Slab matching method for multiple hot rolling lines to improve material resource utilization of a steel plant
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United States of America Patent
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Aug 15, 2017
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app pub date -
Dec 23, 2014
filing date -
Oct 31, 2014
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Abstract
Slab matching method for multiple hot rolling lines comprises grouping the slabs and orders to obtain slab-order groups; based on a criterion of slab-order specification matching, determining a matching condition between the slab and the order within each of slab-order groups; quantitatively describing a mis-order slab matching problem; matching the mis-order slabs to the orders; quantitatively describing a slab re-matching problem; adjusting the matching relationships of all the slabs and the orders to form a final scheme of slab matching to be distributed to the multiple hot rolling lines to execute, and the slab matching method is completed. The present invention improves the utilization of the mis-order slabs while reducing the waste of energy caused by repeated steelmaking, reducing the consumption of the material and lowers the amount of left material and stored material and saves production cost and storage cost for the plant.
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