Optimization and measurements

Optimization activities carried out by SBB ENERGY S.A. include:

• Analysis of basic boiler operation parameters,
• Analysis of the distribution of the excess air coefficient in the furnace chamber,
• Assessment of the correctness of indications of I&C facility equipment,
• Combustion air balance control,
• Assessment of the possibility of the UAR characteristics change (in DCS systems),
• General assessment of the technical condition and quality of mill installations operation,
• General assessment of the cleanliness of the boiler’s heating surfaces,
• General assessment of the cleanliness of the Rotary Air Heaters.

Optimization of primary nitrogen oxide reduction methods includes:

• Introduction of sub-stoichiometric combustion in the burner belt,
• Reduction of O2 content with the use of coatings protecting against low oxygen corrosion,
• Use of low-emission burners of a special design, changes of the inclination angles,
• Implementation of conclusions from the measurements of air flow to the boiler,
• Secondary air grading at the height of the combustion chamber,
• Control of the operation of steam blowers and dust phones,
• Introduction of corrections to the AMA of the boiler, within the existing regulatory possibilities specified in SIEK the Detailed Instructions for Boiler Operation; introduction of new characteristics and changes to the boiler’s AMA (specified in the settings albums).

Optimization of secondary nitrogen oxide reduction methods includes:

• Methods of selective non-catalytic reduction SNCR (Selective Non-Catalityc Reduction),
• Methods of selective catalytic reduction SCR (Selective Catalityc Reduction),
• Methods of selective catalytic reduction of SCR type Tail End,
• Methods of simultaneous removal of sulfur dioxide and nitrogen oxides,
• An innovative method by SBB – Hybrid DeNOx System.

Optimization of boilers operation includes:

• Analysis of the quality of mill installations operation,
• Improvement of boiler efficiency (reduction of losses of incomplete combustion),
• Improvement of boiler efficiency (steam temperature increase) with auto-regulation of angle changes in the position of the burners,
• Increasing the flexibility of boiler operation (e.g. by modifying the AMA, curves changes),
• Analysis of the quality of burned fuel and the assessment of the impact on the operational and low-emission parameters,
• Staff training in the use of the introduced corrections and operation of additional deNOx installations,
• Meeting technical requirements, e.g. in terms of downstream steam parameters of the boiler,
• Meeting the safe combustion process requirements for dust, jet and vortex burners,
• Meeting the safe combustion process requirements for various types of boilers with pulverized jet burners, vortex burners, fluidized bed boilers and boilers with grate furnaces.

Measurements of boilers, mills, fans include:

• Determination of thermal losses and boiler efficiency along with the implementation of conclusions based on the measurements taken,
• Determination of the heat balance of the boiler,
• Determination of the operating parameters of mill systems along with the implementation of conclusions based on the measurements taken,
• Determination of flue gas pressures and temperatures distribution in the furnace chamber and flue gas ducts along with the implementation of conclusions based on the measurements taken,
• Determination of combustion air pressures and temperatures distribution along with the implementation of conclusions based on the measurements taken,
• Determination of the combustion air balance,
• Determination of flue gas composition (NOx, SO2, CO, CO2),
• Verification of tightness of the installation in the way of flue gas,
• Fuel and furnace waste analyzes in an accredited external laboratory, eg GIG, Energopomiar,
• ICHPW.

SBB ENERGY S.A. also provides services in the field of:

• Selection of the best possible location of O2 motion and temperature probes in order to obtain an accurate data for the operation of the boiler – tests carried out with various variants of boiler and mill systems operation,
• Performing measurements of NOx, SO2, CO, CO2 emissions using reference methods,
• Measurements of temperature distribution in the furnace chamber using HVT probes
• Measurements of the particle residence time in boiler furnaces or Thermal Waste Processing Plants,
• Ongoing testing of the content of combustible parts (by roasting in a chamber furnace at 850° C) and of NH3 (using chemical reagents) in fly ash.