| 摘要 |
PURPOSE:To use a large quantity of fine particle raw materials without deteriorating the furnace condition by detecting fluidized condition of small particle size charging layer at the time of charging the small particle size raw material into a blast furnace and adjusting operational condition in the blast furnace based on this detection. CONSTITUTION:The changing number of raw material into the blast furnace is divided into two or more and among them; the particle size of one or more charging material layers at is made less than that of the other charging material layers; the surface of the charging material in the blast furnace is radiated with light from a light source 11; and the behavior of the projected particle is caught with a fluidization detector (image fiber) 7. The behavior of this particle is outputted as the projected image on a TV monitor 9 through a TV camera 8 and the image is analyzed with a signal processing system 10 to judge fluidizing condition. In this result, when the fluidization develops, signal for changing position of a movable arm 5 is outputted to a position setter 6 and newly set so as to reduce permeability at the position developing the fluidization. |
