Drying System

Abstract

The present application discloses a drying system. The drying system includes a drying chamber, a collecting device, and a blowing device. The drying chamber is used to accommodate materials to be dried. The collecting device is connected to a material outlet of the drying chamber. The blowing device is connected to an inlet of the drying chamber and used to blow air into the drying chamber. Here, the blowing device includes a first condensing mechanism, a first heating mechanism, and a first water content sensor, along the blowing direction of the blowing device, the first condensing mechanism is upstream of the first heating mechanism, the first condensing mechanism is used to reduce the water content of the gas entering the drying chamber, the first heating mechanism is used to heat the gas entering the drying chamber, and the first water content sensor is installed between the first condensing mechanism and the first heating mechanism and is used to detect the water content of the gas discharged by the first condensing mechanism and generate a water content signal. The drying system according to the present application can effectively dry materials and further improve the reliability of the battery.

Description

[Technical Field]

[0001] [CROSS-REFERENCE TO RELATED APPLICATIONS] This application claims priority to Chinese Patent Application No. 202320568034.5 entitled "Drying System," filed on March 22, 2023, the entire contents of which are incorporated herein by reference.

[0002] FIELD OF THE INVENTION This application relates to the field of battery technology, and more particularly to drying systems. [Background technology]

[0003] Energy conservation and the reduction of pollutant emissions are key to the sustainable development of the automotive industry, and electric vehicles, with their energy-saving and environmental advantages, have become an important component of this industry. Battery technology is one of the key elements in the development of electric vehicles.

[0004] In the development of battery technology, how to improve the reliability of batteries is one of the technical problems that needs to be solved as soon as possible. Summary of the Invention

[0005] The present application provides a drying system that can improve battery reliability.

[0006] This application is realized by the following technical solutions:

[0007] The present application provides a drying system, the drying system including a drying chamber, a collecting device, and a blowing device. The drying chamber is used to store material to be dried. The collecting device is connected to a material outlet of the drying chamber. The blowing device is connected to an inlet of the drying chamber and is used to blow air into the drying chamber. Here, the blowing device includes a first condensing mechanism, a first heating mechanism, and a first water content sensor, the first condensing mechanism being upstream of the first heating mechanism along the blowing direction of the blowing device. The first condensing mechanism is used to reduce the water content of gas entering the drying chamber. The first heating mechanism is used to heat the gas entering the drying chamber. The first water content sensor is installed between the first condensing mechanism and the first heating mechanism and is used to detect the water content of the gas discharged by the first condensing mechanism and generate a water content signal.

[0008] In the above solution, the blower includes a first condensing mechanism and a first heating mechanism, and the first condensing mechanism condenses the gas to reduce its water content, and the first heating mechanism heats the condensed gas so that the high-temperature gas with a low water content enters the drying chamber to effectively dry the material. On the one hand, the installation of the first condensing mechanism meets the drying requirements of the material, allows the material to have a relatively low water content, and improves the quality of the material. On the other hand, improving the drying effect of the material by reducing the water content of the gas entering the drying chamber can effectively reduce the risk of material quality being reduced due to changes in the physical characteristics of the material caused by high temperatures, compared to a solution that improves the drying effect of the material by increasing the drying temperature.

[0010] At the same time, by installing a first water content sensor between the first condensing mechanism and the first heating mechanism, the water content of the gas discharged by the first condensing mechanism can be detected and a water content signal can be generated, thereby determining the water content of the gas sent to the drying chamber by the air blower. An operator or a control device can then adjust the power of the first condensing mechanism based on the water content signal. If the water content is too high, i.e., does not meet the proper requirements, the power of the first condensing mechanism can be increased so that the water content meets the proper requirements. If the water content is too low, the power of the first condensing mechanism can be reduced, thereby saving energy and controlling costs. In some embodiments, the material may be an adhesive used in a battery, and the adhesive may be a material that bonds an active material layer and a current collector. Therefore, drying the adhesive using the drying system according to some embodiments of the present application ensures that the water content of the adhesive meets the proper requirements, improving the connection stability between the active material layer and the current collector, and further improving the reliability of the battery.

[0009] According to some embodiments of the present application, the drying system further includes a control device connected to the first water content sensor and the first condensing mechanism, the control device receiving the water content signal and detecting whether the water content P of the gas discharged by the first condensing mechanism is P≦10 mg / m 3is used to control the power of the first condensing mechanism based on the water content signal so as to satisfy:

[0010] In the above solution, a control device can be installed to automatically control the power of the first condensing mechanism according to the water content signal, and the water content P of the gas discharged by the first condensing mechanism is P≦10 mg / m 3 and the material is dried in the drying chamber by gas with a relatively low water content, which improves the quality of the material and allows the battery to have a relatively high reliability.

[0011] According to some embodiments of the present application, the blowing flow rate of the blowing device is M1, and the blowing flow rate is 10000 m 3 / h≦M1≦60000m 3 Meet / h.

[0012] In some embodiments of the above solution, if the air flow rate of the blower is too low, the drying effect of the material will be poor, and if the air flow rate of the blower is too high, the energy required for blowing will be large, which will increase the cost. Therefore, in some embodiments, the air flow rate M1 of the blower is set to 10,000 m 3 / h to 60,000m 3 / h, on the one hand, it can improve the drying effect on the material, improve the quality of the material, and further improve the reliability of the battery, and on the other hand, it can effectively control the cost.

[0013] According to some embodiments of the present application, the air blowing device further includes a first filter and a second filter, wherein the first filter is located upstream of the first condensing mechanism along the air blowing direction, and the second filter is located downstream of the first heating mechanism and between the air inlet of the drying chamber and the first heating mechanism.

[0014] In the above solution, by installing a first filter upstream of the first condensing mechanism, impurities in the gas can be effectively filtered, reducing the impact of the impurities in the gas on the first condensing mechanism and the first heating mechanism, and improving the service life of the first condensing mechanism and the first heating mechanism. By installing a second filter between the drying chamber and the first heating mechanism, impurities in the gas can be further reduced, reducing the impact of the impurities on the materials, resulting in relatively high quality materials and relatively high quality batteries.

[0015] According to some embodiments of the present application, the drying system further includes an air supply device installed between the drying chamber and the collecting device for supplying air to the collecting device.

[0016] In the above solution, a wind supply device is installed in the collection device to supply air, and the material is dried again using the gas supplied from the wind supply device, so that the water content of the material meets the appropriate requirements, the quality of the material is improved, and the battery has relatively high reliability.

[0017] According to some embodiments of the present application, the supply air flow rate of the air supply device is M2, and the air flow rate is 5000 m 3 / h≦M2≦20000m 3 Meet / h.

[0018] In the above solution, in some embodiments, if the air supply flow rate of the air supply device is too small, the drying effect of the material will be poor, and if the air supply flow rate of the air supply device is too large, the energy required for air supply will be large and the cost will be high. Therefore, in some embodiments, the air supply flow rate M2 of the air supply device is set to 5000 m 3 / h to 20000m 3 / h, on the one hand, it can improve the drying effect on the material, improve the quality of the material, and further improve the reliability of the battery, and on the other hand, it can effectively control the cost.

[0019] According to some embodiments of the present application, the air supply device includes a second heating mechanism for heating the gas supplied to the collection device.

[0020] In the above solution, by installing a second heating mechanism, a gas with a certain temperature can dry the material in the collection device, which can improve the drying effect on the material, improve the quality of the material, and further improve the reliability of the battery.

[0021] According to some embodiments of the present application, the drying system further includes a first temperature sensor, the first temperature sensor being installed in the drying chamber and being used to detect a temperature inside the drying chamber and generate a temperature signal.

[0022] During drying of materials, the temperature should not be too high or too low, as too high a temperature may affect the properties of the material, such as causing the material to adhere or become larger, while too low a temperature may result in poor drying. Therefore, in the above solution, a first temperature sensor is installed to detect the current temperature inside the drying chamber and generate a temperature signal, thereby realizing timely knowledge of the current temperature of the material, and adjusting the power of the second heating mechanism as required, thereby avoiding the temperature being too high or too low, ensuring a relatively good drying effect for the material and further improving the reliability of the battery.

[0023] According to some embodiments of the present application, the drying system further includes a control device connected to the first temperature sensor and the second heating mechanism, and the control device is used to receive the temperature signal and control power of the second heating mechanism based on the temperature signal so that a heating temperature T of the gas by the second heating mechanism satisfies 40°C≦T≦60°C.

[0024] In the above solution, by installing a control device, the power of the second heating mechanism can be automatically controlled based on the temperature signal, so that the heating temperature T of the gas by the second heating mechanism satisfies 40°C≦T≦60°C, and the material can be dried within an appropriate temperature range.

[0025] According to some embodiments of the present application, the wind supply device includes a second condensation mechanism, and along the wind supply direction of the wind supply device, the second condensation mechanism is upstream of the second heating mechanism, and the second condensation mechanism is used to reduce the water content of the gas supplied to the collection device.

[0026] In the above solution, by installing a second condensation mechanism, the water content of the gas supplied to the collection device is reduced and the drying effect on the material is improved, so that the material has relatively high quality and the battery has relatively high reliability.

[0027] According to some embodiments of the present application, the air supply device further includes a third filter and a fourth filter, wherein the third filter is located upstream of the second condensing mechanism along the air supply direction, and the fourth filter is located downstream of the second heating mechanism and between the collecting device and the second heating mechanism.

[0028] In the above solution, by installing a third filter upstream of the second condensing mechanism, impurities in the gas can be effectively filtered, reducing the impact of the impurities in the gas on the second condensing mechanism and the second heating mechanism, and improving the service life of the second condensing mechanism and the second heating mechanism. By installing a fourth filter between the collecting device and the second heating mechanism, impurities in the gas can be further reduced, reducing the impact of the impurities on the material, resulting in a relatively high quality material and a relatively high quality battery.

[0029] According to some embodiments of the present application, the drying system further includes a material conveying device connected to a material inlet of the drying chamber to provide the material to be dried to the drying chamber.

[0030] In the above solution, the drying system is automated by installing a material conveying device that supplies materials to the drying chamber, which on the one hand can reduce labor costs and on the other hand can improve drying efficiency.

[0031] According to some embodiments of the present application, a nozzle is installed in the drying chamber, the nozzle being connected to the material inlet of the drying chamber.

[0032] In the above method, after the material enters the drying chamber through the material inlet, it can be atomized by the action of the nozzle, which increases the contact area with the high-temperature gas and improves the drying efficiency.

[0033] According to some embodiments of the present application, the collection device includes a cyclone collector and / or a cloth bag collector.

[0034] In the above solution, the collecting device includes a cyclone collector and / or a cloth bag collector, which can effectively separate the gas and the material, and improve the material collecting efficiency.

[0035] The above description is merely an outline of the technical solution of the present application, and in order to allow the technical means of the present application to be more clearly understood, and to be implemented in accordance with the contents of the specification, and to make the above and other objectives, features and advantages of the present application more clearly comprehensible, the following particularly cites specific embodiments of the present application to describe them. [Brief explanation of the drawings]

[0036] In order to more clearly explain the technical solutions of the embodiments of the present application, the following briefly introduces the drawings that need to be used in the embodiments. It should be understood that the following drawings only illustrate some embodiments of the present application, and should not be considered as limiting the scope. Those skilled in the art can also derive other related drawings based on these drawings without exerting any creative efforts. [Figure 1]FIG. 1 is a schematic diagram of a drying system according to some embodiments of the present application. [Figure 2] FIG. 1 is a schematic diagram of a blower device according to some embodiments of the present application. [Figure 3] FIG. 1 is a schematic diagram of a wind supplementation device according to some embodiments of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0037] In order to clarify the objectives, technical solutions and advantages of the embodiments of the present application, the following will clearly describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, but it should be understood that the described embodiments are only some of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without any creative efforts fall within the scope of protection of the present application.

[0038] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by those skilled in the art of this application, and the terms used in the specification of this application are only for describing specific embodiments and are not intended to limit this application. The terms "comprise" and "have" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover a non-exclusive "comprise." The terms "first," "second," etc. in the specification and claims of this application or the above-mentioned drawings are not intended to describe a particular order or a hierarchical relationship, but are intended to distinguish different objects.

[0039] An "embodiment" referred to in this application means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of this phrase in various places in the specification do not necessarily all refer to the same embodiment, nor are they mutually exclusive, separate, or alternative embodiments of other embodiments.

[0040] In the description of this application, it should be explained that unless otherwise clearly defined or limited, the terms "attached," "connected," "coupled," and "attached" should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, or an integral connection, a direct connection, an indirect connection via an intermediate medium, or internal communication between two elements. Those skilled in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

[0041] The term "and / or" in this application merely describes the relationship between related objects and indicates that three relationships may exist, for example, A and / or B may represent three cases: A, a combination of A and B, and B. Also, the character " / " in this application generally indicates that the related objects before and after are in an "or" relationship.

[0042] In the embodiments of the present application, the same reference numerals represent the same elements, and for the sake of brevity, detailed descriptions of the same elements will be omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various elements in the embodiments of the present application shown in the drawings, and the overall thickness, length, width, and other dimensions of the integrated device, are illustrative only and should not be construed as any limitation on the present application.

[0043] In this application, "plurality" refers to two or more (including two).

[0044] In the present application, the battery may include a lithium ion secondary battery, a lithium ion primary battery, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, or a magnesium ion battery, etc., and the examples of the present application are not limited thereto.

[0045] The core component of a battery that enables repeated charging and discharging is the electrode assembly in the battery cell. The electrode assembly includes plates and a separator, and the plates include a positive electrode plate and a negative electrode plate. The separator is typically installed between the positive electrode plate and the negative electrode plate to insulate them from each other. The separator may be made of materials such as PP (polypropylene) or PE (polyethylene). A battery cell operates primarily through the movement of metal ions between the positive electrode plate and the negative electrode plate. Here, the plates include a current collector and an active material layer. The current collector has a coated area along the width of the plate where the active material layer is coated and an uncoated area where the active material layer is not coated. Tabs are cut out from the uncoated current collector to enable charging and discharging of the electrode assembly. The current collector may be a metal foil, such as copper foil or aluminum foil. In some embodiments, the active material layer is attached to the surface of the current collector via an adhesive. During the manufacturing of the adhesive, the adhesive is dried by a drying system.

[0046] In the development of battery technology, how to improve battery reliability is one of the technical problems that needs to be solved urgently. In batteries, the active material layer is attached to the surface of the current collector by an adhesive, so the quality of the adhesive affects the battery reliability, and a factor that affects the quality of the adhesive is the water content of the adhesive. However, current drying systems have poor drying effects, and after drying in the drying system, the water content of the adhesive is too high, i.e., it does not meet the appropriate requirements, which affects the adhesion stability between the active material layer and the current collector and reduces the reliability of the battery.

[0047] In view of this, in order to solve the problem of poor drying effect of the drying system and low battery reliability due to excessively high water content of the adhesive, some embodiments of the present application design a drying system, which includes a drying chamber, a collecting device, and a blowing device. The drying chamber is used to store the adhesive waiting to be dried. The collecting device is connected to the material outlet of the drying chamber. The blowing device is connected to the suction port of the drying chamber and is used to blow air into the drying chamber. Here, the blowing device includes a first condensing mechanism and a first heating mechanism, and the first condensing mechanism is located along the blowing direction of the blowing device and upstream of the first heating mechanism. The first condensing mechanism is used to reduce the water content of the gas entering the drying chamber, and the first heating mechanism is used to heat the gas entering the drying chamber.

[0048] In the above solution, the water content of the gas is first reduced by the first condensation mechanism, and then the dried gas is heated by the first heating mechanism. The high-temperature gas with a relatively low water content effectively dries the adhesive in the drying chamber, effectively reducing the water content of the adhesive and improving the quality of the adhesive, thereby improving the adhesion stability between the active material layer and the current collector and further increasing the reliability of the battery.

[0049] The materials to be dried by the drying system disclosed in the embodiments of the present application include, but are not limited to, adhesives required for batteries, and may also be non-battery materials. The materials to be dried by the drying system according to the embodiments of the present application will be described using adhesives required for batteries as an example.

[0050] According to some embodiments of the present application, referring to Figures 1 and 2, Figure 1 is a schematic diagram of a drying system 100 in some embodiments of the present application, and Figure 2 is a schematic diagram of a blower device 30 in some embodiments of the present application.

[0051] The drying system 100 includes a drying chamber 10, a collection device 20, and a blower device 30. The drying chamber 10 is used to store materials to be dried. The collection device 20 is connected to a material outlet of the drying chamber 10. The blower device 30 is connected to an intake port of the drying chamber 10 and is used to blow air into the drying chamber 10. The blower device 30 includes a first condensing mechanism 31, a first heating mechanism 32, and a first water content sensor 34. Along the blowing direction x of the blower device 30, the first condensing mechanism 31 is located upstream of the first heating mechanism 32. The first condensing mechanism 31 is used to reduce the water content of the gas entering the drying chamber 10, and the first heating mechanism 32 is used to heat the gas entering the drying chamber 10. The first water content sensor 34 is installed between the first condensing mechanism 31 and the first heating mechanism 32 and is used to detect the water content of the gas discharged from the first condensing mechanism 31 and generate a water content signal.

[0052] The drying chamber 10 is a component that accommodates materials to be dried, and generally has a material inlet, a material outlet, and a suction port. The material is introduced into the drying chamber 10 through the material inlet, and hot gas enters the drying chamber 10 through the suction port and acts on the material. After being dried by the hot gas, the material is discharged from the material outlet. In some embodiments, the drying chamber 10 may be referred to as a main tower by those skilled in the art.

[0053] The collector 20 is a component connected to the material outlet of the drying chamber 10 and is used to collect the material after drying. In some embodiments, the gas after interacting with the material in the drying chamber 10 may be discharged from the material outlet and enter the collector 20, which can separate the material and the gas. In some embodiments, the collector 20 may be referred to as a side column by those skilled in the art.

[0054] The blower 30 is a member connected to the intake port of the drying chamber 10, and can blow gas into the drying chamber 10. In some embodiments, referring to Fig. 2, the blower 30 may further include a first fan 33 and a first pipe 37, and the first fan 33, the first condensing mechanism 31, and the first heating mechanism 32 are connected by the first pipe 37, and the first fan 33 can draw outside air into the drying chamber 10, and the gas enters the drying chamber 10 after passing through the first condensing mechanism 31 and the first heating mechanism 32, and interacts with the material in the drying chamber 10 to dry the material.

[0055] "Along the air blowing direction x of the air blowing device 30, the first condensation mechanism 31 is upstream of the first heating mechanism 32" may also mean that the gas sent into the drying chamber 10 by the air blowing device 30 first undergoes the action of the first condensation mechanism 31 and then the action of the first heating mechanism 32.

[0056] The function of the first condensing mechanism 31 may be to condense the gas and reduce the water content of the gas so that the gas has a relatively low water content before being subjected to the action of the first heating mechanism 32 and entering the drying chamber 10. In some embodiments, the first condensing mechanism 31 may be a device capable of reducing the water content of the gas, such as a cold dryer or a dehumidifier.

[0057] The function of the first heating mechanism 32 may be to heat the gas after it has been condensed by the first condensing mechanism 31 so that the gas with a relatively low water content enters the drying chamber 10 at a constant temperature to dry the material. In some embodiments, the first heating mechanism 32 may be an electric heating mechanism, a natural gas heating mechanism, or the like.

[0058] In some embodiments, the water content of the material after drying by drying system 100 may be 2% or less, or 5% or less, or 10% or less, depending on specific requirements, where the water content of the material is a mass percentage.

[0059] In some embodiments, the first water content sensor 34 is a component installed between the first condensing mechanism 31 and the first heating mechanism 32, and can detect the water content of the gas discharged from the first condensing mechanism 31 and generate a water content signal. In some embodiments, the water content signal can be displayed to an operator by a man-machine interaction module, for example, a display screen.

[0060] In the above solution, the blower device 30 includes a first condensing mechanism 31 and a first heating mechanism 32. The first condensing mechanism 31 condenses the gas to reduce its water content, and the first heating mechanism 32 heats the condensed gas, so that the high-temperature gas with a low water content enters the drying chamber 10 and effectively dries the material. On the one hand, the installation of the first condensing mechanism 31 meets the drying requirements of the material, allows the material to have a relatively low water content, and improves the quality of the material. On the other hand, improving the drying effect of the material by reducing the water content of the gas entering the drying chamber 10 effectively reduces the risk of material quality being reduced due to changes in the physical characteristics of the material caused by high temperatures, compared to the solution of increasing the drying temperature. At the same time, by installing a first water content sensor 34 between the first condensing mechanism 31 and the first heating mechanism 32, the water content of the gas discharged by the first condensing mechanism 31 can be detected and a water content signal can be generated, thereby allowing the water content of the gas sent to the drying chamber 10 by the blower device 30 to be known. Furthermore, an operator or a control device 40 can adjust the power of the first condensing mechanism 31 based on the water content signal. On the one hand, if the water content is too high, i.e., does not meet the demand, the power of the first condensing mechanism 31 can be increased so that the water content meets the demand; on the other hand, if the water content is too low, the power of the first condensing mechanism 31 can be reduced, thereby saving energy and controlling costs. In some embodiments, the material may be an adhesive applied to a battery, and the adhesive may be a material for bonding an active material layer and a current collector. Therefore, by drying the adhesive using the drying system 100 according to some embodiments of the present application, the water content of the adhesive can meet the appropriate requirements, i.e., the adhesive has relatively good quality, improves the connection stability between the active material layer and the current collector, and further, the battery can have relatively high reliability.

[0061] According to some embodiments of the present application, referring to FIG. 1 , the drying system 100 further includes a control device 40, the control device 40 being connected to the first water content sensor 34 and the first condensing mechanism 31, the control device 40 receiving the water content signal and detecting that the water content P of the gas discharged from the first condensing mechanism 31 is P≦10 mg / m 3 is used to control the power of the first condensing mechanism 31 based on the water content signal so as to satisfy:

[0062] In some embodiments, the control device 40 may be a programmable logic controller (PLC), which can store instructions for performing operations such as logical operations, sequence control, timing, counting, and arithmetic operations. The control device 40 is connected to the first water content sensor 34 and the first condensing mechanism 31 to receive a water content signal, and can control and adjust the power of the first condensing mechanism 31 based on the water content signal. By adjusting the power of the first condensing mechanism 31, the water content of the gas discharged from the first condensing mechanism 31 can be adjusted. By being controlled by the control device 40, the water content P of the gas discharged from the first condensing mechanism 31 can be adjusted to 10 mg / m or less. 3 That is, the gas discharged from the first condensing mechanism 31 is relatively dry and meets the appropriate requirements for drying the material.

[0063] In the above solution, the control device 40 can be installed to automatically control the power of the first condensing mechanism 31 according to the water content signal, and the water content P of the gas discharged by the first condensing mechanism 31 is P≦10 mg / m 3 and the material is dried in the drying chamber 10 by a gas with a relatively low water content, so that the material has a relatively good drying effect, improves the quality of the material, and further allows the battery to have a relatively high reliability.

[0064] In some other embodiments, the control device 40 may not be installed, and an operator may manually adjust the power of the first condensing mechanism 31 based on the water content signal displayed on the man-machine interaction module (e.g., the first condensing mechanism 31 has multiple positions, and the power is changed by switching between the positions).

[0065] According to some embodiments of the present application, the blowing flow rate of the blowing device 30 is M1, and the blowing flow rate is 10,000 m 3 / h≦M1≦60000m 3 Meet / h.

[0066] In some embodiments, the air flow rate M1 may be the flow rate of gas sent by the air blower 30 into the drying chamber 10. In some embodiments, the magnitude of the air flow rate M1 may be adjusted by changing the specifications of the first fan 33, or by adjusting the power of the first fan 33.

[0067] In some embodiments, when processing 500 kg to 3000 kg of adhesive that is waiting to dry, the air flow rate M1 of the air blower 30 is 10000 m 3 / h≦M1≦60000m 3 / h, that is, M1 is 10000m 3 / h, 15000m 3 / h, 20,000m 3 / h, 25,000m 3 / h···55000m 3 / h or 60,000m 3 / h may also be used.

[0068] In some other embodiments, the blowing flow rate of the blower 30 is M1, and the blowing flow rate is 20,000 m 3 / h≦M1≦50000m 3 In some other embodiments, the blowing flow rate of the blower 30 is M1, and the blowing flow rate of the blower 30 is 30,000 m 3 / h≦M1≦40000m 3 / h can be further satisfied.

[0069] In the above solution, in some embodiments, if the air flow rate of the blower 30 is too small, the drying effect of the material will be poor, and if the air flow rate of the blower 30 is too large, the energy required for blowing will be large, resulting in high costs. Therefore, in some embodiments, the air flow rate M1 of the blower 30 is set to 10,000 m 3 / h to 60,000m 3 / h, on the one hand, it is possible to improve the drying effect on the material, improve the quality of the material, and further improve the reliability of the battery. On the other hand, it is possible to limit the air flow rate M1 to 60,000 m 3 / h or less, the energy consumption of the blower 30 can be controlled, and costs can be effectively controlled.

[0070] In some other embodiments, the specific magnitude of the blowing air flow rate M1 is not limited, and it may be 10,000 m 3 / h may be less than 60,000m 3 / h, as long as it meets the appropriate requirements.

[0071] 2 , the air blowing device 30 further includes a first filter 35 and a second filter 36. Along the air blowing direction x, the first filter 35 is located upstream of the first condensing mechanism 31, and the second filter 36 is located downstream of the first heating mechanism 32 and between the air inlet of the drying chamber 10 and the first heating mechanism 32.

[0072] In some embodiments, the first filter 35 may be a low- or medium-efficiency filter. In some embodiments, the first filter 35 may be made of synthetic fiber filter material and can filter large particulate dust impurities in the gas. The second filter 36 may be a high-efficiency filter. In some embodiments, the second filter 36 may use ultrafine glass fiber paper as a filter material. The second filter 36 can filter small particulate dust or suspended matter. The filtering effect of the second filter 36 is stronger than that of the first filter 35 so that it can filter smaller impurities or contaminants.

[0073] In some embodiments, the gas is first filtered by a first filter 35 before passing through the first condensing mechanism 31, reducing the risk that the first condensing mechanism 31 is affected by impurities or contaminants in the gas and improving the service life of the first condensing mechanism 31. In some embodiments, the gas is filtered by a second filtering mechanism after being heated by the first heating mechanism 32 and before entering the drying chamber 10, reducing the risk that impurities or contaminants in the gas affect the drying of the material in the drying chamber 10, improving the drying effect of the material and improving the quality of the material.

[0074] In the above solution, by installing the first filter 35 upstream of the first condensation mechanism 31, impurities in the gas can be effectively filtered, the impact of the impurities in the gas on the first condensation mechanism 31 and the first heating mechanism 32 can be reduced, and the service life of the first condensation mechanism 31 and the first heating mechanism 32 can be improved. By installing the second filter 36 between the drying chamber 10 and the first heating mechanism 32, the impurities in the gas can be further reduced, and the impact of the impurities on the materials can be reduced, so that the materials can have relatively high quality and the batteries can have relatively high quality.

[0075] According to some embodiments of the present application, reference is made to FIGS. 1 and 3, where FIG. 3 is a schematic diagram of a wind supplementation device 50 according to some embodiments of the present application.

[0076] The drying system 100 further includes an air supply device 50 installed between the drying chamber 10 and the collection device 20 for supplying air to the collection device 20 .

[0077] The air supply device 50 is an equipment for supplying air to the collection device 20, which provides gas to the material that has entered the collection device 20 so that the material can be dried by the action of the gas inside the collection device 20.

[0078] In some embodiments, the material outlet of the drying chamber 10 and the material inlet of the collection device 20 are connected by a second pipe 11, and the second pipe 11 is provided with a branch pipe connected to the air supply device 50. The air supply device 50 operates to supply air to the collection device 20 through the second pipe 11. The air supply device 50 is installed between the drying chamber 10 and the collection device 20, supplies air to the collection device 20, and can reduce the risk of air pressure disturbance within the collection device 20.

[0079] 3, the wind supply device 50 may include a second fan 55, which is connected to the collection device 20 by a third pipe 56. The second fan 55 may be a Roots fan.

[0080] In the above solution, a ventilation device 50 is installed to supply air to the collection device 20, and the gas supplied from the ventilation device 50 is used to dry the material again, so that the water content of the material meets the appropriate requirements, the quality of the material is improved, and the battery has relatively high reliability.

[0081] In some other embodiments, the air supply device 50 may be directly connected to the collection device 20 so as to supply air directly to the collection device 20 .

[0082] According to some embodiments of the present application, the supply air flow rate of the air supply device 50 is M2, and the air flow rate is 5000 m 3 / h≦M2≦20000m 3 Meet / h.

[0083] In some embodiments, the supply air flow rate M2 may be the flow rate of gas sent by the air supply device 50 into the collection device 20. In some embodiments, the magnitude of the supply air flow rate M2 may be adjusted by changing the specifications of the second fan 55, or by adjusting the power of the second fan 55.

[0084] In some embodiments, when processing 500 kg to 3000 kg of adhesive that is waiting to dry, the air flow rate M2 is 5000 m 3 / h≦M2≦20000m 3 / h, that is, M2 is 5000m 3 / h, 6000m 3 / h, 7000m 3 / h, 8000m 3 / h···19000m 3 / h or 20,000m 3 / h may also be used.

[0085] In some other embodiments, the supply air flow rate M2 of the air supply device 50 is 6000 m 3 / h≦M2≦15000m 3 In some other embodiments, the air supply flow rate M2 of the air supply device 50 can be 8000 m 3 / h≦M2≦10000m 3 / h can be further satisfied.

[0086] In the above solution, in some embodiments, if the air supply flow rate of the air supply device 50 is too small, the drying effect of the material will be poor, and if the air supply flow rate of the air supply device 50 is too large, the energy required for air supply will be large and the cost will be high. Therefore, in some embodiments, the air supply flow rate M2 of the air supply device 50 is set to 5000 m 3 / h to 20000m 3 / h, on the one hand, it can improve the drying effect on the material, improve the quality of the material, and further improve the reliability of the battery. On the other hand, it can reduce the supply air flow rate M2 to 20,000 m 3 / h or less, the energy consumption of the wind supply device 50 can be controlled, and costs can be effectively controlled.

[0087] According to some embodiments of the present application, the air supply device 50 includes a second heating mechanism 51 for heating the gas supplied to the collection device 20 .

[0088] The second heating mechanism 51 may be a mechanism that heats the gas supplied to the collector 20 so that the gas enters the collector 20 at a constant temperature and dries the material. In some embodiments, the second heating mechanism 51 may be an electric heating mechanism, a natural gas heating mechanism, or the like.

[0089] In the above solution, by installing the second heating mechanism 51, a gas with a certain temperature can dry the material in the collection device 20, which can improve the drying effect on the material, improve the quality of the material, and further improve the reliability of the battery.

[0090] According to some embodiments of the present application, the drying system 100 further includes a first temperature sensor (not shown), which is installed within the drying chamber 10 and is used to detect the temperature within the drying chamber 10 and generate a temperature signal.

[0091] The first temperature sensor is a component capable of detecting temperature. In some embodiments, the first temperature sensor may be installed inside the drying chamber 10, for example, in the middle of the drying chamber 10 or at the material outlet of the drying chamber 10.

[0092] During drying of the material, the temperature should not be too high or too low. If the temperature is too high, there is a risk of affecting the properties of the material, such as the material being adhered or enlarged, and if the temperature is too low, the drying effect will be poor. Therefore, in the above solution, a first temperature sensor is installed to detect the current temperature in the drying chamber 10 and generate a temperature signal, thereby timely knowing the current temperature of the material and adjusting the power of the second heating mechanism 51 according to the appropriate requirements, thereby avoiding the temperature being too high or too low, so that the material has a relatively good drying effect and further improving the reliability of the battery.

[0093] According to some embodiments of the present application, as shown in FIG. 1 , the drying system 100 further includes a control device 40, which is connected to the first temperature sensor and the second heating mechanism 51, and the control device 40 is used to receive a temperature signal and control the power of the second heating mechanism 51 based on the temperature signal so that the heating temperature T of the gas by the second heating mechanism 51 satisfies 40°C≦T≦60°C.

[0094] In some embodiments, the control device 40 may be a programmable logic controller (PLC), which may store instructions for performing operations such as logic operations, sequence control, timing, counting, and arithmetic operations. The control device 40 is connected to the first temperature sensor and the second heating mechanism 51, and controls the power of the second heating mechanism 51 according to the received temperature signal. Under the control of the control module, the heating temperature T of the gas by the second heating mechanism 51 may be 40°C, 41°C, 42°C, 57°C, 58°C, 59°C, or 60°C.

[0095] In some embodiments, the control device 40 receives a temperature signal and controls the power of the second heating mechanism 51 based on the temperature signal so that the heating temperature T of the gas by the second heating mechanism 51 satisfies 30°C≦T≦60°C or 40°C≦T≦55°C.

[0096] In the above solution, if the heating temperature of the gas by the second heating mechanism 51 is too low, there is a problem that the drying effect is poor and condensation occurs, causing the material to adhere to the pipe, and if it is too high, there is a problem that the physical properties of the material are affected. Therefore, by installing a control device 40, the power of the second heating mechanism 51 can be automatically controlled based on the temperature signal, and the heating temperature T of the gas by the second heating mechanism 51 can be made to satisfy 40°C≦T≦60°C, and the material can be dried within the appropriate temperature range.

[0097] According to some embodiments of the present application, as shown in FIG. 3 , the wind supply device 50 includes a second condensation mechanism 52, which is located upstream of the second heating mechanism 51 along the wind supply direction y of the wind supply device 50, and the second condensation mechanism 52 is used to reduce the water content of the gas supplied to the collection device 20.

[0098] The function of the second condensing mechanism 52 may be to condense the gas and reduce the water content of the gas so that the gas has a relatively low water content before passing through the second heating mechanism 51 and into the collection device 20. In some embodiments, the second condensing mechanism 52 may be a device capable of reducing the water content of the gas, such as a cold dryer or a dehumidifier.

[0099] In the above solution, the installation of the second condensation mechanism 52 reduces the water content of the gas supplied to the collection device 20, improving the drying effect on the material, resulting in a material with higher quality and a battery with higher reliability.

[0100] According to some embodiments of the present application, as shown in Figure 3, the air supply device 50 further includes a third filter 53 and a fourth filter 54. Along the air supply direction y, the third filter 53 is located upstream of the second condensing mechanism 52, and the fourth filter 54 is located downstream of the second heating mechanism 51 and between the collecting device 20 and the second heating mechanism 51.

[0101] In some embodiments, the third filter 53 may be a low- or medium-efficiency filter. In some embodiments, the third filter 53 may be made of synthetic fiber filter material and can filter large particulate dust impurities in the gas. The fourth filter 54 may be a high-efficiency filter. In some embodiments, the fourth filter 54 may use ultrafine glass fiber paper as a filter material. The fourth filter 54 can filter small particulate dust or suspended matter. The filtering effect of the fourth filter 54 is stronger than that of the third filter 53 so that it can filter smaller impurities or contaminants.

[0102] In some embodiments, the gas is first filtered by a third filter 53 before passing through the second condensing mechanism 52, to reduce the risk that the second condensing mechanism 52 is affected by impurities or contaminants in the gas, and to improve the service life of the second condensing mechanism 52. In some embodiments, the gas is filtered by a fourth filter 54 after being heated by the second heating mechanism 51 and before entering the collector 20, to reduce the risk that impurities or contaminants in the gas affect the drying of the material in the collector 20, to improve the drying effect of the material, and to improve the quality of the material.

[0103] In the above solution, by installing a third filter 53 upstream of the second condensation mechanism 52, impurities in the gas can be effectively filtered, the impact of the impurities in the gas on the second condensation mechanism 52 and the second heating mechanism 51 can be reduced, and the service life of the second condensation mechanism 52 and the second heating mechanism 51 can be improved. By installing a fourth filter 54 between the collection device 20 and the second heating mechanism 51, the impurities in the gas can be further reduced, and the impact of the impurities on the materials can be reduced, so that the materials can have relatively high quality and the batteries can have relatively high quality.

[0104] According to some embodiments of the present application, referring to FIG. 1, the drying system 100 further includes a material conveying device 60 connected to the material inlet of the drying chamber 10 to provide the material to be dried to the drying chamber 10.

[0105] The material conveying device 60 may be a member for conveying material to the drying chamber 10, and in some embodiments, the material conveying device 60 may include a fourth pipe 61 and a conveying pump 62, where the material is conveyed from the fourth pipe 61 to the material inlet of the drying chamber 10, and the conveying pump 62 provides power for conveying the material. The fourth pipe 61 may be provided with a valve that allows or blocks the conveyance of the material.

[0106] In the above solution, the material conveying device 60 that supplies material to the drying chamber 10 is installed to realize automation of the drying system 100, which on the one hand can reduce labor costs and on the other hand can improve drying efficiency.

[0107] According to some embodiments of the present application, referring to FIG. 1, a nozzle 70 is installed in the drying chamber 10, which is connected to the material inlet of the drying chamber 10.

[0108] The nozzle 70 is a member located inside the drying chamber 10 and connected to the material inlet of the drying chamber 10. The nozzle 70 may be an atomizing nozzle so that the material is sprayed in the form of a mist or small particles after passing through the nozzle 70.

[0109] In some embodiments, after passing through the nozzle 70, the material enters the drying chamber 10 in the form of a mist or small particles, and can be fully in contact with the gas having a low water content and a constant temperature provided by the blower 30.

[0110] In some embodiments, to improve the efficiency with which the material passes through the nozzle 70, the fourth pipe 61 is equipped with a high-pressure pipe 63, and high-pressure gas acts on the material, causing it to pass through the nozzle 70 at a relatively high velocity.

[0111] In the above method, the material enters the drying chamber 10 through the material inlet and is atomized through the nozzle 70, thereby increasing the contact area with the high-temperature gas and improving the drying efficiency.

[0112] According to some embodiments of the present application, the collection device 20 includes a cyclone collector 21 and / or a cloth bag collector 22 .

[0113] In some embodiments, the collector 20 may be a cyclone collector 21, or a cloth bag collector 22, or a cyclone collector 21 and a cloth bag collector 22 connected in series with each other.

[0114] In some embodiments, the cyclone collector 21 is referred to by those skilled in the art as a cyclone dust collector, which is a type of dust removal device. The gas containing the material rotates within the cyclone collector 21, centrifugal force separates the material from the airflow, traps it on the vessel wall, and gravity causes the material to fall into the collection chamber of the cyclone collector 21.

[0115] In some embodiments, the cloth bag collector 22 is referred to by those skilled in the art as a cloth bag dust collector, which is a type of dust removal device. The filter bag of the cloth bag collector 22 is made of woven filter cloth or non-woven felt, which uses the filtering effect of woven fiber fabric to filter the gas containing the material. After the gas containing the material enters the cloth bag collector 22, the material settles due to gravity and falls into the collection chamber of the cloth bag collector 22.

[0116] Referring to Figure 1, the material outlet of the drying chamber 10 is connected to a cyclone collector 21, which is connected to a cloth bag collector 22. An induced draft fan 23 is connected to the cloth bag collector 22, and the function of the induced draft fan 23 is to create a slight negative pressure inside the cloth bag collector 22 and the cyclone collector 21 to better collect the material.

[0117] In the above solution, the collecting device 20 includes a cyclone collector 21 and / or a cloth bag collector 22, which can effectively separate the gas and the material, and improve the material collecting efficiency.

[0118] 1 to 3, some embodiments of the present application provide a drying system 100, which includes a drying chamber 10, a collecting device 20, a blowing device 30, and a wind supplying device 50. In the drying system 100, two relatively important points for improving the drying effect of materials may be as follows: First, a first condensing mechanism 31 is installed to first condense the gas entering the drying chamber 10, thereby reducing the water content of the gas entering the drying chamber 10; Second, a wind supplying device 50 is installed between the drying chamber 10 and the collecting device 20, and dry gas flows into the collecting device 20 to reduce the water content of the material.

[0119] Referring to Figure 2, the blower device 30 includes a first filter 35, a first fan 33, a first condensing mechanism 31, a first heating mechanism 32, and a second filter 36, and the first filter 35, the first fan 33, the first condensing mechanism 31, the first heating mechanism 32, and the second filter 36 are connected by a first pipe 37, and the second filter 36 is connected to the intake port of the drying chamber 10.

[0120] Referring to FIG. 1, the material outlet of the drying chamber 10 is connected to a collection device 20 via a second pipe 11. The collection device 20 includes a cyclone collector 21 and a cloth bag collector 22 connected in series, and an induced draft fan 23 is connected to the cloth bag collector 22.

[0121] 3, the air supply device 50 includes a third filter 53, a second condensing mechanism 52, a second heating mechanism 51, a fourth filter 54, and a second fan 55. The third filter 53, the second condensing mechanism 52, the second heating mechanism 51, the fourth filter 54, and the second fan 55 are connected by a third pipe 56, and the second fan 55 is connected to the second pipe 11 to provide gas to the collection device 20.

[0122] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will appreciate that the present application can undergo various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

[0123] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will appreciate that the present application can undergo various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application. [Explanation of symbols]

[0124] 100 - drying system, 10 - drying chamber, 11 - second pipe, 20 - collecting device, 21 - cyclone collector, 22 - cloth bag collector, 23 - induced draft blower, 30 - blower, 31 - first condensing mechanism, 32 - first heating mechanism, 33 - first fan, 34 - first water content sensor, 35 - first filter, 36 - second filter, 37 - first pipe, 40 - control device, 50 - air supply device, 51 - second heating mechanism, 52 - second condensing mechanism, 53 - third filter, 54 - fourth filter, 55 - second fan, 56 - third pipe, 60 - material conveying device, 61 - fourth pipe, 62 - conveying pump, 63 - high-pressure pipe, 70 - nozzle, x - air blowing direction, y - air supply direction.

Claims

1. 1. A drying system comprising: a drying chamber for containing material awaiting drying; a collection device connected to the material outlet of the drying chamber; a blower connected to the suction port of the drying chamber for blowing air into the drying chamber; an air supply device installed between the drying chamber and the collecting device for supplying air to the collecting device; wherein the blower includes a first condensing mechanism, a first heating mechanism, and a first water content sensor, the first condensing mechanism being located upstream of the first heating mechanism along the blowing direction of the blower, the first condensing mechanism being used to reduce the water content of the gas entering the drying chamber, the first heating mechanism being used to heat the gas entering the drying chamber, the first water content sensor being installed between the first condensing mechanism and the first heating mechanism, and being used to detect the water content of the gas discharged by the first condensing mechanism and generate a water content signal; A drying system, wherein the air supply device includes a second heating mechanism for heating the gas supplied to the collection device, and the heating temperature T of the gas by the second heating mechanism is 40°C≦T≦60°C.

2. The drying system further includes a control device connected to the first water content sensor and the first condensing mechanism, the control device receiving the water content signal and determining whether the water content P of the gas discharged by the first condensing mechanism is P≦10 mg / m ３ 2. The drying system of claim 1, wherein the power of the first condensing mechanism is controlled based on the water content signal to satisfy:

3. The air flow rate of the blower is M1, and the air flow rate is 10,000 m ３ / h≦M1≦60000m ３ 10. The drying system of claim 1, wherein the drying system satisfies the following conditions:

4. the blower device further includes a first filter and a second filter; 2. The drying system according to claim 1, wherein, along the air blowing direction, the first filter is located upstream of the first condensing mechanism, and the second filter is located downstream of the first heating mechanism and between the air inlet of the drying chamber and the first heating mechanism.

5. The air supply flow rate of the air supply device is M2, and the air flow rate is 5000 m ３ / h≦M2≦20000m ３ 10. The drying system of claim 1, wherein the drying system satisfies the following conditions:

6. 2. The drying system of claim 1, further comprising a first temperature sensor, the first temperature sensor being installed in the drying chamber and used to detect a temperature within the drying chamber and generate a temperature signal.

7. 7. The drying system of claim 6, further comprising a control device connected to the first temperature sensor and the second heating mechanism, the control device being used to receive the temperature signal and control power of the second heating mechanism based on the temperature signal so that a heating temperature T of the gas by the second heating mechanism satisfies 40°C≦T≦60°C.

8. 2. The drying system of claim 1, wherein the air supply device includes a second condensing mechanism, the second condensing mechanism being located upstream of the second heating mechanism along the air supply direction of the air supply device, and the second condensing mechanism is used to reduce the water content of the gas supplied to the collection device.

9. The wind supply device further includes a third filter and a fourth filter, 9. The drying system of claim 8, wherein, along the air supply direction, the third filter is located upstream of the second condensing mechanism, and the fourth filter is located downstream of the second heating mechanism and between the collector and the second heating mechanism.

10. The drying system according to claim 1 , further comprising a material conveying device connected to a material inlet of the drying chamber to provide the material to be dried to the drying chamber.

11. The drying system of claim 10, wherein a nozzle is installed in the drying chamber and connected to a material inlet of the drying chamber.

12. 12. The drying system of claim 1, wherein the collection device comprises a cyclone collector and / or a cloth bag collector.

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