| 摘要 |
PROBLEM TO BE SOLVED: To obtain a method and apparatus for injecting pulverized fine coal with which even in the case of simultaneously injecting the pulverized fine coal and waste plastics through a part among the plurality of tuyeres, uniform combustion can be obtained in the whole used tuyeres without developing the shortage of oxygen in these tuyeres. SOLUTION: In the method for injecting the pulverized fine coal, by which the pulverized fine coal flowing carried with pneumatic transportation is divided with the plurality of branch pipes 11 with a divider 9 and the divided pulverized fine coal making flow of a part of the branch pipe 11a, is injected into a blast furnace 2 as it is, and the pulverized fine coal making flow of the remaining branch pipe 11a is injected into the blast furnace 2 by colliding against powdery or fine piece synthetic resin material, resistant means 13, 19 as the resistance of the gas-flowing are arranged at the downstream side of the divider 9 in the remaining branch pipe 11a and the pulverized fine coal amount making flow of this branch pipe 11a is made to be less than the pulverized fine coal amount making flow of the branch pipe 11b injecting only the pulverized fine coal. COPYRIGHT: (C)2005,JPO&NCIPI
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