Rotary drum granulator is one of the key equipment in the fertilizer industry, suitable for cold and hot granulation and large-scale production of high, medium and low concentration compound fertilizers. The main working method is wet granulation of pellets. Through a certain amount of water or steam, the basic materials are squeezed and agglomerated into balls during the rotation of the cylinder.
The working principle of the rotary drum granulator is mainly based on the wet granulation method of agglomerates. Through mechanical stirring force and internal aerodynamic force, the powder is mixed, granulated, spheroidized, squeezed, collided, and compacted inside the machine to achieve the purpose of granulation.
Wet granulation of pellets: The working principle of the rotary drum granulator is mainly wet granulation of pellets, which uses a certain amount of water or steam during the granulation process to make the basic fertilizer undergo sufficient chemical reactions in the cylinder.
Under certain liquid phase conditions, with the help of the rotational motion of the cylinder, the material particles are squeezed and agglomerated into balls.
Mechanical stirring force and aerodynamics: The rotary drum granulator mainly relies on mechanical stirring force and internal aerodynamics to achieve the mixing, granulation, spheroidization, extrusion, collision, density and other processes of powder inside the machine, achieving the purpose of granulation.
This mechanism causes the material to continuously undergo various mechanical effects inside the machine, thereby forming uniform particles.
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