| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for granulating a raw material to be sintered, which improves the production efficiency of a sintered ore, and is suitable for producing a sintered ore that has calcium ferrite with high strength formed on the surface thereof and hematite with high reducibility in the inner part. SOLUTION: The method for granulating the raw material to be sintered by the steps of granulating the material to be sintered which does not contain limestone and coke breeze, with a drum mixer, and then adding the limestone and the coke breeze to the granulated pseudo-particles to make the limestone and the coke breeze deposit on the surface of the granulated pseudo-particles, when producing the sintered ore for a blast furnace, includes adjusting the viscosity of water for granulation to 500 mPa s or higher, when granulating the material to be sintered which does not contain the limestone and the coke breeze, granulating the material, and adding the limestone and the coke breeze to the granulated pseudo-particles to make the limestone and the coke breeze deposit on the granulated pseudo-particles. COPYRIGHT: (C)2008,JPO&INPIT
|
