Flame descaling block for reducing heat distortion

Abstract

The invention relates to a flame cleaning block for reducing heat distortion, comprising a head (110) arranged on the manifold with a gas distributed part, an upper part (120) with a plurality of vents and a lower part (130), and a seat (140); wherein, the front of the vent towards the head (110) is combined with the surface of the steel billet at an acute angle, and gives out the provided mixture gas and high pressure oxygen via the head (110) to remove the encrustation on the surface of the steel billet; the seat (140) adhered to the surface of the steel billet is combined with the half lower part of the lower part (130) and the bottom of the head (110); an outburst part (141) extended outside is arranged on one side or two sides of the seat (140), and an insert part (142) is arranged on the upper part or the lower part of the outburst part (141). The flame cleaning block has the advantages of easy maintenance, convenient replacement, high service efficiency and low cost since the flame cleaning block can not only remove the encrustation on the surface of the steel billet effectively, but also can be used instead of the prior flame cleaning block.

Description

technical field [0001] The present invention relates to a flame cleaning block (block) for reducing thermal deformation, and in more detail, relates to a method for preventing flame damage caused by thermal deformation during preheating of a slab (slab) and thermal deformation during scarfing operations. Scarfing block is a scarfing block that can improve durability and use efficiency to reduce thermal deformation. Background technique [0002] Under normal circumstances, foreign matter such as oxidized scale will form on the surface of steel billets produced by ironworks and steel factories. This scale not only reduces the production quality of the produced steel billets, but also reduces the operating efficiency of subsequent projects. Therefore, as an improvement plan, use the mixed gas of oxygen and gas to preheat and melt the surface of the billet, increase the concentration of the above mixed gas, mix with oxygen pressure of 1.5bar and gas pressure of 0.25bar, and flus...

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a flame cleaning block for reducing thermal deformation that can solve the above-mentioned existing problems. Protrusions and insertion parts are formed on one or both sides of the base of the flame cleaning block, and multiple connections are made. When a flame cleaning block is used, the protruding part and the insertion part are connected and inserted to reduce the shrinkage and expansion of the gap in the thermal deformation process, and the phenomenon of molten debris flowing into the flame cleaning block is reduced to a minimum. lowest

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