Utilization method of acid remelted iron powder

• Main Authors: ZHAO HAIQUAN, YI GUILAN, FAN MENGHUI, YE WENCHENG, LI JIANJUN, SHI YONGLIN
• Format: Patent
• Language: Chinese; English
• Published: 04.05.2011
• Subjects: CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MANUFACTURE OF IRON OR STEEL; METALLURGY; METALLURGY OF IRON; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention relates to a utilization method of acid remelted iron powder, which sequentially comprises the following steps of: (1) mixing materials: uniformly stirring 30-50 parts by mass of acid remelted iron powder, 50-70 parts by mass of iron scales and not more than 10 parts by mass of coke powder, adding 1-15 parts by mass of water and 3-5 parts by mass of binder humic acid, and uniformly mixing; (2) pressing cakes: sending the mixed material into a cake pressing machine by using a belt, extruding into pressed cakes under the pressure of 25+/-5 MPa, and baking or naturally airing the pressed cakes; and (3) delivering into a kiln: loading the pressed cakes in a pot, tamping the pot with coke, sealing the material pot, maintaining the temperature for 8+/-1 h at a temperature of 1300+/-100 DEG C, cooling for 6+/-1 h into sponge iron, and discharging out of the kiln. The utilization method of acid remelted iron powder has the advantages of low cost and high efficiency.