Method for measuring and aligning a rotary cylindrical apparatus

摘要

A method for measuring and aligning a rotary cylindrical or other rotationally symmetrical apparatus, such as a kiln or a drum. The apparatus to be measured and aligned has a shell and at least one supporting ring. As the rotary apparatus is rotating under process conditions, measurement points are measured on the surface of the rotating object's shell in the axial direction on both sides of each supporting ring on the same circumferential line. Regression circles are calculated from the measured points, center points are determined for the calculated circles and a straight line and its center point are determined between the center points of the circles calculated on both sides of each supporting ring. A reference straight line is calculated for the center line of the shell and the object's shell is aligned to be straight by transferring the determined center points of the shell to the calculated reference line.

主权项

1. A method of measuring and aligning a rotating apparatus, wherein the rotating apparatus includes a shell and at least one support ring around the shell, wherein the support ring is seated on support rollers, the method comprises:
measuring measurement points on the shell of the rotating apparatus, directly from the surface thereof, in the axial direction on both sides of the support ring and along the circular measuring lines each at substantially equal distances from the support ring, calculating circular regressions from the measured measurement points for each of the circular measuring lines, determining a center point for each of the circular regressions, determining a line segment extending between the center points of the circular regressions, determining coordinates for a center point of the line segment, which center point corresponds to a center point of rotation of the shell, calculating a reference straight line as a center line of the shell, calculating a distance from the center point of the line segment to the reference straight line, and aligning the shell of the apparatus to be straight by transferring the determined center points of the line segments between the circular regressions to the calculated reference line.