Mining Tailings Rotary Lobe Pumps

Define the Tailings Stream & Transfer Point

Identify the mineral process and whether the pump handles dilute tailings, thickener underflow, or another mineral slurry. Provide the source and destination, upstream preparation, and expected operating changes rather than treating all mine slurries as one duty.

Concentration & density

State the measurement basis. Provide solids percentage by mass or volume, slurry density, and solids density if available. Include settling and flow behavior after a shutdown.

Particles & liquid phase

Minerals, size distribution, and chemistry. Describe particle sizes, maximum hard solids, shape and hardness, process reagents, pH, and temperature. Tailings chemistry should be established from the actual stream.

Abrasive Wear & Chemical Compatibility

Review particle characteristics, concentration, operating speed, and liquid chemistry together. Abrasion and corrosion can impose different requirements on casings, liners, wear plates, seals, and rotor coverings; neither mineral hardness nor pH alone establishes the material selection.

Confirm the actual component grades and replaceable wear surfaces for the proposed pump. Stainless steel, duplex, or carbide surfaces need assessment against the slurry and component design; a material designation does not establish a service-life improvement.

Rotor Coverings & Particle Passage

Assess polyurethane or other proposed coverings against particle shape, loading, temperature, and chemical exposure. Check maximum hard solids and foreign material against the selected pump’s passage geometry; a soft-solids passage figure is not an allowable rock size.

Inlet Supply, Settling & Pipeline Restarts

Review source levels, pump elevation, inlet restrictions, and how settling changes the material reaching the pump. Include startup after storage or shutdown separately from normal running when assessing drive load and discharge pressure.

Use the complete pipe route to review flow, pressure protection, shutdown, and restart arrangements. Provide any mixing or flushing procedure used at the site. If supply can be interrupted, confirm seal support and allowable exposure for the selected configuration rather than assuming unrestricted empty running.

Wear Inspection & Maintenance Access

Confirm how the proposed pump is isolated, opened, and inspected, which parts are replaceable, and whether the pipeline must be disturbed. Include cover and rotor removal space, lifting access, cleaning arrangements, and spare-part availability in the layout.

Use actual wear history and inspections to plan service intervals. When comparing pump types, include the removal envelope and the components needing replacement rather than assuming a standard repair time or wear life.