Drying Furnace Screen Layout for Uniform Electrode Substrate Drying
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Solution Overview
Problem
Conventional electrode substrate drying methods result in temperature differences between the center and side parts, leading to decreased adhesive force and surface cracks due to excessive drying of the side parts.
Innovation Solution
A screen is used to control the flow of hot air during the drying process, with a center part having a higher opening ratio and wind speed compared to the side parts, and through holes that gradually decrease in diameter towards the side parts, ensuring uniform drying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional drying method is used, then drying process is simple, but temperature difference between center and side parts occurs causing surface cracks and reduced adhesive force
Solution Approach 1:
The screen is designed with different opening ratios for different regions: the center part has a first opening ratio while the side parts have a second opening ratio that is greater than the first. This local differentiation of structural properties allows tailored hot air flow distribution to specific regions, achieving uniform drying across the electrode substrate width without requiring complex external control systems
2Productivity
If hot air flow is increased to improve drying efficiency, then drying speed increases, but temperature difference between regions worsens causing surface cracks
Solution Approach 1:
By assigning different opening ratios to different screen regions, the invention enables localized control of hot air flow intensity. The side parts with greater opening ratios receive more hot air flow than the center part, compensating for the natural cooling effect at edges and maintaining uniform drying conditions across the entire substrate surface, thus preventing surface cracks while preserving drying efficiency
3Manufacturing precision
If screen opening ratio is increased to improve hot air distribution, then drying uniformity improves, but hot air flow control precision decreases
Solution Approach 1:
The screen is divided into distinct regions (center part and side parts) with different opening ratios, creating segmented flow control zones. This segmentation allows each region to be optimized independently for its specific drying requirements, maintaining reliable and precise hot air flow control across different areas of the electrode substrate simultaneously
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method achieves uniform drying of the electrode substrate, reducing temperature differences and preventing surface cracks by controlling hot air distribution.
Implementation Method 1
a screen which is positioned on a hot air discharge line of the hot air discharge unit and controls hot air discharged from the nozzle
Implementation Method 2
a drying furnace which dries an electrode substrate transferred along a transfer line
Data Source
AI summary
The present technology relates to an equipment and method for drying an electrode substrate including a screen for distributing the flow of hot air, and according to the present technology, it is possible to uniformly dry the electrode substrate in the width direction. The equipment includes a drying furnace configured to dry the electrode substrate, a hot air discharge unit including a nozzle configured to discharge hot air; and a screen positioned on a hot air discharge line of the hot air discharge unit configured to control the hot air discharged from the nozzle.