Solid compound fertilizer granules are more effective than other fertilizers in use and soil, and are widely welcomed in the market. Fertilizer granulation is a basic treatment method in fertilizer production. Fertilizer granulator mixes different fertilizers into granules, which plays an important role in NPK fertilizer production line.
Basic fertilizers such as ammonium bicarbonate, urea, ammonium chloride, ammonium nitrate, ammonium sulfate, ordinary superphosphate, calcium magnesium phosphate, ingot phosphate, heavy superphosphate, potassium chloride, potassium sulfate, phosphate nitrate, dicalcium phosphate, potassium nitrate and so on are proportionally compounded to make the compound fertilizer we need, which is granulated by fertilizer granulator. Granulation is the granulation of fertilizer containing water. In NPK fertilizer production line equipment, the commonly used fertilizer granulator includes roller press granulator, rotary drum granulator and disc granulator.
The working principle of drum granulator and disc granulator is similar. When urea, calcium superphosphate, ammonium sulfate, ammonium phosphate, ammonium nitrate, potassium fertilizer and other fertilizers are mixed, they are aggregated into compound fertilizer granules through granulation operation. Rotary drum granulator and disc granulator are suitable for granulation of various ingredients, and the obtained granules are of good quality and high granulation rate of materials.
The main body of the rotary drum granulator is a horizontal drum. The drum is driven by motor, reducer and gear, which is supported by wheel and rollover. The drum granulator has strong production capacity, long material residence time and good granulation effect.
The main body of the disc granulator is a slightly inclined disc, which continuously rolls to complete granulation. In the production of disc granulator, the production situation can be seen directly, which is convenient to observe and adjust in time, and the granulation rate of compound fertilizer is high.
Fertilizer Granulator Granulates by Extrusion
The roller press granulator makes the material into granules by extrusion method. The water content is not higher than 15%, and the materials with good fertilizer effect are mixed after mixing, and the material is strongly extruded by the roller press granulator, so that the molecular force between fertilizers acts and is extruded, and then the sheeted material is crushed into granular compound fertilizer.