ANDRITZ autonomous recovery boiler solutions

Maximize the potential of your recovery boiler with digitalization.

ANDRITZ is a globally leading supplier of recovery boilers, with decades of process know-how in the Pulp & Paper industry. Combining our process expertise and state-of-the-art digitalization technologies, ANDRITZ has developed autonomous recovery boiler solutions, an all-in-one Industry 4.0 solution to help your recovery boiler achieve increased stability, availability, productivity, safety, and chemical recovery as well as reduced emissions and OPEX. In addition, an increasing level of autonomy can be obtained gradually through step-by-step integration of the autonomous recovery boiler solutions.

Get familiar with ANDRITZ autonomous recovery boiler solutions by watching the video below.



Metris AVA, Advanced Visual Analysis, utilizes cutting-edge computer vision technology that turns images into valuable data. AVA carry-over measurement provides carry-over compositions in real time, and automatic sampling is possible by carry-over robotAVA char bed diagnostics measure the char bed in three dimensions, while AVA spray orientation measures the black liquor spray orientation and the shape of the spray.

The HEWI weight indication system measures the ash load directly in hanging heat-transfer surfaces, providing real-time fouling information. This data is then combined with Sootblowing ACE to create smart solutions providing on-demand sootblowing. SMART sootblowing optimizes sootblowing sequences wherever and whenever necessary. This results in reduced steam consumption for sootblowing, extended water washing cycles as well as increased boiler availability and production efficiency.

The smelt spout area is one of the least desirable work environments in a recovery boiler – nonetheless, regular spout cleaning is needed for efficient and smooth operation. ANDRITZ has developed the Smelt spout robot, a fully automated robot performing smelt spout cleaning on demand with the aid of AVA smelt flow measurement. In addition, the Smelt Spout Robot can take reduction samples automatically for AVA reduction measurement. All of the AVA data is incorporated into the control system, e.g. Combustion ACE, a proven smart control system that maximizes reduction, combustion capacity, and electricity production as well as reducing operator workload. Boiler operation is then very stable and fully automated. Finally, the WLA leakage advisor monitors the boiler’s operational status continuously and alerts operators to any potential leakage risks.

With autonomous recovery boiler solutions, ANDRITZ is aiming to bring added value to your recovery boilers and maximize their potential. Together, we will help you to succeed in the new era of digitalization throughout the whole lifecycle of the boiler.


Through ANDRITZ Autonomous Recovery Boiler Solutions, pulp producers can increase stability, availability, productivity, safety and chemical recovery all at a very high autonomy level. Listen to our SPECTRUM podcast episode and watch the graphical recording for more insights!


ANDRITZ's expert team mastering recovery boiler solutions.
Meet Members of the ANDRITZ Recovery Boiler Sales Team

The ANDRITZ recovery boiler product group has performed in excellent fashion over recent years with the sales team securing a high percentage of the market across the globe. But who are they, where do they work, and what makes them so special?

Keeping it Safe: Machine Learning in Water Leakage Detection

In the search for maximal safety in recovery boiler operation, ANDRITZ has developed its state-of-the-art Metris Water Leakage Advisor (WLA) to reduce the risk of explosions in the furnace of the boiler. Smurfit Kappa Nettingsdorf in Austria is the first mill to receive delivery of the WLA and has been instrumental in the co-development of the new solution.

Autonomous Recovery Island Solutions

We are in the middle of a massive digital transformation in all areas of our lives – at home, at work, even in our cars – as digitalization fully enters our lives. The pulp industry has by no means been ignored, and now there are already promising results being seen at pulp mills as the latest in Metris Digital Solutions from ANDRITZ bring major advantages to process islands.

Improving Safety in the Recovery Boiler – ANDRITZ Smelt Spout Cleaning Systems

ANDRITZ Smelt Spout Cleaning Systems are proving to be something of a hit with recovery boiler operators world-wide, with several successful installations and more than 20 new systems on order. Nevertheless, the work never stops in developing the robotic systems further; ANDRITZ experts have devised a number of new features that help to provide an even safer working environment, as well as new intelligent tools for managing efficiency in a recovery boiler.

SPECTRUM Podcast - Episode #04

The recovery boiler is often considered to be the heart of a pulp mill, and it is undoubtedly vital for environmental and economically sustainable production.

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