Impurity removal device and equipment, cleaning method and battery production system

Abstract

The invention provides an impurity removal device and equipment, a cleaning method and a battery production system, and belongs to the technical field of batteries. The impurity removing device comprises a cylinder body, an adsorption piece and a scraper blade. The cylinder body is provided with a containing cavity extending in the first direction, a first feeding port, a first discharging port and a first sewage draining port, the first feeding port, the first discharging port and the first sewage draining port are communicated with the containing cavity, the adsorption part and the scraping plate are located in the containing cavity, the adsorption part extends in the first direction, the adsorption part penetrates through the scraping plate, and the adsorption part is constructed to be used for adsorbing impurities in materials contained in the containing cavity; the scraping plate is configured to move along the adsorption part so as to scrape impurities adsorbed on the adsorption part. Wherein the first feed port and the first drain outlet are located outside the moving stroke of the scraper blade along the adsorption part, and the first discharge port is located inside the moving stroke of the scraper blade along the adsorption part. In the cleaning process, the cylinder body does not need to be opened, materials cannot make contact with workers, and the safety of the workers is protected.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to an impurity removal device and equipment, a cleaning method, and a battery production system. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] In the production process of batteries, the current collector needs to be coated with battery slurry to form battery pole pieces. Due to the limitations of the production process, the battery slurry is usually mixed with impurities such as metals, which will affect the electrochemical properties of the slurry and then affect the battery performance after the battery is formed. Therefore, in the production process of batteries, it is necessary to remove impurities in the battery slurry to improve the electrochemical performance of the battery. In other industries, there is also a need to remove impurities in materials.

[0004] In the related art, an impurity removal device is generally used to absorb impurities in the material. After the impurity removal device absorbs a certain amount of impurities, the impurity removal device is opened to clean the impurities in the impurity removal device for subsequent use. However, during the cleaning process, the impurity removal device needs to be opened, and the material may come into contact with the staff, affecting the safety of the staff. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems in the background technology. To this end, one object of the present application is to provide an impurity removal device and equipment, a cleaning method and a battery production system to improve the safety during the cleaning process.

[0006] An embodiment of the first aspect of the present application provides an impurity removal device, which includes: a cylinder body, having a accommodating chamber extending along a first direction and a first feed port, a first discharge port and a first sewage discharge port respectively connected to the accommodating chamber; an adsorbent, located in the accommodating chamber and extending along the first direction, the adsorbent being configured to adsorb impurities in the material accommodated in the accommodating chamber; a scraper, located in the accommodating chamber and penetrated by the adsorbent, the scraper being configured to move along the adsorbent to scrape off impurities adsorbed on the adsorbent; wherein the first feed port and the first sewage discharge port are located outside the moving range of the scraper along the adsorbent, and the first discharge port is located within the moving range of the scraper along the adsorbent.

[0007] In the technical solution of the embodiment of the present application, the first feed port and the first discharge port are blocked, and the scraper is controlled to move from the end of the cylinder body away from the first discharge port along the adsorbent toward the first discharge port, so that impurities on the adsorbent are scraped off and discharged from the first discharge port during the movement of the scraper, thereby cleaning the impurity removal device. During the cleaning process, the cylinder body does not need to be opened, and the material will not come into contact with the staff, thereby protecting the safety of the staff.

[0008] In some embodiments, the first feed port and the first drain port are located at the same end of the cylinder body along the first direction. The first feed port and the first drain port are located at the same end of the cylinder body along the first direction X. In this way, when removing impurities, the scraper will be pushed to the end of the cylinder body away from the first drain port during the process of the material being input from the first feed port to the accommodating chamber, which is convenient for subsequent cleaning work.

[0009] In some embodiments, the cylinder body also has a second feed port connected to the accommodating chamber, the second feed port is located outside the movement stroke of the scraper along the adsorbent, and the first feed port and the second feed port are respectively located at opposite ends of the cylinder body along the first direction. A second feed port is provided, and the first feed port and the second feed port are respectively located at opposite ends of the cylinder body along the first direction X. Since the first feed port and the first sewage outlet are located at the same end of the cylinder body along the first direction X, that is, the first sewage outlet and the second feed port are respectively located at opposite ends of the cylinder body along the first direction X, during the cleaning process, the material body can be input into the accommodating chamber through the second feed port to push the scraper to move along the adsorbent toward the first sewage outlet, thereby cleaning the adsorbent, that is, the adsorbent can be cleaned without changing the placement of the impurity removal device.

[0010] In some embodiments, the cylinder body also has a second discharge port and a second sewage outlet connected to the accommodating chamber, the second discharge port is located within the movement stroke of the scraper along the adsorbent, the second sewage outlet is located outside the movement stroke of the scraper along the adsorbent, and the second sewage outlet and the first feed port are respectively located at opposite ends of the cylinder body along the first direction. The second discharge port and the second sewage outlet are set. During the cleaning process, the material can be input into the accommodating chamber through the second feed port to push the scraper along the adsorbent to move toward the first sewage outlet, so as to clean the adsorbent and discharge impurities from the first sewage outlet. At the same time, the impurities in the material input into the accommodating chamber through the second feed port can also be adsorbed by the adsorbent, and the impurities can be discharged through the second discharge port. That is, during the cleaning process of the adsorbent, the impurities of the material can be removed. After the impurities are discharged from the first sewage outlet, the material can be input into the accommodating chamber through the first feed port to push the scraper along the adsorbent to move toward the second sewage outlet, so as to clean the adsorbent and discharge impurities from the second sewage outlet. That is, the cleaning and impurity removal processes can be carried out simultaneously, thereby improving work efficiency.

[0011] In some embodiments, the first discharge port and the second discharge port are respectively close to opposite ends of the cylinder body along the first direction. The first discharge port and the second discharge port are respectively arranged near the ends of the cylinder body, so that more areas in the middle of the cylinder body are vacant and can be used to arrange other components.

[0012] In some embodiments, the first discharge port is close to one end of the cylinder body having the second feed port, and the second discharge port is close to one end of the cylinder body having the first feed port. During the impurity removal process, the material input into the accommodating chamber from the first feed port will be output from the first discharge port, and the first discharge port is close to one end of the cylinder body having the second feed port, so that the first discharge port is farther away from the first feed port, and the path of the material moving in the accommodating chamber is longer, so that more impurities can be adsorbed by the adsorbent, so as to improve the impurity removal effect of the impurity removal device. Similarly, the material input into the accommodating chamber from the second feed port will be output from the second discharge port, and the path of the material moving in the accommodating chamber is also longer, so that more impurities can be adsorbed by the adsorbent, and the impurity removal effect of the impurity removal device can also be improved.

[0013] In some embodiments, the impurity removal device includes a plurality of adsorbents arranged at intervals, and the scraper is penetrated by the plurality of adsorbents. The plurality of adsorbents can adsorb more impurities in the material, thereby improving the effect of impurity removal. At the same time, the scraper is penetrated by the plurality of adsorbents, and the plurality of adsorbents can be cleaned during the movement of the scraper.

[0014] In some embodiments, the scraper is slidably sealed against the inner wall of the cylinder body, and / or the scraper is slidably sealed against the adsorbent. During the impurity removal process, the first discharge port and the first sewage discharge port are respectively located on both sides of the scraper, and the scraper is slidably sealed against the inner wall of the cylinder body, so that during the impurity removal process, the material cannot flow from between the scraper and the cylinder body to the other side of the scraper. Then, the impurity-removed material will be output from the first discharge port and will not be discharged from the first sewage discharge port, thereby reducing waste. During the cleaning process, impurities will not flow from between the scraper and the cylinder body to the other side of the scraper, resulting in the impurities being unable to be discharged, thereby improving the effect of impurity removal. Similarly, the sliding seal between the scraper and the adsorbent can also reduce waste and improve the effect of impurity removal.

[0015] In some embodiments, the adsorbent includes a magnetic adsorbent, which is configured to adsorb metal impurities in the material contained in the containing chamber. The adsorbent includes a magnetic adsorbent, so that the adsorbent can adsorb metal impurities in the material contained in the containing chamber, thereby reducing the influence of the metal impurities on the electrochemical properties of the battery slurry.

[0016] In some embodiments, the scraper is made of non-metallic material, so that the scraper will not be adsorbed by the adsorbent, thereby reducing the impact of the scraper on the adsorbent.

[0017] In some embodiments, the impurity removal device further includes: a first position sensor, located at one end of the cylinder body close to the first feed port, and the first position sensor is configured to detect whether the scraper is at the end of the cylinder body close to the first feed port. The first position sensor can be used to detect the state of the scraper when discharging sewage through the first sewage outlet. When the scraper is at the end of the cylinder body close to the first feed port, it means that the scraper has moved to the first sewage outlet, and impurities have been discharged from the first sewage outlet, thereby achieving the cleaning of the impurity removal device, and materials can be input from the first feed port to remove impurities from the materials. That is, the dynamics of the impurity removal device can be monitored, so that the cleaning and impurity removal processes can be carried out continuously, thereby improving work efficiency.

[0018] In some embodiments, the impurity removal device further includes: a second position sensor, located at the end of the cylinder body away from the first feed port, and the second position sensor is configured to detect whether the scraper is at the end of the cylinder body away from the first feed port. The second position sensor can be used to monitor the state of the scraper when sewage is discharged through the second sewage outlet. When the scraper is at the end of the cylinder body away from the first feed port, it means that the scraper has moved to the second sewage outlet and impurities have been discharged from the second sewage outlet. This allows the state of the scraper to be monitored regardless of whether sewage is discharged from the first sewage outlet or the second sewage outlet, so that the scraper can be monitored during the cleaning and impurity removal process, thereby understanding the working state of the impurity removal device.

[0019] The second aspect of the present application provides an impurity removal device, which includes: a plurality of impurity removal devices of any one of the above embodiments, wherein the plurality of impurity removal devices are connected in series in sequence, so that the material is input into the containing cavity from the respective first feed ports and output from the respective first discharge ports. The impurity removal device provided in the embodiment of the present application can realize the impurity removal process of the material and improve the purity of the material. At the same time, the impurity removal device can realize self-cleaning, and the cylinder does not need to be opened during the cleaning process, and the material will not contact the staff, thereby protecting the safety of the staff.

[0020] In some embodiments, when the cylinder body also has a second feed port, a second discharge port, and a second sewage discharge port connected to the accommodating chamber: for any one of the multiple impurity removal devices, along the flow direction of the material, the first feed port of the impurity removal device is connected to the first discharge port of the adjacent impurity removal device located upstream, the second feed port of the impurity removal device is connected to the second discharge port of the adjacent impurity removal device located upstream, the first discharge port of the impurity removal device is connected to the first feed port of the adjacent impurity removal device located downstream, the second discharge port of the impurity removal device is connected to the second feed port of the adjacent impurity removal device located downstream, and the first sewage discharge port and the second sewage discharge port of the impurity removal device are both connected to the impurity receiving device. Through the above-mentioned connection method, continuous impurity removal and continuous cleaning of the impurity removal equipment can be achieved, and impurities can also be removed during the cleaning process, which is more efficient.

[0021] In some embodiments, the first sewage outlet and the second sewage outlet of the impurity removal device are both connected to the impurity receiving device through the first pipeline, the first feed port of the impurity removal device and the first discharge port of the adjacent impurity removal device located upstream are both connected through the second pipeline, the second feed port of the impurity removal device and the second discharge port of the adjacent impurity removal device located upstream are both connected through the third pipeline, and valves are arranged on the first pipeline, the second pipeline and the third pipeline. It is more convenient to connect each feed port, discharge port and sewage outlet through pipelines, and at the same time, arranging valves on the pipelines facilitates the control of the opening and closing of each feed port, discharge port and sewage outlet.

[0022] The third aspect of the present application provides a battery production system, which includes the impurity removal device in the above embodiment. The battery production system provided by the embodiment of the present application can remove impurities from the battery slurry, and the impurity removal device can achieve self-cleaning, and the cylinder does not need to be opened during the cleaning process, and the material will not come into contact with the staff, thereby protecting the safety of the staff.

[0023] The embodiment of the fourth aspect of the present application provides a cleaning method for cleaning the impurity removal equipment of any one of the above embodiments, the method comprising: for any one of the multiple impurity removal devices: move the scraper from the end of the cylinder body away from the first sewage outlet along the adsorption member toward the first sewage outlet, so as to scrape off the impurities on the adsorption member during the movement of the scraper and discharge the impurities from the first sewage outlet. By controlling the movement of the scraper, the impurities on the adsorption member can be scraped off, and the scraped impurities are squeezed by the scraper to the first sewage outlet and discharged from the first sewage outlet, thereby cleaning the impurity removal device. After cleaning each impurity removal device in the impurity removal device, the cleaning of the impurity removal device is completed. There is no need to open the cylinder body during the entire cleaning process, which reduces the contact between the material and the staff, thereby providing safety for the cleaning work.

[0024] In some embodiments, the method further includes: before moving the scraper from the end of the cylinder away from the first sewage outlet along the adsorption member toward the first sewage outlet, moving the scraper to the end of the cylinder away from the first sewage outlet. The scraper is moved to the end of the cylinder away from the first sewage outlet, so that when the scraper is subsequently controlled to move from the end of the cylinder away from the first sewage outlet along the adsorption member toward the first sewage outlet, the scraper can move a longer distance, scrape off more impurities, and improve the cleaning effect.

[0025] In some embodiments, the first feed port and the first sewage outlet are located at the same end of the cylinder body along the first direction, and moving the scraper to the end of the cylinder body away from the first sewage outlet includes: inputting material into the accommodating chamber through the first feed port, so that the scraper moves to the end of the cylinder body away from the first sewage outlet. During the impurity removal process, the material is input into the accommodating chamber through the first feed port, and the material can push the scraper to move to the end of the cylinder body away from the first sewage outlet, and there is no need to additionally control the movement of the scraper, which is more convenient.

[0026] In some embodiments, moving the scraper from the end of the cylinder away from the first sewage outlet along the adsorbent to the first sewage outlet includes: stopping the input of materials into the accommodating chamber through the first feed port, so that the scraper moves along the adsorbent to the first sewage outlet under the action of gravity. The placement of the impurity removal device can be changed so that the first feed port and the first sewage outlet are both located on the end surface of the bottom end of the cylinder in the direction of gravity, so that when the input of materials into the accommodating chamber through the first feed port is stopped, the scraper can move to the first sewage outlet under the action of gravity, without the need for an additional power device to drive the scraper to move, which is more convenient and reduces energy consumption.

[0027] In some embodiments, when the cylinder body also has a second feed port connected to the accommodating chamber, moving the scraper from the end of the cylinder body away from the first sewage outlet along the adsorbent to the first sewage outlet includes: stopping inputting material into the accommodating chamber through the first feed port; inputting material into the accommodating chamber through the second feed port, so that the scraper moves along the adsorbent to the first sewage outlet. The second feed port is set, and the first sewage outlet and the second feed port are respectively located at opposite ends of the cylinder body along the first direction X. During the cleaning process, the material body can be input into the accommodating chamber through the second feed port to push the scraper to move along the adsorbent to the first sewage outlet, thereby cleaning the adsorbent, that is, the adsorbent can be cleaned without changing the placement of the impurity removal device.

[0028] In some embodiments, when the cylinder body also has a second discharge port and a second sewage discharge port connected to the accommodating chamber, the method further includes: along the flow direction of the material, the material flows from the second discharge port of the impurity removal device located upstream to the second feed port of the impurity removal device located downstream, so that the scraper in the impurity removal device located downstream moves along the adsorbent in the impurity removal device toward the first sewage discharge port in the impurity removal device. Connecting multiple impurity removal devices in series can achieve continuous impurity removal and continuous cleaning of the impurity removal equipment, and impurity removal can also be achieved during the cleaning process, which is more efficient.

[0029] 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

[0030] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0031] Figure 1 A schematic diagram of the structure of an impurity removal device according to some embodiments of the present application;

[0032] Figure 2 It is a schematic diagram of the structure of the impurity removal device of other embodiments of the present application;

[0033] Figure 3 A schematic diagram of the structure of an impurity removal device according to some embodiments of the present application;

[0034] Figure 4 This is an impurity removal flow chart of an impurity removal device according to some embodiments of the present application;

[0035] Figure 5 A cleaning flow chart of an impurity removal device according to some embodiments of the present application;

[0036] Figure 6 A cleaning flow chart of an impurity removal device according to some embodiments of the present application;

[0037] Figure 7 A cleaning flow chart of an impurity removal device according to some embodiments of the present application;

[0038] Figure 8 Another impurity removal flow chart of an impurity removal device according to some embodiments of the present application;

[0039] Fig. 9A flow chart of a cleaning method provided in an embodiment of the present application.

[0040] Description of reference numerals:

[0041] 100. Impurity removal device; 10. Cylinder body; 11. Accommodating chamber; 12. First feed inlet; 13. First discharge outlet; 14. First sewage outlet; 15. Second feed inlet; 16. Second discharge outlet; 17. Second sewage outlet; 20. Adsorbent; 30. Scraper; 40. First position sensor; 50. Second position sensor; 60. First pipeline; 70. Second pipeline; 80. Third pipeline; 90. Valve; 110. Fourth pipeline; 120. Fifth pipeline; 200. Material storage device; 300. Impurity collection device; 400. Material collecting device. DETAILED DESCRIPTION

[0042] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0044] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0045] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0046] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0047] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0048] In the description of the embodiments of the present application, the technical 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0049] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral 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, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0050] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0051] During the production process of the battery, the slurry is coated on the current collector to form the battery pole piece. Due to the limitation of the production process, impurities will be mixed into the slurry, which will affect the performance of the battery slurry. In particular, metal impurities such as iron will also affect the electrochemical properties of the slurry, and then affect the performance of the battery. It is necessary to remove the impurities in the slurry. In other industries, there is also a need to remove impurities from materials. In the related technology, an impurity removal device is used to adsorb impurities in the material. The impurity removal device includes a cylinder body and an adsorbent located in the accommodating cavity of the cylinder body. The adsorbent is used to adsorb impurities in the material. After the adsorbent adsorbs a certain amount of impurities, the cylinder body is opened to clean the impurities on the adsorbent for subsequent continued use. However, some materials are chemical substances and have certain hazards. If the materials come into contact with the staff during the cleaning process, it will affect the safety of the staff.

[0052] The embodiment of the present application provides an impurity removal device, which includes a cylinder, an adsorbent and a scraper. The cylinder has a accommodating chamber extending in a first direction and a first feed port, a first discharge port and a first sewage outlet respectively connected to the accommodating chamber. The adsorbent and the scraper are both located in the accommodating chamber. The adsorbent extends in the first direction and the adsorbent passes through the scraper. The adsorbent is configured to adsorb impurities in the material contained in the accommodating chamber, and the scraper is configured to move along the adsorbent to scrape off impurities adsorbed on the adsorbent. Among them, the first feed port and the first sewage outlet are located outside the moving stroke of the scraper along the adsorbent, and the first discharge port is located within the moving stroke of the scraper along the adsorbent. The adsorbent is used to adsorb impurities in the material contained in the accommodating chamber. When the impurity removal device needs to be cleaned, the scraper is controlled to move along the adsorbent to scrape off impurities adsorbed on the adsorbent, and the impurities are discharged through the first sewage outlet to achieve cleaning of the impurity removal device. During the cleaning process, the cylinder does not need to be opened, and the material will not contact the staff, thereby protecting the safety of the staff.

[0053] The impurity removal device disclosed in the embodiment of the present application can be used in a battery production line to remove impurities in battery slurry and also achieve self-cleaning.

[0054] The present application provides an impurity removal device. Figure 1 Schematic diagram of the structure of the impurity removal device in some embodiments of the present application. Figure 1The impurity removal device 100 includes a cylinder 10, an adsorbent 20 and a scraper 30. The cylinder 10 has a housing chamber 11 extending along a first direction X, and a first feed port 12, a first discharge port 13 and a first sewage discharge port 14 respectively connected to the housing chamber 11. The adsorbent 20 and the scraper 30 are both located in the housing chamber 11. The adsorbent 20 extends along the first direction X, and the adsorbent 20 passes through the scraper 30. The adsorbent 20 is configured to adsorb impurities in the material contained in the housing chamber 11, and the scraper 30 is configured to move along the adsorbent 20 to scrape off impurities adsorbed on the adsorbent 20. Among them, the first feed port 12 and the first sewage discharge port 14 are located outside the moving stroke of the scraper 30 along the adsorbent 20, and the first discharge port 13 is located within the moving stroke of the scraper 30 along the adsorbent 20.

[0055] In the embodiment of the present application, the accommodating chamber 11 in the cylinder body 10 is used to accommodate materials, and the shape of the cylinder body 10 is not limited. Exemplarily, the shape of the cylinder body 10 can be cylindrical or rectangular.

[0056] In some embodiments of the present application, the shape of the cylinder body 10 is the same as the shape of the accommodating chamber 11, so that the accommodating chamber 11 can occupy a larger proportion in the cylinder body 10, that is, the accommodating chamber 11 can accommodate more materials, so that the impurity removal device 100 can remove impurities from more materials in the same time, thereby improving the working efficiency of the impurity removal device 100.

[0057] In the embodiment of the present application, the first feed port 12 , the first discharge port 13 and the first sewage discharge port 14 may be openings on the cylinder body 10 .

[0058] In some embodiments of the present application, the adsorption member 20 may be an adsorption rod, and the size of the adsorption member 20 along the first direction X may be the same as the size of the accommodating chamber 11 along the first direction. In this way, the adsorption member 20 occupies more space in the accommodating chamber 11, so that the material located in the accommodating chamber 11 can be in greater contact with the adsorption member 20, thereby adsorbing more impurities and improving the impurity removal effect of the impurity removal device 100.

[0059] In the embodiment of the present application, the shape of the adsorption member 20 is not limited. For example, the shape of the adsorption member 20 may be cylindrical or rectangular.

[0060] In an embodiment of the present application, the scraper 30 can move between the opposite ends of the adsorption member 20 along the first direction X, so that the scraper 30 moves a longer distance and scrapes off as many impurities adsorbed on the adsorption member 20 as possible, thereby improving the cleaning effect of the impurity removal device 100.

[0061] In an embodiment of the present application, since the scraper 30 moves in the accommodating chamber 11, the moving stroke of the scraper 30 along the adsorption member 20 is located between the end surfaces of the cylinder body 10 at the opposite ends along the first direction X, and the first feed port 12 and the first sewage discharge port 14 can be set on the end surface of any one end of the opposite ends of the cylinder body 10 along the first direction X, so that the first feed port 12 and the first sewage discharge port 14 are located outside the moving stroke of the scraper 30 along the adsorption member 20.

[0062] In an embodiment of the present application, the scraper 30 passes through the side wall of the cylinder along the moving stroke of the adsorbent 20 , and the first discharge port 13 can be set on the side wall of the cylinder so that the first discharge port 13 is located within the moving stroke of the scraper 30 along the adsorbent 20 .

[0063] In the embodiment of the present application, the impurity removal device 100 can be used to remove impurities from the slurry of the battery to reduce the impact of impurities on the battery performance.

[0064] Exemplarily, the slurry of the battery includes positive electrode slurry and negative electrode slurry. For example, the positive electrode slurry includes positive electrode active material, conductive agent, binder and solvent. The positive electrode active material includes at least one of lithium-containing phosphate, lithium transition metal oxide and their respective modified compounds; the conductive agent includes at least one of superconducting carbon, acetylene black, carbon black, Ketjen black, carbon dots, carbon nanotubes, graphene and carbon nanofibers; the binder includes at least one of vinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), vinylidene fluoride-tetrafluoroethylene-propylene terpolymer, vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene terpolymer, tetrafluoroethylene-hexafluoropropylene copolymer and fluorine-containing acrylate resin; the solvent includes N-methylpyrrolidone (NMP).

[0065] When using the impurity removal device 100 provided in the embodiment of the present application to perform impurity removal work, the first sewage outlet 14 is first blocked, and then the material is input into the containing chamber 11 from the first feed port 12. The impurities in the material are adsorbed by the adsorption element 20 in the containing chamber 11 to reduce the impurities in the material. The material after the impurities are removed is output from the first discharge port 13 to proceed to the subsequent process.

[0066] When cleaning the impurity removal device 100 provided in the embodiment of the present application, the first feed port 12 and the first discharge port 13 are blocked, and the scraper 30 is controlled to move from the end of the cylinder body 10 away from the first sewage discharge port 14 along the adsorbent 20 toward the first sewage discharge port 14, so that during the movement of the scraper 30, impurities on the adsorbent 20 are scraped off and the impurities are discharged from the first sewage discharge port 14, thereby cleaning the impurity removal device 100. During the cleaning process, the cylinder body 10 does not need to be opened, and the material will not come into contact with the staff, thereby protecting the safety of the staff.

[0067] In the embodiment of the present application, since the cylinder 10 does not need to be opened during the cleaning process, the material will not contact the external environment, thereby reducing the pollution of the environment to the material. At the same time, the material will not leak, thereby reducing the pollution of the material to the environment.

[0068] In the related art, in order to reduce the pollution of the environment to the material, during the cleaning process of the impurity removal device 100, it is necessary to ensure that the environment in which the impurity removal device 100 is located is clean and sealed, which makes the cleaning procedure more complicated. The impurity removal device 100 provided in the embodiment of the present application does not need to open the cylinder body 10 during the cleaning process, the material will not come into contact with the external environment, and there is no need to perform special treatment on the environment in which the impurity removal device 100 is originally located for the cleaning procedure, which makes the cleaning procedure simpler and can reduce the cleaning time. At the same time, there is no need to open the cylinder body 10, and the operation is simpler.

[0069] According to some embodiments of the present application, see Figure 1 The first feed port 12 and the first sewage outlet 14 are located at the same end of the cylinder body 10 along the first direction X.

[0070] For example, the first feed port 12 and the first sewage discharge port 14 may be disposed on an end surface of the cylinder body 10 at the same end along the first direction X.

[0071] In an embodiment of the present application, the first feed port 12 and the first sewage outlet 14 are located at the same end of the cylinder body 10 along the first direction X. In this way, when removing impurities, the scraper 30 will be pushed to the end of the cylinder body 10 away from the first sewage outlet 14 during the process of material being input from the first feed port 12 into the accommodating chamber 11, which is convenient for subsequent cleaning work.

[0072] In the implementation example of the present application, the placement of the impurity removal device 100 can be changed so that the first feed port 12 and the first sewage outlet 14 are both located on the end face of the bottom end of the cylinder body 10 in the direction of gravity. In this way, when the material is stopped from being input into the accommodating chamber 11 through the first feed port 12, the scraper 30 can move toward the first sewage outlet 14 under the action of gravity. No additional power device is required to drive the scraper 30 to move, which is more convenient and reduces energy consumption.

[0073] According to some embodiments of the present application, Figure 2 Schematic diagram of the structure of the impurity removal device in some other embodiments of the present application. Figure 2 The cylinder body 10 also has a second feed port 15 connected to the accommodating chamber 11. The second feed port 15 is located outside the moving stroke of the scraper 30 along the adsorption member 20. The first feed port 12 and the second feed port 15 are respectively located at opposite ends of the cylinder body 10 along the first direction X.

[0074] For example, the second feed port 15 may be disposed on an end surface of the cylinder body 10 at one end along the first direction X away from the first feed port 12 .

[0075] In an embodiment of the present application, a second feed port 15 is provided, and the first feed port 12 and the second feed port 15 are respectively located at opposite ends of the cylinder body 10 along the first direction X. Since the first feed port 12 and the first sewage outlet 14 are located at the same end of the cylinder body 10 along the first direction X, that is, the first sewage outlet 14 and the second feed port 15 are respectively located at opposite ends of the cylinder body 10 along the first direction X, during the cleaning process, the material body can be input into the accommodating chamber 11 through the second feed port 15 to push the scraper 30 to move along the adsorption member 20 toward the first sewage outlet 14, thereby cleaning the adsorption member 20, that is, the cleaning of the adsorption member 20 can be achieved without changing the placement form of the impurity removal device 100.

[0076] In the embodiment of the present application, the material input into the accommodating chamber 11 through the second material inlet 15 may be material or clean material.

[0077] In an embodiment of the present application, after impurities are discharged from the first sewage outlet 14, materials can be input into the accommodating chamber 11 through the first feed port 12, so that the scraper 30 moves along the adsorption member 20 to the second feed port 15, thereby discharging the materials from the second feed port 15. During the entire cleaning process, there is no need to open the cylinder body 10, thereby improving the safety of cleaning.

[0078] According to some embodiments of the present application, see Figure 2 The cylinder body 10 also has a second discharge port 16 and a second sewage discharge port 17 connected to the accommodating chamber 11. The second discharge port 16 is located within the moving range of the scraper 30 along the adsorption member 20, and the second sewage discharge port 17 is located outside the moving range of the scraper 30 along the adsorption member 20. The second sewage discharge port 17 and the first feed port 12 are respectively located at the opposite ends of the cylinder body 10 along the first direction X.

[0079] In an embodiment of the present application, since the first feed port 12 and the second feed port 15 are respectively located at the opposite ends of the cylinder body 10 along the first direction X, the second sewage outlet 17 and the first feed port 12 are respectively located at the opposite ends of the cylinder body 10 along the first direction X, that is, the second feed port 15 and the second sewage outlet 17 are located at the same end of the cylinder body 10 along the first direction X.

[0080] Exemplarily, the second feed port 15 and the second drain port 17 may be disposed on an end surface of the cylinder body 10 along the first direction X, so that the second feed port 15 and the second drain port 17 are located outside the movement range of the scraper 30 along the adsorbent 20 .

[0081] Exemplarily, the second discharge port 16 may be disposed on a side wall of the cylinder body 10 , so that the second discharge port 16 is located within the movement stroke of the scraper 30 along the adsorption member 20 .

[0082] In the embodiment of the present application, a second discharge port 16 and a second sewage discharge port 17 are provided. During the cleaning process, materials can be input into the accommodating chamber 11 through the second feed port 15 to push the scraper 30 to move along the adsorbent 20 to the first sewage discharge port 14, thereby cleaning the adsorbent 20 and discharging impurities from the first sewage discharge port 14. At the same time, impurities in the materials input into the accommodating chamber 11 through the second feed port 15 can also be adsorbed by the adsorbent 20, and the materials after impurity removal can be discharged through the second discharge port 16, that is, during the cleaning process of the adsorbent 20, impurities in the materials can be removed. After the impurities are discharged from the first sewage discharge port 14, materials can be input into the accommodating chamber 11 through the first feed port 12 to push the scraper 30 to move along the adsorbent 20 to the second sewage discharge port 17, thereby cleaning the adsorbent 20 and discharging impurities from the second sewage discharge port 17. That is, the cleaning and impurity removal processes can be carried out simultaneously, thereby improving work efficiency.

[0083] According to some embodiments of the present application, see Figure 2 The first discharge port 13 and the second discharge port 16 are respectively close to the opposite ends of the cylinder body 10 along the first direction X.

[0084] In the embodiment of the present application, the first discharge port 13 and the second discharge port 16 are respectively arranged near the ends of the cylinder body 10, so that a large area in the middle of the cylinder body 10 is left free for arranging other components.

[0085] According to some embodiments of the present application, the first discharge port 13 is close to an end of the cylinder body 10 having the second feed port 15 , and the second discharge port 16 is close to an end of the cylinder body 10 having the first feed port 12 .

[0086] In the embodiment of the present application, during the impurity removal process, the material input into the containing chamber 11 from the first feed port 12 will be output from the first discharge port 13, and the first discharge port 13 is close to the end of the cylinder body 10 having the second feed port 15, so that the first discharge port 13 is far away from the first feed port 12, and the path of the material moving in the containing chamber 11 is longer, so that more impurities can be adsorbed by the adsorbent 20, so as to improve the impurity removal effect of the impurity removal device 100. Similarly, the material input into the containing chamber 11 from the second feed port 15 will be output from the second discharge port 16, and the path of the material moving in the containing chamber 11 is also longer, so that more impurities can be adsorbed by the adsorbent 20, and the impurity removal effect of the impurity removal device 100 can also be improved.

[0087] According to some embodiments of the present application, the impurity removal device 100 includes a plurality of adsorption members 20 arranged at intervals, and the scraper 30 is penetrated by the plurality of adsorption members 20 .

[0088] For example, a plurality of adsorption members 20 may be arranged at intervals along a certain direction, or a plurality of adsorption members 20 may be arranged at intervals circumferentially, and the embodiments of the present application are not limited to this.

[0089] In the embodiment of the present application, multiple adsorbents 20 are arranged in the impurity removal device 100, which can adsorb more impurities in the material and improve the effect of impurity removal. At the same time, the scraper 30 is penetrated by the multiple adsorbents 20, and the multiple adsorbents 20 can be cleaned during the movement of the scraper 30.

[0090] According to some embodiments of the present application, the scraper 30 is slidably sealed with the inner wall of the cylinder body 10 , and / or the scraper 30 is slidably sealed with the adsorption member 20 .

[0091] In the embodiment of the present application, the scraper 30 and the inner wall of the cylinder body 10 are slidingly sealed, which means that the scraper 30 and the cylinder body 10 can slide against each other, and at the same time, the material on one side of the scraper 30 cannot flow from between the scraper 30 and the cylinder body 10 to the other side of the scraper 30.

[0092] In the embodiment of the present application, the scraper 30 and the adsorption member 20 are slidingly sealed, which means that the scraper 30 and the adsorption member 20 can slide relative to each other, and at the same time, the material on one side of the scraper 30 cannot flow from between the scraper 30 and the adsorption member 20 to the other side of the scraper 30.

[0093] In the embodiment of the present application, the sliding seal can be achieved by a combination of the scraper 30 and the cylinder body 10, and the scraper 30 and the adsorption member 20, or the scraper 30 and the inner wall of the cylinder body 10 can be slidably sealed, and the scraper 30 and the adsorption member 20 can be slidably sealed.

[0094] In an embodiment of the present application, during the impurity removal process, the first discharge port 13 and the first sewage discharge port 14 are respectively located on both sides of the scraper 30, and the scraper 30 and the inner wall of the cylinder body 10 are slidably sealed, so that during the impurity removal process, the material cannot flow from between the scraper 30 and the cylinder body 10 to the other side of the scraper 30, then the impurity-removed material will be output from the first discharge port 13, and will not be discharged from the first sewage discharge port 14, thereby reducing waste. During the cleaning process, impurities will not flow from between the scraper 30 and the cylinder body 10 to the other side of the scraper 30, resulting in the impurities being unable to be discharged, thereby improving the effect of impurity removal. Similarly, the sliding seal between the scraper 30 and the adsorbent 20 can also reduce waste and improve the effect of impurity removal.

[0095] According to some embodiments of the present application, the adsorbent 20 includes a magnetic adsorbent, which is configured to adsorb metal impurities in the material contained in the containing chamber 11 .

[0096] In an embodiment of the present application, the impurity removal device 100 can be used to remove impurities in battery slurry. The impurities in the battery slurry include metal impurities, which may affect the electrochemical properties of the battery slurry.

[0097] Exemplarily, the adsorption member 20 may include a permanent magnetic bar.

[0098] In an embodiment of the present application, the adsorbent 20 includes a magnetic adsorbent, so that the adsorbent 20 can adsorb metal impurities in the material contained in the containing chamber 11, thereby reducing the influence of the metal impurities on the electrochemical properties of the battery slurry.

[0099] According to some embodiments of the present application, the scraper 30 is made of non-metallic material.

[0100] The scraper 30 is made of a non-metal material so that the scraper 30 will not be adsorbed by the adsorbent 20 , thereby reducing the influence of the scraper 30 on the adsorbent 20 .

[0101] Exemplarily, the material of the scraper 30 may include at least one of polyethylene and rubber.

[0102] According to some embodiments of the present application, see Figure 1 and Figure 2 The impurity removal device 100 further includes a first position sensor 40 , which is located at one end of the cylinder body 10 close to the first feed port 12 , and is configured to detect whether the scraper 30 is located at the end of the cylinder body 10 close to the first feed port 12 .

[0103] For example, the first position sensor 40 may be disposed on a side wall of the cylinder block 10 .

[0104] In the embodiment of the present application, the first position sensor 40 can be used to monitor the state of the scraper 30 when the waste is discharged through the first waste discharge port 14. When the scraper 30 is at one end of the cylinder 10 close to the first feed port 12, it means that the scraper 30 has moved to the first waste discharge port 14, and the impurities have been discharged from the first waste discharge port 14, thus achieving the cleaning of the impurity removal device 100. The material can be input from the first feed port 12 to remove impurities from the material. That is, the dynamics of the impurity removal device 100 can be monitored, so that the cleaning and impurity removal processes can be carried out continuously, thereby improving work efficiency.

[0105] According to some embodiments of the present application, the impurity removal device 100 also includes a second position sensor 50, which is located at the end of the cylinder body 10 away from the first feed port 12, and the second position sensor 50 is configured to detect whether the scraper 30 is at the end of the cylinder body 10 away from the first feed port 12.

[0106] For example, the second position sensor 50 may be disposed on a side wall of the cylinder block 10 .

[0107] In the embodiment of the present application, the second position sensor 50 can be used to monitor the state of the scraper 30 when the waste is discharged through the second waste discharge port 17. When the scraper 30 is at the end of the cylinder 10 away from the first feed port 12, it means that the scraper 30 has moved to the second waste discharge port 17 and the impurities have been discharged from the second waste discharge port 17. The state of the scraper 30 can be monitored whether the waste is discharged from the first waste discharge port 14 or the second waste discharge port 17, so that the scraper 30 can be monitored during the cleaning and impurity removal process, thereby understanding the working state of the impurity removal device 100.

[0108] The embodiment of the present application also provides an impurity removal device, Figure 3 This is a schematic diagram of the structure of the impurity removal equipment in some embodiments of the present application. Figure 3 The impurity removal equipment includes a plurality of impurity removal devices 100 of any one of the above embodiments, and the plurality of impurity removal devices 100 are connected in series in sequence so that the material is input into the containing cavity 11 from the respective first feed ports 12 and output from the respective first discharge ports 13.

[0109] Figure 3 In the impurity removal device shown, the impurity removal device includes three impurity removal devices 100. In other implementations, the impurity removal device may include a greater or lesser number of impurity removal devices 100. The number of impurity removal devices 100 may be set according to requirements, which is more flexible.

[0110] In an embodiment of the present application, a plurality of impurity removal devices 100 are connected in series in sequence, so that the material is input into the containing chamber 11 from their respective first feed ports 12 and output from their respective first discharge ports 13, indicating that after the material is impurity-removed in the previous impurity removal device 100, it enters the next impurity removal device 100 for impurity removal, so that the material can enter multiple impurity removal devices 100 for impurity removal, so that the impurities in the material are further reduced, thereby improving the purity of the material.

[0111] The impurity removal equipment provided in the embodiment of the present application can realize the impurity removal process of the material and improve the purity of the material. At the same time, the impurity removal device 100 can achieve self-cleaning, and the cylinder body does not need to be opened during the cleaning process. The material will not come into contact with the staff, thereby protecting the safety of the staff.

[0112] According to some embodiments of the present application, see Figure 3 , when the cylinder body 10 also has a second feed port 15, a second discharge port 16 and a second sewage discharge port 17 connected to the accommodating chamber 11: for any impurity removal device 100 among the multiple impurity removal devices 100, along the flow direction of the material, the first feed port 12 of the impurity removal device 100 is connected to the first discharge port 13 of the adjacent impurity removal device 100 located upstream, the second feed port 15 of the impurity removal device 100 is connected to the second discharge port 16 of the adjacent impurity removal device 100 located upstream, the first discharge port 13 of the impurity removal device 100 is connected to the first feed port 12 of the adjacent impurity removal device 100 located downstream, the second discharge port 16 of the impurity removal device 100 is connected to the second feed port 15 of the adjacent impurity removal device 100 located downstream, and the first sewage discharge port 14 and the second sewage discharge port 17 of the impurity removal device 100 are both connected to the impurity receiving device 300.

[0113] Figure 4 This is a flow chart of impurity removal of impurity removal equipment in some embodiments of the present application. Figure 4 The three impurity removal devices 100 in the impurity removal equipment are A, B and C, wherein the first feed port 12 and the second feed port 15 of A are both connected to the material storage device 200, the first discharge port 13 of A is connected to the first feed port 12 of B, the second discharge port 16 of A is connected to the second feed port 15 of B, and the first sewage outlet 14 and the second sewage outlet 17 of A are both connected to the impurity receiving device 300; the first discharge port 13 of B is connected to the first feed port 12 of C, the second discharge port 16 of B is connected to the second feed port 15 of C, and the first sewage outlet 14 and the second sewage outlet 17 of B are both connected to the impurity receiving device 300; the first discharge port 13 and the second discharge port 16 of C are both connected to the material collecting device 400, and the first sewage outlet 14 and the second sewage outlet 17 of C are both connected to the impurity receiving device 300.

[0114] by Figure 4For example, the impurity removal process of the impurity removal equipment in the embodiment of the present application is introduced. The material enters the containing chamber 11 of A from the material storage device 200 through the first feed port 12 of A. The material pushes the scraper 30 in A to move toward the second feed port 15 of A. The material is adsorbed by the adsorption component 20 of A in the containing chamber 11 of A, and enters the containing chamber 11 of B from the first discharge port 13 of A. The material pushes the scraper 30 in B to move toward the second feed port 15 of B. The material is adsorbed by the adsorption component 20 of B in the containing chamber 11 of B, and enters the containing chamber 11 of C from the first discharge port 13 of B. The material pushes the scraper 30 in C to move toward the second feed port 15 of C. The material is adsorbed by the adsorption component 20 of C in the containing chamber 11 of C, and enters the material collecting device 400 from the first discharge port 13 of C, thereby realizing the impurity removal of the material. The entire impurity removal process is carried out continuously without stagnation, and the work efficiency is higher.

[0115] in, Figure 4 The impurity removal of the material is explained by taking the example that the material enters the containing chamber 11 from the first feed port 12 and is discharged from the first discharge port 13. At this time, the first sewage outlet 14, the second feed port 15, the second discharge port 16 and the second sewage outlet 17 are all in a closed state.

[0116] Figures 5 to 7 This is a cleaning flow chart of the impurity removal equipment in some embodiments of the present application. Figure 4 When the impurity removal equipment shown requires cleaning, refer to Figure 5 , close the first feed port 12, the first discharge port 13, the second discharge port 16 and the second sewage outlet 17 of A, input material into the containing chamber 11 of A through the second feed port 15 of A, the material pushes the scraper 30 in A to move toward the first sewage outlet 14 of A, the scraper 30 scrapes off the impurities on the adsorption member 20, and discharges the impurities from the first sewage outlet 14 of A; after the impurities in A are discharged, see Figure 6 , close the first sewage outlet 14 of A, open the second discharge port 16 of A, close the first feed port 12, the first discharge port 13, the second discharge port 16 and the second sewage outlet 17 of B, continue to input materials into A, the materials enter the second feed port 15 of B from the second discharge port 16 of A, and after the materials enter the accommodating chamber 11 of B, they push the scraper 30 in B to move toward the first sewage outlet 14 of B, and the scraper 30 scrapes off the impurities on the adsorbent 20 and discharges the impurities from the first sewage outlet 14; after the impurities in B are discharged, see Figure 7, close the first sewage outlet 14 of B, open the second discharge port 16 of B, close the first feed port 12, the first discharge port 13, the second discharge port 16 and the second sewage outlet 17 of C, the material enters the second feed port 15 of C from the second discharge port 16 of B, and after the material enters the accommodating chamber 11 of C, it pushes the scraper 30 in C to move toward the first sewage outlet 14 of C, the scraper 30 scrapes off the impurities on the adsorption part 20, and discharges the impurities from the first sewage outlet 14 of C, completing the entire cleaning process.

[0117] Figure 8 Another impurity removal flow chart of the impurity removal equipment of some embodiments of the present application. Figure 8 When the above is completed Figures 5 to 7 After the cleaning process, the first sewage outlet 14 of C can be closed, the second discharge port 16 of C can be opened, and the material can continue to be input into the containing chamber 11 of A through the second feed port 15 of A. The material enters A, B and C in turn for impurity removal, that is, Figure 8 In the impurity removal device shown, the impurity removal material enters the accommodating chamber 11 from the second feed port 15 and is output from the second discharge port 16. At this time, the first feed port 12, the first discharge port 13, the first sewage outlet 14 and the second sewage outlet 17 are all in a closed state.

[0118] During the impurity removal process, the first discharge port 13 and the first feed port 12 are located at opposite ends of the cylinder body 10, and the second feed port 15 and the second discharge port 16 are located at opposite ends of the cylinder body 10, so that during the impurity removal process, the material and the adsorption element 20 have a longer contact distance, so that the adsorption element 20 can adsorb more impurities and the impurity removal effect is better.

[0119] In the embodiment of the present application, during the impurity removal and cleaning process, the position of the scraper 30 can be detected by the first position sensor 40 and the second position sensor 50, and whether the impurities have been discharged can be determined by the position of the scraper 30.

[0120] In the embodiment of the present application, through the above-mentioned connection method, continuous impurity removal and continuous cleaning of the impurity removal equipment can be achieved, and impurity removal can also be achieved during the cleaning process without stopping the operation, which has higher work efficiency.

[0121] According to some embodiments of the present application, see Figure 3The first sewage outlet 14 and the second sewage outlet 17 of the impurity removal device 100 are both connected to the impurity receiving device 300 through the first pipe 60, the first feed port 12 of the impurity removal device 100 and the first discharge port 13 of the adjacent impurity removal device 100 located upstream are both connected through the second pipe 70, the second feed port 15 of the impurity removal device 100 and the second discharge port 16 of the adjacent impurity removal device 100 located upstream are both connected through the third pipe 80, and valves 90 are arranged on the first pipe 60, the second pipe 70 and the third pipe 80.

[0122] In the embodiment of the present application, the valve 90 can be a manual valve or an electronic valve.

[0123] In the embodiment of the present application, it is more convenient to connect the various feed ports, discharge ports and sewage outlets through pipelines, and at the same time, valves 90 are arranged on the pipelines to conveniently control the opening and closing of the various feed ports, discharge ports and sewage outlets.

[0124] In the embodiment of the present application, since the position of the scraper 30 can be detected by the first position sensor 40 and the second position sensor 50, after the first position sensor 40, the second position sensor 50 and the valve 90 are connected to the controller, the opening and closing of the valve 90 can be controlled by the controller according to the position of the scraper 30, thereby realizing automatic impurity removal and automatic cleaning.

[0125] Exemplarily, the first feed port 12 and the second feed port 15 are connected to the material storage device 200 through the fourth pipeline 110 , and the first discharge port 13 and the second discharge port 16 are connected to the material collecting device 400 through the fifth pipeline 120 .

[0126] An embodiment of the present application further provides a battery production system, which includes the impurity removal device of any one of the above embodiments.

[0127] The battery production system provided in the embodiment of the present application can remove impurities from the battery slurry. At the same time, the impurity removal equipment can achieve self-cleaning. There is no need to open the cylinder during the cleaning process, and the material will not come into contact with the staff, thereby protecting the safety of the staff.

[0128] The embodiment of the present application also provides a cleaning method, which is used for the impurity removal device in any one of the above embodiments. Fig. 9 A flow chart of a cleaning method provided in an embodiment of the present application is shown in FIG. Fig. 9 , the method comprising:

[0129] For any one of the plurality of impurity removing devices.

[0130] Step S101: Move the scraper from one end of the cylinder body away from the first sewage outlet along the adsorption member toward the first sewage outlet, so as to scrape off impurities on the adsorption member and discharge the impurities from the first sewage outlet during the movement of the scraper.

[0131] By controlling the movement of the scraper, the impurities on the adsorption part can be scraped off, and the scraped impurities are squeezed by the scraper to the first sewage outlet and discharged from the first sewage outlet, thereby cleaning the impurity removal device. After cleaning each impurity removal device in the impurity removal device, the cleaning of the impurity removal device is completed. During the entire cleaning process, there is no need to open the cylinder body, which reduces the contact between the material and the staff, thereby providing safety for the cleaning work.

[0132] According to some embodiments of the present application, the method further includes:

[0133] Step S102: before the scraper is moved from the end of the cylinder body away from the first sewage outlet along the adsorption member toward the first sewage outlet, the scraper is moved to the end of the cylinder body away from the first sewage outlet.

[0134] In an embodiment of the present application, the scraper is moved to the end of the cylinder body away from the first sewage outlet. In this way, when the scraper is subsequently controlled to move from the end of the cylinder body away from the first sewage outlet along the adsorption member to the first sewage outlet, the scraper can move a longer distance, scrape off more impurities, and improve the cleaning effect.

[0135] According to some embodiments of the present application, the first feed port and the first sewage outlet are located at the same end of the cylinder body along the first direction, step S102:

[0136] Step S121: inputting material into the containing chamber through the first feed port, so that the scraper moves to the end of the cylinder body away from the first sewage outlet.

[0137] In an embodiment of the present application, during the impurity removal process, material is input into the accommodating chamber through the first feed port, and the material can push the scraper to move to the end of the cylinder body away from the first sewage outlet. There is no need to additionally control the movement of the scraper, which is more convenient.

[0138] According to some embodiments of the present application, step S101 includes:

[0139] Step S111: stop inputting materials into the accommodating chamber through the first feed port, so that the scraper moves along the adsorption member toward the first sewage outlet under the action of gravity.

[0140] The placement of the impurity removal device can be changed so that the first feed port and the first sewage outlet are both located on the end surface of the bottom end of the cylinder body in the direction of gravity. In this way, when the material is stopped being input into the accommodating chamber through the first feed port, the scraper can move toward the first sewage outlet under the action of gravity. No additional power device is required to drive the scraper to move, which is more convenient and reduces energy consumption.

[0141] According to some embodiments of the present application, when the cylinder body further has a second feed port connected to the accommodating chamber, step S101 includes:

[0142] Step S112: stop inputting materials into the containing chamber through the first feed port.

[0143] Step S113: inputting material into the containing chamber through the second feed port, so that the scraper moves along the adsorption member toward the first sewage outlet.

[0144] In an embodiment of the present application, a second feed port is provided, and the first sewage outlet and the second feed port are respectively located at opposite ends of the cylinder body along the first direction X. During the cleaning process, the material body can be input into the accommodating chamber through the second feed port to push the scraper to move along the adsorption member toward the first sewage outlet, thereby achieving cleaning of the adsorption member. In other words, the cleaning of the adsorption member can be achieved without changing the placement of the impurity removal device.

[0145] According to some embodiments of the present application, when the cylinder body further has a second discharge port and a second sewage discharge port communicated with the accommodating chamber, the method further includes:

[0146] Step S103: along the flow direction of the material, make the material flow from the second discharge port of the impurity removal device located upstream to the second feed port of the impurity removal device located downstream, so that the scraper in the impurity removal device located downstream moves along the adsorption part in the impurity removal device toward the first sewage outlet in the impurity removal device.

[0147] The connection mode and working mode of the multiple impurity removal devices may refer to the above description of the impurity removal equipment.

[0148] In the embodiments of the present application, multiple impurity removal devices are connected in series, which can achieve continuous impurity removal and continuous cleaning of the impurity removal equipment, and impurity removal can also be achieved during the cleaning process, which has higher work efficiency.

[0149] An embodiment of the present application provides an impurity removal device. The impurity removal device 100 includes a cylinder body 10 , a suction member 20 , a scraper 30 , a first position sensor 40 , and a second position sensor 50 .

[0150] The cylinder body 10 has a housing chamber 11 extending along a first direction X, and a first feed port 12, a first discharge port 13, a first sewage discharge port 14, a second feed port 15, a second discharge port 16, and a second sewage discharge port 17 respectively connected to the housing chamber 11. The first feed port 12, the first sewage discharge port 14, the second feed port 15, and the second sewage discharge port 17 are located outside the movement stroke of the scraper 30 along the adsorption member 20, and the first discharge port 13 and the second discharge port 16 are located within the movement stroke of the scraper 30 along the adsorption member 20. The first feed port 12 and the first sewage outlet 14 are located at the same end of the cylinder body 10 along the first direction X; the first feed port 12 and the second feed port 15 are respectively located at the opposite ends of the cylinder body 10 along the first direction X; the second sewage outlet 17 and the first feed port 12 are respectively located at the opposite ends of the cylinder body 10 along the first direction X; the first discharge port 13 is close to the end of the cylinder body 10 having the second feed port 15, and the second discharge port 16 is close to the end of the cylinder body 10 having the first feed port 12.

[0151] The adsorbent 20 and the scraper 30 are both located in the accommodating chamber 11, the adsorbent 20 extends along the first direction X, and the adsorbent 20 passes through the scraper 30, the adsorbent 20 is configured to adsorb impurities in the material contained in the accommodating chamber 11, and the scraper 30 is configured to move along the adsorbent 20 to scrape off impurities adsorbed on the adsorbent 20. The scraper 30 is slidably sealed with the inner side wall of the cylinder body 10, and the scraper 30 is slidably sealed with the adsorbent 20.

[0152] The first position sensor 40 is located at one end of the cylinder body 10 close to the first feed port 12, and is configured to detect whether the scraper 30 is at the end of the cylinder body 10 close to the first feed port 12. The second position sensor 50 is located at one end of the cylinder body 10 away from the first feed port 12, and is configured to detect whether the scraper 30 is at the end of the cylinder body 10 away from the first feed port 12.

[0153] The embodiment of the present application provides an impurity removal arrangement, the impurity removal equipment includes a plurality of impurity removal devices 100, the plurality of impurity removal devices 100 are sequentially connected in series, so that the material is input into the containing chamber 11 from the respective first feed ports 12, and output from the respective first discharge ports 13. For any one of the plurality of impurity removal devices 100, along the flow direction of the material, the first feed port 12 of the impurity removal device 100 is communicated with the first discharge port 13 of the adjacent impurity removal device 100 located upstream, the second feed port 15 of the impurity removal device 100 is communicated with the second discharge port 16 of the adjacent impurity removal device 100 located upstream, the first discharge port 13 of the impurity removal device 100 is communicated with the first feed port 12 of the adjacent impurity removal device 100 located downstream, the second discharge port 16 of the impurity removal device 100 is communicated with the second feed port 15 of the adjacent impurity removal device 100 located downstream, and the first sewage outlet 14 and the second sewage outlet 17 of the impurity removal device 100 are both communicated with the impurity receiving device 300. The first sewage outlet 14 and the second sewage outlet 17 of the impurity removal device 100 are both connected to the impurity receiving device 300 through the first pipe 60, the first feed port 12 of the impurity removal device 100 and the first discharge port 13 of the adjacent impurity removal device 100 located upstream are both connected through the second pipe 70, the second feed port 15 of the impurity removal device 100 and the second discharge port 16 of the adjacent impurity removal device 100 located upstream are both connected through the third pipe 80, and valves 90 are arranged on the first pipe 60, the second pipe 70 and the third pipe 80.

[0154] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An impurity removal device (100), characterized in that: The impurity removal device (100) comprises: A cylinder body (10) having a containing cavity (11) extending in a first direction, and a first feed port (12), a first discharge port (13) and a first sewage discharge port (14) respectively connected to the containing cavity (11); an adsorption member (20), located in the containing cavity (11) and extending along the first direction, the adsorption member (20) being configured to adsorb impurities in the material contained in the containing cavity (11); a scraper (30) located in the accommodating cavity (11) and penetrating the adsorbent (20), the scraper (30) being configured to be movable along the adsorbent (20) to scrape off impurities adsorbed on the adsorbent (20); The first feed port (12) and the first sewage discharge port (14) are located outside the movement range of the scraper (30) along the adsorption component (20), and the first discharge port (13) is located within the movement range of the scraper (30) along the adsorption component (20).

2. The impurity removal device according to claim 1, characterized in that: The first feed port (12) and the first sewage outlet (14) are located at the same end of the cylinder body (10) along the first direction.

3. The impurity removal device according to claim 2, characterized in that: The cylinder body (10) also has a second feed port (15) connected to the accommodating chamber (11), and the second feed port (15) is located outside the moving stroke of the scraper (30) along the adsorption member (20), and the first feed port (12) and the second feed port (15) are respectively located at opposite ends of the cylinder body (10) along the first direction.

4. The impurity removal device according to claim 3, characterized in that: The cylinder body (10) further comprises a second discharge port (16) and a second sewage discharge port (17) which are connected to the accommodating chamber (11); the second discharge port (16) is located within the movement range of the scraper (30) along the adsorption member (20); the second sewage discharge port (17) is located outside the movement range of the scraper (30) along the adsorption member (20); the second sewage discharge port (17) and the first feed port (12) are respectively located at opposite ends of the cylinder body (10) along the first direction.

5. The impurity removal device according to claim 4, characterized in that: The first discharge port (13) and the second discharge port (16) are respectively close to two opposite ends of the cylinder body (10) along the first direction.

6. The impurity removal device according to claim 5, characterized in that: The first discharge port (13) is close to an end of the cylinder body (10) having the second feed port (15), and the second discharge port (16) is close to an end of the cylinder body (10) having the first feed port (12).

7. The impurity removal device according to any one of claims 1 to 6, characterized in that: The impurity removal device (100) comprises a plurality of adsorption members (20) arranged at intervals, and the scraper (30) is penetrated by the plurality of adsorption members (20).

8. The impurity removal device according to any one of claims 1 to 7, characterized in that: The scraper (30) is slidably sealed with the inner wall of the cylinder body (10), and / or the scraper (30) is slidably sealed with the adsorption member (20).

9. The impurity removal device according to any one of claims 1 to 8, characterized in that: The adsorbent (20) comprises a magnetic adsorbent, and the magnetic adsorbent is configured to adsorb metal impurities in the material contained in the containing chamber (11).

10. The impurity removal device according to any one of claims 1 to 9, characterized in that: The scraper (30) is made of non-metallic material.

11. The impurity removal device according to any one of claims 1 to 10, characterized in that: The impurity removal device (100) further comprises: A first position sensor (40) is located at one end of the cylinder body (10) close to the first feed port (12), and the first position sensor (40) is configured to detect whether the scraper (30) is located at the end of the cylinder body (10) close to the first feed port (12).

12. The impurity removal device according to any one of claims 1 to 11, characterized in that: The impurity removal device (100) further comprises: A second position sensor (50) is located at an end of the cylinder body (10) away from the first feed port (12), and the second position sensor (50) is configured to detect whether the scraper (30) is located at the end of the cylinder body (10) away from the first feed port (12).

13. An impurity removal device, characterized in that: The impurity removal equipment comprises: A plurality of impurity removal devices (100) as described in any one of claims 1 to 12, wherein the plurality of impurity removal devices (100) are connected in series in sequence so that the material is input into the containing chamber (11) from the respective first feed ports (12) and is output from the respective first discharge ports (13).

14. The impurity removal device according to claim 13, characterized in that When the cylinder body (10) further comprises a second feed port (15), a second discharge port (16) and a second sewage discharge port (17) which are communicated with the accommodating chamber (11): For any one of the plurality of impurity removal devices (100), along the flow direction of the material, the first feed port (12) of the impurity removal device (100) is communicated with the first discharge port (13) of the adjacent impurity removal device (100) located upstream, the second feed port (15) of the impurity removal device (100) is communicated with the second discharge port (16) of the adjacent impurity removal device (100) located upstream, the first discharge port (13) of the impurity removal device (100) is communicated with the first feed port (12) of the adjacent impurity removal device (100) located downstream, the second discharge port (16) of the impurity removal device (100) is communicated with the second feed port (15) of the adjacent impurity removal device (100) located downstream, and the first sewage outlet (14) and the second sewage outlet (17) of the impurity removal device (100) are both communicated with an impurity receiving device.

15. The impurity removal device according to claim 14, characterized in that The first sewage outlet (14) and the second sewage outlet (17) of the impurity removal device (100) are both connected to the impurity receiving device through a first pipe (60); the first feed port (12) of the impurity removal device (100) and the first discharge port (13) of an adjacent impurity removal device (100) located upstream are both connected through a second pipe (70); the second feed port (15) of the impurity removal device (100) and the second discharge port (16) of an adjacent impurity removal device (100) located upstream are both connected through a third pipe (80); and valves (90) are arranged on the first pipe (60), the second pipe (70) and the third pipe (80).

16. A battery production system, characterized in that: The battery production system includes the impurity removal apparatus according to any one of claims 13 to 15.

17. A cleaning method for cleaning the impurity removal device according to any one of claims 13 to 15, characterized in that: The method comprises: For any one impurity removal device (100) among the plurality of impurity removal devices (100): The scraper is moved from one end of the cylinder body away from the first sewage outlet along the adsorption member toward the first sewage outlet, so as to scrape off impurities on the adsorption member and discharge the impurities from the first sewage outlet during the movement of the scraper.

18. The method according to claim 17, characterized in that The method further comprises: Before the scraper is moved from the end of the cylinder body away from the first sewage outlet along the adsorption member toward the first sewage outlet, the scraper is moved to the end of the cylinder body away from the first sewage outlet.

19. The method according to claim 18, characterized in that The first feed port and the first sewage outlet are located at the same end of the cylinder body along the first direction, and moving the scraper to the end of the cylinder body away from the first sewage outlet comprises: Materials are input into the accommodating chamber through the first feed port, so that the scraper moves to an end of the cylinder body away from the first sewage outlet.

20. The method according to claim 19, characterized in that The step of moving the scraper from one end of the cylinder body away from the first sewage outlet along the adsorption member toward the first sewage outlet comprises: Stop inputting materials into the accommodating chamber through the first feed port, so that the scraper moves along the adsorption member toward the first sewage outlet under the action of gravity.

21. The method according to claim 19, characterized in that When the cylinder body further has a second feed port connected to the accommodating chamber, moving the scraper from an end of the cylinder body away from the first sewage outlet along the adsorbent toward the first sewage outlet comprises: Stop feeding material into the containing chamber through the first feed inlet; Materials are input into the accommodating chamber through the second feed port, so that the scraper moves along the adsorption member toward the first sewage outlet.

22. The method according to claim 21, characterized in that When the cylinder body further has a second discharge port and a second sewage discharge port communicated with the accommodating cavity, the method further includes: Along the flow direction of the material, the material flows from the second discharge port of the impurity removal device located upstream to the second feed port of the impurity removal device located downstream, so that the scraper in the impurity removal device located downstream moves along the adsorption part in the impurity removal device toward the first sewage outlet in the impurity removal device.

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