Drilling fluid shaker strength body to meet higher requirements

　　During the drilling operation, as the drilling fluid returns to the wellhead via the circulation system carrying coal and rock cuttings, it is pumped through elevated chutes onto the shale shaker, where it passes through the separation box, Oilfield drilling fluid shaker When the mud tank effluent reaches the Drilling fluid shaker screen, the heterogeneous mixture begins to separate. However, solid–liquid separation equipment operates in a sequential process: when the drilling fluid first enters the shaker screen, it is unlikely that all components will be immediately separated. Instead, under the condition of a small amount of fine solids passing through the screen, the vast majority of the liquid phase quickly separates along the screen surface, forming a slurry layer. As the separation progresses, this slurry layer becomes progressively thinner until it eventually disappears at a certain point. The position where the liquid phase effectively stops is generally referred to as the liquid-phase termination line. Beyond this line, solid particles continue to move forward until they exit the shaker. Under normal operating conditions, the liquid-phase termination line on an oilfield drilling-fluid shaker typically lies approximately two-thirds to three-quarters of the way along the effective length of the screen.

　　Solid particles on the surface of a screen exhibit no more than several types of motion:

　　Relative rest: Particles and particle agglomerates remain in contact with the screen mesh and move together with the screen surface.

　　Forward rolling: the particles and particle agglomerates remain in contact with the screen mesh while simultaneously moving relative to the mesh surface toward the discharge outlet.

　　Reverse rolling: The particles and particle agglomerates remain in contact with the screen mesh while simultaneously moving in the direction opposite to the discharge outlet relative to the screen surface.

　　Throwing perspective: Particles and particle agglomerates are ejected from the screen surface and follow a hyperbolic trajectory toward the discharge outlet.

　　In order to ensure Oilfield drilling fluid shaker Not only does it handle a relatively large processing capacity, but it also achieves a high surface-milling rate; under these conditions, the particles on the screen surface undergo a “throwing” motion. During this throwing process, the particles are propelled toward the discharge outlet in a manner akin to being ejected by a propellant, resulting in reduced contact time and frequency with the screen mesh, which significantly lowers the probability of fine particles passing through the screen. However, it is important to ensure that the instantaneous velocity of the screening process is not excessively high—sufficient only to overcome the adhesive forces between the solid particles and the drilling fluid, thereby enabling their extraction. Excessive normal acceleration will increase the impact of the particles against the screen during their descent, thereby raising the likelihood of substantial passage of fine particles through the screen. Moreover, excessive normal acceleration places higher demands on the structural integrity and dynamic performance of the vibrating screen.

　　Daily maintenance of oilfield drilling fluid shaker:

　　1. During the operation of the Drilling fluid shaker, it is recommended to use several shakers in combination. This not only extends the service life of the bearings but also significantly increases the service life of the screen and other components.

　　2. During operation, if slurry clogging of the screen is detected, immediate cleaning must be carried out to prevent prolonged blockage, which can shorten the service life of the shale shaker.

　　3. During operation, lubricate the equipment with unsalted butter every 24 hours. Regularly inspect and tighten the anchor bolts of the screen box baffles; if any are loose, tighten them immediately.

　　4. When shutting down the shale shaker, promptly rinse the screen with warm water and use a brush to thoroughly clean out the drilling fluid and any sand particles lodged in the mesh openings.

　　5. During lifting, stepping on or striking the screen mesh is prohibited; no objects of any kind are allowed to be placed on the screen mesh during transportation. Prior to lifting and transportation, four straps must be used.