| 摘要 |
PURPOSE:To reduce pores in a combustion zone and to improve the strength and yield of sintered ore by applying a downward pressure to an iron ore bed in a sintering apparatus with a pressurizing unit placed in the surface of the bed and by carrying out sintering. CONSTITUTION:Pressurizing rollers 11 are arranged on a bed 3 in a sintering apparatus in a zone ranging from a firing furnace 2 to the ore discharging part so as to regulate a pressure applied downward from the top with a cylinder. A downward pressure is applied to the bed 3 from the top and sintering is carried out. By this method, pores in the combustion zone are reduced and the strength and yield of sintered ore are improved.
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