Fixed grate system were for many years the most
common devices for combustion of biomass.ln its simplest form, a fixed grate
system consists of a grate in the combustion room
(thereby forming the furnace). Primary air, for the
combustion, is supplied under the grate. The secondary air, for combustion of the
volatile gases themselves, is supplied above the grate.
Typical combustion temperatures in fixed-grate systems range from 850 to 1,400 C. Traditionally, ash is removed manually from fixed-bed systems, although automatic ash removal systems are available on request.
Suitable for fuel
Pulverized cool 2. Rice husk