METHOD FOR PRODUCING PELLET FOR IRON-MARKING RAW MATERIAL

• Main Authors: NAKA HIROTOKU, NASUNO TAKAHIRO, NOBEMOTO AKIRA
• Format: Patent
• Language: English
• Published: 18.12.2001
• Edition: 7
• 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

PROBLEM TO BE SOLVED: To provide a method for obtaining a pellet having sufficient strength for iron-making raw material with a little quantity of starch. SOLUTION: Into raw material obtained by using single use of or a mixture of iron-containing powder produced in the iron-making process, such as blast furnace/converter dust, rolling scale, sludge and iron ore powder, carbonaceous material such as coal and coke is added together with starch, mixed and kneaded, and further, a starch solution is supplied to the resultant product at a granulating machine and granulation is performed.