Vibrating screen is not a large equipment, but the vibration sieve failure frequency is the highest, because the vibration device itself is a kind of vibration of the destructive force of a scientific use of a product.
1. The motor turns wrong. In the commissioning of the motor steering, the field operator according to the previous uniaxial vibrating screen or straight screen sieve experience, that as long as the cuttings go forward on the line, but this method does not apply to translational elliptical vibrating screen. If the motor is accidentally rotating inward, the ejection angle is also 45 ° forward, but the cuttings have the force to roll backwards, when the cuttings move forward much slower, stay on the screen for a long time, Resulting in cuttings can not be discharged.
2. The accumulation of clay is too small, it is difficult to sieve under the condition of polymer drilling fluid, can not effectively overcome the sticking force of cuttings (clay), resulting in the accumulation of cuttings on the screen and quickly damage the screen.
3. Screen and screen frame is not tightly supporting the screen after the wear of the screen can not reliably contact with the screen, the screen is not reasonable taut.
4. Screen quality difference Screen generally have the upper sieve layer and the lower part of the stress layer, requiring the two layers between the close fit, if the screen pre-tensioning process is poor, when the bottom of the screen force Tight, the sieve layer is not tightened, the work of the drill bit throwing force greatly reduced, can not discharge cuttings.
