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Valmet, Yankee Hood, Diameters 2500mm, 3658mm and 4572mm

Valmet, Yankee Hood, Diameters 2500mm, 3658mm and 4572mm

Description

  1. Overview
    1. Item 001: Yankee hood diameter 2500 mm, paper width on yankee 2100 mm, temperature yankee hood (wet & dry) 500 °C
    2. Item 002: Valmet yankee hood diameter 3658 mm, face width 2530 mm
    3. Item 003: Built by Fomat yankee hood diameter 4572 mm, paper width on yankee 2750 mm, hood is new and never used, built by Fomat, cylinder diameter 4572 mm, temperature yankee hood (wet & dry) 530 °C
  2. Production Data
    1. Type of paper: tissue
    2. Raw material: virgin pulp and waste paper
    3. Machine type: twin wire
    4. Number of press: 1
    5. Max drying capacity (100% eff.): 50 with gas hood; ton/day
    6. Basis-weight range at reel max deckle at yankee: 16 - 21 2500 (max drying deckle is 2390 mm) gr/m2mm
    7. Deckle at reel: 2500 mm
    8. Dryness after press: 34 (supposed) %
    9. Dryness at reel: 94.5 %
    10. Maximum operating speed: 700 m/min
    11. Design (balance) speed: 900 m/min
  3. Yankee Cylinder Data
    1. Yankee diameter: 3658 mm
    2. Face width: 2530 mm
    3. Maximum operation pressure: 5 bar
    4. Internal surface smooth
    5. Shell material: cast iron FC30
    6. Shell thickness: 60 mm
    7. Yankee manufacturer: Shinyin Machinery Ltd
    8. Yankee heat transfer coefficient: 520 W/m2 K
  4. General Data
    1. Electric power supply: 400 V; 50 Hz
    2. Electric control supply: 24 VDC
    3. Max boiler steam pressure: 10 bar
    4. Compressed air steam pressure: 6 bar
    5. Net calorific power: 10900 kcal/kg
    6. Height above sea level: 20 m
    7. Distance between hood & mezzanine: 1 m
  5. Gas Fired Hood Data @ 50 TPD
    1. Total machine evaporation: 3750 kg/h
    2. Yankee evaporation: 1086 kg/h
    3. Hood evaporation: 2664 kg/h
    4. Specific evaporation: 196.5 kg/h m2
    5. Wet end hood wrap angle: 135 °
    6. Dry end hood wrap angle: 100 °
    7. Blowing air operation temperature: 460 °C
    8. Blowing air max temperature: 500 °C
    9. Blowing air speed: 119 m/s
    10. Yankee steam consumption @ 4.5 barg: 1920 kg/h
    11. Hood LPG gas consumption: with heat recovery 234 kg/h
    12. Fans elect. power consumption: 201.8 kW
    13. Specific steam consumption: 920.1 kg/ton p
    14. Specific hood elect. consumption: 96.9 kW/ton p
    15. Specific hood LPG gas consumption: 112.5 kg/ton p
  6. C.2.1 - Recirculation & Blowing Fan (V1A/B - V2 A/B) (2nd Hand by Valmet)
    1. Type: centrifugal
    2. Flow: 26 m3/s
    3. Static pressure 20°C: 7000 Pa
    4. Consumed power: 37 kW
    5. Motor installed: 55 x 2 kW
  7. C.2.3 - Burner (G1-G2) 600 RAH - (2nd Hand by Valmet)
    1. Net calorific power: 10900 kcal/kg
    2. Consumed power: 1970 kW
    3. Installed power: 1970 (each) kW
    4. Gas consumption: 234 kg/h
  8. C.2.5 - Exhaust Fan (V3) (2nd Hand by Valmet)
    1. Technical parameters CHB 27
    2. Type: centrifugal
    3. Flow: 8 m3/s
    4. Static pressure 20°C: 3100 Pa
    5. Consumed power: 17 kW
    6. Motor installed: 30 kW
  9. C.2.6 Combustion Fan (V4) (2nd Hand by Valmet)
    1. Technical parameters HD66
    2. Type: centrifugal
    3. Flow: 1.7 m3/s
    4. Static pressure 20°C: 13250 Pa
    5. Consumed power: 22.6 kW
    6. Motor installed: 45 kW
  10. C.3.1 - Heat Exchanger
    1. Type: air-to-air
    2. Exhaust air inlet temperature: 290 °C
    3. Fresh air temperature: 20 °C
    4. Combustion air temperature: 120 to 140 °C
    5. Exhaust air temperature: 150 °C
    6. Exhaust air flow: 13180 kg/h
    7. Heat recovered: 510 kW