Rapid damage to the screen is one of the common problems of vibrating screens.What are the reasons for shortening its life span?The main reasons are clay accumulation, motor steering error, loose fit between the screen and the screen frame, and poor quality of the screen.Let us explain them further.

1. Clay accumulation

If the vibration amplitude of the vibrating screen is too small, the viscosity of the clay cannot be effectively overcome, causing the clay to accumulate on the screen and quickly damage the screen.

solution

1) Increase the vibration amplitude；

2) Rinse the screen and clay with water spray to reduce the viscosity, but this method is only suitable for occasions where water can be added.；

3) Adjust the angle of the screen at the sand outlet downwards to facilitate the discharge of materials by gravity；

4) Change the mesh of the screen or adjust the flow rate of a single screen to make the material discharge smoothly.

2. The motor direction is wrong

When the on-site operator is debugging the direction of the motor, according to experience, it is believed that as long as the material moves forward, it can be done.However, this method is only applicable to single-axis vibrating screens or linear screens, not to flat elliptical vibrating screens.If the motor rotates inward by mistake, the ejection angle is also 45° forward, but the material has the power to roll backwards.At this time, the speed of moving forward is much slower, and the material stays on the screen for a long time, which may even lead to the inability to discharge the material.

solution

1) When the screen box is running, press the stop button of the electric control box.The vibrating screen will slowly stop.Observe the elliptical trajectory formed by the dots on the side panel of the vibrating screen when it is running.The correct direction is to roll in the direction of the sand outlet.

2) Remove the vibrator shield and check whether the eccentric block rotates outward.

3) Replace any two-phase line of the power supply of the electric control box, sprinkle some sand on the screen, and take the direction of faster sand discharge as the correct direction.

3. The screen does not fit tightly with the screen frame, and the quality of the screen is not good.

After the rubber strip supporting the screen is worn out, the screen cannot be reliably contacted; the screen is not tightened correctly.

The screen generally has an upper screen layer and a lower force layer, which requires the two layers to fit tightly.If the pre-tensioning process of the screen is not good, when the force layer at the bottom of the screen is tightened, the screen layer is not tightened, and the throwing force of the material is greatly reduced during operation, and it cannot be sieved and discharged smoothly.

solution

Replace the high-quality screen.