| 摘要 |
<p>Gas is mixed into a main flow of gas in a cylindrical conduit (1) by means of one or more feed conduits (2,3). In order to achieve good mixing and to avoid concentrations of the added gas, the feed conduits (2,3) have in total two openings (4,5) for outflow of the added gas, which openings (4,5) are spaced from the wall of the cylindrical conduit (1), are symmetrically located with respect to the axis of the cylindrical conduit (1) and lie in a plane perpendiculartothat axis. The axis of these openings are mutually spaced by less than one half of the internal diameter of the conduit. The added gas emerges from the two openings in mutually opposite parallel directions, so that it tends to circulate around the axis. The arrangement has been found advantageous when applied to the feed of gaseous fuel to hot blast stoves of a blast furnace.</p> |
