Autoignition dual ring fast cutting torch

Abstract

The invention relates to an autoignition dual ring fast cutting torch, which consists of a PLC control unit A, a fuel gas input unit B, an oxygen input unit C, a water circulation unit D, and an autoignition fast cutting unit E. The cutting torch has the advantages of igniting and cutting during a working stroke, stopping gas and quenching during a noncutting stroke and the like because of the functions of autoignition and water circulation cooling. The autoignition dual ring fast cutting torch further reduces consumption of fuel gas and oxygen and greatly improves the service life of cutting heads; and cutting nozzles can be replaced during the noncutting stroke namely quenching so that the cutting torch has high safety. The technical performance of the cutting torch can exceed the national standard, industry standard and process specification requirements of users. The autoignition dual ring fast cutting torch has over 98 percent of cut-to-length billet yield, saves 35 to 45 percent of cutting oxygen and 55 to 75 percent of fuel gas, and reduces slits from 8 to 10 mm to 2 to 2.5 mm. The autoignition dual ring fast cutting torch is ideal equipment for cutting billets of steel rolling lines of continuous casting machines of steel mills to length and has better popularization and application value. The autoignition dual ring fast cutting torch is suitable for industries such as metallurgy, shipbuilding, petroleum, chemical industry, metal structure and the like, and is particularly used for fast and continuously cutting metal materials with temperature(less than or equal to 950 DEG C).

Description

technical field [0001] The invention belongs to the technical field of metal cutting, in particular to a quick cutting device. Background technique [0002] Before the 1980s, metal cutting at home and abroad generally adopted: oxygen-acetylene-cutting torch and flame cutting technology. However, acetylene gas has the disadvantages of high manufacturing cost, complex process, environmental pollution, easy tempering, easy explosion, and poor safety. Therefore, in recent years, foreign technologically developed countries have accelerated the development, promotion and application of high-efficiency, energy-saving, environmentally friendly, and safe cutting gases and their synergists, and at the same time accelerated the development of new, fast cutting torches. development and application. [0003] At present, in the cutting technology market at home and abroad, the oxygen-acetylene-cutting torch flame cutting technology has begun to be phased out in a planned and step-by-ste...

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Problems solved by technology

However, there are generally problems of high cost, complicated technology and difficult promotion

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