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ZXG Tube bundle dryers are a safe and reliable product due to their method of operation. The steam-heated tube bundle slowly rotates in an immobile housing and conveys the product to be dried axially through the dryer. Shovels elevate the product along the circumference, and then the product trickles through the tube bundle back into the discharging trough. It gets dried by contact with the tubes and by convection.
Tube bundle heat exchangers are employed in a wide range of applications as dryers, conditioners or desolventisers. Both granular as well as slightly adhesive products can be dried in a tube bundle dryer. To be able to dry slightly adhesive products, the dryer is equipped with a specially developed recirculation system.
To achieve an optimal operating behaviour, each dryer is customized, such as the spaces between tubes, tube diameters, the position of shovel and shovel angle steels inside the housing etc., are selected and adjusted to an optimum. Auxiliary equipment (fan, cyclone) can also be provided to fulfil process requirements.
Spent grains, mixture of spent grains/yeast
Granulates
Condition of broken soya beans, sunflower seeds, rapeseed, and other oil seeds
Wood chips
Maize germs, maize fibres, maize gluten, maize fibre with syrup, wheat fibre with bran and syrup
| Type | Drying Area (m²) | Main Motor (kW) | Saturated Steam Pressure (MPa) | Heat Consumption (kg steam/kg H₂O) | Dimension L×W×H (mm) |
|---|---|---|---|---|---|
| ZXG-80 | 80 | 7.5 | 0.6 | 1.4 | 8200×1700×2000 |
| ZXG-100 | 100 | 7.5 | 0.6 | 1.4 | 8400×1900×2200 |
| ZXG-150 | 150 | 11 | 0.6 | 1.4 | 8600×2100×2300 |
| ZXG-210 | 210 | 11 | 0.6 | 1.4 | 8800×2200×2550 |
| ZXG-250 | 250 | 15 | 0.6 | 1.4 | 8400×2500×2600 |
| ZXG-300 | 300 | 18.5 | 0.6 | 1.4 | 9000×2500×2600 |
| ZXG-350 | 350 | 22 | 0.6 | 1.4 | 9600×2700×3100 |
| ZXG-400 | 400 | 30 | 0.6 | 1.4 | 9900×2900×3320 |
| ZXG-500 | 500 | 37 | 0.6 | 1.4 | 10800×2900×3320 |
| ZXG-600 | 600 | 55 | 0.6 | 1.4 | 11100×3100×3550 |
| ZXG-800 | 800 | 75 | 0.6 | 1.4 | 12200×3300×3900 |
| ZXG-1000 | 1000 | 90 | 0.6 | 1.4 | 12700×3600×4100 |
| ZXG-1200 | 1200 | 110 | 0.6 | 1.4 | 13000×3800×4350 |
| ZXG-1500 | 1500 | 160 | 0.6 | 1.4 | 14500×4100×4650 |
| Material | Feeding Moisture (%) | Outlet Moisture (%) | Referenced Drying Capacity (t/h per 100m²) |
|---|---|---|---|
| Maize germ | 55–58 | 8 | 2.5 |
| Maize fibre | 62 | 10 | 4.5 |
| Maize gluten | 60 | 10 | 4.7 |
| Maize fibres with syrup | 55 | 10 | 4.5 |
| Xanthic polymer | 69 | 13 | 4.0 |
| Potato fibre | 65 | 12 | 4.8 |
| Less | 65 | 12 | 4.9 |
| Feedstuff carrier | 16 | 6–8 | 4.2 |
| Rapeseed | 60 | 5–7 | 4.5 |
| Pig blood yeast | 35 | 10 | 4.4 |
| Bone meal | 40 | 10 | 4.5 |
| Feedstuff yeast | 40 | 10 | 4.5 |
