Sectional cooling device for fine adjustment of transverse roll gap of hot-rolled strip

Abstract

The invention provides a subsection cooling device for fine adjustment of a transverse roll gap of a hot-rolled strip. The subsection cooling device comprises a cooling beam group, a connecting pipe, a flow regulating valve and an integrated control system, each cooling beam group comprises two segmented cooling beams; an inner cavity of the segmented cooling beam is divided into a slow cooling area, a rapid cooling area and a basic cooling area; each cooling area comprises three rows of cooling sections which are independent from one another and are arranged in a stepped manner; a plurality of nozzles are arranged in each cooling section; the nozzles arranged in the two cooling sections, symmetrical about the strip steel, in the two subsection cooling beams are communicated to one connecting pipe, the connecting pipes are connected to cooling water supply equipment, and each connecting pipe is provided with one flow control valve; and the flow control valve is electrically connected with the integrated control system. According to the method, multi-section segmented control over cooling water can be achieved, effective regulation and control over the thermal crown of the roller are achieved, and then the problems of strip steel edge thinning and the like are solved.

Description

technical field [0001] The invention relates to the technical field of roll cooling, in particular, to a segmented cooling device for fine adjustment of the transverse roll gap of a hot-rolled strip applied to a hot-rolled strip mill. Background technique [0002] With the continuous expansion of the types of hot-rolled products and the improvement of product quality, the requirements for the shape and size of the strip are getting higher and higher. followed by a sharp increase. On the whole, one is that the cross-sectional shape of the hot-rolled finished strip will have a greater impact on the downstream deep-processed products. Problems such as thin edge reduction and even edge cracking affect the quality index and production efficiency of products to a large extent. [0003] At present, the adjustment methods for solving the regional wave shape widely used in the finishing rolling area are mainly roll bending and roll shifting, but this method cannot adjust the high-o...

AI Technical Summary

Problems solved by technology

[0005] The research of the existing technology mainly focuses on the spray beam structure, the number of nozzles, the angle and the installation method of the segmental cooling. Research on Intelligent Sectional Cooling Control Has Not Been Reported

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