Argon blowing and powder injection device and ladle refining furnace

A technology of powder spraying and gas source, which is applied in the field of metallurgy, can solve the problems of deterioration of working environment, increase of molten steel oxidation, affecting operation accuracy and economy, and achieve the effect of improving working environment and reducing dust.

Inactive Publication Date: 2011-01-12
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During this process, the high-level silo is accompanied by dust, which deteriorates the working environment, and part of the material falls on the slag layer, which loses its original role and affects the accuracy and

Method used

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  • Argon blowing and powder injection device and ladle refining furnace
  • Argon blowing and powder injection device and ladle refining furnace
  • Argon blowing and powder injection device and ladle refining furnace

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Embodiment Construction

[0028] Explanation of related terms:

[0029] LF furnace (Ladle Furnace), that is, ladle refining furnace.

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] The invention provides an argon blowing and powder spraying device to achieve the purposes of reducing the oxidation of molten steel and reducing dust.

[0032] Please refer to Figure 1 to Figure 2 , the figure is a schematic top view of the argon-blowing and powder-injecting device provided in the embodiment of the present invention; figure...

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Abstract

The embodiment of the invention discloses an argon blowing and powder injection device which comprises a gas source (17), a gas source channel control valve (16) connected with a gas outlet of the gas source (17), a closed pressure blanking hole (12) used for blanking, a gas mixing tank (10), a conveying pipe (8) and an electrode clamping chuck (1), wherein a blanking hole control valve (11) is installed at a discharge hole of the closed pressure blanking hole (12), the feeding hole of the gas mixing tank (10) is respectively connected with the gas source channel control valve (16) and the blanking hole control valve (11), a gas mixing tank channel control valve (9) is arranged at a discharge hole of the gas mixing tank (10), one end of the conveying pipe (8) is connected with a discharge hole of the gas mixing tank channel control valve (9), one end of the electrode clamping chuck (1) is connected with the other end of the conveying pipe (8), the electrode clamping chuck (1) is connected with an electrode tube (2) and supplies currents to the electrode tube (2), a central aperture used for conveying argon to the electrode tube (2) is formed inside the electrode clamping chuck (1), and the end of the electrode tube (2) is arranged below a liquid level of molten steel (7).

Description

technical field [0001] The invention relates to the field of metallurgy, and more specifically relates to an argon blowing powder injection device and a ladle refining furnace. Background technique [0002] LF furnace (Ladle Furnace), that is, ladle refining furnace, is the main refining equipment outside the furnace in steel production. LF furnace has rich functions such as deep desulfurization, deep deoxidation, removing non-metallic inclusions in steel to purify molten steel, changing the shape of inclusions, preventing secondary oxidation of molten steel, heating up and adjusting the temperature of molten steel, and adjusting the composition of molten steel. Iron and steel enterprises have been widely promoted and applied. [0003] At present, the heating of LF furnace adopts electric arc technology. When adding slag material and alloying operation in electric arc heating LF furnace, it usually uses high-level silo to discharge material and stir with large amount of arg...

Claims

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Application Information

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IPC IPC(8): C21C7/00C21C7/04C21C7/072F27B17/00F27D11/10F27D3/16F27D3/18
Inventor 张冠锋许荣昌刘洪银
Owner SHANDONG IRON & STEEL CO LTD
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