Title:
PLASMA MELTING METHOD FOR TREATING MATERIAL TO BE TREATED, AND PLASMA MELTING FURNACE USED FOR SAME
Document Type and Number:
WIPO Patent Application WO/2017/195570
Kind Code:
A1
Abstract:
[Problem] The purpose of the present invention is to provide: a plasma melting method for performing, on a material to be treated such as incineration ash and general waste or industrial waste, a treatment in which plasma is generated at a low voltage in the upper part of a furnace and the material to be treated is efficiently subjected to a melting treatment; and a plasma melting furnace used for the plasma melting method. [Solution] This invention is characterized in that: a coke layer is first laid on the furnace bottom of a plasma electric melting furnace in which a metal layer is placed on the furnace bottom and in which a plurality of electrodes can be moved vertically by an electrode raising/lowering device, and some of a material to be treated that is at least one among general waste, industrial waste, and incineration ash is charged onto the coke layer; the lower ends of the electrodes are positioned near the furnace bottom and the passage of current is commenced at a low voltage; the lower ends of the electrodes are raised while the passage of current is stable; the material to be treated is subjected to an additional surge; plasma is generated at the lower part of the electrodes at an operation voltage obtained by raising the voltage to a high voltage from the low voltage applied during the stable passage of current; and the material to be treated is subjected to a melting treatment.
More Like This:
Inventors:
ANZAI SETSU (JP)
Application Number:
PCT/JP2017/016005
Publication Date:
November 16, 2017
Filing Date:
April 21, 2017
Export Citation:
Assignee:
ANZAI SETSU (JP)
International Classes:
F23G5/00
Foreign References:
JP2009073940A | 2009-04-09 | |||
JP2006040619A | 2006-02-09 | |||
JPH1157653A | 1999-03-02 | |||
JPH10218643A | 1998-08-18 | |||
JP2009522450A | 2009-06-11 | |||
JPH09196573A | 1997-07-31 | |||
JPS4890915A | 1973-11-27 | |||
JP2002213726A | 2002-07-31 | |||
JP2001050528A | 2001-02-23 | |||
JP2009249711A | 2009-10-29 | |||
JP2004257631A | 2004-09-16 | |||
JPH11237018A | 1999-08-31 |
Attorney, Agent or Firm:
KATAYOSE, Takehiko et al. (JP)
Download PDF: