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Black Liquor Boilers

Metalspray Cladding for Black Liquor Recovery Boilers (BLRB’s)

IGS has decades of experience providing corrosion protection for carbon steel boiler tubes found in BLRB’s. Common areas where our technology is utilized to mitigate corrosion from high temperature sulfidation attacks and where our Metalspray Cladding Systems are most effective are on WaterWall Tubes, Nose Arch Tubes, and Superheaters Tubes. At IGS, we couple our technical expertise and our application experience together to ensure our customers receive long term, reliable solutions, which increase their Recovery Boiler Reliability from a corrosion mitigation perspective. Our execution teams understand the dynamics of working in an outage environment and we recognize our customers need to meet their critical path maintenance schedules. At IGS we strive to deliver the highest quality HVTS Metalspray Cladding Systems, on time, with the highest quality and safely standards in the industry.

BLRB Boiler Safety Considerations

Our Metalspray Cladding Systems are designed to protect the WaterWall Tubes from general loss of wall thickness from the fireside of the furnace. With enhanced corrosion protection our customers introduce a corrosion protection factor onto their boiler tubes. A loss of tube thickness could result in the potential for a pin hole to develop in a boiler tube, which could create a boiler tube leak, the result being the mill would go into an Emergency Shutdown Procedure (ESP) which can have a significant impact on personnel safety if a smelt/water reaction were to take place.

IGS Experience Field 

IGS has over the 35 years of experience working in the Pulp & Paper Industry. Over the past 35 years we have provided our Metalspray Cladding Services to many of the leading Pulp & Paper Companies around the globe. Our team of experienced project managers, superintendents, foremen, safety managers, and HVTS technicians ensures that IGS is always ready to deliver high quality in situ Metalspray Cladding applications, anytime and anywhere. Because we are a global company, we do not rely on increasing our pool of technicians with part time help in the spring and fall busy periods, and then reducing our pool of technicians in the winter and summer. It is always outage season somewhere around the globe, so we maintain a strong experienced workforce year around.

IGS Experience Shop

IGS also has a state of the art shop facility where we can process new replacement waterwall boiler tube panels and apply our Metalspray Cladding with automation to the new waterwall panels prior to their being delivered to site and installed for service. This option allows our customers to design in long term corrosion protection solutions, which will enhance the corrosion protection factor of the carbon steel tubes and extend their run time considerably.

IGS Technology 

Our core technology is the IGS High-Velocity Thermal Spray (HVTS) metal alloy cladding system. HVTS is utilized to provide a field installed CRA, that is used to mitigate corrosion in BLRB process environments. Our HVTS cladding systems typically utilize modified super alloys with proven performance in high-temp conditions and provide a protective layer on the fireside of boiler tubes.

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