Case Studies

Energy from Waste Facility, United Kingdom

Waste to Energy Plant

The company had 12-16 unscheduled, irregular shutdowns each year, caused by clinker forming in sand in the fluidized bed in the bottom of the boiler.

When fluidisation in the furnace becomes unstable or emissions change, the furnace had to be shutdown. The furnace and the boiler then required rapid safety clean before entering the boiler for the offline clean of the bed.

Online Cleaning Technologies has agreed to start these safety cleans within 24 hours after the request is placed. Clear procedures enable rapid and structured detonative deslagging resulting the overall shutdown times to be reduced by more than 50%. Rapid and safe entrance becomes possible and as such results in a shorter shutdown periods and increased plant availability.

The maintenance manager stated:

‘The speed of response of Online Cleaning Technologies is beyond anything we normally expect from our contractors.’

Due to the good results for the safety cleaning, Online Cleaning Technologies has also been appointed to clean the 2nd and 3rd passes and hoppers. After initial trial projects in 2011-2013, the partnership intensified in 2014 with a structured and regular maintenance contract for multiple parts of the installation to perform proactive and reactive cleans.

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