Drying device and drying system thereof

Abstract

The utility model discloses a drying device and a drying system thereof.The drying device comprises a drying oven body with a drying oven inner cavity, an air inlet is formed in the top of the drying oven body, and a bearing mechanism is arranged at the bottom of the drying oven inner cavity and used for bearing objects to be dried; a heating mechanism, a first air supply mechanism and an air exhaust mechanism are arranged in the inner cavity of the drying oven; the heating mechanism is arranged between the first air supply mechanism and the air inlet, and the air exhaust mechanism is arranged in the first air supply mechanism; the heating mechanism is used for heating air received by the air inlet and the first air supply mechanism; the first air supply mechanism is used for conveying the heated air to the surface of the to-be-dried object; the air exhaust mechanism is used for exhausting hot air carrying the solvent of the to-be-dried object out of the drying device, so that the air exhaust loop containing the solvent is located in a high-temperature area, the designed drying device does not generate the low-temperature condensation falling risk in the drying and air exhaust process, and the reliability of the drying device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of process equipment, and in particular to a drying device and a drying system thereof. Background Art

[0002] During the production process, most handicrafts or metal products (such as battery electrodes, etc.) need to be dried by hot air on the handicrafts or metal products coated with solvents, and the return air and the solvents carried in the return air need to be recovered.

[0003] At present, most handicrafts or metal products are dried by using multiple ovens for overall exhaust treatment. However, the overall exhaust method of multiple ovens makes the recovery and drying pipelines longer, which in turn causes the risk of low-temperature condensation of the solvent during the long journey. Utility Model Content

[0004] In view of the above problems, the present application provides a drying device and a drying system thereof, which can solve the problem that the current overall exhaust method of multiple ovens makes the recovery and drying pipelines longer, and thus makes the solvent have the risk of low-temperature condensation during the long distance.

[0005] In a first aspect, the present application provides a drying device, comprising: an oven main body having an oven inner cavity, an air inlet being provided at the top of the oven main body, and a carrying mechanism being provided at the bottom of the oven inner cavity for carrying an object to be dried; a heating mechanism, a first air supply mechanism and an exhaust mechanism are provided in the oven inner cavity; the heating mechanism is provided between the first air supply mechanism and the air inlet, and the exhaust mechanism is provided inside the first air supply mechanism; the heating mechanism is used to heat the air received by the air inlet and the first air supply mechanism; the first air supply mechanism is used to transport the heated air to the surface of the object to be dried; and the exhaust mechanism is used to discharge the hot air carrying the solvent of the object to be dried out of the drying device.

[0006] In the technical solution of the embodiment of the present application, during the drying process of the object to be dried, the exhaust mechanism is arranged in the first air supply mechanism, and the first air supply mechanism and the exhaust mechanism therein are heated by the heating mechanism, so that on the basis of the heating device heating and heating the exhaust mechanism, the first air supply mechanism can keep the exhaust mechanism warm, so that the exhaust circuit containing the solvent is in a higher temperature area, thereby ensuring that the designed drying device will not have the risk of low-temperature condensation during the drying exhaust process, thereby improving the reliability of the drying device.

[0007] In some embodiments, the exhaust mechanism includes multiple exhaust vents and an exhaust connecting pipeline; wherein each exhaust vent is connected to the exhaust connecting pipeline; the exhaust connecting pipeline is arranged in the first air supply mechanism, and the multiple exhaust vents are located outside the first air supply mechanism and face the object to be dried.

[0008] In the above implementation, the present solution sets the exhaust air connection pipeline in the first air supply mechanism, and the exhaust air connection pipeline can be heated by the heating mechanism and kept warm by the first air supply mechanism at the same time, so that the exhaust air circuit containing the solvent is in a higher temperature area, and thus there is no risk of low-temperature condensation during the drying exhaust process. In addition, the present solution designs multiple exhaust air vents to accelerate the discharge of hot air carrying solvent in the drying device, and improve the discharge efficiency of hot air carrying solvent.

[0009] In some embodiments, the first air supply mechanism includes a plurality of spoilers, wherein each spoiler is provided with a plurality of spoiler holes; the plurality of spoilers are used to disturb the flow field of the heated air so as to transport the heated air to the surface of the object to be dried.

[0010] In the above-mentioned implementation mode, the present solution disturbs the flow field of the heated wind through a plurality of spoilers, thereby uniformly delivering the heated wind to the surface of the object to be dried, so that the object to be dried can be dried by uniform hot air, thereby improving the drying effect.

[0011] In some embodiments, the diameter of the spoiler holes formed on the plurality of spoilers increases as the distance between the spoiler and the air inlet increases.

[0012] In the above implementation mode, the aperture of the spoiler that is farther away from the air inlet is larger, thereby increasing the wind pressure exerted by the spoiler that is farther away from the air inlet, so that the wind force received by the spoiler that is farther away and the spoiler that is closer to the air inlet are basically the same, thereby achieving the effect of evenly dispersing the incoming air.

[0013] In some embodiments, a second air supply mechanism is further provided in the inner cavity of the oven; the second air supply mechanism is provided between the heating mechanism and the air inlet to disperse and transmit the air received by the air inlet to the heating mechanism.

[0014] In the above embodiment, the second air supply mechanism is arranged between the heating mechanism and the air inlet, so that the incoming air is evenly dispersed before entering the heating mechanism, thereby making the subsequent wind acting on the object to be dried more even.

[0015] In some embodiments, there are multiple air inlets on the top of the oven body.

[0016] In the above embodiment, the present solution provides a plurality of air inlets at different positions on the top of the oven body so that the incoming air can be evenly dispersed.

[0017] In some embodiments, the supporting mechanism includes a plurality of supporting members arranged at intervals; wherein an air outlet is provided in the interval area between the plurality of supporting members.

[0018] In the above-mentioned implementation manner, the present solution forms a bearing mechanism by using a plurality of bearing members arranged at intervals, thereby making the bearing of the object to be dried more stable.

[0019] In some embodiments, the object to be dried includes a pole piece.

[0020] In a second aspect, the present application provides a drying system, which includes a recovery device, a detection and conversion device, and a drying device of any embodiment in the first aspect, the recovery device is connected to the air inlet of the drying device through an input pipe, the exhaust mechanism of the drying device is connected to the recovery device through a recovery pipe, the recovery pipe is also connected to the input pipe through a conversion pipe, and the detection and conversion device is arranged on the recovery pipe between the exhaust mechanism and the conversion pipe; the detection and conversion device is used to open the conversion pipe and close the recovery pipe when the solvent concentration between the exhaust mechanism and the conversion pipe is less than a preset concentration; and to open the recovery pipe and close the conversion pipe when the solvent concentration between the exhaust mechanism and the conversion pipe is not less than a preset concentration; the recovery device is used to condense and recover the solvent in the return air.

[0021] The drying system designed above includes the drying device of the first aspect, so it does not generate the risk of low-temperature condensation during the drying and exhausting process, and has high reliability. In the drying system designed in this scheme, the exhaust mechanism of the drying device is connected to the recovery device through a recovery pipe, and the recovery pipe is also connected to the input pipe through a conversion pipe. The detection conversion device is arranged on the recovery pipe between the exhaust mechanism and the conversion pipe, and then the solvent concentration between the exhaust mechanism and the conversion pipe is determined by the detection conversion device. When the solvent concentration between the exhaust mechanism and the conversion pipe is less than the preset concentration, the detection conversion device opens the conversion pipe and closes the recovery pipe, so that the hot air with a solvent concentration less than the preset concentration enters the input pipe 4 again through the conversion pipe and then enters the drying device again for drying; when the solvent concentration between the exhaust mechanism and the conversion pipe is not less than the preset concentration, the hot air carrying the solvent enters the recovery device, and then the recovery device condenses and recovers the solvent in the return air (hot air carrying the solvent), thereby reducing the heat loss of the wind, and greatly reducing the difficulty of solvent processing caused by the reduction of the air volume processed by the equipment and the concentration after aggregation, thereby reducing the operating energy consumption.

[0022] In some embodiments, the detection and conversion device includes a solvent concentration detector and a pipeline conversion switch, and the solvent concentration detector is electrically connected to the pipeline conversion switch; the solvent concentration detector is used to detect the solvent concentration between the exhaust mechanism and the conversion pipeline; the pipeline conversion switch is used to control the opening and closing of the conversion pipeline and the recovery pipeline.

[0023] In the above implementation mode, the present solution realizes the opening and closing control of the conversion pipeline and the recovery pipeline by simplifying the solvent concentration detector and the pipeline conversion switch.

[0024] In some embodiments, the recovery device includes a heat recovery device and a solvent recovery device; the heat recovery device is used to exchange heat between the return air of the recovery pipeline and the inlet air of the input pipeline; the solvent recovery device is used to condense and recover the solvent carried by the return air of the recovery pipeline.

[0025] 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

[0026] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0027] Figure 1 A first structural schematic diagram of a drying device provided in an embodiment of the present application;

[0028] Figure 2 A schematic diagram of the structure of the exhaust mechanism provided in the embodiment of the present application;

[0029] Figure 3 A schematic diagram of the structure of a first air supply mechanism provided in an embodiment of the present application;

[0030] Figure 4 A second structural schematic diagram of a drying device provided in an embodiment of the present application;

[0031] Figure 5 A third structural schematic diagram of the drying device provided in an embodiment of the present application;

[0032] Figure 6 A fourth structural schematic diagram of a drying device provided in an embodiment of the present application;

[0033] Figure 7 A first structural schematic diagram of a drying system provided in an embodiment of the present application;

[0034] Figure 8 A second structural schematic diagram of a drying system provided in an embodiment of the present application;

[0035] Fig. 9 This is a third structural schematic diagram of the drying system provided in an embodiment of the present application.

[0036] Icons: 1-recovery device; 11-heat recovery device; 12-solvent recovery device; 2-detection conversion device; 21-solvent concentration detector; 22-pipeline conversion switch; 3-drying device; 4-input pipeline; 5-recovery pipeline; 6-conversion pipeline; 10-oven body; 110-oven cavity; 120-air inlet; 20-carrying mechanism; 210-carrying member; 30-heating mechanism; 40-first air supply mechanism; 410-spoiler; 420-spoiler hole; 50-exhaust mechanism; 510-exhaust air outlet; 520-exhaust connecting pipeline; 60-second air supply mechanism; 70-air outlet; A-object to be dried. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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).

[0043] 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.

[0044] 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.

[0045] During the production process, most handicrafts or metal products (such as battery electrodes, etc.) need to be dried by hot air on the handicrafts or metal products coated with solvents, and the return air and the solvents carried in the return air need to be recovered.

[0046] At present, most handicrafts or metal products are dried by using multiple ovens for overall exhaust treatment. However, the overall exhaust method of multiple ovens makes the recovery and drying pipelines longer, which in turn causes the risk of low-temperature condensation of the solvent during the long journey.

[0047] Based on the above problems, the present application designs a drying device and a drying system thereof. During the drying process of the object to be dried, an exhaust mechanism is arranged in a first air supply mechanism, and the first air supply mechanism and the exhaust mechanism therein are heated by a heating mechanism, so that on the basis of the heating device heating and heating the exhaust mechanism, the first air supply mechanism can keep the exhaust mechanism warm, thereby making the exhaust circuit containing the solvent in a higher temperature area, and thus there is no risk of low-temperature condensation during the drying exhaust process, thereby improving the reliability of the drying device.

[0048] Based on the above ideas, the present application first provides a drying device, which can be used to dry most handicrafts or metal products, especially battery electrodes, such as Figure 1 As shown, the drying device may include an oven body 10 having an oven cavity 110, an air inlet 120 is provided at the top of the oven body 10, a carrying mechanism 20 is provided at the bottom of the oven cavity 110, a heating mechanism 30, a first air supply mechanism 40 and an exhaust mechanism 50 are provided in the oven cavity 110, as shown in the figure, the heating mechanism 30 is provided between the first air supply mechanism 40 and the air inlet 120, and the exhaust mechanism 50 is provided inside the first air supply mechanism 40. The heating mechanism 30 is used to heat the air received by the air inlet 120 and the first air supply mechanism 40; the first air supply mechanism 40 is used to evenly disperse the heated air and transport the evenly dispersed air to the surface of the object A to be dried; the exhaust mechanism 50 is used to discharge the hot air carrying the solvent of the object A to be dried out of the drying device.

[0049] The drying device designed above takes the object A to be dried as a battery electrode piece to be dried as an example, wherein the battery electrode piece to be dried has a solvent. In this solution, the battery electrode piece can be first placed on the carrier mechanism 20 of the oven cavity 110. After the battery electrode piece is placed, the air inlet 120 of the drying device can receive wind with a relatively low temperature, and the wind with a relatively low temperature is transmitted to the heating mechanism 30 through the air inlet 120. The heating mechanism 30 heats the wind received by the air inlet 120 and transmits the heated wind to the first air supply mechanism 40. The first air supply mechanism 40 evenly transports the heated wind to the surface of the battery electrode piece to be dried. After drying the battery electrode piece, the hot wind carrying the solvent is discharged from the drying device by the exhaust mechanism 50. The temperature of the lower temperature wind can be any temperature from 20°C to 60°C, and the temperature of the hot air in the drying device can be any temperature from 140°C to 180°C. The condensation temperature of the solvent on the object to be dried changes with the change of the solvent. The inlet air temperature designed in this scheme and the temperature value of the wind after heating by the heating mechanism can change with the change of the solvent condensation temperature, and can be adaptively adjusted according to the actual application scenario.

[0050] The drying device designed as above, in the present solution, during the drying process of the object to be dried, the exhaust mechanism is arranged in the first air supply mechanism, and the first air supply mechanism and the exhaust mechanism therein are heated by the heating mechanism, so that on the basis of the heating device heating and heating the exhaust mechanism, the first air supply mechanism can keep the exhaust mechanism warm, thereby making the exhaust circuit containing the solvent in a higher temperature area, and thus there is no risk of low-temperature condensation during the drying exhaust process, thereby improving the reliability of the drying device.

[0051] In an optional implementation of this embodiment, if Figure 2As shown, the exhaust mechanism 50 designed in this scheme may include a plurality of exhaust vents 510 and an exhaust connecting pipe 520; wherein each exhaust vent 510 is connected to the exhaust connecting pipe 520; the exhaust connecting pipe 520 is arranged in the first air supply mechanism 40, and the plurality of exhaust vents 510 are located outside the first air supply mechanism 40 and face the object A to be dried.

[0052] The exhaust mechanism 50 designed above, through the design of multiple exhaust vents 510, sucks the hot air carrying the solvent after drying the electrode, and then merges into the exhaust connection pipeline 520 to discharge the drying device. Since the exhaust connection pipeline 520 is arranged in the first air supply mechanism 40, the exhaust connection pipeline 520 can be heated by the heating mechanism 30 and can be kept warm by the first air supply mechanism 40, so that the exhaust circuit containing the solvent is in a higher temperature area, and thus there is no risk of low-temperature condensation during the drying and exhausting process. In addition, the design of multiple exhaust vents 510 in this solution can accelerate the discharge of the hot air carrying the solvent in the drying device, and improve the discharge efficiency of the hot air carrying the solvent.

[0053] In an optional implementation of this embodiment, if Figure 3 As shown, the first air supply mechanism 40 of the present invention may include a plurality of spoilers 410, wherein each spoiler 410 is provided with a plurality of spoiler holes 420; the plurality of spoilers 410 are used to disturb the flow field of the heated air, thereby uniformly conveying the heated air to the surface of the object to be dried A. As another possible implementation, the first air supply mechanism 40 may also be in the form of a spoiler.

[0054] The first air supply mechanism 40 of the above design disturbs the flow field of the heated air through the plurality of spoilers 410, so as to evenly deliver the heated air to the surface of the object A to be dried, so that the object A to be dried can be evenly dried by the hot air, thereby improving the drying effect.

[0055] As a possible implementation manner, the diameter of the spoiler holes 420 formed on the plurality of spoilers 410 increases as the distance between the spoiler 410 and the air inlet 120 increases.

[0056] In the implementation scheme of the above-mentioned design, the aperture of the spoiler 410 that is farther away from the air inlet 120 is larger, thereby increasing the wind pressure exerted by the spoiler 410 that is farther away from the air inlet 120, so that the wind force received by the spoiler at a long distance and the spoiler close to the air inlet 120 is basically the same, thereby achieving the effect of evenly dispersing the incoming air.

[0057] In an optional implementation manner of this embodiment, as a possible implementation manner, Figure 4As shown, a second air supply mechanism 60 is further provided in the oven inner cavity 110 of the present invention. The second air supply mechanism 60 is provided between the heating mechanism 30 and the air inlet 120 to disperse and transmit the air received by the air inlet 120 to the heating mechanism 30 .

[0058] In the implementation of the above design, when the number of air inlets 120 designed in this solution is small, for example, when there is only one, the incoming air cannot be effectively dispersed. In order to further effectively disperse the incoming air and make the subsequent wind acting on the object to be dried A more uniform, the second air supply mechanism 60 is arranged between the heating mechanism 30 and the air inlet 120 in this solution, so that the incoming air is evenly dispersed before heating the heating mechanism 30. It should be noted that the structure of the second air supply mechanism 60 is the same as that of the first air supply mechanism 40, and will not be repeated here.

[0059] In an optional implementation manner of this embodiment, as another possible implementation manner, Figure 5 As shown, the number of air inlets 120 on the top of the oven body 10 designed in this solution can be multiple. In this case, the solution can set multiple air inlets 120 at different positions on the top of the oven body 10 to evenly disperse the incoming air.

[0060] In an optional implementation of this embodiment, if Figure 6 As shown, the bearing mechanism 20 designed in this solution may include a plurality of bearing members 210 arranged at intervals, wherein an air outlet 70 is arranged in the interval area between the plurality of bearing members 210. The bearing member 210 may be a lifting device such as a roller.

[0061] In the implementation of the above-mentioned design, the present solution forms a bearing mechanism 20 by means of a plurality of bearing members 210 arranged at intervals, thereby making the bearing of the object to be dried more stable.

[0062] In an optional implementation manner of this embodiment, the heating mechanism 30 described above may be specifically a heating pipe, such as a water heating pipe or an electric heating pipe, etc.

[0063] In an optional implementation manner of the present embodiment, the air inlet 120 described above may specifically be an upper hull structure. Of course, the air inlet may also be in other forms, such as a hole-shaped structure.

[0064] The present application also provides a drying system, such as Figure 7As shown, the drying system includes a recovery device 1, a detection conversion device 2 and the drying device 3 described above, the recovery device 1 is connected to the air inlet 120 of the drying device 3 through an input pipe 4, the exhaust mechanism 50 of the drying device 3 is connected to the recovery device 1 through a recovery pipe 5, and the recovery pipe 5 is also connected to the input pipe 4 through a conversion pipe 6, and the detection conversion device 2 is arranged on the recovery pipe 5 between the exhaust mechanism 50 and the conversion pipe 6. Wherein, the detection conversion device 2 is used to open the conversion pipe 6 and close the recovery pipe 5 when the solvent concentration between the exhaust mechanism 50 and the conversion pipe 6 is less than the preset concentration; and when the solvent concentration between the exhaust mechanism 50 and the conversion pipe 6 is not less than the preset concentration, the recovery pipe 5 is opened and the conversion pipe 6 is closed; the recovery device 1 is used to condense and recover the solvent in the return air. Wherein, the preset concentration can be 20% to 30% of the lower explosion limit concentration of the organic solvent, and in the case of non-organic solvent, the preset concentration is 5% to 20% of the relative air humidity at the current temperature.

[0065] In the drying system designed as above, when working, the recovery device 1 transmits the low-temperature air to the air inlet 120 of the drying device 3 through the input pipe 4. After the low-temperature air enters the drying device 3, it is heated by the heating mechanism 30 and transmitted to the object to be dried A through the first air supply mechanism 40 for drying. After the object to be dried A is dried, the exhaust mechanism 50 transmits the hot air carrying the solvent to the recovery pipe 5. In this case, the detection conversion device 2 determines the solvent concentration between the exhaust mechanism 50 and the conversion pipe 6. If the solvent concentration between the exhaust mechanism 50 and the conversion pipe 6 is less than the preset concentration, the detection conversion device 2 opens the conversion pipe 6 and closes the recovery pipe 5, so that the hot air with a solvent concentration less than the preset concentration enters the input pipe 4 again through the conversion pipe 6 and then enters the drying device again for drying.

[0066] If the detection conversion device 2 determines that the solvent concentration between the exhaust mechanism 50 and the conversion pipe 6 is not less than the preset concentration, in this case, it means that the solvent concentration meets the recovery requirements, and the detection conversion device 2 opens the recovery pipe 5 and closes the conversion pipe 6, so that the hot air carrying the solvent enters the recovery device 1, and then the recovery device 1 condenses and recovers the solvent in the return air (hot air carrying the solvent).

[0067] In the drying system designed above, the exhaust mechanism 50 of the drying device 3 of the present scheme is connected to the recovery device 1 through the recovery pipe 5, and the recovery pipe 5 is also connected to the input pipe 4 through the conversion pipe 6. The detection conversion device 2 is arranged on the recovery pipe 5 between the exhaust mechanism 50 and the conversion pipe 6, and then the solvent concentration between the exhaust mechanism 50 and the conversion pipe 6 is determined by the detection conversion device 2. When the solvent concentration between the exhaust mechanism 50 and the conversion pipe 6 is less than the preset concentration, the detection conversion device 2 opens the conversion pipe 6 and closes the recovery pipe 5, so that the hot air with a solvent concentration less than the preset concentration enters the input pipe 4 again through the conversion pipe 6 and then enters the drying device again for drying; when the solvent concentration between the exhaust mechanism 50 and the conversion pipe 6 is not less than the preset concentration, the hot air carrying the solvent enters the recovery device 1, and then the recovery device 1 condenses and recovers the solvent in the return air (hot air carrying the solvent), thereby reducing the heat loss of the wind, and greatly reducing the equipment processing air volume and the difficulty of solvent processing caused by the concentration reduction after aggregation, thereby reducing the operating energy consumption.

[0068] In an optional implementation of this embodiment, if Figure 8 As shown, the detection conversion device 2 described above may include a solvent concentration detector 21 and a pipeline conversion switch 22, the solvent concentration detector 21 is electrically connected to the pipeline conversion switch 22; the solvent concentration detector 21 is used to detect the solvent concentration between the exhaust mechanism 50 and the conversion pipeline 6; the pipeline conversion switch 22 is used to control the opening and closing of the conversion pipeline and the recovery pipeline. Specifically, the solvent concentration detector 21 and the pipeline conversion switch 22 can be electrically connected to an external controller, and the external controller can receive the solvent concentration transmitted by the solvent concentration detector 21, thereby determining the solvent concentration and the preset concentration, and then sending a control signal to the pipeline conversion switch 22 to realize the opening and closing control of the recovery pipeline 5 and the conversion pipeline 6.

[0069] In an optional implementation of this embodiment, if Fig. 9As shown, the recovery device 1 designed in this scheme may include a heat recovery device 11 and a solvent recovery device 12; the heat recovery device 11 is used to perform heat exchange between the return air of the recovery pipe 5 and the inlet air of the input pipe 4; the solvent recovery device 12 is used to condense and recover the solvent carried by the return air of the recovery pipe 5. Among them, in this scheme, the temperature of the wind from the solvent recovery device 12 to the heat recovery device 11 can be any temperature between 20°C and 40°C, and the wind from the heat recovery device 11 to the input pipe 4 of the air inlet 120 increases its temperature due to heat exchange through the heat recovery device 11, and its temperature range can be 80°C to 110°C; the hot air temperature in the drying device can be any temperature between 140°C and 180°C, the air temperature between the exhaust mechanism 50 and the conversion pipe 6 can be any temperature between 120°C and 140°C; the air temperature between the conversion pipe 6 and the input pipe 4 can be any temperature between 110°C and 120°C.

[0070] 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. A drying device, characterized in that: The device comprises: an oven main body having an oven inner cavity, an air inlet is arranged at the top of the oven main body, and a bearing mechanism is arranged at the bottom of the oven inner cavity for bearing the object to be dried; The oven inner cavity is provided with a heating mechanism, a first air supply mechanism and an exhaust mechanism; The heating mechanism is arranged between the first air supply mechanism and the air inlet, and the exhaust mechanism is arranged inside the first air supply mechanism; The heating mechanism is used to heat the air received by the air inlet and the first air supply mechanism; The first air supply mechanism is used to deliver heated air to the surface of the object to be dried; The exhaust mechanism is used to exhaust hot air carrying the solvent of the object to be dried out of the drying device.

2. The drying device according to claim 1, characterized in that: The exhaust mechanism includes a plurality of exhaust vents and an exhaust connecting pipeline; wherein each exhaust vent is connected to the exhaust connecting pipeline; The exhaust connection pipeline is arranged in the first air supply mechanism, and the plurality of exhaust air outlets are located outside the first air supply mechanism and face the object to be dried.

3. The drying device according to claim 1, characterized in that: The first air supply mechanism includes a plurality of spoilers; wherein each spoiler is provided with a plurality of spoiler holes; The plurality of spoilers are used to disturb the flow field of the heated wind so as to transport the heated wind to the surface of the object to be dried.

4. The drying device according to claim 3, characterized in that: The diameter of the spoiler holes formed on the plurality of spoilers increases as the distance between the spoiler and the air inlet increases.

5. The drying device according to claim 1, characterized in that: A second air supply mechanism is also provided in the inner cavity of the oven; The second air supply mechanism is disposed between the heating mechanism and the air inlet to disperse and transmit the wind received by the air inlet to the heating mechanism.

6. The drying device according to claim 1, characterized in that: The number of air inlets on the top of the oven body is multiple.

7. The drying device according to claim 1, characterized in that: The bearing mechanism comprises a plurality of bearing members arranged at intervals; wherein an air outlet is arranged in the interval area between the plurality of bearing members.

8. The drying device according to any one of claims 1 to 7, characterized in that: in, The object to be dried includes a battery electrode.

9. A drying system, characterized in that: The drying system comprises a recovery device, a detection conversion device and a drying device as described in any one of claims 1 to 8; The recovery device is connected to the air inlet of the drying device through an input pipe, the exhaust mechanism of the drying device is connected to the recovery device through a recovery pipe, the recovery pipe is also connected to the input pipe through a conversion pipe, and the detection conversion device is arranged on the recovery pipe between the exhaust mechanism and the conversion pipe; The detection conversion device is used to open the conversion pipeline and close the recovery pipeline when the solvent concentration between the exhaust mechanism and the conversion pipeline is less than a preset concentration; and to open the recovery pipeline and close the conversion pipeline when the solvent concentration between the exhaust mechanism and the conversion pipeline is not less than a preset concentration; The recovery device is used to condense and recover the solvent in the return air.

10. The drying system according to claim 9, characterized in that: The detection conversion device includes a solvent concentration detector and a pipeline conversion switch, and the solvent concentration detector is electrically connected to the pipeline conversion switch; The solvent concentration detector is used to detect the solvent concentration between the exhaust mechanism and the conversion pipeline; The pipeline conversion switch is used to control the opening and closing of the conversion pipeline and the recovery pipeline.

11. The drying system according to claim 9, characterized in that: The recovery device includes a heat recovery device and a solvent recovery device; The heat recovery device is used to perform heat exchange between the return air of the recovery pipeline and the inlet air of the input pipeline; The solvent recovery device is used to condense and recover the solvent carried by the return air of the recovery pipeline.

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