2013年5月8日星期三

Disk Grain Making Machine/Disk Granulator

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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