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High efficiency reciprocation piston drilling mud pump

2022-02-10 10:32:48

Mud pump, refers to the drilling process to the drilling mud or water and other flushing liquid machinery. Drilling mud pump is an important part of drilling equipment. In the common positive circulation drilling, it is the surface washing medium-clean water, mud or polymer washing liquid in a certain pressure, through the high-pressure hose, faucet and drill pipe column center hole straight to the bottom of the drill, in order to cool the drill, will cut down the debris removal and transport to the surface of the purpose.

drilling mud pump

Commonly used reciprocation piston drilling mud pump is piston or plunger type, driven by the power of the pump crankshaft rotation, crankshaft through the crosshead to drive the piston or plunger in the pump cylinder to do reciprocating movement. Under the alternating action of suction and discharge valves, the purpose of pressing and circulating washing liquid is realized.

The two main parameters of mud pump performance are displacement and pressure.

The displacement is calculated by discharging a number of liters per minute, which is related to the diameter of the hole and the speed of flushing liquid required from the bottom of the hole, that is, the larger the aperture, the larger the required displacement. It is required that the up-return speed of the washing fluid can wash the cuttings and rock powder cut by the drill bit out of the bottom of the hole in time and carry them to the surface reliably. Geological core drilling, the general return speed in 0.4 ~ 1.0 m/min or so.

The pressure of the pump depends on the depth of the drilling hole, the resistance of the channel through which the flushing fluid passes and the properties of the flushing fluid. The deeper the hole is drilled, the greater the resistance of the line and the higher the pressure required.

high efficiency drilling mud pump

With the change of the diameter and depth of the drilling hole, the displacement of the pump can be adjusted at any time. In the pump mechanism is provided with a gearbox or a hydraulic motor to adjust its speed, in order to achieve the purpose of changing the displacement. In order to accurately grasp the changes in the pressure and displacement of the pump, the drilling mud pump to install flowmeter and pressure gauge, at any time so that the drilling personnel understand the pump transport, turn the situation, at the same time through the pressure change to determine whether the hole condition is normal to prevent accidents in the hole.

Matters needing attention of drilling mud pump

Before starting the mud pump, please check whether the inlet pipe and outlet pipe are blocked, whether the forward and rear bearings are filled with butter, and check whether the root is full. High efficiency drilling mud pump work should be equipped with high pressure water pump, will be greater than the mud pump pressure of water to the leakproof packing, protection of the packing, mud pump work should not be closed flushing pump, otherwise, will make the seal part quickly wear. Whether the clearance between impeller and guard plate is reasonable has a great impact on the life of mud pump. If the clearance is not reasonable, the pump will produce vibration and noise when running, and the flow parts will be damaged quickly. Therefore, when replacing the impeller, attention should be paid to the clearance meeting the requirements of the drawings. The clearance adjustment can be carried out by adjusting screws on the back bearing body. The allowable suction range of mud pump is measured when conveying clean water, and the influence of mud on suction capacity should be considered when pumping mud.

Maintenance of drilling slurry mud pump

Construction departments shall have specialized maintenance personnel responsible for the maintenance and repair of construction machinery. Regular inspection and maintenance of reciprocation piston drilling mud pump and other machinery, early problems to solve, so as not to cause shutdown. Construction should pay attention to the size of sediment particles, large particles will often check the vulnerable parts of the mud pump, in order to timely maintenance or replacement. High efficiency drilling mud pump vulnerable parts are mainly pump shell, bearings, impeller and so on. Adopting advanced anti-wear measures to improve the service life of vulnerable parts can reduce engineering input and improve production efficiency. At the same time, fragile parts should be always available for timely replacement.

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