MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202617094831 A) filed by Jfe Steel Corporation on August 05, 2026, for Sintered Ore Production Method.
Inventors include Iwami Yuji; Fujiwara Shimpei; and Murao Akinori.
The application for the patent was published on October 30, 2026, under issue no. 44/2026.
Abstract: Provided is a sintered ore production method capable of suppressing production of sintered ore containing unburned carbon in an upper layer of a raw material layer by suppressing heat deficiency in the upper layer of the raw material layer. The present invention provides a sintered ore production method including: a raw material blending step (step S1) for producing a sintering raw material by blending an iron raw material, a first carbonaceous material, and a second carbonaceous material having a combustion start temperature lower than that of the first carbonaceous material; a raw material layer forming step (step S2) for forming a raw material layer by supplying the sintering raw material onto a pallet of a sintering machine; and a sintering step (step S3) for sintering the sintering raw material by igniting the surface of the raw material layer, wherein, in the raw material layer forming step (step S2), the blending ratio of the second carbonaceous material in an upper layer above the central part in the thickness direction of a raw material layer 7 is made higher than the blending ratio of the second carbonaceous material in a lower layer below the central part in the thickness direction.
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