| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a high-intensity and high-quality sintered ore having an excellent reducibility at a high yield, by using a downward-suction type sintering machine to combust a carbonaceous material and gas fuel in a charged layer. <P>SOLUTION: The method includes steps of: charging a sintered material containing a fine ore and the carbonaceous material on a circulating pallet to form the charged layer; igniting the carbonaceous material of a surface of the charged layer; sucking air above the charged layer containing the gas fuel diluted to a combustion lower limit concentration or lower with a wind box located under the pallet to lead the air into the charged layer; and combusting the gas fuel and the carbonaceous material in the charged layer to manufacture the sintered ore. Part of high porosity is formed on both sides of the pallet of the sintering machine in the width direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
