Title:
PLASMA ARC TYPE MELTING FURNACE
Document Type and Number:
Japanese Patent JP3643773
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a plasma arc type melting furnace capable of melting efficiently and reducing damage of a fire-resisting wall due to melting.
SOLUTION: Three main electrodes 3 for plasma electrodes and one furnace bottom electrode 4 are arranged inside the furnace main body 2 of a melting furnace 1. The main electrodes 3 are arranged apart from one another and hung from the upper part. A furnace bottom electric current 4 is arranged roughly at the center of a triangle with the main electrodes 3 as apexes. The main electrodes 3 and the furnace bottom electrode 4 are connected with direct- current power supply equipment (not shown in Fig.) respectively. When the electric current is passed between the electrodes, the burned ash inside the furnace main body 2 is melted by plasma heat generation and the Joule heat generation in slag. Upflow is caused by a plasma jet and the blown slag flow. Since the burned ash is thrown in the intermediate part of the main electrodes 3 having a high temperature, downflow is caused to perform melting inside a liquid.
Inventors:
Akira Noma
Ichiro Yamashita
Yonosuke Hoshi
Nishikawa Susumu
Shizuo Yasuda
Katsuhiko Kobayashi
Keita Inoue
Minoru Ike
Ichiro Yamashita
Yonosuke Hoshi
Nishikawa Susumu
Shizuo Yasuda
Katsuhiko Kobayashi
Keita Inoue
Minoru Ike
Application Number:
JP2000381256A
Publication Date:
April 27, 2005
Filing Date:
December 15, 2000
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F23J1/00; F27B3/08; F27D11/08; H05B7/18; H05B7/20; (IPC1-7): F23J1/00; F27B3/08; F27D11/08; H05B7/18; H05B7/20
Domestic Patent References:
| JP2000018552A | ||||
| JP3267684A | ||||
| JP7225013A | ||||
| JP8189620A | ||||
| JP8005247A |
Attorney, Agent or Firm:
Shoichi Okuyama
Arihara Koichi
Matsushima Tetsuo
Arihara Koichi
Matsushima Tetsuo