| 摘要 |
<p>A neutralization system for controlling the pH of the washwater used to clean and maintain polyacrylic bound glass forming equipment. The neutralization system (62) introduces a base solution (64) to a washwater solution (26) when the pH of the washwater solution contained in a closed loop washwater recovery system (12) falls below the range of about 8.0 to 8.5, thereby substantially reducing the corrosion rate of the components of the equipment associated with acidic polyacrylic acid binder (18), with the addition of an optional maleic acid cobinder or maleic anhydride cobinder and washwater solution. A closed-loop hoodwall washwater recovery system (100) may also be introduced in addition to the neutralization system that allows for the recovery and reuse of polyacrylic acid binder and optional maleic acid cobinder or maleic anhydride cobinder with a minimal amount of base solution, thereby minimizing degradation of insulation properties of polyacylic acid bound glass fiber products.</p> |
