07 Feb 2020. There are two main functions of the rear arch of the coal-fired steam boiler. The first function is to ignite the second function is to keep warm and promote combustion. Furthermore the length of the rear arch is decided by the types of coal. If the coal is flammable and volatile the length of rear arch is shorter otherwise it is longer.
The role of coal fired heating boiler air preheater is to raise the hot blast temperatureimprove combustion conditionsreduce the heat loss of boiler combustionrecycle the flue gas heatreduce exhaust temperaturereduce the boiler exhaust heat lossstrengthen the radiation of heat transfer in the furnacereduce the furnace heated areasave the metal consumption of boiler heating surface.
CFBcirculating fluidized bed coal fired hot water boiler. Product thermal capacity: 58-116 MW Working pressure: 1.25-1.6 MPA Outlet temperature: 90/70 150/130
H. Widell in Biomass Combustion Science Technology and Engineering 2013 Furnace design. Just as coal-fired boilers are not designed in the same way as oil- or gas-fired boilers neither can biomass-fired boilers be designed as coal-fired boilers if they are to function efficiently. Biomass firing requires a larger furnace (i.e. a larger radiation heat transfer surface) than coal firing.
The function of the coal fired thermal power plant is to convert the energy available in the coal to Electricity. Coal power plants work by using several steps to convert stored energy in coal to usable electricity that we find in our home that powers our lights computers