PRODUCTION OF REFUSE DERIVED FUELS Pre-shredding
Household waste, bulky refuse Commercial waste, production waste
The single-shaft TERMINATOR F shredder is used for the shredding necessary for subsequence stages. Reliable shredding is guaranteed even with materials having high strength properties and of different types. The degree of shredding can be tailored perfectly to the material and subsequent stages by adjusting the cutting gap.
Separation by screening Separation of the fraction high in calorific value >100 mm is managed perfectly by the FLOWERDISC disc separator. Amongst the benefits this new development can boast are low-maintenance operation and high throughput whilst attaining a satisfactory level of selectivity and protection from contraries. After an Fe/Ne-separation stage, the MULTISTAR screen unit separates undersized particles having a suitable composition into a low calorific fraction, a medium calorific fraction and an inert fraction.
Pre-shredding
Screening
Fe/non-metal scrap Fuel fraction Low/ medium calorific
Fe
Fe/NE
Fe/NE
Fe/non-metal scrap
Screening
Ballistic separation
Inert fraction Swim/sink separation Inert, heavy fraction
Fuel fraction/ medium calorific
Post-shredding Fuel fraction/ high calorific
Shredding
Fuel fraction/ medium calorific
Ballistic separation Following FE/NE-separation, ballistic separators are used to cleanse the oversized particles of contraries which can reduce the calorific value or negatively impact the combustion process. The BRINI separation processes forms three fractions – a high calorific, two-dimensional lightweight fraction, a screen fraction and a heavy three-dimensional fraction. This can be separated further using the AQUASPLIT swim/sink separator.
Post-shredding With its exchangeable screen baskets, the RASOR post-shredder from KOMPTECH is suitable for the generation of both fuels for fluidized bed plants (particle size ≤100 mm) and injectable fractions for rotary furnace plants in the cement industry (≤ 30 mm). A medium calorific fuel fraction in the range 100-150 mm can also be generated by the (contrary-resistant) two-shaft CRAMBO shredder.
PRODUCTION OF REFUSE DERIVED FUELS
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