Grain dryer FRP series

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Overview
The FRP Series is a continuous-flow grain dryer with heat recovery and a dual-burner configuration. Two independent in-line burners enable differentiated temperature control along the drying column for staged, precise treatment of high‑moisture grain, reducing thermal stress and improving energy efficiency.

Why choose the FRP Series

• Dual Burner — Two separate burners increase available thermal power and allow flexible temperature management under demanding operating conditions.
• Differentiated Temperature Zones — Managed temperature zones along the column provide gradual and uniform drying to minimize thermal shock to the grain.
• Intensive Drying — Designed for high‑moisture grain processing with reduced cycle times and consistent, homogeneous results.

Main components

• Loading hopper — Optimized internal geometry for uniform grain flow into the drying column.
• Main fans — Installed in suction mode opposite the burners to ensure uniform airflow; fitted with silencer and shutter to limit noise and dust emissions.
• Recovery fans — Located at the bottom to recover part of the hot air and reintroduce it into the cycle for improved energy efficiency.
• Air ducts — Profiled to support grain flow and maximize heat exchange between hot air and grain.
• Extraction device — Oscillating shutters for even, controlled product discharge.
• Catwalks and access — Internal and external walkways for safe inspection and maintenance.
• Heat generator — Two in-line burners available for natural gas and LPG with precise modulation; diesel versions available.
• Basement / structural base — Anchored foundation certified for extreme wind, snow and seismic loads.

Process and flow

• Air intake — Ambient air is drawn in and heated to support the drying process.
• Central drying zone — Hot air from the first burner, set at a lower temperature, crosses the central section for balanced drying.
• Upper drying zone — Recovered hot air raised by the second burner flows through the upper section for final moisture reduction.
• Exhaust — Moisture‑saturated air is expelled from the dryer.
• Product cooling — Dried grain is cooled with ambient air in the lower area before extraction.
• Energy recovery — Usable hot air from the bottom is recovered and reintroduced to lower fuel consumption.

Complementary technologies

• VAP system — Proprietary solution to further reduce dust emissions.
• Moisture control system — Product moisture monitoring for tighter process control.
• Extraction speed regulator — Option with inverter to adjust product discharge speed.
• Supplementary temperature monitoring — Additional probes for more accurate temperature mapping of dryer sections.

Control systems
Strahl control systems provide real‑time process data, alarms and cycle optimization tools to maximize yield, maintain grain quality and improve operational efficiency.

Technical characteristics / specifications

• Brand: Strahl
• Series / Model: FRP Series
• Product type: Continuous‑flow grain dryer with heat recovery
• Burners: Dual in‑line burners; fuel options include natural gas and LPG; diesel version available
• Temperature control: Differentiated zones along the drying column for staged treatment
• Energy efficiency: Integrated heat recovery with recovery fans
• Air handling: Main fans in suction mode; silencers and shutters fitted
• Material handling: Optimized loading hopper and oscillating‑shutter extraction device
• Maintenance & access: Internal and external catwalks
• Structure: Anchored foundation certified for extreme wind, snow and seismic loads
• Options: VAP dust‑reduction; moisture control; extraction speed regulator (inverter); additional temperature probes
• Control: Strahl real‑time control systems for monitoring and optimization