| 摘要 |
PURPOSE:To accurately grasp the falling loci and distribution conditions of blast furnace raw materials by providing the probe arrayed with multiple pressure-sensitive measuring members between lower-bell opening parts and furnace circumferential walls and detecting the passage amount of descending raw materials by the respective specific positions in the bell system raw material charging device of a blast furnace. CONSTITUTION:The probe 15 consisting of the measuring part 16 mounted with multiple pressure-sensitive members 22 in one row and support part 17 is installed between the lower side of the opening part on the lower bell 7 side of the bell system raw material charging device of the blast furnace and furnace circumferential walls 2b. The pressure-sensitive members 22 are constituted by the cells built-in with piezo-electric elements 25 and convert the load amount of the time when the coke, iron core, etc. being the charging raw materials fall into the furnace to electric signal or the change in the load to the change in magnetic field and continuously and electrically detect the load of the coke and iron ore in the respectige specific positions of the pressure-sensitive members 22. From these detected values, the falling loci in the respective positions of the coke and iron ore and their distribution states are surely grasped. |
