This equipment is a core component of the paste backfill pumping system, widely used in coal mine paste backfill, tailings backfill in both metal and non-metal mines, high-concentration tailings discharge, wastewater treatment in the metallurgical and petrochemical industries, and solid waste treatment. It provides a safe and reliable solution for long-distance transportation of complex high-solid-content, viscous materials. The maximum outlet pressure reaches 21 MPa, and the maximum conveying capacity is 500 m³/h.