BURNER, ESPECIALLY A JET BURNER, FOR BURNING POWERED FUEL, ESPECIALLY POWERED COAL, AND A BURNABLE FLUID

摘要

The present invention relates to powdered fuel, in particular powdered coal and flammable fluid combustion burners, in particular jet burners, wherein at least one powdered coal nozzle disposed in a circulating air nozzle and a plurality of powdered coal nozzles are used, respectively, disposed between two powdered coal nozzles. A secondary air nozzle with a circular cross section, a middle air nozzle, an oil burner gun, an outer tube, and a swirl device mounted thereon, which concentrically surrounds the oil burner gun; It consists of an enclosed secondary air nozzle including an air nozzle, an oil burner gun, an outer tube, and a swirl device, and the oil burner gun is axially movable in the secondary air nozzle, and retracts during coal operation. The nozzle discharge port of the vehicle air nozzle and the end surface of the nozzle section are opened, and the oil is composed of an under great air nozzle and an over great air nozzle which are advanced during operation. .