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ANDRITZ EnviroBurner multifuel solutions

Advanced industrial burner solutions for boilers, furnaces, process heating and side stream utilization designed for demanding process conditions. Technologies to mitigate emissions and to oxidize harmful substances. Expertise of non-conventional fuels, biofuels and multifuel implementation.

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ANDRITZ burner solutions are designed to utilize industrial side streams, biofuels and other sustainable fuels to generate green energy thus reducing the CO2 footprint of the main process. Even streams previously considered as waste can be processed to produce valuable chemicals and raw materials instead of simply iicinerating them.

A good example is the pulp mill CNCG (Concentrated Non-Condensible Gas) collection system combined with a sulfuric acid production unit (SulfoLoop™). In the process the reduced sulfur rich CNCG stream is combusted to SO2 to be further converted into sulfuric acid. Methanol/turpentine as the byproducts of pulping are commonly used to replace fossil fuels in recovery boilers, lime kilns and auxiliary boilers inside the pulp mill. Particle board or plywood mills can utilize sander dust as a fuel to reduce external fuel consumption. In the future green hydrogen and its derivatives such as green methanol are likely to enter the market as major sustainable fuel alternatives for several industries and burner applications.

ANDRITZ burner systems are always specifically designed to meet customer requirements and specifications for optimum performance and to comply with all applicable local regulations and emission limits. Along with our products, ANDRITZ know-how and long experience will guide the burner system engineering, component and material selection to provide customers with the best, most cost efficient burner solution.


Typical scope of ANDRITZ burner solutions equipment supply consists of:

  • Burners including relevant connections to the process, windbox, air dampers, fuel lances and nozzles, flame detectors, ignition devices and other auxiliary equipment
  • Hoses / bellows
  • Valve (shut-off) and control units for fuels with internal pneumatics and wiring
  • Additional safety equipment (if required): flame arresters, ruptured discs, etc.
  • Local control boxes / Junction boxes / HMI displays
  • Project documentation

Additionally by request:

  • Burner Management System
  • Air fans
  • Pumping and pre-heating units for liquid fuels
  • Filter units for gaseous fuels
  • Pneumatic conveying and supply systems for pulverized fuels, mainly wood dust

In co-operation within ANDRITZ and with external partners, wider scope deliveries are also possible including piping, ducting, tanks, silos, installation services etc.

Products

A picture of a start-up and load burners side by side

Start-up and load burners

  • Designed for the demanding environment in fluidized bed and recovery boilers, mainly for Bubbling Fluidized Bed (BFB) and Circulating Fluidized Bed (CFB) technology boilers and biomass gasifiers
  • Structures and materials are developed to withstand mechanical wear, chemical erosion and the furnace heat for each specific application


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Burner solutions for biofuels and alternative fuels

  • Burner technology for bio-oils eg. tall oil, pitch, vegetable oils
  • Burner tehcnology for wood dust, sander dust as an auxiliary or a stand-alone fuel. Other pulverized fuels possible
  • Compact burner solution for combustion of low calorific value gases without additional fuel eg. gasification product gas and process gases
  • Burner technology for H2, CH3OH(l)


Photo of a burner designed for burning gaseous and liquid side streams

Burner solutions for side streams

  • Suitable for combustion and incineration of various gaseous and liquid side streams
    • Reliable and safe
  • Burners for non-condensible gases, especially pulp mill concentrated NCG (CNCG/LVHC gas)
    • Combined sulphur-CNCG burner for SulfoLoop™ sulfuric acid plant
  • Incinerator technology for pulp mill concentrated and diluted NCGs
    • Enclosed flare incerators for back-up with rapid start-up
    • Thermal oxidizers with quench
  • Incinerator technology for other gases and liquids
    • Enclosed flare incinerators
    • Thermal oxiders
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Burners solutions for metallurgical processes

  • Burner technology for flash smelting – conventional and oxygen enriched
  • Burners for roaster furnaces and calciners
  • Burners for anode furnace
  • Launder and ladle burners for refractory heating


Image of burner's computational fluid dynamics

Research and development

  • Principle of continuous development and improvement
  • Feedback collection from commissioning and existing deliveries
  • Computational fluid dynamics (CFD) utilized as a development tool
  • Actual topics: emission reduction, and combining electric heating with burner technology

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Comprehensive service to support customer processes: from replacement parts to complete mill maintenance...

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