Rolling system and rolling method

Abstract

The invention discloses a rolling system which comprises a universal rolling mill and a lubricating device, wherein the lubricating device provides lubricants for a rolled piece (5) in the universal rolling mill. The rolling system further comprises an anti-burning device used for preventing lubricating oil from burning, wherein the anti-burning device comprises a compressed air source (4), an air duct (2) and a nozzle (3), the air duct is connected with the compressed air source, and the nozzle is installed on the air duct and located above the rolled piece (5) entering the universal rolling mill to spray airflow onto the upper surface of the rolled piece. The invention further discloses a rolling method for providing the lubricants for the rolled piece and spraying the airflow onto the upper surface of the rolled piece to blow away lubricants in an upper enterocoelia (7) of the rolled piece. According to the rolling system and the rolling method, the lubricants in the upper enterocoelia (7) of the rolled piece can be blown away to prevent the lubricating oil in the upper enterocoelia (7) of the rolled piece from burning, safe operation of the rolling mill is guaranteed, quality of derailed steel rails is guaranteed, and smoke pollution is reduced.

Description

technical field [0001] The invention relates to the field of rail rolling, in particular to a rolling system and a rolling method. Background technique [0002] In the rail universal rolling process, in order to improve the surface quality of the rail, increase the life of the roll and reduce the production cost, lubricated rolling technology is introduced into the rail rolling. However, this lubricated rolling technology also has some defects while bringing economic benefits in actual production. [0003] Since the lubricating medium used in lubricating rolling is lubricating oil and water, the lubricating oil and water are mixed and sprayed onto the lubricating surface from the nozzle of the lubricating system. In production, since a large amount of cooling water is accumulated in the abdominal cavity of the rolled piece, the lubricating oil floats on the surface of the water in the upper abdominal cavity of the rolled piece during the rolling process, and the temperature...

AI Technical Summary

Problems solved by technology

In production, since a large amount of cooling water is accumulated in the abdominal cavity of the rolled piece, the lubricating oil floats on the surface of the water in the upper abdominal cavity of the rolled piece during the rolling process, and the temperature of the rolled piece can be as high as 1000°C , so that the water in the upper abdominal cavity of rolled pieces such as steel rails, especially the water in the mixture of lubricating oil and water evaporates, which will cause the concentration of lubricating oil floating on the water to increase and burn in the upper abdominal cavity of the rolled piece , thus causing a series of problems, such as: the local temperature rise of the rolling mill leads to the reduction of the performance and life of the rolling mill; the burning open flame causes the surrounding cables to burn, and the equipment fails to affect the production; when the lubricating oil burns, a large amount of smoke and smell are produced, polluting the environment; The local temperature rise of the rolled piece at the open flame causes adverse changes in the internal structure of the rolled piece and affects the quality of the finished rail

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