A method of manufacturing of a steel product in several steelmaking units
US-2024132984-A1 · Apr 25, 2024 · US
Method for operating blast furnace
US8945274B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8945274-B2 |
| Application number | US-201013388786-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 10, 2010 |
| Priority date | Aug 10, 2009 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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A coke layer and an ore layer are formed in a blast furnace. The coke layer is formed of conventional coke and the ore layer is formed of carbon iron composite, conventional coke, and ore. The mixing percentage of the conventional coke in the ore layer with respect to the ore is 0.5 mass % or more. Slowing of the gasification reaction of carbon iron composite in the cohesive zone can be suppressed.
First claim
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What is claimed is: 1. A method of operating a blast furnace comprising forming a coke layer formed of conventional coke and an ore layer formed of carbon iron composite, conventional coke and ore in a blast furnace, Wherein the conventional coke in the ore layer has a mixing percentage of 0.5 to 6 mass % with respect to the ore, and the carbon iron composite in the ore layer having a mixing percentage of 1 to 20 mass % with respect to the ore. 2. The method…
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- What does patent US8945274B2 cover?
- A coke layer and an ore layer are formed in a blast furnace. The coke layer is formed of conventional coke and the ore layer is formed of carbon iron composite, conventional coke, and ore. The mixing percentage of the conventional coke in the ore layer with respect to the ore is 0.5 mass % or more. Slowing of the gasification reaction of carbon iron composite in the cohesive zone can be suppres…
- Who is the assignee on this patent?
- Sato Takeshi, Nouchi Taihei, Fujimoto Hidekazu, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C21B5/008. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).