The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 09, 1988
Filed:
Jun. 04, 1986
Koji Satomi, Tokyo, JP;
Tsuneo Miyashita, Yokohama, JP;
Hiroshi Saito, Tokyo, JP;
Noboru Sakamoto, Yokohama, JP;
Yoshihito Iwata, Tokyo, JP;
Nippon Kokan Kabushiki Kaisha, Tokyo, JP;
Abstract
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.