Mining

Safe backfilling

High production costs, safety concerns, environmental aspects and so on are forcing mine operators to undertake extensive restructuring. Backfilling of residues from mines and power stations plays an important role. The core components of such installations are S-transfer tube pumps (KOS), seat valve pumps (HSP) and ZX piping systems from Putzmeister:

■   Conveying distances up to 11 km from the mixing facility located on the surface to the backfill location underground and with no pumps installed on route

■   Up to 400 m3/h conveying capacities

■   Up to 150 bar operating pressure

■   Suitable for abrasive material

Advantages of the system

• Closed loop of washery tailings: mine pit – treatment – mine pit
• Increased stability of the mining structures
• Better exploitation of deposits
• Safe and clean transport in pipelines
• High operational safety and reliability
• Low wear costs
• Lower specific energy consumption
• Reduced water circulating