Metallurgical device with self-powered sensing

A metallurgical device, comprising:

• at least one machine part rotatable about an axis;
• an energy consumer arranged on or in the machine part;
• and an energy source in electrical connection with the energy consumer, wherein the energy source is a generator in connection with the rotating machine part for rotation therewith, wherein the generator is otherwise free of any mechanical connection with the metallurgical device and wherein the generator is a housing element, on which at least one eccentric mass is arranged at a location that is at a distance radially from the axis, wherein the generator has two metal plates arranged parallel to one another and spaced apart axially from one another, wherein a number of coil rings arranged on a carrier element are arranged between the metal plates, wherein the metal plates are a component part of the housing element, wherein the housing element is mounted rotatably in relation to the rotatable machine part by bearings and wherein the carrier element is connected to the rotatable machine part for rotation therewith.