Both flat die granulators and disc granulators have their own advantages in the field of organic fertilizer granulation.
From the perspective of granulation method, the flat die granulator squeezes the material on the flat die through the pressure roller, causing the material to be extruded into shape through the die hole; The disc granulator allows materials to agglomerate into granules on a rotating disc through the action of multiple forces.
In terms of particle quality, the flat die granulator produces particles with regular shapes, consistent sizes, high strength, and good stability during storage and transportation. The particles produced by the disc granulator are round, but their strength is relatively weak.
In terms of raw material adaptability, the flat die granulator has certain requirements for the humidity and viscosity of the raw materials, but can handle a variety of organic materials. The disc granulator has strict requirements for the humidity of raw materials, and excessive or insufficient viscosity is not conducive to granulation.
In terms of production efficiency, the flat die granulator has a compact structure, a relatively stable production process, and a considerable output per unit time. The continuous production capacity of the disc granulator is strong, but it may take some time to adapt when adjusting parameters such as particle size.
In terms of energy consumption, the flat die granulator mainly consumes energy in the rotation of the pressure roller and material extrusion, with relatively high energy consumption. The energy consumption of the disc granulator is mainly due to the rotation of the disc, which is relatively low.
In terms of equipment maintenance, the flat mold and pressure roller of the flat mold granulator are key components, and the cost of replacement after wear is relatively high, making maintenance relatively complex. The disc granulator has a simple structure, easy maintenance, and low cost of component replacement.
In terms of investment cost, the price of flat die granulator equipment is relatively high, and the initial investment is large. The price of the disc granulator is relatively affordable and suitable for enterprises with limited funds.
Therefore, if we focus on particle strength and shape regularity, have certain screening ability for raw materials, and have sufficient funds, a flat die granulator is more suitable. If you pursue low energy consumption, low cost, and simple maintenance, and do not have strict requirements for particle strength, a disc granulator is a good choice.