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An intermediate frequency induction melting furnace system and method

An induction melting furnace and intermediate frequency technology, applied in the field of vacuum induction heating refining equipment, can solve problems such as difficult to complete the refining processes such as dephosphorization and decarburization of molten steel, affecting the rhythm of continuous casting or vacuum refining, and difficult to guarantee metallurgical quality. Small environmental pollution, low smelting energy consumption and high metal recovery rate

Active Publication Date: 2019-08-27
XIAN UNIV OF SCI & TECH
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Problems solved by technology

[0002] In iron and steel smelting, the intermediate frequency induction melting furnace is currently difficult to complete the refining processes such as dephosphorization and decarburization of molten steel, and its metallurgical quality is difficult to guarantee
During vacuum refining, the temperature drop of molten steel has always been a big problem, which seriously affects the continuous casting rhythm or vacuum refining effect

Method used

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  • An intermediate frequency induction melting furnace system and method

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Embodiment Construction

[0021] In order to further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific implementation, structural features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0022] refer to figure 1 , this embodiment discloses a medium frequency induction melting furnace system (RHI) equipped with vacuum dephosphorization, decarburization and desulfurization. 4. Composed of air extraction pipeline 5, rail car 6, etc.

[0023] The vacuum cycle smelting device 2 is operated by the lifting system 601 of the railcar 6, so that the vacuum tank 201 and the vacuum cover 202 can be lifted and lowered freely in the vertical direction.

[0024] Oxygen lance spray gun lifting system 3 and vacuum feeding device 4 are installed on the vacuum cover. The oxygen lance spray gun can freely enter and exit the vacuum cover, alloy materials, dephosphori...

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Abstract

The invention relates to a medium-frequency induction smelting steel production system. The system comprises a medium-frequency induction smelting furnace, a vacuum circular smelting device, an oxygen gun and spraying gun lifting system, a vacuum charging device and a rail car; the vacuum circular smelting device is arranged above the medium-frequency induction smelting furnace; the rail car drives the vacuum circular smelting device to perform a lifting motion, so that a vacuum groove and a vacuum cover perform a lifting motion in the vertical direction; the oxygen gun and spraying gun lifting system and the vacuum charging device are respectively mounted on the vacuum cover; the oxygen gun and spraying gun lifting system is used for driving an oxygen gun and a spraying gun to freely access the vacuum cover; and the vacuum charging device is used for feeding alloy materials into the vacuum groove in a vacuum state. The system has the advantages of low smelting energy consumption, no environmental pollution, high metal recovery rate and high refining efficiency.

Description

technical field [0001] The invention belongs to vacuum induction heating refining equipment, in particular to a medium frequency induction melting furnace system and method. Background technique [0002] In iron and steel smelting, it is currently difficult for intermediate frequency induction melting furnaces to complete refining processes such as dephosphorization and decarburization of molten steel, and its metallurgical quality is difficult to guarantee. During vacuum refining, the large temperature drop of molten steel has always been a big problem, which seriously affects the continuous casting rhythm or vacuum refining effect. Contents of the invention [0003] In order to solve the above technical problems, the object of the present invention is to provide a medium frequency induction melting furnace system and method. [0004] The technical problem to be solved in the present invention is realized through the following technical solutions: [0005] An intermedia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C7/10C21C7/064C21C7/068C21C7/06
Inventor 陈龙民
Owner XIAN UNIV OF SCI & TECH
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