Beltomatic Configurations

Single-Stage/Multiple-Pass Dryer Model

This model is a multiple conveyor dryer design and incorporates one fan, one burner, and two to four conveyors. Normal air direction is up, but can be down if that is a requirement. The airflow contacts the product multiple-times depending on the number of conveyors. This improves efficiency while allowing the product to mix at each conveyor discharge improving moisture consistency.

Airflow velocity, resident time, and air temperature can be set to a wide range of adjustments. Normal operating temperatures are from 10°F heat rise to 240°F. Special applications can be constructed for up to 400°F. Air velocity through the bed can be set from 25 fpm to 200 fpm. Normal operating range is 100 to 150 fpm.

These models are sold as all heat or heat and cool. Heat from the cool section can be recycled to gain efficiency with certain products. The bottom conveyor on a heat and cool model is generally extended longer for the cool section. We refer to this as our B2X models. Standard widths are 2', 6', and 8' and standard lengths are in increments of 12". Custom widths and lengths are available.

Product is loaded by various spreading mechanisms at the beginning of the top conveyor and discharges at the same end with an even number of conveyors or at the opposite end with an odd number of conveyors. Product depth can be controlled on each pass due to independent conveyor speed controls.

These models are usually selected for drying of various feed products, extruded oilseeds, waste products, and for some food applications. Multiple-stage/multiple-pass units are also selected for these products when a higher degree of controllability and quality is necessary. The single-stage/multiple-pass models can be set in series to custom design a multiple-stage/multiple-pass design. Air direction can be alternated and recycled for improved drying.

Other Configurations