Rotary vibrating screen is a high-precision, fine screening device characterized by low noise, high efficiency, and fast screen changes. Its fully enclosed structure is suitable for screening and filtering granular, powdery, and mucus materials, providing reliable solutions for material separation, grading, and impurity removal in various industries. The tension of the vibrating screen directly affects the screening efficiency and equipment life during operation. If the screen is too loose, the following problems may occur:

1. Reduced Screening Efficiency: Material accumulation and loose screen meshes lead to uneven material distribution, resulting in accumulation in certain areas and impacting screening efficiency. A loose screen mesh fails to effectively separate material, causing coarse particles to mix with fine material (coarse accumulation) or fine powder to remain (fine powder leakage). Reduced Screening Precision: A loose screen mesh can cause mesh deformation, impacting accurate material grading.

2. Reduced Screen Lifespan: Increased friction: Loose screen meshes repeatedly rub against the support frame during vibration, accelerating wear. Uneven localized force distribution results in greater tension in certain areas, making the screen prone to tearing or breakage. This increases the frequency of screen replacement, increasing maintenance costs and impacting production efficiency.

3. Abnormal Equipment Operation: Abnormal noise: The screen mesh slaps against the support frame, creating a "slapping" sound. Unbalanced vibration: A loose screen mesh affects the overall stability of the equipment's vibration operation, potentially causing motor overload. Screened material splashes: Violent screen vibrations can cause dust or particles to fly.

4. Impact on product quality: uneven distribution of material particle size leads to inaccurate material classification; cross contamination, if the screen is damaged during production, materials of different specifications may be mixed, resulting in unqualified batches of products.

How to fix a loose screen and properly tighten the screen:

1. Choose the appropriate screen tensioning method: Mechanical tensioning using bolts, pressure rings, or pneumatic tensioning devices (suitable for metal screens); Adhesive tensioning using high-strength polyurethane adhesive (suitable for fine screens); Ultrasonic welding (suitable for special material screens).

2. Screen tensioning standards: Ensure uniform tension, using a tensiometer to check the tension across the entire screen surface (generally recommended tension: 30-50N/cm); Flatness and wrinkle-free. After tightening, the screen should be flat and free of wavy deformation. Check the screen regularly after tightening, checking the tightness after 10-12 hours of operation.

3. Maintenance recommendations: Replace the screen regularly (based on the degree of material wear); use anti-loosening devices (such as elastic rubber rings, lock nuts, etc.); and avoid overloading (control the feed rate to prevent the screen from being compressed and deformed).

The tension of a ratary vibrating screen is a key factor affecting screening performance. Too loose a screen can lead to decreased screening efficiency, accelerated equipment wear, and unstable product quality. Proper tensioning and regular maintenance can improve screening accuracy and screen life. We recommend selecting the appropriate tensioning method based on the characteristics of the material being screened and establishing a regular inspection system to ensure stable production. These are the problems and solutions for screens that are caused by too loose a tensioning mechanism. If you have any further questions, please contact us at Mirant Xinxiang Machinery Equipment Co., Ltd.