Beltomatic Configurations

Multiple-Stage/Multiple-Pass Dryer Model

This model is a multiple conveyor dryer design and incorporates multiple fans, multiple burners, and two or more conveyors. Normal air direction is up, but can be down if required. 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.

Product is loaded by various spreading mechanisms at the beginning of the top conveyor and discharged at the opposite end, or middle depending on layout. Air velocity, product depth, product resident time, and air temperature can be controlled separately in each stage 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. Separate coolers can be fitted where necessary. Standard widths are 2', 6', and 8' and standard lengths are in increments of 12". Custom widths and lengths are available.

These models are usually selected for drying of various feed and food products. They are single-stage unit's set in series to allow for multiple airflow and temperature control. Generally, these models will provide the best efficiency and product quality. Air direction can alternate and recycle for improved drying efficiency.

Other Configurations