Modularized lithium battery coating NMP recovery device

Abstract

The utility model provides a modularized lithium battery coating NMP (N-Methyl Pyrrolidone) recovery device, which relates to the technical field of NMP recovery, and comprises a heating chamber and a condensing box, the top of the heating chamber is fixedly provided with a processing box, the top of the processing box is fixedly inserted with two feeding pipes, the inner surface wall of the processing box is provided with two strip-shaped grooves, and the two strip-shaped grooves are communicated with the condensing box. And strip-shaped blocks are movably inserted into the inner surface walls of the two strip-shaped grooves. According to the NMP mixed liquid treatment device, when NMP mixed liquid enters the treatment box along the two feeding pipes, large-particle impurities in the NMP mixed liquid are filtered out and left on the filter plate under the action of the filter plate, and the filter plate can be conveniently taken out to be replaced or cleaned under the action of the two strip-shaped grooves and the two strip-shaped blocks, so that the subsequent filtering effect is improved; and when the NMP mixed solution in the treatment box is heated by the two heaters, the driving motor drives the stirring rod and the plurality of stirring blades to stir in the NMP mixed solution, so that the NMP mixed solution is uniformly heated, and the NMP collection quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to NMP recovery technical field especially relates to modularization lithium battery coating NMP recovery device. BACKGROUND

[0002] In the manufacturing process of lithium battery, NMP is widely used as solvent when coating positive and negative electrode materials, can help to disperse active material evenly in slurry, has good dissolving capacity, is often used in industry and laboratory, its boiling point is about 202 DEG C, makes it still can keep liquid state under high temperature condition, is suitable for being used in the application needing high temperature processing, because NMP is a kind of organic solvent with potential harm to environment, and NMP raw material cost is higher, fast recovery can reduce its pollution to environment, also can effectively reduce production cost, improve raw material utilization efficiency.

[0003] In prior art, when the lithium battery coating NMP mixed solution needs to be recovered, it needs to be heated to the boiling point of NMP, evaporated and recovered, but other impurities exist in the NMP mixed solution, which reduces the quality of NMP collection when heating and evaporating, thereby reducing the use effect of the coating NMP recovery device. UTILITY MODEL CONTENTS

[0004] The utility model discloses a modularization lithium battery coating NMP recovery device to solve the problem that the quality of NMP collection is reduced due to other impurities existing in NMP mixed solution when the existing equipment is used.

[0005] In order to achieve the above-mentioned purpose, the utility model discloses a modularization lithium battery coating NMP recovery device, including heating chamber and condensing box, the top of heating chamber is fixedly installed with processing box, the top of processing box is fixedly inserted with two feed pipes, the inner surface wall of processing box is equipped with two strip grooves, the inner surface wall of two strip grooves all movably inserts strip block, the outer wall of two strip blocks between one side is fixedly installed with filter plate, the inner wall bottom of heating chamber is fixedly installed with two heaters, the outer wall one side of processing box is fixedly installed with drive motor, the outer wall one side of drive motor is fixedly installed with stirring rod, the outer surface wall of stirring rod is fixedly installed with a plurality of stirring blades.

[0006] Preferably, the top of the condensing box is fixedly installed with a box cover, and the inner wall bottom of the condensing box is fixedly installed with two collection tanks.

[0007] Preferably, the top of each of the two collection tanks is fixedly inserted with a steam pipe, and the input ends of the two steam pipes are in communication with the interior of the processing box.

[0008] Preferably, the outer wall of the two steam pipes is fixedly installed with a first control valve.

[0009] Preferably, the inner wall of the processing box is fixedly installed with a temperature sensor, and the outer wall of the condensing box is fixedly inserted with two water changing pipes.

[0010] Preferably, the outer wall of the two water changing pipes is fixedly installed with a second control valve.

[0011] Preferably, the front of the processing box is fixedly installed with a controller, and the outer wall of the controller is electrically connected with the outer walls of the two heaters, the two first control valves, the two second control valves and the driving motor.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that,

[0013] In the utility model, when NMP mixed solution enters the processing box along two feeding pipes, first, the large particle impurities in the NMP mixed solution are filtered out and left on the filter plate through the action of the filter plate, and the filter plate is convenient to take out and replace or clean through the action of the two strip grooves and the two strip blocks, thereby improving the subsequent filtering effect; then, when the two heaters heat the NMP mixed solution in the processing box, the stirring rod and the plurality of stirring blades are driven by the driving motor to stir in the NMP mixed solution, so that the NMP mixed solution is uniformly heated, thereby improving the quality of NMP collection.

[0014] In the utility model, when the temperature in the processing box is lower than the boiling point of NMP, one of the first control valves is opened, so that the evaporated gas enters one of the collection tanks along one of the steam pipes; when the temperature sensor detects that the temperature in the processing box is at the boiling point of NMP, the other first control valve is opened, so that the NMP steam enters the other collection tank along the other steam pipe, thereby completing the collection of NMP without other impurities, and improving the collection quality. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A perspective view of a modular NMP recovery device for coating lithium batteries is provided for the utility model;

[0016] Figure 2 A front view of a modular NMP recovery device for coating lithium batteries is provided for the utility model;

[0017] Figure 3 A partial exploded view of a modular NMP recovery device for coating lithium batteries is provided for the utility model;

[0018] Figure 4 An expanded schematic view of a modular NMP recovery device for coating lithium batteries is provided for the utility model.

[0019] Legend:

[0020] 1. Heating chamber; 2. Condensation chamber; 3. Processing chamber; 4. Feed pipe; 5. Strip trough; 6. Strip block; 7. Filter plate; 8. Heater; 9. Drive motor; 10. Stirring rod; 11. Stirring blade; 12. Box cover; 13. Collection tank; 14. Steam pipe; 15. First control valve; 16. Temperature sensor; 17. Water exchange pipe; 18. Second control valve; 19. Controller. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figures 1-4 As shown, this utility model provides a modular lithium battery coating NMP recycling device, including a heating chamber 1 and a condensation box 2. A processing box 3 is fixedly installed on the top of the heating chamber 1. Two feed pipes 4 are fixedly inserted into the top of the processing box 3. Two strip grooves 5 are opened on the inner surface of the processing box 3. Strip blocks 6 are movably inserted into the inner surface of the two strip grooves 5. A filter plate 7 is fixedly installed between the outer walls of the two strip blocks 6. Two heaters 8 are fixedly installed on the bottom of the inner wall of the heating chamber 1. A drive motor 9 is fixedly installed on one side of the outer wall of the processing box 3. A stirring rod 10 is fixedly installed on one side of the outer wall of the drive motor 9. Multiple stirring blades 11 are fixedly installed on the outer wall of the stirring rod 10.

[0024] The effect achieved by the whole embodiment 1 is that when the mixed solution with NMP enters the treatment box 3 along the two feeding pipes 4, the mixed solution with NMP passes through the filter plate 7 in the treatment box 3 and filters out the large-particle impurities in the mixed solution with NMP and leaves on the filter plate 7, since the strip-shaped blocks 6 installed on both sides of the filter plate 7 are movably inserted in the two strip-shaped grooves 5 and can be pulled out only by external force, so as to facilitate the replacement or cleaning of the filter plate 7 by the staff, thereby improving the subsequent filtering effect and the quality of NMP recovery, and then when the filtered mixed solution with NMP is in the treatment box 3, the two heaters 8 are started by the controller 19, and the driving motor 9 is started by the controller 19, so as to heat and stir the mixed solution with NMP by the driving motor 9, the stirring rod 10 and the plurality of stirring blades 11, so as to ensure the uniform heating of the mixed solution with NMP and improve the quality of NMP recovery, thereby improving the use effect of the coating NMP recovery device.

[0025] Embodiment 2: as shown in Figures 2-4 The top of the condensation box 2 is fixedly installed with a box cover 12, the inner wall bottom of the condensation box 2 is fixedly installed with two collection tanks 13, the top of each of the two collection tanks 13 is fixedly inserted with a steam pipe 14, the input end of each of the two steam pipes 14 is in communication with the inside of the treatment box 3, the outer surface wall of each of the two steam pipes 14 is fixedly installed with a first control valve 15, the inner wall side of the treatment box 3 is fixedly installed with a temperature sensor 16, the outer wall side of the condensation box 2 is fixedly inserted with two water changing pipes 17, the outer surface wall of each of the two water changing pipes 17 is fixedly installed with a second control valve 18, the front of the treatment box 3 is fixedly installed with a controller 19, and the outer wall side of the controller 19 is electrically connected with the outer surface wall of the two heaters 8, the two first control valves 15, the two second control valves 18 and the driving motor 9.

[0026] The effect achieved by the whole embodiment 2 is that since the temperature sensor 16 is installed on the inner wall side of the treatment box 3, when the temperature sensor 16 detects that the temperature in the treatment box 3 is lower than the boiling point of NMP, the first control valve 15 on one of the steam pipes 14 is opened by the controller 19, so that the evaporated gas enters one of the collection tanks 13 along the steam pipe 14, when the temperature sensor 16 detects that the temperature in the treatment box 3 is at the boiling point of NMP, the first control valve 15 on one of the steam pipes 14 is closed, and the first control valve 15 installed on the other steam pipe 14 is opened, so that the NMP vapor enters the other collection tank 13 along the steam pipe 14, so as to complete the collection of NMP without other impurities, and then the water in the condensation box 2 can be replaced regularly by the two water changing pipes 17 and the two second control valves 18, so as to ensure the condensation effect and improve the collection quality of NMP.

[0027] Working principle: first, when NMP mixed solution along two feed pipe 4 into the processing box 3, under the action of filter plate 7, the solid impurities in NMP mixed solution left on the filter plate 7, and filter plate 7 through two strip slot 5 and two strip block 6, facilitate the filter plate 7 is extracted or cleaning, improve the subsequent filtration effect, then through the controller 19 start two heaters 8, make it to NMP mixed solution in processing box 3 heating, at the same time again through the controller 19 start drive motor 9, make it to stirring rod 10 and multiple stirring blade 11 NMP mixed solution stirring, so that NMP mixed solution heated evenly, then under the action of temperature sensor 16, when the temperature in processing box 3 is lower than NMP boiling point, through the controller 19 open one of the first control valve 15, make the gas along one of the steam pipe 14 into one of the collection tank 13, when temperature sensor 16 monitoring the temperature in processing box 3 is located at NMP boiling point, then through the controller 19 close one of the first control valve 15, then open another first control valve 15, make NMP steam along another steam pipe 14 into another collection tank 13, and two collection tank 13 are located in condensing box 2, and condensing box 2 in the action of two water pipe 17 and two second control valve 18, can regularly change the cold water in condensing box 2, to ensure the condensing effect, so as to complete the collection of NMP, in general, improve the quality of NMP collection, so as to improve the use effect of the modular lithium battery coating NMP recycling device.

[0028] The above, only the preferred embodiment of the present application, not to the present application for other forms of restrictions, any skilled in the art of technical personnel may be disclosed by the above technical content to change or modification as equivalent variation of equivalent embodiments applied in other fields, but any simple modification, equivalent change and modification of the above embodiments, which does not deviate from the technical scheme of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical scheme of the present application.

Claims

1. Modular lithium battery coating NMP recovery device, comprising a heating chamber (1) and a condensing box (2), characterized in that: The top of the heating chamber (1) is fixedly installed with a treatment box (3), the top of the treatment box (3) is fixedly inserted with two feeding pipes (4), the inner surface wall of the treatment box (3) is provided with two strip grooves (5), the inner surface walls of the two strip grooves (5) are movably inserted with strip blocks (6), the outer walls of the two strip blocks (6) are fixedly installed with filter plates (7) on one side, the inner wall bottom of the heating chamber (1) is fixedly installed with two heaters (8), the outer wall of the treatment box (3) is fixedly installed with a driving motor (9) on one side, the outer wall of the driving motor (9) is fixedly installed with a stirring rod (10) on one side, and the outer surface wall of the stirring rod (10) is fixedly installed with a plurality of stirring blades (11).

2. The modular lithium battery coating NMP recovery apparatus of claim 1, wherein: The top of the condensing box (2) is fixedly installed with a box cover (12), and the inner wall bottom of the condensing box (2) is fixedly installed with two collecting tanks (13).

3. The modular lithium battery coating NMP recovery apparatus of claim 2, wherein: The top of each of the two collecting tanks (13) is fixedly inserted with a steam pipe (14), and the input ends of the two steam pipes (14) are in communication with the inside of the treatment box (3).

4. The modular lithium battery coating NMP recovery apparatus of claim 3, wherein: The outer surface walls of the two steam pipes (14) are fixedly installed with first control valves (15).

5. The modular lithium battery coating NMP recovery apparatus of claim 4, wherein: The inner wall of the treatment box (3) is fixedly installed with a temperature sensor (16) on one side, and the outer wall of the condensing box (2) is fixedly inserted with two water changing pipes (17) on one side.

6. The modular lithium battery coating NMP recovery apparatus of claim 5, wherein: The outer surface walls of the two water changing pipes (17) are fixedly installed with second control valves (18).

7. The modular lithium battery coating NMP recovery apparatus of claim 6, wherein: The front of the treatment box (3) is fixedly installed with a controller (19), and the outer wall of the controller (19) is electrically connected with the outer surface walls of the two heaters (8), the two first control valves (15), the two second control valves (18) and the driving motor (9) on one side.

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