System for a non-invasive online continuous measurement of phase levels in converters or pyrometallurgical furnaces

摘要

A non-invasive online system for continuous measurements of phase levels in a converter or pyrometallurgical furnace in smelting and conversion processes, consisting in a electrical signal generator, transducers that convert said electrical signals in mechanical waves placed on the outer end of air blowing tuyeres, coupling means between said system and the shell of the converter, transducers placed in the direction of the axis orthogonal to the phases plane for applying mechanical waves that travel in a transversal direction into the converter, a mechanical waves sensor placed around the external wall of the shell of the converter that receives the reflected signal, a crystal local oscillator, means for the preamplification of the signal, an analogous/digital interface, a means for data acquisition, a means for processing the signals so as to determine the power of the reflected signal and the propagation time of the signal between the moment it is emitted by the transducer and the moment in which the reflected signals are received by the sensor, a memory means to store the continuous values of the phase levels and a visualization means for displaying the continuous values of the phase levels.