What are the granulators of organic fertilizer granulation process?
What are the granulators of organic fertilizer granulation process?
1. Agitator granulator
Stirring teeth granulator is through high-speed mechanical stirring to produce aerodynamic force, so that the fine materials can be mixed into granules in the granulator. This method also does not need drying, and the material has high balling rate, and the granules look more beautiful. However, during granulation, the content of nitrogen, phosphorus and potassium in the material should not exceed 15%, otherwise the heat will affect the granulating fruit.
2. Double roll extrusion fertilizer pellet machine
The basic working mechanism of the double roll extrusion fertilizer pellet machine is that the material is added from the feed hopper, extruded by the twin roll, and then transported to the crushing screen working room through the auxiliary chain to screen and separate the finished particles, and then the remaining materials are returned to mix with the new materials, and then granulated. The roller extrusion granulator adopts the drying process, which can be completed at room temperature without drying and cooling. It is suitable for compound fertilizer and mixed fertilizer.
3. Drum granulator
The rotary drum granulator sprays water vapor with constant pressure on the material to make the material obtain water and be applied with constant pressure at the same time, so as to form small particles and form particles with constant size in the process of rotation. The wet granulation environment enables the conversion granulator to produce the compound with high content of nitrogen, phosphorus and potassium, but low cost.
4. Disc granulator
Disc granulator is mainly through adding water in the raw meal powder to stir, into the disc, with the rotation of the disc, the material in the disc gradually forms a ball by rolling, and after reaching the predetermined diameter, it is discharged out of the disc. The disc granulator has high granulation rate, corrosion resistance, good hardness and long service life.
5. Flat die granulator
The granule made by the organic fertilizer granulator has high density, smooth surface, easy storage, and good preservation of nutrients. However, due to its high density, it is not easy to absorb in the process of actual use.
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