A method for determining the steel loading time and preventing the hot-delivery billets from damaging the furnace equipment

Abstract

The invention provides a method for determining the steel loading time and preventing the damage of the equipment in front of the furnace by the hot billet, belonging to the technical field of metallurgical hot rolling. The method firstly predicts the release time of the first billet before the furnace, and then predicts the time required for the furnace tail to meet the steel loading vacancy, and compares the time required for the billet to be transported to the positioning roller table and positioned. When the latter two are equal, the billet transport and Positioning command, and finally start the steel loading program. By accurately predicting the release time of the billet and accurately controlling the time for the hot charging billet to reach the positioning roller table, the purpose of minimizing the residence time in front of the furnace is realized, thereby reducing the thermal damage of the high-temperature billet to the key equipment in front of the furnace, and prolonging the maintenance time and use of the equipment. life, while avoiding affecting the charging rhythm and production output. The invention has strong applicability, low cost and obvious effect, not only reduces equipment maintenance cost, but also reduces equipment failure rate, ensures continuous and stable production rhythm, and improves output and production efficiency.

Description

technical field [0001] The invention relates to the technical field of metallurgical hot rolling, in particular to a method for determining the steel loading time and preventing the hot-delivery billet from damaging the equipment in front of the furnace. Background technique [0002] In the metallurgical industry, especially the steel hot rolling production line, continuous casting slab hot delivery and hot charging technology is a major energy-saving technology. The higher the hot charging rate, the lower the energy consumption. At present, many production lines have reached more than 80%. In actual production, the high-temperature hot-feed blank staying on the roller table will radiate high temperature to the surrounding equipment (such as roller table, motor, laser detector, thermometer, video surveillance, etc.), once the time is too long, it will affect these high-setting functions. Use effect or lifespan. [0003] In the front equipment of the heating furnace, a lot o...

AI Technical Summary

Problems solved by technology

However, method one cannot be applied to the positioning roller table in front of the furnace, because once the billet is transported to the front of the furnace, it needs to control the positioning according to the layout of the billet in the furnace, and it cannot swing, otherwise it needs to be repositioned; method two fails to solve the problem fundamentally , not only increases the equipment cost, but also increases the amount of equipment maintenance

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