A small compound fertilizer plant often starts with a compact dry granulation line. The 3 t/h extrusion granulation process moves raw powder from batching through extrusion and screening to final packing. You can review the following stages to see how the machines connect and where the extrusion step creates the granule shape.

3 t/h extrusion granulation process

Which machines make up an extrusion granulation production line?

An extrusion granulation production line includes a loader type feeder, a disc feeder, a double roller extrusion granulator, a rotary screening machine, and an automatic packing scale. Belt conveyors and storage bins connect these stations. The double roller granulator sits at the center and compacts the powder into uniform granules. You can add a batching machine or a mixer before the extruder when the formula contains several raw materials.

How does the dry extrusion granulation process work?

In the dry extrusion granulation process, the rollers press the powder between two rotating surfaces without water or binder. The finished granules keep a low moisture level and need no dryer or cooler. This route therefore shortens the line and lowers the equipment count. The granule strength comes from the compaction pressure, and the roller socket shape controls the final size. You can adjust these settings to keep the output steady at the target hourly rate.

Which raw materials suit a 3 t/h extrusion granulation line?

The line handles urea, ammonium sulfate, ammonium chloride, and blended NPK powders with low moisture. It can also process dried organic material and some mineral powders. When the feed is dry and free-flowing, the extrusion route keeps the nutrients stable and reduces return material. This flexibility makes the process useful in a fertilizer manufacturing system that serves compound, organic, and mineral formulas. The compact layout suits a plant that produces less than 20,000 tons per year.

What supporting fertilizer equipment follows the extruder?

A screening machine separates oversized granules, and a packing scale fills the finished bags. A double roller extruder granulator forms the core of this dry route, while a crusher prepares the powder feed. The working principle follows the granulation route described for fertilizer processing. A fertilizer machinery manufacturer can size each station for the plant floor.

When a production team builds a small dry granulation line, the extrusion pressure and the screening step determine the final granule quality. For an equipment reference, Yushunxin supplies compact extrusion configurations for different capacities. If you have interests, you can learn more about https://www.extruder-granulator.com/3-t-h-extrusion-granulation-process