Description
This equipment is designed for drying or cooling of paste,
particle, powder and slurry state of material, perform the process
of drying, cooling, heating, sterilizing, reacting and combustion
under low temperature. The special stirring and heating
transferring blade, makes high heat transferring efficiency, and
provide self-cleaning function. The special chock shaped stirring
and heat transferring blade has high heating efficiency and
self-cleaning function of the heating transferring surface.
Hollow chock shaped blades are concentrated on the hollow shaft.
Heat media flow through the blade from the hollow shaft. The heat
transferring area in the effective volume is very high. The
temperature range of heating media is **0 to **0. It might be
steam, or liquid state, such as steam, thermal oil etc. Indirect
heating, there\'s no heat carried out by air. All heat is utilized
for to drying the material except the lost of heat insulation
layers. The surface of chock shaped blade has self-cleaning
function. The relative movements of the product particles and the
chocked shaped surface might clean the material attached to the
chock shaped surface, so to keep the cleanliness of heat
transferring surface during working. The shell of hollow blade
dryer is Ω Shape. 2 or 4 pieces of hollow stirring shaft are
usually equipped in the shell. To avoid any leakage of material,
there\'re sealed terminal cover and top cover with the shell. The
heat transferring media flow through the rotation connector,
jacket\'s shell and hollow stirring shaft. To ensure best
transferring effect, the hollow stirring shaft adopts different
interior structure in accordance with different heating media.
Features:
1. The heat consumption of blade is low: No heat carried out by the
air because of indirect heating; There\'s no heat insulation layer
with the exterior wall of the dryer. It consumes 1.2 kg of steam to
evaporate 1kg of water for to drying slurry state of material.
2. The cost of the blade dryer is low: The unit effective volume
has very large heat transferring surface, so the processing time is
shorted, the size of the equipment becomes small. The building area
and place are sharply decreased.
3. The range of material to be processed is wide: Heat sensitive
material and the materials to be processed under high temperature
might be processed with different heating media. The normal media
are: Steam, thermal oil, hot water and chill water. It might be
continuous or batch operation, widely used in many areas.
4. The pollution is less: Without any carrying air, very few powder
is carried out. The solvent evaporated is very few, it easy to be
processed. For the material that might cause pollution or the
solvent to be recovered, it might adopt sealed circulation.
5. The operation cost is low: 1hour/day. Operator is enough for
normal operation. Low stirring speed and reasonable structure, the
worn amount is few, and the maintenance fee is low.
6. Steady operation: The material particles fully contact heat
transferring surface, because of the special compressing and
swell-stirring effect of the chock shaped blade. The difference of
the temperature, humidity and mixing effect are very small in the
different axial area, so to ensure the stability of process.
