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Start-up and Load Burners

Start-up and Load Burners

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Managing Director​
Juha Tonttila
Tel.  +358 207 871 527


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Enviroburners start-up and load burners are developed with more than 100 successful projects executed in the past 35 years. The main applications are BFB and CFB technology boilers and biomass gasifiers. Our products include start-up burners for over-bed applications, in-duct burners and load burners for low-NOx applications.

Our burners are designed for the demanding environment in fluidized bed and recovery boilers. These burners are always customized to meet specific end-users’ layout and process requirements. The constructions and materials are developed to withstand mechanical and chemical wear and furnace heat for each specific application. This results high availability in less need for service and spare parts in demanding furnace conditions

CFD modelling, several air registers, steam cooling nozzles and high quality instruments ensures low emissions and high availability.

Start-up and load burners are designed for all traditional fuel oils and combustible gases. Typical start-up/load burner system includes: burner, auxiliary fuel train. Burner management system is also available as an option.

Start-up burners

Application: BFB/CFB boilers and gasifiers, Hot gas generators,
Fuel:  Natural gas / LPG
Light fuel oil /
Heavy Fuel oil
Burner capacity:  1…35 MWth
Operating mode:  Modulated
Turndown:  At least 3:1
Atomizing medium (fuel oils):  Dry pressure air, 600 kPa (g)/Saturated steam
Combustion air:  Normal fresh/Preheated air, 2,5-5 kPa
Air/fuel ratio: 0,7...1,1
Cooling air:  If the burner is shut down, 10 - 15 % of the combustion air supply should be left on as a source of cooling air for BFB/CFB applications
Ignition device: High energy spark igniter, 4…12 J
Natural gas / propane operated igniter, 120 kW
Approvals:  
 

Load burners

Application: BFB/CFB boilers and gasifiers, Hot gas generators,
Fuel: Natural gas / LPG
Light fuel oil /
Heavy Fuel oil
Burner capacity: 2…60 MWth
Operating mode: Modulated
Turndown: At least 4:1
Atomizing medium (fuel oils): Dry pressure air, 600 kPa (g)/Saturated steam
Combustion air: Normal fresh/Preheated air, 2,5-5 kPa
Air/fuel ratio: 1,1..1,2
Cooling air: If the burner is shut down, 10 - 15 % of the combustion air supply should be left on as a source of cooling air for BFB/CFB applications
Ignition device:  High energy spark igniter, 4…12 J
Natural gas / propane operated igniter, 120 kW
Emission values:

NOx: <100 - 200 mg/Nm³ (O2 3%) depending on application.

Approvals:  

Under Construction