AOD furnace gas exhausting device

A technology of an exhaust device and an exhaust hood is applied in the field of metal smelting, which can solve the problems that the AOD furnace process cannot meet the requirements of steel purity, and achieve the effects of improving smelting efficiency, convenient operation and improving purity.

Pending Publication Date: 2021-03-12
ANHUI FUKAI STAINLESS STEEL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an AOD furnace exhaust device to solve the technical problem in the prior art that the AOD furnace process cannot meet the purity requirements of steel

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  • AOD furnace gas exhausting device
  • AOD furnace gas exhausting device
  • AOD furnace gas exhausting device

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Embodiment Construction

[0017] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.

[0018] Introduce a kind of embodiment of the present invention below:

[0019] refer to Figure 1-3 , the present embodiment provides an AOD furnace exhaust device, including an AOD furnace body 1, and two sides of the AOD furnace body 1 are provided with rotating shafts. Negative pressure state, in order to realize above-mentioned purpose, in the present embodiment, at first a furnace body supporting frame 2 is respectively arranged on both sides of AOD furnace body 1, and furnace body support...

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Abstract

The invention discloses an AOD furnace gas exhausting device, and relates to the technical field of metal smelting. The AOD furnace gas exhausting device comprises an AOD furnace body, wherein a furnace body supporting frame is arranged at each of the two sides of the AOD furnace body; a furnace body supporting slot used for erecting a rotary shaft on the AOD furnace body is formed in the inner wall of each furnace body supporting frame; a guide rail slot is formed in the top of each furnace body supporting frame; a guide rail is fixedly mounted in each guide rail slot; a U-shaped gas exhausting cover frame with a downward opening is arranged above the two furnace body supporting frames; the bottom ends of the two arms of the gas exhausting cover frame are erected on one guide rail throughrollers; a lifter is fixedly mounted on the middle part of the sealed end of the gas exhausting cover frame; the lifter is connected with a gas exhausting cover used for sealing the top end of the AOD furnace body through a plurality of hanger chains; and the side wall of the gas exhausting cover is connected with a gas exhausting system. The AOD furnace gas exhausting device can effectively sealand exhaust gas of the AOD furnace body, realizes negative-pressure refining, is simple in equipment structure, and can effectively improve working efficiency.

Description

technical field [0001] The invention relates to the technical field of metal smelting, in particular to an AOD furnace exhaust device used in the smelting process. Background technique [0002] In the smelting of stainless steel materials in AOD furnace, some stainless steel materials require the content of O, H and N elements to be controlled. In the smelting of austenitic stainless steel in conventional AOD, the minimum content of N is generally controlled to about 250ppm, the content of oxygen is about 50ppm, and the content of hydrogen At about 10ppm, it is difficult to meet the smelting requirements of some high-demand austenitic stainless steel materials. At present, in order to break through this limitation, various steel manufacturers adopt the main method of refining from AOD furnace to VD furnace or VOD furnace. The process is cumbersome and complicated. In order to overcome the shortcomings of the existing AOD furnace, without adding new smelting equipment, the ex...

Claims

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Application Information

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IPC IPC(8): C21C7/072C21C7/06C21C7/068
CPCC21C7/06C21C7/0685C21C7/072
Inventor 徐涛吴振忠马红军舒美良黄日圣陈伟生陈晓靓冯昊苏周亚明陆明新
Owner ANHUI FUKAI STAINLESS STEEL
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