COMBUSTION DEVICE FOR CRUSHED WOOD WASTE Russian patent published in 2018 - IPC F23G5/00 F23B60/00 

FIELD: power industry.

SUBSTANCE: invention is intended for thermal treatment of crushed wood waste of 3 hazard class, for example, old railway sleepers impregnated with antiseptic agents (coal-containing kreozote impregnating oil), wood chipboards (WCB), fiber boards (FB), waste products of furniture industries, for the purpose of recycling heat, with the content in their combustion products of a low concentration of harmful and carcinogenic substances. In the combustion device for crushed wood waste containing a combustion chamber 1, a burning grate 10, a funnel 5, air nozzles 4, an ash bin 11, a charging branch, according to the invention, the charging branch is executed in the form of a screw with a reverse 7 for transporting the crushed wood waste to the burning grate 10 and attached to the combustion chamber 1, where the air nozzles 4 are arranged in sections. In the lower section with respect to the inner wall 3 of the combustion chamber, the air nozzles 4 made in the form of rectangular tubes that are disposed tangentially, in the middle section, the air nozzles 4 are made in the form of cylindrical tubes that are disposed chordal to the inner wall 3 of the combustion chamber 1, in the upper section the air nozzles 4 are made in the form of cylindrical tubes that are disposed radially along the normal to the inner wall 3 of the combustion chamber 1. The arrangement of the air nozzles relative to the sections of the combustion chamber is arranged in a certain order to provide an intensification of heat and mass transfer throughout the volume of the combustion chamber.

EFFECT: increasing the efficiency of combustion device for crushed wood waste due to increasing intensification of heat and mass transfer, by improving the combustion efficiency of solid fuel in the form of crushed wood waste, which increases operational safety and environmental friendliness.

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