FIELD: power industry.
SUBSTANCE: furnace of a steam hot-water boiler for combustion of loose types of fuel includes a fuel hopper located in its upper part and provided with a charging hatch, from which loose fuel moves downwards under action of gravity force and completely fills in the furnace volume, gaps made between the setting and the boiler, passages in the boiler design, turning grates being the accumulators that carry high temperature and distribute the required combustion air supplied from an ash chamber with a control gate through openings in grate bars to contact zones, flue gas outlet ducts built into the fuel hopper; at that, fuel gases enter the gas ducts through the above passages and gaps. The furnace includes the boiler components with flue gas outlet ducts and high-temperature carrying accumulators arranged throughout the furnace volume filled with fuel and forming the contact zones of loose fuel with air; at that, high-temperature carrying accumulators are provided in their lower part with conduits for air supply to the contact zones.
EFFECT: invention allows increasing the controlled furnace capacity at maximum complete processing of all calorific properties used as fuel of materials at certain dimensions of the device and reducing hazardous emissions to atmosphere.
1 dwg
