What is the function of a drilling fluid shaker?

　　 Drilling fluid shaker What is the function of ?

　　The Drilling fluid shaker mainly consists of a screen box, a base, and a buffer tank, with the screen box being the most important component. The screen box is primarily composed of side plates, a rear baffle, a lower beam, and an upper beam. The side plates are made of steel plates and are connected on both sides by cross beams, forming an integral structure for the drilling fluid shaker screen box. To enhance the rigidity of the side plates, angle steels are riveted at appropriate locations for reinforcement. The lower cross beam is made of seamless steel pipe or channel steel, while the upper cross beam is made of seamless steel pipe. Since the drilling fluid shaker operates under high-frequency vibration, its frame must not only support the weight of the shaker’s materials but also withstand substantial vibrational forces. Therefore, the frame of the drilling fluid shaker must be extremely robust, possessing sufficient overall rigidity to prevent damage caused by deformation. In addition, the weight of the screen box should be minimized as much as possible to reduce the load on the shaker, thereby increasing the excitation force and processing capacity and ultimately improving the shaker’s performance.

　　Stiffness refers to its resistance to deformation. Drilling fluid shaker During operation, the high-frequency inertial forces generated by the vibration of the drilling fluid shaker frame can cause dynamic deformation of local components, which is often a major cause of beam or side plate fractures. Therefore, enhancing the stiffness of the drilling fluid shaker frame structure, particularly at the joints, is crucial; longitudinal girders should be installed between beams. Additionally, laying the drilling fluid shaker screen on the beams and using large bending steel at the beam–side plate connections are effective measures to improve stiffness.

　　The frame structure typically employs a combination of riveting and welding. Riveted structures offer precise dimensions and are free from internal stresses, making them highly adaptable to vibration; however, their manufacturing process is complex, whereas welded structures are easier to fabricate. Welded structures are simpler to construct, but the intricate welds often result in significant internal stresses. To relieve these stresses, stress-relief annealing is performed. Since the drilling fluid shaker uses building-material stone for its screening, it falls into the category of small- to medium-sized vibratory drilling fluid shakers, so economic considerations should guide the selection of welded joints. The design is based on vibration theory that generates linear motion trajectories on the screen surface. The vertical lines of the two motors are set at an angle relative to the screen tube, causing the two excitation motors to rotate in opposite directions. As a result, the excitation forces they generate in the X direction cancel each other out, yielding zero net excitation force. Meanwhile, the reciprocating vibrational forces of the two motors in the Y direction drive the entire screen frame to move up and down along the Y axis, simultaneously propelling the slurry across the screen mesh in the Y direction and causing it to fall freely downward. Consequently, the slurry is thrown forward, with fine particles passing through the screen into the mud tank while solid particles are retained, thus achieving the purpose of slurry purification.

　　 Drilling fluid shaker It is the primary solids-control equipment in the drilling-fluid system and also a critical first-stage unit. Its main function is to remove larger particles from the drilling fluid, making it an indispensable component of the solids-control system.