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:
Jun. 21, 2011
Filed:
Jul. 29, 2010
Tetuharu Ibaraki, Kimitsu, JP;
Hiroshi Oda, Kimitsu, JP;
Shoji Imura, Kimitsu, JP;
Masaharu Takahashi, Kimitsu, JP;
Tetuharu Ibaraki, Kimitsu, JP;
Hiroshi Oda, Kimitsu, JP;
Shoji Imura, Kimitsu, JP;
Masaharu Takahashi, Kimitsu, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
The present invention provides a method and facility for preventing crumbling and powderization of green pellets when producing high strength green pellets using a powder feedstock and using the pellets in a rotary hearth reducing furnace and for efficiently reducing the same. It comprises kneading by a kneadera feedstock of a powder of a fine particle size (20 to 80 wt % having size of not more than 10 μm) including a metal oxide and carbon-bearing powder fed from a feed storage tankand producing green pellets by a pan type pelletizer. The green pellets are screened by a pellet screen, then dried by a pellet dryerand reduced by firing in a rotary hearth reducing furnace. At that time, the green pellets are continuously conveyed to prevent crumbling.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile