Shijiazhuang Xinlu Technology Co., Ltd. introduces its Paddy Air Screen Cleaner, a dedicated standalone unit designed to remove impurities from raw paddy before the hulling stage. By combining mechanical screening with aspirated airflow, this machine ensures that stones, dust, husks, and lightweight debris are separated efficiently, safeguarding downstream equipment and improving milling yield.
Working Principle
Raw paddy is fed onto a vibratory screen deck where coarse contaminants—such as stones, soil lumps, and straw fragments—are captured by appropriately sized perforations. Simultaneously, an adjustable aspirator fan generates an upward airstream through the screen surface. Low‑density materials (dust, broken husks, chaff) are lifted and drawn away through a duct to a dust collection chamber, while heavier, cleaned paddy passes off the end of the deck.
Key Components
Vibratory Screen Deck: Precision‑perforated panels, available in multiple sizes, tailored to remove particles larger than the desired paddy grain size.
Aspirator Fan & Ducting: Variable‑speed blower supplying 1–4 m³/min air volume; ductwork channels fines into a cyclonic separator.
Feed Hopper & Distribution System: Evenly spreads paddy across the screen surface to ensure uniform cleaning.
Control Panel: Simple on/off and fan‑speed adjustment, with an optional frequency drive for fine airflow control.
Frame and Housing: Heavy‑gauge steel with food‑grade contact surfaces; sealed joints minimize dust escape.
Use Cases and Benefits
Pre‑Hulling Preparation: Removes abrasive contaminants that can damage huller rollers and screens.
Dust Reduction: Integrated dust extraction preserves plant–floor air quality.
Consistent Throughput: Handles up to 25 t/h of paddy, depending on feed characteristics.
Standalone Operation: Compact footprint allows placement immediately ahead of existing milling lines.
Maintenance and Customization
Routine tasks include cleaning screen panels, inspecting aspirator filters, and lubricating motor bearings. Screen decks are mounted on quick‑release frames for rapid replacement. Shijiazhuang Xinlu Technology Co., Ltd. can supply custom screen sizes, higher‑capacity fans, and auxiliary dust collectors to match specific plant layouts and feed conditions.