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:
Sep. 16, 2014
Filed:
Nov. 11, 2005
Kenichi Yakashiro, Kitakyushu, JP;
Takeshi Imai, Kitakyushu, JP;
Akira Gushima, Kitakyushu, JP;
Tsuneo Ikeda, Kitakyushu, JP;
Kenichi Yakashiro, Kitakyushu, JP;
Takeshi Imai, Kitakyushu, JP;
Akira Gushima, Kitakyushu, JP;
Tsuneo Ikeda, Kitakyushu, JP;
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Abstract
A method for pretreating a sintering material using as a material at least two types of iron ore containing coarse grains and fine powder, using a first granulator to make the fine powder stick to coarse grains forming core grains so as to produce S-type granules, and using a second granulator to granulate only fine powder or mainly fine powder to produce P-type granules, which method producing the S-type granules by adjusting an amount of fine powder supplied into said first granulator so that the average stuck thickness of fine powder to the core grains becomes 50 to 300 μm and supplying the remaining fine powder not supplied to said first granulator to the second granulator.