Battery Film Drying Tunnel Furnace

The battery film drying tunnel furnace is a high-efficiency continuous thermal processing equipment specially designed for film materials such as lithium battery electrode sheets, separators, and capacitor electrodes.It adopts a tunnel-type structure. Through precise temperature control and optimized air duct design, it can rapidly dry solvents or moisture on the surface of film materials.

Product Applications

Electrode Sheet Drying:

Used to remove solvents (such as NMP or water) after slurry coating on lithium battery positive and negative electrode sheets.

Separator Processing:

Used for drying or thermal modification after coating of battery separators.

Curing Treatment:

Used for thermal curing of specific battery auxiliary materials.

Product Parameters

Product Features

Precise Temperature Control:

Independent temperature control in multiple sections ensures accurate adjustment of each heating zone.

Uniform Drying:

The double-sided air duct design ensures even airflow distribution and uniform drying performance.

High Efficiency and Energy Saving:

The hot air circulation system effectively recycles heat energy and reduces energy consumption.

Extremely Low Dust:

Built-in high-efficiency filtration system minimizes dust contamination during the drying process.

Intelligent Explosion Protection:

Equipped with solvent concentration alarms and exhaust systems to ensure safe operation.

FAQ

Q1: How does this furnace ensure uniform heating of battery films?

A1: The equipment adopts multi-section independent temperature zone control combined with specially designed microporous air plates for hot air circulation, ensuring extremely small temperature differences across the surface of the film material.

Q2: How can coating cracking be prevented during the drying process?

A2: The PLC system is used to set a progressive temperature curve. The front section adopts low-temperature pre-drying, the middle section performs high-temperature drying, and the rear section uses gradual cooling, effectively preventing surface cracking of the film material.

Q3: How are organic solvents such as NMP generated during drying treated?

A3: The system is equipped with a dedicated exhaust air interface and can be linked with an explosion-proof alarm system to safely transport waste gases to solvent recovery or exhaust gas treatment systems.

Q4: Can the equipment length be customized according to factory space?

A4: Yes. The tunnel furnace adopts a modular assembly design. The drying section length and conveyor belt width can be customized according to your production capacity and available installation space.

Q5: What material is used for the conveyor belt? Will it damage the film material?

A5: Teflon mesh belts or stainless steel mesh belts are commonly used. They feature a smooth surface, high-temperature resistance, stable operation, and will not scratch, stretch, or deform the film material.