An NPK compound fertilizer production line is a specialized system for producing nitrogen, phosphorus, and potassium (NPK) compound fertilizers. Its core focus is on mixing nitrogen, phosphorus, and potassium in appropriate proportions and granulating them into granular fertilizer.

Production Process

An NPK compound fertilizer production line typically includes the following key steps:

Mixing: Mixing nitrogen, phosphorus, and potassium fertilizers in appropriate proportions;

Crushing: Breaking up any agglomerated raw materials to ensure smooth subsequent processing;

Mixing: Using a blender to evenly mix the raw materials;

Granulating: Granulating the mixture using equipment such as twin-roll extruders, disc extruders, and drums;

Drying and Cooling: Wet granulation requires drying and cooling the granules;

Sieving: Removing impurities to ensure granule quality;

Packaging: Automatically weighing and packaging the finished product.

Equipment Types

Main equipment includes:

Crusher: Processes agglomerated raw materials;

Mixer: Twin-shaft horizontal or disc-type mixer for uniform mixing;

Pelletizer: Twin-roller extruder, disc, or drum mixer for granulation;

Screening Equipment: Rotary or vibrating screens for separating qualified products from impurities;

Packaging Equipment: Automatic weighing and packaging system.

Production Line Features

High Flexibility: Capable of producing compound fertilizers (such as organic fertilizers and bio-fertilizers) of varying concentrations and types;

Energy Saving and Environmental Protection: A dry-free, constant-temperature process reduces energy consumption;

High Level of Automation: Modern equipment supports continuous production, resulting in high efficiency.