Mud pump working principle

Mud pump, is a machine that delivers flushing fluids such as mud or water into the borehole during the drilling process. Mud pump is an important part of drilling equipment. In the commonly used positive circulation drilling, it is the surface flushing medium - water, mud or polymer flushing fluid at a certain pressure, through the high-pressure hose, tap and drill pipe column centre hole straight to the bottom of the drill bit, in order to achieve the cooling of the drill bit, the cutting down of the rock debris to remove and transport to the surface of the purpose. Commonly used mud pumps are piston or plunger type, driven by the power engine pump crankshaft rotation, the crankshaft through the crosshead and then drive the piston or plunger in the pump cylinder to do reciprocating motion. Under the alternating action of suction and discharge valves, the purpose of pressurising and circulating the flushing fluid is achieved.