Doryokuro Kakunenryo Kaihatsu Jigyodan

Toshio Masaki

Tetsuya Shimizu

Tomohito Iikubo

Hiroshi Igarashi

Noriaki Sasaki

Shin-ichiro Torata

Nickel-base alloy for glass-contracting member used in unenergized state

An electric melting furnace for vitrifying waste, having a melting tank having walls of refractory bricks, the melting tank being provided at the upper portion thereof with a supply port for a glass additive and waste and at the bottom portion thereof with a discharge port for molten glass containing the waste; at least a pair of side electrodes horizontally provided on opposite side walls of the melting tank; and at least one central electrode having a polarity opposite to that of the side electrodes, the central electrode being horizontally positioned in the interior of the melting tank at substantially the middle portion between the side electrodes. By such melting furnace construction, as described above, the heating current selectively flows through between the side electrodes and the central electrode, and does not flow electrically conductive substances deposited on the furnace bottom.

Growing community of inventors

Hitachi, Japan

Toshio Masaki