| 摘要 |
PROBLEM TO BE SOLVED: To develop such a technique as to reduce the absorbing amount of water which does not contribute to a granulation function, for the purpose of performing a sintering operation using ore with a large amount of high crystal water and keeping high productivity. SOLUTION: The ore with high crystal water 1 containing≥4 mass% crystal water is blended with≥5 mass% new raw material in a sintering raw material. In this case, the ratio of the grain having≤1 mm diameter is adjusted so as to come into the range of 50-70 mass% by applying a prescribed treatment to the ore with high crystal water, e.g. a grading treatment with a crusher 2 and a screen, and this is mixed with the remained new raw material 3, powdery coke 5 (solid fuel) and returned ore 4, and granulated to prepare pseudo grain 18, and the sintering raw material is used and sintered by using a fire grate moving sintering machine 19. COPYRIGHT: (C)2004,JPO
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