Substance of problem
Anthracite culm being used on the power stations of Ukraine is characterized by typical for its low reactivity and also by high ash content. The consequence of it is low culm calorific value. Mentioned leads to the necessity of burning such coal with auxiliary fuel – natural gas or mazut in the amount of 15-30 % from the boiler heat load. Development and realization of effective calm combustion technologies allow to greatly reduce the consumption of deficient auxiliary fuels.
The primary elements of project are equipment for flame hold and equipment for air-fuel mixture reactivity increase. The last is placed in the present boiler burners.
Project realization promotes to reduction of auxiliary gas fuel consumption and also to considerable reduce of pollutant emissions in atmosphere.
Economics benefit after manufacturing application on the boiler with steam capacity 220 t/h amounts to ~0,5 millions $, maintenance project ( project development and application) – 60-65 thousands $, pay-back period – 2,5 months.