Diammonium Phosphate (DAP) Fertilizer Production Line (50,000-600,000 t/y)
Complete granular DAP fertilizer production system based on PR+PN process integrating pipe-reactor (PR) and pre-neutralizer (PN)
- Production capacity: 50,000-600,000 t/y
- Product quality: Complies with GB/T 10205-2009 Monoammonium Phosphate and Diammonium Phosphate
DAP can be produced using the following industrial methods: Pre-neutralization process (PN), Pipe reactor process (PR), Combined pipe reactor + pre-neutralizer process (PR+PN).Among these, the PR+PN process is currently the most widely adopted in industrial DAP production.
The PR+PN process mainly consists of the following steps: pre-neutralization, pipe reactor reaction, slurry spray granulation, drying, cooling, screening, coating, packaging, and off-gas treatment.
- Retains the advantages of the pre-neutralization process, including easy operation, stable performance, and high on-stream factor
- High thermal efficiency with effective heat utilization
- Benefits from the pipe reactor process with lower recycle ratio, simplified equipment configuration, and reduced energy consumption
- Good adaptability to various DAP product specifications
- Multiple feed points increase system complexity
- Higher requirements for process control and automation
- Phosphoric acid storage tank
- Ammonia tank
- Pre-neutralization tank
- Flow meter
- Pipe reactor
- Spray pump
- Ammonia distributor
- Granulator
- Hot air furnace
- Dryer
- Cooler
- Screening machine
- Coating machine
- Packaging machine
- Off-gas treatment system
Delandi (Nantong) Machinery is dedicated to the development of the fertilizer industry, focusing on process design, production equipment manufacturing, and production performance improvement for fertilizer manufacturing projects. We bring together a team of experienced professionals with deep technical knowledge and long-term industry involvement.