1. The heat consumption of blade is low:
Due to adopting indirect heating method, there will not be large
amount of heat energy being taken away, besides there is
additionally heat-insulation outside of heating drum body,
therefore for paste materials, it only consume 1.2 kgs of steam to
evaporate 1.0 kg of moisture inside the raw material.
2. The cost of the blade dryer is low:
For unit effective volume, there is a vast heat-convection area,
thus it will shortens the processing duration, and also facilitates
to reduce equipment’s sizes, in the end the construction area and
space is greatly decreased.
3. The range of material to be processed is wide:
It can apply different heating medium, thus it can not only process
heat-sensitive material but also material to be processed under
high temperature. The commonly applicable heat medium is as: steam,
thermal oil, hot water, cooling water and etc. It can not only run
continuously but also intermittently in many process fields.
4. The pollution is less:
There is much less dust material being carried or emitted out to
environment. There is also much less material solvent being
evaporated, which is easy to be processed. For processing
conditions such as there is contaminated material or there is
solvent to be recovered, the close-circuit circulation mechanism
can be adopted.
5. The operation cost is low:
By adopting low-speed stirring mechanism and reasonable structure
and less wear allowance, the maintenance cost is also very low.
6. Steady operation:
Due to the special compression-expansion stirring function of
V-shaped blade, it makes it possible to get material granule
contact with heat-transferring surfaces fully, thus within the
axial inter-zones, the material temperature, humidity and mixing
gradient is very small, which can guarantee process stability.
