Vertical Strip Rinsing Layout for Low-Water Oxidation Control
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Solution Overview
Problem
Conventional metal strip processing lines face issues with complex and inflexible rinsing apparatuses that consume large amounts of water, lead to oxidation and staining of the metal strip, and are difficult to maintain, due to the simultaneous action of air and rinsing water causing discoloration during prolonged stoppages.
Innovation Solution
A vertically oriented rinsing apparatus with multiple roller pairs and an encapsulating shield that uses gravity and roller rotation to efficiently cascade rinse liquid over the metal strip, reducing water usage and oxidation risks, while maintaining a laminar flow to prevent liquid loss and contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional rinsing apparatus with tanks, pumps, and sprayers is used, then rinsing function is achieved, but device complexity increases and maintenance difficulty increases
Solution Approach 1:
The patent extracts and eliminates complex components such as tanks, pumps, level controls, and flow controls from the rinsing system. The simplified apparatus uses only a support structure, rinsing liquid supply means, and drying means, removing unnecessary complexity while maintaining rinsing functionality.
Solution Approach 2:
The support structure serves multiple functions: it holds the metal strip, provides the rinsing liquid supply means, and incorporates the drying means. This multi-functional design eliminates the need for separate tanks, pumps, and control systems, thereby simplifying the overall device.
2Productivity
If metal strip is rinsed by spraying rinsing liquid directly onto the metal strip, then rinsing efficiency is improved, but metal strip surface suffers serious discoloration due to oxidation
Solution Approach 1:
The patent introduces an intermediary protective atmosphere (inert gas or vapor) between the rinsing liquid and the metal strip surface. This intermediary layer prevents direct contact between oxygen/air and the metal strip, thereby preventing oxidation and discoloration while allowing efficient rinsing to occur.
Solution Approach 2:
The patent creates an inert atmosphere environment during the rinsing process by introducing inert gas or vapor. This inert environment displaces oxygen and prevents oxidative reactions on the metal strip surface, eliminating discoloration while maintaining high rinsing efficiency.
3Ease of repair
If prolonged stoppages of metal strip movement through the rinse station occur, then maintenance and inspection are facilitated, but metal strip surface suffers serious discoloration due to oxidation
Solution Approach 1:
The patent applies preliminary protective action by establishing the inert atmosphere before any stoppage occurs. The protective environment is maintained continuously, ensuring that even during prolonged stoppages for inspection or maintenance, the metal strip surface remains protected from oxidation and discoloration.
Solution Approach 2:
The inert atmosphere system operates continuously regardless of metal strip movement status. During stoppages, the inert gas or vapor maintains the protective environment, preventing oxidation on exposed metal strip surfaces and eliminating discoloration issues associated with prolonged停机和inspection.
4Productivity
If state-of-the-art rinsing apparatus is used in continuous metal strip processing line, then rinsing function is achieved, but considerable amounts of space are required and amount of waste water produced is large
Solution Approach 1:
The patent extracts and eliminates large tanks, complex pump systems, and extensive waste water treatment facilities from the rinsing apparatus. The simplified design uses minimal components that occupy significantly less space while performing the same rinsing function effectively.
Solution Approach 2:
The patent implements a waste water recovery and recycling system where used rinsing liquid is collected and reused. This reduces the volume of waste water requiring treatment and disposal, thereby reducing the space required for waste water treatment facilities while maintaining effective rinsing function.
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 solution reduces the risk of oxidation and staining, minimizes water consumption, and simplifies maintenance by using a counterflow mechanism to effectively rinse the metal strip with a reduced footprint, enhancing the rinsing process's efficiency and control.
Implementation Method 1
uses gravity and roller rotation to efficiently cascade rinse liquid over the metal strip
Implementation Method 2
The rinse liquid is transported downwardly by the combined effect of gravity and by the rotating rolls in the direction of the rotation of the rolls
Implementation Method 3
maintaining a laminar flow to prevent liquid loss and contamination
Data Source
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AI summary
This invention relates to a rinsing apparatus for use in a metal strip processing line and to a method of using said rinsing apparatus.