An intelligent and efficient drying and low disturbance cooling system for very thin lithium battery copper foil

Abstract

The utility model discloses a kind of extremely thin lithium battery copper foil intelligent efficient drying and low disturbance cooling system, including drying cabinet, cooling box, still including installation air knife drying system on drying cabinet and installation air knife cooling system on cooling box;The air knife drying system includes the heat source box at the top of drying cabinet, the heat conduction air pipe connected with heat source box, the hot air pipe at the inside upper and lower of drying cabinet and several equidistantly installed hot air knife on hot air pipe, the heat conduction air pipe is butt joint with hot air pipe;The air knife cooling system includes the cold source box on cooling box, the cold air pipe connected with cold source box, the cold air pipe at the inside upper and lower of cooling box and several equidistantly installed cold air knife on cold air pipe, the cold air pipe is butt joint with cold air pipe.The device uses double-sided symmetrical air knife drying system, symmetrical double cold air knife cooling system and monitoring system, effectively improve drying efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of electrolytic copper foil production equipment, specifically to an intelligent and efficient drying and low-disturbance cooling system for ultra-thin lithium-ion battery copper foil. Background Technology

[0002] In the electrolytic copper foil production process, the copper foil generated by the cathode roller of the foil-making machine, after being peeled off, needs to undergo post-processing steps such as pickling, washing, and drying and cooling. The traditional drying and cooling process, which uses a horizontal induction oven for simple heating and drying, combined with a top fan for cooling, has significant drawbacks:

[0003] Low thermal efficiency: Single-sided heating results in low thermal energy utilization and easily causes uneven heating of copper foil, leading to stress deformation.

[0004] Uneven cooling: The top-down airflow method causes a difference in cooling rate between the upper and lower surfaces of the copper foil, and the foil surface vibrates.

[0005] Therefore, in order to correct the above-mentioned defects, we propose an intelligent and efficient drying and low-disturbance cooling system for ultra-thin lithium-ion battery copper foil. Utility Model Content

[0006] The technical problem solved by this utility model is to propose an intelligent and efficient drying and low-disturbance cooling system for ultra-thin lithium battery copper foil.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an intelligent and efficient drying and low-disturbance cooling system for ultra-thin lithium battery copper foil, including a drying box, a cooling box, an air knife drying system installed on the drying box, and an air knife cooling system installed on the cooling box;

[0008] The air knife drying system includes a heat source box at the top of the drying chamber, a heat-conducting air duct connected to the heat source box, hot air ducts inside the drying chamber, and several hot air knives equidistantly installed on the hot air ducts. The heat-conducting air ducts are connected to the hot air ducts.

[0009] The air knife cooling system includes a cold source box on the cooling box, a cold air duct connected to the cold source box, cold air ducts located inside the cooling box, and several cold air knives equidistantly installed on the cold air ducts, wherein the cold air duct is connected to the cold air duct.

[0010] Furthermore, an electric heating element and a centrifugal fan are installed inside the heat source box.

[0011] Furthermore, a centrifugal fan is installed inside the cold source box.

[0012] Furthermore, the angle between the hot air knife and the hot air pipe is 30-60°.

[0013] Furthermore, the angle between the cold air knife and the cold air duct is 30-60°.

[0014] Furthermore, both the drying oven and the cooling oven are equipped with a monitoring system, which includes a moisture monitor, a temperature and humidity detector, and a tension sensor.

[0015] Compared with the prior art, the beneficial effects of this utility model are: this device adopts a double-sided symmetrical air knife drying system, a symmetrical double cold air knife cooling system and a monitoring system, which effectively improves the drying efficiency, and the air knife tilt angle is adjustable (30°-60°), avoiding the shaking caused by traditional top blowing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the hot air knife installation structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the intercooled air knife of this utility model. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides a technical solution:

[0022] like Figure 1-4 As shown, an intelligent and efficient drying and low-disturbance cooling system for ultra-thin lithium-ion battery copper foil includes a drying box 1 and a cooling box 2. The drying box 1 and cooling box 2 have the same structure as the oven cooling box in the current traditional drying and cooling process. It also includes an air knife drying system installed on the drying box 1 and an air knife cooling system installed on the cooling box 2.

[0023] The air knife drying system includes a heat source box 3 at the top of the drying box 1, a heat-conducting air duct 5 connected to the heat source box 3, a hot air duct 7 located inside the drying box 1 at the top and bottom, and several hot air knives 9 equidistantly installed on the hot air duct 7. The heat-conducting air duct 5 is connected to the hot air duct 7.

[0024] The heat generated by the electric heating tube inside the heat source box 3 is blown into the heat conduction air duct 5 by the centrifugal fan, and then enters the upper and lower distributed hot air ducts 7 from the heat conduction air duct 5, and is then discharged from the hot air knife 9 on the hot air duct 7. In this way, the copper foil entering the drying box 1 is dried by hot air from both the top and bottom.

[0025] The air knife cooling system includes a cold source box 4 on the cooling box 2, a cold air duct 6 connected to the cold source box 4, a cold air duct 10 located inside the cooling box 2, and several cold air knives 12 equidistantly installed on the cold air duct 10. The cold air duct 6 is connected to the cold air duct 10.

[0026] The air generated by the centrifugal fan 2 inside the cold source box 4 enters the cooling air duct 6. The cooling air duct 6 guides the air into the upper and lower distributed cooling air ducts 10, and then discharges it from the air knife on the cooling air duct 10. In this way, the copper foil entering the drying box 1 is cooled from the top and bottom at the same time.

[0027] The hot air knife 9 and the hot air duct 7 are connected by a three-way valve and a flange. The angle between the hot air knife 9 and the hot air duct 7 can be adjusted between 30° and 60° through the flange. Similarly, the cold air knife 12 and the cold air duct 10 are connected by a three-way valve and a flange. The angle between the cold air knife 12 and the cold air duct 10 can also be adjusted between 30° and 60° through the flange.

[0028] In addition, both drying chamber 1 and cooling chamber 2 are equipped with monitoring systems. These systems are multi-parameter feedback systems built on a PLC, including a moisture monitor 14, a temperature and humidity detector 15, and a tension sensor 13. In the double-sided symmetrical air knife drying system, the system monitors the moisture content, temperature, and humidity of the copper foil in real time and dynamically adjusts the hot air power and wind speed based on the real-time data. In the symmetrical double-cooling air knife cooling system, the system monitors the temperature and humidity of the copper foil and the fluctuations in copper foil tension in real time. The intelligent control system can dynamically adjust the wind speed and air knife temperature required for drying and cooling copper foil of different thicknesses, improving drying and cooling efficiency, achieving energy saving and consumption reduction while also improving production stability.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart and efficient drying and low-disturbance cooling system for ultra-thin lithium-ion battery copper foil, comprising a drying chamber (1) and a cooling chamber (2), characterized in that: It also includes an air knife drying system installed on the drying box (1) and an air knife cooling system installed on the cooling box (2); The air knife drying system includes a heat source box (3) at the top of the drying box (1), a heat-conducting air pipe (5) connected to the heat source box (3), a hot air pipe (7) inside the drying box (1) and several hot air knives (9) installed at equal intervals on the hot air pipe (7), wherein the heat-conducting air pipe (5) is connected to the hot air pipe (7). The air knife cooling system includes a cold source box (4) on the cooling box (2), a cold air duct (6) connected to the cold source box (4), a cold air duct (10) inside the cooling box (2) and several cold air knives (12) installed at equal intervals on the cold air duct (10), and the cold air duct (6) is connected to the cold air duct (10).

2. The intelligent and efficient drying and low-disturbance cooling system for ultra-thin lithium-ion battery copper foil according to claim 1, characterized in that: The heat source box (3) is equipped with an electric heating tube and a centrifugal fan.

3. The intelligent and efficient drying and low-disturbance cooling system for ultra-thin lithium-ion battery copper foil according to claim 1, characterized in that: Centrifugal fan 2 is installed inside the cold source box (4).

4. The intelligent and efficient drying and low-disturbance cooling system for ultra-thin lithium-ion battery copper foil according to claim 1, characterized in that: The angle between the hot air knife (9) and the hot air pipe (7) is 30-60°.

5. The intelligent and efficient drying and low-disturbance cooling system for ultra-thin lithium-ion battery copper foil according to claim 1, characterized in that: The angle between the cold air knife (12) and the cold air pipe (10) is 30-60°.

6. The intelligent and efficient drying and low-disturbance cooling system for ultra-thin lithium-ion battery copper foil according to claim 1, characterized in that: Both the drying oven (1) and the cooling oven (2) are equipped with a monitoring system, which includes a moisture monitor (14), a temperature and humidity detector (15), and a tension sensor (13).

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