Minerals - Cement

ENVEA UK’s involvement with the Cement Industry has lead to the development of many novel and unique solutions for in-stack particulate monitoring. Working worldwide in conjunction with the industry’s major producers, ENVEA UK provides an unparalleled range of instrumentation suitable for aggressive conditions and to help not only to protect our environment by aiding legislative compliance, but also in reducing operator costs by reducing filter maintenance and process downtime.


ENVEA UK's range of technologies are matched to the differing process conditions found in cement plant

Bagfilters are widely in use as the preferred emission abatement for cement plant, with up to 20 or more separate bagfilters for larger plant, and a range of sizes and chamber configurations in use. Under normal circumstances, emissions are well below emissions limits of 30 or 50mg/m3, however there is a growing need for continuous monitoring to understand how the arrestment plant is working and provide information to help locate and replace leaking bags early on before failures can create contagious failures in other bags.

For example, European cement plant operators are faced with a changing regulatory regime, as cement kilns using waste as a fuel source (eg tyres, plastics and municipal waste) are classified as co-incineration and therefore fall under the European Waste Incineration Directive 2000/76/EC (WID), and particulate emissions monitoring systems must be upgraded to comply with standards EN 14181 and EN 13284-2. Because of the lower emission limits in force, cement kilns and a growing number of other processes are replacing electrostatic precipitators with high temperature bagfilters to abate emissions, which are exposed to elevated environmental stresses and therefore are more prone to failure. These large, multi-compartment bagfilters can be monitored on individual filter compartment outlets, providing data to plant operators which permits location of faulty and failing filter media before gross failure occurs. This in turn allows efficient operation and control of bagfilter arrestment plant, and considerably reduces maintenance costs and expensive process downtime.