RDF fuel, the full name of which is Refuse Derived Fuel, is a fuel that is recovered and processed from municipal solid waste (MSW) through a specific process. These wastes undergo pre-treatment processes such as sorting, crushing, sorting, and drying to remove non-combustible materials such as metals, glass, and plastics, retain combustible parts such as paper, plastics, wood, and textiles, and are further processed (such as compression molding) to make solid fuel.

The main characteristics of RDF fuel are its high calorific value, low moisture content, and relatively uniform combustion performance. Since most of the non-combustible materials are removed, the calorific value of RDF fuel is usually higher than that of the original garbage, and fewer pollutants are generated during the combustion process. This makes RDF fuel a renewable energy source that can replace traditional fossil fuels and is widely used in cement manufacturing, heating engineering, power generation engineering and other fields.

The preparation process of RDF fuel usually includes the following steps:

Collection and classification: First, collect recyclable waste from municipal solid waste and conduct preliminary classification and processing.

Crushing and sorting: The classified waste is sent to the crusher for crushing, and then non-combustible materials such as metals and glass are separated through magnetic separation, air separation, screening and other processes.

Drying: The separated combustible part is sent to the dryer for drying to reduce its moisture content and improve combustion efficiency.

Molding: The dried combustible material is compressed or extruded to form solid fuel rods or particles for easy storage and transportation.

The use of RDF fuel can not only reduce the amount of urban solid waste landfill and reduce environmental pollution, but also save fossil fuel resources and promote the development of circular economy. RDF drying production line is a waste treatment equipment with high efficiency, environmental protection, economy and flexibility, which is of great significance to promote the development of circular economy and energy conservation and emission reduction.