| 摘要 |
<p>1. Burner of solid, pulverized or finely divided fuels and of liquid and/or gaseous fuels permitting to control whilst switched on, the shape of the flame and the flowing speeds of the fuels and air, characterized in that it comprises, inside a tubular external casing (13) equipped with a refractory coating, three other co-axial tubes which define four conduits : a first central conduit (1) which contains several pipes (1a, 1b) which supply liquid and/or gaseous fuels to a device (1c) for pulverizing or injecting said fuels, a second annular conduit (2) directly surrounding the central conduit (1) and which transports clean air, a third annular conduit (3) directly surrounding the second conduit and which transports a mixture of solid fuel particles in suspension in a transporting gas and a fourth external conduit (4) which is externally defined by the said casing (13) and which transports clean air and the front ends of the second and fourth conduit comprise a regulating device (5, 6) provided with a remote-control member (7, 8) permitting to change, in service, the direction of the air coming out of the said conduits.</p> |
