Common Faults of Drum Screen

The drum screen is a key device for efficient screening. However, common faults may occur during long-term operation, affecting screening efficiency and grain quality. Here are some typical faults of drum screens.

Common Fault Types of Drum Screen

Screen Mesh Blockage

When screen mesh holes are clogged by impurities or fine particles from the grain, screening efficiency decreases, and the equipment may fail to work properly. This usually happens due to insufficient pre-treatment of grain, causing too many impurities to enter the screen mesh, or due to long-term lack of cleaning and maintenance of the screen mesh.

Abnormal Drum Vibration

Abnormal vibration of the drum is also a common fault. Excessive or uneven vibration during operation not only affects screening results but may also damage the equipment. Possible causes include loose drum installation, loose anchor bolts, poor drum balance, or abnormal drive components.

Motor Overheating

Motor overheating can reduce equipment efficiency and may damage the motor, disrupting normal operation. This can be caused by excessive motor load, cooling system failure, or insufficient lubrication of motor bearings.

Screen Mesh Damage

Screen mesh damage is another common fault. Damaged mesh leads to poor screening, failing to effectively separate fine particles and impurities, which affects grain quality. This can be due to poor mesh material, long-term wear, or overloading of the equipment.

Drive Component Wear

Drive components such as belts, chains, and bearings wear out over time, causing unstable equipment operation and issues like slipping. This not only affects screening efficiency but may also damage the equipment.

Inefficient Discharge

Blockage or uneven discharge at the outlet during operation may be caused by improper screen mesh hole size, poor outlet design, or high grain moisture. Inefficient discharge leads to grain accumulation and disrupts normal equipment operation.