Solutions for Continuous Oil Leakage During Vibrating Screen Operation

Vibrating screens are commonly used sand-making equipment in mining operations. As screening devices capable of grading, dewatering, desliming, de-mediating, and sorting, they utilize the vibration of the screen body to loosen, stratify, and pass materials through the screen, achieving material separation. With a reliable and durable structure, they are categorized into linear vibrating screens and circular vibrating screens based on material movement trajectories. Prolonged operation inevitably leads to malfunctions that impair screening efficiency. For instance, why does oil continuously leak from vibrating screens during operation, and how can this be resolved?

1. Shift in the Vibration Source's Rotational Centerline. A displacement of the vibration source's rotational centerline compromises the sealing integrity of the vibrator. Under centrifugal force, this leads to oil flinging.　　

2. Internal and external pressure differential. Heat generated during operation increases internal pressure. If vent holes become blocked, excessive pressure buildup can damage the screen, compromising its airtightness and causing oil flinging.

3. Loosening of the sealing gland. The bearings of the vibrating screen are mounted within the bearing housing, with the sealing gland secured by a seal ring. If the height difference between the end face of the bearing housing and the bearing end is minimal, the seal ring on the sealing gland loses its fixing function. This causes misalignment between the bearing and the sealing gland, leading to seal failure and oil flinging.

Solutions:

(1) Periodically inspect the vibrator for signs of slippage.

(2) Opt for high-viscosity lubricants to minimize oil flinging during operation.

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