Rolling Line Energy Control via Parameter Optimization
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Solution Overview
Problem
Energy-saving control devices for rolling lines often fail to ensure product quality when adjusting target temperatures, leading to wasted energy and costs.
Innovation Solution
An energy-saving control device that includes an energy consumption estimating unit and an energy consumption optimizing unit, which calculate and minimize energy consumption by adjusting rolling conditions other than target temperatures, ensuring product quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the target temperature of the material is changed to reduce energy consumption, then energy consumption is reduced, but the quality of the product may deteriorate
Solution Approach 1:
The patent changes rolling conditions parameters (such as rolling speed, pass schedule, and deformation amount) instead of changing the target temperature, thereby reducing energy consumption while maintaining product quality. The energy consumption optimizing unit adjusts these parameters to find the optimal balance between energy efficiency and product quality.
Solution Approach 2:
The patent segments the rolling process into multiple passes with different rolling conditions. By optimizing each pass individually (adjusting rolling speed, draft, and other parameters), the system reduces overall energy consumption while ensuring the final product meets quality requirements. This is evident in the energy consumption optimizing unit that adjusts rolling conditions for each stand separately.
2Use of energy by moving object
If rolling conditions are optimized to reduce energy consumption, then energy efficiency is improved, but the complexity of the control system increases
Solution Approach 1:
The energy consumption optimizing unit automatically adjusts rolling conditions based on energy consumption calculations without requiring manual intervention. The system self-optimizes by comparing calculated energy consumption with target values and autonomously modifying rolling parameters, thereby reducing energy consumption while managing control complexity through automation.
Solution Approach 2:
The patent implements a feedback mechanism where the energy consumption estimating unit calculates energy consumption based on current rolling conditions, and the energy consumption optimizing unit uses this information to adjust rolling conditions. This closed-loop feedback system continuously optimizes energy consumption while maintaining product quality, managing control complexity through systematic feedback control.
Data Source
AI summary
An energy-saving control device for a rolling line, the energy-saving control device capable of finding rolling conditions for minimizing energy consumption for the rolling line while ensuring a quality of a product. The energy-saving control device for a rolling line includes: an energy consumption estimating unit that calculates energy consumption for the rolling line based on rolling conditions for the rolling line; and an energy consumption optimizing unit that changes a rolling condition other than a target temperature of a material to be rolled, as a manipulation item so that the energy consumption calculated by the energy consumption estimating unit is reduced while a quality of a product formed by rolling the material to be rolled is ensured.