In the fertilizer production industry, double roller press granulator and rotary drum granulator are two common types of granulation equipment. When companies choose equipment, besides the initial investment, long-term maintenance costs are a key factor affecting economic benefits.
Double roller press granulator
1.Wear Part Replacement Cost
Wear Parts: Rollers, molds (also called dies).
Replacement Frequency: Rollers typically need repair or replacement every 6-12 months. Mold lifespan is about 1-2 years.
2.Energy Consumption and Operating Cost
Power Needs: Primarily relies on a high-pressure hydraulic system, requiring significant power.
Energy Use: Has high instantaneous load, but energy consumption stabilizes relatively once running.
3.Labor and Maintenance Input
Daily Maintenance: Needs regular checks of hydraulic oil and lubrication systems, plus cleaning material residue off rollers.
Skill Level: Requires specialized technicians to adjust mold clearances.
1.Wear Part Replacement Cost
Wear Parts: Scraper blades, inner liners, support rollers.
Replacement Frequency: Scraper blades are replaced every 3-6 months. Inner liners are replaced every 1-2 years.
2.Energy Consumption and Operating Cost
Power Needs: Relies on an electric motor to rotate the drum, requiring lower power.
Energy Use: Runs smoothly, but needs supporting drying equipment, increasing total energy consumption.
3.Labor and Maintenance Input
Daily Maintenance: Requires frequent scraper blade position adjustments and cleaning of material buildup on the drum wall.
Skill Level: Operation is relatively simpler, but requires monitoring of granulation moisture levels.
Overall, the double roller press granulator has higher single maintenance costs but longer intervals between services, making it suitable for large-scale production. The rotary drum granulator needs more frequent maintenance but each session costs less, making it a better fit for small and medium-sized enterprises. Companies should choose based on their specific production needs and maintenance capabilities.