Method for determining steel loading time and preventing hot-fed billet from damaging casthouse equipment

Abstract

The invention provides a method for determining steel loading time and preventing a hot-fed billet from damaging casthouse equipment, and belongs to the technical field of metallurgical hot rolling. The method comprises the following steps that firstly, the tapping time of a casthouse first billet is predicted, then the time required by a furnace tail to meet a steel loading vacancy is predicted,the time required by billet transportation to a positioning roller way is compared with the time required by billet positioning, an billet conveying and positioning instruction is issued when the later two are equal, and finally a steel loading program is started. By accurately predicting the billet tapping time, the time for the hot-charging continuous casting billet to reach the positioning roller way is accurately controlled, and the purpose of shortening the casthouse retention time as much as possible is achieved, so that the thermal damage of high-temperature billets to casthouse key equipment is reduced, the equipment overhaul time is prolonged, the service life is prolonged, and meanwhile the influence on the loading rhythm and the production yield is avoided. According to the method, the applicability is high, the cost is low, the effect is obvious, the equipment maintenance cost is reduced, the equipment failure rate is reduced, the continuous and stable production rhythm isguaranteed, and the yield and the production efficiency are improved.

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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