Boiler Water.pdf - The Jamaican Sugar Industry

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Internal Boiler Water Treatment Programs • Carbonate Cycle • Phosphate-hydroxide • Coordinated pH-phosphate • Phosphate and polymer • Chelant Treatment and/or chelant polymer • All-polymer Confidential and proprietary to Garratt-Callahan Company 28
Internal Boiler Water Treatment Programs • Chelant Treatment and/or chelant polymer – Chelant react with residual divalant metal ions to form soluble complexes. – The complexes are removed through continues blowdown. – Inconsistency in boiler water chemistry create an imbalance: • Excessive chelant will result in attack on boiler tubes. • The presents of dissolved oxygen will result in greater deposition problems. Confidential and proprietary to Garratt-Callahan Company 29
Page 1 and 2: Sugar Boiler Water Treatment Techno
Page 3 and 4: Typical Firetube Boiler Confidentia
Page 5 and 6: Boiler Types Water-Tube Units - Has
Page 7 and 8: Boiler Types Water-Tube Unit Types
Page 9 and 10: Boiler Types Water-Tube Unit Types
Page 11 and 12: Condensate • Condensate from the
Page 13 and 14: Make-up Water Softener 13
Page 15 and 16: Deaerating Heaters - Oxygen Removal
Page 17 and 18: Deaerating Heaters • Mechanical D
Page 19 and 20: Pressure vs. Temperature • For ev
Page 21 and 22: Oxygen Removal - Reducing Agents an
Page 23 and 24: Oxygen Removal / Passivation Oxygen
Page 25 and 26: Oxygen Removal / Passivation • Ch
Page 27: Internal Boiler Water Treatments Co
Page 31 and 32: Crystal Modification
Page 33 and 34: Internal Boiler Water Treatment Pro
Page 35 and 36: Do you have Boiler Problems? Confid
Page 37 and 38: Borescope Summary Mill Clean Slight
Page 39 and 40: Light Scale (1/32”) Confidential
Page 41 and 42: Calcium Phosphate Scale Typical 1/1
Page 43 and 44: Heavily Scaled Confidential and pro
Page 45 and 46: Heavy Scaling / Corrosion Confident
Page 47 and 48: Chip Scale Confidential and proprie
Page 49 and 50: Pit Corrosion Confidential and prop
Page 51 and 52: Scale & Corrosion Confidential and
Page 53 and 54: Under Deposit Corrosion Confidentia
Page 55 and 56: EFFECTS OF DEPOSIT AND SCALE FORMAT
Page 57 and 58: 3. Deposits can also create differe
Page 59 and 60: Cost of Scale Formation Assumptions
Page 61 and 62: Additional Costs of Scale Formation
Page 63 and 64: Boiler Tube Scale Deposit Analyses
Page 65 and 66: NEW DIRECTIONS IN BOILER WATER TREA
Page 67 and 68: • Tube samples • Arch (Nose) tu
Page 69 and 70: • 1 inch length tube “bracelet
Page 71 and 72: • 8X magnification • Original d
Page 73 and 74: • 8X magnification • Diminished
Page 75 and 76: • 8X magnification • Clean arch
Page 77 and 78: Conductivity Meter Setup 1. Install
Page 79 and 80:
Chemical Feeding Methods and Feed P
Page 81 and 82:
Anti-Foams 1. Counteracts the surfa
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