| 摘要 |
PURPOSE:To measure exactly the layer thickness distribution and descending speed distribution of the raw material charged into a blast furnace by providing movably in and out >=2 pieces of guide pipes to the blast furnace in the height direction thereof and measuring the load of the charge exerted to the weight attached by wires to the inside of the furnace through said pipes. CONSTITUTION:The plural guide pipes 3 are attached freely movably in and out at specified intervals through the wall 1 of the blast furnace in the height direction thereof and the wires 4 are passed into the pipes 3 from the outside of the furnace. The weight 5 is preliminarily attached to the top end of the wire. The weight 5 receives the load of the charged raw material 2 descending in the furnace and the downward force acting on the weight 5 is transmitted to a load converter 7 in a load detector 6 through the wire 4. The change in said force is detected as a strain output by a strain gage 8. Each pipe 3 is put in and out to change the position of the top end thereof from the furnace core to the furnace wall in the radial direction by which the layer thickness distribution and descending speed distribution of the charged raw material 2, i.e., ore, coke, etc., are detected exactly and the distribution of the charged raw material is adjusted to stabilize the furnace condition. |
