Pump system for handling a slurry medium

A pump system for pumping a slurry medium, the pump system comprising:

• a first positive displacement pump and a second positive displacement pump reciprocating out of phase with the first positive displacement pump;
• a slurry suction/discharge unit including a discharge outlet and a one-way valve positioned in the discharge outlet;
• a main outlet fluidly coupled to the discharge outlet;
• a damping unit including a damping pump fluidly coupled to the main outlet;
• a drive unit for driving the first positive displacement pump, the second positive displacement pump, and the damping pump;
• wherein the drive unit comprises a drive motor, a first hydraulic pump driven by the drive motor, and a second hydraulic pump driven by the drive motor;
• the first hydraulic pump is fluidly coupled to the first positive displacement pump and the second positive displacement pump;
• and the second hydraulic pump is fluidly coupled to the damping unit;
• wherein the damping pump includes a first hydraulic piston positioned within a first hydraulic cylinder, and a slurry piston connected with the first hydraulic piston;
• wherein the damping pump includes a second hydraulic piston positioned within a second hydraulic cylinder;
• wherein the second hydraulic piston is driven by the second hydraulic pump;
• and
• wherein the damping pump includes a hydraulic damping line interconnecting the first hydraulic cylinder and the second hydraulic cylinder.