Efficient waste heat recovery method and system for high-temperature solid bulk materials in ferrous metallurgy industry

By constructing a black box model to dynamically match the heat exchange medium, the problem of low waste heat recovery efficiency of high-temperature solid bulk materials is solved, realizing efficient waste heat recovery and energy utilization, adapting to high-temperature bulk materials of different forms and temperatures, and reducing production costs.

CN121025854AInactive Publication Date: 2025-11-28PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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Patent Information

Application Number
CN202511092056.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-05
Publication Date
2025-11-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing high-temperature solid bulk material waste heat recovery technologies cannot adapt to high-temperature bulk materials of different shapes and temperatures, resulting in low heat exchange efficiency and energy waste. Furthermore, traditional methods suffer from irreversible energy loss and high self-consumption of electricity.

Method used

By constructing a black-box model based on correlation analysis and neural network model, the morphology, temperature, mass and flow information of heat exchange medium and high-temperature solid bulk material are dynamically matched. Combined with deep reinforcement learning, the physical parameters of heat exchange medium are optimized to achieve efficient waste heat recovery.

Benefits of technology

It significantly improves waste heat recovery efficiency, adapts to a wide temperature range of 300-1200℃ and a particle size range of 0.05-50mm, reduces energy waste, lowers production costs, and flexibly responds to different bulk material characteristics.

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Abstract

The invention discloses an efficient waste heat recovery method for high-temperature solid bulk materials in the ferrous metallurgy industry, which belongs to the technical field of cold rolling and comprises the following steps: acquiring form information, temperature information, quality information and flow information of different types of high-temperature solid bulk materials; based on the form information, the temperature information, the quality information and the flow information of the different types of high-temperature solid bulk materials, matching of heat exchange media is dynamically conducted, and physical parameters of the matched heat exchange media are determined; based on dynamic media and physical parameters matched with different types of high-temperature solid bulk materials, heat recovery of different purposes of the high-temperature solid bulk materials is carried out; by the adoption of the method, the waste heat recovery efficiency is remarkably improved, and the method is suitable for the wide temperature range of 100-1600 DEG C and the particle size range of 0.05-50 mm; energy waste is reduced, and the ferrous metallurgy production cost is reduced; and different bulk material characteristics can be flexibly handled.
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