Steel Sheet Water Deflection Layout for Uniform Cooling Water Removal
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Solution Overview
Problem
Existing methods for removing cooling water from hot rolling steel sheets after finish rolling suffer from inefficiencies, including varying collision strength across the sheet width, leading to water leakage and the need for excessive water flow, and often compromise cooling performance by requiring space for water removing nozzles that cannot be used for cooling.
Innovation Solution
A water removing apparatus with separate nozzles for intercepting and pushing out cooling water, positioned on the lateral sides of the steel sheet, allowing for efficient water removal without interfering with the cooling process, using a combination of near and far water removal nozzles to cover the entire width and ensure continuous removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If water removing nozzles are placed above the steel sheet to jet water-removing water onto the upper surface, then water removal is performed, but the collision strength of water-removing water varies in the width direction, resulting in poor water removal efficiency and water leakage on the opposite side
Solution Approach 1:
The patent divides the water removal function into multiple nozzles positioned at different locations (both sides in width direction and/or multiple positions in conveyance direction). Each nozzle handles a specific region, ensuring uniform collision strength across the entire steel sheet width without requiring excessive water flow from single nozzles.
Solution Approach 2:
The patent transitions from positioning nozzles only above the steel sheet to positioning them on the lateral sides in the width direction and/or at multiple positions in the conveyance direction. This spatial reconfiguration enables water-removing water to be jetted from optimal angles, improving collision strength distribution and reducing total water consumption.
2Productivity
If water removing nozzles are positioned above the steel sheet in the cooling area, then water removal is achieved, but the installation space for cooling nozzles is reduced, compromising cooling performance
Solution Approach 1:
The patent separates water removal nozzles from cooling nozzles by positioning water removal nozzles on lateral sides in the width direction and/or at multiple positions in the conveyance direction. This spatial segmentation allows both cooling and water removal functions to operate simultaneously without interfering with each other's performance.
Solution Approach 2:
The patent repositions water removing nozzles from the vertical space above the steel sheet to lateral positions in the width direction and/or distributed positions in the conveyance direction. This dimensional change frees up the cooling area for optimal cooling nozzle installation while maintaining effective water removal capability.
3Productivity
If water removing nozzles are positioned on the lateral side to jet water-removing water onto the upper surface, then water removal is performed, but the nozzles are far from the water to be removed, reducing collision strength and requiring large water flow
Solution Approach 1:
The patent segments the water removal task across multiple nozzles positioned at strategic locations (lateral sides in width direction and/or multiple positions in conveyance direction). This segmentation allows each nozzle to target specific regions effectively, maintaining high collision strength with reduced individual and total water flow requirements.
Solution Approach 2:
The patent positions nozzles locally at optimal locations on lateral sides and/or at multiple conveyance directions to maximize collision strength with cooling water in each specific region. This localized positioning ensures efficient water removal without requiring excessive water flow density.
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 apparatus effectively removes cooling water with improved efficiency and reduced water flow requirements, maintaining high cooling performance and flexibility in installation, even with large water flow densities, while ensuring uniform cooling of the steel sheet.
Implementation Method 1
water removing nozzles that jet water-removing water onto the upper surface of a hot rolling steel sheet to remove cooling water
Data Source
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AI summary
A plurality of water removing nozzles of a water removing apparatus comprise one or more of a single far water removing nozzle and a far water removing nozzle group. The single far water removing nozzle forms a far end water removal single area that does not include one end but includes the other end in the width direction of a steel sheet conveyance plane. The far water removing nozzle group forms the far end water removal single area and one or more inner water removal single areas that do not include either end in the width direction of the steel sheet conveyance plane, in such a manner that the far end water removal single area and the one or more inner water removal single areas are aligned in order from the one end side to the other end side while overlapping with each other in the width direction of the steel sheet conveyance plane and aligned in order from the upstream side to the downstream side without overlapping in the conveyance direction.