Precautions for the Production Process of a Disc Granulator Production Line
During operation of a disc granulator production line, strict control is required at every stage, including raw material preparation, feeding, granulation, drying, screening, return material handling, and maintenance of fertilizer production machine, to ensure uniform granules, high forming rate, and stable output.
Raw material pretreatment is fundamental. Fermented materials must be fully decomposed, free of hard lumps and iron wire debris, and the moisture content should be controlled between 25% and 35%. Excessive moisture will cause sticking to the discs, while excessive dryness will make pelleting difficult. Precise ingredient proportioning and uniform mixing are essential to avoid excessive powder in certain areas, which can lead to unstable pelleting.
Feeding should be continuous, uniform, and quantitative, avoiding inconsistent amounts to prevent uneven material layer thickness within the disc. The feed position should be appropriate to ensure uniform rolling of the material within the disc, avoiding uneven loading that could cause equipment vibration.
When using a disc granulator, it is crucial to control the disc angle, rotation speed, and spray water volume. The disc angle is generally adjusted to 45°–55°, the rotation speed should be moderate, and the water volume should be a uniform mist spray. Too much water will cause clumping, while too little water will prevent granulation. It is essential to clean any material adhering to the disc walls promptly to ensure a smooth surface inside the disc.
The drying temperature should not be too high; slow, low-temperature drying is recommended to prevent granule cracking and pulverization. The output moisture content should be controlled below 10% for easy storage and to prevent mold growth.
The screening process requires timely grading. Qualified granules should be packaged, and returned material should be recycled back to the disc granulator. A stable return ratio is essential for continuous production. The screens should be inspected and cleaned regularly to prevent clogging that could affect particle size.
During equipment operation, regularly check the disc, reducer, motor, and support rollers, ensuring good lubrication and secure mounting. Simultaneously, maintain proper dust control and prevent clogging to avoid excessive dust and obstructed discharge.
Standardized operation throughout the process, stable parameters, timely material removal, and regular maintenance are crucial for smooth operation of the disc granulation production line, resulting in high-quality granules, high output, and minimal malfunctions.
