平炉の空気力学的構成(VII)

噴流の機能

抄録

The burner jet is an important constituent of the open-hearth furnace. It has to induce a favourable flow, in harmony with the uptake flow and the space of the furnace, and to compose the rational mechanism of combustion.
Model studies on the arrangement and the functions of the burner jet explained followings:
(1) The inserting length of the burner is appropriate to be a quarter of the chamber width.
(2) The setting height of the burner is 30% of the chamber width and its inclination is 12°.
(3) The burner direction affects largely and sensitively the combustion and the wear of the furnace.
(4) The combustion is controlled by changing the quantity of the atomizing agent or uptake air.
(5) The intensities and the directions of the twin burner jets have large effect on the furnace flow, the flame lengths of the twin jets are shortened by increasing the jet fluxes and slight convergence of the burner directions.