Bulk Blended Fertilizer (BB Fertilizer): Spherical granules offer good flowability but are prone to segregation. NPK blending lines process finished granules such as urea, ammonium phosphate, and potassium chloride. These materials typically leave the factory in spherical or near-spherical shapes, characterized by low angles of repose and excellent flowability. NPK blending machines utilize...

At first glance, disc granulators look alike—featuring a tilted disc, a rotating drive mechanism, and a water-spraying system. However, the design logic behind granulators for bio-organic fertilizer and those for ordinary organic fertilizer differs significantly. Attempting to use the same machine for both often results in the death of microbial strains, failure to form proper granules, or...

In fertilizer production, “granulation” is often considered a standard feature of production lines. However, a closer look reveals a distinction: blended fertilizer lines involve no granulation step from raw material to finished product, whereas organic fertilizer lines require powdered material to be rolled into granules. This difference is not merely a matter of equipment...

What should the tilt angle of a drum granulator be? 3.5° is a common benchmark value. In compound fertilizer, organic fertilizer, and NPK granulation production lines, the installation tilt angle of the drum granulator is usually controlled between 2° and 5°, with 3.5° considered the industry benchmark for general materials. This angle ensures that the material has sufficient residence time in...

When selecting a fertilizer production line, there is an easily overlooked engineering fact: although they process the same NPK raw materials, the blending process and the extrusion granulation process address two completely different physical challenges. NPK blending lines deal with pre-formed granules; their task is to achieve precise formulation without altering the physical form of the raw...

When selecting organic fertilizer granulation equipment, a crucial engineering fact is often overlooked: even when processing the same composted livestock manure, different process routes yield granules that differ vastly in density, strength, and the subsequent drying load. Disc granulators, double-roller press granulators, and the new “two-in-one” organic fertilizer granulators represent three...

High-tower granulation technology represents a major technological revolution in compound fertilizer production. Its core lies in “melt-to-granulation”—high-temperature molten fertilizer slurry is sprayed from the top of a tower, cooling and solidifying during its free fall to directly form rounded granules. This technology bypasses the multiple steps of traditional granulation...

When selecting organic fertilizer processing equipment, a crucial engineering fact is often overlooked: even when processing the same composted livestock manure, the choice of granulation method can lead to vastly different outcomes regarding granule density, strength, and the subsequent drying load. The “new type two-in-one” organic fertilizer granulator, the double-roller press...

In the field of organic fertilizer granulation, a repeatedly validated rule holds true: the commercial value of a granule is largely determined the moment it leaves the granulator. However, the factors determining this value extend far beyond a single piece of equipment. The disc granulator handles the initial shaping—transforming powder into spheres—while the new “two-in-one”...

Mostly due to improper operation or inadequate maintenance. Overheating and tripping of the fertilizer compost turner motor is one of the most common malfunctions in organic fertilizer fermentation workshops. Many operators’ first reaction is “the motor is broken,” but after disassembling and inspecting the machine, they often find that the motor itself is not the problem; the root cause lies in...