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Pneumatic transport of fly ash, drying and storage of gypsum suspension,Sostanj, Slovenia

Fly Ash Handling

Supply and installation of a pneumatic transport system for fly ash and a plant for gypsum suspension drying and storage for 600 MW Unit 6 at thermal power plant Sostanj

 

Customer  Thermal power plant Sostanj, Slovenia


Commissioning 2015


Services

Basic and detail engineering, cold and hot run testing, training of the staff, after-sales-service, technical inspections, maintenance and support during the 30-day trial run


Scope of supply       

  • Plant design documentation (PZI) 
  • As built documentation (PID)
  • Pneumatic transport of fly ash and coarse ash (multivessel system) incl. pressure vessels with equipment and reservoir for compressed air, pipelines for air, fly and coarse ash, compressors for fly ash transport, bag filters, coarse ash hoppers, steel and sheet-metal structures
  • Gypsum suspension drying and storage incl. vacuum belt filter (VBF) with vacuum pump, pumps for process water, gypsum washing and filtrate, pipelines, belt conveyors – below VBF, storage equipment for gypsum, instrument air system

Technical data

Pneumatic Ashtransport 

  • Transport of fly ash: maximum capacity  2 x 70 t/h
  • Transport length: 288 m, approx. 50 m vertically upwards
  • Transportof coarse ash: 11,5 t/h
  • Transport length: 130 m, approx.. 50 m vertically upwards

Gypsum drying and storage

  • Gypsum drying: Drying capacity, max. 2 x 35 t/h of gypsum suspension
  • Humidity of gypsum suspension: 55%
  • Humidity of dried gypsum: < 10%
  • Gypsum storage: storage capacity of gypsum silo: 3,000 m²
  • Capacity of silo filling: 40 t/h
  • Capacity of silo discharge, min.: 50 t/h, max.:80 t/h
  • Loading of trucks/wagons: 80 t/h
  • Gypsum transport to mixer: 50 t/h

 

Storage capacity
0
m3, gypsum silo
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