Patent DE-102007029498-A1 (DE)
Title: Processing plastic-containing waste from mechanical-biological plants for extracting plastic products, comprises crushing the waste in a processing module, where the coarse material is led to aeroflow sorting
Inventor: JAECKEL HANS GEORG
IPC: B02C13/00
Filed: 2007-06-25
Abstract: The method for processing plastic-containing waste from mechanical-biological plants, in which domestic refuse, bulky refuse and industrial refuse are processed for extracting plastic products, which is suitable for further processing in a dieselization plant, comprises crushing the waste into less than 180 mm with subsequent classification in a first processing module, where the coarse material is led to aeroflow sorting, in which textiles and paper develop as lightweight plastic film and wood, stones and metal develop as heavy thick-walled plastic. The method for processing plastic-containing waste from mechanical-biological plants, in which domestic refuse, bulky refuse and industrial refuse are processed for extracting plastic products, which is suitable for further processing in a dieselization plant, comprises crushing the waste into less than 180 mm with subsequent classification in a first processing module, where the coarse material is led to aeroflow sorting, in which textiles and paper develop as lightweight plastic film and wood, stones and metal develop as heavy thick-walled plastic, subjecting the heavy material to aeroflow sorting with simultaneous magnetic separation to develop a fine and/or weak magnetic steel component and a lightweight material, leading the lightweight material to a sieve classification, whose coarse material is supplied as raw material to a second processing module, and adjusting the plastic-containing products already processed in the first processing module or mechanical-biological plants, in the second processing module in the requirements of raw materials through a material drying, a magnetic separation and a special conditioning of the plastic-containing material, after which the further processing of the plastic-containing material is carried out. In the magnetic separation, steel parts and non-ferrous metals are removed from external feed stocks. The two processing modules are separately or consecutively used depending on lumpiness and material composition of the feed-stock. The sieve classification is carried out by a drum sieve machine of 40 mm after crushing. The fine material of the sieve classification of less than 40 mm is led to rotting, fermentation or disposal. The heavy material of the aeroflow sorting is subjected to the magnetic separation for bearing rough steel portions. The process is carried out by the aeroflow sorting with the magnetic separation for separating light material, heavy material and fine iron and/or weak magnetic component. The target material is separated in a magnetic drum separator (1), which is upstreamed to a glass nozzle (3). The heavy material downwardly falls and delivers above the magnetic drum. The magnetic product is separated from the magnetic drum separator. The lightweight material is delivered by air-jet sifter in a direction and/or over the magnetic drum. The lightweight material is subjected to the sieve classification into 60-40 mm after the aeroflow sorting with the magnetic separation. The drying is upstreamed to the crushing of 60 mm. The special conditioning is downstreamed to the sieve classification of 5 mm. The fine material of the sieve classification is led to dieselization. The coarse material is led back for special conditioning. Independent claims are included for: (1) a plant for processing plastic-containing waste from mechanical-biological plants for extracting plastic products, which is suitable for further processing in a dieselization plant; (2) a magnetic drum separator for separating steel parts and alloy of weak magnetic steel part from a material flow; and (3) a tube vibrating mill for conditioning and crushing plastic-containing products from mechanical-biological plants.