Packaging barrel cleaning device, recycling system and battery production system

Abstract

The utility model relates to a packaging barrel cleaning device, a recycling system and a battery production system, and the packaging barrel cleaning device comprises a plurality of to-be-cleaned packaging barrels which are sequentially connected in series in the preset direction to form a cleaning channel for a cleaning medium to circulate; the cleaning container is connected with the first packaging barrel in the preset direction and is arranged to supply a cleaning medium to the first packaging barrel; and the first recycling container is connected with the last packaging barrel in the preset direction and is used for collecting the mixed liquid discharged from the last packaging barrel. According to the packaging barrel cleaning device, the cleaning work of the packaging barrel can be efficiently completed, the cleaning efficiency and the cleaning quality of the packaging barrel are improved, the requirements of industrial production are met, in addition, the personal danger caused by residual electrolyte to operators can be reduced, and the safety of the cleaning work of the packaging barrel is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrolyte production, and in particular to a packaging barrel cleaning device, a recycling system and a battery production system. Background Art

[0002] In the production process of lithium battery electrolyte, the packaging barrels of the electrolyte usually need to be reused. The packaging barrels need to be cleaned before use so that the cleanliness of the packaging barrels meets the requirements.

[0003] In the related art, packaging barrels are generally cleaned by manual cleaning. However, since there is usually electrolyte residue in the packaging barrel, the residual electrolyte in the packaging barrel may cause personal danger to the operator when the packaging barrel is cleaned manually. Moreover, the manual cleaning method of the packaging barrel has low cleaning efficiency and poor cleaning quality, which is difficult to meet the needs of industrial production. It will also cause the cleaning solvent to be scrapped and wasted, and increase the cleaning cost. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a packaging barrel cleaning device, a recycling system and a battery production system, which can improve the cleaning efficiency and cleaning quality of the packaging barrel and meet production needs.

[0005] In a first aspect, the present application provides a packaging barrel cleaning device, comprising:

[0006] A plurality of packaging barrels to be cleaned are sequentially connected in series along a preset direction to form a cleaning channel for the circulation of cleaning media;

[0007] A cleaning container connected to the first packaging barrel in the preset direction and configured to supply a cleaning medium to the first packaging barrel;

[0008] The first recovery container is connected to the last packaging barrel in the preset direction and is used to collect the mixed liquid discharged from the last packaging barrel.

[0009] The packaging barrel cleaning device according to the first aspect of the present application has at least the following beneficial effects:

[0010] The packaging barrel cleaning device of the present application connects a cleaning container for supplying cleaning medium, multiple packaging barrels to be cleaned, and a first recovery container for recovering a mixed liquid in series in sequence. The cleaning medium can circulate along the cleaning channel formed by the multiple packaging barrels to be cleaned, and rinse off the electrolyte and impurity particles remaining on the inner wall of the packaging barrel one by one. The residual electrolyte and impurity particles washed out are carried by the cleaning medium and flow into the first recovery container, so that the first recovery container recovers the mixed liquid composed of the residual electrolyte, impurity particles and the cleaning medium. Compared with the existing method of manually cleaning the packaging barrels one by one, the cleaning work of the packaging barrels can be completed efficiently, the cleaning efficiency and cleaning quality of the packaging barrels can be improved, the needs of industrial production can be met, and the personal danger brought to the operator by the residual electrolyte can be reduced, thereby improving the safety of cleaning the packaging barrels.

[0011] In some embodiments, the last packaging barrel is connected to the first recycling container via a first pipe, the first packaging barrel is connected to the first pipe via a second pipe, a first valve is provided at the connecting end of the first pipe and the first recycling container, and a second valve is provided on the second pipe.

[0012] Such an arrangement enables the cleaning medium outputted from the cleaning container to repeatedly circulate along the plurality of packaging barrels connected in series, thereby cleaning all the packaging barrels more thoroughly and improving the cleaning quality of all the packaging barrels.

[0013] In some embodiments, a first filter is disposed on the first pipe, the first filter is located upstream of the connection end of the second pipe and the first pipe, and the first filter is used to filter particulate matter in the mixed liquid.

[0014] Such an arrangement can remove impurity particles such as metal particles, non-metal particles, magnetic particles, etc. in the mixed liquid, further improving the cleaning quality of all packaging barrels.

[0015] In some embodiments, a circulation pump is provided between the last packaging barrel and the first recycling container.

[0016] With such arrangement, the circulation pump can increase the flow pressure and flow rate of the cleaning medium flowing along the cleaning channel, so that the cleaning medium can efficiently rinse and clean the inner walls of all packaging barrels, further improving the cleaning efficiency and cleaning quality of the packaging barrels.

[0017] In some embodiments, two adjacent packaging barrels are connected by a third pipe, and a third valve is provided on the third pipe.

[0018] With such arrangement, when the operator needs to add a packaging barrel to be cleaned in the preset direction, he can first close all the third valves, suspend the cleaning work in real time, and then arrange the packaging barrel to be cleaned at the corresponding position in the preset direction, and then connect all the packaging barrels to be cleaned in series. In this way, the need for simultaneous cleaning of multiple packaging barrels on site can be met.

[0019] In a second aspect, the present application provides a recycling system, which includes the packaging barrel cleaning device described above.

[0020] The recycling system according to the second aspect of the present application has at least the following beneficial effects:

[0021] The recycling system of the present application, since it is equipped with the above-mentioned packaging barrel cleaning device, also has the same technical effects brought by the packaging barrel cleaning device, that is, it can efficiently complete the cleaning work of the packaging barrel, improve the cleaning efficiency and cleaning quality of the packaging barrel, meet the needs of industrial production, and can reduce the personal danger brought by residual electrolyte to operators, thereby improving the safety of cleaning work on the packaging barrel.

[0022] In some embodiments, the recovery system further comprises:

[0023] a separation device, connected to the first recovery container, for receiving the mixed liquid in the first recovery container and separating the cleaning medium from the mixed liquid;

[0024] The second recovery container is connected to the separation device and is used to collect the cleaning medium separated by the separation device.

[0025] With such an arrangement, the separation device performs secondary processing on the received mixed liquid to separate the cleaning medium, and the second recovery container recovers the separated cleaning medium for recycling, thereby improving the utilization rate of the cleaning medium and reducing the cost of cleaning the packaging barrel to better meet the needs of industrial production.

[0026] In some embodiments, the separation device includes a distillation tower, a condenser, and a reflux device connected in sequence, the first recovery container is connected to the first inlet of the distillation tower through a fourth pipeline, and the reflux device is connected to the second recovery container through a fifth pipeline.

[0027] With such a configuration, the cleaning medium in the mixed liquid can be separated by distillation without destroying the chemical properties of the cleaning medium. In addition, the separation purity of the cleaning medium can be improved, so that the recovered cleaning medium can be effectively reused, thereby improving the utilization rate of the cleaning medium and reducing the cost of cleaning the packaging barrel, so as to better meet the needs of industrial production.

[0028] In some embodiments, a fourth valve and a fifth valve are respectively disposed on the fourth pipeline and the fifth pipeline.

[0029] With such an arrangement, the opening and closing of the fourth pipeline and the fifth pipeline can be controlled in real time according to the actual on-site demand for separation of the cleaning medium, thereby improving the separation efficiency of the cleaning medium in the mixed liquid.

[0030] In some embodiments, the reflux device is further connected to the second inlet of the distillation tower via a sixth pipeline, and a sixth valve is disposed on the sixth pipeline.

[0031] Such an arrangement enables the cleaning medium recovered by the reflux device to enter the distillation tower multiple times for multiple distillation and purification, thereby improving the separation purity of the cleaning medium until the cleaning medium in the reflux device meets the use requirements.

[0032] In some embodiments, a second filter is provided between the separation device and the second recovery container, and the second filter is used to filter particulate matter in the cleaning medium.

[0033] Such an arrangement can further remove particulate impurities in the cleaning medium, further improve the purity of the cleaning medium, and make the purity of the cleaning medium recovered by the second recovery container meet the requirements of secondary use.

[0034] In some embodiments, the recycling system further comprises a third recycling container, wherein the third recycling container is connected to the separation device to collect the waste liquid separated by the separation device.

[0035] With such arrangement, the third recovery container collects the waste liquid separated by the separation device, and the waste liquid collected by the third recovery container can be processed by professional waste liquid treatment equipment, thereby reducing pollution to the environment.

[0036] In a third aspect, the present application provides a battery production system, which includes the recycling system described above.

[0037] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0039] Figure 1 This is a schematic diagram of the structure of the packaging barrel cleaning device according to an embodiment of the present application.

[0040] Figure 2 This is a schematic diagram of the structure of the recycling system of an embodiment of the present application.

[0041] Figure 3 This is a partial structural schematic diagram of the recycling system of an embodiment of the present application.

[0042] Explanation of the figure marks: packaging barrel 100; cleaning container 200; first recovery container 300; first filter 400; first sub-filter 410; second sub-filter 420; circulation pump 500; separation device 600; distillation tower 610; condenser 620; reflux 630; second recovery container 700; second filter 800; third sub-filter 810; fourth sub-filter 820; third recovery container 900; first pipeline 10; first valve 11; second pipeline 20; second valve 21; third pipeline 30; third valve 31; fourth pipeline 40; fourth valve 41; fifth pipeline 50; fifth valve 51; sixth pipeline 60; sixth valve 61; preset direction X. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0044] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0045] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0047] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0049] In the production process of lithium battery electrolyte, the packaging barrels of the electrolyte usually need to be reused. The packaging barrels need to be cleaned before use so that the cleanliness of the packaging barrels meets the requirements.

[0050] In the related art, packaging barrels are generally cleaned by the following two manual cleaning methods. The first cleaning method is: remove the flange on the packaging barrel - clean the packaging barrel with pure water - dry the packaging barrel - install the flange - clean the packaging barrel with solvent. The second cleaning method is: do not remove the flange on the packaging barrel, and directly clean the packaging barrel manually with solvent.

[0051] However, since there is usually residual electrolyte in the packaging barrel, the residual electrolyte in the packaging barrel may cause personal danger to the operator during manual cleaning. Moreover, the manual cleaning method of the packaging barrel has low cleaning efficiency and poor cleaning quality, which is difficult to meet the needs of industrial production. It will also cause the cleaning solvent to be scrapped and wasted, increasing the cleaning cost.

[0052] Based on the above considerations, in view of the current problems of low cleaning efficiency and quality of manual cleaning of electrolyte packaging barrels, see Figure 1 The present application provides a packaging barrel cleaning device, which includes a plurality of packaging barrels 100 to be cleaned, a cleaning container 200 and a first recovery container 300 .

[0053] Among them, a plurality of packaging barrels 100 to be cleaned are sequentially connected in series along a preset direction X to form a cleaning channel for the circulation of cleaning medium. The cleaning container 200 is connected to the first packaging barrel 100 in the preset direction X, and the cleaning container 200 is configured to supply the cleaning medium to the first packaging barrel 100. The first recovery container 300 is connected to the last packaging barrel 100 in the preset direction X, and is used to collect the mixed liquid discharged from the last packaging barrel 100.

[0054] It should be noted that in the present application, the packaging barrel 100 to be cleaned may be, but is not limited to, a square barrel, a cylindrical barrel, an elliptical barrel, etc., and its shape, specification, and material are not limited. The packaging barrel 100 to be cleaned contains a small amount of residual electrolyte and impurity particles, which need to be cleaned for secondary use.

[0055] Like conventional electrolyte packaging barrels, in the present application, the packaging barrel 100 to be cleaned has an interface for an external connector, such as interfaces on the top and bottom of the packaging barrel 100, and the connecting pipe can be installed and connected to the corresponding interface of the packaging barrel 100 through a quick connector, so as to facilitate quick disassembly and assembly of the packaging barrel 100.

[0056] When multiple packaging barrels 100 to be cleaned are connected in series along a preset direction X, the top interface of the first packaging barrel 100 is connected to the cleaning container 200 through a pipeline, the bottom interface of the first packaging barrel 100 is connected to the top interface of the second packaging barrel 100 through a pipeline, and the bottom interface of the second packaging barrel 100 is connected to the top interface of the third packaging barrel 100 through a pipeline. In this way, multiple packaging barrels 100 to be cleaned are connected in series along the preset direction X, thereby providing a cleaning channel for the circulation of cleaning media. It can be understood that the preset direction X can be adaptively adjusted according to the position layout of multiple packaging barrels 100 to be cleaned at the actual site.

[0057] It should also be noted that in the present application, the cleaning container 200 stores a cleaning medium for cleaning the packaging barrel 100, and the cleaning medium can be a cleaning liquid such as pure water, electrolyte solvent, etc. The shape, specification, and material of the cleaning container 200 are not limited. Similarly, the shape, specification, and material of the first recovery container 300 are also not limited.

[0058] A booster pump may be provided on the cleaning container 200, and the cleaning medium in the cleaning container 200 is transported to the first packaging barrel 100 through the booster pump, and flows through a plurality of packaging barrels 100 to be cleaned that are connected in series in sequence. When the cleaning medium flows in the packaging barrel 100, the inner wall of the packaging barrel 100 is simultaneously flushed, and the residual electrolyte and impurity particles on the inner wall of the packaging barrel 100 are cleaned. In this way, during the cleaning medium's circulation along the cleaning channel formed by the plurality of packaging barrels 100 to be cleaned, the residual electrolyte and impurity particles in each packaging barrel 100 can be cleaned and removed, and the residual electrolyte and impurity particles are carried into the first recovery container 300, so that the first recovery container 300 can recover the mixed liquid consisting of the residual electrolyte, impurity particles and cleaning medium.

[0059] In addition, a nozzle may be provided on the packaging barrel 100 to be cleaned. The nozzle may be a spray ball and may be provided at the top or bottom of the packaging barrel 100. After the cleaning medium enters the packaging barrel 100 to be cleaned through a pipeline, it is sprayed out through the nozzle, thereby flushing the inner wall of the packaging barrel 100, thereby flushing and removing the electrolyte and impurity particles on the inner wall of the packaging barrel 100, and more efficiently achieving the cleaning of the packaging barrel 100.

[0060] It is not difficult to understand that the packaging barrel cleaning device of the present application connects in series a cleaning container 200 for supplying cleaning medium, multiple packaging barrels 100 to be cleaned, and a first recovery container 300 for recovering the mixed liquid in sequence. The cleaning medium can circulate along the cleaning channel formed by the multiple packaging barrels 100 to be cleaned, and rinse off the electrolyte and impurity particles remaining on the inner wall of the packaging barrel 100 one by one. The residual electrolyte and impurity particles washed out are carried by the cleaning medium and flow into the first recovery container 300, so that the first recovery container 300 recovers the mixed liquid composed of the residual electrolyte, impurity particles and cleaning medium. Compared with the existing method of manually cleaning the packaging barrels 100 one by one, it can efficiently complete the cleaning work of the packaging barrel 100, improve the cleaning efficiency and cleaning quality of the packaging barrel 100, meet the needs of industrial production, and reduce the personal danger of residual electrolyte to the operator, thereby improving the safety of cleaning the packaging barrel 100.

[0061] In some embodiments of the present application, see Figure 1 The last packaging barrel 100 is connected to the first recycling container 300 through the first pipe 10, the first packaging barrel 100 is connected to the first pipe 10 through the second pipe 20, the connecting end of the first pipe 10 and the first recycling container 300 is provided with a first valve 11, and the second pipe 20 is provided with a second valve 21.

[0062] Specifically, the first valve 11 and the second valve 21 can be configured as manual switch valves, which is convenient for operators to manually switch the first valve 11 and the second valve 21 on site. The first valve 11 is located downstream of the connection end of the first pipeline 10 and the second pipeline 20. Of course, the first valve 11 and the second valve 21 can also be configured as electronic valves, which are not specifically limited.

[0063] It should be noted that before the cleaning container 200 delivers the cleaning medium to the first packaging barrel 100, the first valve 11 is closed first, and at the same time, the second valve 21 is opened, so that the pipeline for the mixed liquid flowing out of the last packaging barrel 100 to flow into the first recovery container 300 is closed, and the pipeline for the mixed liquid flowing out of the last packaging barrel 100 to flow back to the first packaging barrel 100 is open.

[0064] In this way, after the cleaning container 200 delivers the cleaning medium to the first packaging barrel 100, the cleaning medium cleans the multiple packaging barrels 100 connected in series, and the mixed liquid flowing out of the last packaging barrel 100 flows back to the first packaging barrel 100 through the first pipe 10 and the second pipe 20. In this way, the mixed liquid circulates repeatedly for a certain period of time, thereby more thoroughly cleaning all the packaging barrels 100 and improving the cleaning quality of all the packaging barrels 100.

[0065] When the mixed liquid circulates repeatedly for a preset time, the first valve 11 can be opened, and at the same time, the second valve 21 is closed, so that the mixed liquid flowing out of the last packaging barrel 100 flows into the first recovery container 300, and the mixed liquid flowing out of the last packaging barrel 100 flows back to the first packaging barrel 100. The pipeline is closed. At this time, the mixed liquid flowing out of the last packaging barrel 100 finally flows into the first recovery container 300, thereby completing the recovery of the mixed liquid.

[0066] It is not difficult to understand that, through the above arrangement, the present application can enable the cleaning medium output from the cleaning container 200 to repeatedly circulate along the multiple packaging barrels 100 connected in series, so as to more thoroughly clean all the packaging barrels 100 and improve the cleaning quality of all the packaging barrels 100.

[0067] In addition, in other embodiments, after all packaging barrels 100 are cleaned, the operator can take the last packaging barrel 100 for cleanliness inspection, and the inspection method is as follows: take a small amount of electrolyte and put it into the packaging barrel 100, and then take samples to detect the liquid components in the packaging barrel 100. When the water concentration in the liquid component is less than or equal to 30ppm, and the hydrofluoric acid concentration is less than or equal to 15ppm, and the chromaticity is less than or equal to 10hazen, it means that the cleanliness of the packaging barrel 100 meets the use requirements; when the water concentration, hydrofluoric acid concentration and chromaticity in the liquid component do not meet the above numerical ranges, it means that the cleanliness of the packaging barrel 100 does not meet the use requirements and needs to be cleaned again.

[0068] In some embodiments of the present application, see Figure 1 A first filter 400 is disposed on the first pipe 10. The first filter 400 is located upstream of the connection end between the second pipe 20 and the first pipe 10. The first filter 400 is used to filter particulate matter in the mixed liquid.

[0069] Specifically, the first filter 400 includes a first sub-filter 410 and a second sub-filter 420 that are interconnected. The first sub-filter is configured as a Y-type filter for filtering and removing large particles of metal and non-metallic impurities in the mixed liquid, and the second sub-filter 420 is a demagnetization filter for filtering and removing magnetic particles in the mixed liquid. The first sub-filter 410 is located upstream of the second sub-filter 420, and the second sub-filter 420 is located upstream of the connection end of the second pipe 20 and the first pipe 10.

[0070] It can be understood that the mixed liquid flowing out of the last packaging barrel 100 can first flow into the first filter 400 for filtration to remove impurity particles such as metal particles, non-metallic particles, magnetic particles, etc. in the mixed liquid. The mixed liquid filtered by the first filter 400 then flows back to the first packaging barrel 100 through the second pipe 20 for the next circulation flow cleaning. In this way, the cleaning quality of all packaging barrels 100 is further improved.

[0071] In addition, before the mixed liquid flowing out of the last packaging barrel 100 flows into the first recovery container 300 through the first pipe 10, it can also be filtered by the first filter 400 to remove foreign particles in the mixed liquid.

[0072] In some embodiments of the present application, see Figure 1 A circulation pump 500 is provided between the last packaging barrel 100 and the first recovery container 300 .

[0073] Specifically, the circulation pump 500 is a booster pump, the liquid inlet of the circulation pump 500 is connected to the last packaging barrel 100 through a pipeline, and the liquid outlet of the circulation pump 500 is connected to the first recovery container 300 through a pipeline.

[0074] The present application sets a circulation pump 500 between the last packaging barrel 100 and the first recovery container 300. The circulation pump 500 can increase the flow pressure and flow rate of the cleaning medium flowing along the cleaning channel, so that the cleaning medium can efficiently rinse and clean the inner walls of all the packaging barrels 100, further improving the cleaning efficiency and cleaning quality of the packaging barrels 100.

[0075] In some embodiments of the present application, see Figure 1 Two adjacent packaging barrels 100 are connected by a third pipe 30 , and a third valve 31 is provided on the third pipe 30 .

[0076] Specifically, both ends of the third pipe 30 are connected to the interfaces of the corresponding packaging barrel 100 through quick connectors to facilitate the disassembly and assembly of the third pipe 30. The third valve 31 is a manual switch valve, which is convenient for operators to manually switch the third valve 31 on site.

[0077] It is not difficult to understand that, by setting a third valve 31 on the third pipe 30 between two adjacent packaging barrels 100, when the operator needs to add a packaging barrel 100 to be cleaned in the preset direction X, all the third valves 31 can be closed first, the cleaning work can be suspended in real time, and then the packaging barrel 100 to be cleaned can be arranged at the corresponding position in the preset direction X, and then all the packaging barrels 100 to be cleaned can be connected in series, so as to meet the needs of simultaneous cleaning of multiple packaging barrels 100 on site.

[0078] In some embodiments of the present application, the cleaning medium is configured as an electrolyte solvent.

[0079] It is easy to understand that in the present application, the packaging barrel 100 is used to store electrolyte, and the electrolyte contains lithium salt, carbonate solvent and additives.

[0080] Correspondingly, the cleaning medium supplied in the cleaning container 200 is a high-purity solvent of the same type as the electrolyte solvent. In this way, when the cleaning medium flows into the packaging barrel 100 to clean the packaging barrel 100, the introduction of other impurities can be reduced. Moreover, the cleaning medium can be better miscible with the residual electrolyte in the packaging barrel 100, thereby more efficiently cleaning the packaging barrel 100, further improving the cleaning efficiency and cleaning quality of the packaging barrel 100.

[0081] In addition, in some embodiments of the present application, each packaging barrel 100 to be cleaned is also connected to an exhaust gas recovery pipeline (not shown in the figure). The exhaust gas recovery pipeline can be connected to the corresponding interface on the packaging barrel 100 through a quick connector.

[0082] It should be noted that the packaging barrel 100 to be cleaned generally contains residual electrolyte, and the packaging barrel 100 to be cleaned is a positive pressure environment. Based on this, an exhaust gas recovery pipeline is also connected to the packaging barrel 100. Before the cleaning medium is input to clean the packaging barrel 100, the exhaust gas recovery pipeline can be opened, so that the packaging barrel 100 can discharge part of the residual electrolyte under the action of its own internal pressure. In this way, the packaging barrel 100 is pre-cleaned, thereby improving the cleaning efficiency and cleaning quality of the subsequent cleaning of the packaging barrel 100.

[0083] Also, see Figure 2 and Figure 3 The present application also provides a recycling system, which includes the above-mentioned packaging barrel cleaning device.

[0084] The recycling system can recycle the mixed liquid cleaned from multiple packaging barrels 100 so that the recycled mixed liquid can be subsequently processed for secondary treatment to separate the cleaning medium for recycling, thereby improving the utilization rate of the cleaning medium and reducing the cost of cleaning the packaging barrels 100 to better meet the needs of industrial production.

[0085] It is not difficult to understand that the recycling system of the present application, since it is equipped with the above-mentioned packaging barrel cleaning device, also has the same technical effect brought by the packaging barrel cleaning device, that is, it can efficiently complete the cleaning work of the packaging barrel 100, improve the cleaning efficiency and cleaning quality of the packaging barrel 100, meet the needs of industrial production, and can reduce the personal danger of residual electrolyte to operators, thereby improving the safety of cleaning the packaging barrel 100.

[0086] In some embodiments of the present application, see Figure 2 and Figure 3 The recovery system further includes a separation device 600 and a second recovery container 700. The separation device 600 is connected to the first recovery container 300 and is used to receive the mixed liquid in the first recovery container 300 and separate the cleaning medium from the mixed liquid. The second recovery container 700 is connected to the separation device 600 and is used to collect the cleaning medium separated by the separation device 600.

[0087] In this configuration, the separation device 600 performs secondary processing on the received mixed liquid to separate the cleaning medium, and the second recovery container 700 recovers the separated cleaning medium for recycling, thereby improving the utilization rate of the cleaning medium and reducing the cost of cleaning the packaging barrel 100 to better meet the needs of industrial production.

[0088] Further, see Figure 2 and Figure 3 The separation device 600 includes a distillation tower 610, a condenser 620 and a reflux device 630 connected in sequence. The first recovery container 300 is connected to the first inlet (not shown in the figure) of the distillation tower 610 through a fourth pipeline 40, and the reflux device 630 is connected to the second recovery container 700 through a fifth pipeline 50.

[0089] It can be understood that the first recovery container 300, the distillation tower 610, the condenser 620, the reflux device 630 and the second recovery container 700 are sequentially connected through corresponding pipelines.

[0090] After the mixed liquid in the first recovery container 300 flows into the distillation tower 610, the distillation tower 610 is gradually pressurized and heated by utilizing the different boiling points between the cleaning medium component and other components in the mixed liquid. The cleaning medium component in the mixed liquid is gradually concentrated in the tower, and the concentrated cleaning medium becomes gaseous and enters the condenser 620. The condenser 620 condenses the gaseous cleaning medium into liquid cleaning medium, and the liquid cleaning medium flows into the reflux device 630, and finally flows into the second recovery container 700 from the reflux device 630, thereby realizing the recovery of the cleaning medium.

[0091] It is not difficult to understand that the present application can separate the cleaning medium in the mixed liquid by distillation by setting up a distillation tower 610, a condenser 620 and a reflux device 630 connected in sequence, without destroying the chemical properties of the cleaning medium, and can improve the separation purity of the cleaning medium, so that the recovered cleaning medium can be effectively reused, thereby improving the utilization rate of the cleaning medium and reducing the cost of cleaning the packaging barrel 100, so as to better meet the needs of industrial production.

[0092] Further, see Figure 3 The fourth pipeline 40 and the fifth pipeline 50 are respectively provided with a fourth valve 41 and a fifth valve 51.

[0093] Specifically, the fourth valve 41 and the fifth valve 51 can be manual switch valves or electronic valves. When the first recovery container 300 collects a sufficient amount of the mixed liquid, the fourth valve 41 is opened to allow the mixed liquid to flow into the distillation tower 610, thereby improving the distillation separation efficiency of the cleaning medium in the mixed liquid.

[0094] Similarly, after the reflux device 630 collects a sufficient amount of liquid cleaning medium, the fifth valve 51 is opened to allow the cleaning medium to flow into and be recovered into the second recovery container 700 .

[0095] It is not difficult to understand that by respectively setting the fourth valve 41 and the fifth valve 51 on the fourth pipeline 40 and the fifth pipeline 50, the opening and closing of the fourth pipeline 40 and the fifth pipeline 50 can be controlled in real time according to the actual on-site separation requirements for the cleaning medium, thereby improving the separation efficiency of the cleaning medium in the mixed liquid.

[0096] Further, see Figure 2 and Figure 3 The reflux device 630 is also connected to a second inlet (not shown in the figure) of the distillation tower 610 through a sixth pipeline 60 , and a sixth valve 61 is provided on the sixth pipeline 60 .

[0097] Specifically, the sixth valve 61 is configured as a manual switch valve or an electronic valve. In the process of extracting and separating the cleaning medium from the mixed liquid by distillation in the distillation tower 610, the operator can intermittently detect the purity of the cleaning medium in the reflux 630. When the purity of the cleaning medium in the reflux 630 meets the use requirements, the cleaning medium in the reflux 630 is directly introduced into the second recovery container 700 to complete the collection of the cleaning medium; when the purity of the cleaning medium in the reflux 630 does not meet the use requirements, the sixth valve 61 is opened to allow the cleaning medium in the reflux 630 to enter the distillation tower 610 again for distillation and purification again, and the operation is circulated in this way to improve the separation purity of the cleaning medium until the cleaning medium in the reflux 630 meets the use requirements.

[0098] Of course, a detection component can also be set at the outlet of the reflux device 630, and the detection component is used to detect the purity of the cleaning medium. The sixth valve 61 is configured as an electronic valve, and the sixth valve 61 is electrically connected to the detection component. In this way, the detection component can control the opening and closing of the sixth valve 61 based on the detection signal, thereby improving the degree of automation of the entire cleaning medium recovery process.

[0099] It is not difficult to understand that, by setting a sixth pipeline 60 connecting the distillation tower 610 and the reflux device 630, and setting a sixth valve 61 on the sixth pipeline 60, the cleaning medium recovered by the reflux device 630 can enter the distillation tower 610 for multiple distillation and purification, thereby improving the separation purity of the cleaning medium until the cleaning medium in the reflux device 630 meets the usage requirements.

[0100] In some embodiments of the present application, see Figure 2 and Figure 3 A second filter 800 is provided between the separation device 600 and the second recovery container 700 , and the second filter 800 is used to filter particulate matter in the cleaning medium.

[0101] Specifically, the second filter 800 includes a third sub-filter 810 and a fourth sub-filter 820 that are interconnected, the third sub-filter 810 is configured as a Y-type filter, and is used to filter and remove large particles of metal and non-metallic impurities in the cleaning medium, and the fourth sub-filter 820 is a demagnetization filter, and is used to filter and remove magnetic particles in the cleaning medium. The third sub-filter 810 is located upstream of the fourth sub-filter 820.

[0102] It is not difficult to understand that by setting a second filter 800 between the separation device 600 and the second recovery container 700, particulate impurities in the cleaning medium can be further removed, and the purity of the cleaning medium can be further improved, so that the purity of the cleaning medium recovered by the second recovery container 700 meets the requirements of secondary use.

[0103] In some embodiments of the present application, see Figure 2 and Figure 3 The recovery system further includes a third recovery container 900 , which is connected to the separation device 600 to collect the waste liquid separated by the separation device 600 .

[0104] It is easy to understand that during the process of separating and extracting the cleaning medium in the mixed liquid by distillation in the distillation tower 610 of the separation device 600, waste residue and waste liquid will be separated at the bottom of the distillation tower 610. Based on this, by setting the third recovery container 900, the third recovery container 900 collects the waste liquid separated by the separation device 600. The waste liquid collected by the third recovery container 900 can be treated by professional waste liquid treatment equipment to reduce pollution to the environment.

[0105] In addition, the present application also provides a battery production system, which is used to produce batteries, and the battery production system includes the recycling system of any of the above embodiments.

[0106] Since the battery production system of the present application has the above-mentioned recycling system, it also has the same technical effects brought by the recycling system, that is, it can efficiently complete the cleaning work of the packaging barrel 100, improve the cleaning efficiency and cleaning quality of the packaging barrel 100, meet the needs of industrial production, and can reduce the personal danger of residual electrolyte to operators, improve the safety of cleaning the packaging barrel 100, and thus improve the production efficiency and production quality of the battery.

[0107] In some embodiments of the present application, see Figures 1 to 3 The present application provides a packaging barrel cleaning device, a recycling system and a battery production system. The packaging barrel cleaning device is used to clean and wash batches of electrolyte packaging barrels, which can improve the cleaning efficiency and cleaning quality of the packaging barrels. The recycling system is used to recycle the cleaning medium used for cleaning, improve the utilization rate of the cleaning medium, and reduce the cost of cleaning the electrolyte packaging barrels. The battery production system is used to produce batteries.

[0108] The packaging barrel cleaning device includes a plurality of packaging barrels to be cleaned, a cleaning container and a first recovery container. The plurality of packaging barrels to be cleaned are sequentially connected in series along a preset direction to form a cleaning channel for the circulation of a cleaning medium. The cleaning container is connected to the first packaging barrel in the preset direction, and the cleaning container is configured to supply the cleaning medium to the first packaging barrel. The first recovery container is connected to the last packaging barrel in the preset direction, and is used to collect the mixed liquid discharged from the last packaging barrel.

[0109] The packaging barrel cleaning device of the present application can efficiently complete the cleaning work of the packaging barrel, improve the cleaning efficiency and cleaning quality of the packaging barrel, meet the needs of industrial production, and can reduce the personal danger to operators caused by residual electrolyte, and improve the safety of cleaning the packaging barrel. The separation device performs secondary processing on the received mixed liquid to separate the cleaning medium. The recovery system of the present application can recover the cleaning medium for recycling, improve the utilization rate of the cleaning medium, and reduce the cost of cleaning the packaging barrel to better meet the needs of industrial production.

[0110] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0111] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A packaging barrel cleaning device, characterized in that: include: A plurality of packaging barrels to be cleaned are sequentially connected in series along a preset direction to form a cleaning channel for the circulation of cleaning media; A cleaning container connected to the first packaging barrel in the preset direction and configured to supply a cleaning medium to the first packaging barrel; The first recovery container is connected to the last packaging barrel in the preset direction and is used to collect the mixed liquid discharged from the last packaging barrel.

2. The packaging barrel cleaning device according to claim 1, characterized in that: The last packaging barrel is connected to the first recycling container via a first pipe, the first packaging barrel is connected to the first pipe via a second pipe, a first valve is provided at the connecting end of the first pipe and the first recycling container, and a second valve is provided on the second pipe.

3. The packaging barrel cleaning device according to claim 2, characterized in that: The first pipe is provided with a first filter, the first filter is located upstream of the connection end of the second pipe and the first pipe, and the first filter is used to filter particulate matter in the mixed liquid.

4. The packaging barrel cleaning device according to any one of claims 1 to 3, characterized in that: A circulation pump is provided between the last packaging barrel and the first recycling container.

5. The packaging barrel cleaning device according to any one of claims 1 to 3, characterized in that: Two adjacent packaging barrels are connected via a third pipeline, and a third valve is provided on the third pipeline.

6. A recycling system, characterized in that: It comprises the packaging barrel cleaning device as described in any one of claims 1 to 5.

7. The recovery system according to claim 6, characterized in that: The recovery system also includes: a separation device, connected to the first recovery container, for receiving the mixed liquid in the first recovery container and separating the cleaning medium from the mixed liquid; The second recovery container is connected to the separation device and is used to collect the cleaning medium separated by the separation device.

8. The recovery system according to claim 7, characterized in that: The separation device comprises a distillation tower, a condenser and a reflux device connected in sequence, the first recovery container is connected to the first inlet of the distillation tower through a fourth pipeline, and the reflux device is connected to the second recovery container through a fifth pipeline.

9. The recovery system according to claim 8, characterized in that: The fourth pipeline and the fifth pipeline are respectively provided with a fourth valve and a fifth valve.

10. The recovery system according to claim 8, characterized in that: The reflux device is also connected to the second inlet of the distillation tower through a sixth pipeline, and a sixth valve is provided on the sixth pipeline.

11. The recovery system according to any one of claims 7 to 10, characterized in that: A second filter is provided between the separation device and the second recovery container, and the second filter is used to filter particulate matter in the cleaning medium.

12. The recovery system according to any one of claims 7 to 10, characterized in that: The recovery system further comprises a third recovery container, which is connected to the separation device to collect the waste liquid separated by the separation device.

13. A battery production system, characterized in that: Comprising a recovery system as claimed in any one of claims 6 to 12.

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