*3.3.1.2 Atmospheric single-drum dryers*

The paste or slurry is nourished throughout a header that has various nozzles or across a pendulum nozzle onto the tweak of a steam-heated drum and highly cooler applicator cylinder counter-rotating toward each other, then making a boiling pool at the tweak (**Figure 7**) [38–40, 46]. Starch slurries turn into gelatine in boiling pool, making pastes extra sticky. The drum counter rotation and applicator cylinder diffuse the paste/slurry into a soft slab on the warm drum, which subsequently dries

**Figure 7.** *Single-drum dryer with applicator roller feed.*

*Drying Technology Evolution and Global Concerns Related to Food Security… DOI: http://dx.doi.org/10.5772/intechopen.109196*

**Figure 8.** *Single-drum dryer with dip roller feed.*

conductively. Otherwise, the slurry could be nourished by dip coating a dip or applicator cylinder in a feed plate at the dryer bottommost, then cylinder coated on the drum as illustrated in **Figure 8**. Also, the slurry could be nourished by dip coating the drum directly in the feed tray (see **Figure 9**) or scattered or marked from a feed plate as illustrated in **Figure 10**.
