Equipment and method for electric arc furnace steelmaking by using oxygen combustion guns

An oxygen burner and electric arc furnace technology, which is applied in the field of electric arc furnace steelmaking, can solve the problems of limited heat energy and insufficient metallurgical effect

Pending Publication Date: 2020-07-07
江苏必瑞驰科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned spray guns or burner electric arc furnaces are all auxiliary heating devices, because the heat energy provided...

Method used

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  • Equipment and method for electric arc furnace steelmaking by using oxygen combustion guns
  • Equipment and method for electric arc furnace steelmaking by using oxygen combustion guns
  • Equipment and method for electric arc furnace steelmaking by using oxygen combustion guns

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Embodiment 1

[0035] This invention is based on the aforementioned content of the invention, with a 100-ton electric arc furnace with three electrodes as the main equipment, using gas as the energy medium for implementation, wherein the 100-ton electric arc furnace platform 1 is symmetrical to the position of the electrode lifting and rotating device Add a set of oxygen burner lifting and rotating device which has basically the same structure and function as the graphite electrode lifting and rotating device. This device mainly consists of column 2, lifting and rotating device 3, lifting drive motor 4, and rotating drive motor 5 , pipeline support 6, oxygen burner holder 7, medium conveying device and oxygen burner 8, wherein the lifting drive motor 4 is fixedly installed on the column 2, and is connected with the lifting and rotating device 3, and the rotating drive motor 5 is fixed and installed On the lifting and rotating device 3, and connected with the lifting and rotating device 3, the...

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Abstract

The invention discloses equipment and method for electric arc furnace steelmaking by using oxygen combustion guns, and belongs to the technical field of electric arc furnace steelmaking. The equipmentis mainly characterized in that the oxygen combustion guns are inserted into a furnace from electrode holes of an electric furnace cover, and high-temperature and high-energy flames produced by the combustion of oxygen and gas which are sprayed by the oxygen combustion guns are utilized to heat and melt scrap steel in the electric furnace; and after the scrap steel is melted to form a molten pool, the molten pool is blown with the oxygen combustion guns for temperature rise, carbon reduction and slagging operation. The oxygen spray pipes of the 6-hole oxygen combustion guns of the equipment are each of a Laval type spray pipe structure, and have the dual functions of combustion heating and oxygen blowing for carbon reduction. According to the electric furnace, the three oxygen combustionguns are inserted into the electric arc furnace for steelmaking, the electric power for the electric arc furnace can be saved by 20-50%, the electrode consumption of the electric arc furnace can be reduced by 70-90%, and the cost per ton of steel can be reduced by 10-35%.

Description

technical field [0001] The invention belongs to the technical field of electric arc furnace steelmaking, and in particular relates to an equipment and method for electric arc furnace steelmaking using an oxygen burner. Background technique [0002] Electric arc furnace, also known as electric furnace, is the most important steelmaking equipment in the world besides converter. During daily production, steelmaking is carried out by high-temperature electric arcs generated under the action of ultra-high power current through the carbon electrodes installed on the cover of the electric arc furnace and entering the hearth of the electric arc furnace through the cover of the electric arc furnace during work. [0003] At present, the electric arc furnace is used to make steel, and the process is completed by two periods: the scrap steel melting period and the molten steel refining period. Among them, the traditional scrap steel melting period accounts for about 50% to 70% of the to...

Claims

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Application Information

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IPC IPC(8): C21C5/52
CPCC21C5/52C21C2005/5258Y02P10/20
Inventor 刘天壮刘志昌战东平安赛前
Owner 江苏必瑞驰科技有限公司
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