Boilers and their reliable performance are essential for every operating unit of a pulp and paper mill. However, excess deposits inside a boiler's tubes may cause failure of the tubes which not only results in lost production but also, in the case of recovery boilers, places mill personnel and equipment at risk of injury and damage.
Upon obtaining a threshold deposit weight density, deposits should be removed to prevent tube failure and increase efficiency. The removal of deposits by chemical means during an outage has been proven to be the most effective and efficient method.
A Valmet white paper, available HERE, presents information about why and when a boiler requires chemical cleaning. Methods to remove deposits are described, which will prevent tube failure and increase heat transfer efficiency. The white paper discusses factors that contribute to a good boiler chemical cleaning program, including:
Download and read the white paper and give your Valmet representative a call to discuss boiler cleaning best practices.