The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2000
Filed:
Dec. 09, 1997
Tsutomu Fukushima, Yokohama, JP;
Yoshinari Fujisawa, Yokohama, JP;
Keisuke Nakahara, Chigasaki, JP;
Tsuyoshi Nakao, Yokohama, JP;
Masahiro Sudou, Yokohama, JP;
NKK Corporation, Tokyo, JP;
Abstract
A method of melting an incineration residue includes steps of: charging an incineration residue containing salts into a melting furnace; heating the charged incineration residue in the melting furnace to produce a melt which includes a molten slag layer and a molten salt layer on the molten slag layer; controlling a temperature of the molten salt in the molten salt layer; discharging the molten slag from the melting furnace; and discharging the molten salt from the melting furnace. An apparatus for melting an incineration residue includes: a melting furnace main body, having a molten slag hold-up section and a molten salt hold-up section on the molten slag hold-up section, into which an incineration residue containing salts is charged; a charging device for charging the incineration residue in the melting furnace main body; a heating device for melting the charged incineration residue to produce a melt comprising a molten slag in the molten slag hold-up section and a molten salt being in the molten salt hold-up section; a control device for controlling a temperature of the molten salt in the molten salt hold-up section; a slag discharge port for discharging the molten slag from the molten slag hold-up section; and a salt discharge port for discharging the molten salt from the molten salt hold-up section.