Method for preventing adhesion of continuous casting sheet billets

Abstract

The invention belongs to the technical field of continuous casting sheet billets and relates to a method for preventing adhesion of the continuous casting sheet billets. The method is suitable for preventing the adhesion of the continuous casting sheet billets made of low-carbon steel or ultra-low carbon steel. When steel push is finished, the distance between the edge portions of guide rollers and the sheet billet steel side at the position of a plate stacking platform is 5-10mm. The guide rollers are double-row guide rollers. The space between the guide rollers is 100-120mm, the diameter of each of the guide rollers is 230-250mm, and the length is 400-420mm. The elevation of each of the guide rollers is higher than that of the plate stacking platform, and the height difference is 3-5mm. Five groups of guide rollers are arranged at the position of a roller way supporting beam of the plate stacking platform, and the spacing between groups of the guide rollers is 1270-1300mm. The method has the advantages that the rolling friction distance between the sheet billets and a roller way is long, and the steel push process is stable; by shortening the steel push process and reducing slide friction distance between an upper billet and a lower billet on the plate stacking platform, a steel pushing machine is long in service life, and maintenance cost of the steel pushing machine is reduced.

Description

technical field [0001] The invention belongs to the technical field of continuous casting slabs and relates to a method for preventing continuous casting slabs from sticking, which is suitable for preventing continuous casting slabs of low carbon steel or ultra-low carbon steel from sticking. Background technique [0002] The modern slab continuous casting machine has a high operating rate, which is required for direct loading. Many casting machine discharge roller tables are connected with the feeding roller table of the hot rolling heating furnace, but due to the quality of the slab or the rolling rhythm and the discharge The rhythm does not match, and the proportion of hot charging or direct loading in most steel plants is very low, so a large number of high-temperature slabs need to be pushed to the pallet platform by a steel pusher through the roller table and guide rollers, and then hoisted by the crane to the stack for cold storage . The current guide rollers are rel...

AI Technical Summary

Problems solved by technology

The current guide rollers are relatively short and the diameter of the rollers is relatively small, and the roller table support beam will bend after a long period of use, resulting in unstable force on the slab when it is pushed by the pusher, and the sliding friction distance between the slab and the guide roller is too long , generally about 150mm. In addition, the relative position between the stacking platform and the steel pushing machine is unreasonable at the end of the stroke. When the steel pushing ends, the distance between the edge of the guide roller and the pushing steel side of the slab at the stacking platform is generally greater than 50mm, and the pushed slab is subject to sliding friction. If the distance is too long, the above factors will cause the slabs to stick after they are off-line and stacked.

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