A device and method for online cleaning of continuous casting billets

Abstract

The invention relates to an on-line cleaning device and method for continuous casting slab cutting tumors, which belong to the technical field of continuous casting slab finishing equipment and methods, and is used for online cleaning of continuous casting slab flame cutting and cutting tumors. The technical solution is: it includes a high-pressure nitrogen purging part and a mechanical cleaning part, the upper end of the high-pressure purging pipe is connected to the high-pressure nitrogen pipeline, and the lower end of the high-pressure purging pipe is connected to the blowing nozzle, which is located below the continuous casting slab; The pressing arm is located under the billet discharge roller table of the cut-to-length continuous casting slab. The front end of the pressing arm is equipped with a pressing guide wheel. The pressing arm is connected with the swing cutting arm through an adjusting screw. There is a lever in the middle of the swing cutting arm Shaft, the rear end of the swing cutting arm is equipped with a cutting knife, the cutting knife is opposite to the lower surface of the continuous casting slab to length. The present invention can respectively remove the front-end and rear-end cuts of the continuous casting slab, and quickly and effectively clean the cuts of the two cut ends of the continuous casting slab while the continuous casting slab is being cut, with high efficiency and clean and thorough cutting , the cleaning degree reaches 100%.

Description

technical field [0001] The invention relates to an on-line cleaning device and method for continuous casting billet flame cutting and nodules, and belongs to the technical field of continuous casting billet finishing equipment and method. Background technique [0002] When the continuous casting billet is cut to length by flame, the liquid molten steel will be pasted on the lower edge of the continuous casting billet incision, and a cut tumor will be formed on the lower edge of the two cutting sections. For special steel continuous casting billets, especially large-section Ni-containing alloy steel continuous casting billets, due to the characteristics of steel grades, the fluidity of liquid molten steel is poor, and the cut nodules will be large, which can reach 5~10mm high and 10~30mm wide. [0003] Due to the existence of the cut nodules, they will be firmly adhered to the lower edge and lower surface of the end of the billet after cooling. During the subsequent rolling p...

AI Technical Summary

Problems solved by technology

Cleaning in the cold state generally adopts manual cleaning with a flat shovel, cleaning with a wind shovel, and cleaning of mechanical equipment with power. These methods are carried out in a cold state, requiring special procedures and venues, and turning the continuous casting slab, which is time-consuming Laborious and costly

The other is the blowing method, which uses high-pressure nitrogen to blow online when the continuous casting slab is released. This method is simple and convenient, low in cost and high in efficiency, but the actual use effect is not good, and it can only achieve partial cleaning, which is difficult Both cutting ends are cleaned up, which cannot meet the needs

[0005] So far, the above-mentioned traditional method has been used to clean the continuous casting billets, which is not only inefficient, but also not clean, which will affect the quality of the products after the continuous casting billets enter the rolling process, which has become a difficult problem restricting the production of high-quality products. to be resolved

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