COMBINED BARK-WOOD FIRING DEVICE Russian patent published in 2021 - IPC F23B10/00 

FIELD: waste processing.

SUBSTANCE: invention relates to a device for the incineration of waste processing and processing of wood biomass and can be used in industrial heat power engineering. The combustion device for burning bark-wood fuel contains pre-furnaces separated by a front screen, equipped with fuel supply devices, fixed inclined and horizontal mechanical grates and devices for supplying primary air under the grates, illuminating gas-oil burners, and a main combustion chamber equipped with gas-oil burners. The outer surface of the wall tubes facing the pre-furnace is covered with a layer of refractory material, the main combustion chamber is equipped with the mouth of the "cold" funnel narrowed with the help of water-cooled panels, secondary blast input devices to which the slag removal system is connected, additional burners installed on the rear wall, inertial-gravitational devices located outside the exit window, and feeders with ash channels, providing the supply of the fuel-ash mixture from the bunkers of the inertial-gravitational devices to the ejectors for its transportation by hot air to additional burners.

EFFECT: invention allows increasing the technical, economic and environmental performance of the combustion device when burning bark-wood waste with a wide range of changes in the composition of the fuel mixture with a relative humidity per working mass up to 65% and to increase the efficiency of boilers when burning a fuel mixture of a heterogeneous particle size distribution without the use of high-calorific fuels (gas or fuel oil).

1 cl, 1 dwg