METHOD AND DEVICE FOR COMBUSTION OF DOMESTIC WASTES AND VARIOUS KINDS OF HYDROCARBON FUELS IN PULSATING FLOW (ALTERNATIVES) Russian patent published in 2003 - IPC

FIELD: gasifying chambers for chemical recovery of domestic wastes. SUBSTANCE: device has shaft, fire-grates, and draft tube. According to alternative 1 shaft is provided with adjustable flaps with actuating mechanisms in bottom inlet section and in top outlet one. Draft tube has inlet and outlet lengths with flap-controlled flow sections. These lengths are made in the form of axisymmetrical connections installed inside draft tube in annual space relation for displacement by means of actuating mechanisms. Rows of holes are made on draft tube and on displaceable lengths. Fan installed at inlet of shaft has its adjustable blades capable of setting in weather-vane position. Newly installed are vortex generators. Speed and temperature sensors communicating with actuating mechanisms and with control unit are mounted at inlets and outlets of shaft and draft tube. Combustor of alternative 2 has adjustable nozzle at draft tube outlet fitted with outlet section incorporating adjustable flaps and ejector extension. Section with adjustable flaps is made in the form of axisymmetrical connection installed outside at adjustable-nozzle outlet in annular space relation for telescopic displacement along connection made of hinged segments; rows of holes are made on outlet section of adjustable nozzle. Section and adjustable nozzles are provided with actuating mechanisms communicating with control unit. Speed and temperature sensors communicating with control unit are installed at shaft inlet and at draft- tube inlet and outlet. EFFECT: augmented combustion process, improved environmental friendliness of device. 18 cl, 2 dwg