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POWER PLANT INCL. BOILER - BOILER 88 MW - TURBINE 22.5 MW

Description POWER PLANT INCL. BOILER - BOILER 88 MW - TURBINE 22.5 MW
Ref. No. POWERPLANT200501
Year 2001 -2009
Brand FOSTER WHEELER, SIEMENS, HONEYWELL ETC.
Qty. 1 Second-hand power plant including boiler (BFB – boiler bubbling fluidized bed)
Mfc. Foster Wheeler, Siemens, Raumaster, YIT Corporation, Honeywell,
Built 2001, 2002, 2006, 2009 Revision
BFB Boiler – 88 MW Steam turbine – 22.5 MW
Main Steam Cycle
BFB boiler K7
– Some parts removed and storaged indoor at the paper mill area
– Boiler is made electrically safe (cables cut)
– Dry conservation ongoing since 2014 (tubes filled with nitrogen, dry air circulation)
– Steam Turbine VP4 (in storage)
Generator (in storage)
Power Plant – Function
Primary function is to produce steam for the Paper Mill reliable and economically
Secondary functions
Burning of the Paper Mills (PM) waste wood
Incineration of sludge from the PM WWTP
Production of flue gas to the PCC (precipitated calcium carbonate) plant
Electricity production
District heating production
Scope of supply - main machinery and key components
Feed water pumps and motors 2 pc High-pressure preheater, feed water heater
Feed water valves Injection water system
Steam drum Combustion chamber
Fuel drop funnel 4 pc Start-up burners 2 pc
Load burners 2 pc Waste oil burner, waste oil tank
Natural gas filters Economiser
Air-preheater Super heater
Exhaust system Main steam valve
Safety valves Dust removing system
Bed material system, bed sand silo Bed sand preparing
Bed lime system, lime silo Furnace ash system
Fly ash system, fly ash silo and screws Primary air blower
Secondary air blower Twist grip blower
Bag filter Flue gas blowers 2 pc
Flue gas scrubbers, lye system, scrubbers sludge system
Safety locking system Nitrogen preservation system
Chemicals dosage and chemical pumps Sample system
Chimney
Technical Data
BFB-boiler K 7
Mfc. Foster Wheeler Oy Commissioning
Heat Output 88 MWth Steam parameters
Feed water temp. 135-190°C Flue Gas Exit temp.
Boiler Efficiency 88.5% SO2 Emissions
NOx < 425 mg/Nm3 PM
Operation time 88 000 hour Latest revision in 2009 (air preheater)
Maintenance revision annually Operation manual
Main Fuels Bark, saw dust, wood chips and waste wood
Sulphur <0,05% Moisture 30-65% LHV 3.7-6.9 MJ/kg
Peat Sulphur 0.25% Moisture 40-58% LHV 6.3-11.3 MJ/kg
Sludge from WWTP
Sulphur 0.2 – 1.7% Moisture 65-75% LHV >0.5 MJ/kg max. 7% of fuel power
BFB Boiler K7 - Flue Gas Treatment
Bag Filter Mfc. Alstom 4 chambers
376 bags 7 m long
DAS (Dry Absorption System) Pre-coating with Ca(OH)2
Max. operating temperature 200 °C
Flue Gas Scrubber Mfc. Ehox Tuote
2 scrubbers - 1 in operation 27 Nm3/s, 170°C in
20 Nm3/s, 43°C out Heat Recovery 18 MW at low temperature, 60°C
Solid fuel system for K7 (NOT ALL AVAILABLE BY THE OWNER)
Mfc. Raumaster Built
Maintenance revision annually Operation manual
Excluded Not available by owner
Bar conveyor Crusher Fuel batching screw, fuel-receiving pocket
Scraper conveyor to screen hall Screen system
Scraper conveyor to silos and scraper conveyor on the silos
Peat silo, fuel-batching screw (batching screw not existing)
Bio fuel silo, fuel batching screw (batching screw not existing)
Fuel line from silos
Included
Fuel line 1 from SFS to the boiler Fuel line 2 from SFS to the boiler
Back-up fuel pocket and fuel batching screw Fuel batching screw at power plant
Robbery fuel batching screw Batching bin 2x50 m3
Scraper conveyor at the boiler 2 pc Fuel batching pockets & fuel batching screw
Fuel feeder 4 pc Fuel sample crusher
Extinguishing steam system
Sludge system for K7
Built 2002
Excluded Not available by owner
Compressor Sludge pneumatic press
Sludge pipe cleaning system Blowpipe to the power plant
Included
Cyclone Sludge silo and batching screw
Automation and electrical equipment, spare parts for K7
Included
Mfc. Honeywell Type
Field instruments (as it is on the field) Motors
Frequency changers Automatic valves etc. (as it is on the field)
Auxiliary devices (as it is on the field) All available existing specific spare parts
Excluded
Radioactive sources
Steam Turbine/Generator VP4 (removed & in storage)
Turbine
Mfc. Siemens Type
Power 22.5 MW Reactive power
In operation since 2009 until 2012 Operation time 24 000 h
Revolution 8274 RPM Inlet pressure
Inlet temp. 525 °C Inlet flow
Tap-off pressure 3.7 – 24.1 bar Tap-off temp.
Tap-off flow 7.9 – 33.5 kg/sec. Outlet pressure
Outlet temp. 144 – 205 °C Outlet flow
Operation manual
Generator
Mfc. Siemens Teho Generation AG Type
Nominal output 28.5 MVA Power
Voltage 6.3 kV (+5/-10%) Rated current
Frequency 50 Hz In operation since 2009 until 2012
Operation time 24 000 h Operation manual
Included
Turbine Gearbox Turning gear Generator
Generator cooler Oil system Siemens automation system
Automation and electrical equipment (as it is on the field)
Motors Frequency changers Valves
Auxiliary devices (as it is on the field) All available existing specific spare parts
Water treatment system at the power plant
Mfc. YIT Built
Raw water purification and desalination Operation manual
Raw water purification
Max capacity 146 m3/h Capacity
Included
Pumps and compressors Tanks
Flock-filtering system 2 pc Preheater of raw water
Automation and electrical equipment (as it is on the field)
Motors Frequency changers Valves
Auxiliary devices (as it is on the field) All available existing specific spare parts
Desalination
Net capacity 2 x 72 m3/h
Included
Cation exchangers 2 pc A1/A2 exchangers 2 pc
MB exchangers 2 pc Tanks
Pumps Heat exchanger dilution water of lye
Automation and electrical equipment (as it is on the field)
Valves Motors Frequency changers
Auxiliary devices (as it is on the field) All available existing specific spare parts
Steam, condensate and feed water system
Included
Feed water tank Condensation tank
Purification of condensation, precoat-system Condensed steam pumps
Steam tanks Steam condenser
Reduction valves Steam-pressure accumulator
Cooling water system
Automation and electrical equipment (as it is on the field)
Valves Motors Frequency changers
Common electrical equipment
Process central
Distribution transformers
1 pc 400 V 1.25 MVA 2 pc 690 V 3.15 MVA

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