Repozytorium publikacji - Politechnika Gdańska

The project involved designing, constructing and commissioning a cathodic protection system for a selected spiral classifier operating at the KGHM Polska Miedź S.A. Ore Concentration Plant (O/ZWR). The authors developed a concept and assumptions regarding the corrosion protection of a large industrial device using a cathodic protection system with an external power source. Pre-project studies included conducting a trial polarization of one of the 28 classifiers operating at O/ZWR. The obtained results enabled the determination of the protective current demand re-quired and the selection of a target polarization device, ensuring the flow of current with an in-tensity that guarantees that the required corrosion protection level will be achieved. The ulti-mately installed cathodic protection system consisted of an external cathodic protection current source with maximum output parameters of 50V/20A, a power supply system and a polarization anode system. Elements for monitoring corrosion occurring during system operation were in-stalled, which employed reference electrodes of zinc (Zn) and silver chloride (Ag/AgCl) to measure the potential of the structure under cathodic protection. Furthermore, resistive corro-sion sensors were installed to measure the steel corrosion rate under polarization conditions, making it possible to assess the effectiveness of the protection. The system will also be equipped with a prototype system for remote monitoring of the operation of the protection system, ena-bling online observation and analysis of settings and temporary indicators influencing the on-going corrosion processes.

Autorzy

• Marcin Czekajło,
• dr hab. inż. Krzysztof Żakowski link otwiera się w nowej karcie