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

An explosion-proof and oxygen-burning gun technology, which is applied in the field of iron and steel metallurgy, can solve the problems of increasing the amount of scrap steel loaded, no substantive solutions for anti-tempering and anti-burning, and tempering and explosion, so as to improve the preheating efficiency effect

Pending Publication Date: 2019-09-06
山东崇盛冶金氧枪有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Example 1 A high-efficiency refining furnace oxygen burner with anti-tempering and anti-combustion functions

[0040] Such as figure 1 with figure 2 Commonly shown, the present invention provides a kind of high-efficiency refining furnace oxygen combustion gun with anti-tempering and anti-combustion function. Composed of five-layer casings, the centerlines of the five-layer casings are collinear, and the five-layer casings are compressed air pipes 6, oxygen pipes 7, converter gas pipes 8, water pipes 4 and outer pipes 3 from the inside to the outside. The pipes are reinforced with an appropriate number of evenly arranged ribs; the sandwich chamber between the oxygen pipe 7 and the converter gas pipe 8 is provided with three permanent flame pipes 5 distributed in an equilateral triangle.

[0041] Such as figure 2 , Figure 5 with Image 6Commonly shown, the nozzle includes a cooling nozzle 1 and a gas nozzle 2, the cooling nozzle 1 is fixed on the end of the outer...

Embodiment 2

[0048] Embodiment 2 A method of using a high-efficiency refining furnace oxygen burner with anti-tempering and anti-explosion functions

[0049] When the oxygen burner is used in an 80T refining furnace, the specific use process is as follows:

[0050] Step 1, preparation work, the permanent flame tube 5 in the oxygen burner is in a continuous lighting state; the compressed air tube 6 is in a continuous jetting state, and the compressed air passes through the end of the compressed air tube 6 and passes through the gas nozzle 2 and the cooling nozzle in turn 1 after spraying;

[0051] Step 2: Open the water inlet and outlet valves of the cooling water, the flow rate is 280t / h, the cooling water with a cooling water pressure ≥ 1.2Mpa flows from the water inlet elbow 24 through the water inlet connection 12, and then enters the inner cavity of the water pipe 4, the inner cavity The middle cooling water flows back after passing through the cooling nozzle 1, and the water is disch...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/22F23D14/34F23D14/82F23D14/78F23D14/46C21C5/46
CPCF23D14/22F23D14/34F23D14/82F23D14/78F23D14/46C21C5/4606C21C2005/4626
Inventor 杨龙姜在彬谭兴伟李洽蔡翠云王帅威
Owner 山东崇盛冶金氧枪有限公司
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