How to Choose Between NPK Steam Granulation and Extrusion Granulation
What are Steam Granulation and Extrusion Granulation? Steam granulation is a wet process where saturated steam is introduced into a drum granulator to heat and humidify the material particles, causing them to agglomerate into spherical particles during rolling. Extrusion granulation, on the other hand, is a dry process that uses rollers or flat dies to directly compress powdered materials into irregular granules under high pressure, without adding water or steam. The two processes differ significantly in particle morphology, energy consumption, investment, and raw material adaptability, and each has its own focus in applicable scenarios.
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