Introduction
Refuse-derived fuel (RDF) production is a critical component of modern waste-to-energy systems. By converting combustible waste into standardized fuel, RDF plants provide an alternative energy source for cement kilns and industrial boilers.
Designing an efficient RDF production line requires understanding both waste processing technology and fuel quality requirements.
Some facilities first process waste using a combustible waste shredding production line.
RDF Production Process
The RDF production process typically includes several stages.
Waste Feeding
Mixed waste or combustible waste is delivered to the processing facility and fed into the system through conveyors or feeders.
Primary Shredding
A primary shredder reduces large waste items into manageable sizes.
Screening
Screens separate materials by size to remove fine organic fractions.
Metal Removal
Magnetic separators remove ferrous metals while eddy current separators recover non-ferrous metals.
Air Separation
Air classifiers remove heavy inert materials and concentrate combustible fractions.
Secondary Shredding
Final shredding produces RDF fuel with a consistent particle size.
Final fuel size reduction is commonly achieved using a waste-to-energy shredder.
RDF Fuel Specifications
Typical RDF fuel characteristics:
| Parameter | Typical Range |
|---|---|
| Calorific Value | 12–18 MJ/kg |
| Moisture Content | 15–25% |
| Particle Size | 30–80 mm |
Conclusion
A properly designed RDF production line enables efficient conversion of combustible waste into valuable alternative fuel while reducing landfill dependence.