Cutting torch for flame cleaning gun

Abstract

The invention discloses a cutting torch for a flame cleaning gun. The cutting torch comprises a connecting piece arranged on the connecting bend of a flame cleaning gun, a mouth core is fixed in the inner cavity of the connecting piece, a fixed cover is sleeved outside the mouth core, the connecting piece is axially provided with an oxygen channel, the oxygen channel axially penetrates through the mouth core, the connecting piece is provided with a gas ring groove and a mixed gas ring groove in a circumferential direction, the gas ring groove is used for being communicated with inflammable gas pipelines of the flame cleaning gun, the mixed gas ring groove is used for being communicated with the inflammable gas and oxygen mixed pipelines of the flame cleaning gun, an injection channel is formed in the gap between the inner circumference of the fixed cover and the outer circumference of the mouth core, a gas hole communicated with the injection channel is arranged on the groove wall of the gas ring groove, and a mixed gas through hole communicated with the injection channel is arranged on the groove wall of the mixed gas ring groove. The cutting torch in the invention has the advantages of simple structure, very high efficiency and good peeling effect when the flame cleaning gun is used for peeling a slab.

Description

technical field [0001] The invention relates to a cutting nozzle, in particular to a cutting nozzle of a flame cleaning gun used on a flame cleaning gun. Background technique [0002] The process of continuous casting of slabs in steel mills is as follows: the molten steel heated to liquid state is firstly packed in the ladle, then pulled by the crane to the top of the tundish, and the molten steel is poured into the tundish. The tundish is the place to hold the molten steel. The molten steel in the tundish enters the mold through the pipeline. The mold is the core component of the continuous casting machine. The mold is the part that cools the liquid steel out of the solid slab. It consists of an internal It is composed of a metal shell that continuously passes cooling water, and this shell that continuously delivers cooling water cools the molten steel in contact with it into a solid state. However, there will be various defects during the forming process of the slab, tha...

AI Technical Summary

Problems solved by technology

However, the cost of mechanical peeling of slabs is high and the efficiency is low, which is not conducive to large-scale industrial production. It can only solve the problem of oxidized iron scale on the surface of steel plates, and it cannot be finished according to the defects of slabs at any time.

However, the current cleaning method of flame cleaning is unreasonable, and the peeling and cleaning time of a slab by the flame cleaning gun is very long and the efficiency is very low, which cannot meet the requirements of the defect inspection of the steel mill, and the peeled skin is very thick, causing a lot of damage. waste of material

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