Shotcrete Pumping Solutions for Underground Mining

This page explains what shotcrete is, how the wet-mix process works, and why underground mines apply it to newly excavated rock. It also examines the pumping challenges created by viscous material, aggregates, fibers, restricted working space, and the need for consistent delivery.

This page examines how mix consistency, aggregate grading, fiber characteristics, delivery rate, transfer distance, pipeline resistance, and underground access influence equipment selection. It also explains why the normal operating point matters more than maximum capacity and how progressive cavity technology fits the transfer requirements.

This page follows the material from the receiving hopper through the pump and delivery line to the spraying equipment. It explains how inlet conditions, pipeline diameter, bends, elevation changes, pressure development, cleaning access, and changing underground distances affect system performance.

This page looks at how material preparation, feeding, pressure behavior, planned pauses, cleaning, wear, and maintenance access influence the shotcreting cycle. It explains why continuous operation depends on recognizing changing conditions early and managing unavoidable stops before the material stiffens in the system.

This page explains how fiber type, dimensions, dosage, distribution, and interaction with the complete mix affect workability and pumpability. It also shows why uniform dispersion must begin during mixing and why the hopper, pump, pipeline, and downstream connections must suit the combined material.

This page focuses on stored pressure, isolation, depressurization, blockage response, cleaning, line-of-fire control, and the condition of pipelines, couplings, and hoses. It distinguishes reliable pump performance from the site procedures, safeguards, and competent operation required to control underground work.

This page brings the complete duty together around the SEEPEX BNM progressive cavity pump. It explains how high suction capability, low-shear product handling, uniform flow without pulsing, accurate dosing, and high-pressure output support wet-mix shotcrete transfer. It also covers the BNM Maintain in Place design. These features support defined service activities without removing connected pipework or dismantling the complete pump.