Description
The rotary dryer is a type of industrial dryer employed to reduce
or minimize the liquid moisture content of the material. The dryer
is made up of a large, rotating cylindrical tube, usually supported
by steel beams. The dryer slopes slightly so that the discharge end
is lower than the material feed end in order to convey the material
through the dryer under gravity. Material to be dried enters the
dryer, and as the dryer rotates, the material is lifted up by a
series of internal fins lining the inner wall of the dryer. When
the material gets high enough to roll back off the fins, it falls
back down to the bottom of the dryer, passing through the hot air
as it falls. This air can either be moving toward the discharge end
from the feed end (known as co-current flow), or toward the feed
end from the discharge end (known as counter-current flow). The hot
air can be made up of a mixture of air and combustion heat energy
from a burner, in which case the dryer is called a direct heated
dryer. Alternatively, the hot air may consist of air or another
(sometimes inert) heat energy that is preheated. When the air is
preheated by some means where burner combustion heat air does not
enter the dryer, the dryer known as an indirect-heated type. Often,
indirect heated dryers are used when product contamination is a
concern. In some cases, a combination of direct-indirect heated
rotary dryers is also available to improve the overall
efficiency.
WSG-Series Rotary Dryer can be used to dry the following
material:
a. Sawdust, grazing, leaves, sugarcane biogases, and animals'
wastes and so on. And it can be used in Chemical Plant, Mine,
Metallurgy and other industries. For example, the ore, the scoria,
coal, metallic powder, phosphor fertilizer, sulfur.
b. It can dry the granule materials which have special requesting
and must dry in low temperature. For example, Vesicant; Light
Calcium Carbonate; Active Dust; Magnet Powder; Plumbago and so
on.
During the Drying Process, the best moisture content to pellet and
briquette is about ****5% and ****2%, the function of the Rotary
Dryer is to make the crushed pieces with suitable moisture.
The Rotary Dryer is made up of Direct or Indirect Biomass Stove,
Main Rotary Drum Body, Screw Conveyor, Cyclones, Air-locks, Fans
and matched Pipes which can realize to reduce the moisture from
*0%**0%.
