Patent ID: 9581387
Date: 2017-02-28
CPC Classifications: C21B,C21C,F27B,Y02P,Y02W

Claim:
1. A method of ironmaking, comprising: directly transferring coke manufactured by a coke oven into a first transmit silo through a closed first transferring device, directly transferring sinter manufactured by a sintering machine into a second transmit silo through a closed second transferring device, and directly transferring pellet manufactured by a pellet firing machine into a third transmit silo through a closed third transferring device; transferring the coke in the first transmit silo into a closed fourth transferring device via a first weighing hopper connected with the first transmit silo through a pipeline or a closed chute, transferring the sinter in the second transmit silo into the fourth transferring device via a second weighing hopper connected with the second transmit silo through a pipeline or a closed chute, and transferring the pellet in the third transmit silo into the fourth transferring device via a third weighing hopper connected with the third transmit silo through a pipeline or a closed chute, the coke, the sinter, and the pellet transferred into the fourth transferring device having a predetermined weight ratio; and distributing the coke, the sinter, and the pellet in the fourth transferring device into an ironmaking furnace to be smelt, wherein the coke, the sinter, and the pellet transferred into the fourth transferring device have temperatures of 100-1200° C., 100-1000° C. and 100-1400° C., respectively, wherein oxygen and preheated combustible gas are injected through a first tuyere disposed in a lower portion of the ironmaking furnace in an amount of 200-600 m