A control method for equal-gap steel rolling

Abstract

The invention relates to a method for controlling equal-gap steel rolling, belonging to the technical field of metallurgy. In the method, a computer control system is used. The method comprises the following control steps of: judging a current steel extraction heating furnace and a next steel extractable heating furnace; reading the action time of a steel extraction machine transmitted by a monitoring sensor of the next steel extractable steel heating furnace as well as a roller table running speed and a practical time interval between the reach of two front adjacent plate blanks to a rollingmill transmitted by a speed senor and a time sensor on a roller table; retrieving a store formula and calculating corresponding waiting time of the next steel extractable heating furnace; when the waiting time is reached, controlling the heating furnace to extract steel; and calculating the next steel extraction waiting time every time steel extraction is finished and determining a next steel extraction heating furnace according to a minimum waiting time principle. Due to the adoption of the method, the tendency to equal-interval rolling is automatically realized by dynamic adjustment, self-adaptation to various complex environments can be realized, the organized production efficiency of a steel rolling line is increased, the stability of the rolling tempo is improved, the energy consumption is lowered, and the problem of the influence on coiled sheet quality caused by unreasonable production organization is solved.

Description

technical field [0001] The invention relates to a steel rolling control method, in particular to an equal-gap steel rolling control method, and belongs to the technical field of metallurgy. Background technique [0002] According to the applicant's understanding, the current hot rolling production is based on the operator's experience in manually drawing steel to control the production rhythm. This kind of manual steel extraction has the following problems: the production rhythm of the rolling line is sometimes fast and sometimes slow, causing the rolling rhythm of the rolling line to be unstable and directly affecting the product quality; and there is also the phenomenon of equipment idling waiting for the strip, resulting in equipment loss and wasting energy. For this reason, it is necessary to reduce the waiting time of the rolling mill, stabilize the rolling rhythm, control the time of drawing steel and loading steel in the heating furnace, so that the slab after being r...

AI Technical Summary

Problems solved by technology

This kind of manual steel extraction has the following problems: the production rhythm of the rolling line is fast and sometimes slow, causing the rolling rhythm of the rolling line to be unstable and directly affecting the product quality; and there is also the phenomenon that the equipment is idling and waiting for the strip, resulting in equipment loss and wasting energy.

Its characteristic is that the length of the tail of the bar is divided into four categories, which are processed separately to avoid flickering and collision with the previous strip. However, in actual rolling, there are many factors that affect the tempo, and the method of classifying the length of the tail of the bar is limited. Unable to achieve continuous automatic regulation and optimization of production takt

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