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Ketton plant upgrades ESPs

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World Cement,


Hanson Cement, a subsidiary of HeidelbergCement, has recently replaced two ESP filters at its Ketton plant to improve recovery of dust particles, as well as reducing particulate emissions. Fairport Engineering acted as project contractor.

Hanson Cement, a subsidiary of HeidelbergCement, has recently replaced two ESP filters at its Ketton plant to improve recovery of dust particles, as well as reducing particulate emissions. Fairport Engineering acted as project contractor.

The Ketton plant first approached Fairport Engineering in early 2016 to discuss the plant for replacing the ESP on mille 9 and 10. Hanson had already identified its preferred contractors but required an organisation to act as main contractor, taking overall responsibility for the project, including control of the site as per UK regulations.

Fairport developed a proposal that would minimise disruption to cement production that planned for the work to be undertaken within two three-week shutdown periods.

Mill 9 was the first unit to be replaced with installation teams working back-to-back shifts to disconnect and remove the ESP, as well as support structures, the existing fan and ducting.

The new system included the installation of new screw conveyors, rotary airlocks and the reconfiguration of existing control panels. New 160 kW central exhaust fans and associated clean-gas cleaning were also required.

All work was completed within the timeframe. A short break allowed pre-assembly works to begin on the mill 10 upgrade, before installation of the second new ESP was again completed within the timeframe.

“The construction phases of this project could only begin after detailed planning and the preparation and agreement of risk assessments and method statements (RAMS) to ensure all equipment could be safely removed and replaced,” the company said in a press release. “Working at height with the use of cranes with fly jibs led to an extra level of complexity.”

Despite these complexities, Fairport delivered the construction phase with no lost time incidents or the 15 000 construction hours. Meanwhile, daily averages on both filters are reported to be well below target emissions levels.

Read the article online at: https://www.worldcement.com/europe-cis/14022017/ketton-plant-upgrades-esps/

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