Patent EP-2407261-A1 (EP)
Inventor: EBNER HELMUT
IPC: B22D41/08
Filed: 2010-07-16
Abstract: The method of automatic layer recognition of spouts of a metallurgical vessel such as a converter, a pan or a casting distributor by a measuring device (1) with a contactless working measuring grid (3), comprises: positioning the measuring device vertically below the spouts so that the spouts cut neither the measuring device nor affect the measuring grid and a measuring curtain (8); processing the measuring device vertically to a top into a first position; and contactless detection of a first and second component of the actual position of the spouts. The method of automatic layer recognition of spouts of a metallurgical vessel such as a converter, a pan or a casting distributor by a measuring device (1) with a contactless working measuring grid (3), comprises: positioning the measuring device vertically below the spouts so that the spouts cut neither the measuring device nor affect the measuring grid and a measuring curtain (8); processing the measuring device vertically to a top into a first position; contactless detecting of a first and second component of the actual position of the spouts by an analysis of a measurement data for a planar, local discretized measuring grid of the measuring device; and pivoting the measuring device in a normal plane to a longitudinal axis of the spouts at an angle of 90[deg] . The measurement data has x-measurement value that is assigned to a first transverse direction of the measuring device and y-measurement value that is assigned to a second transverse direction of the measuring device. The measurement data has measurement value that is closely assigned to a measuring beam (5) of the measuring grid so that the x-measurement value of the actual position of the spouts is determined in the first position in the first transverse direction of the spouts, and the y-measurement value of the actual position of the spouts is determined in the first position in the second transverse direction of the spouts that orthogonally stands to the first transverse direction of the spouts. The measuring device: proceeds after the step of detecting the first and second component to a vertical movement in a second position perpendicular to the top of the device; and is detected during the continuous process of the actual position of the spouts and stopped before the step of detecting the actual position of the spouts. The position of the spouts is detected at the second position. The step of positioning and processing the measuring device is carried out by a multi-axis robot. A control device: is provided during the step of detecting the actual position of the spouts; and calculates a control deviation of a nominal position of the spouts of the actual position and determines with the help of an algorithm of a control variable. The actual position of a multi-function robot impinged with the control variable is positioned closer to the nominal position. The measuring beam is formed as an uninterrupted or interrupted light beam in a range of an infrared visible light or an ultraviolet light. An independent claim is included for a measuring device.