Why sticky or viscous materials are not clogged inside of the machine （KENKI DRYER）? sludge dryer, slurry dryer

Why sticky or viscous materials are not clogged inside of the machine （KENKI DRYER）?

It can dry any sticky or viscous materials without being clogged in the machine by using unique patented self-cleaning screws.
Even materials stuck on the blades of one screw, blades of the other screw peel the materials off as they rotate. No sticky, viscous or adhesive materials can stick on the blades. Hence, any kind of material can be dried without being clogged inside the dryer.

Please see this page for further details.
https://kenkidryer.com/product/self-cleaning/