A kind of steel ingot rolling automatic control system and its control method

Abstract

The invention provides a steel ingot rolling automatic control system and a control method of the steel ingot rolling automatic control system. A steel ingot inner tracking picture program, a steel ingot information verifying program, a steel ingot rolling calculation program, a steel ingot rolling set point issuing program, a rolling force deviation detection judgment program, a steel ingot rolling manual confirmation program, a steel ingot information input program, a steel ingot information display program, a steel ingot rolling speed input program and a steel ingot process attention program are respectively and additionally arranged inside a heating furnace, a rolling mill first-stage system and a rolling mill second-stage system. The rolling mill second-stage system calculates the rolling passes and sets technological parameters of each rolling pass according to original data, the rolling mill first-stage system shields rolling force deviation detection and mill load signals, finishing of the passes and the steel ingot rolling passes is affirmed manually, the rolling mill first-stage system judges the type of a plate blank of the next pass, and the rolling method is further determined. According to the steel ingot rolling automatic control system and the control method of the steel ingot rolling automatic control system, an existing automatic control system is utilized, additional arrangement of hardware equipment is not needed, steel ingot rolling can be achieved, the entire system is safe and reliable to operate, the yield of the rolling mill and the quality of products are improved, the class interval between the thickness and the width of a plate is increased, and variety of the products is increased.

Description

technical field [0001] The invention belongs to the field of steel rolling automatic control, in particular to an automatic control system specially used for steel ingot rolling and its control methods. Background technique [0002] With the popularization of nuclear power, the domestic demand for nuclear power steel is also increasing, and the production of nuclear power steel will bring huge economic benefits to enterprises. However, most of the production of nuclear power steel is rolled using single-heavy special steel billets, which are steel ingots. For ordinary slabs (continuous casting slabs), the width and thickness of the head and tail are basically the same. But the steel ingot is different, there is a big difference in the size and specification of the head and the tail of the steel ingot. Since all the process parameters and control programs of the original automatic control system are designed according to rolling ordinary continuous casting slabs, and the ...

AI Technical Summary

Problems solved by technology

Since all the process parameters and control programs of the original automatic control system are designed according to rolling ordinary continuous casting slabs, and the rolling technology and control methods are very mature, but for rolling steel ingots with inconsistent thickness and width at the head and tail The conditions are not yet met, that is, under the condition that the width and thickness of the head and tail of the steel ingot have not yet reached the same level, the entire system cannot recognize and perform normal rolling, so that solving the problem of steel ingot rolling has become an urgent need for the production of nuclear power steel the primary problem to be solved

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