Drum Type Grain Washer (Rotary Drum Washer) is an industrial cleaning machine used for wheat, rice, pulses, and seeds. It is specifically designed to remove surface dirt, mud, fine dust, and light impurities through a combination of mechanical tumbling and water spray.

1. Technical Specifications (500 to 2,000 kg/hr)

2. How the Drum Washer Works

1. Feeding: Raw grains enter the inclined rotating drum via a hopper or conveyor.
2. Tumbling Action: As the drum rotates, the grains are lifted and tumbled. Internal baffles or a helix screw move the grains forward.
3. High-Pressure Spray: Water is sprayed from a central pipe inside the drum. This "scrubbing" action loosens mud and stones attached to the grain.
4. Separation: Dirt and wastewater pass through the drum's perforations  and are collected in a bottom tank, while the clean grains travel to the discharge end.
5. De-watering (Optional): Many units include a final "spin" section or a centrifugal blower at the outlet to remove excess surface water before the grain moves to a roaster or dryer.

3. Key Benefits for Your Setup

• Uniform Cleaning: Unlike batch washing, every grain gets equal exposure to water and friction.
• Low Water Waste: Most industrial drum washers include a Filter & Recirculation Tank, allowing you to reuse water for multiple cycles.
• Adjustability: You can change the drum's angle and rotation speed. For example, Rice needs a gentle wash, while Dirty Wheat might need a longer retention time and higher speed.