Refining furnace oxygen burning gun with anti-temper and anti-explosion functions and application method thereof

Abstract

The invention discloses an efficient refining furnace oxygen burning gun with anti-temper and anti-explosion functions and an application method thereof. The efficient refining furnace oxygen burninggun includes a gun barrel body and a nozzle at the end of the gun barrel body, wherein the gun barrel body is composed of a multi-layer central line collinear sleeving; the sleeving comprises a compressed air pipe, an oxygen pipe, a converter gas pipe, a water pipe and an external pipe in sequence from inside to outside; and three long open fire pipes with triangular distribution are arranged in aclamping chamber between the oxygen pipe and the converter gas pipe. Compared with the prior art, the efficient refining furnace oxygen burning gun with anti-temper and anti-explosion functions and the application method thereof can avoid the phenomenons of tempering and explosion of the oxygen burning gun at the moment of extinguishing; the situation that the gas emitted by the oxygen burning gun can be ignited in time is ensured, so that the explosion at the moment of ignition is avoided; and double combustion of the gas is carried out by oxygen and compressed air, so that the preheating efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgy, in particular to a high-efficiency refining furnace oxygen burner with anti-tempering and anti-combustion functions and a use method thereof. Background technique [0002] The oxygen burner of the refining furnace is mainly used for blowing the scrap steel in the refining furnace. The nozzle of the oxygen burner is installed at the end of the wall of the oxygen burner. The periphery of the nozzle is a water-cooled structure, and the end of the nozzle is cooled by reasonable cooling water. [0003] Sinosteel Anshan Thermal Energy Research Institute Co., Ltd. applied for a Chinese utility model patent on January 27, 2015. The patent discloses a device for melting residual iron and slag in a ladle or iron ladle, which consists of a barrel body and a Oxygen combustion gun composed of oxygen lance nozzle, the oxygen lance nozzle is fixed on the front end of the barrel body, and the b...

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Problems solved by technology

[0006] The above-mentioned device generates high heat through combustion of gas and oxygen, which can greatly increase the amount of steel scrap loaded and reduce the cost of steelmaking; high furnace temperature, fast slag melting, short steelmaking time, increased steel output, and improved steel quality; but the device Combustion is supported by a single pure oxygen, sometimes the theoretical combustion temperature of pure oxygen combustion will be higher than the temperature required by the process, which cannot meet the production needs; in addition, the device also has the risk of flashback and explosion

[0007] In the prior art, only by arranging special personnel to closely monitor the oxygen pressure to reduce the probability of backfire and explosion in the oxygen burner, there is no substantive solution to prevent backfire and explosion. This problem has always plagued the technology in this field Therefore, it is necessary to invent a high-efficiency refining furnace oxygen burner with anti-tempering and anti-explosion functions and its use method

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