Performance features
The disk granulator produced
by our company adopts the overall arc structure of the disk angle and
granulation rate can be up to 93%. Granulating disc has three discharge ports,
which makes it easy to conduct the intermittent production operations, greatly
reducing the labor intensity and improving the labor efficiency. The flexible
transmission of the reducer and motor helps the smooth start, the mitigation of
the impact and the increase of the equipment service life. At the bottom of the
granulation disk, it is strengthened by multiple radiation steel plates to make
it durable without deformation. There is no need of anchor bolts to fix it due
to the thicker, heavier, sturdy base design. The main gear adopts the
high-frequency quenching, prolonging its service life. In the granulation disk,
it is lined with the fiber reinforced plastics, which is anti-corrosion and
durable. The surface is featured with the advantages of uniform granulation,
high granulation rate, smooth operation and long service life and other
advantages.
Working principle
The raw material powder is wetted evenly by
the atomized water evenly in the biaxial mixer, forming the ball nuclear with
uniform particle size, which will be sent into the disk for the next procedure.
The moisture of the materials should be controlled at 12 ~ 14%. The water is
mostly added in the biaxial mixer and only a small amount of water should be
added in the disk. As for the dry powder granulation, an appropriate amount of
water should be sprayed into the granulation disk. The raw material ball nuclear
will do the parabolic motion under the role of centrifugal force, friction and
gravity after entering the granulation disk. Due to the adhesion and plasticity
of the material, the ball nuclear bonds with each other and gradually becomes
large in the course of motion. In the continuous rolling process, the water in
the raw material ball nuclear will be constantly discharged out of the surface.
Due to the adhesion of the material and the natural evaporation of the liquid
film on the surface, the pellet has certain strength so that they will be
discharged out from the disk grain making
machine with the rotation of the inclined disk.
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