Double Body Paddy Separator

Double Body Paddy Separator - Optimizing Paddy and Brown Rice Separation

The Role of Paddy Separation in Milling Efficiency
The Double Body Paddy Separator is an essential machine in the rice milling flow, specifically designed to separate unhulled paddy kernels from brown rice after the husking stage. Efficient separation is crucial; residual paddy entering the whitening process leads to broken white rice, while brown rice recirculated through the husker causes unnecessary grain damage and energy loss. Shijiazhuang Xinlu Technology Co., Ltd. engineers these separators for high precision and operational stability.

Working Principle & Design: Unlike single-body separators, the double-body design features two independent separation units stacked vertically or arranged in parallel within a single frame. Each unit consists of an oscillating deck covered with indented rubber sheets. The separation exploits the physical differences between paddy (longer, lighter, more buoyant) and brown rice (shorter, denser). As the material travels over the deck, the oscillating motion causes paddy grains to "float" upwards on the indented surface, while brown rice settles downwards. Adjustable deck angles, oscillation frequency, and amplitude allow operators to fine-tune the separation for different grain varieties and husking yields.

Advantages of Double Body Configuration: The primary benefit is significantly increased capacity without doubling the machine's footprint. It allows for flexible operation – both bodies can process the same feed material for maximum throughput, or they can be used sequentially for higher separation precision on difficult mixtures. Redundancy is another advantage; if maintenance is required on one body, the other can often continue operating at reduced capacity. The design also promotes better material distribution and flow control compared to single large decks.

Critical Parameters for Performance: Deck Oscillation: Precise control over stroke length and frequency is vital for optimal stratification and movement of grains. Deck Angle: Adjusting the tilt affects the residence time and separation intensity. Feed Rate: Consistent and controlled feeding is essential to prevent overloading and ensure each grain has sufficient contact with the deck surface. Rubber Mat Condition: The depth and pattern of the indents on the rubber mats wear over time and must be monitored and replaced to maintain separation efficiency.

Impact on Downstream Processes: Effective paddy separation directly protects subsequent milling stages. By minimizing paddy entering the whitener, it significantly reduces the generation of broken kernels during whitening and polishing. It also prevents brown rice from being unnecessarily re-husked, preserving kernel integrity and reducing mechanical load and energy consumption on the husker. This results in higher overall milled rice yield (head rice recovery) and improved product consistency.

Shijiazhuang Xinlu Technology Co., Ltd.'s Double Body Paddy Separators are built with robust frames to withstand constant vibration, utilize high-wear-resistant rubber materials, and incorporate user-friendly adjustment mechanisms, contributing directly to a mill's profitability through enhanced yield and reduced waste.