IRON ORE SINTERING METHOD BY RECIRCULATING EXHAUSTED GAS AND DEVICE THEREFOR

摘要

The present invention relates to an exhaust gas circulating iron ore sintering method and apparatus thereof, and to provide an exhaust gas circulating iron ore sintering method and apparatus that can significantly reduce the amount of exhaust gas in the existing sintering machine without significant equipment expansion. There is a purpose.;The present invention is a sintered bogie for transferring the sintered raw materials, iron ore which is located in the lower portion of the bogie including a plurality of winds to suck the air required for the sintering reaction and the main exhaust pipe for sending the exhaust gas sucked through the wind after the sintering reaction to the dust collector In the method of sintering iron ore using a sintering machine, a reference position where the temperature of the flue gas sucked through the wind rises rapidly is obtained, and air is injected upward through the wind phase after the reference position where the flue gas temperature rises sharply. The sintered raw material after the reference position where the temperature rises sharply is sintered by the air injected into the upper part through the wind phase, and part or all of the sintered raw material before the reference position where the exhaust gas temperature rapidly increases is injected into the upper part through the air phase. To sinter by circulating and reusing exhaust gas generated after sintering reaction An exhaust gas circulation iron ore sintering method and the apparatus as a base.