TEMPERATURE-MEASURING DEVICE FOR ROTARY KILNS

摘要

A temperature-measuring device for rotary kilns, comprising a stripping sleeve, which is rigidly mounted in a bore in the shell of the rotary kiln and protrudes to some extent into the rotary kiln, and a thermocouple, which is disposed in a protective tube, which is movably disposed in the stripping sleeve and secured to a lifting a lowering device, which is mounted on the outside of the shell. The ceramic ring is disposed in the stripping sleeve at its lower end, the lower end of the protective tube is mounted in the opening of the ceramic ring, the upper end of the protective tube is secured to a rod, which is coaxially guided in the lifting and lowering device with respect to the opening of the ceramic ring, the rod is first lowered toward the shell by the lifting and lowering device when it is desired to clean the protective tube and is then lifted so that the protective tube is retracted until its lower end is disposed in the ceramic ring, and the rod is lowered for a measurement of temperature to such an extent that part of the protective tube protrudes from the ceramic ring.