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Title:
MOLTEN AND SOLIDIFIED INCINERATOR ASH MELTING AND SOLIDIFYING METHOD AND APPARATUS AND METHOD FOR USING MOLTEN AND SOLIDIFIED ASH
Document Type and Number:
Japanese Patent JP2002346502
Kind Code:
A
Abstract:

To provide a method and an apparatus to melt and solidify ashes capable of decreasing the volume of incinerator ashes by melting and solidification and detoxicating the ashes while saving auxiliary material cost and making the molten and solidified matter advantageously usable especially for an installation material in sea and to provide the molten and solidified matter and its utilization method.

Dried incinerator ashes are mixed with component adjustment materials of shellfish such as scallop, oyster and a reducing agent and melted in an electric furnace to discharge molten slag containing mainly SiO2, Al2O3, CaO, MgO, and the like, and the discharged molten slag is cast in a casting die and gradually cooled and crystallized to make it a rock with a prescribed shape and size. Based on the necessity, the obtained rock may contain mill scale as an iron ion donor.


Inventors:
UMEMOTO MASATSURU
FUJITA MITSURU
SOGA YOSHISADA
Application Number:
JP2001156526A
Publication Date:
December 03, 2002
Filing Date:
May 25, 2001
Export Citation:
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Assignee:
FUJI ELECTRIC SYSTEMS CO LTD
FUJI ELECTRIC CO LTD
PACIFIC METALS CO LTD
International Classes:
B09B3/00; F23J1/08; F23J1/00; (IPC1-7): B09B3/00; F23J1/00; F23J1/08
Domestic Patent References:
JPH1121155A1999-01-26
JPH10167783A1998-06-23
JPH04326975A1992-11-16
JPH02261588A1990-10-24
JPH0571723A1993-03-23
JPH03275568A1991-12-06
Attorney, Agent or Firm:
Iwao Yamaguchi (2 people outside)