METHOD FOR MANUFACTURING GRANULATED RAW MATERIAL FOR SINTERING

• Main Authors: GOTO, Shigeaki, TAKIGAWA, Yohei, WATANABE, Soichiro, TSUTSUMI, Ryuji, HANDA, Eiji, YAMAMOTO, Tetsuya, HIROSAWA, Toshiyuki, HIGUCHI, Takahide
• Format: Patent
• Language: English; French; German
• Published: 27.12.2023
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

Proposed is a novel method for manufacturing granulated raw material for sintering wherein vapor is used during granulation for heating, which is effective in improving gas permeability as well as productivity pf sintered ore when the granulated raw material for sintering is charged into a sintering machine. In the proposed method for manufacturing granulated raw material for sintering, when a compounding raw material for sintering formed by compounding iron ore powder, carbon material, and auxiliary material is granulated in a granulator, water vapor is blown into the granulator thereby to increase the temperature of the granulated raw material for sintering higher than that of the compounding raw material for sintering before charged into the granulator by not less than 10 °C.