At ordinary times, we will encounter various problems when using the vibrating screen, and material deviation is one of the most common problems. Especially in the linear vibrating screen, the possibility of material deviation will be greater. What causes the material deviation, and how to correct the deviation to make the screen work normally? Let me tell you the answer.
First, analyze why the material deviates. The reasons are as follows:
1. the excitation force on both sides of the linear vibrating screen is unbalanced, and the direction of the resultant excitation force is skewed, resulting in material deviation;
2. the rigidity of the screen plate (screen frame) is not enough, and it is twisted rather than translational under the excitation force, resulting in random twisting of materials;
3. the spring stiffness at each angle below the screen box of the vibrating screen is inconsistent, resulting in different heights, which leads to abnormal movement of the running track of the screened materials on the screen surface;
4. uneven feeding, with more materials on one side and less on the other, will inevitably lead to uneven stress on the materials and further make the materials deviate.
Different solutions shall be taken according to the deviation of materials caused by different reasons above. Timely adjusting the operating state of the vibrating screen to the best state is conducive to improving the screening efficiency.
1. when the exciting force is unbalanced, the eccentric blocks of the vibrating motors on both sides shall be adjusted in time to make them consistent;
2. rigidity problem, it is recommended to replace the sieve plate with strong rigidity;
3. if the spring stiffness is inconsistent, it is recommended to replace it properly to ensure the normal screening of materials;
4. during feeding, it is recommended to evenly and continuously lay the materials, which is most conducive to the screening of the screening machine.
The use of the vibrating screen also depends on careful maintenance. It is necessary to regularly check the indicators of the vibrating screen, start and operate the screen after it is qualified, and timely replace and add lubricating oil to the bearing and other parts of the vibrating screen at regular intervals to prolong the service life of the screen.