1. The drilling fluid shale shaker is a primary solid control equipment in the drilling mud solid-phase control system, which processes and separates a large amount of drilling debris carried by the mud when it returns from the wellhead, allowing the mud to enter the secondary separation equipment.

2. The drilling fluid vibrating screen is designed based on the vibration theory that the screen surface generates a linear motion trajectory. The perpendicular of the two motors forms an angle with the angle between the screen, so that the rotation direction of the two excitation motors is opposite. The excitation force generated by their mutual motion offsets each other in the X direction, and the excitation force is zero. In the Y direction, the exciting forces of the two motors are superposed to drive the whole upper and lower screen boxes to move back and forth along the Y axis, and at the same time, the mud on the screen surface is thrown up along the Y axis, and then moves forward when it falls freely. In this way, the mud is constantly thrown up and down, making the mud move forward. The mud liquid leaks into the mud tank through the screen, and most of the solid particles in the mud are screened out, thus playing a Catharsis role in the mud liquid.