As essential equipment in modern fertilizer production, disc granulators require quality assurance measures to operate effectively. Understanding these steps not only boosts granulation efficiency but also enhances fertilizer quality.

1.Optimize Material Ratios and Pre-Treatment

Quality starts with the right material mix. Precisely measure each ingredient, screen out impurities, and maintain moisture between 8-12%. Keep particle size consistent.

2.Adjust Equipment Parameters

The three parameters of disc granulators, namely the inclination angle, speed and side height, directly affect the product quality. Generally, the disc inclination angle should be adjusted between 35-55 degrees and the speed should be controlled within the range of 10-25rpm. Regularly check disc wear—repair or replace damaged parts to keep the surface flat (error ≤2mm). This ensures uniform granule formation.

3.Control the Production Process

A stable spray system is critical. Maintain atomized water pressure at 0.2–0.4 MPa and adjust nozzle angles for full coverage. Use staged watering: add 70% water first to form seed pellets, then the rest to grow granules. Ideal temperature: 50–70°C.

4.Implement Maintenance Routines

Follow a preventive maintenance schedule. Clean residue off the disc after each shift and check drive-system lubrication. Weekly: grease main bearings with high-temperature lubricant. Monthly: inspect gear wear in reducers. Keep equipment in top condition.

By implementing the above measures, the production quality of the disc granulator can be significantly improved, the product qualification rate can reach more than 95%, and at the same time, energy consumption can be reduced to achieve high-quality and high-efficiency sustainable production.