How to Prevent Fast Wear of Polyurethane Screen Decks？
Polyurethane screen decks, if not properly maintained over time, can develop various issues, and one of the most common problems is excessive wear.
Polyurethane screen decks, if not properly maintained over time, can develop various issues, and one of the most common problems is excessive wear. When this happens, it’s essential to assess whether it’s due to quality issues or other significant factors. Let’s analyze the possible causes:
Internal Factors: The polyurethane screen deck may suffer from insufficient tension, causing it to vibrate. This usually leads to cracks or damage along the edges or strips of the screen deck. Regular checks on the tension of the polyurethane screen and ensuring it is securely installed are necessary.
Material Conveying Issues: During continuous feeding into the vibrating screen, if too much material is fed at once, it may obstruct the normal movement of the material on the screen surface. This not only causes the polyurethane screen deck to loosen and wear out more quickly but also reduces the material handling capacity.
Feeding Large Quantities at Once: Feeding a large amount of material at once causes the motor to suddenly experience an unbalanced load, which can not only damage the polyurethane screen deck but also lead to failure of the vibrating motor. Therefore, material feeding should be done evenly.
Strong Impact Feeding: If the material enters the screen with a strong impact, adding a buffer hopper is necessary to reduce the direct impact on the polyurethane screen deck. This helps absorb the excitation force produced by the vibration source, thus reducing the risk of damaging or wearing out the polyurethane screen deck.
Polyurethane Screen Deck Quality Management: The quality of the polyurethane screen deck material is a key factor in preventing rapid wear. If the material quality doesn’t meet the requirements of the screening process, the screen deck will wear out much faster.
When choosing polyurethane composite screen decks, pay attention to the appearance and quality. Ensure that the surface is smooth, the screen is flat, and check for any defects such as cracks, burrs, missing materials, mixed materials, or gaps. A well-made exterior is essential to ensure the longevity of the screen.