RU2013111287A

RU2013111287A - METHOD FOR PROCESSING LIQUID METAL IN THE KOVSH-OVEN UNIT

Info

Publication number: RU2013111287A
Application number: RU2013111287/02A
Authority: RU
Inventors: Эдуард Эдгарович Меркер; Галина Абдулаевна Карпенко; Владимир Олегович Казарцев
Priority date: 2013-03-14
Filing date: 2013-03-14
Publication date: 2014-09-20
Also published as: RU2532584C1

Abstract

1. Способ обработки жидкого металла в агрегате ковш-печь, включающий электродуговой подогрев металла со шлаком тремя полыми электродами, продувку металла инертными газами через устройство в днище ковша и футерованную фурму с защитным конусом, отличающийся тем, что футерованную фурму с защитным конусом закрепляют на корпусе ковша и размещают напротив устройства в днище ковша, а три полых электрода располагают по центру свода в пространстве между ними в объеме ковша, где осуществляют таким образом одновременную или раздельную продувку жидкого металла инертными газами через отверстия в полых электродах, устройство в днище ковша и футерованную фурму с защитным конусом;2. Способ по п.1, отличающийся тем, что продувку инертными газами через отверстия в трех полых электродах осуществляют раздельно или совместно с подачей сыпучих материалов в потоках инертных газов.3. Способ по п.1, отличающийся тем, что при продувке металла инертными газами через футерованную фурму осуществляют одновременно подачу инертных газов над шлаком и металлом через сопла в защитном конусе фурмы.4. Способ по п.1, отличающийся тем, что расходы инертных газов согласовываются с темпом электродугового подогрева металла и шлака в ковше.5. Способ по п.1, отличающийся тем, что осуществляют продувку металла инертными газами как через три полых электрода, так и поочередно с каждым из них.1. A method of processing liquid metal in a ladle-furnace assembly, including electric arc heating of metal with slag by three hollow electrodes, purging metal with inert gases through a device in the bottom of the bucket, and a lined lance with a protective cone, characterized in that the lined lance with a protective cone is fixed to the housing bucket and placed opposite the device in the bottom of the bucket, and three hollow electrodes are located in the center of the arch in the space between them in the volume of the bucket, where they carry out simultaneous or separate blowing one metal inert gases through openings in the hollow electrodes, the device and the lined ladle bottom tuyere with a protective cone; 2. The method according to claim 1, characterized in that the inert gas purge through openings in three hollow electrodes is carried out separately or together with the supply of bulk materials in inert gas streams. The method according to claim 1, characterized in that when inert gas is blown through the lined lance, the inert gases are simultaneously fed over the slag and metal through nozzles in the lance protective cone. The method according to claim 1, characterized in that the inert gas costs are consistent with the rate of electric arc heating of the metal and slag in the ladle. The method according to claim 1, characterized in that the metal is purged with inert gases both through three hollow electrodes, and in turn with each of them.

Claims

1. A method of processing liquid metal in a ladle-furnace assembly, including electric arc heating of metal with slag by three hollow electrodes, purging metal with inert gases through a device in the bottom of the bucket, and a lined lance with a protective cone, characterized in that the lined lance with a protective cone is fixed to the housing bucket and placed opposite the device in the bottom of the bucket, and three hollow electrodes are located in the center of the arch in the space between them in the volume of the bucket, where they carry out simultaneous or separate blowing one metal inert gases through openings in the hollow electrodes, the device and the lined ladle bottom tuyere with a protective cone;

2. The method according to claim 1, characterized in that the inert gas purge through openings in three hollow electrodes is carried out separately or together with the supply of bulk materials in inert gas streams.

3. The method according to claim 1, characterized in that when the metal is flushed with inert gases through a lined lance, inert gases are simultaneously fed over the slag and metal through nozzles in the lance protective cone.

4. The method according to claim 1, characterized in that the inert gas costs are consistent with the rate of electric arc heating of the metal and slag in the ladle.

5. The method according to claim 1, characterized in that the metal is purged with inert gases both through three hollow electrodes, and in turn with each of them.