Measurement and control system of the plasmatron plasma reactor for recovery of metals from printed circuit board waste

Abstract

The article presents the measurement and control system of plasmatron plasma reactor for utilization and recovery of metals from waste of printed circuit boards built in the Industrial Research Institute for Automation and Measurements in Poland. The plasma reactor is the key component of a test stand developed to conduct research on processing and recovery of metals from used electric and electronic equipment, especially from electronic printed circuit boards. The system allows, recording multiparametric measurements realized in real time and time-correlated, visualization of current values of measurements and states by means of SCADA software. Besides main functions of data acquisition and visualization, the system allows local and remote control of operation of reactor subsystems. Analysis of measurement chain is presented for the key parameter of reactor work, which is temperature measurement inside the reactor. Standard uncertainty of measurement of the temperature is evaluated and in this case equal to 5 °C.