It’s all in the bag

Published 12 January 2015

A correctly-selected air pollution control system will not only control emissions to air successfully, but will also contribute to the cement plant’s overall efficiency. By John B Johnson, FLSmidth AFT, USA.

AFT fibreglass filter bags

The poor performance of pollution control equipment at a cement plant can be caused by changes in process or raw materials, increases in temperature, air flow or velocity, poor maintenance or improper filter media selection. An analysis of the complete process system is likely to reveal the root cause and possible solutions. But often, changing the filter media and customising these to the system will improve overall performance. Experience shows that carefully-crafted, high-quality filter bags translate into better performance in the field.

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