AUTOMATIC CONTROL DEVICE FOR ELECTRIC RESISTANCE TYPE MELTING FURNACE

Title:

AUTOMATIC CONTROL DEVICE FOR ELECTRIC RESISTANCE TYPE MELTING FURNACE

Document Type and Number:

Japanese Patent JP3542074

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To automatically perform horizontal and vertical movement of electrodes and discharge of molten slag according to the temperature and level of the molten slag, save electric power consumption and prevent breakage of a transformer, a furnace wall or the like.
SOLUTION: A device comprises a plurality of electrodes 3, 4 which are disposed inside of an electric resistance type melting furnace 1, a horizontal movement device 7 for horizontally moving these electrodes, and an ammeter 14 for measuring the value of electric current that runs through the electrodes. The horizontal movement device is driven to control the distance between the electrodes based on the electric current value measured by the ammeter.

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Inventors:

Hideo Katayama

Application Number:

JP2000049355A

Publication Date:

July 14, 2004

Filing Date:

February 25, 2000

Export Citation:

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Assignee:

Anzai Bushi

International Classes:

F23J1/00; F27B14/04; F27B14/06; F27B14/20; F27D11/02; F27D19/00; (IPC1-7): F23J1/00; F27B14/06; F27B14/20; F27D11/02

Domestic Patent References:

JP4367519A
JP10318522A
JP10038248A
JP10246415A
JP11325428A

Attorney, Agent or Firm:

Hiroki Shirai
Ryukichi Abe
Hirukawa Masanobu
Norihiko Uchida
Hideo Sugai
Kenji Aoki
Hiroshi Nagisawa
Akira Yonezawa

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