| 主权项 |
1. A blast furnace installation including
a blast furnace main unit, raw material charging means for charging a raw material into the blast furnace main unit from a top thereof, hot air blowing means for blowing hot air into the blast furnace main unit from a tuyere thereof, and pulverized coal feeding means for feeding pulverized coal into the blast furnace main unit from the tuyere, characterized in that the pulverized coal feeding means includes moisture removing means for vaporizing moisture in low-rank coal, pyrolysis means for performing pyrolysis on the coal from which the moisture is removed by the moisture removing means, cooling means for cooling the coal on which the pyrolysis is performed by the pyrolysis means, pulverizing means for pulverizing the coal cooled by the cooling means, a storage tank configured to store the coal pulverized by the pulverizing means, transferring means for transferring the coal pulverized by the pulverizing means into the storage tank with a stream of inert gas, and delivering means for delivering the coal in the storage tank into the hot air that is being blown into the blast furnace main unit. |
