Paper mill boiler chemical cleaning - why, when and how?

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.

Learn more about boiler chemical cleaning

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:

• How deposits and their thicknesses, densities and compositions affect boiler reliability and efficiency.
• The steps required to plan and execute a boiler chemical cleaning program.
• Effective chemical cleaning methodologies to provide the shortest outage duration.
• How to minimize and/or eliminate hazard exposure to personnel and the environment.

Download and read the white paper and give your Valmet representative a call to discuss boiler cleaning best practices.