Investigation and Analysis of the Causes of Recovery Boiler Economizer Failures, 2006 Engineering, Pulping, and Environmental Conference

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Data on 346 recovery boiler economizers in the USA and Canada were analyzed to determine the relationship between economizer failures and design, construction, operating and maintenance practices. The analysis shows that an order of magnitude reduction in failure frequency is possible with the mini-header design. Guidelines for specification and construction of recovery boiler economizers and a reference for operating and maintenance practices detrimental to economizers were developed in the course of the study.