C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/9
C22B 1/20 (2006.01) C22B 1/24 (2006.01)
Patent
CA 1259493
METHOD FOR CONTINUOUSLY MANUFACTURING FIRED PELLETS ABSTRACT OF THE DISCLOSURE A method for continuously manufacturing fired pellets, comprising the steps of: using raw materials comprising a first iron ore fine of from 30 to 70 wt.% and a second iron ore fine of from 70 to 30 wt.%, the first iron ore fine comprising an iron ore fine of from 50 to 80 wt.% having a particle size of up to 0.044 mm and an iron ore fine of from 50 to 20 wt.% having a particle size of from over 0.044 mm up to 0.5 mm, the second iron ore fine comprising an iron ore fine of from 40 to 70 wt.% having a particle size of from over 0.5 mm up to 8 mm and an iron ore fine of from 60 to 30 wt.% having a particle size of up to 0.5 mm; adding a powdery flux and water to the above-mentioned raw materials to form a mixture; forming the mixture into green pellets having a particle size of from 3 to 12 mm; covering the surfaces of the green pellets with a powdery solid fuel in a prescribed amount; and drying, igniting and then firing the green pellets in an endless travelling grate type firing furnace into fired pellets.
510905
Iwata Yoshihito
Miyashita Tsuneo
Saito Hiroshi
Sakamoto Noboru
Satomi Koji
Macrae & Co.
Nippon Kokan Kabushiki Kaisha
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