Steel & Stainless Finned Tube Heat Exchanger for Grain Drying System

Industrial finned tube air heater is the core heating component matched with continuous grain drying tower and batch grain drying warehouse, widely used for corn, wheat, rice, soybean, sorghum and other cereal grain dehumidification and drying processing. Using steam, hot water or thermal oil as heat medium, this finned tube radiator heats circulating air to form stable hot air, evenly takes away grain surface and internal moisture, prevents grain mildew, budding and deterioration during storage. Designed with anti-blocking, dust-resistant and anti-corrosion fin structure, it adapts high dust environment produced by husk, bran and crop debris in grain drying workshop, stable for long-time continuous agricultural drying operation.

Working Principle

Hot medium flows inside finned base tubes and releases heat, heat transfers to outer fin surface quickly. Circulation fan pushes cold air cross flow through fin bundle and absorbs heat to form constant-temperature drying hot air. Hot air penetrates layered grain pile inside drying tower, evaporates grain internal moisture; humid damp air is exhausted out of drying system, and new heated dry air keeps circulating to finish continuous grain dehydration and drying.

Main Product Advantages

1. Large Fin Pitch Anti-block Design for Grain Dust

Wide fin gap effectively avoids blocking by bran, husk and fine grain powder, keeps stable air flow and heat exchange efficiency, greatly reduces frequent shutdown cleaning frequency.

2. Uniform Mild Hot Air to Guarantee Grain Quality

Even heating without local overheating, prevent grain crack, protein denaturation and germ damage, keep grain germination rate and commercial grade, reduce drying loss rate.

3. High Thermal Efficiency & Energy Saving

Finned structure expands heat dissipation area remarkably, fast temperature rise, shorten grain drying cycle, lower fuel consumption of drying plant and cut production cost.

4. Multiple Material Options for Different Working Conditions

Carbon steel type cost-effective for common grain depot; stainless steel version resists high humidity and grain volatile organic acid, fit rice and high-moisture cereal drying projects in south humid area.

5. Strong Compatibility with Various Heat Sources

Perfectly match biomass boiler, coal-fired steam boiler, heat pump unit and industrial waste heat recovery system, adapt diversified local energy supply in agricultural areas.

6. Compact Modular Layout

Flexible combined modules according to drying tower tonnage (5T~500T per day), save workshop occupied space, easy for old grain drying line energy-saving transformation.

Application Range

Rice, corn, wheat large-scale drying tower supporting heating equipment

Soybean, sorghum, rapeseed batch drying warehouse heating system

Farm grain depot small mobile grain dryer matched air heater

Grain processing factory, feed factory raw grain dehumidification drying production line

Daily Maintenance Specification

Use compressed air regular blow cleaning for fin surface bran and dust every 7~15 days to prevent heat efficiency drop.

Check medium pipeline flange and welding joints regularly to avoid steam or hot water leakage.

Adjust hot medium flow to control drying air temperature according to grain moisture content and ambient humidity.

Drain residual liquid inside tubes during seasonal shutdown to slow inner pipe corrosion.