Grain dryer FRPX

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Overview
The FRPX Series is a continuous-cycle column grain dryer engineered for intensive farm and collection-center operations. It combines a dual-burner configuration with an integrated in-column tempering zone to manage differentiated temperatures across multiple drying stages, reduce thermal stress and improve final grain quality.

Key Advantages

• Dual burner: Provides increased thermal power and flexible heating profiles for high-moisture loads.
• Differentiated temperature zones: Controlled temperatures along the column enable gradual, uniform drying and lower thermal stress on grain.
• In-column tempering: Internal tempering zone allows resting between drying and cooling phases to equalize moisture and temperature, improving end-product quality.

Core Components (product visualizer)

• Main fans: Top-mounted fans generate dryer airflow; fitted with silencer and damper to limit noise and dust emissions.
• Recovery fans: Lower-section fans recover a portion of hot, low-humidity air to raise energy efficiency and reduce fuel use.
• Extraction device: Oscillating flaps ensure precise, homogeneous and constant grain discharge.
• Air ducts: Profiled ducts promote grain flow and efficient heat exchange between hot air and grain.
• Stairs and walkways: External and internal access for safe inspections and routine maintenance.
• Heat generator: In-line air burner delivering accurate, uniform temperature control; available for methane, LPG and diesel.
• Base frame: Supports extraction device and hopper; structural design ensures reliable extraction and resistance to seismic, wind and accidental loads.

Process Flow and Functional Areas

• Air intake: Process air is drawn from the environment and heated.
• Upper drying zone: Hot air from the first burner (lower temperature) passes through the central column section.
• Central drying zone: Recovered hot air, heated by the second burner to a higher temperature, passes through the upper column section.
• Energy recovery: Hot air from the final drying phase is recovered and reintroduced to reduce fuel consumption.
• Product cooling: Dried grain is cooled with ambient air in the lower section before extraction.
• Exhaust air expulsion: Moisture‑laden exhaust air is expelled from the dryer.

Complementary Technologies & Options

• VAP System: STRAHL technology for additional dust-emission reduction.
• Moisture Control System: Continuous product-moisture monitoring to tighten process control.
• Extraction Speed Regulator: Optional inverter to adjust extraction speed.
• Supplementary Temperature Monitoring: Additional probes for finer temperature control across sections.

Control Systems
The FRPX Series supports an intuitive real-time control interface for process monitoring, alert detection and drying optimization.

Recommended applications
Designed for agricultural operations and grain collection centers requiring continuous, fast and uniform drying with controlled thermal stress.

Technical specifications

• Brand: Strahl
• Model: FRPX Series
• Product type: Continuous-cycle column grain dryer with integrated tempering zone
• Heating: Dual burner configuration for increased thermal power and flexibility
• Fuel options: Methane, LPG, diesel
• Zone management: Differentiated temperature control across multiple drying zones
• Tempering: Integrated in-column tempering zone
• Airflow components: Main fans (top), recovery fans (lower section)
• Material handling: Extraction device with oscillating flaps; base frame with hopper
• Air distribution: Optimized air ducts for heat exchange and grain flow
• Operator access: External and internal stairs and walkways
• Energy efficiency: Hot-air recovery from final drying phase
• Options: VAP dust-reduction, Moisture Control, Extraction Speed Regulator, Supplementary Temperature Monitoring
• Control: Real-time process management system