Circulating type drying device for lithium batteries

Abstract

The lithium battery circulating type drying device is characterized in that supporting plates are fixedly connected to the positions, close to the two side edges, of the bottom end of a drying box, the side walls, away from each other and close to the drying box, of the two supporting plates are fixedly connected with a containing plate, and the side wall of the top of the containing plate is fixedly connected with a circulating box; a steam conveying pipe is fixedly connected to the middle of the side wall of the top, away from the containing plate, of the circulating box and extends into the drying box, and the first circulating pipe and the second circulating pipe are connected to the inner container in a wound mode. Steam flows along the first circulating pipe and the second circulating pipe, the temperature of the interior of the inner container is increased according to the heat radiation principle, and therefore the lithium battery assembly is heated and dried, and the steam flowing in the first circulating pipe and the second circulating pipe can finally enter the corresponding circulating boxes. And the steam is conveyed into the first circulating pipe and the second circulating pipe again after being treated by the circulating box, so that the function of recycling the steam is realized, and the stability of heating and drying is ensured while the use efficiency of a heat source is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery drying devices, in particular to a lithium battery circulating drying device. Background Art

[0002] Lithium batteries are a common type of energy storage product. They store electricity in batteries, and then install the batteries in corresponding positions to provide power for equipment. They are also one of the most common ways of applying electricity. The production of lithium batteries requires many processes, among which components such as electrode sheets need to be dried. There are many types of drying equipment available today, which can meet the needs of most manufacturers.

[0003] The current drying equipment is basically infrared, hot air and sound waves. The heat source of these drying equipment is single, and the heat generated cannot be recycled and can only be dissipated outward. In addition to heating and drying the lithium battery components, it can only be wasted. Therefore, a circulating drying device is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the current drying equipment is basically infrared, hot air and sound waves, etc. The heat source of these drying equipment is single, and the heat generated cannot be recycled and can only be dissipated outward. Except for heating and drying the lithium battery components, it can only be lost and wasted. A circulating drying device is provided, so that it can be sent back into the No. 1 circulation pipe and the No. 2 circulation pipe after processing through the circulation box, thereby realizing the function of recycling and reusing steam, improving the efficiency of the use of heat sources while ensuring the stability of heating and drying.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a lithium battery circulating drying device, including a drying box, the bottom of the drying box and near the two side edges are fixedly connected with support plates, the two support plates are fixedly connected with containing plates away from each other and close to the side walls of the drying box, the top side walls of the containing plates are fixedly connected with a circulation box, the middle of the top side walls of the circulation box away from the containing plates is fixedly connected with a steam supply pipe, the steam supply pipe extends into the interior of the drying box, an inner liner is set in the drying box, and a No. 1 circulation pipe and a No. 2 circulation pipe are wound around the inner liner.

[0006] As a preferred technical solution of the utility model, the No. 1 circulation pipe and the No. 2 circulation pipe are staggered with each other, one end of the steam supply pipe located in the inner tank is fixedly connected to one end of the No. 1 circulation pipe, and the bottom end of the No. 2 circulation pipe is fixedly connected to an exhaust pipe, and one end of the exhaust pipe passes through the side wall of the drying box and is fixedly connected to the side wall of the circulation box.

[0007] As a preferred technical solution of the utility model, the side wall of the circulation box away from the drying box and close to the top is fixedly connected with an extension plate, the top side wall of the extension plate is detachably connected with a vacuum pump, the middle side wall inside the circulation box is fixedly connected with a heating partition, and the top of the circulation box and one side of the steam supply pipe is fixedly connected with a water inlet.

[0008] As a preferred technical solution of the utility model, the interior of the circulation box is divided into a steam storage tank and a heating tank by a heating partition, the steam supply pipe is connected to the heating tank, and the top side wall of the heating tank is set as a conical structure, the exhaust pipe is connected to the steam storage tank, and the heating partition is embedded with an electric heating pipe, and the heating tank is connected to the output end of the vacuum pump.

[0009] As a preferred technical solution of the utility model, the two circulation boxes have the same structure, and are connected to one end of the No. 1 circulation pipe and the No. 2 circulation pipe through a steam supply pipe and an exhaust pipe, and the connection ports are opposite. Conveyor belts are interspersed in the drying box and the inner tank, and lithium battery assemblies are placed on the conveyor belts.

[0010] The utility model has the following advantages: the No. 1 circulation pipe and the No. 2 circulation pipe are wound and connected to the inner tank, and the steam for heating can be sent into the No. 2 circulation pipe and the No. 1 circulation pipe through the processing of two circulation boxes, and the steam flows along the No. 1 circulation pipe and the No. 2 circulation pipe to heat the inside of the inner tank through the principle of heat radiation, thereby heating and drying the lithium battery assembly, and the steam flowing in the No. 1 circulation pipe and the No. 2 circulation pipe will eventually enter the corresponding circulation box, and after being processed by the circulation box, it will be sent back into the No. 1 circulation pipe and the No. 2 circulation pipe, thereby realizing the function of recycling and reusing the steam, improving the utilization efficiency of the heat source while ensuring the stability of heating and drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of a preferred embodiment of the utility model;

[0012] Figure 2 It is a schematic diagram of the side plan structure of a preferred embodiment of the utility model;

[0013] Figure 3 This is a schematic diagram of the planar structure of a circulation box of a preferred embodiment of the utility model;

[0014] Figure 4 It is a schematic diagram of the three-dimensional structure of the inner tank and the circulation pipe of a preferred embodiment of the utility model.

[0015] Explanation of the reference numerals: 1. Drying box; 2. Support plate; 3. Holding plate; 4. Circulation box; 5. Extension plate; 6. Vacuum pump; 7. Steam supply pipe; 8. Conveyor belt; 9. Water inlet; 10. Inner tank; 11. Circulation pipe No. 1; 12. Circulation pipe No. 2; 13. Exhaust pipe; 14. Heating partition; 15. Steam storage tank; 16. Heating tank. DETAILED DESCRIPTION

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Please refer to Figure 1-4 The utility model discloses a lithium battery circulation drying device, comprising a drying box 1, a support plate 2 is fixedly connected to the bottom end of the drying box 1 and near the edges on both sides, a holding plate 3 is fixedly connected to the two support plates 2 away from each other and close to the side wall of the drying box 1, a circulation box 4 is fixedly connected to the top side wall of the holding plate 3, a steam supply pipe 7 is fixedly connected to the middle of the top side wall of the circulation box 4 away from the holding plate 3, the steam supply pipe 7 extends into the drying box 1, an inner liner 10 is set in the drying box 1, and a first circulation pipe 11 and a second circulation pipe 12 are wound around the inner liner 10;

[0018] The No. 1 circulation pipe 11 and the No. 2 circulation pipe 12 are staggered with each other, one end of the steam supply pipe 7 located in the inner tank 10 is fixedly connected to one end of the No. 1 circulation pipe 11, and the bottom end of the No. 2 circulation pipe 12 is fixedly connected to the exhaust pipe 13, one end of the exhaust pipe 13 passes through the side wall of the drying box 1 and is fixedly connected to the side wall of the circulation box 4, and the side wall of the circulation box 4 away from the drying box 1 and close to the top is fixedly connected to the extension plate 5, and the top side wall of the extension plate 5 is detachably connected to the vacuum pump 6, and the middle side wall of the circulation box 4 is fixedly connected to the heating partition 14, and the top of the circulation box 4 and the side of the steam supply pipe 7 are fixedly connected to the water inlet 9. The interior of the circulation box 4 is divided into a steam storage tank 15 and a heating tank 16 by the heating partition 14, the steam supply pipe 7 is communicated with the heating tank 16, and the top side wall of the heating tank 16 is set as a conical structure, and the exhaust pipe 13 is communicated with the steam storage tank 15.

[0019] The technical effect of this scheme is as follows: the high-temperature steam generated in the circulation box 4 is sent into the corresponding No. 1 circulation pipe 11 through the steam supply pipe 7, the steam flows along the No. 1 circulation pipe 11 and is finally sent into another circulation box 4 through the exhaust pipe 13, so as to heat the water in the other circulation box 4 to evaporate it and generate high-temperature steam, and then the high-temperature steam will enter the corresponding No. 2 circulation pipe 12 along the steam supply pipe 7. Through the above-mentioned circulation principle, the effect of smooth circulation of high-temperature steam is achieved. In this way, the heat can be recycled multiple times to avoid waste of resources caused by heat loss, and the No. 1 circulation pipe 11 and the No. 2 circulation pipe 12 can cover the inner tank 10 more comprehensively, thereby ensuring a stable heating and drying effect.

[0020] The two circulation boxes 4 have the same structure, and both circulation boxes 4 are connected to one end of the No. 1 circulation pipe 11 and the No. 2 circulation pipe 12 through the steam supply pipe 7 and the exhaust pipe 13, and the connection ports are opposite. A conveyor belt 8 is interspersed in the drying box 1 and the inner tank 10, and a lithium battery assembly is placed on the conveyor belt 8. An electric heating tube is embedded in the heating partition 14, and the heating tank 16 is connected to the output end of the vacuum pump 6.

[0021] The technical effect of this solution is as follows: to ensure smooth heating and improve the efficiency of steam generation, the air in the heating tank 16 is extracted through the vacuum pump 6 to reduce the air pressure, thereby reducing the time consumed by water boiling. To ensure smooth heating, a heating baffle 14 with an electric heating tube embedded inside is installed on the inner wall of the circulation box 4. The electric heating tube can be used to assist in heating the water in the heating tank 16 to ensure that there will be no accidents during the entire process.

[0022] Specifically, when the utility model is used, heating water is injected into the heating tank 16 through the water inlet 9, and then the water inlet 9 is blocked, and then the vacuum pump 6 is started to extract the air in the heating tank 16 to form a low-pressure environment. The first start-up uses the electric heating tube in the heating partition 14 to heat the water to make it boil, and the generated steam rises along the steam delivery pipe 7 into the No. 1 circulation pipe 11 or the No. 2 circulation pipe 12, and then the steam flows along the No. 1 circulation pipe 11 or the No. 2 circulation pipe 12. During the circulation process, the heat is radiated into the inner tank 10 to heat and dry the lithium battery components. The circulating steam is finally discharged through the exhaust The steam pipe 13 enters the corresponding steam storage tank 15, and the steam entering the steam storage tank 15 still contains a certain high temperature, and the water in the heating tank 16 is heated by this high temperature. At this time, the power of the heating partition 14 can be gradually reduced until it is completely shut down. When necessary, the heating partition 14 can be started for auxiliary heating, which can effectively reduce the consumption of existing energy and recycle heat energy to avoid waste of heat energy. In addition, the flow directions of the steam in the No. 1 circulation pipe 11 and the No. 2 circulation pipe 12 are opposite, which can ensure that the inner tank 10 is at the same temperature all over, avoiding the drying effect affected by the temperature difference;

[0023] Because waste heat steam will continue to be injected into the steam storage tank 15, in order to avoid safety problems caused by excessive pressure in the steam storage tank 15, a pressure relief valve or a device structure with the same function can be connected to the side wall of the steam storage tank 15 when necessary to discharge the pressure in the steam storage tank 15 at regular intervals to improve overall safety.

[0024] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

[0025] Other parts of the present invention not described in detail belong to the prior art and will not be described in detail here.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A lithium battery circulation drying device, comprising a drying box (1), characterized in that: The bottom end of the drying box (1) and near the two side edges are fixedly connected with support plates (2), the two support plates (2) are fixedly connected with a containing plate (3) away from each other and close to the side wall of the drying box (1), the top side wall of the containing plate (3) is fixedly connected with a circulation box (4), the middle of the top side wall of the circulation box (4) away from the containing plate (3) is fixedly connected with a steam supply pipe (7), the steam supply pipe (7) extends into the interior of the drying box (1), an inner liner (10) is provided in the drying box (1), and a first circulation pipe (11) and a second circulation pipe (12) are wound around the inner liner (10).

2. A lithium battery circulation drying device as claimed in claim 1, characterized in that: The No. 1 circulation pipe (11) and the No. 2 circulation pipe (12) are interlaced with each other, one end of the steam supply pipe (7) located in the inner tank (10) is fixedly connected to one end of the No. 1 circulation pipe (11), and the bottom end of the No. 2 circulation pipe (12) is fixedly connected to an exhaust pipe (13), and one end of the exhaust pipe (13) passes through the side wall of the drying box (1) and is fixedly connected to the side wall of the circulation box (4).

3. A lithium battery circulation drying device as claimed in claim 2, characterized in that: The side wall of the circulation box (4) away from the drying box (1) and close to the top is fixedly connected to an extension plate (5), the top side wall of the extension plate (5) is detachably connected to an exhaust pump (6), the middle side wall inside the circulation box (4) is fixedly connected to a heating partition (14), and the top of the circulation box (4) and one side of the steam supply pipe (7) is fixedly connected to a water inlet (9).

4. A lithium battery circulation drying device as claimed in claim 2, characterized in that: The interior of the circulation box (4) is divided into a steam storage tank (15) and a heating tank (16) by a heating partition (14); the steam supply pipe (7) is connected to the heating tank (16), and the top side wall of the heating tank (16) is set as a conical structure; the exhaust pipe (13) is connected to the steam storage tank (15); an electric heating pipe is embedded in the heating partition (14); and the heating tank (16) is connected to the output end of the vacuum pump (6).

5. A lithium battery circulation drying device as claimed in claim 1, characterized in that: The two circulation boxes (4) have the same structure, and both of the circulation boxes (4) are connected to one end of the No. 1 circulation pipe (11) and the No. 2 circulation pipe (12) through a steam supply pipe (7) and an exhaust pipe (13), and the connection ports are opposite. A conveyor belt (8) is inserted into the drying box (1) and the inner tank (10), and a lithium battery assembly is placed on the conveyor belt (8).

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