SED-100PWZL-A — Spray Granulator
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SED-100PWZL-A 'DF' dedicated pressure spray-granulation system for dry-flowable (DF) pesticide formulations. Dry-product output ~100 kg/h (reference, varies by formulation); slurry throughput ~250 kg/h; water evaporation
مبدأ العمل
Compressed slurry(solids content~40 %) is pumped by an imported WANNER three-piston diaphragm pump(VFD-controlled, 2–6 MPa) through high-pressure nozzles(pressure atomisation) into the spray-drying tower. Direct-fired natural-gas hot air(Riello linear burner, inlet 180–200 °C) enters through a perforated + corrugated-plate flow straightener for uniform air distribution. Atomised droplets dry in co-current flow; tower bottom uses a patented internal-cyclone structure(increases bottom discharge rate from~70 % to 90–95 %). Fine particles are captured first by a long-cone high-efficiency cyclone separator(~95–98 % efficiency), then by a pulse-jet bag filter, and finally scrubbed by a wet-foam dust scrubber(exhaust dust ≤15 mg/m³). A patented fines-return device recycles cyclone and bag-filter fines back into the main tower for secondary granulation. Outlet temperature controls feed pump speed(VFD) to maintain stable product moisture; tower pressure controls induced-draft fan frequency(Siemens VFD). A colour camera monitors the spray-gun nozzles.