| 摘要 |
PROBLEM TO BE SOLVED: To provide a modified coal material for producing a sintered ore by suppressing NOx generation in a low temperature region without disturbing the productivity of a sintering machine, and a method for producing the same. SOLUTION: The modified coal material for producing a sintered ore is prepared by coating the surface of the coal material with a coating material containing≥36 mass% Ca derived from a lime-based raw material, wherein the Ca content in the surface coating material of the modified coal material having≥1 mm size is 4-42 g/m<SP POS="POST">2</SP>and the Ca content in the surface coating material of the modified coal material having≥0.25 mm and <1 mm size is 5-20 g/m<SP POS="POST">2</SP>. COPYRIGHT: (C)2012,JPO&INPIT |
