Test results of fuel additive in the boiler with grate firing of coal

Now the domestic heat-and-power engineering has no experience of use of fuel additives to increase efficiency of fuel usage in coal boilers. However abroad this direction of increase in efficiency of combustion of solid fuels has been widely adopted, that, first of all, is caused by search of technologies for “ecologization” of use of “dirty” coal. The article contains the results of industrial tests of complex fuel additive of catalyzing and modifying action in the coal boiler KV-r-11.63-115 in one of the boiler houses in Novokuznetsk, Kemerovo region. The test results showed increase in gross efficiency of the boiler unit for 5,1 % (abs.) along with the corresponding decrease in consumption of coal fuel to produce one unit of heat energy. Application of the additive also led to cleaning of furnace tube from a layer of deposits and changing of structure of slag formed at combustion of coal which became more homogeneous and without agglomeration centers.