Double roller extrusion granulators and disc granulator are both common fertilizer granulation equipment. They have their own characteristics and applicable scenarios in the granulation process. Next, I will introduce the extrusion granulator and disc granulator to you in detail.
Double Roller Extrusion Granulator
Working process: The double roller extrusion granulator presses the raw materials into granules by mechanical extrusion, which is usually suitable for granulating harder raw materials, such as fertilizers, organic fertilizers, etc.
Advantages:
Suitable for granulating raw materials with higher hardness.
The molding properties of the raw materials can be fully utilized during the granulation process to generate uniform and dense granules.
Large output, suitable for large-scale production.
Disadvantages:
High requirements for raw material humidity.
Requirements for raw material particle size.
Disc Granulator
Working process: The disc granulator granulates the raw materials by rotating the disc, which is suitable for granulating soft raw materials, such as organic fertilizer, biological fertilizer, etc.
Advantages:
Suitable for granulating soft and sticky raw materials.
A certain amount of water can be added during the granulation process, which is conducive to the formation of particles.
Disadvantages:
The energy consumption is large. Due to the uniqueness of wet granulation, the finished fertilizer particles need to be dried and cooled to enhance the hardness of the fertilizer particles.
The granulated particles are not uniform enough, and a screening machine is required to classify the fertilizer particles.
How to choose a suitable fertilizer granulator
Raw material characteristics: According to the hardness and viscosity of the raw materials to be granulated, choose a double roller extrusion granulator or a disc granulator.
Production requirements: If mass production is required and the raw materials are suitable for extrusion granulation, a double roller extrusion granulator can be selected; if it is a small-scale production or the raw materials are soft organic matter, a disc granulator can be selected.
Budget considerations: It is necessary to consider the investment cost and subsequent maintenance costs of the equipment, and select equipment with a higher cost performance while meeting the needs.
In summary, the double roller extrusion granulator and disc granulator each have their own advantages and disadvantages and should be evaluated according to specific circumstances when selecting to meet production needs and improve production efficiency.
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