BURNER FOR BLOWING PULVERIZED FINE COAL FOR METALLURGY, AND METHOD FOR BLOWING PULVERIZED FINE COAL INTO METALLURGICAL FURNACE

PROBLEM TO BE SOLVED: To provide a burner for blowing pulverized fine coal for metallurgical furnace with which a large quantity of pulverized fine coals can be blown by improving contacting efficiency of the pulverized fine coals with hot blast and oxygen gas so as to improve the combustion ratio o...

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Bibliographische Detailangaben
Hauptverfasser:	MURAO AKINORI, MORI KOUJIYU, MURAI RYOTA, GOTO KAZUYA, KASHIWABARA YUSUKE, ARIYAMA TATSURO, SATO MICHITAKA
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BURNERS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMBUSTION APPARATUS COMBUSTION PROCESSES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MANUFACTURE OF IRON OR STEEL MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a burner for blowing pulverized fine coal for metallurgical furnace with which a large quantity of pulverized fine coals can be blown by improving contacting efficiency of the pulverized fine coals with hot blast and oxygen gas so as to improve the combustion ratio of the pulverized fine coals. SOLUTION: The portion at the tip end side of the pulverized fine coal blowing tube 2, is composed of a reducing diameter tube part 20 gradually reducing the diameter toward the tube end side to the inner diameter, and an enlarging diameter tube part 21 gradually enlarging the diameter toward the tip end side to the inner diameter in the tube end part connected with the above reducing diameter tube part, and a widening angle θ with respect to the tube axis in the inner surface of the enlarging diameter part is