RU2008146563A

RU2008146563A - METHOD FOR CONDUCTING REDUCING Smelting AND DEVICE FOR ITS IMPLEMENTATION

Info

Publication number: RU2008146563A
Application number: RU2008146563/02A
Authority: RU
Inventors: Иван Андреевич Безруков (RU); Иван Андреевич Безруков
Priority date: 2008-11-25
Filing date: 2008-11-25
Publication date: 2010-05-27
Also published as: RU2412260C2

Abstract

1. Устройство для ведения восстановительной плавки, содержащее плавильную емкость, по меньшей мере один электродный узел, состоящий из двух коаксиально расположенных электродов - наружного и внутреннего, причем наружный электрод выполнен полым, отличающееся тем, что наружный полый электрод выполнен самоспекающимся, в виде двух коаксиальных труб, зазор между которыми заполнен компонентами шихты и токопроводящей самоспекающейся массой. ! 2. Устройство по п.1, отличающееся тем, что внутренний электрод выполнен самоспекающимся, в виде трубы с полостью, заполненной токопроводящей самоспекающейся массой. ! 3. Устройство по п.1, отличающееся тем, что компоненты шихты расположены в зазоре между двух коаксиальных труб, образующих наружный электрод, в виде трубы, коаксиальной с наружным электродом. ! 4. Устройство по п.1, отличающееся тем, что зазор между двух коаксиальных труб, образующих наружный электрод, заполнен смесью компонентов шихты и токопроводящей самоспекающейся массы. ! 5. Способ ведения восстановительной плавки, включающий размещение в плавильной емкости по меньшей мере одного электродного узла, загрузку переплавляемого материала, подачу газа, подачу напряжения на электроды, зажигание электрической дуги, установку электродов в рабочее положение, отличающийся тем, что, с целью повышения к.п.д. устройства и снижения расхода восстановителя, в процессе плавки компоненты шихты подают совместно с токопроводящей самоспекающейся массой в зазор между двух коаксиальных труб, образующих наружный самоспекающийся электрод электродного узла, и/или компоненты шихты подают в полость между наружным и внутренним элек� 1. A device for conducting reducing smelting, comprising a melting capacity, at least one electrode assembly, consisting of two coaxially arranged electrodes - an external and an internal one, the external electrode being hollow, characterized in that the external hollow electrode is self-sintering, in the form of two coaxial pipes, the gap between which is filled with the components of the charge and conductive self-sintering mass. ! 2. The device according to claim 1, characterized in that the internal electrode is made self-sintering, in the form of a pipe with a cavity filled with a conductive self-sintering mass. ! 3. The device according to claim 1, characterized in that the components of the charge are located in the gap between two coaxial pipes forming the outer electrode, in the form of a pipe coaxial with the outer electrode. ! 4. The device according to claim 1, characterized in that the gap between the two coaxial pipes forming the outer electrode is filled with a mixture of charge components and a conductive self-sintering mass. ! 5. A method of conducting reduction smelting, comprising placing at least one electrode assembly in a melting tank, loading remelted material, supplying gas, applying voltage to electrodes, igniting an electric arc, setting electrodes in a working position, characterized in that, in order to increase .pd to reduce the consumption of the reducing agent during the smelting process, the charge components are fed together with the conductive self-sintering mass into the gap between two coaxial pipes forming the external self-sintering electrode of the electrode assembly, and / or the charge components are fed into the cavity between the external and internal elec

Claims

1. A device for conducting reducing smelting, comprising a melting capacity, at least one electrode assembly, consisting of two coaxially arranged electrodes - an external and an internal one, the external electrode being hollow, characterized in that the external hollow electrode is self-sintering, in the form of two coaxial pipes, the gap between which is filled with the components of the charge and conductive self-sintering mass.

2. The device according to claim 1, characterized in that the internal electrode is made self-sintering, in the form of a pipe with a cavity filled with a conductive self-sintering mass.

3. The device according to claim 1, characterized in that the components of the charge are located in the gap between two coaxial pipes forming the outer electrode, in the form of a pipe coaxial with the outer electrode.

4. The device according to claim 1, characterized in that the gap between the two coaxial pipes forming the outer electrode is filled with a mixture of charge components and a conductive self-sintering mass.

5. A method of conducting reduction smelting, comprising placing at least one electrode assembly in a melting tank, loading remelted material, supplying gas, applying voltage to electrodes, igniting an electric arc, setting electrodes in a working position, characterized in that, in order to increase .pd devices and reduce the consumption of the reducing agent, during the melting process, the charge components are fed together with the conductive self-sintering mass into the gap between two coaxial pipes forming the external self-sintering electrode of the electrode assembly, and / or the charge components are fed into the cavity between the external and internal electrodes of the electrode assembly.