Paddy Parboiling System and Dryer

Paddy Parboiling System and Dryer

A paddy parboiling system and dryer is an integrated setup used in rice processing to parboil and dry paddy efficiently before milling. Parboiling involves soaking, steaming, and drying the paddy, which improves its milling yield, nutritional value, and storage stability. This system is essential in the production of high-quality parboiled rice.

Features of a Paddy Parboiling System and Dryer

Paddy Pre-Cleaner

  • Removes impurities like dust, stones, and straw to ensure clean paddy for parboiling.

Soaking Tanks

  • Soaks paddy in water at controlled temperatures to allow water absorption
  • Ensures even hydration for uniform steaming

Steaming System

  • Uses steam to partially cook the paddy.
  • Gelatinizes starch within the grains, hardening the kernel and locking in nutrients
  • Prevents grain breakage during milling.

Paddy Dryer

Removes excess moisture from steamed paddy, reducing it to safe storage levels (12–14% moisture content).

Fluidized Bed Dryers

Ensures uniform drying with high-speed airflow

Recirculating Dryers

Efficient for medium to large operations.

Key Components

  • Air Heating System: Uses biomass furnace, gas, or Boilers to generate hot air

  • Airflow System: Ensures even distribution of heat across the grain for uniform drying

  • Control Systems: Automated temperature and moisture control to prevent grain cracking or discoloration

Parboiling Tanks

  • Combine soaking and steaming operations in a single unit for efficiency

Control Systems

  • Automated systems to regulate soaking time, steaming pressure, and drying temperature for consistent results

Advantages of Paddy Parboiling System and Dryer

Reduces grain breakage during milling, leading to higher head rice yield.

Nutrients from the husk and bran layers migrate into the grain during parboiling.

Reduces moisture content and inhibits fungal growth and pest infestation

Ensures consistent cooking and drying for better market acceptance

Modern systems incorporate heat recovery and optimized processes to reduce fuel consumption

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