Measuring apparatus and surface shape measuring method of blast furnace burden interior

摘要

PROBLEM TO BE SOLVED: To provide a method and an apparatus for measuring the surface shape of a charged material in a blast furnace, capable of accurately measuring the surface shape of the charged material as a whole for a short time, which has been charged into the blast furnace and is in a reposed state.;SOLUTION: A laser range finder 12 which can rotate or stop at an angle pitch of 0.2-2 degrees on a two-dimensional plane (horizontal plane) and scan a laser beam 11, in a range of 0-180 degrees on a two-dimensional plane (vertical plane) at each stop position, is disposed at a furnace wall 4 located below a charging device 3 at the blast furnace top section. After an elapse of 30-90 seconds, after charging the material to be charged in the furnace, the laser beam is scanned on the two-dimensional plane (vertical plane) at each stop position on the two-dimensional plane (horizontal plane), and the values of the distance from a deposition surface 13f of the charged material 13 in the furnace are measured at an angle pitch of 0.2-2 degrees; and then the three-dimensional shape of the surface of the charged material in the furnace is estimated (determined) from these measured results, the angles of these measurement points on the two-dimensional plane (vertical plane) and angles in relation to respective stop positions on the two-dimensional plane (horizontal plane).;COPYRIGHT: (C)2006,JPO&NCIPI