MANUFACTURE OF SINTERED ORE WITH HIGH PRODUCTIVITY

• Main Authors: KANISAWA HIDEO, KOBAYASHI YUKIO, NAGAI TADAHIRO
• Format: Patent
• Language: English
• Published: 07.05.1982
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF ALLOYS OR NON-FERROUS METALS

PURPOSE:To manufacture sintered ore with high productivity without deteriorating the quality by mixing blended starting material with a small amount of a linear or flaky iron source and sintering the mixture. CONSTITUTION:When fine ore is sintered, to blended starting material is added <=3wt% needlelike, spiral or flaky iron source, and they are mixed, controlled in humidity, and simultaneously converted into pseudogranules. This mixed starting material is charged into a sintering machine and sintered. By adding metallic iron, the pseudogranules are strengthened, and the space among the granules is maintained properly to enhance the gas permeability during sintering. The added needlelike iron source includes steel fiber having about 1:(20-100) ratio between the diameter and length.