High-Concentration Mine Backfilling Solution for Ansteel Dagushan | Kaiquan Slurry Pump

In the global mining industry, sustainable green mining and backfilling technologies require highly robust equipment capable of handling extreme wear and high solids concentration. Shanghai Kaiquan Pump Group successfully supplied an integrated slurry transport solution for Ansteel Mining Group's Dagushan Backfilling Project, setting a new benchmark for reliable and energy-efficient mine backfilling operations.

Project Background & Core Challenges

Mine backfilling operations involve pumping high-concentration slurry (solid content over 50%) containing large particles over long distances under highly abrasive conditions. Traditional pumps often suffer from frequent seal leaks, rapid impeller wear, and high energy consumption.

Engineered Technical Solution

Kaiquan engineered a customized heavy-duty pumping system optimized for high-density slurry transport:

High Capacity & CFD Simulation: The slurry pump delivers a rated flow of up to 2,500 m³/h with a 78 m head. The pumps feature a heavy-duty horizontal structure with enlarged impellers and low-speed designs optimized via CFD multiphase flow simulations.

Double-Casing & Ultra-Hard Materials: Designed with a dual-shell structure, the inner casing utilizes KmTBCr27 high-chromium alloy heat-treated to over HRC60 hardness—delivering more than 10 times the wear resistance of carbon steel.

Differential Sealing System: For multi-stage series pumping, Stage 1 uses an expeller + packing seal for zero-leakage operation, while Stage 2 employs high-pressure shaft seal water to prevent abrasive slurry penetration.

VFD Smart Control: Variable frequency drives adjust motor speed in real-time based on slurry concentration and flow variations.

Measurable Operational & Financial Benefits

15%–20% Power Consumption Reduction: Smart VFD operation avoids motor overloading and cuts electricity costs significantly compared to fixed-speed pumps.

Extended Wear Life (8–12+ Months): The average lifespan of wet-end parts increased from the industry standard of 3–6 months to 8–12 months (exceeding 15 months in specific sections).

30%+ Reduction in Maintenance Expenses: Longer component lifespan and zero unplanned downtime reduced annual spare parts and maintenance costs by over 30%.

Lifecycle Technical Support: Kaiquan provides 24-hour emergency spare parts dispatch and full lifecycle engineering service.

Project Results

Matching advanced hydraulic engineering with custom material science is critical for high-concentration backfilling. Contact Shanghai Kaiquan's mining experts today to request a tailored slurry pumping assessment for your facility.