Casting-rolling connection method for direct rolling of square and rectangular steel billets in conveying process

Abstract

The invention discloses a conveying process casting-rolling joining method used for directly rolling rectangular billets and belongs to the technical field of long sectional material direct rolling processes. The conveying process casting-rolling joining method used for directly rolling rectangular billets involves conveying joining of the whole process from cutting off and parallel flow of a continuous casting machine to a rolling mill of the high-temperature continuous casting billets, and achieves turning conveying from the continuous casting machine to a rolling line. A rapid conveying straight slope roller way, an arc lifting roller way and a uniform-speed straight delivery roller way are included, an induction heating device is arranged at the tail end of the straight delivery roller way, and heat preservation covers are arranged above the arc lifting roller way and the uniform-speed straight delivery roller way. A temperature measurement and alarm device and a steel splitting guide plate are arranged at the inlet of the rapid roller way. When the temperature meets the direct rolling process range, steel billets smoothly pass through the rapid roller way to be rolled, otherwise, the rapid roller way system gives an alarm, and steel billets not meeting the process are discharged from the line to be treated. The method has the advantages that the problems that the distance between the continuous casting machine and the rolling mill is long and the space orientation is poor are solved, the production efficiency of the direct rolling process is improved, the conveying time of the steel billets from the continuous casting machine to the rolling mill is greatly shortened, and the production requirement of the direct rolling process of the steel billets is met.

Description

technical field [0001] The invention belongs to the technical field of direct rolling of long profiles, and in particular provides a casting-rolling connection method for direct rolling of square and rectangular billets in the conveying process. Background technique [0002] The direct rolling technology of steel billet refers to the whole process technology in which the steel billet is directly cut off by the continuous casting machine without being heated by the heating furnace, and then sent to the rolling mill for rolling. During the transportation process, appropriate edge induction heating can be carried out as required. This technology can greatly reduce energy consumption, reduce production costs, and the economic and social benefits are very significant. [0003] However, due to the characteristics of the traditional long-flow process, the distance between the continuous casting machine and the rolling mill of most iron and steel enterprises is relatively long, and ...

AI Technical Summary

Problems solved by technology

It solves various outstanding problems encountered in the process of direct rolling production by traditional long section enterprises, including the long distance between the continuous casting machine and the rolling mill, and the space is arranged at an angle, and the temperature drop of the steel billet during the conveying process is too fast, so that the problem cannot be realized Rapid unloading of steel billets, etc.

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