rod through a bearing, a stirring tank connecting seat is arranged in the middle of the stirring tank rotating rod, and the stirring tank connecting seat is connected with a stirring tank; according to the material stirring device for preparing the liquid lithium bis (fluorosulfonyl) imide, the problems that in the prior art, in the actual using process, a stirring shaft is still driven by a motor, the aging rate of a sealing ring of the stirring shaft is high under the acid condition, frequent maintenance is needed, and the stirring shaft is prone to being damaged are solved. Under the condition of high use cost, by arranging the inner rotor, the rotating fan blades, the outer rotor, the driving motor and other structures, materials can be stirred in a magnetic stirring mode, holes formed in equipment are reduced, a sealing ring does not need to be arranged, the maintenance period is prolonged, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical equipment technical field especially relates to a material stirring device of liquid double fluorosulfonyl imide lithium preparation. BACKGROUND

[0002] The double fluorosulfonyl imide lithium salt can be used as a lithium ion battery electrolyte additive, applied to the electrolyte of the rechargeable lithium battery, can effectively reduce the high and low temperature resistance of the SEI layer formed on the surface of the electrode plate at low temperature, reduce the capacity loss of the lithium battery in the placing process, thereby providing high battery capacity and the electrochemical performance of the battery, and can also be used as an electrolyte for primary batteries; can be used as a polymerization catalyst; can also be used as an antistatic agent in the industrial field.

[0003] The double fluorosulfonyl imide lithium (LiFSI) has the advantages of high stability (not decomposed below 200 DEG C), excellent low-temperature performance, good hydrolysis stability and environmental friendliness, and can be used as the next generation of secondary lithium ion battery electrolyte lithium salt to replace lithium hexafluorophosphate.

[0004] At present, the Chinese patent number: CN202322059225.1 discloses a double fluorosulfonyl imide lithium preparation reaction device, including reaction tank and cover plate, the inside of reaction tank is provided with agitating mechanism, the agitating mechanism includes stirring unit and scraping unit, the stirring unit includes first drive motor, support column, stirring shaft and stirring rod, the support column is fixedly installed on the upper surface of cover plate, the first drive motor is fixedly installed on the upper surface of support column, the stirring shaft is fixedly installed on the output end of first drive motor, the stirring rod is fixedly installed on the outer surface of stirring shaft. The double fluorosulfonyl imide lithium preparation reaction device, by setting agitating mechanism, the scraping unit in agitating mechanism can drive connecting rod and scraper to rotate when stirring shaft drives stirring rod to stir material, the end side of scraper is in contact with the inner wall of reaction tank and effectively removes the material attached to the inner wall of reaction tank to prevent corrosion of reaction tank. However, the existing technology still has the problems of motor-driven stirring shaft, fast aging rate of sealing ring under acidic conditions, frequent maintenance and high use cost in actual use. UTILITY MODEL CONTENTS

[0005] Therefore, in view of the above problems, the utility model provides a material stirring device for preparing liquid double fluorosulfonyl imide lithium, which solves the technical problems of motor-driven stirring shaft, fast aging rate of sealing ring under acidic conditions, frequent maintenance and high use cost in actual use of the prior art.

[0006] To achieve the above object, the utility model discloses the following technical scheme: a kind of liquid bifluoride sulfonimide lithium preparation's material stirring device, its structure includes base, stirring tank rotary rod, stirring tank connecting seat, stirring tank rotating motor, stirring tank, the base is connected with stirring tank rotary rod by bearing, the middle part of stirring tank rotary rod is provided with stirring tank connecting seat, the stirring tank connecting seat is connected with stirring tank, stirring tank rotating motor that the base is provided is driven stirring tank rotary rod rotation, the stirring tank includes jar body, feed pipe, feed valve, output pump, output pipe, inner rotor, rotary fan blade, outer rotor, drive motor, the top of jar body is provided with multiple feed pipe, feed valve is provided on the feed pipe, output pump is provided on the right side of feed pipe, the output pump is connected with output pipe, the bottom of the inside of jar body is provided with inner rotor, the outside of inner rotor is provided with rotary fan blade, the bottom of the outside of jar body is provided with outer rotor, and the outer rotor is connected with drive motor.

[0007] Further, the top of the jar body is also provided with a pressure relief valve.

[0008] Further, the lower end of the output pipe is located at the bottom of the jar body, and the output pipe is vertically arranged or arranged in a curved structure attached to the inner wall of the jar body.

[0009] Further, the inner rotor is a rod-shaped magnet with a ceramic protective layer on its outer surface.

[0010] Further, the outer rotor is an electromagnet structure, and the outer rotor is connected to the power line through a brush.

[0011] Further, the inner rotor and the outer rotor are magnetically attracted.

[0012] By adopting the foregoing technical scheme, the liquid bifluoride sulfonimide lithium preparation material stirring device has the following advantages: the existing technology still has the problem of using a motor to drive the stirring shaft during actual use, the sealing ring ages quickly under acidic conditions and needs frequent maintenance, and the use cost is high. By setting the inner rotor, rotary fan blade, outer rotor and drive motor, the material can be stirred using magnetic stirring, the hole in the equipment is reduced, the sealing ring is not needed, the maintenance period is prolonged, and the use cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a structural schematic diagram of the utility model;

[0014] Fig. 2 is a structural schematic diagram of the inside of the utility model.

[0015] In the figure: 1, base; 2, stirring tank rotating rod; 3, stirring tank connecting seat; 4, stirring tank rotating motor; 5, stirring tank; 11, tank body; 12, feeding pipe; 13, feeding valve; 14, output pump; 15, output pipe; 16, inner rotor; 17, rotating fan blade; 18, outer rotor; 19, driving motor. DETAILED DESCRIPTION

[0016] The utility model is further explained in connection with the drawings and specific embodiments.

[0017] Reference Figs. 1-2 The embodiment provides a kind of liquid bifluorosulfonylimide lithium preparation material stirring device, its structure includes base 1, stirring tank rotating rod 2, stirring tank connecting seat 3, stirring tank rotating motor 4, stirring tank 5, the base 1 is connected with stirring tank rotating rod 2 by bearing, the middle part of the stirring tank rotating rod 2 is provided with stirring tank connecting seat 3, the stirring tank connecting seat 3 is connected with stirring tank 5, the base 1 is provided with the stirring tank rotating motor 4 of driving stirring tank rotating rod 2 rotation, the stirring tank 5 includes tank body 11, feeding pipe 12, feeding valve 13, output pump 14, output pipe 15, inner rotor 16, rotating fan blade 17, outer rotor 18, driving motor 19, the top of the tank body 11 is provided with multiple feeding pipe 12, the feeding pipe 12 is provided with feeding valve 13, the right side of the feeding pipe 12 is provided with output pump 14, the output pump 14 is connected with output pipe 15, the inside bottom of the tank body 11 is provided with inner rotor 16, the outside of the inner rotor 16 is provided with rotating fan blade 17, the bottom of the outside of the tank body 11 is provided with outer rotor 18, and the outer rotor 18 is connected with driving motor 19.

[0018] The top of the tank body 11 is also provided with pressure relief valve.

[0019] The lower end of the output pipe 15 is located at the bottom of the tank body 11, and the output pipe 15 is vertically arranged or arranged in a curved structure attached to the inner wall of the tank body 11.

[0020] The inner rotor 16 is a rod-shaped magnet with a ceramic protective layer on the outer surface.

[0021] The outer rotor 18 is an electromagnet structure, and the outer rotor 18 is connected with the power line through the brush.

[0022] The inner rotor 16 and the outer rotor 18 are magnetically attracted.

[0023] The material stirring device for preparing the liquid bifluorosulfonylimide lithium improves the prior art, and the stirring shaft is driven by a motor, the sealing ring ages fast under an acid condition, frequent maintenance is needed, and the use cost is high.

[0024] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0025] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A material stirring device for liquid lithium bisfluorosulfonylimide, characterized by: Its structure includes base, stirring tank rotation rod, stirring tank connecting seat, stirring tank rotation motor, stirring tank, the base is connected with stirring tank rotation rod through bearing, the middle part of stirring tank rotation rod is provided with stirring tank connecting seat, the stirring tank connecting seat is connected with stirring tank, the base is provided with stirring tank rotation motor that drives stirring tank rotation rod rotation; The stirring tank includes tank body, feed pipe, feed valve, output pump, output pipe, inner rotor, rotating fan blade, outer rotor, driving motor, the top of the tank body is provided with multiple feed pipes, the feed pipe is provided with feed valve, the right side of the feed pipe is provided with output pump, the output pump is connected with output pipe, the bottom of the inside of the tank body is provided with inner rotor, the outside of the inner rotor is provided with rotating fan blade, the bottom of the outside of the tank body is provided with outer rotor, and the outer rotor is connected with driving motor.

2. The material stirring device for preparing liquid lithium bisfluorosulfonylimide according to claim 1, characterized in that: The top of the tank body is also provided with pressure relief valve.

3. The material stirring device for preparing liquid lithium bisfluorosulfonylimide according to claim 1, characterized in that: The lower end of the output pipe is located at the bottom of the tank body, and the output pipe is vertically arranged or arranged in a curved structure attached to the inner wall of the tank body.

4. The material stirring device for preparing liquid lithium bisfluorosulfonylimide according to claim 1, characterized in that: The inner rotor is a rod-shaped magnet with a ceramic protective layer on the outer surface.

5. The material stirring device for preparing liquid lithium bisfluorosulfonylimide according to claim 1, characterized in that: The outer rotor is an electromagnet structure, and the outer rotor is connected with the power line through the brush.

6. The material stirring device for preparing liquid lithium bisfluorosulfonylimide according to claim 1, characterized in that: The inner rotor and the outer rotor are matched through magnetic attraction.

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