The Benefits of Third Party Fabric and Bag Quality Assurance/Quality Control

摘要

Fabric filters (or baghouses) are gradually becoming the preferred technology choice to retrofit or replace aging electrostatic precipitators (ESP's) for the enhanced control of partic-ulate matter (PM) emissions from coal-fired boilers (CFB). The heart of any baghouse is the filter bag, with filter bag replacement typically being one of the largest operating expenses of the bag-house system. Millions of dollars are spent each year on new bag sets, yet only recently have third party quality assurance/quality control (QA/QC) programs been employed to ensure that what is provided matches what has been ordered. The team approach, which doesn't end with the purchase of the new bag set, but is sustained during and long after the installation to monitor strength and flow characteristics of the bag set, track bag failures, identify the root cause of bag fail-ure(s), and apprise the team of innovations in the filter industry, which may be applicable to future bag sets. The following provides a case history showing the merits of such a program.