The invention relates to fluid pumping equipment, in particular to a high-pressure
slurry conveying pump
system and method. The high-pressure
slurry conveying pump
system comprises a power
system anda hydraulic system. The power system comprises a hydraulic
oil tank, a main motor, a main
oil pump, a hydraulic
reversing valve, a cooler and main oil cylinders. The hydraulic system comprises conveying cylinders, a feeding subsystem and a discharging subsystem. The high-pressure
slurry conveying method comprises the steps that firstly, the hydraulic
oil tank, the main motor and the main oil pumpcontrol pistons in the main oil cylinders to do
reciprocating motion through switching of the hydraulic
reversing valve; secondly, the pistons in the main oil cylinders drive pistons in the conveyingcylinders to do
reciprocating motion; and thirdly, when the pistons in the conveying cylinders move backwards, a feeding conic valve is opened, a discharging conic valve is closed, slurry is sucked infrom a feeding
pipe, when the pistons in the conveying cylinders are pushed forwards, the feeding conic valve is closed, the discharging conic valve is opened, and the slurry is discharged from a discharging
pipe. The high-pressure slurry conveying pump system and method have the advantages of being high in conveying efficiency, safe and reliable to use, simple in structure and flexible in mounting.