Application of electrophysical effects for the monitoring and control of heat-engineering and technological processes

This article reports on industrial-experimental studies and in-plant operations at the Karaganda Metallurgical Combine in which combustion products were analyzed simultaneously with the measurements of the flame potential or the constant component of the ''electrical noise,'' and a carbon analysis of the steel was also carried out in the open-hearth furnaces. The results indicate a representative behavior on the part of the variation of the signal with variation of the oxygen-excess coefficient (air and oxygen). In the sintering of iron-ore materials on agglomeration machines, sensors were mounted in the vacuum chamber beneath the fire grate, and the signal from them was used to monitor the end of sintering, the quantity of fuel in the charge, and its moisture content. The efficiency of utilizing electrophysical effects for the monitoring and control of processes in industrial facilities, with simplicity and reliability on the part of the sensors and secondary instruments used, is demonstrated.