Safety in mining is not just about procedures and training – it’s also about infrastructure capable of responding swiftly to potential hazards. One of the greatest challenges in copper ore mines is uncontrolled inflow of underground water. This exact situation occurred at the Polkowice–Sieroszowice Mining Division (O/ZG), where MWM Elektro, as the main subcontractor for PeBeKa, completed the main drainage pump station project, delivering the full scope of electrical, teletechnical, automation, and control systems.
The problem: sudden increase in water inflow
In October 2019, a significant increase in water inflow into the workings was detected in the G-63 mining front area. The volume exceeded the capacity of the existing drainage system. This posed a real threat to worker and equipment safety, and to the continuity of mining operations. A rapid response was required – designing and launching a high-performance drainage system.
The solution: a comprehensive pump station project
MWM Elektro, working closely with the Polkowice–Sieroszowice Mining Division and PeBeKa, launched a complex project that included:
• Flood pipeline to sedimentation tanks – 2,200 meters
• Sedimentation tanks and clarifiers – 24,560 m³ capacity
• Overflow Pump Station – 9 pumps, each with 132 kW power
• Piping connecting the pump station to the collectors – 2,800 meters
• Collectors – 2,200 m³ capacity
• Main Drainage Pump Station – 9 pumps, each with 2,600 kW power
• Duplex steel pipelines – 1,200 meters
• 10 kV switchgear (42 fields), transformer chambers, and teletechnical rooms
Control and automation
Both the Overflow Pump Station and the Main Pump Station were equipped with advanced control and visualization systems. These include:
• Automated pump start-up at the press of a START button
• Individual control panels for monitoring key parameters (pressure, temperature, vibrations, water levels)
• Central control cabinets enabling full system operation
• A dispatcher system providing remote access and surface-level control
The result: safety and operational continuity
Thanks to the newly implemented infrastructure, the water hazard was not only neutralized – a modern and future-proof drainage system was created, providing full control over water removal from mine workings.
“Due to its complexity and the challenging underground working conditions, this was one of the most demanding projects our company has ever delivered. However, thanks to our extensive experience and excellent cooperation with all parties involved, we completed it ahead of schedule and with full safety.” — eng. Bartłomiej Siwecki, Deputy Director of Design and Installation, MWM Elektro.
A trusted partner for heavy industry
MWM Elektro supports industrial clients at every stage – from consulting and design, through prefabrication and installation, to warranty and post-warranty service. The drainage project at Polkowice–Sieroszowice proves that modern technology and industry expertise are essential for maintaining safety in mining operations facing very real risks.