Mud pump is a pump products, its performance in the two main parameters is the displacement and stress. Displacement to per minute discharged from a number of liters calculation, it and the hole diameter and the required washing liquid from the bottom of the hole rate of return of about, that is, the larger the aperture, the required displacement is larger. It is required that the speed of the washing liquid can be cut down from the drill bit, and the rock powder can be washed away from the bottom of the hole in time, and can be reliably carried to the surface. Geological core drilling, the general rate of return in 0.4 ~ 1 m / min.
The mud pump pressure depends on the depth of the hole, the resistance of the channel through the flushing fluid and the nature of the transport of flushing fluid, etc.. The deeper the drill hole, the greater the resistance of the pipeline, the higher the pressure required. Along with the change of the diameter and depth of the hole, the displacement of the pump can be adjusted at any time. A gear box or a hydraulic motor is arranged in the mechanism of the pump to adjust the speed of the hydraulic motor to achieve the purpose of changing the displacement.
In order to accurately grasp the changes in the pump pressure and displacement, the mud pump to flow meter and pressure gauge installation, at any time so that staff understand the drilling pump operation, at the same time the pressure changes discriminant hole condition is normal in order to prevent the occurrence of accidents in the hole.
