RDF/SRF Shredder for Refuse Derived / Solid Recovered Alternative Fuels Prodution
What Production Steps Are Involved in RDF?
RDF/SRF Shredder for Refuse Derived / Solid Recovered AF Alternative Fuels Prodution
RDF has many facets, meaning it can be further specified into TDF (Tyre Derived Fuels), SRF (Solid Recovered Fuels) and AF (Alternative Fuels).
RDF stands for Refuse Derived Fuel. This fuel is produced from combustible components that the industry calls Municipal Solid Waste-MSW for short. This waste, usually taken from industrial or commercial sites, is shred, dried, slectected, sorted and then finally burned to produce electricity. Refuse Derived Fuel is a renewable energy source, Selected waste and by-products with recoverable calorific value can be used as fuels in a cement kiln, replacing a portion of conventional fossil fuels, like coal, if they meet strict specifications. Sometimes they can only be used after pre-processing to provide ‘tailor-made’ fuels for the cement process.
What Production Steps Are Involved in RDF?
Because RDF can process such a variety of materials, there are different techniques to ensure the creation of a homogenous material that can be used as a substitute fossil fuel and act as a reduction agent in steel furnaces. The most common way of extracting RDF from Municipal Solid Waste is to combine mechanical and biological treatments methods. Such methods include, but are not limited to:
Bag splitting
Magnetic separation
Sorting
Coarse shredding
Size screening
Fine secondary shredding
Air classifier (density separation)
Core Technology in RDF/SRF Alternative Fuels production-Pre-shredder&Fine Shredder
RDF can be used in a variety of ways to produce electricity or as a replacement of fossil fuels. It can be used alongside traditional sources of fuel in coal power plants. In Europe RDF can be used in the cement kiln industry, where strict air pollution control standards of the Waste Incineration Directive apply. The main limiting factor for RDF / SRF use in cement kilns is its total chlorine (Cl) content, with mean Cl content in average commercially manufactured SRF being at 0.76 w/w on a dry basis (± 0.14% w/wd, 95% confidence). RDF can also be fed into plasma arc gasification modules & pyrolysis plants. Therefore, to ensure that RDF combustion with continuous high calorific value, qualified preshredder and fine shredder are the Core Technology in RDF/SR production.
Zhongan pre-shredders and fine shredders are golden partner for RDF production. They shred the delivered industrial or municipal waste to a homogeneous size before it is finally burned as fuel in the course of biopower or cement production.
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