Vibrating screen is the only material cleaning device for most drilling rigs.
Shale shaker is used in the first stage of drilling fluid treatment, but for most drilling rigs, shale shaker is the only material cleaning device.
Shale shaker is used in the first stage of drilling fluid treatment, but for most drilling rigs, shale shaker is the only material cleaning device. In some cases, after the drilling fluid passes through the sieve plate of the unit, additional cleaning may be carried out in the hydrocyclone and sludge separator.
Sieve plate and vibrating box:
Vibrating screen is a means of rough washing drilling fluid, but it is also basic. Its load is very large, so we must pay great attention to this equipment. Vibrating screen is used to weigh drilling fluid, which is almost the only efficient technical means. The number of vibrating screen boxes that may be required when using the drill depends on the volume, working range and strength of the drill. Based on this, select the vibrating screen with specific parameters - size, capacity, etc.
How does the vibrating screen work?
Any shale shaker model adopts similar technology: entering a special power container, the moving speed of drilling fluid is reduced, and the mud is transported to the screen evenly and gradually. The frame on which the screen is installed begins to move - vibration is necessary to distribute the solution on the screen. The vibrating motion of the screen makes the solution evenly distributed on the cassette tape, the material is screened out through the dispersion net, and the largest mud particles remain on the surface, that is, sludge. Then, after treatment, put the sludge into the end of the sieve plate and discharge it without interfering with the further work of the device.
The waste liquid is sent to the mud collector through the screw conveyor. The refined drilling fluid is discharged into a container called a purification block Additional cleaning can then be carried out and the material is then fed into the rig for further use.
Therefore, vibrating screen is used in drilling fluid desilting in mining industry In this device, the solution is cleaned and screened by mechanical method to separate large particles. The degree of cleaning is determined by the passing characteristics of the sieve plate. The smaller the cell size, the higher the screening capacity.
The performance of the shale shaker also depends on the type of sludge, so if it is mainly composed of sand, the screening process will be faster. If the slurry is cohesive clay, the screening will be carried out slowly. The efficiency of the device depends on the period of time the sludge stays on the grid.
