The Commissioning and Start-Up activities of the Pump Station 2 for Bauxita Paragominas Mining Pipeline Project was performed between August 14th and August 20th 2013.
The engineering of this station was carried out by BRASS in 2009 and includes 6 GEHO TZPM2000 positive displacement main pumps and all necessary auxiliary systems such as seal water for centrifugal charge pump, station & control air system, motor & VFD cooling system and fire protection system. The pump station (PS2) is also provided with 1 unit concentrate receiving and storage tank
In general, the 24" Bauxite Pipeline is 246 km in length and has 2 Pump Stations, 4 Monitoring Stations and 1 Valve and Transfer Station which distributes flow to two independent Terminal Stations: Barcarena and Alunorte.
PS2 is a key component for the expansion plan which is to raise the production from 11,47 Mtpa. to 14.85 Mtpa. The system is designed to operate flexibly either with the original pump station (PS1) alone (in case of low production) or in booster mode, with the second pump station (PS2) in series, increased production.
During start up, the system performed exceptionally well meeting design target requirements, such as, working pressure, flow rate and throughput. During the running of the 6 main pumps it was observed that the station piping were stable and did not experience any excessive vibration.
Hydro Operations Personnel (project operators) were truly satisfied with the Station general performance in either manual or automatic mode.