METHOD AND APPARATUS FOR TREATING WASTE

Title:

METHOD AND APPARATUS FOR TREATING WASTE

Document Type and Number:

WIPO Patent Application WO/2004/023039

Kind Code:

A1

Abstract:

A method and apparatus for treating waste, capable of solving problems of (a) stoppage of a duct, (b) time for charging waste in a furnace, (c) discharge of unused carbon, (d) control of a waste upper-face position, (e) recycling of halogen class materials, (f) charging of harmful waste materials, and (g) rise in internal pressure in a basin chamber. A waste treatment furnace comprises a furnace body, a gas outlet provided in the upper part of the furnace body, an outlet for molten slag and/or molten metal, located in the lower part of the furnace body, a waste inlet provided between the outlet for molten slag and/or molten metal and the gas outlet, a furnace center lance provided in the upper part of the furnace body along the furnace axis and for blowing a burn-assisting gas downward into the furnace, an upper tuyere arranged in more than one step in the furnace wall between the waste inlet and the gas outlet, and a tuyere arranged in more than one step in the furnace wall between the waste inlet and the outlet for molten slag and/or molten metal. When waste is charged into the waste treatment furnace to perform at least one of the treatments of burning, gasification, and melting, discharge gas generated in the at least one of the treatments is cooled in the furnace in the vicinity of the inlet of a duct that is connected to the furnace body of the waste treatment furnace and guides discharge gas to outside the furnace body.

More Like This:

JPH0350405	FLAME IONIZING MEMBER AND APPLICATION THEREOF
JPS56110811	MELTING PROCESS OF WASTE MATERIAL

Inventors:

YAMAMOTO TAKAIKU (JP)
SATO HIROTAKA (JP)
MATSUKURA YOSHINORI (JP)

Application Number:

PCT/JP2003/011202

Publication Date:

March 18, 2004

Filing Date:

September 02, 2003

Export Citation:

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Assignee:

SUMITOMO METAL IND (JP)
YAMAMOTO TAKAIKU (JP)
SATO HIROTAKA (JP)
MATSUKURA YOSHINORI (JP)

International Classes:

F23G5/08; F23G5/24; (IPC1-7): F23G5/24; F23J3/00; F23J15/00

Domestic Patent References:

WO2000045090A1

2000-08-03

Foreign References:

JPS5821729U	1983-02-10
JPH10267252A	1998-10-09
JP2001208332A	2001-08-03
JP2002155287A	2002-05-28
JPS5310562A	1978-01-31
JPS5310561A	1978-01-31
JPH09112848A	1997-05-02
JPH0996410A	1997-04-08
JPH10281437A	1998-10-23