FURNACE HEARTH STRUCTURE FOR FITTING BOTTOM GAS NOZZLE IN ELECTRIC FURNACE

PURPOSE:To simplify change of a nozzle and to reduce wear of the nozzle by setting a tuyere brick on outer peripheral face of the nozzle and filling up monolithic refractory between lower outer peripheral face of the nozzle and the tuyere body brick. CONSTITUTION:Gaps between intermediate tuyere bri...

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Bibliographische Detailangaben
Hauptverfasser:	KANEBAYASHI HISASHI, DOHARA TAKEMI, ISOMURA SACHIYOSHI, MINE YUZURU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING KILNS LIGHTING MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON OPEN SINTERING OR LIKE APPARATUS OVENS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL RETORTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To simplify change of a nozzle and to reduce wear of the nozzle by setting a tuyere brick on outer peripheral face of the nozzle and filling up monolithic refractory between lower outer peripheral face of the nozzle and the tuyere body brick. CONSTITUTION:Gaps between intermediate tuyere brick 2-2 in the tuyere brick 2 forming nozzle bedding material in the electric furnace and the nozzle 1, and further, between permanent tuyere 3 and the nozzle 1, are made to stampping constitution 11-1 with the monolithic refractory. Further, the inner hole diameter formed with the tuyere body brick 2 is formed so as to larger than the max. diameter in the nozzle 1 set in the inner hole. At the time of changing the nozzle 1 in the case the nozzle erodes, a nozzle holder 1-5 is set on the permanent tuyere 3 supported with a holding metallic material 7 for nozzle 1, and primary piping 1-1 and the nozzle 1 are set. After that, only the upper tuyere brick 2-1 is changed. Thus, fitting from inside of the furnace becomes possible and setting of the nozzle 1 is simplified.