METHOD OF DEMOLISHING FURNACE OF MULTILAYERED-REFRACTORY STRUCTURE

A method for dismantling a furnace having a multilayered refractory structure including: a furnace shell (61); a containing layer (62A) that is formed of a containing refractory (621, 622) that contains asbestos, and covers the inner side of the furnace shell; and a multilayered non-containing layer...

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Bibliographische Detailangaben
Hauptverfasser:	DOI YOSHIHITO, KURAYOSHI KAZUMI, MORI KATSUMI, KATO RYO
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BLASTING CHEMISTRY DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES HEATING KILNS LIGHTING MANUFACTURE OF IRON OR STEEL MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON OVENS RETORTS WEAPONS
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Beschreibung
Zusammenfassung:	A method for dismantling a furnace having a multilayered refractory structure including: a furnace shell (61); a containing layer (62A) that is formed of a containing refractory (621, 622) that contains asbestos, and covers the inner side of the furnace shell; and a multilayered non-containing layer (62B) that is formed of a non-containing refractory (623 to 625) that contains no asbestos, and covers the inner side of the containing layer, the method includes: a primary dismantling process; and a secondary dismantling process conducted after the primary dismantling process. In the primary dismantling process, the non-containing layer (62B) is dismantled from a furnace-core side thereof but the containing layer (62A) and at least one layer (623) of the layers forming the non-containing laxer (62B), which is in contact with the containing layer, are left as a remnant (62C). In the secondary dismantling process, the remnant (62C) is dismantled while asbestos measures are implemented.