Optimal control system of shape and thickness of steel plate

Abstract

The invention provides an optimal control system of the shape and the thickness of a steel plate, comprising a rolling mill one-stage control and a rolling mill two-stage control for providing a rolling schedule for the rolling mill one-stage control, wherein the rolling mill one-stage control comprises an automatic roll gap control, a data processing module connected with the automatic roll gap control, a finishing pass flattening module for optimizing the plate shape control, a semi-automatic swing roll gap module which is connected with the automatic roll gap control and used for optimizing the plate thickness control and an automatic roll gap control weight and limit value interfering module for adjusting the automatic roll gap control compensation quantity and controlling the limit. By means of the technical scheme of the invention, on the premise that the thickness accuracy is guaranteed, the shape of the heavy-gauge steel plate is improved and particularly the problem of small breaker is greatly improved; meanwhile, the subsequent flattening and cold straightening processes are reduced, the process cost is saved and the economic benefit is considerable; and the quality discrepancy caused by the flatness is reduced and the customer cognition degree is increased.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to a shape and thickness optimization control system of a steel plate. Background technique [0002] At present, the unevenness of the steel plate is the most important factor restricting the rolling of the steel plate, and the unevenness of the steel plate is mainly divided into two categories, one of which is the unevenness of the thick steel plate with small waves and sharp bends at the tail that exceeds the standard or does not meet the requirements. Customer requirements, frequent quality objections, this is a difficult problem in the whole industry, and it is also a deficiency in the existing technology. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a technical solution for the optimization control system of the shape and thickness of the steel plate in view of the deficiencies in the prior art. The sol...

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Problems solved by technology

[0002] At present, the unevenness of the steel plate is the most important factor restricting the rolling of the steel plate, and the unevenness of the steel plate is mainly divided into two categories, one of which is the unevenness of the thick steel plate with small waves and sharp bends at the tail that exceeds the standard or does not meet the requirements. Customer requirements, frequent quality objections, this is a difficult problem in the whole industry, and it is also the deficiency of existing technology

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