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Patent Searching and Data


Title:
MELTING AND CIRCULATING TREATMENT OF SOLID CONTAINING HEAVY METAL
Document Type and Number:
Japanese Patent JPH06226236
Kind Code:
A
Abstract:

PURPOSE: To provide treating means for recycling ash-like waste to resources capable of establishing a circulation system without requiring ancillary equipment and treatment.

CONSTITUTION: This treatment method for waste ashes consists in subjecting the waste ashes from a melting furnace to a washing or ash ferritization treatment and subjecting the solid-contents after removal of water-soluble components therefrom by washing to a drying treatment, then charging the ashes into the melting furnace. The circulation treatment system of subjecting the ashes generated from the melting furnace to the washing treatment or the ash ferritization treatment and returning the solid-contents after the removal of the water-soluble components therefrom by washing to the melting furnace is economically formed by applying the method to a waste treatment furnace of a melting type. Consequently, the recycling of the waste ashes to resources as slag and heavy metal resources is possible while these waste ashes are heretofore required to be used for reclamation after the non-pollution treatment. The need for a reclamation land is thus eliminated.


Inventors:
KISHIDA MASAKATSU
TAKUMA MASAO
KITANO MAKOTO
Application Number:
JP1661893A
Publication Date:
August 16, 1994
Filing Date:
February 03, 1993
Export Citation:
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Assignee:
NIPPON STEEL CORP
International Classes:
B09B3/00; (IPC1-7): B09B3/00; B09B3/00
Attorney, Agent or Firm:
Kobori Masashi