METHOD FOR INJECTING PULVERIZED FINE COAL INTO BLAST FURNACE

PROBLEM TO BE SOLVED: To provide a method for injecting pulverized fine coal into a blast furnace which can feed a large quantity of the pulverized fine coal into each tuyere in the blast furnace with low pressure loss and also, can stabilize the feeding quantity of the pulverized fine coal and the blast furnace operation. SOLUTION: After distributing each pulverized fine coal into second distributors 12 arranging the same number as the number of the tuyeres 16 in the blast furnace at the tuyere floor part of the blast furnace from a first distributor 11 arranged at the furnace top part of the blast furnace or the neighborhood, each pulverized fine coal is distributed into plural pulverized fine coal injecting burners communicatively connected with a blow tube 15 communicatively connected with a peripheral wall of each tuyere 16 and/or each tuyere 16 from each second distributor 12.