TST ZZS350/1600/3

Air Classification & Cleaning System Equipment Description The TST Zig-Zag Air Shifter (ZZS) is a closed-loop air separation and cleaning system designed to separate bulk materials according to their specific weight (density). Using controlled upward airflow within a multi-stage zig-zag separation channel, the system efficiently removes light contaminants from heavier material fractions in a fully dry process. Operating Principle Material is fed into the zig-zag separation channel via a rotary airlock. An adjustable upward airflow counteracts gravity, causing light particles to be lifted and extracted, while heavier particles fall downward and are discharged separately. The zig-zag geometry repeatedly re-classifies material, improving separation accuracy. Process air is cleaned and recirculated in a closed-loop circuit. System Components Feed Rotary Valve Ensures controlled, continuous material feed and maintains airlock between system and upstream equipment. Zig-Zag Separation Channel Primary density-based sorting chamber; multi-stage design maximizes air–material interaction and separation efficiency. Blower / Fan System Generates adjustable upward airflow; typically equipped with variable frequency drive (VFD) for precise control. Cyclone or Dust Extraction Unit Separates light fraction, dust, and fines from the air stream; cleans air before recirculation. Control Panel Centralized control of airflow, fan speed, operating parameters, and maintenance functions. Typical Technical Data (Indicative – depends on material and configuration) Separation principle: Air classification by density Process type: Dry, closed-loop air system Throughput range: Project-specific (typically several t/h) Air volume: Adjustable via fan and control system Cut point: Adjustable via airflow and feed rate Installation: Vertical or semi-mobile configuration Key Advantages Dry separation – no water consumption Efficient removal of light contaminants (film, paper, dust, organics) Closed-loop airflow reduces dust emissions and energy loss Adjustable separation performance for different materials Robust industrial design for continuous operation Typical Applications Recycling and waste processing Glass cleaning and cullet preparation RDF / SRF and shredder residue treatment Plastic, packaging, and film separation Bulk material and mineral cleaning