Vibrating screen is in use process will appear a variety of problems, which appear to run pulp, through analysis and summary, primarily with high solid content in drilling fluid and mud viscosity is high, the drilling cuttings scattered by screening materials such as factors; With small vibrating screens vibration, high screen mesh, mesh about their own conditions of the area is small; With the installation of the vibrating screen the direction and the liquid inlet location also has a lot to do, some analysis about these points can be done. Espeacially the effect of motor on vibrating screens.
Check the motor steering of linear vibrating screen is correct. First vibrator shield, check whether two motor eccentric block spin to both to the lateral rotation. Second, if the steering error, please switch power feeder of the electric cabinet in any of the two phase line.Toward the inside of the wrong way (two motor rotation), although also can eliminate cuttings outward, but slow;Wrong way two (two motor rotation direction), vibration force is small, the basic line of sand or mud.
Check the amplitude of the vibrating screens. The larger the vibration amplitude of general capacity is relatively greater;Dynamic adjustment of 90% at the factory.If there is a run pulp, can be inside and outside eccentric block Angle alignment, the vibration was 100%.(about 15%) increase in the capacity of the mudCheck whether the flow distribution on the screen is reasonable. Crochet mesh structure of the vibrating screens, screen surface is lower than the middle on both sides, the mud is easy to flow to the sides and run, shall ensure that the mud from the middle into the screen. At this point, the two schemes can be used.It is spring seat before the adjustment, appropriate rise Angle in the front of the screen box. Adjustment is extending groove flap gate position, control the flow distribution.
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