A method for removing nodules on the surface of the reel in the coiling furnace

Abstract

The invention relates to a method for removing nodules on the surface of a reel in a coiling furnace. A brush is installed on the top of the lifting guide plate of the roller trolley, and the bristles of the brush are made of high-temperature-resistant steel wire; during the standby time of the process, the roller trolley enters the coiling furnace, and the lifting guide plate with the brush is raised until the bristles touch the surface of the reel. Turn on the reel to rotate to clean the surface of the reel. Now the high temperature resistant brush is used to remove the oxidized iron scale on the surface of the reel by rolling brush, which can reduce the amount of decontraction by 5%. At the same time, the present invention can also reduce the manual grinding process of the coiling furnace due to nodules on the surface of the reel due to shutdown of the furnace, cooling down and opening of the cover, and the energy saving effect is obvious. Guarantee the rhythm of coiling and rolling production, reduce the amount of out-of-contract, and improve the yield and hit rate of steel plates.

Description

technical field [0001] The invention relates to a method for removing nodules on the surface of a reel in a coiling furnace, specifically a method for removing nodules on the surface of a reel in a coiling furnace on a coil rolling mill production line. A method for cleaning the oxide scale nodules adhered to the surface of the reel during rotation. Background technique [0002] Steckel mills consist of front and rear coiling furnaces and rolling mills, and are designed for the production of thin-gauge coils. Its characteristics are more "compact, continuous and economical" than the hot rolling line. [0003] Steckel rolling mill is because when rolling long thin gauge steel plate, generally thin gauge steel plate refers to the rolling piece with thickness ≤ 10mm, the temperature drop of the steel plate is too large due to thinness, which is lower than the normal production temperature, the shape of the plate is difficult to control, and the rolling force is also low. will...

AI Technical Summary

Problems solved by technology

Because the nodules on the surface of the reel are constantly produced during the rolling process, the coiling furnace cannot enter the furnace for processing at a high temperature of 950 ° C. It must be shut down and manually repaired. It generally takes more than 3 days, and the production rhythm is interrupted. Unfavorable factors such as high energy consumption, low steel plate yield, and high follow-up finishing costs have become production and quality bottlenecks for manufacturers with steckel rolling mill production lines.

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